Mercurial > hg > index.cgi
annotate lwasm/output.c @ 250:644f8abf87dc
Apply division by zero fix to modulus operator too.
Modulus is also division. It also needs protection against division by zero.
author | William Astle <lost@l-w.ca> |
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date | Fri, 25 Jan 2013 21:54:02 -0700 |
parents | 2b784a28428e |
children | d4ac484d0ec6 |
rev | line source |
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0
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1 /* |
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2 output.c |
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3 Copyright © 2009, 2010 William Astle |
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4 |
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5 This file is part of LWASM. |
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6 |
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7 LWASM is free software: you can redistribute it and/or modify it under the |
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8 terms of the GNU General Public License as published by the Free Software |
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9 Foundation, either version 3 of the License, or (at your option) any later |
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10 version. |
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11 |
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12 This program is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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15 more details. |
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16 |
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17 You should have received a copy of the GNU General Public License along with |
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18 this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 |
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21 Contains the code for actually outputting the assembled code |
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22 */ |
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23 #include <errno.h> |
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24 #include <stdio.h> |
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25 #include <string.h> |
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26 #include <unistd.h> |
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27 |
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28 #include <lw_alloc.h> |
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29 #include <lw_expr.h> |
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30 |
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31 #include "lwasm.h" |
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32 |
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33 void write_code_raw(asmstate_t *as, FILE *of); |
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34 void write_code_decb(asmstate_t *as, FILE *of); |
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35 void write_code_rawrel(asmstate_t *as, FILE *of); |
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36 void write_code_obj(asmstate_t *as, FILE *of); |
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37 void write_code_os9(asmstate_t *as, FILE *of); |
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38 |
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39 // this prevents warnings about not using the return value of fwrite() |
221 | 40 // r++ prevents the "set but not used" warnings; should be optimized out |
41 #define writebytes(s, l, c, f) do { int r; r = fwrite((s), (l), (c), (f)); r++; } while (0) | |
0
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42 |
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43 void do_output(asmstate_t *as) |
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44 { |
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45 FILE *of; |
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46 |
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47 if (as -> errorcount > 0) |
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48 { |
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49 fprintf(stderr, "Not doing output due to assembly errors.\n"); |
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50 return; |
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51 } |
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52 |
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53 of = fopen(as -> output_file, "wb"); |
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54 if (!of) |
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55 { |
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56 fprintf(stderr, "Cannot open '%s' for output", as -> output_file); |
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57 perror(""); |
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58 return; |
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59 } |
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60 |
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61 switch (as -> output_format) |
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62 { |
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63 case OUTPUT_RAW: |
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64 write_code_raw(as, of); |
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65 break; |
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66 |
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67 case OUTPUT_DECB: |
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68 write_code_decb(as, of); |
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69 break; |
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70 |
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71 case OUTPUT_RAWREL: |
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72 write_code_rawrel(as, of); |
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73 break; |
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74 |
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75 case OUTPUT_OBJ: |
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76 write_code_obj(as, of); |
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77 break; |
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78 |
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79 case OUTPUT_OS9: |
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80 write_code_os9(as, of); |
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81 break; |
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82 |
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83 default: |
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84 fprintf(stderr, "BUG: unrecognized output format when generating output file\n"); |
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85 fclose(of); |
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86 unlink(as -> output_file); |
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87 return; |
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88 } |
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89 |
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90 fclose(of); |
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91 } |
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92 |
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93 /* |
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94 rawrel output treats an ORG directive as an offset from the start of the |
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95 file. Undefined results will occur if an ORG directive moves the output |
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96 pointer backward. This particular implementation uses "fseek" to handle |
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97 ORG requests and to skip over RMBs. |
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98 |
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99 This simple brain damanged method simply does an fseek before outputting |
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100 each instruction. |
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101 */ |
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102 void write_code_rawrel(asmstate_t *as, FILE *of) |
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103 { |
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104 line_t *cl; |
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105 |
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106 for (cl = as -> line_head; cl; cl = cl -> next) |
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107 { |
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108 if (cl -> outputl <= 0) |
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109 continue; |
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110 |
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111 fseek(of, lw_expr_intval(cl -> addr), SEEK_SET); |
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112 writebytes(cl -> output, cl -> outputl, 1, of); |
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113 } |
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114 } |
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115 |
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116 /* |
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117 raw merely writes all the bytes directly to the file as is. ORG is just a |
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118 reference for the assembler to handle absolute references. Multiple ORG |
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119 statements will produce mostly useless results |
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120 */ |
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121 void write_code_raw(asmstate_t *as, FILE *of) |
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|
122 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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123 line_t *cl; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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124 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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125 for (cl = as -> line_head; cl; cl = cl -> next) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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126 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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127 if (cl -> len > 0 && cl -> outputl == 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
128 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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129 int i; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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130 for (i = 0; i < cl -> len; i++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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131 writebytes("\0", 1, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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132 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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133 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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134 else if (cl -> outputl > 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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135 writebytes(cl -> output, cl -> outputl, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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136 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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137 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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138 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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139 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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140 /* |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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141 OS9 target also just writes all the bytes in order. No need for anything |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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142 else. |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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143 */ |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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144 void write_code_os9(asmstate_t *as, FILE *of) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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145 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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146 line_t *cl; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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147 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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148 for (cl = as -> line_head; cl; cl = cl -> next) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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149 { |
127
d92b9c968731
Removed protection from outputting code outside os9 module in os9 target
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150 // if (cl -> inmod == 0) |
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151 // continue; |
0
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152 if (cl -> len > 0 && cl -> outputl == 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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153 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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154 int i; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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155 for (i = 0; i < cl -> len; i++) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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156 writebytes("\0", 1, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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157 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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158 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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159 else if (cl -> outputl > 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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160 writebytes(cl -> output, cl -> outputl, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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161 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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162 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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163 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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164 void write_code_decb(asmstate_t *as, FILE *of) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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165 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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166 long preambloc; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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167 line_t *cl; |
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168 int blocklen = -1; |
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169 int nextcalc = -1; |
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170 unsigned char outbuf[5]; |
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171 int caddr; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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172 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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173 for (cl = as -> line_head; cl; cl = cl -> next) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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174 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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175 if (cl -> outputl < 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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176 continue; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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177 caddr = lw_expr_intval(cl -> addr); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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178 if (caddr != nextcalc && cl -> outputl > 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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179 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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180 // need preamble here |
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181 if (blocklen > 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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182 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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183 // update previous preamble if needed |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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184 fseek(of, preambloc, SEEK_SET); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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185 outbuf[0] = (blocklen >> 8) & 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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186 outbuf[1] = blocklen & 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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187 writebytes(outbuf, 2, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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188 fseek(of, 0, SEEK_END); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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189 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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190 blocklen = 0; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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191 nextcalc = caddr; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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192 outbuf[0] = 0x00; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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193 outbuf[1] = 0x00; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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194 outbuf[2] = 0x00; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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195 outbuf[3] = (nextcalc >> 8) & 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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196 outbuf[4] = nextcalc & 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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197 preambloc = ftell(of) + 1; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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198 writebytes(outbuf, 5, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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199 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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200 nextcalc += cl -> outputl; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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201 writebytes(cl -> output, cl -> outputl, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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202 blocklen += cl -> outputl; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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203 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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204 if (blocklen > 0) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
205 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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206 fseek(of, preambloc, SEEK_SET); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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207 outbuf[0] = (blocklen >> 8) & 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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208 outbuf[1] = blocklen & 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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209 writebytes(outbuf, 2, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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210 fseek(of, 0, SEEK_END); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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211 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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212 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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213 // now write postamble |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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214 outbuf[0] = 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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215 outbuf[1] = 0x00; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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216 outbuf[2] = 0x00; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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217 outbuf[3] = (as -> execaddr >> 8) & 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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218 outbuf[4] = (as -> execaddr) & 0xFF; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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219 writebytes(outbuf, 5, 1, of); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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220 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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221 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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222 void write_code_obj_sbadd(sectiontab_t *s, unsigned char b) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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223 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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224 if (s -> oblen >= s -> obsize) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
225 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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226 s -> obytes = lw_realloc(s -> obytes, s -> obsize + 128); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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227 s -> obsize += 128; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
228 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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229 s -> obytes[s -> oblen] = b; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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230 s -> oblen += 1; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
231 } |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff
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|
232 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
233 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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234 int write_code_obj_expraux(lw_expr_t e, void *of) |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
235 { |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
236 int tt; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
237 int v; |
12
6b9991fb39b6
Brought forward patch to fix bug with complex external references generating invalid relocations in the object file
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2
diff
changeset
|
238 int count = 1; |
0
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
239 unsigned char buf[16]; |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
240 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
241 tt = lw_expr_type(e); |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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242 |
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Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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|
243 switch (tt) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
244 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
245 case lw_expr_type_oper: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
246 buf[0] = 0x04; |
12
6b9991fb39b6
Brought forward patch to fix bug with complex external references generating invalid relocations in the object file
lost@l-w.ca
parents:
2
diff
changeset
|
247 |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
248 switch (lw_expr_whichop(e)) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
249 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
250 case lw_expr_oper_plus: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
251 buf[1] = 0x01; |
12
6b9991fb39b6
Brought forward patch to fix bug with complex external references generating invalid relocations in the object file
lost@l-w.ca
parents:
2
diff
changeset
|
252 count = lw_expr_operandcount(e) - 1; |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
253 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
254 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
255 case lw_expr_oper_minus: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
256 buf[1] = 0x02; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
257 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
258 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
259 case lw_expr_oper_times: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
260 buf[1] = 0x03; |
12
6b9991fb39b6
Brought forward patch to fix bug with complex external references generating invalid relocations in the object file
lost@l-w.ca
parents:
2
diff
changeset
|
261 count = lw_expr_operandcount(e) - 1; |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
262 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
263 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
264 case lw_expr_oper_divide: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
265 buf[1] = 0x04; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
266 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
267 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
268 case lw_expr_oper_mod: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
269 buf[1] = 0x05; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
270 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
271 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
272 case lw_expr_oper_intdiv: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
273 buf[1] = 0x06; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
274 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
275 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
276 case lw_expr_oper_bwand: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
277 buf[1] = 0x07; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
278 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
279 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
280 case lw_expr_oper_bwor: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
281 buf[1] = 0x08; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
282 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
283 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
284 case lw_expr_oper_bwxor: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
285 buf[1] = 0x09; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
286 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
287 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
288 case lw_expr_oper_and: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
289 buf[1] = 0x0A; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
290 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
291 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
292 case lw_expr_oper_or: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
293 buf[1] = 0x0B; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
294 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
295 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
296 case lw_expr_oper_neg: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
297 buf[1] = 0x0C; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
298 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
299 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
300 case lw_expr_oper_com: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
301 buf[1] = 0x0D; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
302 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
303 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
304 default: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
305 buf[1] = 0xff; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
306 } |
12
6b9991fb39b6
Brought forward patch to fix bug with complex external references generating invalid relocations in the object file
lost@l-w.ca
parents:
2
diff
changeset
|
307 while (count--) |
6b9991fb39b6
Brought forward patch to fix bug with complex external references generating invalid relocations in the object file
lost@l-w.ca
parents:
2
diff
changeset
|
308 writebytes(buf, 2, 1, of); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
309 return 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
310 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
311 case lw_expr_type_int: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
312 v = lw_expr_intval(e); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
313 buf[0] = 0x01; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
314 buf[1] = (v >> 8) & 0xff; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
315 buf[2] = v & 0xff; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
316 writebytes(buf, 3, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
317 return 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
318 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
319 case lw_expr_type_special: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
320 v = lw_expr_specint(e); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
321 switch (v) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
322 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
323 case lwasm_expr_secbase: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
324 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
325 // replaced with a synthetic symbol |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
326 sectiontab_t *se; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
327 se = lw_expr_specptr(e); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
328 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
329 writebytes("\x03\x02", 2, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
330 writebytes(se -> name, strlen(se -> name) + 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
331 return 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
332 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
333 case lwasm_expr_import: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
334 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
335 importlist_t *ie; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
336 ie = lw_expr_specptr(e); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
337 buf[0] = 0x02; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
338 writebytes(buf, 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
339 writebytes(ie -> symbol, strlen(ie -> symbol) + 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
340 return 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
341 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
342 case lwasm_expr_syment: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
343 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
344 struct symtabe *se; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
345 se = lw_expr_specptr(e); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
346 buf[0] = 0x03; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
347 writebytes(buf, 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
348 writebytes(se -> symbol, strlen(se -> symbol), 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
349 if (se -> context != -1) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
350 { |
2
7317fbe024af
Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents:
0
diff
changeset
|
351 sprintf((char *)buf, "\x01%d", se -> context); |
7317fbe024af
Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents:
0
diff
changeset
|
352 writebytes(buf, strlen((char *)buf), 1, of); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
353 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
354 writebytes("", 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
355 return 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
356 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
357 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
358 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
359 default: |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
360 // unrecognized term type - replace with integer 0 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
361 // fprintf(stderr, "Unrecognized term type: %s\n", lw_expr_print(e)); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
362 buf[0] = 0x01; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
363 buf[1] = 0x00; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
364 buf[2] = 0x00; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
365 writebytes(buf, 3, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
366 break; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
367 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
368 return 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
369 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
370 |
195
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
371 void write_code_obj_auxsym(asmstate_t *as, FILE *of, sectiontab_t *s, struct symtabe *se2) |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
372 { |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
373 struct symtabe *se; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
374 unsigned char buf[16]; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
375 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
376 if (!se2) |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
377 return; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
378 write_code_obj_auxsym(as, of, s, se2 -> left); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
379 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
380 for (se = se2; se; se = se -> nextver) |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
381 { |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
382 lw_expr_t te; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
383 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
384 debug_message(as, 200, "Consider symbol %s (%p) for export in section %p", se -> symbol, se -> section, s); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
385 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
386 // ignore symbols not in this section |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
387 if (se -> section != s) |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
388 continue; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
389 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
390 debug_message(as, 200, " In section"); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
391 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
392 if (se -> flags & symbol_flag_set) |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
393 continue; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
394 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
395 debug_message(as, 200, " Not symbol_flag_set"); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
396 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
397 te = lw_expr_copy(se -> value); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
398 debug_message(as, 200, " Value=%s", lw_expr_print(te)); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
399 as -> exportcheck = 1; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
400 as -> csect = s; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
401 lwasm_reduce_expr(as, te); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
402 as -> exportcheck = 0; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
403 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
404 debug_message(as, 200, " Value2=%s", lw_expr_print(te)); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
405 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
406 // don't output non-constant symbols |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
407 if (!lw_expr_istype(te, lw_expr_type_int)) |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
408 { |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
409 lw_expr_destroy(te); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
410 continue; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
411 } |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
412 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
413 writebytes(se -> symbol, strlen(se -> symbol), 1, of); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
414 if (se -> context >= 0) |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
415 { |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
416 writebytes("\x01", 1, 1, of); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
417 sprintf((char *)buf, "%d", se -> context); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
418 writebytes(buf, strlen((char *)buf), 1, of); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
419 } |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
420 // the "" is NOT an error |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
421 writebytes("", 1, 1, of); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
422 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
423 // write the address |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
424 buf[0] = (lw_expr_intval(te) >> 8) & 0xff; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
425 buf[1] = lw_expr_intval(te) & 0xff; |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
426 writebytes(buf, 2, 1, of); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
427 lw_expr_destroy(te); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
428 } |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
429 write_code_obj_auxsym(as, of, s, se2 -> right); |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
430 } |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
431 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
432 void write_code_obj(asmstate_t *as, FILE *of) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
433 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
434 line_t *l; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
435 sectiontab_t *s; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
436 reloctab_t *re; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
437 exportlist_t *ex; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
438 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
439 int i; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
440 unsigned char buf[16]; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
441 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
442 // output the magic number and file header |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
443 // the 8 is NOT an error |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
444 writebytes("LWOBJ16", 8, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
445 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
446 // run through the entire system and build the byte streams for each |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
447 // section; at the same time, generate a list of "local" symbols to |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
448 // output for each section |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
449 // NOTE: for "local" symbols, we will append \x01 and the ascii string |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
450 // of the context identifier (so sym in context 1 would be "sym\x011" |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
451 // we can do this because the linker can handle symbols with any |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
452 // character other than NUL. |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
453 // also we will generate a list of incomplete references for each |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
454 // section along with the actual definition that will be output |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
455 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
456 // once all this information is generated, we will output each section |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
457 // to the file |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
458 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
459 // NOTE: we build everything in memory then output it because the |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
460 // assembler accepts multiple instances of the same section but the |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
461 // linker expects only one instance of each section in the object file |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
462 // so we need to collect all the various pieces of a section together |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
463 // (also, the assembler treated multiple instances of the same section |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
464 // as continuations of previous sections so we would need to collect |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
465 // them together anyway. |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
466 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
467 for (l = as -> line_head; l; l = l -> next) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
468 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
469 if (l -> csect) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
470 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
471 // we're in a section - need to output some bytes |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
472 if (l -> outputl > 0) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
473 for (i = 0; i < l -> outputl; i++) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
474 write_code_obj_sbadd(l -> csect, l -> output[i]); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
475 else if (l -> outputl == 0 || l -> outputl == -1) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
476 for (i = 0; i < l -> len; i++) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
477 write_code_obj_sbadd(l -> csect, 0); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
478 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
479 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
480 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
481 // run through the sections |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
482 for (s = as -> sections; s; s = s -> next) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
483 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
484 // write the name |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
485 writebytes(s -> name, strlen(s -> name) + 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
486 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
487 // write the flags |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
488 if (s -> flags & section_flag_bss) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
489 writebytes("\x01", 1, 1, of); |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
490 if (s -> flags & section_flag_constant) |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
491 writebytes("\x02", 1, 1, of); |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
492 |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
493 // indicate end of flags - the "" is NOT an error |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
494 writebytes("", 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
495 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
496 // now the local symbols |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
497 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
498 // a symbol for section base address |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
499 if ((s -> flags & section_flag_constant) == 0) |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
500 { |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
501 writebytes("\x02", 1, 1, of); |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
502 writebytes(s -> name, strlen(s -> name) + 1, 1, of); |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
503 // address 0; "\0" is not an error |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
504 writebytes("\0", 2, 1, of); |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
505 } |
195
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
506 |
17bd59f045af
Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents:
156
diff
changeset
|
507 write_code_obj_auxsym(as, of, s, as -> symtab.head); |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
508 // flag end of local symbol table - "" is NOT an error |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
509 writebytes("", 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
510 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
511 // now the exports -- FIXME |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
512 for (ex = as -> exportlist; ex; ex = ex -> next) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
513 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
514 int eval; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
515 lw_expr_t te; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
516 line_t tl; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
517 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
518 if (ex -> se == NULL) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
519 continue; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
520 if (ex -> se -> section != s) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
521 continue; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
522 te = lw_expr_copy(ex -> se -> value); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
523 as -> csect = ex -> se -> section; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
524 as -> exportcheck = 1; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
525 tl.as = as; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
526 as -> cl = &tl; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
527 lwasm_reduce_expr(as, te); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
528 as -> exportcheck = 0; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
529 as -> cl = NULL; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
530 if (!lw_expr_istype(te, lw_expr_type_int)) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
531 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
532 lw_expr_destroy(te); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
533 continue; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
534 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
535 eval = lw_expr_intval(te); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
536 lw_expr_destroy(te); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
537 writebytes(ex -> symbol, strlen(ex -> symbol) + 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
538 buf[0] = (eval >> 8) & 0xff; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
539 buf[1] = eval & 0xff; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
540 writebytes(buf, 2, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
541 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
542 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
543 // flag end of exported symbols - "" is NOT an error |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
544 writebytes("", 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
545 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
546 // FIXME - relocation table |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
547 for (re = s -> reloctab; re; re = re -> next) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
548 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
549 int offset; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
550 lw_expr_t te; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
551 line_t tl; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
552 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
553 tl.as = as; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
554 as -> cl = &tl; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
555 as -> csect = s; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
556 as -> exportcheck = 1; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
557 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
558 if (re -> expr == NULL) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
559 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
560 // this is an error but we'll simply ignore it |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
561 // and not output this expression |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
562 continue; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
563 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
564 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
565 // work through each term in the expression and output |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
566 // the proper equivalent to the object file |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
567 if (re -> size == 1) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
568 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
569 // flag an 8 bit relocation (low 8 bits will be used) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
570 buf[0] = 0xFF; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
571 buf[1] = 0x01; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
572 writebytes(buf, 2, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
573 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
574 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
575 te = lw_expr_copy(re -> offset); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
576 lwasm_reduce_expr(as, te); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
577 if (!lw_expr_istype(te, lw_expr_type_int)) |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
578 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
579 lw_expr_destroy(te); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
580 continue; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
581 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
582 offset = lw_expr_intval(te); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
583 lw_expr_destroy(te); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
584 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
585 // output expression |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
586 lw_expr_testterms(re -> expr, write_code_obj_expraux, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
587 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
588 // flag end of expressions |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
589 writebytes("", 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
590 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
591 // write the offset |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
592 buf[0] = (offset >> 8) & 0xff; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
593 buf[1] = offset & 0xff; |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
594 writebytes(buf, 2, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
595 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
596 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
597 // flag end of incomplete references list |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
598 writebytes("", 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
599 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
600 // now blast out the code |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
601 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
602 // length |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
603 if (s -> flags & section_flag_constant) |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
604 { |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
605 buf[0] = 0; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
606 buf[1] = 0; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
607 } |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
608 else |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
609 { |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
610 buf[0] = s -> oblen >> 8 & 0xff; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
611 buf[1] = s -> oblen & 0xff; |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
|
612 } |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
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613 writebytes(buf, 2, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
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614 |
156
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
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615 |
fc8386b13399
Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents:
127
diff
changeset
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616 if (!(s -> flags & section_flag_bss) && !(s -> flags & section_flag_constant)) |
0
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
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617 { |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
618 writebytes(s -> obytes, s -> oblen, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
619 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
620 } |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
621 |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
622 // flag no more sections |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
623 // the "" is NOT an error |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
624 writebytes("", 1, 1, of); |
2c24602be78f
Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff
changeset
|
625 } |