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annotate lwasm/lwasm.h @ 53:cb4efc47ce9d

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Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
author lost@l-w.ca
date Tue, 05 Apr 2011 21:48:51 -0600
parents bd8b3fbd1e28
children ccaecdff3fc2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 lwasm.h
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3
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4 Copyright © 2010 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #ifndef ___lwasm_h_seen___
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23 #define ___lwasm_h_seen___
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24
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25 #include <lw_expr.h>
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26 #include <lw_stringlist.h>
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27 #include <lw_stack.h>
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28
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29
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30 // these are allowed chars BELOW 0x80 for symbols
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31 // first is symbol start chars, second is anywhere in symbol
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32 #define SSYMCHARS "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_@$"
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33 #define SYMCHARS SSYMCHARS ".?0123456789"
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34
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35 typedef struct asmstate_s asmstate_t;
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36
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37 enum
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38 {
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39 lwasm_expr_linelen = 1, // length of ref'd line
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40 lwasm_expr_lineaddr = 2, // addr of ref'd line
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41 lwasm_expr_nextbp = 3, // next branch point
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42 lwasm_expr_prevbp = 4, // previous branch point
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43 lwasm_expr_syment = 5, // symbol table entry
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44 lwasm_expr_import = 6, // symbol import entry
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45 lwasm_expr_secbase = 7 // section base address
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46 };
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47
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48 enum lwasm_output_e
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49 {
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50 OUTPUT_DECB = 0, // DECB multirecord format
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51 OUTPUT_RAW, // raw sequence of bytes
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52 OUTPUT_OBJ, // proprietary object file format
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53 OUTPUT_RAWREL, // raw bytes where ORG causes a SEEK in the file
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54 OUTPUT_OS9 // os9 module target
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55 };
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56
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57 enum lwasm_target_e
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58 {
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59 TARGET_6309 = 0, // target 6309 CPU
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60 TARGET_6809 // target 6809 CPU (no 6309 ops)
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61 };
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62
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63 enum lwasm_flags_e
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64 {
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65 FLAG_LIST = 0x0001,
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66 FLAG_DEPEND = 0x0002,
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67 FLAG_SYMBOLS = 0x004,
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68 FLAG_NONE = 0
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69 };
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70
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71 enum lwasm_pragmas_e
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72 {
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73 PRAGMA_NONE = 0, // no pragmas in effect
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74 PRAGMA_DOLLARNOTLOCAL = 0x0001, // dollar sign does not make a symbol local
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75 PRAGMA_NOINDEX0TONONE = 0x0002, // do not change implicit 0,R to ,R
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76 PRAGMA_UNDEFEXTERN = 0x0004, // undefined symbols are considered to be external
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77 PRAGMA_CESCAPES = 0x0008, // allow C style escapes in fcc, fcs, fcn, etc.
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78 PRAGMA_IMPORTUNDEFEXPORT = 0x0010, // imports symbol if undefined upon export
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79 PRAGMA_PCASPCR = 0x0020, // treats ,PC as ,PCR instead of constant offset
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80 PRAGMA_SHADOW = 0x0040 // allow macros to shadow builtin operations
0
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81 };
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82
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83
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84 enum
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85 {
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86 section_flag_bss = 1, // BSS section
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87 section_flag_none = 0 // no flags
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88 };
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89
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90 typedef struct reloctab_s reloctab_t;
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91 struct reloctab_s
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92 {
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93 lw_expr_t offset; // offset of relocation
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94 int size; // size of relocation
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95 lw_expr_t expr; // relocation expression
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96 reloctab_t *next;
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97 };
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98
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99 typedef struct sectiontab_s sectiontab_t;
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100 struct sectiontab_s
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101 {
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102 char *name; // section name
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103 int flags; // section flags;
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104 lw_expr_t offset; // offset for next instance
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105 int oblen; // size of section output
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106 int obsize; // size of output buffer
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107 unsigned char *obytes; // output buffer
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108 reloctab_t *reloctab; // table of relocations
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109 sectiontab_t *next;
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110 };
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111
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112 typedef struct lwasm_error_s lwasm_error_t;
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113 struct lwasm_error_s
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114 {
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115 char *mess; // actual error message
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116 lwasm_error_t *next; // ptr to next error
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117 };
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118
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119 struct line_expr_s
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120 {
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121 lw_expr_t expr;
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122 int id;
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123 struct line_expr_s *next;
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124 };
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125
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126 typedef struct line_s line_t;
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127
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128 typedef struct exportlist_s exportlist_t;
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129 struct exportlist_s
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130 {
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131 char *symbol; // symbol to export
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132 struct symtabe *se; // symbol table entry
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133 line_t *line; // line the export is on
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134 exportlist_t *next; // next in the export list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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135 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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136
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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137 typedef struct importlist_s importlist_t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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138 struct importlist_s
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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139 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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140 char *symbol; // symbol to import
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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141 importlist_t *next; // next in the import list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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142 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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143
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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144 struct line_s
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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145 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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146 lw_expr_t addr; // assembly address of the line
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147 int len; // the "size" this line occupies (address space wise) (-1 if unknown)
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148 int insn; // number of insn in insn table
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149 int symset; // set if the line symbol was consumed by the instruction
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150 char *sym; // symbol, if any, on the line
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151 unsigned char *output; // output bytes
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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152 int outputl; // size of output
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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153 int outputbl; // size of output buffer
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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154 int dpval; // direct page value
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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155 lwasm_error_t *err; // list of errors
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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156 lwasm_error_t *warn; // list of errors
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157 line_t *prev; // previous line
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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158 line_t *next; // next line
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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159 int inmod; // inside a module?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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160 sectiontab_t *csect; // which section are we in?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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161 struct line_expr_s *exprs; // expressions used during parsing
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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162 char *lstr; // string passed forward
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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163 int pb; // pass forward post byte
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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164 int lint; // pass forward integer
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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165 int lint2; // another pass forward integer
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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166 asmstate_t *as; // assembler state data ptr
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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167 int pragmas; // pragmas in effect for the line
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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168 int context; // the symbol context number
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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169 char *ltext; // line number
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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170 char *linespec; // line spec
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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171 int lineno; // line number
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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172 int soff; // struct offset (for listings)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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173 int dshow; // data value to show (for listings)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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174 int dsize; // set to 1 for 8 bit dshow value
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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175 int isbrpt; // set to 1 if this line is a branch point
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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176 struct symtabe *dptr; // symbol value to display
49
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177
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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178 int noexpand_start; // start of a no-expand block
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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179 int noexpand_end; // end of a no-expand block
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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180
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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181 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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182
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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183 enum
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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184 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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185 symbol_flag_set = 1, // symbol was used with "set"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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186 symbol_flag_nocheck = 2, // do not check symbol characters
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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187 symbol_flag_none = 0 // no flags
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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188 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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189
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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190 struct symtabe
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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191 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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192 char *symbol; // the name of the symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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193 int context; // symbol context (-1 for global)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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194 int version; // version of the symbol (for "set")
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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195 int flags; // flags for the symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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196 sectiontab_t *section; // section the symbol is defined in
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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197 lw_expr_t value; // symbol value
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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198 struct symtabe *next; // next symbol in the table
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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199 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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200
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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201 typedef struct
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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202 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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203 struct symtabe *head; // start of symbol table
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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204 } symtab_t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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205
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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206 typedef struct macrotab_s macrotab_t;
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207 struct macrotab_s
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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208 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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209 char *name; // name of macro
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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210 char **lines; // macro lines
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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211 int numlines; // number lines in macro
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212 int flags; // flags for the macro
0
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213 macrotab_t *next; // next macro in list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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214 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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215
49
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216 enum
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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217 {
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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218 macro_noexpand = 1 // set to not expland the macro by default in listing
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219 };
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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220
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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221 typedef struct structtab_s structtab_t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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222 typedef struct structtab_field_s structtab_field_t;
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223
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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224 struct structtab_field_s
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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225 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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226 char *name; // structure field name - NULL for anonymous
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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227 int size; // structure field size
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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228 structtab_t *substruct; // sub structure if there is one
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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229 structtab_field_t *next; // next field entry
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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230 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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231
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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232 struct structtab_s
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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233 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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234 char *name; // name of structure
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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235 int size; // number of bytes taken by struct
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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236 structtab_field_t *fields; // fields in the structure
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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237 structtab_t *next; // next structure
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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238 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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239
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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240 struct asmstate_s
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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241 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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242 int output_format; // output format
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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243 int target; // assembly target
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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244 int debug_level; // level of debugging requested
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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245 FILE *debug_file; // FILE * to output debug messages to
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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246 int flags; // assembly flags
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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247 int pragmas; // pragmas currently in effect
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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248 int errorcount; // number of errors encountered
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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249 int inmacro; // are we in a macro?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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250 int instruct; // are w in a structure?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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251 int skipcond; // skipping a condition?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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252 int skipcount; // depth of "skipping"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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253 int skipmacro; // are we skipping in a macro?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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254 int endseen; // have we seen an "end" pseudo?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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255 int execaddr; // address from "end"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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256 int inmod; // inside an os9 module?
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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257 unsigned char crc[3]; // crc accumulator
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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258 int badsymerr; // throw error on undef sym if set
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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259
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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260 line_t *line_head; // start of lines list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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261 line_t *line_tail; // tail of lines list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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262
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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263 line_t *cl; // current line pointer
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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264
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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265 sectiontab_t *csect; // current section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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266
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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267 int context; // the current "context"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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268 int nextcontext; // the next available context
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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269
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270 symtab_t symtab; // meta data for the symbol table
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271 macrotab_t *macros; // macro table
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272 sectiontab_t *sections; // section table
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273 exportlist_t *exportlist; // list of exported symbols
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274 importlist_t *importlist; // list of imported symbols
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275 char *list_file; // name of file to list to
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276 char *output_file; // output file name
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277 lw_stringlist_t input_files; // files to assemble
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278 void *input_data; // opaque data used by the input system
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279 lw_stringlist_t include_list; // include paths
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280 lw_stack_t file_dir; // stack of the "current file" dir
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281 lw_stack_t includelist;
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282
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283 structtab_t *structs; // defined structures
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284 structtab_t *cstruct; // current structure
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285
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286 int exportcheck; // set if we need to collapse out the section base to 0
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287 };
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288
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289 #ifndef ___symbol_c_seen___
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290
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291 extern struct symtabe *register_symbol(asmstate_t *as, line_t *cl, char *sym, lw_expr_t value, int flags);
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292 extern struct symtabe *lookup_symbol(asmstate_t *as, line_t *cl, char *sym);
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293
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294 #endif
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295
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296 #ifndef ___lwasm_c_seen___
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297
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298 extern void lwasm_register_error(asmstate_t *as, line_t *cl, const char *msg, ...);
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299 extern void lwasm_register_warning(asmstate_t *as, line_t *cl, const char *msg, ...);
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300 extern int lwasm_next_context(asmstate_t *as);
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301 extern void lwasm_emit(line_t *cl, int byte);
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302 extern void lwasm_emitop(line_t *cl, int opc);
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303
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304 extern void lwasm_save_expr(line_t *cl, int id, lw_expr_t expr);
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305 extern lw_expr_t lwasm_fetch_expr(line_t *cl, int id);
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306 extern lw_expr_t lwasm_parse_expr(asmstate_t *as, char **p);
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307 extern int lwasm_emitexpr(line_t *cl, lw_expr_t expr, int s);
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308
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309 extern void skip_operand(char **p);
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310
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311 extern int lwasm_lookupreg2(const char *rlist, char **p);
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312 extern int lwasm_lookupreg3(const char *rlist, char **p);
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313
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314 extern void lwasm_show_errors(asmstate_t *as);
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315
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316 extern int lwasm_reduce_expr(asmstate_t *as, lw_expr_t expr);
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317
2
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318 extern lw_expr_t lwasm_parse_cond(asmstate_t *as, char **p);
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319
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320 #endif
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321
0
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322 extern void debug_message(asmstate_t *as, int level, const char *fmt, ...);
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323 extern void dump_state(asmstate_t *as);
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324
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325
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326 #define OPLEN(op) (((op)>0xFF)?2:1)
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327 #define CURPRAGMA(l,p) (((l)->pragmas & (p)) ? 1 : 0)
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328
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329 #endif /* ___lwasm_h_seen___ */