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Make byte overflow detection for 8 bit immediate not fail with COM operator This is a horrible hack. Add a quick and dirty context to expression parsing so that it knows whether an 8 bit or 16 bit complement is required. The 8 bit complement will just discard anything above bit 7. When returning an operator back with lwasm_whichop(), the result will still be "COM" which should allow other things to keep working as they already do. This does prevent byte overflows when the complement operator is used, however, and since those were introduced, there were problems building Nitros9 among other things. This fix allows Nitros9 to build again.
author William Astle <lost@l-w.ca>
date Tue, 02 Jun 2015 20:58:14 -0600
parents 3f8abaac214c
children c6d2a1f54e0c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 lwasm.h
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3
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4 Copyright © 2010 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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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 #ifdef _MSC_VER
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26 #include "lw_win.h" // windows build
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27 #endif
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28
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29 #include <lw_expr.h>
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30 #include <lw_stringlist.h>
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31 #include <lw_stack.h>
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32 #include <lw_version.h>
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34 // these are allowed chars BELOW 0x80 for symbols
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35 // first is symbol start chars, second is anywhere in symbol
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36 #define SSYMCHARS "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_@$"
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37 #define SYMCHARS SSYMCHARS ".?0123456789"
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38
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39 typedef struct asmstate_s asmstate_t;
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41 enum
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42 {
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43 lwasm_expr_linelen = 1, // length of ref'd line
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44 lwasm_expr_lineaddr = 2, // addr of ref'd line
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45 lwasm_expr_nextbp = 3, // next branch point
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46 lwasm_expr_prevbp = 4, // previous branch point
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47 lwasm_expr_syment = 5, // symbol table entry
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48 lwasm_expr_import = 6, // symbol import entry
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49 lwasm_expr_secbase = 7, // section base address
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50 lwasm_expr_linedaddr = 8, // data address of the line
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51 lwasm_expr_linedlen = 9 // data length of the line
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52 };
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54 enum lwasm_output_e
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55 {
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56 OUTPUT_DECB = 0, // DECB multirecord format
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57 OUTPUT_RAW, // raw sequence of bytes
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58 OUTPUT_OBJ, // proprietary object file format
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59 OUTPUT_RAWREL, // raw bytes where ORG causes a SEEK in the file
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60 OUTPUT_OS9, // os9 module target
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61 OUTPUT_SREC, // motorola SREC format
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62 OUTPUT_IHEX, // intel hex format
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63 OUTPUT_HEX // generic hexadecimal format
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64 };
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66 enum lwasm_target_e
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67 {
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68 TARGET_6309 = 0, // target 6309 CPU
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69 TARGET_6809 // target 6809 CPU (no 6309 ops)
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70 };
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71
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72 enum lwasm_flags_e
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73 {
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74 FLAG_LIST = 0x0001,
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75 FLAG_DEPEND = 0x0002,
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76 FLAG_SYMBOLS = 0x004,
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77 FLAG_DEPENDNOERR = 0x0008,
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78 FLAG_UNICORNS = 0x0010,
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79 FLAG_MAP = 0x0020,
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80 FLAG_SYMBOLS_NOLOCALS = 0x0040,
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81 FLAG_NONE = 0
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82 };
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83
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84 enum lwasm_pragmas_e
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85 {
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86 PRAGMA_NONE = 0, // no pragmas in effect
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87 PRAGMA_DOLLARNOTLOCAL = 0x0001, // dollar sign does not make a symbol local
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88 PRAGMA_NOINDEX0TONONE = 0x0002, // do not change implicit 0,R to ,R
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89 PRAGMA_UNDEFEXTERN = 0x0004, // undefined symbols are considered to be external
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90 PRAGMA_CESCAPES = 0x0008, // allow C style escapes in fcc, fcs, fcn, etc.
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91 PRAGMA_IMPORTUNDEFEXPORT = 0x0010, // imports symbol if undefined upon export
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92 PRAGMA_PCASPCR = 0x0020, // treats ,PC as ,PCR instead of constant offset
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93 PRAGMA_SHADOW = 0x0040, // allow macros to shadow builtin operations
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94 PRAGMA_NOLIST = 0x0080, // don't show line in listing
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95 PRAGMA_AUTOBRANCHLENGTH = 0x0100, // automatically select proper length for relative branches
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96 PRAGMA_EXPORT = 0x0200, // export symbols by default, unless local
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97 PRAGMA_SYMBOLNOCASE = 0x400, // symbols defined under this pragma are matched case insensitively
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98 PRAGMA_CONDUNDEFZERO = 0x800, // treat undefined symbols as zero in conditionals during pass 1
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99 PRAGMA_6800COMPAT = 0x1000, // enable 6800 compatibility opcodes
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100 PRAGMA_FORWARDREFMAX = 0x2000 // force incomplete references on pass 1 to maximum mode
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101 };
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102
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103
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104 enum
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105 {
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106 section_flag_bss = 1, // BSS section
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107 section_flag_constant = 2, // constants - no base offset
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108 section_flag_none = 0 // no flags
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109 };
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110
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111 typedef struct reloctab_s reloctab_t;
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112 struct reloctab_s
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113 {
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114 lw_expr_t offset; // offset of relocation
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115 int size; // size of relocation
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116 lw_expr_t expr; // relocation expression
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117 reloctab_t *next;
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118 };
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119
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120 typedef struct sectiontab_s sectiontab_t;
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121 struct sectiontab_s
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122 {
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123 char *name; // section name
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124 int flags; // section flags;
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125 lw_expr_t offset; // offset for next instance
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126 int oblen; // size of section output
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127 int obsize; // size of output buffer
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128 unsigned char *obytes; // output buffer
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129 reloctab_t *reloctab; // table of relocations
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130 sectiontab_t *next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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131 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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132
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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133 typedef struct lwasm_error_s lwasm_error_t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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134 struct lwasm_error_s
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 char *mess; // actual error message
226
7c2c2239ec9c Make unicorns grok errors and warnings.
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parents: 223
diff changeset
137 int charpos; // character position on line where parsing stopped
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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138 lwasm_error_t *next; // ptr to next error
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
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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141 struct line_expr_s
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diff changeset
142 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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143 lw_expr_t expr;
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144 int id;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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145 struct line_expr_s *next;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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146 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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147
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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148 typedef struct line_s line_t;
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149
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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150 typedef struct exportlist_s exportlist_t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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151 struct exportlist_s
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
152 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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153 char *symbol; // symbol to export
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
154 struct symtabe *se; // symbol table entry
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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155 line_t *line; // line the export is on
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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156 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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157 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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158
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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159 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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160 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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diff changeset
161 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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162 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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163 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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164 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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165
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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166 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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diff changeset
167 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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168 lw_expr_t addr; // assembly address of the line
142
697bc543368c Implement distinction between . and * for OS9 modules
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diff changeset
169 lw_expr_t daddr; // data address of the line (os9 only)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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170 int len; // the "size" this line occupies (address space wise) (-1 if unknown)
142
697bc543368c Implement distinction between . and * for OS9 modules
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171 int dlen; // the data "size" this line occupies (-1 if unknown)
241
d0e9dbe9afbe Add new heuristic for resolving instruction sizes.
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parents: 226
diff changeset
172 int minlen; // minimum length
d0e9dbe9afbe Add new heuristic for resolving instruction sizes.
William Astle <lost@l-w.ca>
parents: 226
diff changeset
173 int maxlen; // maximum length
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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174 int insn; // number of insn in insn table
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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175 int symset; // set if the line symbol was consumed by the instruction
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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176 char *sym; // symbol, if any, on the line
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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177 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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178 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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179 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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180 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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181 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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182 lwasm_error_t *warn; // 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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183 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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diff changeset
184 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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185 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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186 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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187 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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188 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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diff changeset
189 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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190 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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diff changeset
191 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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192 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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193 int pragmas; // pragmas in effect for the line
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194 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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195 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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196 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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197 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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198 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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199 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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200 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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201 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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202 struct symtabe *dptr; // symbol value to display
49
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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diff changeset
203
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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diff changeset
204 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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diff changeset
205 int noexpand_end; // end of a no-expand block
219
afd50d6b4113 Add --preprocess option
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parents: 211
diff changeset
206 int hideline; // set if we're going to hide this line on output
0
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207 };
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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diff changeset
209 enum
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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210 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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211 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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212 symbol_flag_nocheck = 2, // do not check symbol characters
81
428068681cbf Added nolist pragma to suppress listing output of non-code generating lines
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parents: 73
diff changeset
213 symbol_flag_nolist = 4, // no not show symbol in symbol table
207
07e1fac76321 Added pragma to allow non case sensitive symbols
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parents: 206
diff changeset
214 symbol_flag_nocase = 8, // do not match case of symbol
0
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215 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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216 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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217
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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218 struct symtabe
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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219 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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220 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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diff changeset
221 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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diff changeset
222 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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223 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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diff changeset
224 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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225 lw_expr_t value; // symbol value
195
17bd59f045af Changed symbol table to use a binary tree.
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parents: 156
diff changeset
226 struct symtabe *left; // left subtree pointer
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 156
diff changeset
227 struct symtabe *right; // right subtree pointer
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 156
diff changeset
228 struct symtabe *nextver; // next lower version
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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229 };
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 typedef struct
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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232 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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233 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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234 } symtab_t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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235
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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236 typedef struct macrotab_s macrotab_t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
237 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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diff changeset
238 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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239 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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diff changeset
240 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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diff changeset
241 int numlines; // number lines in macro
49
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
lost@l-w.ca
parents: 2
diff changeset
242 int flags; // flags for the macro
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
243 macrotab_t *next; // next macro in list
222
03f7192fcd20 Add --unicorns option for IDE integration
William Astle <lost@l-w.ca>
parents: 219
diff changeset
244 line_t *definedat; // the line where the macro definition starts
0
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245 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
246
49
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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diff changeset
247 enum
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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diff changeset
248 {
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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diff changeset
249 macro_noexpand = 1 // set to not expland the macro by default in listing
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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diff changeset
250 };
bd8b3fbd1e28 Added ability to flag macros as "noexpand" so they are not expanded in the listing
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parents: 2
diff changeset
251
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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252 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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253 typedef struct structtab_field_s structtab_field_t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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254
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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255 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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256 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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257 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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258 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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259 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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260 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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261 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
262
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
263 struct structtab_s
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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264 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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265 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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266 int size; // number of bytes taken by struct
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267 structtab_field_t *fields; // fields in the structure
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268 structtab_t *next; // next structure
223
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269 line_t *definedat; // line where structure is defined
0
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270 };
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271
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272 struct asmstate_s
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273 {
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274 int output_format; // output format
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275 int target; // assembly target
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276 int debug_level; // level of debugging requested
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277 FILE *debug_file; // FILE * to output debug messages to
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278 int flags; // assembly flags
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279 int pragmas; // pragmas currently in effect
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280 int errorcount; // number of errors encountered
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281 int warningcount; // number of warnings issued
0
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282 int inmacro; // are we in a macro?
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283 int instruct; // are w in a structure?
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284 int skipcond; // skipping a condition?
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285 int skipcount; // depth of "skipping"
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286 int skipmacro; // are we skipping in a macro?
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287 int endseen; // have we seen an "end" pseudo?
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288 int execaddr; // address from "end"
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289 int inmod; // inside an os9 module?
210
5d969517db74 Added condundefzero pragma
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290 int undefzero; // used for handling "condundefzero"
211
6f2e18f1fe67 Improve autobranchlength pragma
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291 int pretendmax; // set if we need to pretend the instruction is max length
0
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292 unsigned char crc[3]; // crc accumulator
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293 int badsymerr; // throw error on undef sym if set
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294
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295 line_t *line_head; // start of lines list
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296 line_t *line_tail; // tail of lines list
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297
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298 line_t *cl; // current line pointer
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299
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300 sectiontab_t *csect; // current section
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301
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302 int context; // the current "context"
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303 int nextcontext; // the next available context
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304
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305 symtab_t symtab; // meta data for the symbol table
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306 macrotab_t *macros; // macro table
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307 sectiontab_t *sections; // section table
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308 exportlist_t *exportlist; // list of exported symbols
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309 importlist_t *importlist; // list of imported symbols
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310 char *list_file; // name of file to list to
365
3f8abaac214c Add map file output and option to suppress local symbols in listings
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311 char *map_file; // name of map file
0
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312 char *output_file; // output file name
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313 lw_stringlist_t input_files; // files to assemble
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314 void *input_data; // opaque data used by the input system
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315 lw_stringlist_t include_list; // include paths
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316 lw_stack_t file_dir; // stack of the "current file" dir
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317 lw_stack_t includelist;
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318
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319 structtab_t *structs; // defined structures
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320 structtab_t *cstruct; // current structure
61
ccaecdff3fc2 Make structure definitions not affect current assembly address and fix up cosmetic offset display in listings
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321 lw_expr_t savedaddr; // old address counter before struct started
0
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322 int exportcheck; // set if we need to collapse out the section base to 0
70
ceab04fd2969 Fixed premature installation of external reference under UNDEFEXTERN pragma; should not resolve to external references until after the initial parsing pass
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323 int passno; // set to the current pass number
219
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324 int preprocess; // set if we are prepocessing
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325 int fileerr; // flags error opening file
366
433dbc18fb41 Make byte overflow detection for 8 bit immediate not fail with COM operator
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diff changeset
326 int exprwidth; // the bit width of the expression being evaluated
0
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327 };
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328
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329 #ifndef ___symbol_c_seen___
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330
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331 extern struct symtabe *register_symbol(asmstate_t *as, line_t *cl, char *sym, lw_expr_t value, int flags);
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332 extern struct symtabe *lookup_symbol(asmstate_t *as, line_t *cl, char *sym);
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333
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334 #endif
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335
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336 #ifndef ___lwasm_c_seen___
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337
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338 extern void lwasm_register_error(asmstate_t *as, line_t *cl, const char *msg, ...);
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339 extern void lwasm_register_warning(asmstate_t *as, line_t *cl, const char *msg, ...);
226
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340
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341 extern void lwasm_register_error_n(asmstate_t *as, line_t *cl, char *iptr, const char *msg, ...);
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342 extern void lwasm_register_warning_n(asmstate_t *as, line_t *cl, char *iptr, const char *msg, ...);
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343
0
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344 extern int lwasm_next_context(asmstate_t *as);
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345 extern void lwasm_emit(line_t *cl, int byte);
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346 extern void lwasm_emitop(line_t *cl, int opc);
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347
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348 extern void lwasm_save_expr(line_t *cl, int id, lw_expr_t expr);
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349 extern lw_expr_t lwasm_fetch_expr(line_t *cl, int id);
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350 extern lw_expr_t lwasm_parse_expr(asmstate_t *as, char **p);
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351 extern int lwasm_emitexpr(line_t *cl, lw_expr_t expr, int s);
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352
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353 extern void skip_operand(char **p);
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354
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355 extern int lwasm_lookupreg2(const char *rlist, char **p);
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356 extern int lwasm_lookupreg3(const char *rlist, char **p);
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357
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358 extern void lwasm_show_errors(asmstate_t *as);
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359
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360 extern int lwasm_reduce_expr(asmstate_t *as, lw_expr_t expr);
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361
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
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362 extern lw_expr_t lwasm_parse_cond(asmstate_t *as, char **p);
7317fbe024af Clean up insane number of compiler warnings under -Wall
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363
241
d0e9dbe9afbe Add new heuristic for resolving instruction sizes.
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diff changeset
364 extern int lwasm_calculate_range(asmstate_t *as, lw_expr_t expr, int *min, int *max);
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365
336
30b2bad9b5eb Factor some code for simplifying lines so it can be reused
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366 extern void lwasm_reduce_line_exprs(line_t *cl);
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367
2
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368 #endif
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369
338
5d401d1eb3e9 Allow disabling debugging messages.
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370 #ifdef LWASM_NODEBUG
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371 #define debug_message(...)
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372 #define dump_state(...)
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373 #else
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374 extern void real_debug_message(asmstate_t *as, int level, const char *fmt, ...);
0
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375 extern void dump_state(asmstate_t *as);
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376
338
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377 #define debug_message(as,level,...) do { asmstate_t *ras = (as); int rlevel = (level); if (ras->debug_level >= rlevel) { real_debug_message(ras, rlevel, __VA_ARGS__); } } while (0)
5d401d1eb3e9 Allow disabling debugging messages.
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378 #endif
0
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379
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380 #define OPLEN(op) (((op)>0xFF)?2:1)
101
ed7f970f3688 Added --define= option to predfine a symbol for assembly
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381 #define CURPRAGMA(l,p) (((l) && ((l)->pragmas & (p))) ? 1 : 0)
0
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382
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383 #endif /* ___lwasm_h_seen___ */