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annotate lwlink/objdump.c @ 234:d389adbcc4ab

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Added section base and length symbols to lwlink Added the ability for a link script to define section base and section length symbols when linking. These symbols are searched for when an external reference is resolved before looking up any symbols in the various objects being linked. Also documented the new link script directives and added such directives to all default link scripts.
author William Astle <lost@l-w.ca>
date Fri, 10 Aug 2012 23:47:56 -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 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
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
parents:
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
parents:
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
parents:
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
parents:
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
parents:
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
parents:
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
parents:
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
parents:
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
parents:
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
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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;
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288
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289 case 0x04:
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290 // operator
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291 if (CURBYTE() > 0 && CURBYTE() <= numopers)
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292 printf(" OP=%s", opernames[CURBYTE()]);
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293 else
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294 printf(" OP=?");
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295 NEXTBYTE();
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296 break;
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297
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298 case 0x05:
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299 // section base reference (NULL internal reference is
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300 // the section base address
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301 printf(" SB");
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302 break;
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303
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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();
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308 break;
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309
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310 default:
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311 printf(" ERR");
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312 }
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313 }
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314 // skip the NUL
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315 NEXTBYTE();
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316
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317 // fetch the offset
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318 val = CURBYTE() << 8;
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319 NEXTBYTE();
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320 val |= CURBYTE() & 0xff;
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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
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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
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327 // now set code location and size and verify that the file
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328 // contains data going to the end of the code (if !SECTION_BSS)
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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
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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
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336 // skip the code if we're not in a BSS section
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337 if (!bss)
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338 {
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339 int i;
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340 for (i = 0; i < val; i++)
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341 {
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342 if (! (i % 16))
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343 {
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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 }
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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 }