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annotate lwasm/lwasm.h @ 146:f5b8559a5f35

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Added ENDIF as alias for ENDC
author lost@l-w.ca
date Wed, 24 Aug 2011 21:16:17 -0600
parents 697bc543368c
children fc8386b13399
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 lwasm.h
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3
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4 Copyright © 2010 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #ifndef ___lwasm_h_seen___
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23 #define ___lwasm_h_seen___
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24
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25 #include <lw_expr.h>
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26 #include <lw_stringlist.h>
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27 #include <lw_stack.h>
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29
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30 // these are allowed chars BELOW 0x80 for symbols
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31 // first is symbol start chars, second is anywhere in symbol
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32 #define SSYMCHARS "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_@$"
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33 #define SYMCHARS SSYMCHARS ".?0123456789"
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34
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35 typedef struct asmstate_s asmstate_t;
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36
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37 enum
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38 {
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39 lwasm_expr_linelen = 1, // length of ref'd line
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40 lwasm_expr_lineaddr = 2, // addr of ref'd line
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41 lwasm_expr_nextbp = 3, // next branch point
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42 lwasm_expr_prevbp = 4, // previous branch point
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43 lwasm_expr_syment = 5, // symbol table entry
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44 lwasm_expr_import = 6, // symbol import entry
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45 lwasm_expr_secbase = 7, // section base address
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46 lwasm_expr_linedaddr = 8, // data address of the line
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47 lwasm_expr_linedlen = 9 // data length of the line
0
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48 };
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49
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50 enum lwasm_output_e
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51 {
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52 OUTPUT_DECB = 0, // DECB multirecord format
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53 OUTPUT_RAW, // raw sequence of bytes
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54 OUTPUT_OBJ, // proprietary object file format
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55 OUTPUT_RAWREL, // raw bytes where ORG causes a SEEK in the file
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56 OUTPUT_OS9 // os9 module target
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57 };
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58
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59 enum lwasm_target_e
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60 {
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61 TARGET_6309 = 0, // target 6309 CPU
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62 TARGET_6809 // target 6809 CPU (no 6309 ops)
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63 };
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64
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65 enum lwasm_flags_e
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66 {
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67 FLAG_LIST = 0x0001,
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68 FLAG_DEPEND = 0x0002,
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69 FLAG_SYMBOLS = 0x004,
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70 FLAG_DEPENDNOERR = 0x0008,
0
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71 FLAG_NONE = 0
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72 };
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73
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74 enum lwasm_pragmas_e
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75 {
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76 PRAGMA_NONE = 0, // no pragmas in effect
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77 PRAGMA_DOLLARNOTLOCAL = 0x0001, // dollar sign does not make a symbol local
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78 PRAGMA_NOINDEX0TONONE = 0x0002, // do not change implicit 0,R to ,R
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79 PRAGMA_UNDEFEXTERN = 0x0004, // undefined symbols are considered to be external
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80 PRAGMA_CESCAPES = 0x0008, // allow C style escapes in fcc, fcs, fcn, etc.
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81 PRAGMA_IMPORTUNDEFEXPORT = 0x0010, // imports symbol if undefined upon export
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82 PRAGMA_PCASPCR = 0x0020, // treats ,PC as ,PCR instead of constant offset
81
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83 PRAGMA_SHADOW = 0x0040, // allow macros to shadow builtin operations
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84 PRAGMA_NOLIST = 0x0080, // don't show line in listing
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85 PRAGMA_AUTOBRANCHLENGTH = 0x0100 // automatically select proper length for relative branches
0
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86 };
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87
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88
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89 enum
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90 {
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91 section_flag_bss = 1, // BSS section
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92 section_flag_none = 0 // no flags
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93 };
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94
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95 typedef struct reloctab_s reloctab_t;
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96 struct reloctab_s
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97 {
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98 lw_expr_t offset; // offset of relocation
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99 int size; // size of relocation
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100 lw_expr_t expr; // relocation expression
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101 reloctab_t *next;
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102 };
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103
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104 typedef struct sectiontab_s sectiontab_t;
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105 struct sectiontab_s
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106 {
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107 char *name; // section name
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108 int flags; // section flags;
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109 lw_expr_t offset; // offset for next instance
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110 int oblen; // size of section output
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111 int obsize; // size of output buffer
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112 unsigned char *obytes; // output buffer
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113 reloctab_t *reloctab; // table of relocations
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114 sectiontab_t *next;
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115 };
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116
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117 typedef struct lwasm_error_s lwasm_error_t;
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118 struct lwasm_error_s
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119 {
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120 char *mess; // actual error message
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121 lwasm_error_t *next; // ptr to next error
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122 };
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123
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124 struct line_expr_s
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125 {
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126 lw_expr_t expr;
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127 int id;
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128 struct line_expr_s *next;
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129 };
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130
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131 typedef struct line_s line_t;
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132
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133 typedef struct exportlist_s exportlist_t;
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134 struct exportlist_s
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135 {
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136 char *symbol; // symbol to export
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137 struct symtabe *se; // symbol table entry
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138 line_t *line; // line the export is on
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139 exportlist_t *next; // next in the export list
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140 };
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141
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142 typedef struct importlist_s importlist_t;
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143 struct importlist_s
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144 {
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145 char *symbol; // symbol to import
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146 importlist_t *next; // next in the import list
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147 };
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148
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149 struct line_s
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150 {
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151 lw_expr_t addr; // assembly address of the line
142
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152 lw_expr_t daddr; // data address of the line (os9 only)
0
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153 int len; // the "size" this line occupies (address space wise) (-1 if unknown)
142
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154 int dlen; // the data "size" this line occupies (-1 if unknown)
0
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155 int insn; // number of insn in insn table
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156 int symset; // set if the line symbol was consumed by the instruction
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157 char *sym; // symbol, if any, on the line
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158 unsigned char *output; // output bytes
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159 int outputl; // size of output
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160 int outputbl; // size of output buffer
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161 int dpval; // direct page value
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162 lwasm_error_t *err; // list of errors
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163 lwasm_error_t *warn; // list of errors
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164 line_t *prev; // previous line
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165 line_t *next; // next line
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166 int inmod; // inside a module?
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167 sectiontab_t *csect; // which section are we in?
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168 struct line_expr_s *exprs; // expressions used during parsing
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169 char *lstr; // string passed forward
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170 int pb; // pass forward post byte
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171 int lint; // pass forward integer
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172 int lint2; // another pass forward integer
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173 asmstate_t *as; // assembler state data ptr
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174 int pragmas; // pragmas in effect for the line
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175 int context; // the symbol context number
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176 char *ltext; // line number
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177 char *linespec; // line spec
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178 int lineno; // line number
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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179 int soff; // struct offset (for listings)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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180 int dshow; // data value to show (for listings)
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181 int dsize; // set to 1 for 8 bit dshow value
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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182 int isbrpt; // set to 1 if this line is a branch point
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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183 struct symtabe *dptr; // symbol value to display
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184
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185 int noexpand_start; // start of a no-expand block
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186 int noexpand_end; // end of a no-expand block
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187
0
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188 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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189
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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190 enum
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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191 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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192 symbol_flag_set = 1, // symbol was used with "set"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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193 symbol_flag_nocheck = 2, // do not check symbol characters
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428068681cbf Added nolist pragma to suppress listing output of non-code generating lines
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194 symbol_flag_nolist = 4, // no not show symbol in symbol table
0
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195 symbol_flag_none = 0 // no flags
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196 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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197
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198 struct symtabe
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199 {
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200 char *symbol; // the name of the symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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201 int context; // symbol context (-1 for global)
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202 int version; // version of the symbol (for "set")
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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203 int flags; // flags for the symbol
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204 sectiontab_t *section; // section the symbol is defined in
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205 lw_expr_t value; // symbol value
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206 struct symtabe *next; // next symbol in the table
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207 };
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208
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209 typedef struct
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210 {
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211 struct symtabe *head; // start of symbol table
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212 } symtab_t;
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213
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214 typedef struct macrotab_s macrotab_t;
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215 struct macrotab_s
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216 {
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217 char *name; // name of macro
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218 char **lines; // macro lines
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219 int numlines; // number lines in macro
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220 int flags; // flags for the macro
0
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221 macrotab_t *next; // next macro in list
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222 };
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223
49
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224 enum
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225 {
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226 macro_noexpand = 1 // set to not expland the macro by default in listing
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227 };
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228
0
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229 typedef struct structtab_s structtab_t;
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230 typedef struct structtab_field_s structtab_field_t;
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231
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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232 struct structtab_field_s
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233 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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234 char *name; // structure field name - NULL for anonymous
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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235 int size; // structure field size
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236 structtab_t *substruct; // sub structure if there is one
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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237 structtab_field_t *next; // next field entry
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238 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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239
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240 struct structtab_s
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241 {
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242 char *name; // name of structure
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243 int size; // number of bytes taken by struct
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244 structtab_field_t *fields; // fields in the structure
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245 structtab_t *next; // next structure
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246 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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247
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248 struct asmstate_s
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249 {
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250 int output_format; // output format
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251 int target; // assembly target
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252 int debug_level; // level of debugging requested
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253 FILE *debug_file; // FILE * to output debug messages to
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254 int flags; // assembly flags
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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255 int pragmas; // pragmas currently in effect
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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256 int errorcount; // number of errors encountered
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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257 int inmacro; // are we in a macro?
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258 int instruct; // are w in a structure?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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259 int skipcond; // skipping a condition?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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260 int skipcount; // depth of "skipping"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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261 int skipmacro; // are we skipping in a macro?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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262 int endseen; // have we seen an "end" pseudo?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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263 int execaddr; // address from "end"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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264 int inmod; // inside an os9 module?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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265 unsigned char crc[3]; // crc accumulator
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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266 int badsymerr; // throw error on undef sym if set
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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267
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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268 line_t *line_head; // start of lines list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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269 line_t *line_tail; // tail of lines list
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270
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271 line_t *cl; // current line pointer
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272
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273 sectiontab_t *csect; // current section
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274
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275 int context; // the current "context"
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276 int nextcontext; // the next available context
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277
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278 symtab_t symtab; // meta data for the symbol table
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279 macrotab_t *macros; // macro table
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280 sectiontab_t *sections; // section table
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281 exportlist_t *exportlist; // list of exported symbols
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282 importlist_t *importlist; // list of imported symbols
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283 char *list_file; // name of file to list to
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284 char *output_file; // output file name
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285 lw_stringlist_t input_files; // files to assemble
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286 void *input_data; // opaque data used by the input system
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287 lw_stringlist_t include_list; // include paths
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288 lw_stack_t file_dir; // stack of the "current file" dir
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289 lw_stack_t includelist;
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290
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291 structtab_t *structs; // defined structures
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292 structtab_t *cstruct; // current structure
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293 lw_expr_t savedaddr; // old address counter before struct started
0
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294 int exportcheck; // set if we need to collapse out the section base to 0
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ceab04fd2969 Fixed premature installation of external reference under UNDEFEXTERN pragma; should not resolve to external references until after the initial parsing pass
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295 int passno; // set to the current pass number
0
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296 };
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297
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298 #ifndef ___symbol_c_seen___
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299
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300 extern struct symtabe *register_symbol(asmstate_t *as, line_t *cl, char *sym, lw_expr_t value, int flags);
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301 extern struct symtabe *lookup_symbol(asmstate_t *as, line_t *cl, char *sym);
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302
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303 #endif
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304
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305 #ifndef ___lwasm_c_seen___
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306
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307 extern void lwasm_register_error(asmstate_t *as, line_t *cl, const char *msg, ...);
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308 extern void lwasm_register_warning(asmstate_t *as, line_t *cl, const char *msg, ...);
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309 extern int lwasm_next_context(asmstate_t *as);
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310 extern void lwasm_emit(line_t *cl, int byte);
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311 extern void lwasm_emitop(line_t *cl, int opc);
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312
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313 extern void lwasm_save_expr(line_t *cl, int id, lw_expr_t expr);
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314 extern lw_expr_t lwasm_fetch_expr(line_t *cl, int id);
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315 extern lw_expr_t lwasm_parse_expr(asmstate_t *as, char **p);
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316 extern int lwasm_emitexpr(line_t *cl, lw_expr_t expr, int s);
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317
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318 extern void skip_operand(char **p);
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319
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320 extern int lwasm_lookupreg2(const char *rlist, char **p);
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321 extern int lwasm_lookupreg3(const char *rlist, char **p);
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322
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323 extern void lwasm_show_errors(asmstate_t *as);
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324
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325 extern int lwasm_reduce_expr(asmstate_t *as, lw_expr_t expr);
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326
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327 extern lw_expr_t lwasm_parse_cond(asmstate_t *as, char **p);
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328
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329 #endif
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330
0
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331 extern void debug_message(asmstate_t *as, int level, const char *fmt, ...);
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332 extern void dump_state(asmstate_t *as);
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333
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334
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335 #define OPLEN(op) (((op)>0xFF)?2:1)
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336 #define CURPRAGMA(l,p) (((l) && ((l)->pragmas & (p))) ? 1 : 0)
0
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337
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338 #endif /* ___lwasm_h_seen___ */