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annotate lwlink/objdump.c @ 157:4682460aed00

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Correct bug with handling symbol resolution and constant section handling
author lost@l-w.ca
date Sun, 28 Aug 2011 11:45:38 -0600
parents fc8386b13399
children 346966cffeef
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
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1 /*
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2 objdump.c
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3 Copyright © 2009 William Astle
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4
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5 This file is part of LWLINK
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6
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7 LWLINK 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 A standalone program to dump an object file in a text form to stdout
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22
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23 */
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24 #include <stdio.h>
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25 #include <stdlib.h>
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26 #include <string.h>
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27
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28 #include <lw_alloc.h>
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29
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30 #ifdef HAVE_CONFIG_H
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31 #include "config.h"
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32 #endif
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33
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34 void read_lwobj16v0(unsigned char *filedata, long filesize);
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35 char *program_name;
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36
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37 char *string_cleanup(char *sym)
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38 {
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39 static char symbuf[4096];
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40 int optr = 0;
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41 while (*sym)
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42 {
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43 if (*sym < 33 || *sym > 126)
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44 {
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45 int c;
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46 symbuf[optr++] = '\\';
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47 c = *sym >> 4;
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48 c+= 48;
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49 if (c > 57)
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50 c += 7;
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51 symbuf[optr++] = c;
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52 c = *sym & 15;
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53 c += 48;
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54 if (c > 57)
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55 c += 7;
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56 symbuf[optr++] = c;
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57 }
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58 else if (*sym == '\\')
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59 {
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60 symbuf[optr++] = '\\';
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61 symbuf[optr++] = '\\';
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62 }
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63 else
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64 {
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65 symbuf[optr++] = *sym;
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66 }
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67 sym++;
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68 }
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69 symbuf[optr] = '\0';
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70 return symbuf;
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71 }
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72
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73 /*
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74 The logic of reading the entire file into memory is simple. All the symbol
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75 names in the file are NUL terminated strings and can be used directly without
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76 making additional copies.
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77 */
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78 int main(int argc, char **argv)
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79 {
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80 long size;
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81 FILE *f;
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82 long bread;
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83 unsigned char *filedata;
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84
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85 program_name = argv[0];
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86 if (argc != 2)
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87 {
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88 fprintf(stderr, "Must specify exactly one input file.\n");
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89 exit(1);
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90 }
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91
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92 f = fopen(argv[1], "rb");
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93 if (!f)
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94 {
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95 fprintf(stderr, "Can't open file %s:", argv[1]);
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96 perror("");
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97 exit(1);
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98 }
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99 fseek(f, 0, SEEK_END);
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100 size = ftell(f);
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101 rewind(f);
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102
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103 filedata = lw_alloc(size);
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104
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105 bread = fread(filedata, 1, size, f);
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106 if (bread < size)
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107 {
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108 fprintf(stderr, "Short read on file %s (%ld/%ld):", argv[1], bread, size);
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109 perror("");
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110 exit(1);
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111 }
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112
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113 fclose(f);
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114
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115 if (!memcmp(filedata, "LWOBJ16", 8))
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116 {
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117 // read v0 LWOBJ16 file
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118 read_lwobj16v0(filedata, size);
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119 }
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120 else
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121 {
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122 fprintf(stderr, "%s: unknown file format\n", argv[1]);
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123 exit(1);
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124 }
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125 exit(0);
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126 }
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127
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128 // this macro is used to bail out if we run off the end of the file data
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129 // while parsing - it keeps the code below cleaner
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130 #define NEXTBYTE() do { cc++; if (cc > filesize) { fprintf(stderr, "***invalid file format\n"); exit(1); } } while (0)
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131 // this macro is used to refer to the current byte in the stream
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132 #define CURBYTE() (filedata[cc < filesize ? cc : filesize - 1])
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133 // this one will leave the input pointer past the trailing NUL
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134 #define CURSTR() read_lwobj16v0_str(&cc, &filedata, filesize)
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135 unsigned char *read_lwobj16v0_str(long *cc1, unsigned char **filedata1, long filesize)
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136 {
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137 int cc = *cc1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
138 unsigned char *filedata = *filedata1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
139 unsigned char *fp;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
140 fp = &CURBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
141 while (CURBYTE())
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
142 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
143 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
144 *cc1 = cc;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
145 *filedata1 = filedata;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
146 return fp;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
147 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
148 // the function below can be switched to dealing with data coming from a
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
149 // source other than an in-memory byte pool by adjusting the input data
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
150 // in "fn" and the above two macros
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
151 void read_lwobj16v0(unsigned char *filedata, long filesize)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
152 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
153 unsigned char *fp;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
154 long cc;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
155 int val;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
156 int bss;
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 8
diff changeset
157 int 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
158
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
159 static char *opernames[] = {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
160 "?",
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
161 "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
162 "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
163 "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
164 "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
165 "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
166 "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
167 "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
168 "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
169 "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
170 "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
171 "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
172 "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
173 "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
174 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
175 static const int numopers = 13;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
176
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
177 // start reading *after* the magic number
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
178 cc = 8;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
179
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
180 while (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
181 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
182 bss = 0;
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 8
diff changeset
183 constant = 0;
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
184
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
185 // bail out if 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
186 if (!(CURBYTE()))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
187 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
188
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
189 fp = CURSTR();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
190
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
191 printf("SECTION %s\n", fp);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
192
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
193 // read 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
194 while (CURBYTE())
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
195 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
196 switch (CURBYTE())
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
197 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
198 case 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
199 printf(" FLAG: BSS\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
200 bss = 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
201 break;
156
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 8
diff changeset
202 case 0x02:
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 8
diff changeset
203 printf(" FLAG: CONSTANT\n");
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 8
diff changeset
204 constant = 1;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 8
diff changeset
205 break;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink
lost@l-w.ca
parents: 8
diff changeset
206
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
207 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
208 printf(" FLAG: %02X (unknown)\n", CURBYTE());
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
209 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
210 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
211 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
212 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
213 // skip NUL terminating flags
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
214 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
215
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
216 printf(" Local symbols:\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
217 // now parse the local symbol 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
218 while (CURBYTE())
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
219 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
220 fp = CURSTR();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
221
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
222 // fp is the symbol name
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
223 val = (CURBYTE()) << 8;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
224 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
225 val |= (CURBYTE());
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
226 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
227 // val is now the symbol value
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
228
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
229 printf(" %s=%04X\n", string_cleanup((char *)fp), val);
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
230
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
231 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
232 // skip terminating 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
233 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
234
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
235 printf(" Exported symbols\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
236
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
237 // now parse the exported symbol 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
238 while (CURBYTE())
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
239 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
240 fp = CURSTR();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
241
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
242 // fp is the symbol 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
243 val = (CURBYTE()) << 8;
2c24602be78f 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 NEXTBYTE();
2c24602be78f 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 val |= (CURBYTE());
2c24602be78f 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 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
247 // val is now the symbol value
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
248
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
249 printf(" %s=%04X\n", string_cleanup((char *)fp), val);
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
250 }
2c24602be78f 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 // skip terminating 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
252 NEXTBYTE();
2c24602be78f 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
2c24602be78f 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 // now parse the incomplete references and make a list 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
255 // external references that need resolution
2c24602be78f 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 printf(" Incomplete references\n");
2c24602be78f 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 while (CURBYTE())
2c24602be78f 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 printf(" (");
2c24602be78f 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 // parse the 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
261 while (CURBYTE())
2c24602be78f 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 {
2c24602be78f 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 int tt = CURBYTE();
2c24602be78f 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 NEXTBYTE();
2c24602be78f 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 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
266 {
2c24602be78f 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 case 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
268 // 16 bit integer
2c24602be78f 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 tt = CURBYTE() << 8;
2c24602be78f 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 NEXTBYTE();
2c24602be78f 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 tt |= CURBYTE();
2c24602be78f 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 NEXTBYTE();
2c24602be78f 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 // normalize for negatives...
2c24602be78f 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 if (tt > 0x7fff)
2c24602be78f 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 tt -= 0x10000;
2c24602be78f 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 printf(" I16=%d", 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
277 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
278
2c24602be78f 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 case 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
280 // external symbol reference
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
281 printf(" ES=%s", string_cleanup((char *)CURSTR()));
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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282 break;
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283
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284 case 0x03:
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285 // internal symbol reference
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
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286 printf(" IS=%s", string_cleanup((char *)CURSTR()));
0
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287 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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288
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289 case 0x04:
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290 // operator
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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291 if (CURBYTE() > 0 && CURBYTE() <= numopers)
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292 printf(" OP=%s", opernames[CURBYTE()]);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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293 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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294 printf(" OP=?");
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295 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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296 break;
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297
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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298 case 0x05:
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299 // section base reference (NULL internal reference is
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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300 // the section base address
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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301 printf(" SB");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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302 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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303
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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304 case 0xFF:
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305 // section flags
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306 printf(" FLAGS=%02X", CURBYTE());
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307 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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308 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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309
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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310 default:
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311 printf(" ERR");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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312 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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313 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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314 // skip the NUL
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315 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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316
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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317 // fetch the offset
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318 val = CURBYTE() << 8;
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319 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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320 val |= CURBYTE() & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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321 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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322 printf(" ) @ %04X\n", val);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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323 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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324 // skip the NUL terminating the relocations
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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325 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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326
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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327 // now set code location and size and verify that the file
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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328 // contains data going to the end of the code (if !SECTION_BSS)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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329 val = CURBYTE() << 8;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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330 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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331 val |= CURBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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332 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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333
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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334 printf(" CODE %04X bytes", val);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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335
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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336 // skip the code if we're not in a BSS section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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337 if (!bss)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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338 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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339 int i;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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340 for (i = 0; i < val; i++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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341 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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342 if (! (i % 16))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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343 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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344 printf("\n %04X ", i);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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345 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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346 printf("%02X", CURBYTE());
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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347 NEXTBYTE();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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348 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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349 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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350 printf("\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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351 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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352 }