Mercurial > hg-old > index.cgi
annotate src/pseudo.c @ 57:035b95a3690f
Added conditional assembly and macros
| author | lost |
|---|---|
| date | Mon, 05 Jan 2009 00:01:21 +0000 |
| parents | 55260a178667 |
| children | d85ba47b1e8f |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 pseudo.c |
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3 Copyright © 2009 William Astle |
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4 |
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5 This file is part of LWASM. |
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6 |
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7 LWASM is free software: you can redistribute it and/or modify it under the |
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8 terms of the GNU General Public License as published by the Free Software |
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9 Foundation, either version 3 of the License, or (at your option) any later |
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10 version. |
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11 |
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12 This program is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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15 more details. |
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16 |
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17 You should have received a copy of the GNU General Public License along with |
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18 this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 |
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21 This file implements the various pseudo operations. |
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22 */ |
| 0 | 23 |
| 24 #include <stdlib.h> | |
| 50 | 25 #include <string.h> |
| 0 | 26 #include "lwasm.h" |
| 27 #include "instab.h" | |
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28 #include "expr.h" |
| 52 | 29 #include "util.h" |
| 0 | 30 |
| 52 | 31 extern int lwasm_read_file(asmstate_t *as, const char *filename); |
| 0 | 32 |
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33 OPFUNC(pseudo_org) |
| 0 | 34 { |
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35 int rval; |
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36 lwasm_expr_stack_t *s; |
| 52 | 37 |
| 38 if (as -> passnum != 1) | |
| 39 { | |
| 40 // org is not needed to be processed on pass 2 | |
| 41 // this will prevent phasing errors for forward references that | |
| 42 // resolve on the second pass | |
| 43 // we saved the org address in l -> codeaddr on pass 1 | |
| 44 as -> addr = l -> codeaddr; | |
| 45 return; | |
| 46 } | |
| 0 | 47 |
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48 if (l -> sym) |
| 0 | 49 { |
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50 register_error(as, l, 1, "No symbol allowed with ORG"); |
| 0 | 51 } |
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52 s = lwasm_evaluate_expr(as, l, *p, NULL); |
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53 if (!s) |
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54 { |
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55 register_error(as, l, 1, "Bad expression"); |
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56 return; |
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57 } |
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58 if (!lwasm_expr_is_constant(s)) |
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59 { |
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60 register_error(as, l, 1, "Illegal incomplete reference (pass 1)"); |
| 50 | 61 lwasm_expr_stack_free(s); |
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62 return; |
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63 } |
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64 rval = lwasm_expr_get_value(s) & 0xffff; |
| 50 | 65 lwasm_expr_stack_free(s); |
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66 l -> codeaddr = rval; |
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67 l -> addrset = 1; |
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68 as -> addr = rval; |
| 0 | 69 } |
| 70 | |
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71 /* |
| 52 | 72 The operand for include is a string optionally enclosed in " |
| 73 */ | |
| 74 OPFUNC(pseudo_include) | |
| 0 | 75 { |
| 76 int v1; | |
| 52 | 77 char *fn; |
| 57 | 78 |
| 52 | 79 // only include files on pass 1 |
| 80 // but make sure local include context is right | |
| 81 // for the next line... | |
| 0 | 82 if (as -> passnum != 1) |
| 52 | 83 { |
| 57 | 84 as -> context = lwasm_next_context(as); |
| 0 | 85 return; |
| 52 | 86 } |
| 87 | |
| 88 while (**p && isspace(**p)) | |
| 89 (*p)++; | |
| 90 | |
| 91 if (!**p) | |
| 0 | 92 { |
| 52 | 93 register_error(as, l, 1, "Bad file name"); |
| 0 | 94 return; |
| 95 } | |
| 52 | 96 |
| 97 if (**p == '"') | |
| 98 { | |
| 99 // search for ending " | |
| 100 (*p)++; | |
| 101 for (v1 = 0; *((*p)+v1) && *((*p)+v1) != '"'; v1++) | |
| 102 /* do nothing */ ; | |
| 103 if (*((*p)+v1) != '"') | |
| 104 { | |
| 105 register_error(as, l, 1, "Bad file name"); | |
| 106 return; | |
| 107 } | |
| 108 } | |
| 109 else | |
| 0 | 110 { |
| 52 | 111 // search for a space type character |
| 112 for (v1 = 0; *((*p)+v1) && !isspace(*((*p)+v1)); v1++) | |
| 113 ; | |
| 0 | 114 } |
| 52 | 115 |
| 116 fn = lwasm_alloc(v1 + 1); | |
| 117 memcpy(fn, *p, v1); | |
| 118 fn[v1] = '\0'; | |
| 119 | |
| 120 // end local label context on include | |
| 57 | 121 as -> context = lwasm_next_context(as); |
| 52 | 122 if (lwasm_read_file(as, fn) < 0) |
| 123 { | |
| 124 register_error(as, l, 1, "File include error (%s)", fn); | |
| 125 } | |
| 126 lwasm_free(fn); | |
| 0 | 127 } |
| 128 | |
| 50 | 129 OPFUNC(pseudo_rmb) |
| 0 | 130 { |
| 50 | 131 int rval; |
| 132 lwasm_expr_stack_t *s; | |
| 0 | 133 |
| 50 | 134 s = lwasm_evaluate_expr(as, l, *p, NULL); |
| 135 if (!s) | |
| 0 | 136 { |
| 50 | 137 register_error(as, l, 1, "Bad expression"); |
| 0 | 138 return; |
| 139 } | |
| 50 | 140 if (!lwasm_expr_is_constant(s)) |
| 0 | 141 { |
| 50 | 142 register_error(as, l, 1, "Illegal incomplete reference (pass 1)"); |
| 143 lwasm_expr_stack_free(s); | |
| 0 | 144 return; |
| 145 } | |
| 50 | 146 rval = lwasm_expr_get_value(s); |
| 147 lwasm_expr_stack_free(s); | |
| 148 l -> nocodelen = rval; | |
| 149 as -> addr += rval; | |
| 0 | 150 } |
| 53 | 151 |
| 152 OPFUNC(pseudo_rmd) | |
| 0 | 153 { |
| 53 | 154 int rval; |
| 155 lwasm_expr_stack_t *s; | |
| 0 | 156 |
| 53 | 157 s = lwasm_evaluate_expr(as, l, *p, NULL); |
| 158 if (!s) | |
| 0 | 159 { |
| 53 | 160 register_error(as, l, 1, "Bad expression"); |
| 0 | 161 return; |
| 162 } | |
| 53 | 163 if (!lwasm_expr_is_constant(s)) |
| 0 | 164 { |
| 53 | 165 register_error(as, l, 1, "Illegal incomplete reference (pass 1)"); |
| 166 lwasm_expr_stack_free(s); | |
| 0 | 167 return; |
| 168 } | |
| 53 | 169 rval = lwasm_expr_get_value(s) * 2; |
| 170 lwasm_expr_stack_free(s); | |
| 171 l -> nocodelen = rval; | |
| 172 as -> addr += rval; | |
| 0 | 173 } |
| 174 | |
| 53 | 175 OPFUNC(pseudo_rmq) |
| 0 | 176 { |
| 53 | 177 int rval; |
| 178 lwasm_expr_stack_t *s; | |
| 0 | 179 |
| 53 | 180 s = lwasm_evaluate_expr(as, l, *p, NULL); |
| 181 if (!s) | |
| 0 | 182 { |
| 53 | 183 register_error(as, l, 1, "Bad expression"); |
| 0 | 184 return; |
| 185 } | |
| 53 | 186 if (!lwasm_expr_is_constant(s)) |
| 0 | 187 { |
| 53 | 188 register_error(as, l, 1, "Illegal incomplete reference (pass 1)"); |
| 189 lwasm_expr_stack_free(s); | |
| 0 | 190 return; |
| 191 } | |
| 53 | 192 rval = lwasm_expr_get_value(s) * 4; |
| 193 lwasm_expr_stack_free(s); | |
| 194 l -> nocodelen = rval; | |
| 195 as -> addr += rval; | |
| 0 | 196 } |
| 197 | |
| 53 | 198 OPFUNC(pseudo_zmb) |
| 0 | 199 { |
| 53 | 200 int rval; |
| 201 lwasm_expr_stack_t *s; | |
| 0 | 202 |
| 53 | 203 s = lwasm_evaluate_expr(as, l, *p, NULL); |
| 204 if (!s) | |
| 0 | 205 { |
| 53 | 206 register_error(as, l, 1, "Bad expression"); |
| 0 | 207 return; |
| 208 } | |
| 53 | 209 if (!lwasm_expr_is_constant(s)) |
| 0 | 210 { |
| 53 | 211 register_error(as, l, 1, "Illegal incomplete reference (pass 1)"); |
| 212 lwasm_expr_stack_free(s); | |
| 0 | 213 return; |
| 214 } | |
| 53 | 215 rval = lwasm_expr_get_value(s); |
| 216 lwasm_expr_stack_free(s); | |
| 217 while (rval-- > 0) | |
| 0 | 218 { |
| 53 | 219 lwasm_emit(as, l, 0); |
| 0 | 220 } |
| 221 } | |
| 222 | |
| 53 | 223 OPFUNC(pseudo_zmd) |
| 0 | 224 { |
| 53 | 225 int rval; |
| 226 lwasm_expr_stack_t *s; | |
| 0 | 227 |
| 53 | 228 s = lwasm_evaluate_expr(as, l, *p, NULL); |
| 229 if (!s) | |
| 0 | 230 { |
| 53 | 231 register_error(as, l, 1, "Bad expression"); |
| 0 | 232 return; |
| 233 } | |
| 53 | 234 if (!lwasm_expr_is_constant(s)) |
| 0 | 235 { |
| 53 | 236 register_error(as, l, 1, "Illegal incomplete reference (pass 1)"); |
| 237 lwasm_expr_stack_free(s); | |
| 0 | 238 return; |
| 239 } | |
| 53 | 240 rval = lwasm_expr_get_value(s); |
| 241 lwasm_expr_stack_free(s); | |
| 242 while (rval-- > 0) | |
| 0 | 243 { |
| 53 | 244 lwasm_emit(as, l, 0); |
| 245 lwasm_emit(as, l, 0); | |
| 0 | 246 } |
| 247 } | |
| 248 | |
| 53 | 249 OPFUNC(pseudo_zmq) |
| 250 { | |
| 251 int rval; | |
| 252 lwasm_expr_stack_t *s; | |
| 253 | |
| 254 s = lwasm_evaluate_expr(as, l, *p, NULL); | |
| 255 if (!s) | |
| 256 { | |
| 257 register_error(as, l, 1, "Bad expression"); | |
| 258 return; | |
| 259 } | |
| 260 if (!lwasm_expr_is_constant(s)) | |
| 261 { | |
| 262 register_error(as, l, 1, "Illegal incomplete reference (pass 1)"); | |
| 263 lwasm_expr_stack_free(s); | |
| 264 return; | |
| 265 } | |
| 266 rval = lwasm_expr_get_value(s); | |
| 267 lwasm_expr_stack_free(s); | |
| 268 while (rval-- > 0) | |
| 269 { | |
| 270 lwasm_emit(as, l, 0); | |
| 271 lwasm_emit(as, l, 0); | |
| 272 lwasm_emit(as, l, 0); | |
| 273 lwasm_emit(as, l, 0); | |
| 274 } | |
| 275 } | |
| 276 | |
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277 OPFUNC(pseudo_end) |
| 0 | 278 { |
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279 int rval; |
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280 lwasm_expr_stack_t *s; |
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281 |
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282 |
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283 as -> endseen = 1; |
| 0 | 284 |
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285 // address only matters for DECB output |
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286 if (as -> outformat != OUTPUT_DECB) |
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287 return; |
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288 |
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289 s = lwasm_evaluate_expr(as, l, *p, NULL); |
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290 if (!s) |
| 0 | 291 { |
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292 register_error(as, l, 1, "Bad expression"); |
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293 return; |
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294 } |
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295 if (!lwasm_expr_is_constant(s)) |
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296 { |
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297 register_error(as, l, 2, "Incomplete reference"); |
| 0 | 298 } |
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299 rval = lwasm_expr_get_value(s); |
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300 lwasm_expr_stack_free(s); |
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301 |
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302 rval = rval & 0xffff; |
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303 if (as -> passnum == 2) |
| 0 | 304 { |
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305 as -> execaddr = rval; |
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306 l -> symaddr = rval; |
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307 l -> addrset = 2; |
| 0 | 308 } |
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309 } |
| 0 | 310 |
| 56 | 311 |
| 312 OPFUNC(pseudo_align) | |
| 0 | 313 { |
| 56 | 314 int rval; |
| 315 lwasm_expr_stack_t *s; | |
| 0 | 316 int cn; |
| 317 | |
| 56 | 318 if (as -> passnum == 2) |
| 0 | 319 { |
| 56 | 320 while (as -> addr < l -> symaddr) |
| 321 lwasm_emit(as, l, 0); | |
| 322 return; | |
| 323 } | |
| 324 | |
| 325 s = lwasm_evaluate_expr(as, l, *p, NULL); | |
| 326 if (!s) | |
| 327 { | |
| 328 register_error(as, l, 1, "Bad expression"); | |
| 0 | 329 return; |
| 330 } | |
| 56 | 331 if (!lwasm_expr_is_constant(s)) |
| 332 { | |
| 333 register_error(as, l, 1, "Illegal incomplete reference (pass 1)"); | |
| 334 } | |
| 335 rval = lwasm_expr_get_value(s); | |
| 336 lwasm_expr_stack_free(s); | |
| 0 | 337 |
| 56 | 338 if (rval < 1) |
| 0 | 339 { |
| 56 | 340 register_error(as, l, 1, "Illegal alignment %d", rval); |
| 341 return; | |
| 0 | 342 } |
| 56 | 343 |
| 344 cn = l -> codeaddr % rval; | |
| 345 if (cn) | |
| 346 cn = rval - cn; | |
| 347 | |
| 348 while (cn--) | |
| 349 { | |
| 350 lwasm_emit(as, l, 0); | |
| 351 } | |
| 352 l -> symaddr = as -> addr; | |
| 0 | 353 } |
| 56 | 354 |
| 50 | 355 OPFUNC(pseudo_equ) |
| 0 | 356 { |
| 50 | 357 lwasm_expr_stack_t *s; |
| 358 int rval; | |
| 52 | 359 |
| 360 // equ is not needed to be processed on pass 2 | |
| 361 if (as -> passnum != 1) | |
| 362 return; | |
| 363 | |
| 50 | 364 if (l -> sym == NULL) |
| 0 | 365 { |
| 50 | 366 register_error(as, l, 1, "No symbol specified"); |
| 0 | 367 return; |
| 368 } | |
| 50 | 369 |
| 370 s = lwasm_evaluate_expr(as, l, *p, NULL); | |
| 371 | |
| 372 if (!s) | |
| 0 | 373 { |
| 50 | 374 register_error(as, l, 1, "Bad expression"); |
| 375 rval = 0; | |
| 0 | 376 } |
| 50 | 377 else |
| 0 | 378 { |
| 50 | 379 if (!lwasm_expr_is_constant(s)) |
| 380 register_error(as, l, 1, "Invalid incomplete reference (pass 1)"); | |
| 381 rval = lwasm_expr_get_value(s); | |
| 382 lwasm_expr_stack_free(s); | |
| 0 | 383 } |
| 50 | 384 l -> symaddr = rval & 0xFFFF; |
| 385 l -> addrset = 2; | |
| 386 if (strchr(l -> sym, '@') || strchr(l -> sym, '?')) | |
| 387 lwasm_set_symbol(as, l -> sym, as -> context, l -> symaddr); | |
| 388 else | |
| 389 lwasm_set_symbol(as, l -> sym, -1, l -> symaddr); | |
| 0 | 390 } |
| 50 | 391 /* |
| 0 | 392 void pseudo_set(asmstate_t *as, sourceline_t *cl, char **optr) |
| 393 { | |
| 394 int rval, v1; | |
| 395 | |
| 396 if (cl -> hassym == 0) | |
| 397 { | |
| 398 errorp1(ERR_NOSYM); | |
| 399 return; | |
| 400 } | |
| 401 rval = eval_expr(as, cl, optr, &v1); | |
| 402 // eval_expr returns -1 if there was a forward ref | |
| 403 // or -2 if the expr was invalid | |
| 404 if (rval == -2) | |
| 405 { | |
| 406 // carp | |
| 407 errorp1(ERR_FORWARD); | |
| 408 } | |
| 409 if (rval < 0) | |
| 410 { | |
| 411 // remove symbol ref | |
| 412 cl -> hassym = 0; | |
| 413 // mark as a "comment" so it isn't processed next time | |
| 414 cl -> opcode = -1; | |
| 415 return; | |
| 416 } | |
| 417 cl -> code_symloc = v1; | |
| 418 cl -> isset = 1; | |
| 419 cl -> isequ = 1; | |
| 420 cl -> symaddr = v1 & 0xFFFF; | |
| 421 } | |
| 422 | |
| 423 void pseudo_setdp(asmstate_t *as, sourceline_t *cl, char **optr) | |
| 424 { | |
| 425 int rval, v1; | |
| 426 | |
| 427 if (cl -> hassym) | |
| 428 { | |
| 429 register_error(as, cl, ERR_SYM); | |
| 430 cl -> hassym = 0; | |
| 431 return; | |
| 432 } | |
| 433 else | |
| 434 { | |
| 435 rval = eval_expr(as, cl, optr, &v1); | |
| 436 if (rval == -1) | |
| 437 { | |
| 438 errorp1(ERR_FORWARD); | |
| 439 } | |
| 440 if (rval < 0) | |
| 441 { | |
| 442 cl -> opcode = -1; | |
| 443 return; | |
| 444 } | |
| 445 } | |
| 446 // setdp needs to resolve properly on pass 2 | |
| 447 if (v1 > 0xff || v1 < 0) | |
| 448 { | |
| 449 errorp1(ERR_OVERFLOW); | |
| 450 } | |
| 451 as -> dpval = v1 & 0xff; | |
| 452 cl -> dpval = v1 & 0xff; | |
| 453 cl -> issetdp = 1; | |
| 454 cl -> numcodebytes = 0; | |
| 455 //printf("%s\n", "SETDP2"); | |
| 456 } | |
| 56 | 457 */ |
| 0 | 458 |
| 56 | 459 OPFUNC(pseudo_fcc) |
| 460 { | |
| 0 | 461 int delim = 0; |
| 462 | |
| 56 | 463 delim = **p; |
| 0 | 464 if (!delim) |
| 465 { | |
| 56 | 466 register_error(as, l, 1, "Bad operand"); |
| 467 return; | |
| 0 | 468 } |
| 56 | 469 *p += 1; |
| 470 while (**p && **p != delim) | |
| 0 | 471 { |
| 56 | 472 lwasm_emit(as, l, **p); |
| 473 (*p)++; | |
| 0 | 474 } |
| 56 | 475 if (**p) |
| 476 (*p)++; | |
| 0 | 477 } |
| 478 | |
| 56 | 479 |
| 480 OPFUNC(pseudo_fcs) | |
| 0 | 481 { |
| 482 int delim = 0; | |
| 56 | 483 |
| 484 delim = **p; | |
| 0 | 485 if (!delim) |
| 486 { | |
| 56 | 487 register_error(as, l, 1, "Bad operand"); |
| 488 return; | |
| 0 | 489 } |
| 56 | 490 *p += 1; |
| 491 while (**p && **p != delim) | |
| 0 | 492 { |
| 56 | 493 if (!*((*p) + 1) || *((*p) + 1) == delim) |
| 494 lwasm_emit(as, l, **p | 0x80); | |
| 495 else | |
| 496 lwasm_emit(as, l, **p); | |
| 497 (*p)++; | |
| 0 | 498 } |
| 56 | 499 if (**p) |
| 500 (*p)++; | |
| 0 | 501 } |
| 502 | |
| 56 | 503 OPFUNC(pseudo_fcn) |
| 0 | 504 { |
| 505 int delim = 0; | |
| 506 | |
| 56 | 507 delim = **p; |
| 0 | 508 if (!delim) |
| 509 { | |
| 56 | 510 register_error(as, l, 1, "Bad operand"); |
| 511 return; | |
| 0 | 512 } |
| 56 | 513 *p += 1; |
| 514 while (**p && **p != delim) | |
| 0 | 515 { |
| 56 | 516 lwasm_emit(as, l, **p); |
| 517 (*p)++; | |
| 0 | 518 } |
| 56 | 519 if (**p) |
| 520 (*p)++; | |
| 521 lwasm_emit(as, l, 0); | |
| 0 | 522 } |
| 56 | 523 |
| 524 OPFUNC(pseudo_fcb) | |
| 0 | 525 { |
| 56 | 526 int v1; |
| 0 | 527 |
| 528 fcb_again: | |
| 56 | 529 if (lwasm_expr_result(as, l, p, EXPR_PASS2CONST | EXPR_BYTE, &v1) < 0) |
| 530 return; | |
| 531 | |
| 532 lwasm_emit(as, l, v1); | |
| 533 if (**p == ',') | |
| 0 | 534 { |
| 56 | 535 (*p)++; |
| 0 | 536 goto fcb_again; |
| 537 } | |
| 538 } | |
| 539 | |
| 56 | 540 OPFUNC(pseudo_fdb) |
| 0 | 541 { |
| 56 | 542 int v1; |
| 0 | 543 |
| 544 fdb_again: | |
| 56 | 545 if (lwasm_expr_result(as, l, p, EXPR_PASS2CONST, &v1) < 0) |
| 546 return; | |
| 547 | |
| 548 lwasm_emit(as, l, v1 >> 8); | |
| 549 lwasm_emit(as, l, v1 & 0xff); | |
| 550 if (**p == ',') | |
| 0 | 551 { |
| 56 | 552 (*p)++; |
| 0 | 553 goto fdb_again; |
| 554 } | |
| 555 } | |
| 556 | |
| 56 | 557 OPFUNC(pseudo_fqb) |
| 0 | 558 { |
| 56 | 559 int v1; |
| 560 | |
| 0 | 561 fqb_again: |
| 56 | 562 if (lwasm_expr_result(as, l, p, EXPR_PASS2CONST, &v1) < 0) |
| 563 return; | |
| 564 | |
| 565 lwasm_emit(as, l, v1 >> 24); | |
| 566 lwasm_emit(as, l, v1 >> 16); | |
| 567 lwasm_emit(as, l, v1 >> 8); | |
| 568 lwasm_emit(as, l, v1 & 0xff); | |
| 569 if (**p == ',') | |
| 0 | 570 { |
| 56 | 571 (*p)++; |
| 0 | 572 goto fqb_again; |
| 573 } | |
| 574 } | |
| 575 | |
| 576 // don't need to do anything if we are executing one of these | |
| 57 | 577 OPFUNC(pseudo_endc) |
| 0 | 578 { |
| 57 | 579 if (as -> skipcond && !(as -> skipmacro)) |
| 580 { | |
| 581 as -> skipcount -= 1; | |
| 582 if (as -> skipcount <= 0) | |
| 583 { | |
| 584 as -> skipcond = 0; | |
| 585 } | |
| 586 } | |
| 0 | 587 return; |
| 588 } | |
| 589 | |
| 590 // if "else" executes, we must be going into an "ignore" state | |
| 57 | 591 OPFUNC(pseudo_else) |
| 0 | 592 { |
| 57 | 593 if (as -> skipmacro) |
| 594 return; | |
| 595 | |
| 596 if (as -> skipcond) | |
| 597 { | |
| 598 if (as -> skipcount == 1) | |
| 599 { | |
| 600 as -> skipcount = 0; | |
| 601 as -> skipcond = 0; | |
| 602 } | |
| 603 return; | |
| 604 } | |
| 605 | |
| 0 | 606 as -> skipcond = 1; |
| 607 as -> skipcount = 1; | |
| 608 } | |
| 609 | |
| 57 | 610 OPFUNC(pseudo_ifne) |
| 0 | 611 { |
| 612 int v1; | |
| 613 int rval; | |
| 57 | 614 |
| 615 if (as -> skipcond && !(as -> skipmacro)) | |
| 0 | 616 { |
| 57 | 617 as -> skipcount++; |
| 618 return; | |
| 619 } | |
| 620 | |
| 621 rval = lwasm_expr_result(as, l, p, EXPR_PASS1CONST, &v1); | |
| 622 if (rval < 0) | |
| 623 return; | |
| 624 if (!v1) | |
| 625 { | |
| 626 as -> skipcond = 1; | |
| 627 as -> skipcount = 1; | |
| 0 | 628 } |
| 629 } | |
| 57 | 630 |
| 631 OPFUNC(pseudo_ifeq) | |
| 0 | 632 { |
| 633 int v1; | |
| 634 int rval; | |
| 57 | 635 |
| 636 if (as -> skipcond && !(as -> skipmacro)) | |
| 0 | 637 { |
| 57 | 638 as -> skipcount++; |
| 639 return; | |
| 0 | 640 } |
| 57 | 641 |
| 642 rval = lwasm_expr_result(as, l, p, EXPR_PASS1CONST, &v1); | |
| 643 if (rval < 0) | |
| 644 return; | |
| 645 if (v1) | |
| 0 | 646 { |
| 57 | 647 as -> skipcond = 1; |
| 648 as -> skipcount = 1; | |
| 0 | 649 } |
| 650 } | |
| 57 | 651 |
| 652 OPFUNC(pseudo_iflt) | |
| 0 | 653 { |
| 654 int v1; | |
| 655 int rval; | |
| 57 | 656 |
| 657 if (as -> skipcond && !(as -> skipmacro)) | |
| 0 | 658 { |
| 57 | 659 as -> skipcount++; |
| 660 return; | |
| 0 | 661 } |
| 57 | 662 |
| 663 rval = lwasm_expr_result(as, l, p, EXPR_PASS1CONST, &v1); | |
| 664 if (rval < 0) | |
| 665 return; | |
| 666 if (v1 >= 0) | |
| 0 | 667 { |
| 57 | 668 as -> skipcond = 1; |
| 669 as -> skipcount = 1; | |
| 0 | 670 } |
| 671 } | |
| 57 | 672 |
| 673 OPFUNC(pseudo_ifle) | |
| 0 | 674 { |
| 675 int v1; | |
| 676 int rval; | |
| 57 | 677 |
| 678 if (as -> skipcond && !(as -> skipmacro)) | |
| 0 | 679 { |
| 57 | 680 as -> skipcount++; |
| 681 return; | |
| 0 | 682 } |
| 57 | 683 |
| 684 rval = lwasm_expr_result(as, l, p, EXPR_PASS1CONST, &v1); | |
| 685 if (rval < 0) | |
| 686 return; | |
| 687 if (v1 > 0) | |
| 0 | 688 { |
| 57 | 689 as -> skipcond = 1; |
| 690 as -> skipcount = 1; | |
| 0 | 691 } |
| 692 } | |
| 57 | 693 |
| 694 OPFUNC(pseudo_ifgt) | |
| 0 | 695 { |
| 696 int v1; | |
| 697 int rval; | |
| 57 | 698 |
| 699 if (as -> skipcond && !(as -> skipmacro)) | |
| 0 | 700 { |
| 57 | 701 as -> skipcount++; |
| 702 return; | |
| 0 | 703 } |
| 57 | 704 |
| 705 rval = lwasm_expr_result(as, l, p, EXPR_PASS1CONST, &v1); | |
| 706 if (rval < 0) | |
| 707 return; | |
| 708 if (v1 <= 0) | |
| 0 | 709 { |
| 57 | 710 as -> skipcond = 1; |
| 711 as -> skipcount = 1; | |
| 0 | 712 } |
| 713 } | |
| 57 | 714 |
| 715 OPFUNC(pseudo_ifge) | |
| 0 | 716 { |
| 717 int v1; | |
| 718 int rval; | |
| 57 | 719 |
| 720 if (as -> skipcond && !(as -> skipmacro)) | |
| 0 | 721 { |
| 57 | 722 as -> skipcount++; |
| 723 return; | |
| 0 | 724 } |
| 57 | 725 |
| 726 rval = lwasm_expr_result(as, l, p, EXPR_PASS1CONST, &v1); | |
| 727 if (rval < 0) | |
| 728 return; | |
| 729 if (v1 < 0) | |
| 0 | 730 { |
| 57 | 731 as -> skipcond = 1; |
| 732 as -> skipcount = 1; | |
| 0 | 733 } |
| 734 } | |
| 735 | |
| 56 | 736 OPFUNC(pseudo_error) |
| 0 | 737 { |
| 56 | 738 register_error(as, l, 1, "User error: %s", *p); |
| 0 | 739 } |
| 56 | 740 |