Mercurial > hg > index.cgi
annotate docs/manual/manual.html @ 463:42be9eec7935
Make pcr relative forward references better able to select 8 bit offsets
author | William Astle <lost@l-w.ca> |
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date | Wed, 28 Feb 2018 23:00:59 -0700 |
parents | cad5937314cb |
children | a71206ed966c |
rev | line source |
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1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"> |
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2 <HTML |
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3 ><HEAD |
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4 ><TITLE |
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5 >LW Tool Chain</TITLE |
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6 ><META |
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7 NAME="GENERATOR" |
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8 CONTENT="Modular DocBook HTML Stylesheet Version 1.79"></HEAD |
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9 ><BODY |
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10 CLASS="BOOK" |
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11 BGCOLOR="#FFFFFF" |
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12 TEXT="#000000" |
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13 LINK="#0000FF" |
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14 VLINK="#840084" |
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15 ALINK="#0000FF" |
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16 ><DIV |
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17 CLASS="BOOK" |
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18 ><A |
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19 NAME="AEN1" |
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20 ></A |
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21 ><DIV |
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22 CLASS="TITLEPAGE" |
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23 ><H1 |
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24 CLASS="TITLE" |
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25 ><A |
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26 NAME="AEN2" |
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27 >LW Tool Chain</A |
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28 ></H1 |
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29 ><H3 |
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30 CLASS="AUTHOR" |
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31 ><A |
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32 NAME="AEN4" |
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33 ></A |
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34 >William Astle</H3 |
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35 ><H3 |
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36 CLASS="AUTHOR" |
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37 ><A |
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38 NAME="AEN7" |
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39 ></A |
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40 >LWTools Contributors </H3 |
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41 ><P |
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42 CLASS="COPYRIGHT" |
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43 >Copyright © 2009-2015 William Astle and LWTools contributors</P |
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44 ><HR></DIV |
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45 ><DIV |
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46 CLASS="TOC" |
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47 ><DL |
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48 ><DT |
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49 ><B |
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50 >Table of Contents</B |
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51 ></DT |
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52 ><DT |
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53 >1. <A |
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54 HREF="#AEN13" |
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55 >Introduction</A |
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56 ></DT |
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57 ><DD |
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58 ><DL |
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59 ><DT |
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60 >1.1. <A |
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61 HREF="#AEN16" |
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62 >History</A |
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63 ></DT |
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64 ></DL |
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65 ></DD |
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66 ><DT |
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67 >2. <A |
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68 HREF="#AEN21" |
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69 >Output Formats</A |
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70 ></DT |
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71 ><DD |
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72 ><DL |
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73 ><DT |
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74 >2.1. <A |
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75 HREF="#AEN24" |
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76 >Raw Binaries</A |
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77 ></DT |
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78 ><DT |
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79 >2.2. <A |
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80 HREF="#AEN27" |
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81 >DECB Binaries</A |
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82 ></DT |
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83 ><DT |
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84 >2.3. <A |
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85 HREF="#AEN32" |
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86 >ASCII Hexadecimal</A |
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87 ></DT |
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88 ><DT |
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89 >2.4. <A |
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90 HREF="#AEN36" |
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91 >Motorola S-Record</A |
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92 ></DT |
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93 ><DT |
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94 >2.5. <A |
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95 HREF="#AEN41" |
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96 >Intel Hex</A |
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97 ></DT |
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98 ><DT |
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99 >2.6. <A |
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100 HREF="#AEN46" |
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101 >OS9 Modules</A |
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102 ></DT |
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103 ><DT |
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104 >2.7. <A |
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105 HREF="#AEN54" |
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106 >Object Files</A |
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107 ></DT |
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108 ></DL |
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109 ></DD |
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110 ><DT |
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111 >3. <A |
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112 HREF="#AEN62" |
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113 >LWASM</A |
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114 ></DT |
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115 ><DD |
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116 ><DL |
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117 ><DT |
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118 >3.1. <A |
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119 HREF="#AEN65" |
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120 >Command Line Options</A |
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121 ></DT |
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122 ><DT |
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123 >3.2. <A |
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124 HREF="#AEN218" |
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125 >Dialects</A |
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126 ></DT |
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127 ><DT |
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128 >3.3. <A |
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129 HREF="#AEN227" |
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130 >Source Format</A |
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131 ></DT |
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132 ><DT |
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133 >3.4. <A |
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134 HREF="#AEN237" |
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135 >Symbols</A |
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136 ></DT |
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137 ><DT |
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138 >3.5. <A |
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139 HREF="#AEN242" |
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140 >Numbers and Expressions</A |
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141 ></DT |
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142 ><DT |
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143 >3.6. <A |
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144 HREF="#AEN250" |
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145 >Assembler Directives</A |
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146 ></DT |
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147 ><DD |
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148 ><DL |
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149 ><DT |
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150 >3.6.1. <A |
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151 HREF="#AEN253" |
153
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152 >Data Directives</A |
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153 ></DT |
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154 ><DT |
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155 >3.6.2. <A |
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156 HREF="#AEN364" |
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157 >Address Definition</A |
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158 ></DT |
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159 ><DT |
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160 >3.6.3. <A |
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161 HREF="#AEN415" |
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162 >Conditional Assembly</A |
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163 ></DT |
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164 ><DT |
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165 >3.6.4. <A |
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166 HREF="#AEN486" |
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167 >OS9 Target Directives</A |
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168 ></DT |
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169 ><DT |
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170 >3.6.5. <A |
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171 HREF="#AEN511" |
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172 >Miscelaneous Directives</A |
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173 ></DT |
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174 ></DL |
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175 ></DD |
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176 ><DT |
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177 >3.7. <A |
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178 HREF="#AEN551" |
153
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179 >Macros</A |
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180 ></DT |
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181 ><DT |
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182 >3.8. <A |
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183 HREF="#AEN574" |
153
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184 >Structures</A |
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185 ></DT |
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186 ><DT |
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187 >3.9. <A |
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188 HREF="#AEN595" |
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189 >Object Files and Sections</A |
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190 ></DT |
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191 ><DT |
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192 >3.10. <A |
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193 HREF="#AEN659" |
153
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194 >Assembler Modes and Pragmas</A |
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195 ></DT |
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196 ><DT |
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197 >3.11. <A |
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198 HREF="#CONVINST" |
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199 >Convenience Instructions</A |
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200 ></DT |
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201 ><DT |
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202 >3.12. <A |
455 | 203 HREF="#AEN805" |
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204 >Cycle Counts</A |
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205 ></DT |
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206 ></DL |
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207 ></DD |
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208 ><DT |
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209 >4. <A |
455 | 210 HREF="#AEN811" |
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211 >LWLINK</A |
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212 ></DT |
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213 ><DD |
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214 ><DL |
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215 ><DT |
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216 >4.1. <A |
455 | 217 HREF="#AEN814" |
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218 >Command Line Options</A |
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219 ></DT |
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220 ><DT |
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221 >4.2. <A |
455 | 222 HREF="#AEN911" |
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223 >Linker Operation</A |
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224 ></DT |
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225 ><DT |
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226 >4.3. <A |
455 | 227 HREF="#AEN925" |
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228 >Linking Scripts</A |
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229 ></DT |
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230 ><DT |
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231 >4.4. <A |
455 | 232 HREF="#AEN991" |
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233 >Format Specific Linking Notes</A |
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234 ></DT |
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235 ><DD |
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236 ><DL |
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237 ><DT |
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238 >4.4.1. <A |
455 | 239 HREF="#AEN994" |
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240 >OS9 Modules</A |
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241 ></DT |
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242 ></DL |
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243 ></DD |
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244 ></DL |
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245 ></DD |
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246 ><DT |
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247 >5. <A |
455 | 248 HREF="#AEN1006" |
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249 >Libraries and LWAR</A |
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250 ></DT |
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251 ><DD |
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252 ><DL |
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253 ><DT |
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254 >5.1. <A |
455 | 255 HREF="#AEN1010" |
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256 >Command Line Options</A |
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257 ></DT |
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258 ></DL |
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259 ></DD |
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260 ><DT |
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261 >6. <A |
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262 HREF="#OBJCHAP" |
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263 >Object Files</A |
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264 ></DT |
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265 ></DL |
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266 ></DIV |
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267 ><DIV |
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268 CLASS="LOT" |
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269 ><DL |
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270 CLASS="LOT" |
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271 ><DT |
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272 ><B |
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273 >List of Tables</B |
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274 ></DT |
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275 ><DT |
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276 >6-1. <A |
455 | 277 HREF="#AEN1093" |
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278 >Object File Term Types</A |
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279 ></DT |
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280 ><DT |
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281 >6-2. <A |
455 | 282 HREF="#AEN1123" |
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283 >Object File Operator Numbers</A |
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284 ></DT |
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285 ></DL |
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286 ></DIV |
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287 ><DIV |
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288 CLASS="CHAPTER" |
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289 ><HR><H1 |
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290 ><A |
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291 NAME="AEN13" |
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292 ></A |
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293 >Chapter 1. Introduction</H1 |
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294 ><P |
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295 >The LW tool chain provides utilities for building binaries for MC6809 and |
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296 HD6309 CPUs. The tool chain includes a cross-assembler and a cross-linker |
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297 which support several styles of output.</P |
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298 ><DIV |
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299 CLASS="SECTION" |
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300 ><HR><H2 |
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301 CLASS="SECTION" |
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302 ><A |
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303 NAME="AEN16" |
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304 >1.1. History</A |
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305 ></H2 |
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306 ><P |
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307 >For a long time, I have had an interest in creating an operating system for |
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308 the Coco3. I finally started working on that project around the beginning of |
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309 2006. I had a number of assemblers I could choose from. Eventually, I settled |
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310 on one and started tinkering. After a while, I realized that assembler was not |
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311 going to be sufficient due to lack of macros and issues with forward references. |
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312 Then I tried another which handled forward references correctly but still did |
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313 not support macros. I looked around at other assemblers and they all lacked |
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314 one feature or another that I really wanted for creating my operating system.</P |
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315 ><P |
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316 >The solution seemed clear at that point. I am a fair programmer so I figured |
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317 I could write an assembler that would do everything I wanted an assembler to |
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318 do. Thus the LWASM probject was born. After more than two years of on and off |
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319 work, version 1.0 of LWASM was released in October of 2008.</P |
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320 ><P |
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321 >As the aforementioned operating system project progressed further, it became |
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322 clear that while assembling the whole project through a single file was doable, |
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323 it was not practical. When I found myself playing some fancy games with macros |
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324 in a bid to simulate sections, I realized I needed a means of assembling |
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325 source files separately and linking them later. This spawned a major development |
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326 effort to add an object file support to LWASM. It also spawned the LWLINK |
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327 project to provide a means to actually link the files.</P |
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328 ></DIV |
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329 ></DIV |
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330 ><DIV |
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331 CLASS="CHAPTER" |
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332 ><HR><H1 |
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333 ><A |
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334 NAME="AEN21" |
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335 ></A |
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336 >Chapter 2. Output Formats</H1 |
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337 ><P |
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338 >The LW tool chain supports multiple output formats. Each format has its |
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339 advantages and disadvantages. Each format is described below.</P |
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340 ><DIV |
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341 CLASS="SECTION" |
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342 ><HR><H2 |
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343 CLASS="SECTION" |
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344 ><A |
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345 NAME="AEN24" |
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346 >2.1. Raw Binaries</A |
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347 ></H2 |
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348 ><P |
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349 >A raw binary is simply a string of bytes. There are no headers or other |
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350 niceties. Both LWLINK and LWASM support generating raw binaries. ORG directives |
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351 in the source code only serve to set the addresses that will be used for |
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352 symbols but otherwise have no direct impact on the resulting binary.</P |
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353 ></DIV |
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354 ><DIV |
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355 CLASS="SECTION" |
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356 ><HR><H2 |
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357 CLASS="SECTION" |
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358 ><A |
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359 NAME="AEN27" |
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360 >2.2. DECB Binaries</A |
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361 ></H2 |
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362 ><P |
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363 >A DECB binary is compatible with the LOADM command in Disk Extended |
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364 Color Basic on the CoCo. They are also compatible with CLOADM from Extended |
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365 Color Basic. These binaries include the load address of the binary as well |
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366 as encoding an execution address. These binaries may contain multiple loadable |
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367 sections, each of which has its own load address.</P |
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368 ><P |
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369 >Each binary starts with a preamble. Each preamble is five bytes long. The |
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370 first byte is zero. The next two bytes specify the number of bytes to load |
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371 and the last two bytes specify the address to load the bytes at. Then, a |
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372 string of bytes follows. After this string of bytes, there may be another |
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373 preamble or a postamble. A postamble is also five bytes in length. The first |
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374 byte of the postamble is $FF, the next two are zero, and the last two are |
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375 the execution address for the binary.</P |
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376 ><P |
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377 >Both LWASM and LWLINK can output this format.</P |
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378 ></DIV |
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379 ><DIV |
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380 CLASS="SECTION" |
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381 ><HR><H2 |
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382 CLASS="SECTION" |
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383 ><A |
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384 NAME="AEN32" |
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385 >2.3. ASCII Hexadecimal</A |
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386 ></H2 |
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387 ><P |
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388 >This human-readable ASCII hexadecimal format consists of CR+LF terminated |
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389 lines of ASCII text. Each line has the following structure: a zero-padded |
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390 four-digit ASCII hex address, a colon separator, and one or more zero-padded |
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391 two-digit hex values separated by commas. ASCII Hexadecimal format favors |
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392 paragraph-aligned addresses (i.e. a least significant address nybble value |
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393 of zero). During output, the number of hex values on each line are adjusted |
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394 to align the address of the next line on a paragraph boundary. The sequence |
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395 of addresses in the ASCII Hexadecimal file directly follows that of the source |
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396 file; multiple ORG directives in the source code may result in out-of-sequence |
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397 addresses in the ASCII Hexadecimal output.</P |
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398 ><P |
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399 >LWASM can output this format since version 4.10.</P |
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400 ></DIV |
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401 ><DIV |
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402 CLASS="SECTION" |
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403 ><HR><H2 |
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404 CLASS="SECTION" |
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405 ><A |
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406 NAME="AEN36" |
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407 >2.4. Motorola S-Record</A |
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408 ></H2 |
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409 ><P |
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410 >This ASCII format consists of a series of CR+LF terminated "records" of ASCII |
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411 text. Each record has the following structure: a start-of-record character |
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412 "S", an ASCII record type digit (0-9), a two-digit ASCII hex byte count, a |
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413 four-digit ASCII hex address, an optional sequence of two-digit ASCII hex data |
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414 values, and a two-digit ASCII hex checksum. The LW tool chain issues only S0, |
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415 S1, S5 and S9 record types. S1 records are limited to maximum of 16 data bytes |
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416 in length, and paragraph alignment of addresses is favored. The address |
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417 sequence of the S-Records directly follows that of the source file; multiple |
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418 ORG directives in the source code may result in out-of-sequence addresses in |
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419 the S-Record output. </P |
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420 ><P |
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421 >Motorola S-Record format is a standard ASCII format accepted by most memory |
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422 device programming equipment. It is particularly useful when the assembled |
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423 code output is destined to reside within an EPROM or Flash memory device, |
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424 for example.</P |
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425 ><P |
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426 >LWASM can output this format since version 4.10. LWLINK can output this format |
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427 since version 4.11.</P |
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428 ></DIV |
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429 ><DIV |
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430 CLASS="SECTION" |
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431 ><HR><H2 |
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432 CLASS="SECTION" |
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433 ><A |
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434 NAME="AEN41" |
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435 >2.5. Intel Hex</A |
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436 ></H2 |
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437 ><P |
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438 >This ASCII format consists of a series of CR+LF terminated "records" of ASCII |
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439 text. Each record has the following structure: a start-of-record character |
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440 ":", a two-digit ASCII hex byte count, a four-digit ASCII hex address, a two- |
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441 digit ASCII hex record type, an optional sequence of two-digit ASCII hex data |
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442 values, and a two-digit ASCII hex checksum. The LW tool chain issues only 00, |
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443 and 01 Intel Hex record types. Data records are limited to maximum of 16 |
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444 data bytes in length, and paragraph alignment of addresses is favored. The |
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445 address sequence of the Intel hex records directly follows that of the source |
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446 file; multiple ORG directives in the source code may result in out-of-sequence |
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447 addresses in the Intel Hex output. </P |
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448 ><P |
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449 >Intel Hex format is the other standard ASCII format accepted by most memory |
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450 device programming equipment, it and the Motorola S-Record format are used for |
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451 similar purposes.</P |
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452 ><P |
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453 >LWASM can output this format since version 4.10.</P |
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454 ></DIV |
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455 ><DIV |
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456 CLASS="SECTION" |
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457 ><HR><H2 |
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458 CLASS="SECTION" |
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459 ><A |
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460 NAME="AEN46" |
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461 >2.6. OS9 Modules</A |
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462 ></H2 |
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463 ><P |
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464 > Since version 2.5, LWASM is able to generate OS9 modules. The syntax is |
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465 basically the same as for other assemblers. A module starts with the MOD |
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466 directive and ends with the EMOD directive. The OS9 directive is provided |
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467 as a shortcut for writing system calls. </P |
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468 ><P |
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469 > LWASM does NOT provide an OS9Defs file. You must provide your own. Also note |
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470 that the common practice of using "ifp1" around the inclusion of the OS9Defs |
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471 file is discouraged as it is pointless and can lead to unintentional |
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472 problems and phasing errors. Because LWASM reads each file exactly once, |
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473 there is no benefit to restricting the inclusion to the first assembly pass. </P |
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474 ><P |
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475 > As of version 4.5, LWASM also implements the standard data/code address |
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476 streams for OS9 modules. That means that between MOD and EMOD, any RMB, |
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477 RMD, RMQ, or equivalent directives will move the data address ahead and |
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478 leave the code address unmodified. Outside of an actual module, both the |
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479 code and data addresses are moved ahead equally. That last bit is critical |
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480 to understand because it means any directives that follow an EMOD directive |
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481 may have different results than other assemblers. </P |
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482 ><P |
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483 > Additionally, within a module body, the ORG directive sets only the data |
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484 address, not the code address. However, outside a module body, ORG sets both |
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485 addresses. </P |
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486 ><P |
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487 >Both code and data addresses are reset to 0 by the MOD directive.</P |
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488 ><P |
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489 > As of version 4.5, LWLINK also supports creation of OS9 modules. </P |
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490 ></DIV |
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491 ><DIV |
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492 CLASS="SECTION" |
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493 ><HR><H2 |
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494 CLASS="SECTION" |
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495 ><A |
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496 NAME="AEN54" |
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497 >2.7. Object Files</A |
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498 ></H2 |
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499 ><P |
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500 >LWASM supports generating a proprietary object file format which is |
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501 described in <A |
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502 HREF="#OBJCHAP" |
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503 >Chapter 6</A |
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504 >. LWLINK is then used to link these |
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505 object files into a final binary in any of LWLINK's supported binary |
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506 formats.</P |
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507 ><P |
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508 >Object files also support the concept of sections which are not valid |
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509 for other output types. This allows related code from each object file |
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510 linked to be collapsed together in the final binary.</P |
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511 ><P |
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512 >Object files are very flexible in that they allow references that are not |
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513 known at assembly time to be resolved at link time. However, because the |
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514 addresses of such references are not known at assembly time, there is no way |
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515 for the assembler to deduce that an eight bit addressing mode is possible. |
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516 That means the assember will default to using sixteen bit addressing |
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517 whenever an external or cross-section reference is used.</P |
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518 ><P |
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519 >As of LWASM 2.4, it is possible to force direct page addressing for an |
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520 external reference. Care must be taken to ensure the resulting addresses |
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521 are really in the direct page since the linker does not know what the direct |
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522 page is supposed to be and does not emit errors for byte overflows.</P |
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523 ><P |
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524 >It is also possible to use external references in an eight bit immediate |
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525 mode instruction. In this case, only the low order eight bits will be used. |
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526 Again, no byte overflows will be flagged.</P |
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527 ></DIV |
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528 ></DIV |
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529 ><DIV |
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530 CLASS="CHAPTER" |
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531 ><HR><H1 |
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532 ><A |
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533 NAME="AEN62" |
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534 ></A |
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535 >Chapter 3. LWASM</H1 |
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536 ><P |
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537 >The LWTOOLS assembler is called LWASM. This chapter documents the various |
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538 features of the assembler. It is not, however, a tutorial on 6x09 assembly |
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539 language programming.</P |
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540 ><DIV |
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541 CLASS="SECTION" |
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542 ><HR><H2 |
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543 CLASS="SECTION" |
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544 ><A |
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545 NAME="AEN65" |
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546 >3.1. Command Line Options</A |
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547 ></H2 |
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548 ><P |
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549 >The binary for LWASM is called "lwasm". Note that the binary is in lower |
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550 case. lwasm takes the following command line arguments.</P |
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551 ><P |
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552 ></P |
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553 ><DIV |
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554 CLASS="VARIABLELIST" |
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555 ><DL |
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556 ><DT |
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557 ><CODE |
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558 CLASS="OPTION" |
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559 >--6309</CODE |
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560 >, <CODE |
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561 CLASS="OPTION" |
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562 >-3</CODE |
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563 ></DT |
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564 ><DD |
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565 ><P |
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566 >This will cause the assembler to accept the additional instructions available |
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567 on the 6309 processor. This is the default mode; this option is provided for |
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568 completeness and to override preset command arguments.</P |
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569 ><P |
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570 >This option is the same as if the first line of the source code is "PRAGMA 6309".</P |
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571 ></DD |
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572 ><DT |
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573 ><CODE |
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574 CLASS="OPTION" |
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575 >--6800compat</CODE |
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576 ></DT |
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577 ><DD |
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578 ><P |
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579 >This is equivalent to <CODE |
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580 CLASS="OPTION" |
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581 >--pragma=6800compat</CODE |
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582 >.</P |
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583 ><P |
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584 >This will enable recognition of 6800 compatibility instructions.</P |
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585 ></DD |
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586 ><DT |
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587 ><CODE |
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588 CLASS="OPTION" |
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589 >--6809</CODE |
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590 >, <CODE |
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591 CLASS="OPTION" |
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592 >-9</CODE |
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593 ></DT |
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594 ><DD |
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595 ><P |
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596 >This will cause the assembler to reject instructions that are only available |
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597 on the 6309 processor. This actually has the effect of starting the assembler |
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598 as though the first line of the source is "PRAGMA 6809".</P |
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599 ></DD |
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600 ><DT |
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601 ><CODE |
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602 CLASS="OPTION" |
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603 >--decb</CODE |
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604 >, <CODE |
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605 CLASS="OPTION" |
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606 >-b</CODE |
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607 ></DT |
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608 ><DD |
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609 ><P |
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610 >Select the DECB output format target. Equivalent to <CODE |
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611 CLASS="OPTION" |
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612 >--format=decb</CODE |
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613 >.</P |
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614 ><P |
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615 >While this is the default output format currently, it is not safe to rely |
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616 on that fact. Future versions may have different defaults. It is also trivial |
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617 to modify the source code to change the default. Thus, it is recommended to specify |
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618 this option if you need DECB output.</P |
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619 ></DD |
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620 ><DT |
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621 ><CODE |
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622 CLASS="OPTION" |
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623 >--format=type</CODE |
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624 >, <CODE |
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625 CLASS="OPTION" |
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626 >-f type</CODE |
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627 ></DT |
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628 ><DD |
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629 ><P |
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630 >Select the output format. Valid values are <CODE |
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631 CLASS="OPTION" |
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632 >obj</CODE |
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633 > for the |
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634 object file target, <CODE |
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635 CLASS="OPTION" |
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636 >decb</CODE |
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637 > for the DECB LOADM format, |
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638 <CODE |
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639 CLASS="OPTION" |
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640 >os9</CODE |
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641 > for creating OS9 modules, <CODE |
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642 CLASS="OPTION" |
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643 >raw</CODE |
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644 > for |
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645 a raw binary, <CODE |
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646 CLASS="OPTION" |
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647 >hex</CODE |
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648 > for ASCII hexadecminal format, |
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649 <CODE |
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650 CLASS="OPTION" |
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651 >srec</CODE |
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652 > for Motorola S-Record format, and <CODE |
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653 CLASS="OPTION" |
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654 >ihex</CODE |
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655 > |
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656 for Intel Hex format.</P |
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657 ></DD |
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658 ><DT |
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659 ><CODE |
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660 CLASS="OPTION" |
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661 >--list[=file]</CODE |
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662 >, <CODE |
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663 CLASS="OPTION" |
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664 >-l[file]</CODE |
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665 ></DT |
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666 ><DD |
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667 ><P |
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668 >Cause LWASM to generate a listing. If <CODE |
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669 CLASS="OPTION" |
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670 >file</CODE |
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671 > is specified, |
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672 the listing will go to that file. Otherwise it will go to the standard output |
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673 stream. By default, no listing is generated. Unless <CODE |
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674 CLASS="OPTION" |
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675 >--symbols</CODE |
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676 > |
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677 is specified, the list will not include the symbol table.</P |
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678 ></DD |
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679 ><DT |
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680 ><CODE |
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681 CLASS="OPTION" |
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682 >--symbols</CODE |
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683 >, <CODE |
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684 CLASS="OPTION" |
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685 >-s</CODE |
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686 ></DT |
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687 ><DD |
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688 ><P |
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689 >Causes LWASM to generate a list of symbols when generating a listing. |
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690 It has no effect unless a listing is being generated.</P |
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691 ></DD |
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692 ><DT |
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693 ><CODE |
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694 CLASS="OPTION" |
369
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695 >--symbols-nolocals</CODE |
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696 ></DT |
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697 ><DD |
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698 ><P |
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699 >Behaves just like <CODE |
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700 CLASS="OPTION" |
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701 >--symbols</CODE |
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702 > but with local labels omitted.</P |
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703 ></DD |
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704 ><DT |
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705 ><CODE |
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706 CLASS="OPTION" |
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707 >--map=FILE</CODE |
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708 ></DT |
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|
709 ><DD |
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710 ><P |
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711 > This option generates a map file which can be used by debuggers and monitors to provide symbol information. A map file may be created independent of a listing file. (Patches are pending for MAME and exec09.) </P |
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712 ></DD |
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|
713 ><DT |
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|
714 ><CODE |
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|
715 CLASS="OPTION" |
153
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|
716 >--obj</CODE |
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|
717 ></DT |
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|
718 ><DD |
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|
719 ><P |
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|
720 >Select the proprietary object file format as the output target.</P |
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|
721 ></DD |
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|
722 ><DT |
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|
723 ><CODE |
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|
724 CLASS="OPTION" |
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|
725 >--output=FILE</CODE |
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|
726 >, <CODE |
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|
727 CLASS="OPTION" |
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|
728 >-o FILE</CODE |
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|
729 ></DT |
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|
730 ><DD |
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|
731 ><P |
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|
732 >This option specifies the name of the output file. If not specified, the |
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|
733 default is <CODE |
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|
734 CLASS="OPTION" |
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|
735 >a.out</CODE |
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|
736 >.</P |
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|
737 ></DD |
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|
738 ><DT |
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|
739 ><CODE |
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|
740 CLASS="OPTION" |
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|
741 >--pragma=pragma</CODE |
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|
742 >, <CODE |
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|
743 CLASS="OPTION" |
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|
744 >-p pragma</CODE |
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|
745 ></DT |
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|
746 ><DD |
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|
747 ><P |
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|
748 >Specify assembler pragmas. Multiple pragmas are separated by commas. The |
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|
749 pragmas accepted are the same as for the PRAGMA assembler directive described |
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|
750 below.</P |
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|
751 ></DD |
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|
752 ><DT |
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|
753 ><CODE |
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|
754 CLASS="OPTION" |
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|
755 >--raw</CODE |
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|
756 >, <CODE |
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|
757 CLASS="OPTION" |
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|
758 >-r</CODE |
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|
759 ></DT |
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|
760 ><DD |
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|
761 ><P |
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|
762 >Select raw binary as the output target.</P |
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|
763 ></DD |
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|
764 ><DT |
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|
765 ><CODE |
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|
766 CLASS="OPTION" |
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|
767 >--includedir=path</CODE |
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|
768 >, <CODE |
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|
769 CLASS="OPTION" |
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|
770 >-I path</CODE |
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|
771 ></DT |
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|
772 ><DD |
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|
773 ><P |
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|
774 >Add <CODE |
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|
775 CLASS="OPTION" |
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|
776 >path</CODE |
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|
777 > to the end of the include path.</P |
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|
778 ></DD |
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|
779 ><DT |
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|
780 ><CODE |
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|
781 CLASS="OPTION" |
231
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782 >--define=SYM[=VAL]</CODE |
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783 >, <CODE |
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|
784 CLASS="OPTION" |
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|
785 >-D SYM[=VAL]</CODE |
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786 ></DT |
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787 ><DD |
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788 ><P |
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|
789 >Pre-defines the symbol SYM as either the specified VAL. If VAL is omitted, |
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790 the symbol is defined as 1. The symbol will be defined as though it were |
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791 defined using the SET directive in the assembly source. That means it can |
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|
792 be overridden by a SET directive within the source code. Attempting to |
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793 redefine SYM using EQU will result in a multiply defined symbol error.</P |
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794 ></DD |
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795 ><DT |
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|
796 ><CODE |
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|
797 CLASS="OPTION" |
394
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|
798 >-t WIDTH</CODE |
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|
799 >, <CODE |
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|
800 CLASS="OPTION" |
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|
801 >--tabs=WIDTH</CODE |
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|
802 ></DT |
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|
803 ><DD |
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|
804 ><P |
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|
805 >Specifies the handling of tabs in listing files. <CODE |
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806 CLASS="OPTION" |
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807 >--tabs=0</CODE |
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808 > |
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809 disables tab expansion. <CODE |
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810 CLASS="OPTION" |
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|
811 >--tabs=8</CODE |
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812 > is the default setting.</P |
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813 ></DD |
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814 ><DT |
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815 ><CODE |
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|
816 CLASS="OPTION" |
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|
817 >--help</CODE |
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|
818 >, <CODE |
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|
819 CLASS="OPTION" |
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parents:
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|
820 >-?</CODE |
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parents:
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|
821 ></DT |
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parents:
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|
822 ><DD |
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|
823 ><P |
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|
824 >Present a help screen describing the command line options.</P |
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|
825 ></DD |
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|
826 ><DT |
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|
827 ><CODE |
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|
828 CLASS="OPTION" |
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|
829 >--usage</CODE |
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parents:
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|
830 ></DT |
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parents:
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|
831 ><DD |
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|
832 ><P |
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|
833 >Provide a summary of the command line options.</P |
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|
834 ></DD |
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|
835 ><DT |
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|
836 ><CODE |
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|
837 CLASS="OPTION" |
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|
838 >--version</CODE |
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|
839 >, <CODE |
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|
840 CLASS="OPTION" |
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|
841 >-V</CODE |
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|
842 ></DT |
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|
843 ><DD |
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|
844 ><P |
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|
845 >Display the software version.</P |
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|
846 ></DD |
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parents:
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|
847 ><DT |
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|
848 ><CODE |
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|
849 CLASS="OPTION" |
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|
850 >--debug</CODE |
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|
851 >, <CODE |
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|
852 CLASS="OPTION" |
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|
853 >-d</CODE |
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|
854 ></DT |
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|
855 ><DD |
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|
856 ><P |
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|
857 >Increase the debugging level. Only really useful to people hacking on the |
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|
858 LWASM source code itself.</P |
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|
859 ></DD |
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|
860 ></DL |
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|
861 ></DIV |
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|
862 ></DIV |
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|
863 ><DIV |
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|
864 CLASS="SECTION" |
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|
865 ><HR><H2 |
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|
866 CLASS="SECTION" |
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|
867 ><A |
394
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|
868 NAME="AEN218" |
153
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|
869 >3.2. Dialects</A |
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|
870 ></H2 |
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|
871 ><P |
333
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872 > LWASM supports all documented MC6809 instructions as defined by |
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873 Motorola. By default, this does not include any MC6800 compatibility |
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874 instructions. As of LWASM 4.11, those compatibility instructions can be |
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875 enabled using the <CODE |
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876 CLASS="PARAMETER" |
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877 >--6800compat</CODE |
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|
878 > option or the |
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879 <CODE |
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880 CLASS="PARAMETER" |
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881 >6800compat</CODE |
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882 > pragma. It also supports all known HD6309 |
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883 instructions. While there is general agreement on the pneumonics for most |
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884 of the 6309 instructions, there is some variance with the block transfer |
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885 instructions. TFM for all four variations seems to have gained the most |
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|
886 traction and, thus, this is the form that is recommended for LWASM. |
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887 However, it also supports COPY, COPY-, IMP, EXP, TFRP, TFRM, TFRS, and TFRR. |
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888 It further adds COPY+ as a synomym for COPY, IMPLODE for IMP, and EXPAND for |
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|
889 EXP. </P |
153
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|
890 ><P |
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|
891 >By default, LWASM accepts 6309 instructions. However, using the |
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|
892 <CODE |
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|
893 CLASS="PARAMETER" |
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|
894 >--6809</CODE |
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|
895 > parameter, you can cause it to throw errors on |
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|
896 6309 instructions instead.</P |
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|
897 ><P |
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898 >The standard addressing mode specifiers are supported. These are the |
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|
899 hash sign ("#") for immediate mode, the less than sign ("<") for forced |
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900 eight bit modes, and the greater than sign (">") for forced sixteen bit modes.</P |
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|
901 ><P |
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902 >Additionally, LWASM supports using the asterisk ("*") to indicate |
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|
903 base page addressing. This should not be used in hand-written source code, |
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|
904 however, because it is non-standard and may or may not be present in future |
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|
905 versions of LWASM.</P |
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|
906 ></DIV |
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|
907 ><DIV |
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|
908 CLASS="SECTION" |
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|
909 ><HR><H2 |
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|
910 CLASS="SECTION" |
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|
911 ><A |
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|
912 NAME="AEN227" |
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|
913 >3.3. Source Format</A |
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|
914 ></H2 |
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|
915 ><P |
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|
916 >LWASM accepts plain text files in a relatively free form. It can handle |
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|
917 lines terminated with CR, LF, CRLF, or LFCR which means it should be able |
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918 to assemble files on any platform on which it compiles.</P |
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|
919 ><P |
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|
920 >Each line may start with a symbol. If a symbol is present, there must not |
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|
921 be any whitespace preceding it. It is legal for a line to contain nothing |
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|
922 but a symbol.</P |
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|
923 ><P |
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|
924 >The op code is separated from the symbol by whitespace. If there is |
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|
925 no symbol, there must be at least one white space character preceding it. |
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|
926 If applicable, the operand follows separated by whitespace. Following the |
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|
927 opcode and operand is an optional comment.</P |
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|
928 ><P |
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|
929 > It is important to note that operands cannot contain any whitespace |
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|
930 except in the case of delimited strings. This is because the first |
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|
931 whitespace character will be interpreted as the separator between the |
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|
932 operand column and the comment. This behaviour is required for approximate |
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|
933 source compatibility with other 6x09 assemblers. </P |
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|
934 ><P |
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|
935 >A comment can also be introduced with a * or a ;. The comment character is |
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|
936 optional for end of statement comments. However, if a symbol is the only |
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|
937 thing present on the line other than the comment, the comment character is |
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|
938 mandatory to prevent the assembler from interpreting the comment as an opcode.</P |
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939 ><P |
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940 >For compatibility with the output generated by some C preprocessors, LWASM |
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941 will also ignore lines that begin with a #. This should not be used as a general |
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|
942 comment character, however.</P |
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|
943 ><P |
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|
944 >The opcode is not treated case sensitively. Neither are register names in |
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945 the operand fields. Symbols, however, are case sensitive.</P |
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|
946 ><P |
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947 > As of version 2.6, LWASM supports files with line numbers. If line |
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948 numbers are present, the line must start with a digit. The line number |
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949 itself must consist only of digits. The line number must then be followed |
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950 by either the end of the line or exactly one white space character. After |
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951 that white space character, the lines are interpreted exactly as above. </P |
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952 ></DIV |
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953 ><DIV |
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|
954 CLASS="SECTION" |
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955 ><HR><H2 |
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956 CLASS="SECTION" |
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957 ><A |
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958 NAME="AEN237" |
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959 >3.4. Symbols</A |
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960 ></H2 |
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|
961 ><P |
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962 >Symbols have no length restriction. They may contain letters, numbers, dots, |
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963 dollar signs, and underscores. They must start with a letter, dot, or |
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964 underscore.</P |
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965 ><P |
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966 >LWASM also supports the concept of a local symbol. A local symbol is one |
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967 which contains either a "?" or a "@", which can appear anywhere in the symbol. |
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968 The scope of a local symbol is determined by a number of factors. First, |
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969 each included file gets its own local symbol scope. A blank line will also |
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|
970 be considered a local scope barrier. Macros each have their own local symbol |
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971 scope as well (which has a side effect that you cannot use a local symbol |
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972 as an argument to a macro). There are other factors as well. In general, |
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973 a local symbol is restricted to the block of code it is defined within.</P |
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974 ><P |
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975 >By default, unless assembling to the os9 target, a "$" in the symbol will |
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976 also make it local. This can be controlled by the "dollarlocal" and |
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977 "nodollarlocal" pragmas. In the absence of a pragma to the contrary, for |
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978 the os9 target, a "$" in the symbol will not make it considered local while |
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|
979 for all other targets it will.</P |
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|
980 ></DIV |
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981 ><DIV |
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|
982 CLASS="SECTION" |
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|
983 ><HR><H2 |
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|
984 CLASS="SECTION" |
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|
985 ><A |
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986 NAME="AEN242" |
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987 >3.5. Numbers and Expressions</A |
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988 ></H2 |
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989 ><P |
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990 > Numbers can be expressed in binary, octal, decimal, or hexadecimal. Binary |
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991 numbers may be prefixed with a "%" symbol or suffixed with a "b" or "B". |
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992 Octal numbers may be prefixed with "@" or suffixed with "Q", "q", "O", or |
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993 "o". Hexadecimal numbers may be prefixed with "$", "0x" or "0X", or suffixed |
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994 with "H". No prefix or suffix is required for decimal numbers but they can |
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995 be prefixed with "&" if desired. Any constant which begins with a letter |
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996 must be expressed with the correct prefix base identifier or be prefixed |
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997 with a 0. Thus hexadecimal FF would have to be written either 0FFH or $FF. |
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998 Numbers are not case sensitive. </P |
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999 ><P |
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1000 > A symbol may appear at any point where a number is acceptable. The |
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1001 special symbol "*" can be used to represent the starting address of the |
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1002 current source line within expressions. </P |
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1003 ><P |
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1004 >The ASCII value of a character can be included by prefixing it with a |
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1005 single quote ('). The ASCII values of two characters can be included by |
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|
1006 prefixing the characters with a quote (").</P |
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1007 ><P |
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1008 > LWASM supports the following basic binary operators: +, -, *, /, and %. |
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|
1009 These represent addition, subtraction, multiplication, division, and |
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|
1010 modulus. It also supports unary negation and unary 1's complement (- and ^ |
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|
1011 respectively). It is also possible to use ~ for the unary 1's complement |
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1012 operator. For completeness, a unary positive (+) is supported though it is |
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1013 a no-op. LWASM also supports using |, &, and ^ for bitwise or, bitwise and, |
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|
1014 and bitwise exclusive or respectively. </P |
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|
1015 ><P |
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|
1016 > Operator precedence follows the usual rules. Multiplication, division, and |
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|
1017 modulus take precedence over addition and subtraction. Unary operators take |
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|
1018 precedence over binary operators. Bitwise operators are lower precdence |
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1019 than addition and subtraction. To force a specific order of evaluation, |
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1020 parentheses can be used in the usual manner. </P |
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1021 ><P |
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1022 > As of LWASM 2.5, the operators && and || are recognized for boolean and and |
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|
1023 boolean or respectively. They will return either 0 or 1 (false or true). |
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1024 They have the lowest precedence of all the binary operators. </P |
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1025 ></DIV |
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|
1026 ><DIV |
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|
1027 CLASS="SECTION" |
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|
1028 ><HR><H2 |
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|
1029 CLASS="SECTION" |
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1030 ><A |
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1031 NAME="AEN250" |
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1032 >3.6. Assembler Directives</A |
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1033 ></H2 |
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1034 ><P |
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1035 >Various directives can be used to control the behaviour of the |
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1036 assembler or to include non-code/data in the resulting output. Those directives |
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1037 that are not described in detail in other sections of this document are |
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|
1038 described below.</P |
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|
1039 ><DIV |
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|
1040 CLASS="SECTION" |
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|
1041 ><HR><H3 |
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|
1042 CLASS="SECTION" |
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1043 ><A |
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1044 NAME="AEN253" |
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1045 >3.6.1. Data Directives</A |
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|
1046 ></H3 |
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1047 ><P |
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|
1048 ></P |
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|
1049 ><DIV |
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|
1050 CLASS="VARIABLELIST" |
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|
1051 ><DL |
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|
1052 ><DT |
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|
1053 >FCB <CODE |
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|
1054 CLASS="PARAMETER" |
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1055 >expr[,...]</CODE |
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|
1056 >, .DB <CODE |
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|
1057 CLASS="PARAMETER" |
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|
1058 >expr[,...]</CODE |
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|
1059 >, .BYTE <CODE |
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|
1060 CLASS="PARAMETER" |
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1061 >expr[,...]</CODE |
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1062 ></DT |
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1063 ><DD |
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1064 ><P |
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parents:
diff
changeset
|
1065 >Include one or more constant bytes (separated by commas) in the output.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1066 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1067 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1068 >FDB <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1069 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1070 >expr[,...]</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1071 >, .DW <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1072 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1073 >expr[,...]</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1074 >, .WORD <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1075 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1076 >expr[,...]</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1077 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1078 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1079 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1080 >Include one or more words (separated by commas) in the output.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1081 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1082 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1083 >FQB <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1084 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1085 >expr[,...]</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1086 >, .QUAD <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1087 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1088 >expr[,...]</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1089 >, .4BYTE <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1090 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1091 >expr[,...]</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1092 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1093 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1094 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1095 >Include one or more double words (separated by commas) in the output.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1096 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1097 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1098 >FCC <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1099 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1100 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1101 >, .ASCII <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1102 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1103 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1104 >, .STR <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1105 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1106 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1107 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1108 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1109 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1110 >Include a string of text in the output. The first character of the operand |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1111 is the delimiter which must appear as the last character and cannot appear |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1112 within the string. The string is included with no modifications></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1113 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1114 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1115 >FCN <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1116 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1117 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1118 >, .ASCIZ <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1119 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1120 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1121 >, .STRZ <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1122 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1123 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1124 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1125 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1126 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1127 >Include a NUL terminated string of text in the output. The first character of |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1128 the operand is the delimiter which must appear as the last character and |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1129 cannot appear within the string. A NUL byte is automatically appended to |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1130 the string.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1131 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1132 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1133 >FCS <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1134 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1135 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1136 >, .ASCIS <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1137 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1138 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1139 >, .STRS <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1140 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1141 >string</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1142 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1143 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1144 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1145 >Include a string of text in the output with bit 7 of the final byte set. The |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1146 first character of the operand is the delimiter which must appear as the last |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1147 character and cannot appear within the string.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1148 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1149 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1150 >ZMB <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1151 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1152 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1153 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1154 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1155 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1156 >Include a number of NUL bytes in the output. The number must be fully resolvable |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1157 during pass 1 of assembly so no forward or external references are permitted.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1158 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1159 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1160 >ZMD <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1161 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1162 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1163 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1164 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1165 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1166 >Include a number of zero words in the output. The number must be fully |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1167 resolvable during pass 1 of assembly so no forward or external references are |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1168 permitted.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1169 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1170 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1171 >ZMQ <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1172 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1173 >expr<CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1174 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1175 ></CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1176 ></CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1177 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1178 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1179 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1180 >Include a number of zero double-words in the output. The number must be fully |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1181 resolvable during pass 1 of assembly so no forward or external references are |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1182 permitted.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1183 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1184 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1185 >RMB <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1186 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1187 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1188 >, .BLKB <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1189 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1190 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1191 >, .DS <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1192 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1193 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1194 >, .RS <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1195 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1196 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1197 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1198 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1199 ><P |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1200 >Reserve a number of bytes in the output. The number must be fully resolvable |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1201 during pass 1 of assembly so no forward or external references are permitted. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1202 The value of the bytes is undefined.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1203 ></DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1204 ><DT |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1205 >RMD <CODE |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1206 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1207 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1208 ></DT |
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lost@l-w.ca
parents:
diff
changeset
|
1209 ><DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1210 ><P |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1211 >Reserve a number of words in the output. The number must be fully |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1212 resolvable during pass 1 of assembly so no forward or external references are |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1213 permitted. The value of the words is undefined.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1214 ></DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1215 ><DT |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1216 >RMQ <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1217 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1218 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1219 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1220 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1221 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1222 >Reserve a number of double-words in the output. The number must be fully |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1223 resolvable during pass 1 of assembly so no forward or external references are |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1224 permitted. The value of the double-words is undefined.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1225 ></DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1226 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1227 >INCLUDEBIN <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1228 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1229 >filename</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1230 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1231 ><DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1232 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1233 >Treat the contents of <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1234 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1235 >filename</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1236 > as a string of bytes to |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1237 be included literally at the current assembly point. This has the same effect |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1238 as converting the file contents to a series of FCB statements and including |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1239 those at the current assembly point.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1240 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1241 > If <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1242 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1243 >filename</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1244 > beings with a /, the file name |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1245 will be taken as absolute. Otherwise, the current directory will be |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1246 searched followed by the search path in the order specified.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1247 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1248 > Please note that absolute path detection including drive letters will |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1249 not function correctly on Windows platforms. Non-absolute inclusion will |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1250 work, however.</P |
83b7b4ce3bbd
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parents:
diff
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|
1251 ></DD |
254
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William Astle <lost@l-w.ca>
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|
1252 ><DT |
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William Astle <lost@l-w.ca>
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diff
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|
1253 >FILL <CODE |
155799f6cfa5
Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
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diff
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|
1254 CLASS="PARAMETER" |
451 | 1255 >byte</CODE |
254
155799f6cfa5
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William Astle <lost@l-w.ca>
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253
diff
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|
1256 >,<CODE |
155799f6cfa5
Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
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253
diff
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|
1257 CLASS="PARAMETER" |
451 | 1258 >size</CODE |
254
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William Astle <lost@l-w.ca>
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253
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|
1259 ></DT |
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William Astle <lost@l-w.ca>
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diff
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|
1260 ><DD |
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William Astle <lost@l-w.ca>
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diff
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|
1261 ><P |
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diff
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|
1262 >Insert <CODE |
155799f6cfa5
Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
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253
diff
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|
1263 CLASS="PARAMETER" |
155799f6cfa5
Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
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diff
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|
1264 >size</CODE |
155799f6cfa5
Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
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253
diff
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|
1265 > bytes of <CODE |
155799f6cfa5
Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
parents:
253
diff
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|
1266 CLASS="PARAMETER" |
155799f6cfa5
Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
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253
diff
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|
1267 >byte</CODE |
155799f6cfa5
Add documentation for the FILL pseudo operation
William Astle <lost@l-w.ca>
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253
diff
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|
1268 >.</P |
155799f6cfa5
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William Astle <lost@l-w.ca>
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253
diff
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|
1269 ></DD |
153
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|
1270 ></DL |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1271 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1272 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1273 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1274 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1275 ><HR><H3 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1276 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1277 ><A |
394
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parents:
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diff
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|
1278 NAME="AEN364" |
153
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parents:
diff
changeset
|
1279 >3.6.2. Address Definition</A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1280 ></H3 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1281 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1282 >The directives in this section all control the addresses of symbols |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1283 or the assembly process itself.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1284 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1285 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1286 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1287 CLASS="VARIABLELIST" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1288 ><DL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1289 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1290 >ORG <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1291 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1292 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1293 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1294 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1295 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1296 >Set the assembly address. The address must be fully resolvable on the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1297 first pass so no external or forward references are permitted. ORG is not |
324
b30091890d62
Add documentation of the new hex output formats.
William Astle <lost@l-w.ca>
parents:
316
diff
changeset
|
1298 permitted within sections when outputting to object files. For target formats |
b30091890d62
Add documentation of the new hex output formats.
William Astle <lost@l-w.ca>
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316
diff
changeset
|
1299 that include address information (decb, hex, srec, and ihex), an ORG |
b30091890d62
Add documentation of the new hex output formats.
William Astle <lost@l-w.ca>
parents:
316
diff
changeset
|
1300 directive will re-start the address sequence within the output. When using |
b30091890d62
Add documentation of the new hex output formats.
William Astle <lost@l-w.ca>
parents:
316
diff
changeset
|
1301 the raw target format, ORG is used only to determine the addresses of symbols.</P |
153
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parents:
diff
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|
1302 ></DD |
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lost@l-w.ca
parents:
diff
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|
1303 ><DT |
394
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William Astle <lost@l-w.ca>
parents:
369
diff
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|
1304 >REORG</DT |
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William Astle <lost@l-w.ca>
parents:
369
diff
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|
1305 ><DD |
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William Astle <lost@l-w.ca>
parents:
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diff
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|
1306 ><P |
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William Astle <lost@l-w.ca>
parents:
369
diff
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|
1307 >Sets the assembly address to the value it had immediately prior to the |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1308 previous ORG statement. It is used to continue assembly after some |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1309 specification that required an additional ORG. This directive is primarily |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1310 intended for MACRO-80c compatibility. Consider using alternatives in |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1311 modern code.</P |
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1312 ></DD |
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diff
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|
1313 ><DT |
153
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diff
changeset
|
1314 ><CODE |
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parents:
diff
changeset
|
1315 CLASS="PARAMETER" |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1316 >sym</CODE |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1317 > EQU <CODE |
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parents:
diff
changeset
|
1318 CLASS="PARAMETER" |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1319 >expr</CODE |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1320 >, <CODE |
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lost@l-w.ca
parents:
diff
changeset
|
1321 CLASS="PARAMETER" |
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lost@l-w.ca
parents:
diff
changeset
|
1322 >sym</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1323 > = <CODE |
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lost@l-w.ca
parents:
diff
changeset
|
1324 CLASS="PARAMETER" |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1325 >expr</CODE |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1326 ></DT |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1327 ><DD |
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lost@l-w.ca
parents:
diff
changeset
|
1328 ><P |
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lost@l-w.ca
parents:
diff
changeset
|
1329 >Define the value of <CODE |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1330 CLASS="PARAMETER" |
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lost@l-w.ca
parents:
diff
changeset
|
1331 >sym</CODE |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1332 > to be <CODE |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1333 CLASS="PARAMETER" |
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1334 >expr</CODE |
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1335 >.</P |
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1336 ></DD |
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1337 ><DT |
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1338 ><CODE |
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1339 CLASS="PARAMETER" |
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|
1340 >sym</CODE |
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1341 > SET <CODE |
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|
1342 CLASS="PARAMETER" |
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1343 >expr</CODE |
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|
1344 ></DT |
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|
1345 ><DD |
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|
1346 ><P |
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1347 >Define the value of <CODE |
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|
1348 CLASS="PARAMETER" |
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|
1349 >sym</CODE |
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1350 > to be <CODE |
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|
1351 CLASS="PARAMETER" |
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1352 >expr</CODE |
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1353 >. |
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1354 Unlike EQU, SET permits symbols to be defined multiple times as long as SET |
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1355 is used for all instances. Use of the symbol before the first SET statement |
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1356 that sets its value is undefined.</P |
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1357 ></DD |
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1358 ><DT |
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1359 >SETDP <CODE |
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1360 CLASS="PARAMETER" |
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1361 >expr</CODE |
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1362 ></DT |
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1363 ><DD |
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1364 ><P |
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1365 >Inform the assembler that it can assume the DP register contains |
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1366 <CODE |
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1367 CLASS="PARAMETER" |
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1368 >expr</CODE |
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1369 >. This directive is only advice to the assembler |
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1370 to determine whether an address is in the direct page and has no effect |
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1371 on the contents of the DP register. The value must be fully resolved during |
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1372 the first assembly pass because it affects the sizes of subsequent instructions.</P |
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1373 ><P |
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1374 >This directive has no effect in the object file target.</P |
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1375 ></DD |
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1376 ><DT |
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|
1377 >ALIGN <CODE |
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|
1378 CLASS="PARAMETER" |
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1379 >expr</CODE |
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|
1380 >[,<CODE |
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|
1381 CLASS="PARAMETER" |
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|
1382 >value</CODE |
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|
1383 >]</DT |
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|
1384 ><DD |
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1385 ><P |
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1386 >Force the current assembly address to be a multiple of |
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1387 <CODE |
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|
1388 CLASS="PARAMETER" |
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|
1389 >expr</CODE |
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|
1390 >. If <CODE |
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|
1391 CLASS="PARAMETER" |
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1392 >value</CODE |
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1393 > is not |
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1394 specified, a series of NUL bytes is output to force the alignment, if |
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1395 required. Otherwise, the low order 8 bits of <CODE |
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1396 CLASS="PARAMETER" |
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1397 >value</CODE |
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1398 > |
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1399 will be used as the fill. The alignment value must be fully resolved on the |
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1400 first pass because it affects the addresses of subsquent instructions. |
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1401 However, <CODE |
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|
1402 CLASS="PARAMETER" |
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|
1403 >value</CODE |
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1404 > may include forward references; as |
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1405 long as it resolves to a constant for the second pass, the value will be |
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|
1406 accepted.</P |
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|
1407 ><P |
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1408 >Unless <CODE |
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|
1409 CLASS="PARAMETER" |
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1410 >value</CODE |
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1411 > is specified as something like $12, |
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1412 this directive is not suitable for inclusion in the middle of actual code. |
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1413 The default padding value is $00 which is intended to be used within data |
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1414 blocks. </P |
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1415 ></DD |
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1416 ></DL |
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1417 ></DIV |
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1418 ></DIV |
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|
1419 ><DIV |
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|
1420 CLASS="SECTION" |
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|
1421 ><HR><H3 |
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|
1422 CLASS="SECTION" |
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|
1423 ><A |
394
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|
1424 NAME="AEN415" |
153
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1425 >3.6.3. Conditional Assembly</A |
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1426 ></H3 |
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1427 ><P |
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1428 >Portions of the source code can be excluded or included based on conditions |
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1429 known at assembly time. Conditionals can be nested arbitrarily deeply. The |
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1430 directives associated with conditional assembly are described in this section.</P |
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1431 ><P |
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1432 >All conditionals must be fully bracketed. That is, every conditional |
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1433 statement must eventually be followed by an ENDC at the same level of nesting.</P |
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1434 ><P |
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1435 >Conditional expressions are only evaluated on the first assembly pass. |
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1436 It is not possible to game the assembly process by having a conditional |
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1437 change its value between assembly passes. Due to the underlying architecture |
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1438 of LWASM, there is no possible utility to IFP1 and IFP2, nor can they, as of LWASM 3.0, actually |
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1439 be implemented meaningfully. Thus there is not and never will |
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1440 be any equivalent of IFP1 or IFP2 as provided by other assemblers. Use of those opcodes |
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1441 will throw a warning and be ignored.</P |
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1442 ><P |
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1443 >It is important to note that if a conditional does not resolve to a constant |
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1444 during the first parsing pass, an error will be thrown. This is unavoidable because the assembler |
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1445 must make a decision about which source to include and which source to exclude at this stage. |
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1446 Thus, expressions that work normally elsewhere will not work for conditions.</P |
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1447 ><P |
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1448 ></P |
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|
1449 ><DIV |
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|
1450 CLASS="VARIABLELIST" |
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|
1451 ><DL |
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1452 ><DT |
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|
1453 >IFEQ <CODE |
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|
1454 CLASS="PARAMETER" |
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1455 >expr</CODE |
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1456 ></DT |
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1457 ><DD |
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1458 ><P |
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|
1459 >If <CODE |
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|
1460 CLASS="PARAMETER" |
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|
1461 >expr</CODE |
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|
1462 > evaluates to zero, the conditional |
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|
1463 will be considered true.</P |
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1464 ></DD |
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1465 ><DT |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1466 >IFNE <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1467 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1468 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1469 >, IF <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1470 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1471 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1472 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1473 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1474 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1475 >If <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1476 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1477 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1478 > evaluates to a non-zero value, the conditional |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1479 will be considered true.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1480 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1481 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1482 >IFGT <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1483 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1484 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1485 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1486 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1487 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1488 >If <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1489 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1490 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1491 > evaluates to a value greater than zero, the conditional |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1492 will be considered true.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1493 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1494 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1495 >IFGE <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1496 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1497 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1498 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1499 ><DD |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1500 ><P |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1501 >If <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1502 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1503 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1504 > evaluates to a value greater than or equal to zero, the conditional |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1505 will be considered true.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1506 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1507 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1508 >IFLT <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1509 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1510 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1511 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1512 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1513 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1514 >If <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1515 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1516 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1517 > evaluates to a value less than zero, the conditional |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1518 will be considered true.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1519 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1520 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1521 >IFLE <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1522 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1523 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1524 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1525 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1526 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1527 >If <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1528 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1529 >expr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1530 > evaluates to a value less than or equal to zero , the conditional |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1531 will be considered true.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1532 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1533 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1534 >IFDEF <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1535 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1536 >sym</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1537 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1538 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1539 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1540 >If <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1541 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1542 >sym</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1543 > is defined at this point in the assembly |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1544 process, the conditional |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1545 will be considered true.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1546 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1547 ><DT |
394
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1548 >IFPRAGMA <CODE |
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Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1549 CLASS="PARAMETER" |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1550 >pragma</CODE |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1551 ></DT |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1552 ><DD |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1553 ><P |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1554 >If <CODE |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1555 CLASS="PARAMETER" |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1556 >pragma</CODE |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1557 > is in effect, the condition will be considered true.</P |
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Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1558 ></DD |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
1559 ><DT |
153
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
1560 >IFNDEF <CODE |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1561 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1562 >sym</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1563 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1564 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1565 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1566 >If <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1567 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1568 >sym</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1569 > is not defined at this point in the assembly |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1570 process, the conditional |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1571 will be considered true.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1572 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1573 ><DT |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1574 >ELSE</DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1575 ><DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1576 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1577 >If the preceding conditional at the same level of nesting was false, the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1578 statements following will be assembled. If the preceding conditional at |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1579 the same level was true, the statements following will not be assembled. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1580 Note that the preceding conditional might have been another ELSE statement |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1581 although this behaviour is not guaranteed to be supported in future versions |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1582 of LWASM.</P |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1583 ></DD |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1584 ><DT |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1585 >ENDC</DT |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1586 ><DD |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1587 ><P |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1588 >This directive marks the end of a conditional construct. Every conditional |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1589 construct must end with an ENDC directive.</P |
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lost@l-w.ca
parents:
diff
changeset
|
1590 ></DD |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1591 ></DL |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1592 ></DIV |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1593 ></DIV |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1594 ><DIV |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1595 CLASS="SECTION" |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1596 ><HR><H3 |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
1597 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1598 ><A |
394
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diff
changeset
|
1599 NAME="AEN486" |
153
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parents:
diff
changeset
|
1600 >3.6.4. OS9 Target Directives</A |
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lost@l-w.ca
parents:
diff
changeset
|
1601 ></H3 |
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parents:
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|
1602 ><P |
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|
1603 >This section includes directives that apply solely to the OS9 |
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parents:
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|
1604 target.</P |
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parents:
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|
1605 ><P |
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|
1606 ></P |
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|
1607 ><DIV |
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parents:
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|
1608 CLASS="VARIABLELIST" |
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|
1609 ><DL |
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|
1610 ><DT |
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|
1611 >OS9 <CODE |
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parents:
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|
1612 CLASS="PARAMETER" |
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|
1613 >syscall</CODE |
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parents:
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|
1614 ></DT |
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|
1615 ><DD |
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|
1616 ><P |
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parents:
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|
1617 > This directive generates a call to the specified system call. <CODE |
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parents:
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|
1618 CLASS="PARAMETER" |
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parents:
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|
1619 >syscall</CODE |
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parents:
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|
1620 > may be an arbitrary expression. </P |
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|
1621 ></DD |
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|
1622 ><DT |
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|
1623 >MOD <CODE |
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|
1624 CLASS="PARAMETER" |
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|
1625 >size</CODE |
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|
1626 >,<CODE |
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|
1627 CLASS="PARAMETER" |
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|
1628 >name</CODE |
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|
1629 >,<CODE |
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|
1630 CLASS="PARAMETER" |
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|
1631 >type</CODE |
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|
1632 >,<CODE |
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|
1633 CLASS="PARAMETER" |
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|
1634 >flags</CODE |
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parents:
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|
1635 >,<CODE |
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|
1636 CLASS="PARAMETER" |
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|
1637 >execoff</CODE |
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|
1638 >,<CODE |
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|
1639 CLASS="PARAMETER" |
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|
1640 >datasize</CODE |
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parents:
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|
1641 ></DT |
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parents:
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|
1642 ><DD |
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parents:
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|
1643 ><P |
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1644 > This tells LWASM that the beginning of the actual module is here. It will |
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1645 generate a module header based on the parameters specified. It will also |
83b7b4ce3bbd
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|
1646 begin calcuating the module CRC. </P |
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|
1647 ><P |
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|
1648 > The precise meaning of the various parameters is beyond the scope of this |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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|
1649 document since it is not a tutorial on OS9 module programming. </P |
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|
1650 ></DD |
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|
1651 ><DT |
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|
1652 >EMOD</DT |
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|
1653 ><DD |
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1654 ><P |
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1655 > This marks the end of a module and causes LWASM to emit the calculated CRC |
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|
1656 for the module. </P |
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|
1657 ></DD |
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|
1658 ></DL |
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|
1659 ></DIV |
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|
1660 ></DIV |
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|
1661 ><DIV |
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|
1662 CLASS="SECTION" |
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|
1663 ><HR><H3 |
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1664 CLASS="SECTION" |
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|
1665 ><A |
394
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William Astle <lost@l-w.ca>
parents:
369
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|
1666 NAME="AEN511" |
153
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1667 >3.6.5. Miscelaneous Directives</A |
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|
1668 ></H3 |
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|
1669 ><P |
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parents:
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1670 >This section includes directives that do not fit into the other |
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|
1671 categories.</P |
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|
1672 ><P |
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|
1673 ></P |
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parents:
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|
1674 ><DIV |
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|
1675 CLASS="VARIABLELIST" |
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parents:
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|
1676 ><DL |
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|
1677 ><DT |
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parents:
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|
1678 >INCLUDE <CODE |
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parents:
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|
1679 CLASS="PARAMETER" |
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parents:
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|
1680 >filename</CODE |
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parents:
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|
1681 >, USE <CODE |
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parents:
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|
1682 CLASS="PARAMETER" |
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parents:
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|
1683 >filename</CODE |
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parents:
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|
1684 ></DT |
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parents:
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|
1685 ><DD |
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parents:
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|
1686 ><P |
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parents:
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|
1687 > Include the contents of <CODE |
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parents:
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|
1688 CLASS="PARAMETER" |
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parents:
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|
1689 >filename</CODE |
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lost@l-w.ca
parents:
diff
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|
1690 > at |
83b7b4ce3bbd
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parents:
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|
1691 this point in the assembly as though it were a part of the file currently |
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parents:
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|
1692 being processed. Note that if whitespace appears in the name of the file, |
83b7b4ce3bbd
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parents:
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|
1693 you must enclose <CODE |
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parents:
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|
1694 CLASS="PARAMETER" |
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parents:
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|
1695 >filename</CODE |
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parents:
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|
1696 > in quotes.</P |
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parents:
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|
1697 ><P |
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parents:
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|
1698 >Note that the USE variation is provided only for compatibility with other |
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parents:
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|
1699 assemblers. It is recommended to use the INCLUDE variation.</P |
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parents:
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|
1700 ><P |
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parents:
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|
1701 >If <CODE |
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parents:
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|
1702 CLASS="PARAMETER" |
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parents:
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|
1703 >filename</CODE |
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parents:
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|
1704 > begins with a "/", it is |
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parents:
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|
1705 interpreted as an absolute path. If it does not, the search path will be used |
83b7b4ce3bbd
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|
1706 to find the file. First, the directory containing the file that contains this |
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|
1707 directive. (Includes within an included file are relative to the included file, |
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|
1708 not the file that included it.) If the file is not found there, the include path |
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|
1709 is searched. If it is still not found, an error will be thrown. Note that the |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1710 current directory as understood by your shell or operating system is not searched.</P |
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|
1711 ></DD |
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parents:
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|
1712 ><DT |
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|
1713 >END <CODE |
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|
1714 CLASS="PARAMETER" |
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|
1715 >[expr]</CODE |
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|
1716 ></DT |
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|
1717 ><DD |
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|
1718 ><P |
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|
1719 >This directive causes the assembler to stop assembling immediately as though |
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parents:
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|
1720 it ran out of input. For the DECB target only, <CODE |
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|
1721 CLASS="PARAMETER" |
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|
1722 >expr</CODE |
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|
1723 > |
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|
1724 can be used to set the execution address of the resulting binary. For all |
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parents:
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|
1725 other targets, specifying <CODE |
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parents:
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|
1726 CLASS="PARAMETER" |
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|
1727 >expr</CODE |
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|
1728 > will cause an error.</P |
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|
1729 ></DD |
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|
1730 ><DT |
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|
1731 >ERROR <CODE |
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|
1732 CLASS="PARAMETER" |
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|
1733 >string</CODE |
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|
1734 ></DT |
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|
1735 ><DD |
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1736 ><P |
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parents:
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1737 >Causes a custom error message to be printed at this line. This will cause |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
1738 assembly to fail. This directive is most useful inside conditional constructs |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
1739 to cause assembly to fail if some condition that is known bad happens. Everything |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
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|
1740 from the directive to the end of the line is considered the error message.</P |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
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1741 ></DD |
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parents:
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1742 ><DT |
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1743 >WARNING <CODE |
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parents:
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|
1744 CLASS="PARAMETER" |
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1745 >string</CODE |
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lost@l-w.ca
parents:
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|
1746 ></DT |
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lost@l-w.ca
parents:
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|
1747 ><DD |
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|
1748 ><P |
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parents:
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1749 >Causes a custom warning message to be printed at this line. This will not cause |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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1750 assembly to fail. This directive is most useful inside conditional constructs |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
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1751 or include files to alert the programmer to a deprecated feature being used |
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Added prebuilt manual to repository to avoid failures to include it during releases
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1752 or some other condition that may cause trouble later, but which may, in fact, |
83b7b4ce3bbd
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|
1753 not cause any trouble.</P |
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|
1754 ></DD |
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|
1755 ><DT |
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1756 >.MODULE <CODE |
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|
1757 CLASS="PARAMETER" |
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|
1758 >string</CODE |
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1759 ></DT |
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1760 ><DD |
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1761 ><P |
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1762 >This directive is ignored for most output targets. If the output target |
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|
1763 supports encoding a module name into it, <CODE |
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|
1764 CLASS="PARAMETER" |
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|
1765 >string</CODE |
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1766 > |
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1767 will be used as the module name.</P |
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|
1768 ><P |
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1769 >As of version 3.0, no supported output targets support this directive.</P |
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parents:
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1770 ></DD |
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|
1771 ></DL |
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|
1772 ></DIV |
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parents:
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|
1773 ></DIV |
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parents:
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|
1774 ></DIV |
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parents:
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|
1775 ><DIV |
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parents:
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|
1776 CLASS="SECTION" |
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parents:
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|
1777 ><HR><H2 |
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parents:
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|
1778 CLASS="SECTION" |
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|
1779 ><A |
394
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William Astle <lost@l-w.ca>
parents:
369
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|
1780 NAME="AEN551" |
153
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1781 >3.7. Macros</A |
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|
1782 ></H2 |
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|
1783 ><P |
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1784 >LWASM is a macro assembler. A macro is simply a name that stands in for a |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
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|
1785 series of instructions. Once a macro is defined, it is used like any other |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
1786 assembler directive. Defining a macro can be considered equivalent to adding |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
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|
1787 additional assembler directives.</P |
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parents:
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|
1788 ><P |
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1789 >Macros may accept parameters. These parameters are referenced within a |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1790 macro by the a backslash ("\") followed by a digit 1 through 9 for the first |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
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1791 through ninth parameters. They may also be referenced by enclosing the |
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Added prebuilt manual to repository to avoid failures to include it during releases
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1792 decimal parameter number in braces ("{num}"). The special expansion "\*" |
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Added prebuilt manual to repository to avoid failures to include it during releases
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1793 translates to the exact parameter string, including all parameters, passed |
83b7b4ce3bbd
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|
1794 to the macro. These parameter references are replaced with the verbatim text |
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diff
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|
1795 of the parameter passed to the macro. A reference to a non-existent |
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1796 parameter will be replaced by an empty string. Macro parameters are expanded |
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Added prebuilt manual to repository to avoid failures to include it during releases
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1797 everywhere on each source line. That means the parameter to a macro could be |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1798 used as a symbol or it could even appear in a comment or could cause an |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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1799 entire source line to be commented out when the macro is expanded. </P |
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|
1800 ><P |
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1801 >Parameters passed to a macro are separated by commas and the parameter list |
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Added prebuilt manual to repository to avoid failures to include it during releases
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1802 is terminated by any whitespace. This means that neither a comma nor whitespace |
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1803 may be included in a macro parameter.</P |
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|
1804 ><P |
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1805 >Macro expansion is done recursively. That is, within a macro, macros are |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1806 expanded. This can lead to infinite loops in macro expansion. If the assembler |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1807 hangs for a long time while assembling a file that uses macros, this may be |
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|
1808 the reason.</P |
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|
1809 ><P |
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1810 >Each macro expansion receives its own local symbol context which is not |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1811 inherited by any macros called by it nor is it inherited from the context |
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Added prebuilt manual to repository to avoid failures to include it during releases
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1812 the macro was instantiated in. That means it is possible to use local symbols |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1813 within macros without having them collide with symbols in other macros or |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1814 outside the macro itself. However, this also means that using a local symbol |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
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|
1815 as a parameter to a macro, while legal, will not do what it would seem to do |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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1816 as it will result in looking up the local symbol in the macro's symbol context |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1817 rather than the enclosing context where it came from, likely yielding either |
83b7b4ce3bbd
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parents:
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|
1818 an undefined symbol error or bizarre assembly results.</P |
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|
1819 ><P |
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1820 >Note that there is no way to define a macro as local to a symbol context. All |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
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|
1821 macros are part of the global macro namespace. However, macros have a separate |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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1822 namespace from symbols so it is possible to have a symbol with the same name |
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Added prebuilt manual to repository to avoid failures to include it during releases
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1823 as a macro.</P |
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1824 ><P |
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1825 >Macros are defined only during the first pass. Macro expansion also |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1826 only occurs during the first pass. On the second pass, the macro |
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Added prebuilt manual to repository to avoid failures to include it during releases
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|
1827 definition is simply ignored. Macros must be defined before they are used.</P |
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|
1828 ><P |
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1829 >The following directives are used when defining macros.</P |
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|
1830 ><P |
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|
1831 ></P |
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|
1832 ><DIV |
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|
1833 CLASS="VARIABLELIST" |
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|
1834 ><DL |
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|
1835 ><DT |
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|
1836 ><CODE |
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|
1837 CLASS="PARAMETER" |
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|
1838 >macroname</CODE |
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|
1839 > MACRO [NOEXPAND]</DT |
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|
1840 ><DD |
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|
1841 ><P |
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1842 >This directive is used to being the definition of a macro called |
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|
1843 <CODE |
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|
1844 CLASS="PARAMETER" |
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|
1845 >macroname</CODE |
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|
1846 >. If <CODE |
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|
1847 CLASS="PARAMETER" |
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|
1848 >macroname</CODE |
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|
1849 > already |
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|
1850 exists, it is considered an error. Attempting to define a macro within a |
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|
1851 macro is undefined. It may work and it may not so the behaviour should not |
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|
1852 be relied upon.</P |
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|
1853 ><P |
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|
1854 >If NOEXPAND is specified, the macro will not be expanded in a program |
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|
1855 listing. Instead, all bytes emitted by all instructions within the macro |
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|
1856 will appear to be emitted on the line where the macro is invoked, starting |
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|
1857 at the address of the line of the invokation. If the macro uses ORG or other |
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|
1858 directives that define symbols or change the assembly address, these things |
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|
1859 will also be hidden (except in the symbol table) and the output bytes will |
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|
1860 appear with incorrect address attribution. Thus, NOEXPAND should only be |
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|
1861 used for macros that do not mess with the assembly address or otherwise |
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|
1862 define symbols that should be visible.</P |
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1863 ></DD |
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1864 ><DT |
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1865 >ENDM</DT |
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1866 ><DD |
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1867 ><P |
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1868 >This directive indicates the end of the macro currently being defined. It |
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1869 causes the assembler to resume interpreting source lines as normal.</P |
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1870 ></DD |
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1871 ></DL |
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1872 ></DIV |
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1873 ></DIV |
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1874 ><DIV |
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1875 CLASS="SECTION" |
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1876 ><HR><H2 |
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1877 CLASS="SECTION" |
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1878 ><A |
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1879 NAME="AEN574" |
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1880 >3.8. Structures</A |
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1881 ></H2 |
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1882 ><P |
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1883 > Structures are used to group related data in a fixed structure. A structure |
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1884 consists a number of fields, defined in sequential order and which take up |
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1885 specified size. The assembler does not enforce any means of access within a |
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1886 structure; it assumes that whatever you are doing, you intended to do. |
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1887 There are two pseudo ops that are used for defining structures. </P |
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1888 ><P |
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1889 ></P |
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1890 ><DIV |
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1891 CLASS="VARIABLELIST" |
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1892 ><DL |
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1893 ><DT |
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1894 ><CODE |
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1895 CLASS="PARAMETER" |
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1896 >structname</CODE |
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1897 > STRUCT</DT |
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1898 ><DD |
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1899 ><P |
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1900 > This directive is used to begin the definition of a structure with name |
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1901 <CODE |
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1902 CLASS="PARAMETER" |
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1903 >structname</CODE |
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1904 >. Subsequent statements all form part of |
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1905 the structure definition until the end of the structure is declared. </P |
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1906 ></DD |
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1907 ><DT |
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1908 >ENDSTRUCT, ENDS</DT |
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1909 ><DD |
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1910 ><P |
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1911 >This directive ends the definition of the structure. ENDSTRUCT is the |
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1912 preferred form. Prior to version 3.0 of LWASM, ENDS was used to end a |
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1913 section instead of a structure.</P |
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1914 ></DD |
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1915 ></DL |
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1916 ></DIV |
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1917 ><P |
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1918 > Within a structure definition, only reservation pseudo ops are permitted. |
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1919 Anything else will cause an assembly error.</P |
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1920 ><P |
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1921 > Once a structure is defined, you can reserve an area of memory in the |
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1922 same structure by using the structure name as the opcode. Structures can |
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1923 also contain fields that are themselves structures. See the example |
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1924 below.</P |
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1925 ><PRE |
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1926 CLASS="PROGRAMLISTING" |
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1927 >tstruct2 STRUCT |
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1928 f1 rmb 1 |
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1929 f2 rmb 1 |
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1930 ENDSTRUCT |
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1931 |
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1932 tstruct STRUCT |
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1933 field1 rmb 2 |
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1934 field2 rmb 3 |
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1935 field3 tstruct2 |
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1936 ENDSTRUCT |
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1937 |
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1938 ORG $2000 |
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1939 var1 tstruct |
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1940 var2 tstruct2</PRE |
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1941 ><P |
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1942 >Fields are referenced using a dot (.) as a separator. To refer to the |
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1943 generic offset within a structure, use the structure name to the left of the |
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1944 dot. If referring to a field within an actual variable, use the variable's |
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1945 symbol name to the left of the dot.</P |
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1946 ><P |
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1947 >You can also refer to the actual size of a structure (or a variable |
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1948 declared as a structure) using the special symbol sizeof{structname} where |
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1949 structname will be the name of the structure or the name of the |
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1950 variable.</P |
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1951 ><P |
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1952 >Essentially, structures are a shortcut for defining a vast number of |
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1953 symbols. When a structure is defined, the assembler creates symbols for the |
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1954 various fields in the form structname.fieldname as well as the appropriate |
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1955 sizeof{structname} symbol. When a variable is declared as a structure, the |
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1956 assembler does the same thing using the name of the variable. You will see |
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1957 these symbols in the symbol table when the assembler is instructed to |
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1958 provide a listing. For instance, the above listing will create the |
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1959 following symbols (symbol values in parentheses): tstruct2.f1 (0), |
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1960 tstruct2.f2 (1), sizeof{tstruct2} (2), tstruct.field1 (0), tstruct.field2 |
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1961 (2), tstruct.field3 (5), tstruct.field3.f1 (5), tstruct.field3.f2 (6), |
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1962 sizeof{tstruct.field3} (2), sizeof{tstruct} (7), var1 {$2000}, var1.field1 |
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1963 {$2000}, var1.field2 {$2002}, var1.field3 {$2005}, var1.field3.f1 {$2005}, |
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1964 var1.field3.f2 {$2006}, sizeof(var1.field3} (2), sizeof{var1} (7), var2 |
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1965 ($2007), var2.f1 ($2007), var2.f2 ($2008), sizeof{var2} (2). </P |
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1966 ></DIV |
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1967 ><DIV |
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1968 CLASS="SECTION" |
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1969 ><HR><H2 |
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1970 CLASS="SECTION" |
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1971 ><A |
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1972 NAME="AEN595" |
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1973 >3.9. Object Files and Sections</A |
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1974 ></H2 |
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1975 ><P |
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1976 >The object file target is very useful for large project because it allows |
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1977 multiple files to be assembled independently and then linked into the final |
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1978 binary at a later time. It allows only the small portion of the project |
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1979 that was modified to be re-assembled rather than requiring the entire set |
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1980 of source code to be available to the assembler in a single assembly process. |
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1981 This can be particularly important if there are a large number of macros, |
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1982 symbol definitions, or other metadata that uses resources at assembly time. |
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1983 By far the largest benefit, however, is keeping the source files small enough |
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1984 for a mere mortal to find things in them.</P |
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1985 ><P |
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1986 >With multi-file projects, there needs to be a means of resolving references to |
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1987 symbols in other source files. These are known as external references. The |
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1988 addresses of these symbols cannot be known until the linker joins all the |
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1989 object files into a single binary. This means that the assembler must be |
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1990 able to output the object code without knowing the value of the symbol. This |
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1991 places some restrictions on the code generated by the assembler. For |
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1992 example, the assembler cannot generate direct page addressing for instructions |
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1993 that reference external symbols because the address of the symbol may not |
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1994 be in the direct page. Similarly, relative branches and PC relative addressing |
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1995 cannot be used in their eight bit forms. Everything that must be resolved |
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1996 by the linker must be assembled to use the largest address size possible to |
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1997 allow the linker to fill in the correct value at link time. Note that the |
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1998 same problem applies to absolute address references as well, even those in |
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1999 the same source file, because the address is not known until link time.</P |
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2000 ><P |
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2001 >It is often desired in multi-file projects to have code of various types grouped |
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2002 together in the final binary generated by the linker as well. The same applies |
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2003 to data. In order for the linker to do that, the bits that are to be grouped |
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2004 must be tagged in some manner. This is where the concept of sections comes in. |
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2005 Each chunk of code or data is part of a section in the object file. Then, |
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2006 when the linker reads all the object files, it coalesces all sections of the |
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2007 same name into a single section and then considers it as a unit.</P |
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2008 ><P |
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2009 >The existence of sections, however, raises a problem for symbols even |
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2010 within the same source file. Thus, the assembler must treat symbols from |
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2011 different sections within the same source file in the same manner as external |
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2012 symbols. That is, it must leave them for the linker to resolve at link time, |
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2013 with all the limitations that entails.</P |
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2014 ><P |
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2015 >In the object file target mode, LWASM requires all source lines that |
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2016 cause bytes to be output to be inside a section. Any directives that do |
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2017 not cause any bytes to be output can appear outside of a section. This includes |
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2018 such things as EQU or RMB. Even ORG can appear outside a section. ORG, however, |
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2019 makes no sense within a section because it is the linker that determines |
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2020 the starting address of the section's code, not the assembler.</P |
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2021 ><P |
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2022 >All symbols defined globally in the assembly process are local to the |
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2023 source file and cannot be exported. All symbols defined within a section are |
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2024 considered local to the source file unless otherwise explicitly exported. |
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2025 Symbols referenced from external source files must be declared external, |
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2026 either explicitly or by asking the assembler to assume that all undefined |
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2027 symbols are external.</P |
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2028 ><P |
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2029 >It is often handy to define a number of memory addresses that will be |
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2030 used for data at run-time but which need not be included in the binary file. |
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2031 These memory addresses are not initialized until run-time, either by the |
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2032 program itself or by the program loader, depending on the operating environment. |
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2033 Such sections are often known as BSS sections. LWASM supports generating |
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2034 sections with a BSS attribute set which causes the section definition including |
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2035 symbols exported from that section and those symbols required to resolve |
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2036 references from the local file, but with no actual code in the object file. |
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2037 It is illegal for any source lines within a BSS flagged section to cause any |
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2038 bytes to be output.</P |
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2039 ><P |
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2040 >The following directives apply to section handling.</P |
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2041 ><P |
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2042 ></P |
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2043 ><DIV |
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2044 CLASS="VARIABLELIST" |
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2045 ><DL |
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2046 ><DT |
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2047 >SECTION <CODE |
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2048 CLASS="PARAMETER" |
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2049 >name[,flags]</CODE |
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2050 >, SECT <CODE |
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2051 CLASS="PARAMETER" |
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2052 >name[,flags]</CODE |
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2053 >, .AREA <CODE |
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2054 CLASS="PARAMETER" |
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2055 >name[,flags]</CODE |
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2056 ></DT |
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2057 ><DD |
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2058 ><P |
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2059 >Instructs the assembler that the code following this directive is to be |
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2060 considered part of the section <CODE |
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2061 CLASS="PARAMETER" |
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2062 >name</CODE |
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2063 >. A section name |
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2064 may appear multiple times in which case it is as though all the code from |
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2065 all the instances of that section appeared adjacent within the source file. |
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2066 However, <CODE |
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2067 CLASS="PARAMETER" |
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2068 >flags</CODE |
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2069 > may only be specified on the first |
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2070 instance of the section.</P |
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2071 ><P |
168 | 2072 ><CODE |
153
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2073 CLASS="PARAMETER" |
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2074 >flags</CODE |
168 | 2075 > is a comma separated list of flags. If a |
2076 flag is "bss", the section will be treated as a BSS section and no | |
2077 statements that generate output are permitted.</P | |
2078 ><P | |
2079 >If the flag is "constant", | |
2080 the same restrictions apply as for BSS sections. Additionally, all symbols | |
2081 defined in a constant section define absolute values and will not be | |
2082 adjusted by the linker at link time. Constant sections cannot define | |
2083 complex expressions for symbols; the value must be fully defined at assembly | |
2084 time. Additionally, multiple instances of a constant section do not | |
2085 coalesce into a single addressing unit; each instance starts again at offset | |
2086 0.</P | |
153
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2087 ><P |
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2088 >If the section name is "bss" or ".bss" in any combination of upper and |
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2089 lower case, the section is assumed to be a BSS section. In that case, |
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2090 the flag <CODE |
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2091 CLASS="PARAMETER" |
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2092 >!bss</CODE |
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2093 > can be used to override this assumption.</P |
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2094 ><P |
168 | 2095 > If the section name is "_constants" or "_constant", in any |
2096 combination of upper and lower case, the section is assumed to be a constant | |
2097 section. This assumption can be overridden with the "!constant" | |
2098 flag.</P | |
2099 ><P | |
153
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2100 >If assembly is already happening within a section, the section is implicitly |
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2101 ended and the new section started. This is not considered an error although |
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2102 it is recommended that all sections be explicitly closed.</P |
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2103 ></DD |
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2104 ><DT |
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2105 >ENDSECTION, ENDSECT</DT |
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2106 ><DD |
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2107 ><P |
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2108 >This directive ends the current section. This puts assembly outside of any |
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2109 sections until the next SECTION directive. ENDSECTION is the preferred form. |
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2110 Prior to version 3.0 of LWASM, ENDS could also be used to end a section but |
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2111 as of version 3.0, it is now an alias for ENDSTRUCT instead.</P |
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2112 ></DD |
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2113 ><DT |
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2114 ><CODE |
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2115 CLASS="PARAMETER" |
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2116 >sym</CODE |
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2117 > EXTERN, <CODE |
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2118 CLASS="PARAMETER" |
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2119 >sym</CODE |
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2120 > EXTERNAL, <CODE |
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2121 CLASS="PARAMETER" |
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2122 >sym</CODE |
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2123 > IMPORT</DT |
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2124 ><DD |
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2125 ><P |
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2126 >This directive defines <CODE |
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2127 CLASS="PARAMETER" |
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2128 >sym</CODE |
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2129 > as an external symbol. |
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2130 This directive may occur at any point in the source code. EXTERN definitions |
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2131 are resolved on the first pass so an EXTERN definition anywhere in the |
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2132 source file is valid for the entire file. The use of this directive is |
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2133 optional when the assembler is instructed to assume that all undefined |
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2134 symbols are external. In fact, in that mode, if the symbol is referenced |
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2135 before the EXTERN directive, an error will occur.</P |
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2136 ></DD |
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2137 ><DT |
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2138 ><CODE |
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2139 CLASS="PARAMETER" |
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2140 >sym</CODE |
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|
2141 > EXPORT, <CODE |
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2142 CLASS="PARAMETER" |
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|
2143 >sym</CODE |
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2144 > .GLOBL, EXPORT <CODE |
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2145 CLASS="PARAMETER" |
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2146 >sym</CODE |
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2147 >, .GLOBL <CODE |
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2148 CLASS="PARAMETER" |
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2149 >sym</CODE |
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2150 ></DT |
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2151 ><DD |
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2152 ><P |
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2153 >This directive defines <CODE |
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2154 CLASS="PARAMETER" |
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2155 >sym</CODE |
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2156 > as an exported symbol. |
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2157 This directive may occur at any point in the source code, even before the |
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2158 definition of the exported symbol.</P |
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2159 ><P |
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2160 >Note that <CODE |
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2161 CLASS="PARAMETER" |
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2162 >sym</CODE |
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|
2163 > may appear as the operand or as the |
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|
2164 statement's symbol. If there is a symbol on the statement, that will |
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2165 take precedence over any operand that is present.</P |
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2166 ></DD |
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2167 ><DT |
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2168 ><CODE |
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|
2169 CLASS="PARAMETER" |
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|
2170 >sym</CODE |
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|
2171 > EXTDEP</DT |
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2172 ><DD |
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2173 ><P |
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2174 >This directive forces an external dependency on |
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|
2175 <CODE |
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|
2176 CLASS="PARAMETER" |
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|
2177 >sym</CODE |
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|
2178 >, even if it is never referenced anywhere else in |
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|
2179 this file.</P |
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|
2180 ></DD |
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|
2181 ></DL |
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|
2182 ></DIV |
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|
2183 ></DIV |
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|
2184 ><DIV |
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|
2185 CLASS="SECTION" |
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|
2186 ><HR><H2 |
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2187 CLASS="SECTION" |
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2188 ><A |
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2189 NAME="AEN659" |
153
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2190 >3.10. Assembler Modes and Pragmas</A |
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2191 ></H2 |
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|
2192 ><P |
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2193 >There are a number of options that affect the way assembly is performed. |
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|
2194 Some of these options can only be specified on the command line because |
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|
2195 they determine something absolute about the assembly process. These include |
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|
2196 such things as the output target. Other things may be switchable during |
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|
2197 the assembly process. These are known as pragmas and are, by definition, |
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2198 not portable between assemblers.</P |
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2199 ><P |
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2200 >LWASM supports a number of pragmas that affect code generation or |
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|
2201 otherwise affect the behaviour of the assembler. These may be specified by |
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2202 way of a command line option or by assembler directives. The directives |
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2203 are as follows.</P |
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2204 ><P |
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2205 ></P |
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2206 ><DIV |
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|
2207 CLASS="VARIABLELIST" |
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|
2208 ><DL |
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|
2209 ><DT |
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|
2210 >PRAGMA <CODE |
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|
2211 CLASS="PARAMETER" |
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|
2212 >pragma[,...]</CODE |
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|
2213 ></DT |
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|
2214 ><DD |
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|
2215 ><P |
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2216 >Specifies that the assembler should bring into force all <CODE |
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|
2217 CLASS="PARAMETER" |
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|
2218 >pragma</CODE |
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|
2219 >s |
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|
2220 specified. Any unrecognized pragma will cause an assembly error. The new |
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|
2221 pragmas will take effect immediately. This directive should be used when |
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2222 the program will assemble incorrectly if the pragma is ignored or not supported.</P |
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|
2223 ></DD |
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|
2224 ><DT |
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|
2225 >*PRAGMA <CODE |
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|
2226 CLASS="PARAMETER" |
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|
2227 >pragma[,...]</CODE |
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|
2228 ></DT |
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|
2229 ><DD |
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|
2230 ><P |
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|
2231 >This is identical to the PRAGMA directive except no error will occur with |
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|
2232 unrecognized or unsupported pragmas. This directive, by virtue of starting |
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|
2233 with a comment character, will also be ignored by assemblers that do not |
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|
2234 support this directive. Use this variation if the pragma is not required |
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|
2235 for correct functioning of the code.</P |
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|
2236 ></DD |
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2237 ><DT |
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|
2238 >*PRAGMAPUSH <CODE |
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|
2239 CLASS="PARAMETER" |
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|
2240 >pragma[,...]</CODE |
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|
2241 ></DT |
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|
2242 ><DD |
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2243 ><P |
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2244 >This directive saves the current state of the specified pragma(s) for later retrieval. See discussion below for more information.</P |
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2245 ><P |
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2246 >This directive will not throw any errors for any reason.</P |
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|
2247 ></DD |
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2248 ><DT |
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2249 >*PRAGMAPOP <CODE |
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|
2250 CLASS="PARAMETER" |
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|
2251 >pragma[,...]</CODE |
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|
2252 ></DT |
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|
2253 ><DD |
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2254 ><P |
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2255 >This directive restores the previously saved state of the specified pragma(s). See discussion below for more information.</P |
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|
2256 ><P |
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2257 >This directive will not throw any errors for any reason.</P |
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|
2258 ></DD |
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|
2259 ></DL |
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|
2260 ></DIV |
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|
2261 ><P |
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|
2262 >Each pragma supported has a positive version and a negative version. |
153
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2263 The positive version enables the pragma while the negative version disables |
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diff
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|
2264 it. The negatitve version is simply the positive version with "no" prefixed |
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2265 to it. For instance, "pragma" vs. "nopragma". When only one version is |
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2266 listed below, its opposite can be obtained by prepending "no" if it is not |
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2267 present or removing "no" from the beginning if it is present.</P |
153
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|
2268 ><P |
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parents:
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|
2269 >Pragmas are not case sensitive.</P |
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parents:
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changeset
|
2270 ><P |
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parents:
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|
2271 ></P |
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parents:
diff
changeset
|
2272 ><DIV |
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parents:
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|
2273 CLASS="VARIABLELIST" |
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parents:
diff
changeset
|
2274 ><DL |
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|
2275 ><DT |
333
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2276 >6800compat</DT |
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2277 ><DD |
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2278 ><P |
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2279 >When in force, this pragma enables recognition of various |
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|
2280 compatibility instructions useful when assembling 6800 code. These |
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diff
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|
2281 compatibility instructions are assembled into equivalent 6809 instructions. |
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diff
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|
2282 This mode also includes several analogous instructions which are not |
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|
2283 strictly 6800 instructions but allow the similar style to be applied to 6809 |
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|
2284 specific features.</P |
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|
2285 ><P |
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2286 >Technically, a compliant 6809 assembler must recognize these |
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|
2287 instructions by default since Motorola advertised the 6809 as being source |
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|
2288 compatible with the 6800. However, most source code does not require this |
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|
2289 compatibility and LWASM itself did not support these instructions prior to |
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|
2290 version 4.11 so this mode is disabled by default.</P |
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|
2291 ></DD |
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|
2292 ><DT |
394
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|
2293 >6809</DT |
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|
2294 ><DD |
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2295 ><P |
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2296 >This pragma allows you to mark a section of code as 6809-only. In ths mode, |
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|
2297 the assembler will throw an error if any 6309 instructions are used.</P |
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|
2298 ></DD |
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|
2299 ><DT |
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|
2300 >6309</DT |
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|
2301 ><DD |
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|
2302 ><P |
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|
2303 >This pragma enables the use of 6309 instructions and disables any 6809 specific |
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|
2304 instructions. It also changes the cycle count listing output (if selected) |
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|
2305 to display 6309 timings.</P |
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|
2306 ></DD |
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|
2307 ><DT |
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|
2308 >6809conv, 6309conv</DT |
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|
2309 ><DD |
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|
2310 ><P |
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|
2311 >These pragmas enable convenience instructions extending the 6809 and 6309 |
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|
2312 instruction sets respectively. For more information, see |
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|
2313 <A |
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|
2314 HREF="#CONVINST" |
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2315 >Section 3.11</A |
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|
2316 >.</P |
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|
2317 ></DD |
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|
2318 ><DT |
153
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|
2319 >index0tonone</DT |
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parents:
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|
2320 ><DD |
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|
2321 ><P |
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|
2322 >When in force, this pragma enables an optimization affecting indexed addressing |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2323 modes. When the offset expression in an indexed mode evaluates to zero but is |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2324 not explicity written as 0, this will replace the operand with the equivalent |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2325 no offset mode, thus creating slightly faster code. Because of the advantages |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2326 of this optimization, it is enabled by default.</P |
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parents:
diff
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|
2327 ></DD |
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parents:
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|
2328 ><DT |
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|
2329 >cescapes</DT |
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parents:
diff
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|
2330 ><DD |
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parents:
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|
2331 ><P |
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parents:
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|
2332 >This pragma will cause strings in the FCC, FCS, and FCN pseudo operations to |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2333 have C-style escape sequences interpreted. The one departure from the official |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2334 spec is that unrecognized escape sequences will return either the character |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2335 immediately following the backslash or some undefined value. Do not rely |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2336 on the behaviour of undefined escape sequences.</P |
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parents:
diff
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|
2337 ></DD |
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parents:
diff
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|
2338 ><DT |
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parents:
diff
changeset
|
2339 >importundefexport</DT |
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parents:
diff
changeset
|
2340 ><DD |
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parents:
diff
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|
2341 ><P |
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parents:
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|
2342 >This pragma is only valid for targets that support external references. When |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2343 in force, it will cause the EXPORT directive to act as IMPORT if the symbol |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2344 to be exported is not defined. This is provided for compatibility with the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2345 output of gcc6809 and should not be used in hand written code. Because of |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2346 the confusion this pragma can cause, it is disabled by default.</P |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2347 ></DD |
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parents:
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|
2348 ><DT |
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parents:
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|
2349 >undefextern</DT |
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parents:
diff
changeset
|
2350 ><DD |
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parents:
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|
2351 ><P |
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parents:
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|
2352 >This pragma is only valid for targets that support external references. When in |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2353 force, if the assembler sees an undefined symbol on the second pass, it will |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
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|
2354 automatically define it as an external symbol. This automatic definition will |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
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|
2355 apply for the remainder of the assembly process, even if the pragma is |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2356 subsequently turned off. Because this behaviour would be potentially surprising, |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
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|
2357 this pragma defaults to off.</P |
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parents:
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|
2358 ><P |
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|
2359 >The primary use for this pragma is for projects that share a large number of |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
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|
2360 symbols between source files. In such cases, it is impractical to enumerate |
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parents:
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|
2361 all the external references in every source file. This allows the assembler |
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parents:
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|
2362 and linker to do the heavy lifting while not preventing a particular source |
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parents:
diff
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|
2363 module from defining a local symbol of the same name as an external symbol |
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|
2364 if it does not need the external symbol. (This pragma will not cause an |
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parents:
diff
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|
2365 automatic external definition if there is already a locally defined symbol.)</P |
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parents:
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|
2366 ><P |
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parents:
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|
2367 >This pragma will often be specified on the command line for large projects. |
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|
2368 However, depending on the specific dynamics of the project, it may be sufficient |
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|
2369 for one or two files to use this pragma internally.</P |
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parents:
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|
2370 ></DD |
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|
2371 ><DT |
253 | 2372 >export</DT |
2373 ><DD | |
2374 ><P | |
2375 >This pragma causes all symbols to be added to the export list | |
2376 automatically. This is useful when a large number of symbols need to be | |
2377 exported but you do not wish to include an EXPORT directive for all of them. | |
2378 This is often useful on the command line but might be useful even inline | |
2379 with the PRAGMA directive if a large number of symbols in a row are to be | |
2380 exported.</P | |
2381 ></DD | |
2382 ><DT | |
153
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|
2383 >dollarlocal</DT |
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|
2384 ><DD |
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parents:
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|
2385 ><P |
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|
2386 >When set, a "$" in a symbol makes it local. When not set, "$" does not |
83b7b4ce3bbd
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|
2387 cause a symbol to be local. It is set by default except when using the OS9 |
83b7b4ce3bbd
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parents:
diff
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|
2388 target.</P |
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|
2389 ></DD |
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|
2390 ><DT |
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|
2391 >dollarnotlocal</DT |
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|
2392 ><DD |
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|
2393 ><P |
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|
2394 > This is the same as the "dollarlocal" pragma except its sense is |
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parents:
diff
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|
2395 reversed. That is, "dollarlocal" and "nodollarnotlocal" are equivalent and |
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parents:
diff
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|
2396 "nodollarlocal" and "dollarnotlocal" are equivalent. </P |
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parents:
diff
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|
2397 ></DD |
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parents:
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|
2398 ><DT |
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|
2399 >pcaspcr</DT |
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|
2400 ><DD |
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|
2401 ><P |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
2402 > Normally, LWASM makes a distinction between PC and PCR in program |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2403 counter relative addressing. In particular, the use of PC means an absolute |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2404 offset from PC while PCR causes the assembler to calculate the offset to the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2405 specified operand and use that as the offset from PC. By setting this |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2406 pragma, you can have PC treated the same as PCR. </P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2407 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2408 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2409 >shadow</DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2410 ><DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2411 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2412 >When this pragma is in effect, it becomes possible to define a macro |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2413 that matches an internal operation code. Thus, it makes it possible to |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2414 redefine either CPU instructions or pseudo operations. Because this feature |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2415 is of dubious utility, it is disabled by default.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2416 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2417 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2418 >nolist</DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2419 ><DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2420 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2421 >Lines where this pragma is in effect will not appear in the assembly |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2422 listing. Also, any symbols defined under this pragma will not show up in |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2423 the symbol list. This is most useful in include files to avoid spamming the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2424 assembly listing with dozens, hundreds, or thousands of irrelevant |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2425 symbols.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2426 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2427 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2428 >autobranchlength</DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2429 ><DD |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2430 ><P |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2431 >One of the perennial annoyances for 6809 programmers is that the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2432 mneumonics for the short and long branch instructions are different (bxx vs. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2433 lbxx), which is at odds with the rest of the instruction set. This pragma |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2434 is a solution to those annoying byte overflow errors that short branch |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2435 instructions tend to aquire.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2436 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2437 >When this pragma is in effect, which is not the default, whenever any |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2438 relative branch instruction is used, its size will be automatically |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2439 determined based on the actual distance to the destination. In other words, |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2440 one can write code with long or short branches everywhere and the assembler |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2441 will choose a size for the branch.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2442 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2443 >Also, while this pragma is in effect, the > and < symbols can be used |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2444 to force the branch size, analogous to their use for other instructions with |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2445 < forcing 8 bit offsets and > forcing 16 bit offets.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2446 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2447 >Because this pragma leads to source that is incompatible with other |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2448 assemblers, it is strongly recommended that it be invoked using the PRAGMA |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2449 directive within the source code rather than on the command line or via the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2450 *PRAGMA directive. This way, an error will be raised if someone tries to |
231
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2451 assemble the code under a different assembler.</P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2452 ></DD |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2453 ><DT |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2454 >nosymbolcase, symbolnocase</DT |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2455 ><DD |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2456 ><P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2457 >Any symbol defined while this pragma is in force will be treated as |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2458 case insensitive, regardless whether the pragma is in force when the symbol |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2459 is referenced.</P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2460 ><P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2461 >It is important to note that this pragma will not work as expected in |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2462 all cases when using the object file assembly target. It is intended for |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2463 use only when the assembler will be producing the final binary.</P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2464 ></DD |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2465 ><DT |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2466 >condundefzero</DT |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2467 ><DD |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2468 ><P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2469 >This pragma will cause the assembler to change the way it handles |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2470 symbols in conditional expressions. Ordinarily, any symbol that is not |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2471 defined prior to the conditional will throw an undefined symbol error. With |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2472 this pragma in effect, symbols that are not yet defined at the point the |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2473 conditional is encountered will be treated as zero.</P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2474 ><P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2475 >This is not the default because it encourages poor code design. One |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2476 should use the "IFDEF" or "IFNDEF" conditionals to test for the presence of |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2477 a symbol.</P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2478 ><P |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2479 >It is important to note that if a symbol is defined but it does not |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2480 yet evaluate to a constant value at the point where the conditional appears, |
2cc599f1bebf
Added --define to lwasm documentation.
William Astle <lost@l-w.ca>
parents:
168
diff
changeset
|
2481 the assembler will still complain about a non constant condition.</P |
153
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2482 ></DD |
347
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2483 ><DT |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2484 >forwardrefmax</DT |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2485 ><DD |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2486 ><P |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2487 >This pragma will disable forward reference optimization completely. |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2488 Ordinarily, LWASM will attempt to select the shortest possible addressing |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2489 mode for forward references. However, in many source files, especially |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2490 those not using the PCR relative addressing modes, this optimization is |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2491 pointless since the assembler will almost certainly settle on a 16 bit |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2492 offset or address. If all variables in the direct page are defined before |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2493 the main body of the code, the benefit of forward reference optimization |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2494 almost certainly vanishes completely. However, the cost of doing that |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2495 optimization remains and can result in a very long assembly time.</P |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2496 ><P |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2497 >Enabling this pragma will cause all forward references to use the |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2498 maximum offset or address size, much the same has EDTASM and other pure |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2499 two pass assemblers do. The side effect is that all line lengths and |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2500 symbol values are fully resolved after the initial parsing pass and the |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2501 amount of work to resolve everything becomes almost nil.</P |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2502 ><P |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2503 >While this pragma can be applied selectively to sections of source |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
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345
diff
changeset
|
2504 code (use *PRAGMA if doing so and compatibility with other assemblers |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2505 is desired), it is likely more useful when provided as a command line |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2506 pragma.</P |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2507 ><P |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2508 >It should be noted that the presence or absence of this pragma |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2509 will not change the correctness of the generated code unless cycle counts |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2510 or byte counts are critical (which they usually are not). It also will |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2511 not override the operand size override prefixes (< and >). It only |
330a66a0f45a
Document the forwardrefmax pragma
William Astle <lost@l-w.ca>
parents:
345
diff
changeset
|
2512 applies when the assembler is left to guess what the operand size is.</P |
330a66a0f45a
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William Astle <lost@l-w.ca>
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345
diff
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|
2513 ></DD |
394
fc166b3bbae3
Update manual for recent additions.
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diff
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|
2514 ><DT |
455 | 2515 >operandsizewarning</DT |
2516 ><DD | |
2517 ><P | |
2518 >Enabling this pragma will cause LWASM to show a warning when it | |
2519 detects that a smaller addressing mode could be used for an instruction. | |
2520 This is particularly useful for finding places where long branches are used | |
2521 where short branches could be used instead. It will also show the warnings | |
2522 for indexing offsets (regardless of whether the operand size is | |
2523 forced).</P | |
2524 ><P | |
2525 >As of LWASM 4.16, no other checks are performed.</P | |
2526 ></DD | |
2527 ><DT | |
394
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|
2528 >qrts</DT |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
2529 ><DD |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
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369
diff
changeset
|
2530 ><P |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
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|
2531 > Enables the use of the ?RTS branch target. ?RTS is implemented to maintain |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
2532 compatibility with the MACRO-80c assembler. It works by searching backward |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
2533 in the code for an RTS instruction. If none is found, it inverts the branch |
fc166b3bbae3
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William Astle <lost@l-w.ca>
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369
diff
changeset
|
2534 logic and inserts an RTS following the branch instruction. Below you can |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
2535 see how a BMI (2B xx) has been assembled as a BPL *+1 (2A 01) to skip over an |
fc166b3bbae3
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William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
2536 inserted RTS (39).</P |
fc166b3bbae3
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William Astle <lost@l-w.ca>
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2537 ><PRE |
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2538 CLASS="PROGRAMLISTING" |
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2539 >1D1E 7D1D1D TST WHICH1 |
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2540 1D21 2A0139 BMI ?RTS |
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2541 1D24 BD1D65 JSR INV</PRE |
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2542 ></DD |
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2543 ><DT |
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2544 >m80ext</DT |
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2545 ><DD |
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2546 ><P |
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2547 > This pragma (along with pragma qrts) enables some uncommon behaviors to |
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2548 accomodate The Micro Works MACRO-80c assembler from 1982. This assembler |
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2549 was used by a number of notable TRS-80 Color Computer applications and the |
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2550 goal of this pragma is to allow them to build identical binaries from |
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2551 unmodified, vintage source code.</P |
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2552 ><P |
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2553 > In m80ext mode, the handling of the "END" pseudo-op changes when used inside |
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2554 an include file. Instead of terminating all assembly, it merely stops |
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2555 processing of the current include file (this behavior matches the original |
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2556 Motorola 6809 assembler). In addition, loading an ASCII value with a single |
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2557 quote (e.g., LDA #'N) is extended to 16-bit registers (e.g., LDD #'NO). |
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2558 LWASM normally supports this via double quote and that is the proper use in |
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2559 modern code. Finally, the FCC pseudo-op is extended to handle FCB-like |
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2560 behavior after the closing delimiter:</P |
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2561 ><PRE |
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2562 CLASS="PROGRAMLISTING" |
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2563 > FCC "Greetings from 1982",13,0</PRE |
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2564 ></DD |
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2565 ><DT |
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2566 >testmode</DT |
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2567 ><DD |
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2568 ><P |
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2569 > This pragma is intended for internal testing purposes. In testmode, the |
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2570 assembler searches for a specially-formatted comment starting with a |
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2571 semicolon followed by a period. Immediately afterward are a list of hex |
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2572 bytes that the assembler is expected to generate. Likewise, if the |
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2573 assembler is expected to throw an error or warning on a given line, you can |
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2574 check by specifying "E:" followed by the error number. In this case the |
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2575 error is ignored and the assembler continues ignoring the line in question. </P |
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2576 ><PRE |
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2577 CLASS="PROGRAMLISTING" |
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2578 >1D1E 7D1D1D TST WHICH1 ;.7d1d1d |
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|
2579 1D21 2A0139 BMI ?RTS ;.2a0139 |
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2580 1D24 1D24 FDB * ;.1d24 |
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2581 1D26 xyz INV ;.E:32 (Error 32 is "Bad opcode")</PRE |
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2582 ></DD |
153
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2583 ></DL |
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2584 ></DIV |
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2585 ><P |
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2586 >As a convenience, each input file has a pragma state stack. This |
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2587 allows, through the use of *PRAGMAPUSH and *PRAGMAPOP, a file to change a |
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2588 pragma state and then restore it to the precise state it had previously. |
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2589 If, at the end of an input file, all pragma states have not been popped, |
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2590 they will be removed from the stack. Thus, it is critical to employ |
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2591 *PRAGMAPOP correctly. Because each input file has its own pragma stack, |
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2592 using *PRAGMAPUSH in one file and *PRAGMAPOP in another file will not |
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2593 work.</P |
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2594 ><P |
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2595 >Pragma stacks are more useful in include files, in particular in |
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2596 conjunction with the nolist pragma. One can push the state of the nolist |
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2597 pragma, engage the nolist pragma, and then pop the state of the nolist |
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2598 pragma at the end of the include file. This will cause the entire include |
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2599 file to operate under the nolist pragma. However, if the file is included |
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2600 while nolist is already engaged, it will not undo that state.</P |
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2601 ></DIV |
394
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2602 ><DIV |
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2603 CLASS="SECTION" |
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2604 ><HR><H2 |
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2605 CLASS="SECTION" |
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2606 ><A |
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2607 NAME="CONVINST" |
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2608 >3.11. Convenience Instructions</A |
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2609 ></H2 |
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2610 ><P |
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2611 > Similar to the 6800 compatibility instructions (pragma 6800compat) these |
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2612 pragma 6809conv and pragma 6309conv enable convenience extensions to the |
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2613 6809 and 6309 instruction set. Originally intended for compatibility with |
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2614 the MACRO-80c assembler, these have proven useful in large codebases that |
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2615 target both the 6809 and the 6309.</P |
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|
2616 ><P |
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2617 > The 6809 extensions are straightforward with the exception of "TSTD" which |
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2618 assembles as "STD -2,S". A benefit of using these is they will "just work" |
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2619 and take on their 6309 equivalent when you enable 6309 assembly mode. |
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2620 Supported instructions: ASRD, CLRD, COMD, LSLD, LSRD, NEGD, TSTD.</P |
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2621 ><P |
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2622 > 6309 extensions are based on common patterns described by Chris Burke and |
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2623 Darren Atkinson in their 6309 documentation and include the following |
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2624 instructions: ASRQ, CLRQ, COMQ, LSLE, LSLF, LSLQ, LSRQ, NEGE, |
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2625 NEGF, NEGW, NEGQ, TSTQ.</P |
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2626 ></DIV |
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2627 ><DIV |
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2628 CLASS="SECTION" |
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2629 ><HR><H2 |
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2630 CLASS="SECTION" |
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2631 ><A |
455 | 2632 NAME="AEN805" |
394
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|
2633 >3.12. Cycle Counts</A |
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2634 ></H2 |
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2635 ><P |
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2636 > The following options for displaying cycle counts in listings are provided. |
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2637 These options are enabled from pragmas on the command line or in the |
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2638 assembly files themselves. For compatibility with other assemblers you can |
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2639 use the "OPT" keyword in addition to "PRAGMA."</P |
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2640 ><PRE |
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2641 CLASS="PROGRAMLISTING" |
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2642 >opt c - enable cycle counts: [8] |
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2643 opt cd - enable detailed cycle counts breaking down addressing modes: [5+3] |
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2644 opt ct - show a running subtotal of cycles |
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2645 opt cc - clear the running subtotal</PRE |
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2646 ><P |
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2647 > The assembler supports both 6809 as well as native-mode 6309 cycle counts. |
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2648 In 6309 mode the counts are displayed in parenthesis instead of brackets. |
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2649 In addition, some operations have a variable cycle count. In this case a |
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2650 "+?" is displayed to alert the reader. Sample output is shown below.</P |
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|
2651 ><PRE |
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2652 CLASS="PROGRAMLISTING" |
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2653 >266f 7d25e2 (window.asm):00313 [7] 7 move tst putflg |
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2654 2672 2602 (window.asm):00314 [5] 12 bne a@ |
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2655 2674 1e13 (window.asm):00315 [8] 20 exg x,u |
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2656 2676 0dd6 (window.asm):00316 [6] 26 a@ tst is6309 |
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2657 2678 2618 (window.asm):00317 [5] 31 bne exit@ |
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2658 (window.asm):00318 opt 6309 |
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2659 267a 10860085 (window.asm):00319 (4) 35 b@ ldw #133 |
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2660 267e 113813 (window.asm):00320 (6+?) 41 tfm x+,u+ |
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2661 2681 30881b (window.asm):00321 (4+1) 46 leax 27,x |
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|
2662 2684 33c81b (window.asm):00322 (4+1) 51 leau 27,u |
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|
2663 2687 4a (window.asm):00323 (1) 52 deca |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
2664 2688 26f0 (window.asm):00324 (5) 57 bne b@</PRE |
fc166b3bbae3
Update manual for recent additions.
William Astle <lost@l-w.ca>
parents:
369
diff
changeset
|
2665 ></DIV |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2666 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2667 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2668 CLASS="CHAPTER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2669 ><HR><H1 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2670 ><A |
455 | 2671 NAME="AEN811" |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2672 ></A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2673 >Chapter 4. LWLINK</H1 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2674 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2675 >The LWTOOLS linker is called LWLINK. This chapter documents the various features |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2676 of the linker.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2677 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2678 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2679 ><HR><H2 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2680 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2681 ><A |
455 | 2682 NAME="AEN814" |
153
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2683 >4.1. Command Line Options</A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2684 ></H2 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2685 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2686 >The binary for LWLINK is called "lwlink". Note that the binary is in lower |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2687 case. lwlink takes the following command line arguments.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2688 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2689 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2690 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2691 CLASS="VARIABLELIST" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2692 ><DL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2693 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2694 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2695 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2696 >--decb</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2697 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2698 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2699 >-b</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2700 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2701 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2702 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2703 >Selects the DECB output format target. This is equivalent to <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2704 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2705 >--format=decb</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2706 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2707 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2708 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2709 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2710 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2711 >--output=FILE</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2712 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2713 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2714 >-o FILE</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2715 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2716 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2717 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2718 >This option specifies the name of the output file. If not specified, the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2719 default is <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2720 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2721 >a.out</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2722 >.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2723 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2724 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2725 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2726 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2727 >--format=TYPE</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2728 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2729 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2730 >-f TYPE</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2731 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2732 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2733 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2734 >This option specifies the output format. Valid values are <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2735 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2736 >decb</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2737 > |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2738 and <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2739 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2740 >raw</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2741 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2742 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2743 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2744 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2745 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2746 >--raw</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2747 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2748 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2749 >-r</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2750 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2751 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2752 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2753 >This option specifies the raw output format. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2754 It is equivalent to <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2755 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2756 >--format=raw</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2757 > |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2758 and <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2759 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2760 >-f raw</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2761 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2762 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2763 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2764 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2765 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2766 >--script=FILE</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2767 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2768 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2769 >-s</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2770 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2771 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2772 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2773 >This option allows specifying a linking script to override the linker's |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2774 built in defaults.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2775 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2776 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2777 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2778 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2779 >--section-base=SECT=BASE</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2780 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2781 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2782 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2783 >Cause section SECT to load at base address BASE. This will be prepended |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2784 to the built-in link script. It is ignored if a link script is provided.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2785 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2786 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2787 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2788 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2789 >--map=FILE</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2790 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2791 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2792 >-m FILE</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2793 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2794 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2795 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2796 >This will output a description of the link result to FILE.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2797 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2798 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2799 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2800 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2801 >--library=LIBSPEC</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2802 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2803 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2804 >-l LIBSPEC</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2805 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2806 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2807 ><P |
451 | 2808 >Load a library using the library search path. If LIBSPEC is prefixed with a |
2809 colon (":"), then LIBSPEC is the precise filename to be searched for in the | |
2810 library path. Otherwise, LIBSPEC will have "lib" prepended and ".a" appended.</P | |
153
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2811 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2812 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2813 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2814 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2815 >--library-path=DIR</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2816 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2817 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2818 >-L DIR</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2819 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2820 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2821 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2822 >Add DIR to the library search path.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2823 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2824 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2825 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2826 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2827 >--debug</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2828 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2829 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2830 >-d</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2831 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2832 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2833 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2834 >This option increases the debugging level. It is only useful for LWTOOLS |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2835 developers.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2836 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2837 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2838 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2839 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2840 >--help</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2841 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2842 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2843 >-?</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2844 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2845 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2846 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2847 >This provides a listing of command line options and a brief description |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2848 of each.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2849 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2850 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2851 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2852 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2853 >--usage</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2854 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2855 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2856 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2857 >This will display a usage summary |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2858 of each command line option.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2859 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2860 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2861 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2862 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2863 >--version</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2864 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2865 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2866 >-V</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2867 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2868 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2869 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2870 >This will display the version of LWLINK.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2871 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2872 ></DL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2873 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2874 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2875 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2876 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2877 ><HR><H2 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2878 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2879 ><A |
455 | 2880 NAME="AEN911" |
153
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2881 >4.2. Linker Operation</A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2882 ></H2 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2883 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2884 > LWLINK takes one or more files in supported input formats and links them |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2885 into a single binary. Currently supported formats are the LWTOOLS object |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2886 file format and the archive format used by LWAR. While the precise method is |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2887 slightly different, linking can be conceptualized as the following steps. </P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2888 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2889 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2890 ><OL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2891 TYPE="1" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2892 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2893 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2894 >First, the linker loads a linking script. If no script is specified, it |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2895 loads a built-in default script based on the output format selected. This |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2896 script tells the linker how to lay out the various sections in the final |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2897 binary.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2898 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2899 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2900 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2901 >Next, the linker reads all the input files into memory. At this time, it |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2902 flags any format errors in those files. It constructs a table of symbols |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2903 for each object at this time.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2904 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2905 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2906 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2907 >The linker then proceeds with organizing the sections loaded from each file |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2908 according to the linking script. As it does so, it is able to assign addresses |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2909 to each symbol defined in each object file. At this time, the linker may |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2910 also collapse different instances of the same section name into a single |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2911 section by appending the data from each subsequent instance of the section |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2912 to the first instance of the section.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2913 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2914 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2915 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2916 >Next, the linker looks through every object file for every incomplete reference. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2917 It then attempts to fully resolve that reference. If it cannot do so, it |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2918 throws an error. Once a reference is resolved, the value is placed into |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2919 the binary code at the specified section. It should be noted that an |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2920 incomplete reference can reference either a symbol internal to the object |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2921 file or an external symbol which is in the export list of another object |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2922 file.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2923 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2924 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2925 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2926 >If all of the above steps are successful, the linker opens the output file |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2927 and actually constructs the binary.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2928 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2929 ></OL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2930 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2931 ><DIV |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
2932 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2933 ><HR><H2 |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
2934 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2935 ><A |
455 | 2936 NAME="AEN925" |
153
83b7b4ce3bbd
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parents:
diff
changeset
|
2937 >4.3. Linking Scripts</A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2938 ></H2 |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2939 ><P |
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2940 >A linker script is used to instruct the linker about how to assemble the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2941 various sections into a completed binary. It consists of a series of |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2942 directives which are considered in the order they are encountered.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2943 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
2944 >The sections will appear in the resulting binary in the order they are |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2945 specified in the script file. If a referenced section is not found, the linker will behave as though the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2946 section did exist but had a zero size, no relocations, and no exports. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2947 A section should only be referenced once. Any subsequent references will have |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2948 an undefined effect.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2949 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2950 >All numbers are in linking scripts are specified in hexadecimal. All directives |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2951 are case sensitive although the hexadecimal numbers are not.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2952 ><P |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2953 >A section name can be specified as a "*", then any section not |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2954 already matched by the script will be matched. The "*" can be followed |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2955 by a comma and a flag to narrow the section down slightly, also. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2956 If the flag is "!bss", then any section that is not flagged as a bss section |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2957 will be matched. If the flag is "bss", then any section that is flagged as |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2958 bss will be matched.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2959 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2960 >The following directives are understood in a linker script.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2961 ><P |
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Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2962 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2963 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2964 CLASS="VARIABLELIST" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
2965 ><DL |
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|
2966 ><DT |
236
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|
2967 >sectopt <CODE |
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Added ability to add padding after a section when linking.
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|
2968 CLASS="PARAMETER" |
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Added ability to add padding after a section when linking.
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diff
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|
2969 >section</CODE |
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Added ability to add padding after a section when linking.
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diff
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|
2970 > padafter <CODE |
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Added ability to add padding after a section when linking.
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|
2971 CLASS="PARAMETER" |
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diff
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|
2972 >byte,...</CODE |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
2973 ></DT |
ce1fdc8d6568
Added ability to add padding after a section when linking.
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234
diff
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|
2974 ><DD |
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Added ability to add padding after a section when linking.
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234
diff
changeset
|
2975 ><P |
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Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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234
diff
changeset
|
2976 > This will cause the linker to append the specified list of byte values |
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Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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234
diff
changeset
|
2977 (specified in hexadecimal separated by commas) to the end of the named |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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234
diff
changeset
|
2978 section. This is done once all instances of the specified section are |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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234
diff
changeset
|
2979 collected together. This has no effect if the specified section does not |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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234
diff
changeset
|
2980 appear anywhere in any of the objects specified for linking. </P |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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234
diff
changeset
|
2981 ><P |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
2982 > If code depends on the presence of this padding somewhere, it is sufficient |
ce1fdc8d6568
Added ability to add padding after a section when linking.
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234
diff
changeset
|
2983 to include an empty section of the specified name in the object that depends |
ce1fdc8d6568
Added ability to add padding after a section when linking.
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234
diff
changeset
|
2984 on it. </P |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
2985 ></DD |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
2986 ><DT |
234
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
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232
diff
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|
2987 >define basesympat <CODE |
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Added section base and length symbols to lwlink
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232
diff
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|
2988 CLASS="PARAMETER" |
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Added section base and length symbols to lwlink
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232
diff
changeset
|
2989 >string</CODE |
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Added section base and length symbols to lwlink
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232
diff
changeset
|
2990 ></DT |
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Added section base and length symbols to lwlink
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232
diff
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|
2991 ><DD |
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Added section base and length symbols to lwlink
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232
diff
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|
2992 ><P |
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diff
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|
2993 > This causes the linker to define a symbol for the ultimate base address of |
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Added section base and length symbols to lwlink
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diff
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|
2994 each section using the pattern specified by <CODE |
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Added section base and length symbols to lwlink
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232
diff
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|
2995 CLASS="PARAMETER" |
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Added section base and length symbols to lwlink
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232
diff
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|
2996 >string</CODE |
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Added section base and length symbols to lwlink
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232
diff
changeset
|
2997 >. |
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Added section base and length symbols to lwlink
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232
diff
changeset
|
2998 In the string, %s can appear exactly once and will be replaced with the |
d389adbcc4ab
Added section base and length symbols to lwlink
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232
diff
changeset
|
2999 section name. The base address is calculated after all instances of each |
d389adbcc4ab
Added section base and length symbols to lwlink
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parents:
232
diff
changeset
|
3000 section have been collapsed together. </P |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
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232
diff
changeset
|
3001 ><P |
236
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Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
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234
diff
changeset
|
3002 > It should be noted that if none of the objects to be linked contains a |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3003 particular section name, there will be no base symbol defined for it, even |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3004 if it is listed explicitly in the link script. If code depends on the |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3005 presence of these symbols, it is sufficient to include an empty section of |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3006 the specified name in the object that depends on it. </P |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3007 ><P |
234
d389adbcc4ab
Added section base and length symbols to lwlink
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232
diff
changeset
|
3008 > If the pattern resolves to the same string for multiple |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
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232
diff
changeset
|
3009 sections, the results are undefined. </P |
d389adbcc4ab
Added section base and length symbols to lwlink
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232
diff
changeset
|
3010 ></DD |
d389adbcc4ab
Added section base and length symbols to lwlink
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232
diff
changeset
|
3011 ><DT |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3012 >define lensympat <CODE |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3013 CLASS="PARAMETER" |
d389adbcc4ab
Added section base and length symbols to lwlink
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parents:
232
diff
changeset
|
3014 >string</CODE |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3015 ></DT |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
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232
diff
changeset
|
3016 ><DD |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3017 ><P |
d389adbcc4ab
Added section base and length symbols to lwlink
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parents:
232
diff
changeset
|
3018 > This causes the linker to define a symbol for the ultimate length of each |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3019 section using the pattern specified by <CODE |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
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232
diff
changeset
|
3020 CLASS="PARAMETER" |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3021 >string</CODE |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3022 >. In |
d389adbcc4ab
Added section base and length symbols to lwlink
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parents:
232
diff
changeset
|
3023 the string, %s can appear exactly once and will be replaced with the section |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
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232
diff
changeset
|
3024 name. The length is calculated after all instances of a section have been |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3025 collapsed together. </P |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
parents:
232
diff
changeset
|
3026 ><P |
236
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3027 > It should be noted that if none of the objects to be linked contains a |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3028 particular section name, there will be no length symbol defined for it, even |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3029 if it is listed explicitly in the link script. If code depends on the |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3030 presence of these symbols, it is sufficient to include an empty section of |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3031 the specified name in the object that depends on it. </P |
ce1fdc8d6568
Added ability to add padding after a section when linking.
William Astle <lost@l-w.ca>
parents:
234
diff
changeset
|
3032 ><P |
234
d389adbcc4ab
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232
diff
changeset
|
3033 >If the pattern resolves to the same string for multiple |
d389adbcc4ab
Added section base and length symbols to lwlink
William Astle <lost@l-w.ca>
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232
diff
changeset
|
3034 sections, the results are undefined. </P |
d389adbcc4ab
Added section base and length symbols to lwlink
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232
diff
changeset
|
3035 ></DD |
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232
diff
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|
3036 ><DT |
153
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Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3037 >section <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3038 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3039 >name</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3040 > load <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3041 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3042 >addr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3043 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3044 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3045 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3046 > This causes the section <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3047 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3048 >name</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3049 > to load at |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3050 <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3051 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3052 >addr</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3053 >. For the raw target, only one "load at" entry is |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3054 allowed for non-bss sections and it must be the first one. For raw targets, |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3055 it affects the addresses the linker assigns to symbols but has no other |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3056 affect on the output. bss sections may all have separate load addresses but |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3057 since they will not appear in the binary anyway, this is okay.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3058 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3059 >For the decb target, each "load" entry will cause a new "block" to be |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3060 output to the binary which will contain the load address. It is legal for |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3061 sections to overlap in this manner - the linker assumes the loader will sort |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3062 everything out.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3063 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3064 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3065 >section <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3066 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3067 >name</CODE |
316
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3068 > high <CODE |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3069 CLASS="PARAMETER" |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3070 >addr</CODE |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3071 ></DT |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3072 ><DD |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3073 ><P |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3074 > This causes the section <CODE |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3075 CLASS="PARAMETER" |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3076 >name</CODE |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3077 > to load with its end |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3078 address just below <CODE |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3079 CLASS="PARAMETER" |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3080 >addr</CODE |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3081 >. Subsequent sections are |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3082 loaded at progressively lower addresses. This may lead to inefficient file |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3083 encoding for some targets. As of this writing, it will also almost |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3084 certainly do the wrong thing for a raw target. </P |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3085 ><P |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3086 > This is useful for aligning a block of code with high memory. As an |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3087 example, if the total size of a section is $100 bytes and a high address of |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3088 $FE00 is specified, the section will actually load at $FD00. </P |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3089 ></DD |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3090 ><DT |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3091 >section <CODE |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3092 CLASS="PARAMETER" |
c4853a54b4a1
Documented new "high" option for link scripts.
William Astle <lost@l-w.ca>
parents:
254
diff
changeset
|
3093 >name</CODE |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3094 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3095 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3096 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3097 > This will cause the section <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3098 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3099 >name</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3100 > to load after the previously listed |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3101 section.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3102 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3103 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3104 >entry <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3105 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3106 >addr or sym</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3107 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3108 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3109 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3110 >This will cause the execution address (entry point) to be the address |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3111 specified (in hex) or the specified symbol name. The symbol name must |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3112 match a symbol that is exported by one of the object files being linked. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3113 This has no effect for targets that do not encode the entry point into the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3114 resulting file. If not specified, the entry point is assumed to be address 0 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3115 which is probably not what you want. The default link scripts for targets |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3116 that support this directive automatically starts at the beginning of the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3117 first section (usually "init" or "code") that is emitted in the binary.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3118 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3119 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3120 >pad <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3121 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3122 >size</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3123 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3124 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3125 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3126 >This will cause the output file to be padded with NUL bytes to be exactly |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3127 <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3128 CLASS="PARAMETER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3129 >size</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3130 > bytes in length. This only makes sense for a raw target.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3131 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3132 ></DL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3133 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3134 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3135 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3136 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3137 ><HR><H2 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3138 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3139 ><A |
455 | 3140 NAME="AEN991" |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3141 >4.4. Format Specific Linking Notes</A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3142 ></H2 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3143 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3144 >Some formats require special information to be able to generate actual |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3145 binaries. If the specific format you are interested in is not listed in |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3146 this section, then there is nothing special you need to know about to create |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3147 a final binary.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3148 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3149 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3150 ><HR><H3 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3151 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3152 ><A |
455 | 3153 NAME="AEN994" |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3154 >4.4.1. OS9 Modules</A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3155 ></H3 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3156 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3157 >OS9 modules need to embed several items into the module header. These |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3158 items are the type of module, the langauge of the module, the module |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3159 attributes, the module revision number, the data size (bss), and the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3160 execution offset. These are all either calculated or default to reasonable |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3161 values.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3162 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3163 >The data size is calcuated as the sum of all sections named "bss" or |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3164 ".bss" in all object files that are linked together.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3165 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3166 >The execution offset is calculated from the address of the special |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3167 symbol "__start" which must be an exported (external) symbol in one of the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3168 objects to be linked.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3169 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3170 >The type defaults to "Prgrm" or "Program module". The language |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3171 defaults to "Objct" or "6809 object code". Attributes default to enabling |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3172 the re-entrant flag. And finally, the revision defaults to zero.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3173 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3174 >The embedded module name is the output filename. If the output |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3175 filename includes more than just the filename, this will probably not be |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3176 what you want.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3177 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3178 >The type, language, attributes, revision, and module name can all be |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3179 overridden by providing a special section in exactly one of the object files |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3180 to be linked. This section is called "__os9" (note the two underscores). |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3181 To override the type, language, attributes, or revision values, define a |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3182 non-exported symbol in this section called "type", "lang", "attr", or "rev" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3183 respectively. Any other symbols defined are ignored. To override the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3184 module name, include as the only actual code in the section a NUL terminated |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3185 string (the FCN directive is useful for this). If there is no code in the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3186 section or it beings with a NUL, the default name will be used. Any of the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3187 preceeding that are not defined in the special section will retain their |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3188 default values.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3189 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3190 >The built-in link script for OS9 modules will place the following |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3191 sections, in order, in the module: "code", ".text", "data", ".data". It |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3192 will merge all sections with the name "bss" or ".bss" into the "data" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3193 section. All other section names are ignored. What this means is that you |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3194 must define your data variables in the a section called "bss" or ".bss" even |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3195 though you will be refencing them all as offsets from U. This does have the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3196 unpleasant side effect that all BSS references will end up being 16 bit |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3197 offsets because the assembler cannot know what the offset will be once the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3198 linker is finished its work. Thus, if the tightest possible code is |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3199 required, having LWASM directly output the module is a better choice.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3200 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3201 >While the built-in link script is probably sufficient for most |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3202 purposes, you can provide your own script. If you provide a custom link |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3203 script, you must start your code and data sections at location 000D to |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3204 accommodate the module header. Otherwise, you will have an incorrect |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3205 location for the execution offset. You must use the ENTRY directive in the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3206 script to define the entry point for the module.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3207 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3208 >It should also be obvious from the above that you cannot mix the bss |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3209 (rmb) definitions with the module code when linking separately. Those |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3210 familiar with typical module creation will probably find this an unpleasant |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3211 difference but it is unavoidable.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3212 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3213 >It should also be noted that direct page references should also be |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3214 avoided because you cannot know ahead of time whether the linker is going to |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3215 end up putting a particular variable in the first 256 bytes of the module's |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3216 data space. If, however, you know for certain you will have less than 256 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3217 bytes of defined data space across all of the object files that will be |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3218 linked, you can instead use forced DP addressing for your data addresses |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3219 instead of the ,u notation. When linking with 3rd party libraries, this |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3220 practice should be avoided. Also, when creating libraries, always use the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3221 offset from U technique.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3222 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3223 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3224 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3225 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3226 CLASS="CHAPTER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3227 ><HR><H1 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3228 ><A |
455 | 3229 NAME="AEN1006" |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3230 ></A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3231 >Chapter 5. Libraries and LWAR</H1 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3232 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3233 >LWTOOLS also includes a tool for managing libraries. These are analogous to |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3234 the static libraries created with the "ar" tool on POSIX systems. Each library |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3235 file contains one or more object files. The linker will treat the object |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3236 files within a library as though they had been specified individually on |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3237 the command line except when resolving external references. External references |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3238 are looked up first within the object files within the library and then, if |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3239 not found, the usual lookup based on the order the files are specified on |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3240 the command line occurs.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3241 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3242 >The tool for creating these libary files is called LWAR.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3243 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3244 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3245 ><HR><H2 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3246 CLASS="SECTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3247 ><A |
455 | 3248 NAME="AEN1010" |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3249 >5.1. Command Line Options</A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3250 ></H2 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3251 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3252 >The binary for LWAR is called "lwar". Note that the binary is in lower |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3253 case. The options lwar understands are listed below. For archive manipulation |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3254 options, the first non-option argument is the name of the archive. All other |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3255 non-option arguments are the names of files to operate on.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3256 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3257 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3258 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3259 CLASS="VARIABLELIST" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3260 ><DL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3261 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3262 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3263 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3264 >--add</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3265 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3266 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3267 >-a</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3268 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3269 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3270 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3271 >This option specifies that an archive is going to have files added to it. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3272 If the archive does not already exist, it is created. New files are added |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3273 to the end of the archive.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3274 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3275 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3276 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3277 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3278 >--create</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3279 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3280 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3281 >-c</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3282 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3283 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3284 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3285 >This option specifies that an archive is going to be created and have files |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3286 added to it. If the archive already exists, it is truncated.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3287 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3288 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3289 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3290 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3291 >--merge</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3292 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3293 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3294 >-m</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3295 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3296 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3297 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3298 >If specified, any files specified to be added to an archive will be checked |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3299 to see if they are archives themselves. If so, their constituent members are |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3300 added to the archive. This is useful for avoiding archives containing archives.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3301 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3302 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3303 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3304 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3305 >--list</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3306 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3307 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3308 >-l</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3309 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3310 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3311 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3312 >This will display a list of the files contained in the archive.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3313 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3314 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3315 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3316 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3317 >--debug</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3318 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3319 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3320 >-d</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3321 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3322 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3323 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3324 >This option increases the debugging level. It is only useful for LWTOOLS |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3325 developers.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3326 ></DD |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3327 ><DT |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3328 ><CODE |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3329 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3330 >--help</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3331 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3332 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3333 >-?</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3334 ></DT |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3335 ><DD |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3336 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3337 >This provides a listing of command line options and a brief description |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3338 of each.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3339 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3340 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3341 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3342 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3343 >--usage</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3344 ></DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3345 ><DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3346 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3347 >This will display a usage summary |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3348 of each command line option.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3349 ></DD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3350 ><DT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3351 ><CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3352 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3353 >--version</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3354 >, <CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3355 CLASS="OPTION" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3356 >-V</CODE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3357 ></DT |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3358 ><DD |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3359 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3360 >This will display the version of LWLINK. |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3361 of each.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3362 ></DD |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3363 ></DL |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3364 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3365 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3366 ></DIV |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3367 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3368 CLASS="CHAPTER" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3369 ><HR><H1 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3370 ><A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3371 NAME="OBJCHAP" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3372 ></A |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3373 >Chapter 6. Object Files</H1 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3374 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3375 >LWTOOLS uses a proprietary object file format. It is proprietary in the sense |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3376 that it is specific to LWTOOLS, not that it is a hidden format. It would be |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3377 hard to keep it hidden in an open source tool chain anyway. This chapter |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3378 documents the object file format.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3379 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3380 >An object file consists of a series of sections each of which contains a |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3381 list of exported symbols, a list of incomplete references, and a list of |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3382 "local" symbols which may be used in calculating incomplete references. Each |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3383 section will obviously also contain the object code.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3384 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3385 >Exported symbols must be completely resolved to an address within the |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3386 section it is exported from. That is, an exported symbol must be a constant |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3387 rather than defined in terms of other symbols.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3388 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3389 >Each object file starts with a magic number and version number. The magic |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3390 number is the string "LWOBJ16" for this 16 bit object file format. The only |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3391 defined version number is currently 0. Thus, the first 8 bytes of the object |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3392 file are <FONT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3393 COLOR="RED" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3394 >4C574F424A313600</FONT |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3395 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3396 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3397 >Each section has the following items in order:</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3398 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3399 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3400 ><UL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3401 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3402 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3403 >section name</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3404 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3405 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3406 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3407 >flags</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3408 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3409 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3410 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3411 >list of local symbols (and addresses within the section)</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3412 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3413 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3414 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3415 >list of exported symbols (and addresses within the section)</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3416 ></LI |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3417 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3418 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3419 >list of incomplete references along with the expressions to calculate them</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3420 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3421 ><LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3422 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3423 >the actual object code (for non-BSS sections)</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3424 ></LI |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3425 ></UL |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3426 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3427 >The section starts with the name of the section with a NUL termination |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3428 followed by a series of flag bytes terminated by NUL. There are only two |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3429 flag bytes defined. A NUL (0) indicates no more flags and a value of 1 |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3430 indicates the section is a BSS section. For a BSS section, no actual |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3431 code is included in the object file.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3432 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3433 >Either a NULL section name or end of file indicate the presence of no more |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3434 sections.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3435 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3436 >Each entry in the exported and local symbols table consists of the symbol |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3437 (NUL terminated) followed by two bytes which contain the value in big endian |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3438 order. The end of a symbol table is indicated by a NULL symbol name.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3439 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3440 >Each entry in the incomplete references table consists of an expression |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3441 followed by a 16 bit offset where the reference goes. Expressions are |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3442 defined as a series of terms up to an "end of expression" term. Each term |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3443 consists of a single byte which identifies the type of term (see below) |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3444 followed by any data required by the term. Then end of the list is flagged |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3445 by a NULL expression (only an end of expression term).</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3446 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3447 CLASS="TABLE" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3448 ><A |
455 | 3449 NAME="AEN1093" |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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parents:
diff
changeset
|
3450 ></A |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3451 ><P |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3452 ><B |
83b7b4ce3bbd
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lost@l-w.ca
parents:
diff
changeset
|
3453 >Table 6-1. Object File Term Types</B |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3454 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3455 ><TABLE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3456 BORDER="1" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3457 FRAME="border" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3458 CLASS="CALSTABLE" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3459 ><COL><COL><THEAD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3460 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3461 ><TH |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3462 >TERMTYPE</TH |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3463 ><TH |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3464 >Meaning</TH |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3465 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3466 ></THEAD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3467 ><TBODY |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3468 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3469 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3470 >00</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3471 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3472 >end of expression</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3473 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3474 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3475 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3476 >01</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3477 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3478 >integer (16 bit in big endian order follows)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3479 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3480 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3481 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3482 >02</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3483 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3484 > external symbol reference (NUL terminated symbol name follows)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3485 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3486 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3487 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3488 >03</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3489 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3490 >local symbol reference (NUL terminated symbol name follows)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3491 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3492 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3493 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3494 >04</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3495 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3496 >operator (1 byte operator number)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3497 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3498 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3499 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3500 >05</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3501 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3502 >section base address reference</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3503 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3504 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3505 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3506 >FF</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3507 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3508 >This term will set flags for the expression. Each one of these terms will set a single flag. All of them should be specified first in an expression. If they are not, the behaviour is undefined. The byte following is the flag. Flag 01 indicates an 8 bit relocation. Flag 02 indicates a zero-width relocation (see the EXTDEP pseudo op in LWASM).</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3509 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3510 ></TBODY |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3511 ></TABLE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3512 ></DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3513 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3514 >External references are resolved using other object files while local |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3515 references are resolved using the local symbol table(s) from this file. This |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3516 allows local symbols that are not exported to have the same names as |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3517 exported symbols or external references.</P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3518 ><DIV |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3519 CLASS="TABLE" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3520 ><A |
455 | 3521 NAME="AEN1123" |
153
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3522 ></A |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3523 ><P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3524 ><B |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3525 >Table 6-2. Object File Operator Numbers</B |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3526 ></P |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3527 ><TABLE |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3528 BORDER="1" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3529 FRAME="border" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3530 CLASS="CALSTABLE" |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3531 ><COL><COL><THEAD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3532 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3533 ><TH |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3534 >Number</TH |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3535 ><TH |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3536 >Operator</TH |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3537 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3538 ></THEAD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3539 ><TBODY |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3540 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3541 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3542 >01</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3543 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3544 >addition (+)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3545 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3546 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3547 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3548 >02</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3549 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3550 >subtraction (-)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3551 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3552 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3553 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3554 >03</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3555 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3556 >multiplication (*)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3557 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3558 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3559 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3560 >04</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3561 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3562 >division (/)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3563 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3564 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3565 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3566 >05</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3567 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3568 >modulus (%)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3569 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3570 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3571 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3572 >06</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3573 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3574 >integer division (\) (same as division)</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3575 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3576 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3577 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3578 >07</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3579 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3580 >bitwise and</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3581 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3582 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3583 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3584 >08</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3585 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3586 >bitwise or</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3587 ></TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3588 ><TR |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3589 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3590 >09</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3591 ><TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
lost@l-w.ca
parents:
diff
changeset
|
3592 >bitwise xor</TD |
83b7b4ce3bbd
Added prebuilt manual to repository to avoid failures to include it during releases
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3593 ></TR |
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3594 ><TR |
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3595 ><TD |
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3596 >0A</TD |
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3597 ><TD |
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3598 >boolean and</TD |
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3599 ></TR |
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3600 ><TR |
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3601 ><TD |
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3602 >0B</TD |
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3603 ><TD |
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3604 >boolean or</TD |
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3605 ></TR |
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3606 ><TR |
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3607 ><TD |
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3608 >0C</TD |
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3609 ><TD |
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3610 >unary negation, 2's complement (-)</TD |
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3611 ></TR |
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3612 ><TR |
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3613 ><TD |
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3614 >0D</TD |
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3615 ><TD |
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3616 >unary 1's complement (^)</TD |
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3617 ></TR |
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3618 ></TBODY |
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3619 ></TABLE |
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3620 ></DIV |
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3621 ><P |
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3622 >An expression is represented in a postfix manner with both operands for |
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3623 binary operators preceding the operator and the single operand for unary |
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3624 operators preceding the operator.</P |
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3625 ></DIV |
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3626 ></DIV |
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3627 ></BODY |
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3628 ></HTML |
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3629 > |