Mercurial > hg-old > index.cgi
annotate lwasm/pseudo.c @ 389:fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
| author | lost@l-w.ca |
|---|---|
| date | Wed, 14 Jul 2010 22:33:55 -0600 |
| parents | a741d2e4869f |
| children | c1d83336e1d1 |
| rev | line source |
|---|---|
| 347 | 1 /* |
| 2 pseudo.c | |
| 3 Copyright © 2010 William Astle | |
| 4 | |
| 5 This file is part of LWASM. | |
| 6 | |
| 7 LWASM is free software: you can redistribute it and/or modify it under the | |
| 8 terms of the GNU General Public License as published by the Free Software | |
| 9 Foundation, either version 3 of the License, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 This program is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 15 more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License along with | |
| 18 this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 */ | |
| 21 | |
| 22 #include <config.h> | |
| 23 | |
| 356 | 24 #include <stdio.h> |
| 25 | |
| 347 | 26 #include "lwasm.h" |
| 27 #include "instab.h" | |
| 356 | 28 #include "input.h" |
| 347 | 29 |
| 349 | 30 #include "lw_string.h" |
| 31 | |
|
389
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
32 extern void register_struct_entry(asmstate_t *as, line_t *l, int size, structtab_t *ss); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
33 |
| 347 | 34 // for "end" |
| 35 PARSEFUNC(pseudo_parse_end) | |
| 36 { | |
| 37 lw_expr_t addr; | |
| 38 | |
| 39 as -> endseen = 1; | |
| 370 | 40 l -> len = 0; |
| 347 | 41 |
| 42 if (as -> output_format != OUTPUT_DECB) | |
| 43 { | |
| 44 skip_operand(p); | |
| 45 return; | |
| 46 } | |
| 47 | |
| 370 | 48 if (!**p) |
| 49 { | |
| 50 addr = lw_expr_build(lw_expr_type_int, 0); | |
| 51 } | |
| 52 else | |
| 53 { | |
| 54 addr = lwasm_parse_expr(as, p); | |
| 55 } | |
| 347 | 56 if (!addr) |
| 57 { | |
| 58 lwasm_register_error(as, l, "Bad expression"); | |
| 59 addr = lw_expr_build(lw_expr_type_int, 0); | |
| 60 } | |
| 61 lwasm_save_expr(l, 0, addr); | |
| 62 } | |
| 63 | |
|
348
11a95c6414b4
Added third func to instab to split resolve and emit logic
lost@starbug
parents:
347
diff
changeset
|
64 EMITFUNC(pseudo_emit_end) |
| 347 | 65 { |
| 66 lw_expr_t addr; | |
| 67 | |
| 68 addr = lwasm_fetch_expr(l, 0); | |
| 69 | |
| 70 if (addr) | |
| 71 { | |
| 72 if (!lw_expr_istype(addr, lw_expr_type_int)) | |
| 73 lwasm_register_error(as, l, "Exec address not constant!"); | |
| 74 else | |
| 75 as -> execaddr = lw_expr_intval(addr); | |
| 76 } | |
| 77 as -> endseen = 1; | |
| 78 } | |
| 79 | |
| 80 PARSEFUNC(pseudo_parse_fcb) | |
| 81 { | |
| 82 int i = 0; | |
| 83 lw_expr_t e; | |
| 84 | |
| 85 for (;;) | |
| 86 { | |
| 87 e = lwasm_parse_expr(as, p); | |
| 88 if (!e) | |
| 89 { | |
| 90 lwasm_register_error(as, l, "Bad expression (#%s)", i); | |
| 91 break; | |
| 92 } | |
| 382 | 93 lwasm_save_expr(l, i++, e); |
| 94 if (**p != ',') | |
| 95 break; | |
| 96 (*p)++; | |
| 347 | 97 } |
| 98 | |
| 99 l -> len = i; | |
| 100 } | |
| 101 | |
|
348
11a95c6414b4
Added third func to instab to split resolve and emit logic
lost@starbug
parents:
347
diff
changeset
|
102 EMITFUNC(pseudo_emit_fcb) |
| 347 | 103 { |
| 104 int i; | |
| 105 lw_expr_t e; | |
| 106 int v; | |
| 107 | |
| 108 for (i = 0; i < l -> len; i++) | |
| 109 { | |
| 110 e = lwasm_fetch_expr(l, i); | |
| 111 lwasm_emitexpr(l, e, 1); | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 PARSEFUNC(pseudo_parse_fdb) | |
| 116 { | |
| 117 int i = 0; | |
| 118 lw_expr_t e; | |
| 119 | |
| 120 for (;;) | |
| 121 { | |
| 122 e = lwasm_parse_expr(as, p); | |
| 123 if (!e) | |
| 124 { | |
| 382 | 125 lwasm_register_error(as, l, "Bad expression (#%d)", i); |
| 347 | 126 break; |
| 127 } | |
| 382 | 128 lwasm_save_expr(l, i++, e); |
| 129 if (**p != ',') | |
| 130 break; | |
| 131 (*p)++; | |
| 347 | 132 } |
| 133 | |
| 134 l -> len = i * 2; | |
| 135 } | |
| 136 | |
|
348
11a95c6414b4
Added third func to instab to split resolve and emit logic
lost@starbug
parents:
347
diff
changeset
|
137 EMITFUNC(pseudo_emit_fdb) |
| 347 | 138 { |
| 139 int i; | |
| 140 lw_expr_t e; | |
| 141 int v; | |
| 142 | |
| 143 for (i = 0; i < (l -> len)/2; i++) | |
| 144 { | |
| 145 e = lwasm_fetch_expr(l, i); | |
| 146 lwasm_emitexpr(l, e, 2); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 PARSEFUNC(pseudo_parse_fqb) | |
| 151 { | |
| 152 int i = 0; | |
| 153 lw_expr_t e; | |
| 154 | |
| 155 for (;;) | |
| 156 { | |
| 157 e = lwasm_parse_expr(as, p); | |
| 158 if (!e) | |
| 159 { | |
| 160 lwasm_register_error(as, l, "Bad expression (#%s)", i); | |
| 161 break; | |
| 162 } | |
| 382 | 163 lwasm_save_expr(l, i++, e); |
| 164 if (**p != ',') | |
| 165 break; | |
| 166 (*p)++; | |
| 347 | 167 } |
| 168 | |
| 169 l -> len = i * 4; | |
| 170 } | |
| 171 | |
|
348
11a95c6414b4
Added third func to instab to split resolve and emit logic
lost@starbug
parents:
347
diff
changeset
|
172 EMITFUNC(pseudo_emit_fqb) |
| 347 | 173 { |
| 174 int i; | |
| 175 lw_expr_t e; | |
| 176 int v; | |
| 177 | |
| 178 for (i = 0; i < (l -> len)/4; i++) | |
| 179 { | |
| 180 e = lwasm_fetch_expr(l, i); | |
| 181 lwasm_emitexpr(l, e, 4); | |
| 182 } | |
| 183 } | |
| 349 | 184 |
| 185 PARSEFUNC(pseudo_parse_fcc) | |
| 186 { | |
| 187 char delim; | |
| 188 int i; | |
| 189 | |
| 190 if (!**p) | |
| 191 { | |
| 192 lwasm_register_error(as, l, "Bad operand"); | |
| 193 return; | |
| 194 } | |
| 195 | |
| 196 delim = **p; | |
| 197 (*p)++; | |
| 198 | |
| 199 for (i = 0; (*p)[i] && (*p)[i] != delim; i++) | |
| 200 /* do nothing */ ; | |
| 201 | |
| 202 if ((*p)[i] != delim) | |
| 203 { | |
| 204 lwasm_register_error(as, l, "Bad operand"); | |
| 205 return; | |
| 206 } | |
| 207 | |
| 208 l -> lstr = lw_strndup(*p, i); | |
| 209 (*p) += i + 1; | |
| 210 | |
| 211 l -> len = i; | |
| 212 } | |
| 213 | |
| 214 EMITFUNC(pseudo_emit_fcc) | |
| 215 { | |
| 216 int i; | |
| 217 | |
| 218 for (i = 0; i < l -> len; i++) | |
| 219 lwasm_emit(l, l -> lstr[i]); | |
| 220 } | |
| 221 | |
| 222 PARSEFUNC(pseudo_parse_fcs) | |
| 223 { | |
| 224 char delim; | |
| 225 int i; | |
| 226 | |
| 227 if (!**p) | |
| 228 { | |
| 229 lwasm_register_error(as, l, "Bad operand"); | |
| 230 return; | |
| 231 } | |
| 232 | |
| 233 delim = **p; | |
| 234 (*p)++; | |
| 235 | |
| 236 for (i = 0; (*p)[i] && (*p)[i] != delim; i++) | |
| 237 /* do nothing */ ; | |
| 238 | |
| 239 if ((*p)[i] != delim) | |
| 240 { | |
| 241 lwasm_register_error(as, l, "Bad operand"); | |
| 242 return; | |
| 243 } | |
| 244 | |
| 245 l -> lstr = lw_strndup(*p, i); | |
| 246 (*p) += i + 1; | |
| 247 | |
| 248 l -> len = i; | |
| 249 } | |
| 250 | |
| 251 EMITFUNC(pseudo_emit_fcs) | |
| 252 { | |
| 253 int i; | |
| 254 | |
| 255 for (i = 0; i < l -> len - 1; i++) | |
| 256 lwasm_emit(l, l -> lstr[i]); | |
| 257 lwasm_emit(l, l -> lstr[i] | 0x80); | |
| 258 } | |
| 259 | |
| 260 PARSEFUNC(pseudo_parse_fcn) | |
| 261 { | |
| 262 char delim; | |
| 263 int i; | |
| 264 | |
| 265 if (!**p) | |
| 266 { | |
| 267 lwasm_register_error(as, l, "Bad operand"); | |
| 268 return; | |
| 269 } | |
| 270 | |
| 271 delim = **p; | |
| 272 (*p)++; | |
| 273 | |
| 274 for (i = 0; (*p)[i] && (*p)[i] != delim; i++) | |
| 275 /* do nothing */ ; | |
| 276 | |
| 277 if ((*p)[i] != delim) | |
| 278 { | |
| 279 lwasm_register_error(as, l, "Bad operand"); | |
| 280 return; | |
| 281 } | |
| 282 | |
| 283 l -> lstr = lw_strndup(*p, i); | |
| 284 (*p) += i + 1; | |
| 285 | |
| 286 l -> len = i; | |
| 287 } | |
| 288 | |
| 289 EMITFUNC(pseudo_emit_fcn) | |
| 290 { | |
| 291 int i; | |
| 292 | |
| 293 for (i = 0; i < l -> len; i++) | |
| 294 lwasm_emit(l, l -> lstr[i]); | |
| 295 lwasm_emit(l, 0); | |
| 296 } | |
| 297 | |
| 298 PARSEFUNC(pseudo_parse_rmb) | |
| 299 { | |
| 300 lw_expr_t expr; | |
| 301 | |
| 302 expr = lwasm_parse_expr(as, p); | |
| 303 if (!expr) | |
| 304 { | |
| 305 lwasm_register_error(as, l, "Bad expression"); | |
| 306 } | |
|
389
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
307 |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
308 if (as -> instruct) |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
309 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
310 lwasm_reduce_expr(as, expr); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
311 if (!lw_expr_istype(expr, lw_expr_type_int)) |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
312 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
313 lwasm_register_error(as, l, "Expression must be constant at parse time"); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
314 } |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
315 else |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
316 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
317 int e; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
318 e = lw_expr_intval(expr); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
319 register_struct_entry(as, l, e, NULL); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
320 l -> len = 0; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
321 } |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
322 } |
| 349 | 323 |
| 324 lwasm_save_expr(l, 0, expr); | |
| 325 } | |
| 326 | |
| 327 RESOLVEFUNC(pseudo_resolve_rmb) | |
| 328 { | |
| 329 lw_expr_t expr; | |
| 330 | |
| 331 if (l -> len >= 0) | |
| 332 return; | |
| 333 | |
| 334 expr = lwasm_fetch_expr(l, 0); | |
| 335 | |
| 336 if (lw_expr_istype(expr, lw_expr_type_int)) | |
| 337 { | |
| 338 l -> len = lw_expr_intval(expr); | |
| 339 } | |
| 340 } | |
| 341 | |
| 342 EMITFUNC(pseudo_emit_rmb) | |
| 343 { | |
| 344 if (l -> len < 0) | |
| 345 lwasm_register_error(as, l, "Expression not constant"); | |
| 346 } | |
| 347 | |
| 348 PARSEFUNC(pseudo_parse_rmd) | |
| 349 { | |
| 350 lw_expr_t expr; | |
| 351 | |
| 352 expr = lwasm_parse_expr(as, p); | |
| 353 if (!expr) | |
| 354 { | |
| 355 lwasm_register_error(as, l, "Bad expression"); | |
| 356 } | |
| 357 | |
|
389
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
358 if (as -> instruct) |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
359 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
360 lwasm_reduce_expr(as, expr); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
361 if (!lw_expr_istype(expr, lw_expr_type_int)) |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
362 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
363 lwasm_register_error(as, l, "Expression must be constant at parse time"); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
364 } |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
365 else |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
366 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
367 int e; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
368 e = lw_expr_intval(expr) * 2; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
369 register_struct_entry(as, l, e, NULL); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
370 l -> len = 0; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
371 } |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
372 } |
| 349 | 373 lwasm_save_expr(l, 0, expr); |
| 374 } | |
| 375 | |
| 376 RESOLVEFUNC(pseudo_resolve_rmd) | |
| 377 { | |
| 378 lw_expr_t expr; | |
| 379 | |
| 380 if (l -> len >= 0) | |
| 381 return; | |
| 382 | |
| 383 expr = lwasm_fetch_expr(l, 0); | |
| 384 | |
| 385 if (lw_expr_istype(expr, lw_expr_type_int)) | |
| 386 { | |
| 387 l -> len = lw_expr_intval(expr) * 2; | |
| 388 } | |
| 389 } | |
| 390 | |
| 391 EMITFUNC(pseudo_emit_rmd) | |
| 392 { | |
| 393 if (l -> len < 0) | |
| 394 lwasm_register_error(as, l, "Expression not constant"); | |
| 395 } | |
| 396 | |
| 397 | |
| 398 PARSEFUNC(pseudo_parse_rmq) | |
| 399 { | |
| 400 lw_expr_t expr; | |
| 401 | |
| 402 expr = lwasm_parse_expr(as, p); | |
| 403 if (!expr) | |
| 404 { | |
| 405 lwasm_register_error(as, l, "Bad expression"); | |
| 406 } | |
|
389
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
407 if (as -> instruct) |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
408 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
409 lwasm_reduce_expr(as, expr); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
410 if (!lw_expr_istype(expr, lw_expr_type_int)) |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
411 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
412 lwasm_register_error(as, l, "Expression must be constant at parse time"); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
413 } |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
414 else |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
415 { |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
416 int e; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
417 e = lw_expr_intval(expr) * 4; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
418 register_struct_entry(as, l, e, NULL); |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
419 l -> len = 0; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
420 } |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
421 } |
| 349 | 422 |
| 423 lwasm_save_expr(l, 0, expr); | |
| 424 } | |
| 425 | |
| 426 RESOLVEFUNC(pseudo_resolve_rmq) | |
| 427 { | |
| 428 lw_expr_t expr; | |
| 429 | |
| 430 if (l -> len >= 0) | |
| 431 return; | |
| 432 | |
| 433 expr = lwasm_fetch_expr(l, 0); | |
| 434 | |
| 435 if (lw_expr_istype(expr, lw_expr_type_int)) | |
| 436 { | |
| 437 l -> len = lw_expr_intval(expr) * 4; | |
| 438 } | |
| 439 } | |
| 440 | |
| 441 EMITFUNC(pseudo_emit_rmq) | |
| 442 { | |
| 443 if (l -> len < 0) | |
| 444 lwasm_register_error(as, l, "Expression not constant"); | |
| 445 } | |
| 446 | |
| 447 | |
| 448 PARSEFUNC(pseudo_parse_zmq) | |
| 449 { | |
| 450 lw_expr_t expr; | |
| 451 | |
| 452 expr = lwasm_parse_expr(as, p); | |
| 453 if (!expr) | |
| 454 { | |
| 455 lwasm_register_error(as, l, "Bad expression"); | |
| 456 } | |
| 457 | |
| 458 lwasm_save_expr(l, 0, expr); | |
| 459 } | |
| 460 | |
| 461 RESOLVEFUNC(pseudo_resolve_zmq) | |
| 462 { | |
| 463 lw_expr_t expr; | |
| 464 | |
| 465 if (l -> len >= 0) | |
| 466 return; | |
| 467 | |
| 468 expr = lwasm_fetch_expr(l, 0); | |
| 469 | |
| 470 if (lw_expr_istype(expr, lw_expr_type_int)) | |
| 471 { | |
| 472 l -> len = lw_expr_intval(expr) * 4; | |
| 473 } | |
| 474 } | |
| 475 | |
| 476 EMITFUNC(pseudo_emit_zmq) | |
| 477 { | |
| 478 int i; | |
| 479 | |
| 480 if (l -> len < 0) | |
| 481 { | |
| 482 lwasm_register_error(as, l, "Expression not constant"); | |
| 483 return; | |
| 484 } | |
| 485 | |
| 486 for (i = 0; i < l -> len; i++) | |
| 487 lwasm_emit(l, 0); | |
| 488 } | |
| 489 | |
| 490 | |
| 491 PARSEFUNC(pseudo_parse_zmd) | |
| 492 { | |
| 493 lw_expr_t expr; | |
| 494 | |
| 495 expr = lwasm_parse_expr(as, p); | |
| 496 if (!expr) | |
| 497 { | |
| 498 lwasm_register_error(as, l, "Bad expression"); | |
| 499 } | |
| 500 | |
| 501 lwasm_save_expr(l, 0, expr); | |
| 502 } | |
| 503 | |
| 504 RESOLVEFUNC(pseudo_resolve_zmd) | |
| 505 { | |
| 506 lw_expr_t expr; | |
| 507 | |
| 508 if (l -> len >= 0) | |
| 509 return; | |
| 510 | |
| 511 expr = lwasm_fetch_expr(l, 0); | |
| 512 | |
| 513 if (lw_expr_istype(expr, lw_expr_type_int)) | |
| 514 { | |
| 515 l -> len = lw_expr_intval(expr) * 2; | |
| 516 } | |
| 517 } | |
| 518 | |
| 519 EMITFUNC(pseudo_emit_zmd) | |
| 520 { | |
| 521 int i; | |
| 522 | |
| 523 if (l -> len < 0) | |
| 524 { | |
| 525 lwasm_register_error(as, l, "Expression not constant"); | |
| 526 return; | |
| 527 } | |
| 528 | |
| 529 for (i = 0; i < l -> len; i++) | |
| 530 lwasm_emit(l, 0); | |
| 531 } | |
| 532 | |
| 533 PARSEFUNC(pseudo_parse_zmb) | |
| 534 { | |
| 535 lw_expr_t expr; | |
| 536 | |
| 537 expr = lwasm_parse_expr(as, p); | |
| 538 if (!expr) | |
| 539 { | |
| 540 lwasm_register_error(as, l, "Bad expression"); | |
| 541 } | |
| 542 | |
| 543 lwasm_save_expr(l, 0, expr); | |
| 544 } | |
| 545 | |
| 546 RESOLVEFUNC(pseudo_resolve_zmb) | |
| 547 { | |
| 548 lw_expr_t expr; | |
| 549 | |
| 550 if (l -> len >= 0) | |
| 551 return; | |
| 552 | |
| 553 expr = lwasm_fetch_expr(l, 0); | |
| 554 | |
| 555 if (lw_expr_istype(expr, lw_expr_type_int)) | |
| 556 { | |
| 557 l -> len = lw_expr_intval(expr); | |
| 558 } | |
| 559 } | |
| 560 | |
| 561 EMITFUNC(pseudo_emit_zmb) | |
| 562 { | |
| 563 int i; | |
| 564 | |
| 565 if (l -> len < 0) | |
| 566 { | |
| 567 lwasm_register_error(as, l, "Expression not constant"); | |
| 568 return; | |
| 569 } | |
| 570 | |
| 571 for (i = 0; i < l -> len; i++) | |
| 572 lwasm_emit(l, 0); | |
| 573 } | |
| 350 | 574 |
| 575 PARSEFUNC(pseudo_parse_org) | |
| 576 { | |
| 577 lw_expr_t e; | |
| 578 | |
| 351 | 579 l -> len = 0; |
| 580 | |
| 350 | 581 e = lwasm_parse_expr(as, p); |
| 582 if (!e) | |
| 583 { | |
| 584 lwasm_register_error(as, l, "Bad operand"); | |
| 585 return; | |
| 586 } | |
| 587 | |
| 588 lw_expr_destroy(l -> addr); | |
| 589 l -> addr = e; | |
| 590 l -> len = 0; | |
| 591 } | |
| 592 | |
| 593 PARSEFUNC(pseudo_parse_equ) | |
| 594 { | |
| 595 lw_expr_t e; | |
| 596 | |
| 351 | 597 l -> len = 0; |
| 598 | |
| 350 | 599 if (!(l -> sym)) |
| 600 { | |
| 601 lwasm_register_error(as, l, "Missing symbol"); | |
| 602 return; | |
| 603 } | |
| 604 | |
| 605 e = lwasm_parse_expr(as, p); | |
| 606 if (!e) | |
| 607 { | |
| 608 lwasm_register_error(as, l, "Bad operand"); | |
| 609 return; | |
| 610 } | |
| 611 | |
| 612 register_symbol(as, l, l -> sym, e, symbol_flag_none); | |
| 613 l -> symset = 1; | |
|
389
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
614 l -> dptr = lookup_symbol(as, l, l -> sym); |
| 350 | 615 } |
| 351 | 616 |
| 617 PARSEFUNC(pseudo_parse_set) | |
| 618 { | |
| 619 lw_expr_t e; | |
| 620 | |
| 621 l -> len = 0; | |
| 622 | |
| 623 if (!(l -> sym)) | |
| 624 { | |
| 625 lwasm_register_error(as, l, "Missing symbol"); | |
| 626 return; | |
| 627 } | |
| 628 | |
| 629 e = lwasm_parse_expr(as, p); | |
| 630 if (!e) | |
| 631 { | |
| 632 lwasm_register_error(as, l, "Bad operand"); | |
| 633 return; | |
| 634 } | |
| 635 | |
| 636 register_symbol(as, l, l -> sym, e, symbol_flag_set); | |
| 637 l -> symset = 1; | |
|
389
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
638 l -> dptr = lookup_symbol(as, l, l -> sym); |
| 351 | 639 } |
| 640 | |
| 641 PARSEFUNC(pseudo_parse_setdp) | |
| 642 { | |
| 643 lw_expr_t e; | |
| 644 | |
| 645 l -> len = 0; | |
| 646 | |
| 647 if (as -> output_format == OUTPUT_OBJ) | |
| 648 { | |
| 649 lwasm_register_error(as, l, "SETDP not permitted for object target"); | |
| 650 return; | |
| 651 } | |
| 652 | |
| 653 e = lwasm_parse_expr(as, p); | |
| 654 if (!e) | |
| 655 { | |
| 656 lwasm_register_error(as, l, "Bad operand"); | |
| 657 return; | |
| 658 } | |
| 659 | |
| 660 if (!lw_expr_istype(e, lw_expr_type_int)) | |
| 661 { | |
| 662 lwasm_register_error(as, l, "SETDP must be constant on pass 1"); | |
| 663 return; | |
| 664 } | |
| 665 l -> dpval = lw_expr_intval(e) & 0xff; | |
|
389
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
666 l -> dshow = l -> dpval; |
|
fbb7bfed8076
Added in structure support and fixed up some warts in the listing code (by adding more warts)
lost@l-w.ca
parents:
387
diff
changeset
|
667 l -> dsize = 1; |
| 351 | 668 } |
| 669 | |
| 670 PARSEFUNC(pseudo_parse_ifp1) | |
| 671 { | |
| 672 l -> len = 0; | |
| 673 | |
| 674 if (as -> skipcond && !(as -> skipmacro)) | |
| 675 { | |
| 676 as -> skipcount++; | |
| 677 skip_operand(p); | |
| 678 return; | |
| 679 } | |
| 680 | |
| 681 lwasm_register_warning(as, l, "IFP1 if is not supported; ignoring"); | |
| 682 | |
| 683 } | |
| 684 | |
| 685 PARSEFUNC(pseudo_parse_ifp2) | |
| 686 { | |
| 687 l -> len = 0; | |
| 688 | |
| 689 if (as -> skipcond && !(as -> skipmacro)) | |
| 690 { | |
| 691 as -> skipcount++; | |
| 692 skip_operand(p); | |
| 693 return; | |
| 694 } | |
| 695 | |
| 696 lwasm_register_warning(as, l, "IFP2 if is not supported; ignoring"); | |
| 697 } | |
| 698 | |
| 699 PARSEFUNC(pseudo_parse_ifeq) | |
| 700 { | |
| 701 lw_expr_t e; | |
| 702 | |
| 703 l -> len = 0; | |
| 704 | |
| 705 if (as -> skipcond && !(as -> skipmacro)) | |
| 706 { | |
| 707 as -> skipcount++; | |
| 708 skip_operand(p); | |
| 709 return; | |
| 710 } | |
| 711 | |
|
387
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
712 e = lwasm_parse_cond(as, p); |
|
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
713 if (e && lw_expr_intval(e) != 0) |
| 351 | 714 { |
| 715 as -> skipcond = 1; | |
| 716 as -> skipcount = 1; | |
| 717 } | |
| 718 } | |
| 719 | |
| 720 PARSEFUNC(pseudo_parse_ifne) | |
| 721 { | |
| 722 lw_expr_t e; | |
| 723 | |
| 724 l -> len = 0; | |
| 725 | |
| 726 if (as -> skipcond && !(as -> skipmacro)) | |
| 727 { | |
| 728 as -> skipcount++; | |
| 729 skip_operand(p); | |
| 730 return; | |
| 731 } | |
| 732 | |
|
387
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
733 e = lwasm_parse_cond(as, p); |
|
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
734 if (e && lw_expr_intval(e) == 0) |
| 351 | 735 { |
| 736 as -> skipcond = 1; | |
| 737 as -> skipcount = 1; | |
| 738 } | |
| 739 } | |
| 740 | |
| 741 | |
| 742 PARSEFUNC(pseudo_parse_ifgt) | |
| 743 { | |
| 744 lw_expr_t e; | |
| 745 | |
| 746 l -> len = 0; | |
| 747 | |
| 748 if (as -> skipcond && !(as -> skipmacro)) | |
| 749 { | |
| 750 as -> skipcount++; | |
| 751 skip_operand(p); | |
| 752 return; | |
| 753 } | |
| 754 | |
|
387
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
755 e = lwasm_parse_cond(as, p); |
|
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
756 if (e && lw_expr_intval(e) <= 0) |
| 351 | 757 { |
| 758 as -> skipcond = 1; | |
| 759 as -> skipcount = 1; | |
| 760 } | |
| 761 } | |
| 762 | |
| 763 PARSEFUNC(pseudo_parse_ifge) | |
| 764 { | |
| 765 lw_expr_t e; | |
| 766 | |
| 767 l -> len = 0; | |
| 768 | |
| 769 if (as -> skipcond && !(as -> skipmacro)) | |
| 770 { | |
| 771 as -> skipcount++; | |
| 772 skip_operand(p); | |
| 773 return; | |
| 774 } | |
| 775 | |
|
387
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
776 e = lwasm_parse_cond(as, p); |
|
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
777 if (e && lw_expr_intval(e) < 0) |
| 351 | 778 { |
| 779 as -> skipcond = 1; | |
| 780 as -> skipcount = 1; | |
| 781 } | |
| 782 } | |
| 783 | |
| 784 PARSEFUNC(pseudo_parse_iflt) | |
| 785 { | |
| 786 lw_expr_t e; | |
| 787 | |
| 788 l -> len = 0; | |
| 789 | |
| 790 if (as -> skipcond && !(as -> skipmacro)) | |
| 791 { | |
| 792 as -> skipcount++; | |
| 793 skip_operand(p); | |
| 794 return; | |
| 795 } | |
| 796 | |
|
387
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
797 e = lwasm_parse_cond(as, p); |
|
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
798 if (e && lw_expr_intval(e) >= 0) |
| 351 | 799 { |
| 800 as -> skipcond = 1; | |
| 801 as -> skipcount = 1; | |
| 802 } | |
| 803 } | |
| 804 | |
| 805 PARSEFUNC(pseudo_parse_ifle) | |
| 806 { | |
| 807 lw_expr_t e; | |
| 808 | |
| 809 l -> len = 0; | |
| 810 | |
| 811 if (as -> skipcond && !(as -> skipmacro)) | |
| 812 { | |
| 813 as -> skipcount++; | |
| 814 skip_operand(p); | |
| 815 return; | |
| 816 } | |
| 817 | |
|
387
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
818 e = lwasm_parse_cond(as, p); |
|
a741d2e4869f
Various bugfixes; fixed lwobjdump to display symbols with unprintable characters more sensibly; start of a (nonfunctional for now) testing framework
lost@l-w.ca
parents:
386
diff
changeset
|
819 if (e && lw_expr_intval(e) > 0) |
| 351 | 820 { |
| 821 as -> skipcond = 1; | |
| 822 as -> skipcount = 1; | |
| 823 } | |
| 824 } | |
| 825 | |
| 826 PARSEFUNC(pseudo_parse_endc) | |
| 827 { | |
| 828 l -> len = 0; | |
| 829 if (as -> skipcond && !(as -> skipmacro)) | |
| 830 { | |
| 831 as -> skipcount--; | |
| 832 if (as -> skipcount < 0) | |
| 833 as -> skipcond = 0; | |
| 834 } | |
| 835 } | |
| 836 | |
| 837 PARSEFUNC(pseudo_parse_else) | |
| 838 { | |
| 839 l -> len = 0; | |
| 840 | |
| 841 if (as -> skipmacro) | |
| 842 return; | |
| 843 | |
| 844 if (as -> skipcond) | |
| 845 { | |
| 846 if (as -> skipcount == 1) | |
| 847 { | |
| 848 as -> skipcount = 0; | |
| 849 as -> skipcond = 0; | |
| 850 } | |
| 851 return; | |
| 852 } | |
| 853 as -> skipcond = 1; | |
| 854 as -> skipcount = 1; | |
| 855 } | |
| 856 | |
| 857 PARSEFUNC(pseudo_parse_ifdef) | |
| 858 { | |
| 859 char *sym; | |
| 860 int i; | |
| 861 struct symtabe *s; | |
| 862 | |
| 863 l -> len = 0; | |
| 864 | |
| 865 if (as -> skipcond && !(as -> skipmacro)) | |
| 866 { | |
| 867 as -> skipcount++; | |
| 868 skip_operand(p); | |
| 869 return; | |
| 870 } | |
| 871 | |
| 872 for (i = 0; (*p)[i] && !isspace((*p)[i]); i++) | |
| 873 /* do nothing */ ; | |
| 874 | |
| 875 sym = lw_strndup(*p, i); | |
| 876 | |
|
363
d96c30e60ddf
Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents:
356
diff
changeset
|
877 s = lookup_symbol(as, l, sym); |
| 351 | 878 |
| 879 lw_free(sym); | |
| 880 | |
| 881 if (!s) | |
| 882 { | |
| 883 as -> skipcond = 1; | |
| 884 as -> skipcount = 1; | |
| 885 } | |
| 886 } | |
| 887 | |
| 888 PARSEFUNC(pseudo_parse_ifndef) | |
| 889 { | |
| 890 char *sym; | |
| 891 int i; | |
| 892 struct symtabe *s; | |
| 893 | |
| 894 l -> len = 0; | |
| 895 | |
| 896 if (as -> skipcond && !(as -> skipmacro)) | |
| 897 { | |
| 898 as -> skipcount++; | |
| 899 skip_operand(p); | |
| 900 return; | |
| 901 } | |
| 902 | |
| 903 for (i = 0; (*p)[i] && !isspace((*p)[i]); i++) | |
| 904 /* do nothing */ ; | |
| 905 | |
| 906 sym = lw_strndup(*p, i); | |
| 386 | 907 (*p) += i; |
| 351 | 908 |
|
363
d96c30e60ddf
Added pass2 and various supporting logic including symbol lookups
lost@starbug
parents:
356
diff
changeset
|
909 s = lookup_symbol(as, l, sym); |
| 351 | 910 |
| 911 lw_free(sym); | |
| 912 | |
| 913 if (s) | |
| 914 { | |
| 915 as -> skipcond = 1; | |
| 916 as -> skipcount = 1; | |
| 917 } | |
| 918 } | |
| 919 | |
| 354 | 920 PARSEFUNC(pseudo_parse_error) |
| 921 { | |
| 922 lwasm_register_error(as, l, "User error: %s", *p); | |
| 923 skip_operand(p); | |
| 924 } | |
| 356 | 925 |
| 926 PARSEFUNC(pseudo_parse_includebin) | |
| 927 { | |
| 928 char *fn, *p2; | |
| 929 int delim = 0; | |
| 930 FILE *fp; | |
| 931 long flen; | |
| 932 | |
| 933 if (!**p) | |
| 934 { | |
| 935 lwasm_register_error(as, l, "Missing filename"); | |
| 936 return; | |
| 937 } | |
| 938 | |
| 939 if (**p == '"' || **p == '\'') | |
| 940 { | |
| 941 delim = **p; | |
| 942 (*p)++; | |
| 943 | |
| 944 for (p2 = *p; *p2 && *p2 != delim; p2++) | |
| 945 /* do nothing */ ; | |
| 946 } | |
| 947 else | |
| 948 { | |
| 949 for (p2 = *p; *p2 && !isspace(*p2); p2++) | |
| 950 /* do nothing */ ; | |
| 951 } | |
| 952 fn = lw_strndup(*p, p2 - *p); | |
| 953 | |
| 954 if (delim && **p) | |
| 955 (*p)++; | |
| 956 | |
| 957 fp = input_open_standalone(as, fn); | |
| 958 if (!fp) | |
| 959 { | |
| 960 lwasm_register_error(as, l, "Cannot open file"); | |
| 961 lw_free(fn); | |
| 962 return; | |
| 963 } | |
| 964 | |
| 965 l -> lstr = fn; | |
| 966 | |
| 967 fseek(fp, 0, SEEK_END); | |
| 968 flen = ftell(fp); | |
| 969 fclose(fp); | |
| 970 | |
| 971 l -> len = flen; | |
| 972 } | |
| 973 | |
| 974 EMITFUNC(pseudo_emit_includebin) | |
| 975 { | |
| 976 FILE *fp; | |
| 977 int c; | |
| 978 | |
| 979 fp = input_open_standalone(as, l -> lstr); | |
| 980 if (!fp) | |
| 981 { | |
| 982 lwasm_register_error(as, l, "Cannot open file (emit)!"); | |
| 983 return; | |
| 984 } | |
| 985 | |
| 986 for (;;) | |
| 987 { | |
| 988 c = fgetc(fp); | |
| 989 if (c == EOF) | |
| 990 { | |
| 991 fclose(fp); | |
| 992 return; | |
| 993 } | |
| 994 lwasm_emit(l, c); | |
| 995 } | |
| 996 } | |
| 997 | |
| 998 PARSEFUNC(pseudo_parse_include) | |
| 999 { | |
| 1000 char *fn, *p2; | |
| 386 | 1001 char *p3; |
| 356 | 1002 int delim = 0; |
| 1003 | |
| 1004 if (!**p) | |
| 1005 { | |
| 1006 lwasm_register_error(as, l, "Missing filename"); | |
| 1007 return; | |
| 1008 } | |
| 1009 | |
| 1010 if (**p == '"' || **p == '\'') | |
| 1011 { | |
| 1012 delim = **p; | |
| 1013 (*p)++; | |
| 1014 | |
| 1015 for (p2 = *p; *p2 && *p2 != delim; p2++) | |
| 1016 /* do nothing */ ; | |
| 1017 } | |
| 1018 else | |
| 1019 { | |
| 1020 for (p2 = *p; *p2 && !isspace(*p2); p2++) | |
| 1021 /* do nothing */ ; | |
| 1022 } | |
| 1023 fn = lw_strndup(*p, p2 - *p); | |
| 386 | 1024 (*p) = p2; |
| 356 | 1025 if (delim && **p) |
| 1026 (*p)++; | |
| 1027 | |
| 386 | 1028 0 == asprintf(&p3, "include:%s", fn); |
| 1029 input_open(as, p3); | |
| 1030 lw_free(p3); | |
| 356 | 1031 |
| 1032 l -> len = 0; | |
| 1033 } | |
| 1034 | |
| 1035 PARSEFUNC(pseudo_parse_align) | |
| 1036 { | |
| 1037 lw_expr_t e; | |
| 1038 if (!**p) | |
| 1039 { | |
| 1040 lwasm_register_error(as, l, "Bad operand"); | |
| 1041 return; | |
| 1042 } | |
| 1043 | |
| 1044 e = lwasm_parse_expr(as, p); | |
| 382 | 1045 |
| 356 | 1046 if (!e) |
| 1047 { | |
| 1048 lwasm_register_error(as, l, "Bad operand"); | |
| 1049 return; | |
| 1050 } | |
| 1051 | |
| 1052 lwasm_save_expr(l, 0, e); | |
| 1053 | |
| 1054 if (**p == ',') | |
| 1055 { | |
| 1056 e = lwasm_parse_expr(as, p); | |
| 1057 } | |
| 1058 else | |
| 1059 { | |
| 1060 e = lw_expr_build(lw_expr_type_int, 0); | |
| 1061 } | |
| 1062 if (!e) | |
| 1063 { | |
| 1064 lwasm_register_error(as, l, "Bad padding"); | |
| 1065 return; | |
| 1066 } | |
| 1067 | |
| 1068 lwasm_save_expr(l, 1, e); | |
| 1069 } | |
| 1070 | |
| 1071 RESOLVEFUNC(pseudo_resolve_align) | |
| 1072 { | |
| 1073 lw_expr_t e; | |
| 1074 int align; | |
| 1075 | |
| 1076 e = lwasm_fetch_expr(l, 0); | |
| 1077 | |
| 1078 if (lw_expr_istype(e, lw_expr_type_int)) | |
| 1079 { | |
| 1080 align = lw_expr_intval(e); | |
| 1081 if (align < 1) | |
| 1082 { | |
| 1083 lwasm_register_error(as, l, "Invalid alignment"); | |
| 1084 return; | |
| 1085 } | |
| 1086 } | |
| 1087 | |
| 1088 if (lw_expr_istype(l -> addr, lw_expr_type_int)) | |
| 1089 { | |
| 1090 int a; | |
| 1091 a = lw_expr_intval(l -> addr); | |
| 1092 if (a % align == 0) | |
| 1093 { | |
| 1094 l -> len = 0; | |
| 1095 return; | |
| 1096 } | |
| 1097 l -> len = align - (a % align); | |
| 1098 return; | |
| 1099 } | |
| 1100 } | |
| 1101 | |
| 1102 EMITFUNC(pseudo_emit_align) | |
| 1103 { | |
| 1104 lw_expr_t e; | |
| 1105 int i; | |
| 1106 | |
| 1107 e = lwasm_fetch_expr(l, 1); | |
| 1108 for (i = 0; i < l -> len; i++) | |
| 1109 { | |
| 1110 lwasm_emitexpr(l, e, 1); | |
| 1111 } | |
| 1112 } |