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annotate lwasm/lwasm.c @ 382:eacdae8a1575

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Various bugfixes
author lost@starbug
date Sat, 15 May 2010 13:39:21 -0600
parents 1624a36f12a3
children cf8c92d70eb1
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1 /*
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2 lwasm.c
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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 #define ___lwasm_c_seen___
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23
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24 #include <config.h>
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25
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26 #include <stdio.h>
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27 #include <stdarg.h>
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28 #include <string.h>
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29
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30 #include <lw_expr.h>
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31 #include <lw_alloc.h>
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32 #include <lw_string.h>
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33
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34 #include "lwasm.h"
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35
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36 void lwasm_register_error(asmstate_t *as, line_t *l, const char *msg, ...);
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37
375
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38 int lwasm_expr_exportable(asmstate_t *as, lw_expr_t expr)
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39 {
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40 return 0;
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41 }
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42
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43 int lwasm_expr_exportval(asmstate_t *as, lw_expr_t expr)
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44 {
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45 return 0;
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46 }
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47
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48 lw_expr_t lwasm_evaluate_var(char *var, void *priv)
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49 {
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50 asmstate_t *as = (asmstate_t *)priv;
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51 lw_expr_t e;
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52 importlist_t *im;
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53 struct symtabe *s;
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54
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55 s = lookup_symbol(as, as -> cl, var);
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56 if (s)
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57 {
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58 e = lw_expr_build(lw_expr_type_special, lwasm_expr_syment, s);
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59 return e;
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60 }
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61
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62 // undefined here is undefied unless output is object
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63 if (as -> output_format != OUTPUT_OBJ)
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64 goto nomatch;
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65
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66 // check for import
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67 for (im = as -> importlist; im; im = im -> next)
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68 {
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69 if (!strcmp(im -> symbol, var))
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70 break;
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71 }
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72
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73 // check for "undefined" to import automatically
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74 if (!im && CURPRAGMA(as -> cl, PRAGMA_UNDEFEXTERN))
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75 {
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76 im = lw_alloc(sizeof(importlist_t));
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77 im -> symbol = lw_strdup(var);
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78 im -> next = as -> importlist;
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79 as -> importlist = im;
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80 }
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81
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82 if (!im)
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83 goto nomatch;
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84
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85 e = lw_expr_build(lw_expr_type_special, lwasm_expr_import, im);
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86 return e;
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87
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88 nomatch:
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89 if (as -> badsymerr)
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90 {
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91 lwasm_register_error(as, as -> cl, "Undefined symbol %s", var);
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92 }
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93 return NULL;
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94 }
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95
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96 lw_expr_t lwasm_evaluate_special(int t, void *ptr, void *priv)
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97 {
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98 switch (t)
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99 {
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100 case lwasm_expr_secbase:
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101 {
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102 line_t *cl = ptr;
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103 if (cl -> as -> exportcheck && ptr == cl -> as -> csect)
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104 return lw_expr_build(lw_expr_type_int, 0);
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105 return NULL;
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106 }
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107
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108 case lwasm_expr_linelen:
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109 {
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110 line_t *cl = ptr;
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111 if (cl -> len == -1)
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112 return NULL;
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113 return lw_expr_build(lw_expr_type_int, cl -> len);
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114 }
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115 break;
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116
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117 case lwasm_expr_lineaddr:
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118 {
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119 line_t *cl = ptr;
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120 if (cl -> addr)
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121 return lw_expr_copy(cl -> addr);
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122 else
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123 return NULL;
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124 }
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125
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126 case lwasm_expr_syment:
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127 {
371
9c24d9d485b9 Much bugfixing
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128 struct symtabe *sym = ptr;
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129 return lw_expr_copy(sym -> value);
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130 }
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131
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132 case lwasm_expr_import:
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133 {
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134 return NULL;
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135 }
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136
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137 case lwasm_expr_nextbp:
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138 {
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139 return NULL;
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140 }
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141
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142 case lwasm_expr_prevbp:
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143 {
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144 return NULL;
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145 }
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146 }
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147 return NULL;
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148 }
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149
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150 void lwasm_register_error(asmstate_t *as, line_t *l, const char *msg, ...)
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151 {
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152 lwasm_error_t *e;
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153 va_list args;
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154 char errbuff[1024];
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155 int r;
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156
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157 if (!l)
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158 return;
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159
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160 va_start(args, msg);
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161
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162 e = lw_alloc(sizeof(lwasm_error_t));
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163
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164 e -> next = l -> err;
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165 l -> err = e;
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166
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167 as -> errorcount++;
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168
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169 r = vsnprintf(errbuff, 1024, msg, args);
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170 e -> mess = lw_strdup(errbuff);
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171
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172 va_end(args);
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173 }
345
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174
351
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175 void lwasm_register_warning(asmstate_t *as, line_t *l, const char *msg, ...)
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176 {
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177 lwasm_error_t *e;
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178 va_list args;
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179 char errbuff[1024];
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180 int r;
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181
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182 if (!l)
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183 return;
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184
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185 va_start(args, msg);
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186
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187 e = lw_alloc(sizeof(lwasm_error_t));
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188
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189 e -> next = l -> err;
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190 l -> err = e;
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191
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diff changeset
192 as -> errorcount++;
4dba8c7e242c conditional pseudo ops added
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parents: 348
diff changeset
193
4dba8c7e242c conditional pseudo ops added
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parents: 348
diff changeset
194 r = vsnprintf(errbuff, 1024, msg, args);
4dba8c7e242c conditional pseudo ops added
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parents: 348
diff changeset
195 e -> mess = lw_strdup(errbuff);
4dba8c7e242c conditional pseudo ops added
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parents: 348
diff changeset
196
4dba8c7e242c conditional pseudo ops added
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parents: 348
diff changeset
197 va_end(args);
4dba8c7e242c conditional pseudo ops added
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parents: 348
diff changeset
198 }
4dba8c7e242c conditional pseudo ops added
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parents: 348
diff changeset
199
345
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols
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parents: 344
diff changeset
200 int lwasm_next_context(asmstate_t *as)
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols
lost@starbug
parents: 344
diff changeset
201 {
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols
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parents: 344
diff changeset
202 int r;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols
lost@starbug
parents: 344
diff changeset
203 r = as -> nextcontext;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols
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parents: 344
diff changeset
204 as -> nextcontext++;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols
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parents: 344
diff changeset
205 return r;
7416c3f9c321 Basic macro processor ported forward; added context break handling for local symbols
lost@starbug
parents: 344
diff changeset
206 }
346
a82c55070624 Added expression parsing infrastructure and misc fixes
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parents: 345
diff changeset
207
a82c55070624 Added expression parsing infrastructure and misc fixes
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parents: 345
diff changeset
208 void lwasm_emit(line_t *cl, int byte)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
209 {
374
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
210 if (cl -> outputl < 0)
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
211 cl -> outputl = 0;
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
212
346
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
213 if (cl -> outputl == cl -> outputbl)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
214 {
a82c55070624 Added expression parsing infrastructure and misc fixes
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parents: 345
diff changeset
215 cl -> output = lw_realloc(cl -> output, cl -> outputbl + 8);
a82c55070624 Added expression parsing infrastructure and misc fixes
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parents: 345
diff changeset
216 cl -> outputbl += 8;
a82c55070624 Added expression parsing infrastructure and misc fixes
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parents: 345
diff changeset
217 }
a82c55070624 Added expression parsing infrastructure and misc fixes
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parents: 345
diff changeset
218 cl -> output[cl -> outputl++] = byte & 0xff;
354
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
219
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
220 if (cl -> inmod)
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
221 {
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
222 asmstate_t *as = cl -> as;
60568b123281 Added os9 opcodes and ERROR
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parents: 351
diff changeset
223 // update module CRC
60568b123281 Added os9 opcodes and ERROR
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parents: 351
diff changeset
224 // this is a direct transliteration from the nitros9 asm source
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
225 // to C; it can, no doubt, be optimized for 32 bit processing
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
226 byte &= 0xff;
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
227
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
228 byte ^= (as -> crc)[0];
60568b123281 Added os9 opcodes and ERROR
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parents: 351
diff changeset
229 (as -> crc)[0] = (as -> crc)[1];
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
230 (as -> crc)[1] = (as -> crc)[2];
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
231 (as -> crc)[1] ^= (byte >> 7);
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
232 (as -> crc)[2] = (byte << 1);
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
233 (as -> crc)[1] ^= (byte >> 2);
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
234 (as -> crc)[2] ^= (byte << 6);
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
235 byte ^= (byte << 1);
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
236 byte ^= (byte << 2);
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
237 byte ^= (byte << 4);
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
238 if (byte & 0x80)
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
239 {
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
240 (as -> crc)[0] ^= 0x80;
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
241 (as -> crc)[2] ^= 0x21;
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
242 }
60568b123281 Added os9 opcodes and ERROR
lost@starbug
parents: 351
diff changeset
243 }
346
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
244 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
245
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
246 void lwasm_emitop(line_t *cl, int opc)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
247 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
248 if (opc > 0x100)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
249 lwasm_emit(cl, opc >> 8);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
250 lwasm_emit(cl, opc);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
251 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
252
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
253 lw_expr_t lwasm_parse_term(char **p, void *priv)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
254 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
255 asmstate_t *as = priv;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
256 int val;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
257
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
258 if (!**p)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
259 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
260
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
261 if (**p == '*' || (
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
262 **p == '.'
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
263 && !((*p)[1] >= 'A' && (*p)[1] <= 'Z')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
264 && !((*p)[1] >= 'a' && (*p)[1] <= 'z')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
265 && !((*p)[1] >= '0' && (*p)[1] <= '9')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
266 ))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
267 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
268 // special "symbol" for current line addr (*, .)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
269 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
270 return lw_expr_build(lw_expr_type_special, lwasm_expr_lineaddr, as -> cl);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
271 }
a82c55070624 Added expression parsing infrastructure and misc fixes
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parents: 345
diff changeset
272
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
273 // branch points
a82c55070624 Added expression parsing infrastructure and misc fixes
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parents: 345
diff changeset
274 if (**p == '<')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
275 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
276 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
277 return lw_expr_build(lw_expr_type_special, lwasm_expr_prevbp, as -> cl);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
278 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
279 if (**p == '>')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
280 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
281 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
282 return lw_expr_build(lw_expr_type_special, lwasm_expr_nextbp, as -> cl);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
283 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
284
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
285 // double ascii constant
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
286 if (**p == '"')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
287 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
288 int v;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
289 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
290 if (!**p)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
291 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
292 if (!*((*p)+1))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
293 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
294 v = (unsigned char)**p << 8 | (unsigned char)*((*p)+1);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
295 (*p) += 2;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
296 return lw_expr_build(lw_expr_type_int, v);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
297 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
298
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
299 if (**p == '\'')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
300 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
301 int v;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
302
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
303 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
304 if (!**p)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
305 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
306
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
307 v = (unsigned char)**p;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
308 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
309 return lw_expr_build(lw_expr_type_int, v);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
310 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
311
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
312 if (**p == '&')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
313 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
314 // decimal constant
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
315 int v = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
316 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
317
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
318 if (!strchr("0123456789", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
319 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
320
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
321 while (**p && strchr("0123456789", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
322 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
323 val = val * 10 + (**p - '0');
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
324 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
325 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
326 return lw_expr_build(lw_expr_type_int, v);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
327 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
328
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
329 if (**p == '%')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
330 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
331 // binary constant
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
332 int v = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
333 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
334
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
335 if (**p != '0' && **p != '1')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
336 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
337
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
338 while (**p && (**p == '0' || **p == '1'))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
339 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
340 val = val * 2 + (**p - '0');
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
341 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
342 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
343 return lw_expr_build(lw_expr_type_int, v);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
344 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
345
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
346 if (**p == '$')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
347 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
348 // hexadecimal constant
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
349 int v = 0, v2;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
350 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
351 if (!strchr("0123456789abcdefABCDEF", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
352 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
353
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
354 while (**p && strchr("0123456789abcdefABCDEF", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
355 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
356 v2 = toupper(**p) - '0';
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
357 if (v2 > 9)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
358 v2 -= 7;
382
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
359 v = v * 16 + v2;
346
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
360 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
361 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
362 return lw_expr_build(lw_expr_type_int, v);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
363 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
364
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
365 if (**p == '0' && (*((*p)+1) == 'x' || *((*p)+1) == 'X'))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
366 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
367 // hexadecimal constant, C style
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
368 int v = 0, v2;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
369 (*p)+=2;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
370
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
371 if (!strchr("0123456789abcdefABCDEF", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
372 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
373
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
374 while (**p && strchr("0123456789abcdefABCDEF", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
375 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
376 v2 = toupper(**p) - '0';
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
377 if (v2 > 9)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
378 v2 -= 7;
382
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
379 v = v * 16 + v2;
346
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
380 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
381 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
382 return lw_expr_build(lw_expr_type_int, v);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
383 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
384
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
385 if (**p == '@' && (*((*p)+1) >= '0' && *((*p)+1) <= '7'))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
386 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
387 // octal constant
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
388 int v = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
389 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
390
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
391 if (!strchr("01234567", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
392 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
393
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
394 while (**p && strchr("01234567", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
395 {
382
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
396 v = v * 8 + (**p - '0');
346
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
397 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
398 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
399 return lw_expr_build(lw_expr_type_int, v);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
400 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
401
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
402
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
403 // symbol or bare decimal or suffix constant here
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
404 do
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
405 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
406 int havedol = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
407 int l = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
408
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
409 while ((*p)[l] && strchr(SYMCHARS, (*p)[l]))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
410 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
411 if ((*p)[l] == '$')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
412 havedol = 1;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
413 l++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
414 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
415 if (l == 0)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
416 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
417
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
418 if (havedol || **p < '0' || **p > '9')
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
419 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
420 // have a symbol here
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
421 char *sym;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
422 lw_expr_t term;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
423
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
424 sym = lw_strndup(*p, l);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
425 (*p) += l;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
426 term = lw_expr_build(lw_expr_type_var, sym);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
427 lw_free(sym);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
428 return term;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
429 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
430 } while (0);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
431
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
432 if (!**p)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
433 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
434
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
435 // we have a numeric constant here, either decimal or postfix base notation
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
436 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
437 int decval = 0, binval = 0, hexval = 0, octval = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
438 int valtype = 15; // 1 = bin, 2 = oct, 4 = dec, 8 = hex
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
439 int bindone = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
440 int val;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
441 int dval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
442
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
443 while (1)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
444 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
445 if (!**p || !strchr("0123456789ABCDEFabcdefqhoQHO", **p))
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
446 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
447 // we can legally be bin or decimal here
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
448 if (bindone)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
449 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
450 // just finished a binary value
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
451 val = binval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
452 break;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
453 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
454 else if (valtype & 4)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
455 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
456 val = decval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
457 break;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
458 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
459 else
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
460 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
461 // bad value
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
462 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
463 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
464 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
465
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
466 dval = toupper(**p);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
467 (*p)++;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
468
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
469 if (bindone)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
470 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
471 // any characters past "B" means it is not binary
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
472 bindone = 0;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
473 valtype &= 14;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
474 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
475
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
476 switch (dval)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
477 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
478 case 'Q':
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
479 case 'O':
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
480 if (valtype & 2)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
481 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
482 val = octval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
483 valtype = -1;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
484 break;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
485 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
486 else
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
487 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
488 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
489 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
490 /* can't get here */
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
491
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
492 case 'H':
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
493 if (valtype & 8)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
494 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
495 val = hexval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
496 valtype = -1;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
497 break;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
498 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
499 else
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
500 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
501 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
502 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
503 /* can't get here */
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
504
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
505 case 'B':
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
506 // this is a bit of a sticky one since B may be a
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
507 // hex number instead of the end of a binary number
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
508 // so it falls through to the digit case
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
509 if (valtype & 1)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
510 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
511 // could still be binary of hex
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
512 bindone = 1;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
513 valtype = 9;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
514 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
515 /* fall through intented */
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
516
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
517 default:
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
518 // digit
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
519 dval -= '0';
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
520 if (dval > 9)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
521 dval -= 7;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
522 if (valtype & 8)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
523 hexval = hexval * 16 + dval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
524 if (valtype & 4)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
525 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
526 if (dval > 9)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
527 valtype &= 11;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
528 else
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
529 decval = decval * 10 + dval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
530 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
531 if (valtype & 2)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
532 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
533 if (dval > 7)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
534 valtype &= 13;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
535 else
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
536 octval = octval * 8 + dval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
537 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
538 if (valtype & 1)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
539 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
540 if (dval > 1)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
541 valtype &= 14;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
542 else
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
543 binval = binval * 2 + dval;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
544 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
545 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
546 if (valtype == -1)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
547 break;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
548
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
549 // return if no more valid types
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
550 if (valtype == 0)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
551 return NULL;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
552
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
553 val = decval; // in case we fall through
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
554 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
555
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
556 // get here if we have a value
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
557 return lw_expr_build(lw_expr_type_int, val);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
558 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
559 // can't get here
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
560 }
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
561
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
562 lw_expr_t lwasm_parse_expr(asmstate_t *as, char **p)
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
563 {
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
564 lw_expr_t e;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
565
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
566 e = lw_expr_parse(p, as);
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
567
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
568 return e;
a82c55070624 Added expression parsing infrastructure and misc fixes
lost@starbug
parents: 345
diff changeset
569 }
347
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
570
363
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
571 int lwasm_reduce_expr(asmstate_t *as, lw_expr_t expr)
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
572 {
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
573 lw_expr_simplify(expr, as);
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
574 }
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
575
347
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
576 void lwasm_save_expr(line_t *cl, int id, lw_expr_t expr)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
577 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
578 struct line_expr_s *e;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
579
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
580 for (e = cl -> exprs; e; e = e -> next)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
581 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
582 if (e -> id == id)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
583 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
584 lw_expr_destroy(e -> expr);
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
585 e -> expr = expr;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
586 return;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
587 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
588 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
589
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
590 e = lw_alloc(sizeof(struct line_expr_s));
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
591 e -> expr = expr;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
592 e -> id = id;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
593 e -> next = cl -> exprs;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
594 cl -> exprs = e;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
595 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
596
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
597 lw_expr_t lwasm_fetch_expr(line_t *cl, int id)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
598 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
599 struct line_expr_s *e;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
600
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
601 for (e = cl -> exprs; e; e = e -> next)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
602 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
603 if (e -> id == id)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
604 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
605 return e -> expr;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
606 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
607 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
608 return NULL;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
609 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
610
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
611 void skip_operand(char **p)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
612 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
613 for (; **p && !isspace(**p); (*p)++)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
614 /* do nothing */ ;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
615 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
616
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
617 int lwasm_emitexpr(line_t *l, lw_expr_t expr, int size)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
618 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
619 int v;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
620
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
621 if (lw_expr_istype(expr, lw_expr_type_int))
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
622 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
623 v = lw_expr_intval(expr);
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
624 }
348
11a95c6414b4 Added third func to instab to split resolve and emit logic
lost@starbug
parents: 347
diff changeset
625 // handle external/cross-section/incomplete references here
347
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
626 else
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
627 {
374
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
628 if (l -> as -> output_format == OUTPUT_OBJ)
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
629 {
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
630 reloctab_t *re;
376
91c0fe026940 Output incomplete references in object target
lost@starbug
parents: 375
diff changeset
631 lw_expr_t te;
374
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
632
381
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
633 if (size == 4)
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
634 {
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
635 // create a two part reference because lwlink doesn't
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
636 // support 32 bit references
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
637 lw_expr_t te2;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
638 te = lw_expr_build(lw_expr_type_int, 0x10000);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
639 te2 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_divide, expr, te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
640 lw_expr_destroy(te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
641
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
642 re = lw_alloc(sizeof(reloctab_t));
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
643 re -> next = l -> csect -> reloctab;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
644 l -> csect -> reloctab = re;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
645 te = lw_expr_build(lw_expr_type_int, l -> outputl);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
646 re -> offset = lw_expr_build(lw_expr_type_oper, lw_expr_oper_plus, l -> addr, te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
647 lw_expr_destroy(te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
648 lwasm_reduce_expr(l -> as, re -> offset);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
649 re -> expr = te2;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
650 re -> size = 2;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
651
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
652 te = lw_expr_build(lw_expr_type_int, 0xFFFF);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
653 te2 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_bwand, expr, te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
654 lw_expr_destroy(te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
655
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
656 re = lw_alloc(sizeof(reloctab_t));
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
657 re -> next = l -> csect -> reloctab;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
658 l -> csect -> reloctab = re;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
659 te = lw_expr_build(lw_expr_type_int, l -> outputl + 2);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
660 re -> offset = lw_expr_build(lw_expr_type_oper, lw_expr_oper_plus, l -> addr, te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
661 lw_expr_destroy(te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
662 lwasm_reduce_expr(l -> as, re -> offset);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
663 re -> expr = te2;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
664 re -> size = 2;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
665 }
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
666 else
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
667 {
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
668 // add "expression" record to section table
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
669 re = lw_alloc(sizeof(reloctab_t));
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
670 re -> next = l -> csect -> reloctab;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
671 l -> csect -> reloctab = re;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
672 te = lw_expr_build(lw_expr_type_int, l -> outputl);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
673 re -> offset = lw_expr_build(lw_expr_type_oper, lw_expr_oper_plus, l -> addr, te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
674 lw_expr_destroy(te);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
675 lwasm_reduce_expr(l -> as, re -> offset);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
676 re -> size = size;
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
677 re -> expr = lw_expr_copy(expr);
1624a36f12a3 Properly support 32 bit relocations
lost@starbug
parents: 376
diff changeset
678 }
374
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
679 for (v = 0; v < size; v++)
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
680 lwasm_emit(l, 0);
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
681 return 0;
d99322ef6f21 Stage 1: actually do output
lost@starbug
parents: 371
diff changeset
682 }
347
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
683 lwasm_register_error(l -> as, l, "Expression not fully resolved");
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
684 return -1;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
685 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
686
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
687 switch (size)
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
688 {
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
689 case 4:
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
690 lwasm_emit(l, v >> 24);
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
691 lwasm_emit(l, v >> 16);
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
692 /* fallthrough intended */
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
693
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
694 case 2:
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
695 lwasm_emit(l, v >> 8);
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
696 /* fallthrough intended */
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
697
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
698 case 1:
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
699 lwasm_emit(l, v);
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
700 }
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
701
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
702 return 0;
1649bc7bda5a Some data oriented pseudo ops added
lost@starbug
parents: 346
diff changeset
703 }
357
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
704
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
705 int lwasm_lookupreg2(const char *regs, char **p)
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
706 {
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
707 int rval = 0;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
708
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
709 while (*regs)
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
710 {
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
711 if (toupper(**p) == *regs)
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
712 {
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
713 if (regs[1] == ' ' && !isalpha(*(*p + 1)))
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
714 break;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
715 if (toupper(*(*p + 1)) == regs[1])
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
716 break;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
717 }
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
718 regs += 2;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
719 rval++;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
720 }
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
721 if (!*regs)
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
722 return -1;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
723 if (regs[1] == ' ')
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
724 (*p)++;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
725 else
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
726 (*p) += 2;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
727 return rval;
0cf4948d53b4 Checkpoint - adding actual cpu instructions
lost@starbug
parents: 354
diff changeset
728 }
359
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
729
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
730 int lwasm_lookupreg3(const char *regs, char **p)
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
731 {
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
732 int rval = 0;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
733
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
734 while (*regs)
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
735 {
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
736 if (toupper(**p) == *regs)
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
737 {
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
738 if (regs[1] == ' ' && !isalpha(*(*p + 1)))
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
739 break;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
740 if (toupper(*(*p + 1)) == regs[1])
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
741 {
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
742 if (regs[2] == ' ' && !isalpha(*(*p + 2)))
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
743 break;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
744 if (toupper(*(*p + 2)) == regs[2])
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
745 break;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
746 }
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
747 }
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
748 regs += 3;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
749 rval++;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
750 }
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
751 if (!*regs)
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
752 return -1;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
753 if (regs[1] == ' ')
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
754 (*p)++;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
755 else if (regs[2] == ' ')
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
756 (*p) += 2;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
757 else
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
758 (*p) += 3;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
759 return rval;
f50a54d0293a Indexed part 1
lost@starbug
parents: 357
diff changeset
760 }
363
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
761
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
762 void lwasm_show_errors(asmstate_t *as)
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
763 {
382
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
764 line_t *cl;
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
765 lwasm_error_t *e;
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
766
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
767 for (cl = as -> line_head; cl; cl = cl -> next)
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
768 {
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
769 if (!(cl -> err) && !(cl -> warn))
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
770 continue;
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
771 for (e = cl -> err; e; e = e -> next)
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
772 {
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
773 fprintf(stderr, "ERROR: %s\n", e -> mess);
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
774 }
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
775 for (e = cl -> warn; e; e = e -> next)
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
776 {
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
777 fprintf(stderr, "WARNING: %s\n", e -> mess);
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
778 }
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
779
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
780 fprintf(stderr, " LINE: %s\n", cl -> ltext);
eacdae8a1575 Various bugfixes
lost@starbug
parents: 381
diff changeset
781 }
363
d96c30e60ddf Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents: 359
diff changeset
782 }