| 1 | /* Assembler interface for targets using CGEN. -*- C -*- |
| 2 | CGEN: Cpu tools GENerator |
| 3 | |
| 4 | THIS FILE IS MACHINE GENERATED WITH CGEN. |
| 5 | - the resultant file is machine generated, cgen-asm.in isn't |
| 6 | |
| 7 | Copyright 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
| 8 | |
| 9 | This file is part of the GNU Binutils and GDB, the GNU debugger. |
| 10 | |
| 11 | This program is free software; you can redistribute it and/or modify |
| 12 | it under the terms of the GNU General Public License as published by |
| 13 | the Free Software Foundation; either version 2, or (at your option) |
| 14 | any later version. |
| 15 | |
| 16 | This program is distributed in the hope that it will be useful, |
| 17 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | GNU General Public License for more details. |
| 20 | |
| 21 | You should have received a copy of the GNU General Public License |
| 22 | along with this program; if not, write to the Free Software Foundation, Inc., |
| 23 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 24 | |
| 25 | /* ??? Eventually more and more of this stuff can go to cpu-independent files. |
| 26 | Keep that in mind. */ |
| 27 | |
| 28 | #include "sysdep.h" |
| 29 | #include <stdio.h> |
| 30 | #include "ansidecl.h" |
| 31 | #include "bfd.h" |
| 32 | #include "symcat.h" |
| 33 | #include "frv-desc.h" |
| 34 | #include "frv-opc.h" |
| 35 | #include "opintl.h" |
| 36 | #include "xregex.h" |
| 37 | #include "libiberty.h" |
| 38 | #include "safe-ctype.h" |
| 39 | |
| 40 | #undef min |
| 41 | #define min(a,b) ((a) < (b) ? (a) : (b)) |
| 42 | #undef max |
| 43 | #define max(a,b) ((a) > (b) ? (a) : (b)) |
| 44 | |
| 45 | static const char * parse_insn_normal |
| 46 | (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *); |
| 47 | \f |
| 48 | /* -- assembler routines inserted here. */ |
| 49 | |
| 50 | /* -- asm.c */ |
| 51 | static const char * parse_ulo16 |
| 52 | PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *)); |
| 53 | static const char * parse_uslo16 |
| 54 | PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *)); |
| 55 | static const char * parse_uhi16 |
| 56 | PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *)); |
| 57 | static long parse_register_number |
| 58 | PARAMS ((const char **)); |
| 59 | static const char * parse_spr |
| 60 | PARAMS ((CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *)); |
| 61 | static const char * parse_d12 |
| 62 | PARAMS ((CGEN_CPU_DESC, const char **, int, long *)); |
| 63 | static const char * parse_s12 |
| 64 | PARAMS ((CGEN_CPU_DESC, const char **, int, long *)); |
| 65 | static const char * parse_u12 |
| 66 | PARAMS ((CGEN_CPU_DESC, const char **, int, long *)); |
| 67 | static const char * parse_even_register |
| 68 | PARAMS ((CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *)); |
| 69 | static const char * parse_A0 |
| 70 | PARAMS ((CGEN_CPU_DESC, const char **, int, long *)); |
| 71 | static const char * parse_A1 |
| 72 | PARAMS ((CGEN_CPU_DESC, const char **, int, long *)); |
| 73 | static const char * parse_A |
| 74 | PARAMS ((CGEN_CPU_DESC, const char **, int, long *, long)); |
| 75 | |
| 76 | static const char * |
| 77 | parse_ulo16 (cd, strp, opindex, valuep) |
| 78 | CGEN_CPU_DESC cd; |
| 79 | const char **strp; |
| 80 | int opindex; |
| 81 | unsigned long *valuep; |
| 82 | { |
| 83 | const char *errmsg; |
| 84 | enum cgen_parse_operand_result result_type; |
| 85 | bfd_vma value; |
| 86 | |
| 87 | if (**strp == '#' || **strp == '%') |
| 88 | { |
| 89 | if (strncasecmp (*strp + 1, "lo(", 3) == 0) |
| 90 | { |
| 91 | *strp += 4; |
| 92 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_LO16, |
| 93 | &result_type, &value); |
| 94 | if (**strp != ')') |
| 95 | return "missing `)'"; |
| 96 | ++*strp; |
| 97 | if (errmsg == NULL |
| 98 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 99 | value &= 0xffff; |
| 100 | *valuep = value; |
| 101 | return errmsg; |
| 102 | } |
| 103 | if (strncasecmp (*strp + 1, "gprello(", 8) == 0) |
| 104 | { |
| 105 | *strp += 9; |
| 106 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELLO, |
| 107 | &result_type, &value); |
| 108 | if (**strp != ')') |
| 109 | return "missing ')'"; |
| 110 | ++*strp; |
| 111 | if (errmsg == NULL |
| 112 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 113 | value &= 0xffff; |
| 114 | *valuep = value; |
| 115 | return errmsg; |
| 116 | } |
| 117 | else if (strncasecmp (*strp + 1, "gotlo(", 6) == 0) |
| 118 | { |
| 119 | *strp += 7; |
| 120 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GOTLO, |
| 121 | &result_type, &value); |
| 122 | if (**strp != ')') |
| 123 | return "missing ')'"; |
| 124 | ++*strp; |
| 125 | if (errmsg == NULL |
| 126 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 127 | value &= 0xffff; |
| 128 | *valuep = value; |
| 129 | return errmsg; |
| 130 | } |
| 131 | else if (strncasecmp (*strp + 1, "gotfuncdesclo(", 14) == 0) |
| 132 | { |
| 133 | *strp += 15; |
| 134 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 135 | BFD_RELOC_FRV_FUNCDESC_GOTLO, |
| 136 | &result_type, &value); |
| 137 | if (**strp != ')') |
| 138 | return "missing ')'"; |
| 139 | ++*strp; |
| 140 | if (errmsg == NULL |
| 141 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 142 | value &= 0xffff; |
| 143 | *valuep = value; |
| 144 | return errmsg; |
| 145 | } |
| 146 | else if (strncasecmp (*strp + 1, "gotofflo(", 9) == 0) |
| 147 | { |
| 148 | *strp += 10; |
| 149 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 150 | BFD_RELOC_FRV_GOTOFFLO, |
| 151 | &result_type, &value); |
| 152 | if (**strp != ')') |
| 153 | return "missing ')'"; |
| 154 | ++*strp; |
| 155 | if (errmsg == NULL |
| 156 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 157 | value &= 0xffff; |
| 158 | *valuep = value; |
| 159 | return errmsg; |
| 160 | } |
| 161 | else if (strncasecmp (*strp + 1, "gotofffuncdesclo(", 17) == 0) |
| 162 | { |
| 163 | *strp += 18; |
| 164 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 165 | BFD_RELOC_FRV_FUNCDESC_GOTOFFLO, |
| 166 | &result_type, &value); |
| 167 | if (**strp != ')') |
| 168 | return "missing ')'"; |
| 169 | ++*strp; |
| 170 | if (errmsg == NULL |
| 171 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 172 | value &= 0xffff; |
| 173 | *valuep = value; |
| 174 | return errmsg; |
| 175 | } |
| 176 | } |
| 177 | return cgen_parse_signed_integer (cd, strp, opindex, valuep); |
| 178 | } |
| 179 | |
| 180 | static const char * |
| 181 | parse_uslo16 (cd, strp, opindex, valuep) |
| 182 | CGEN_CPU_DESC cd; |
| 183 | const char **strp; |
| 184 | int opindex; |
| 185 | unsigned long *valuep; |
| 186 | { |
| 187 | const char *errmsg; |
| 188 | enum cgen_parse_operand_result result_type; |
| 189 | bfd_vma value; |
| 190 | |
| 191 | if (**strp == '#' || **strp == '%') |
| 192 | { |
| 193 | if (strncasecmp (*strp + 1, "lo(", 3) == 0) |
| 194 | { |
| 195 | *strp += 4; |
| 196 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_LO16, |
| 197 | &result_type, &value); |
| 198 | if (**strp != ')') |
| 199 | return "missing `)'"; |
| 200 | ++*strp; |
| 201 | if (errmsg == NULL |
| 202 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 203 | value &= 0xffff; |
| 204 | *valuep = value; |
| 205 | return errmsg; |
| 206 | } |
| 207 | else if (strncasecmp (*strp + 1, "gprello(", 8) == 0) |
| 208 | { |
| 209 | *strp += 9; |
| 210 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELLO, |
| 211 | &result_type, &value); |
| 212 | if (**strp != ')') |
| 213 | return "missing ')'"; |
| 214 | ++*strp; |
| 215 | if (errmsg == NULL |
| 216 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 217 | value &= 0xffff; |
| 218 | *valuep = value; |
| 219 | return errmsg; |
| 220 | } |
| 221 | else if (strncasecmp (*strp + 1, "gotlo(", 6) == 0) |
| 222 | { |
| 223 | *strp += 7; |
| 224 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GOTLO, |
| 225 | &result_type, &value); |
| 226 | if (**strp != ')') |
| 227 | return "missing ')'"; |
| 228 | ++*strp; |
| 229 | if (errmsg == NULL |
| 230 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 231 | value &= 0xffff; |
| 232 | *valuep = value; |
| 233 | return errmsg; |
| 234 | } |
| 235 | else if (strncasecmp (*strp + 1, "gotfuncdesclo(", 14) == 0) |
| 236 | { |
| 237 | *strp += 15; |
| 238 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 239 | BFD_RELOC_FRV_FUNCDESC_GOTLO, |
| 240 | &result_type, &value); |
| 241 | if (**strp != ')') |
| 242 | return "missing ')'"; |
| 243 | ++*strp; |
| 244 | if (errmsg == NULL |
| 245 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 246 | value &= 0xffff; |
| 247 | *valuep = value; |
| 248 | return errmsg; |
| 249 | } |
| 250 | else if (strncasecmp (*strp + 1, "gotofflo(", 9) == 0) |
| 251 | { |
| 252 | *strp += 10; |
| 253 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 254 | BFD_RELOC_FRV_GOTOFFLO, |
| 255 | &result_type, &value); |
| 256 | if (**strp != ')') |
| 257 | return "missing ')'"; |
| 258 | ++*strp; |
| 259 | if (errmsg == NULL |
| 260 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 261 | value &= 0xffff; |
| 262 | *valuep = value; |
| 263 | return errmsg; |
| 264 | } |
| 265 | else if (strncasecmp (*strp + 1, "gotofffuncdesclo(", 17) == 0) |
| 266 | { |
| 267 | *strp += 18; |
| 268 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 269 | BFD_RELOC_FRV_FUNCDESC_GOTOFFLO, |
| 270 | &result_type, &value); |
| 271 | if (**strp != ')') |
| 272 | return "missing ')'"; |
| 273 | ++*strp; |
| 274 | if (errmsg == NULL |
| 275 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 276 | value &= 0xffff; |
| 277 | *valuep = value; |
| 278 | return errmsg; |
| 279 | } |
| 280 | } |
| 281 | return cgen_parse_unsigned_integer (cd, strp, opindex, valuep); |
| 282 | } |
| 283 | |
| 284 | static const char * |
| 285 | parse_uhi16 (cd, strp, opindex, valuep) |
| 286 | CGEN_CPU_DESC cd; |
| 287 | const char **strp; |
| 288 | int opindex; |
| 289 | unsigned long *valuep; |
| 290 | { |
| 291 | const char *errmsg; |
| 292 | enum cgen_parse_operand_result result_type; |
| 293 | bfd_vma value; |
| 294 | |
| 295 | if (**strp == '#' || **strp == '%') |
| 296 | { |
| 297 | if (strncasecmp (*strp + 1, "hi(", 3) == 0) |
| 298 | { |
| 299 | *strp += 4; |
| 300 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_HI16, |
| 301 | &result_type, &value); |
| 302 | if (**strp != ')') |
| 303 | return "missing `)'"; |
| 304 | ++*strp; |
| 305 | if (errmsg == NULL |
| 306 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 307 | value >>= 16; |
| 308 | *valuep = value; |
| 309 | return errmsg; |
| 310 | } |
| 311 | else if (strncasecmp (*strp + 1, "gprelhi(", 8) == 0) |
| 312 | { |
| 313 | *strp += 9; |
| 314 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELHI, |
| 315 | &result_type, &value); |
| 316 | if (**strp != ')') |
| 317 | return "missing ')'"; |
| 318 | ++*strp; |
| 319 | if (errmsg == NULL |
| 320 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 321 | value >>= 16; |
| 322 | *valuep = value; |
| 323 | return errmsg; |
| 324 | } |
| 325 | else if (strncasecmp (*strp + 1, "gothi(", 6) == 0) |
| 326 | { |
| 327 | *strp += 7; |
| 328 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GOTHI, |
| 329 | &result_type, &value); |
| 330 | if (**strp != ')') |
| 331 | return "missing ')'"; |
| 332 | ++*strp; |
| 333 | if (errmsg == NULL |
| 334 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 335 | value >>= 16; |
| 336 | *valuep = value; |
| 337 | return errmsg; |
| 338 | } |
| 339 | else if (strncasecmp (*strp + 1, "gotfuncdeschi(", 14) == 0) |
| 340 | { |
| 341 | *strp += 15; |
| 342 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 343 | BFD_RELOC_FRV_FUNCDESC_GOTHI, |
| 344 | &result_type, &value); |
| 345 | if (**strp != ')') |
| 346 | return "missing ')'"; |
| 347 | ++*strp; |
| 348 | if (errmsg == NULL |
| 349 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 350 | value >>= 16; |
| 351 | *valuep = value; |
| 352 | return errmsg; |
| 353 | } |
| 354 | else if (strncasecmp (*strp + 1, "gotoffhi(", 9) == 0) |
| 355 | { |
| 356 | *strp += 10; |
| 357 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 358 | BFD_RELOC_FRV_GOTOFFHI, |
| 359 | &result_type, &value); |
| 360 | if (**strp != ')') |
| 361 | return "missing ')'"; |
| 362 | ++*strp; |
| 363 | if (errmsg == NULL |
| 364 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 365 | value >>= 16; |
| 366 | *valuep = value; |
| 367 | return errmsg; |
| 368 | } |
| 369 | else if (strncasecmp (*strp + 1, "gotofffuncdeschi(", 17) == 0) |
| 370 | { |
| 371 | *strp += 18; |
| 372 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 373 | BFD_RELOC_FRV_FUNCDESC_GOTOFFHI, |
| 374 | &result_type, &value); |
| 375 | if (**strp != ')') |
| 376 | return "missing ')'"; |
| 377 | ++*strp; |
| 378 | if (errmsg == NULL |
| 379 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) |
| 380 | value >>= 16; |
| 381 | *valuep = value; |
| 382 | return errmsg; |
| 383 | } |
| 384 | } |
| 385 | return cgen_parse_unsigned_integer (cd, strp, opindex, valuep); |
| 386 | } |
| 387 | |
| 388 | static long |
| 389 | parse_register_number (strp) |
| 390 | const char **strp; |
| 391 | { |
| 392 | int regno; |
| 393 | if (**strp < '0' || **strp > '9') |
| 394 | return -1; /* error */ |
| 395 | |
| 396 | regno = **strp - '0'; |
| 397 | for (++*strp; **strp >= '0' && **strp <= '9'; ++*strp) |
| 398 | regno = regno * 10 + (**strp - '0'); |
| 399 | |
| 400 | return regno; |
| 401 | } |
| 402 | |
| 403 | static const char * |
| 404 | parse_spr (cd, strp, table, valuep) |
| 405 | CGEN_CPU_DESC cd; |
| 406 | const char **strp; |
| 407 | CGEN_KEYWORD * table; |
| 408 | long *valuep; |
| 409 | { |
| 410 | const char *save_strp; |
| 411 | long regno; |
| 412 | |
| 413 | /* Check for spr index notation. */ |
| 414 | if (strncasecmp (*strp, "spr[", 4) == 0) |
| 415 | { |
| 416 | *strp += 4; |
| 417 | regno = parse_register_number (strp); |
| 418 | if (**strp != ']') |
| 419 | return "missing `]'"; |
| 420 | ++*strp; |
| 421 | if (! spr_valid (regno)) |
| 422 | return "Special purpose register number is out of range"; |
| 423 | *valuep = regno; |
| 424 | return NULL; |
| 425 | } |
| 426 | |
| 427 | save_strp = *strp; |
| 428 | regno = parse_register_number (strp); |
| 429 | if (regno != -1) |
| 430 | { |
| 431 | if (! spr_valid (regno)) |
| 432 | return "Special purpose register number is out of range"; |
| 433 | *valuep = regno; |
| 434 | return NULL; |
| 435 | } |
| 436 | |
| 437 | *strp = save_strp; |
| 438 | return cgen_parse_keyword (cd, strp, table, valuep); |
| 439 | } |
| 440 | |
| 441 | static const char * |
| 442 | parse_d12 (cd, strp, opindex, valuep) |
| 443 | CGEN_CPU_DESC cd; |
| 444 | const char **strp; |
| 445 | int opindex; |
| 446 | long *valuep; |
| 447 | { |
| 448 | const char *errmsg; |
| 449 | enum cgen_parse_operand_result result_type; |
| 450 | bfd_vma value; |
| 451 | |
| 452 | /* Check for small data reference. */ |
| 453 | if (**strp == '#' || **strp == '%') |
| 454 | { |
| 455 | if (strncasecmp (*strp + 1, "gprel12(", 8) == 0) |
| 456 | { |
| 457 | *strp += 9; |
| 458 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPREL12, |
| 459 | &result_type, &value); |
| 460 | if (**strp != ')') |
| 461 | return "missing `)'"; |
| 462 | ++*strp; |
| 463 | *valuep = value; |
| 464 | return errmsg; |
| 465 | } |
| 466 | else if (strncasecmp (*strp + 1, "got12(", 6) == 0) |
| 467 | { |
| 468 | *strp += 7; |
| 469 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GOT12, |
| 470 | &result_type, &value); |
| 471 | if (**strp != ')') |
| 472 | return "missing ')'"; |
| 473 | ++*strp; |
| 474 | *valuep = value; |
| 475 | return errmsg; |
| 476 | } |
| 477 | else if (strncasecmp (*strp + 1, "gotfuncdesc12(", 14) == 0) |
| 478 | { |
| 479 | *strp += 15; |
| 480 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 481 | BFD_RELOC_FRV_FUNCDESC_GOT12, |
| 482 | &result_type, &value); |
| 483 | if (**strp != ')') |
| 484 | return "missing ')'"; |
| 485 | ++*strp; |
| 486 | *valuep = value; |
| 487 | return errmsg; |
| 488 | } |
| 489 | else if (strncasecmp (*strp + 1, "gotoff12(", 9) == 0) |
| 490 | { |
| 491 | *strp += 10; |
| 492 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 493 | BFD_RELOC_FRV_GOTOFF12, |
| 494 | &result_type, &value); |
| 495 | if (**strp != ')') |
| 496 | return "missing ')'"; |
| 497 | ++*strp; |
| 498 | *valuep = value; |
| 499 | return errmsg; |
| 500 | } |
| 501 | else if (strncasecmp (*strp + 1, "gotofffuncdesc12(", 17) == 0) |
| 502 | { |
| 503 | *strp += 18; |
| 504 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 505 | BFD_RELOC_FRV_FUNCDESC_GOTOFF12, |
| 506 | &result_type, &value); |
| 507 | if (**strp != ')') |
| 508 | return "missing ')'"; |
| 509 | ++*strp; |
| 510 | *valuep = value; |
| 511 | return errmsg; |
| 512 | } |
| 513 | } |
| 514 | return cgen_parse_signed_integer (cd, strp, opindex, valuep); |
| 515 | } |
| 516 | |
| 517 | static const char * |
| 518 | parse_s12 (cd, strp, opindex, valuep) |
| 519 | CGEN_CPU_DESC cd; |
| 520 | const char **strp; |
| 521 | int opindex; |
| 522 | long *valuep; |
| 523 | { |
| 524 | const char *errmsg; |
| 525 | enum cgen_parse_operand_result result_type; |
| 526 | bfd_vma value; |
| 527 | |
| 528 | /* Check for small data reference. */ |
| 529 | if ((**strp == '#' || **strp == '%') |
| 530 | && strncasecmp (*strp + 1, "gprel12(", 8) == 0) |
| 531 | { |
| 532 | *strp += 9; |
| 533 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPREL12, |
| 534 | &result_type, &value); |
| 535 | if (**strp != ')') |
| 536 | return "missing `)'"; |
| 537 | ++*strp; |
| 538 | *valuep = value; |
| 539 | return errmsg; |
| 540 | } |
| 541 | else if ((**strp == '#' || **strp == '%') |
| 542 | && strncasecmp (*strp + 1, "got12(", 6) == 0) |
| 543 | { |
| 544 | *strp += 7; |
| 545 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GOT12, |
| 546 | &result_type, &value); |
| 547 | if (**strp != ')') |
| 548 | return "missing ')'"; |
| 549 | ++*strp; |
| 550 | *valuep = value; |
| 551 | return errmsg; |
| 552 | } |
| 553 | else if ((**strp == '#' || **strp == '%') |
| 554 | && strncasecmp (*strp + 1, "gotfuncdesc12(", 14) == 0) |
| 555 | { |
| 556 | *strp += 15; |
| 557 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 558 | BFD_RELOC_FRV_FUNCDESC_GOT12, |
| 559 | &result_type, &value); |
| 560 | if (**strp != ')') |
| 561 | return "missing ')'"; |
| 562 | ++*strp; |
| 563 | *valuep = value; |
| 564 | return errmsg; |
| 565 | } |
| 566 | else if ((**strp == '#' || **strp == '%') |
| 567 | && strncasecmp (*strp + 1, "gotoff12(", 9) == 0) |
| 568 | { |
| 569 | *strp += 10; |
| 570 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GOTOFF12, |
| 571 | &result_type, &value); |
| 572 | if (**strp != ')') |
| 573 | return "missing ')'"; |
| 574 | ++*strp; |
| 575 | *valuep = value; |
| 576 | return errmsg; |
| 577 | } |
| 578 | else if ((**strp == '#' || **strp == '%') |
| 579 | && strncasecmp (*strp + 1, "gotofffuncdesc12(", 17) == 0) |
| 580 | { |
| 581 | *strp += 18; |
| 582 | errmsg = cgen_parse_address (cd, strp, opindex, |
| 583 | BFD_RELOC_FRV_FUNCDESC_GOTOFF12, |
| 584 | &result_type, &value); |
| 585 | if (**strp != ')') |
| 586 | return "missing ')'"; |
| 587 | ++*strp; |
| 588 | *valuep = value; |
| 589 | return errmsg; |
| 590 | } |
| 591 | else |
| 592 | { |
| 593 | if (**strp == '#') |
| 594 | ++*strp; |
| 595 | return cgen_parse_signed_integer (cd, strp, opindex, valuep); |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | static const char * |
| 600 | parse_u12 (cd, strp, opindex, valuep) |
| 601 | CGEN_CPU_DESC cd; |
| 602 | const char **strp; |
| 603 | int opindex; |
| 604 | long *valuep; |
| 605 | { |
| 606 | const char *errmsg; |
| 607 | enum cgen_parse_operand_result result_type; |
| 608 | bfd_vma value; |
| 609 | |
| 610 | /* Check for small data reference. */ |
| 611 | if ((**strp == '#' || **strp == '%') |
| 612 | && strncasecmp (*strp + 1, "gprel12(", 8) == 0) |
| 613 | { |
| 614 | *strp += 9; |
| 615 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELU12, |
| 616 | &result_type, &value); |
| 617 | if (**strp != ')') |
| 618 | return "missing `)'"; |
| 619 | ++*strp; |
| 620 | *valuep = value; |
| 621 | return errmsg; |
| 622 | } |
| 623 | else |
| 624 | { |
| 625 | if (**strp == '#') |
| 626 | ++*strp; |
| 627 | return cgen_parse_signed_integer (cd, strp, opindex, valuep); |
| 628 | } |
| 629 | } |
| 630 | |
| 631 | static const char * |
| 632 | parse_A (cd, strp, opindex, valuep, A) |
| 633 | CGEN_CPU_DESC cd; |
| 634 | const char **strp; |
| 635 | int opindex; |
| 636 | long *valuep; |
| 637 | long A; |
| 638 | { |
| 639 | const char *errmsg; |
| 640 | |
| 641 | if (**strp == '#') |
| 642 | ++*strp; |
| 643 | |
| 644 | errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep); |
| 645 | if (errmsg) |
| 646 | return errmsg; |
| 647 | |
| 648 | if (*valuep != A) |
| 649 | return "Value of A operand must be 0 or 1"; |
| 650 | |
| 651 | return NULL; |
| 652 | } |
| 653 | |
| 654 | static const char * |
| 655 | parse_A0 (cd, strp, opindex, valuep) |
| 656 | CGEN_CPU_DESC cd; |
| 657 | const char **strp; |
| 658 | int opindex; |
| 659 | long *valuep; |
| 660 | { |
| 661 | return parse_A (cd, strp, opindex, valuep, 0); |
| 662 | } |
| 663 | |
| 664 | static const char * |
| 665 | parse_A1 (cd, strp, opindex, valuep) |
| 666 | CGEN_CPU_DESC cd; |
| 667 | const char **strp; |
| 668 | int opindex; |
| 669 | long *valuep; |
| 670 | { |
| 671 | return parse_A (cd, strp, opindex, valuep, 1); |
| 672 | } |
| 673 | |
| 674 | static const char * |
| 675 | parse_even_register (cd, strP, tableP, valueP) |
| 676 | CGEN_CPU_DESC cd; |
| 677 | const char ** strP; |
| 678 | CGEN_KEYWORD * tableP; |
| 679 | long * valueP; |
| 680 | { |
| 681 | const char * errmsg; |
| 682 | const char * saved_star_strP = * strP; |
| 683 | |
| 684 | errmsg = cgen_parse_keyword (cd, strP, tableP, valueP); |
| 685 | |
| 686 | if (errmsg == NULL && ((* valueP) & 1)) |
| 687 | { |
| 688 | errmsg = _("register number must be even"); |
| 689 | * strP = saved_star_strP; |
| 690 | } |
| 691 | |
| 692 | return errmsg; |
| 693 | } |
| 694 | /* -- */ |
| 695 | |
| 696 | const char * frv_cgen_parse_operand |
| 697 | PARAMS ((CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *)); |
| 698 | |
| 699 | /* Main entry point for operand parsing. |
| 700 | |
| 701 | This function is basically just a big switch statement. Earlier versions |
| 702 | used tables to look up the function to use, but |
| 703 | - if the table contains both assembler and disassembler functions then |
| 704 | the disassembler contains much of the assembler and vice-versa, |
| 705 | - there's a lot of inlining possibilities as things grow, |
| 706 | - using a switch statement avoids the function call overhead. |
| 707 | |
| 708 | This function could be moved into `parse_insn_normal', but keeping it |
| 709 | separate makes clear the interface between `parse_insn_normal' and each of |
| 710 | the handlers. */ |
| 711 | |
| 712 | const char * |
| 713 | frv_cgen_parse_operand (cd, opindex, strp, fields) |
| 714 | CGEN_CPU_DESC cd; |
| 715 | int opindex; |
| 716 | const char ** strp; |
| 717 | CGEN_FIELDS * fields; |
| 718 | { |
| 719 | const char * errmsg = NULL; |
| 720 | /* Used by scalar operands that still need to be parsed. */ |
| 721 | long junk ATTRIBUTE_UNUSED; |
| 722 | |
| 723 | switch (opindex) |
| 724 | { |
| 725 | case FRV_OPERAND_A0 : |
| 726 | errmsg = parse_A0 (cd, strp, FRV_OPERAND_A0, &fields->f_A); |
| 727 | break; |
| 728 | case FRV_OPERAND_A1 : |
| 729 | errmsg = parse_A1 (cd, strp, FRV_OPERAND_A1, &fields->f_A); |
| 730 | break; |
| 731 | case FRV_OPERAND_ACC40SI : |
| 732 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_acc_names, & fields->f_ACC40Si); |
| 733 | break; |
| 734 | case FRV_OPERAND_ACC40SK : |
| 735 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_acc_names, & fields->f_ACC40Sk); |
| 736 | break; |
| 737 | case FRV_OPERAND_ACC40UI : |
| 738 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_acc_names, & fields->f_ACC40Ui); |
| 739 | break; |
| 740 | case FRV_OPERAND_ACC40UK : |
| 741 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_acc_names, & fields->f_ACC40Uk); |
| 742 | break; |
| 743 | case FRV_OPERAND_ACCGI : |
| 744 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_accg_names, & fields->f_ACCGi); |
| 745 | break; |
| 746 | case FRV_OPERAND_ACCGK : |
| 747 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_accg_names, & fields->f_ACCGk); |
| 748 | break; |
| 749 | case FRV_OPERAND_CCI : |
| 750 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CCi); |
| 751 | break; |
| 752 | case FRV_OPERAND_CPRDOUBLEK : |
| 753 | errmsg = parse_even_register (cd, strp, & frv_cgen_opval_cpr_names, & fields->f_CPRk); |
| 754 | break; |
| 755 | case FRV_OPERAND_CPRI : |
| 756 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cpr_names, & fields->f_CPRi); |
| 757 | break; |
| 758 | case FRV_OPERAND_CPRJ : |
| 759 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cpr_names, & fields->f_CPRj); |
| 760 | break; |
| 761 | case FRV_OPERAND_CPRK : |
| 762 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cpr_names, & fields->f_CPRk); |
| 763 | break; |
| 764 | case FRV_OPERAND_CRI : |
| 765 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRi); |
| 766 | break; |
| 767 | case FRV_OPERAND_CRJ : |
| 768 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRj); |
| 769 | break; |
| 770 | case FRV_OPERAND_CRJ_FLOAT : |
| 771 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRj_float); |
| 772 | break; |
| 773 | case FRV_OPERAND_CRJ_INT : |
| 774 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRj_int); |
| 775 | break; |
| 776 | case FRV_OPERAND_CRK : |
| 777 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRk); |
| 778 | break; |
| 779 | case FRV_OPERAND_FCCI_1 : |
| 780 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fccr_names, & fields->f_FCCi_1); |
| 781 | break; |
| 782 | case FRV_OPERAND_FCCI_2 : |
| 783 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fccr_names, & fields->f_FCCi_2); |
| 784 | break; |
| 785 | case FRV_OPERAND_FCCI_3 : |
| 786 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fccr_names, & fields->f_FCCi_3); |
| 787 | break; |
| 788 | case FRV_OPERAND_FCCK : |
| 789 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fccr_names, & fields->f_FCCk); |
| 790 | break; |
| 791 | case FRV_OPERAND_FRDOUBLEI : |
| 792 | errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRi); |
| 793 | break; |
| 794 | case FRV_OPERAND_FRDOUBLEJ : |
| 795 | errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRj); |
| 796 | break; |
| 797 | case FRV_OPERAND_FRDOUBLEK : |
| 798 | errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk); |
| 799 | break; |
| 800 | case FRV_OPERAND_FRI : |
| 801 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRi); |
| 802 | break; |
| 803 | case FRV_OPERAND_FRINTI : |
| 804 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRi); |
| 805 | break; |
| 806 | case FRV_OPERAND_FRINTIEVEN : |
| 807 | errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRi); |
| 808 | break; |
| 809 | case FRV_OPERAND_FRINTJ : |
| 810 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRj); |
| 811 | break; |
| 812 | case FRV_OPERAND_FRINTJEVEN : |
| 813 | errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRj); |
| 814 | break; |
| 815 | case FRV_OPERAND_FRINTK : |
| 816 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk); |
| 817 | break; |
| 818 | case FRV_OPERAND_FRINTKEVEN : |
| 819 | errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk); |
| 820 | break; |
| 821 | case FRV_OPERAND_FRJ : |
| 822 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRj); |
| 823 | break; |
| 824 | case FRV_OPERAND_FRK : |
| 825 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk); |
| 826 | break; |
| 827 | case FRV_OPERAND_FRKHI : |
| 828 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk); |
| 829 | break; |
| 830 | case FRV_OPERAND_FRKLO : |
| 831 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk); |
| 832 | break; |
| 833 | case FRV_OPERAND_GRDOUBLEK : |
| 834 | errmsg = parse_even_register (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRk); |
| 835 | break; |
| 836 | case FRV_OPERAND_GRI : |
| 837 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRi); |
| 838 | break; |
| 839 | case FRV_OPERAND_GRJ : |
| 840 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRj); |
| 841 | break; |
| 842 | case FRV_OPERAND_GRK : |
| 843 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRk); |
| 844 | break; |
| 845 | case FRV_OPERAND_GRKHI : |
| 846 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRk); |
| 847 | break; |
| 848 | case FRV_OPERAND_GRKLO : |
| 849 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRk); |
| 850 | break; |
| 851 | case FRV_OPERAND_ICCI_1 : |
| 852 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_iccr_names, & fields->f_ICCi_1); |
| 853 | break; |
| 854 | case FRV_OPERAND_ICCI_2 : |
| 855 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_iccr_names, & fields->f_ICCi_2); |
| 856 | break; |
| 857 | case FRV_OPERAND_ICCI_3 : |
| 858 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_iccr_names, & fields->f_ICCi_3); |
| 859 | break; |
| 860 | case FRV_OPERAND_LI : |
| 861 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_LI, &fields->f_LI); |
| 862 | break; |
| 863 | case FRV_OPERAND_AE : |
| 864 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_AE, &fields->f_ae); |
| 865 | break; |
| 866 | case FRV_OPERAND_CCOND : |
| 867 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_CCOND, &fields->f_ccond); |
| 868 | break; |
| 869 | case FRV_OPERAND_COND : |
| 870 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_COND, &fields->f_cond); |
| 871 | break; |
| 872 | case FRV_OPERAND_D12 : |
| 873 | errmsg = parse_d12 (cd, strp, FRV_OPERAND_D12, &fields->f_d12); |
| 874 | break; |
| 875 | case FRV_OPERAND_DEBUG : |
| 876 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_DEBUG, &fields->f_debug); |
| 877 | break; |
| 878 | case FRV_OPERAND_EIR : |
| 879 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_EIR, &fields->f_eir); |
| 880 | break; |
| 881 | case FRV_OPERAND_HINT : |
| 882 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_HINT, &fields->f_hint); |
| 883 | break; |
| 884 | case FRV_OPERAND_HINT_NOT_TAKEN : |
| 885 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_h_hint_not_taken, & fields->f_hint); |
| 886 | break; |
| 887 | case FRV_OPERAND_HINT_TAKEN : |
| 888 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_h_hint_taken, & fields->f_hint); |
| 889 | break; |
| 890 | case FRV_OPERAND_LABEL16 : |
| 891 | { |
| 892 | bfd_vma value; |
| 893 | errmsg = cgen_parse_address (cd, strp, FRV_OPERAND_LABEL16, 0, NULL, & value); |
| 894 | fields->f_label16 = value; |
| 895 | } |
| 896 | break; |
| 897 | case FRV_OPERAND_LABEL24 : |
| 898 | { |
| 899 | bfd_vma value; |
| 900 | errmsg = cgen_parse_address (cd, strp, FRV_OPERAND_LABEL24, 0, NULL, & value); |
| 901 | fields->f_label24 = value; |
| 902 | } |
| 903 | break; |
| 904 | case FRV_OPERAND_LOCK : |
| 905 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_LOCK, &fields->f_lock); |
| 906 | break; |
| 907 | case FRV_OPERAND_PACK : |
| 908 | errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_h_pack, & fields->f_pack); |
| 909 | break; |
| 910 | case FRV_OPERAND_S10 : |
| 911 | errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S10, &fields->f_s10); |
| 912 | break; |
| 913 | case FRV_OPERAND_S12 : |
| 914 | errmsg = parse_s12 (cd, strp, FRV_OPERAND_S12, &fields->f_d12); |
| 915 | break; |
| 916 | case FRV_OPERAND_S16 : |
| 917 | errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S16, &fields->f_s16); |
| 918 | break; |
| 919 | case FRV_OPERAND_S5 : |
| 920 | errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S5, &fields->f_s5); |
| 921 | break; |
| 922 | case FRV_OPERAND_S6 : |
| 923 | errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S6, &fields->f_s6); |
| 924 | break; |
| 925 | case FRV_OPERAND_S6_1 : |
| 926 | errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S6_1, &fields->f_s6_1); |
| 927 | break; |
| 928 | case FRV_OPERAND_SLO16 : |
| 929 | errmsg = parse_uslo16 (cd, strp, FRV_OPERAND_SLO16, &fields->f_s16); |
| 930 | break; |
| 931 | case FRV_OPERAND_SPR : |
| 932 | errmsg = parse_spr (cd, strp, & frv_cgen_opval_spr_names, & fields->f_spr); |
| 933 | break; |
| 934 | case FRV_OPERAND_U12 : |
| 935 | errmsg = parse_u12 (cd, strp, FRV_OPERAND_U12, &fields->f_u12); |
| 936 | break; |
| 937 | case FRV_OPERAND_U16 : |
| 938 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_U16, &fields->f_u16); |
| 939 | break; |
| 940 | case FRV_OPERAND_U6 : |
| 941 | errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_U6, &fields->f_u6); |
| 942 | break; |
| 943 | case FRV_OPERAND_UHI16 : |
| 944 | errmsg = parse_uhi16 (cd, strp, FRV_OPERAND_UHI16, &fields->f_u16); |
| 945 | break; |
| 946 | case FRV_OPERAND_ULO16 : |
| 947 | errmsg = parse_ulo16 (cd, strp, FRV_OPERAND_ULO16, &fields->f_u16); |
| 948 | break; |
| 949 | |
| 950 | default : |
| 951 | /* xgettext:c-format */ |
| 952 | fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex); |
| 953 | abort (); |
| 954 | } |
| 955 | |
| 956 | return errmsg; |
| 957 | } |
| 958 | |
| 959 | cgen_parse_fn * const frv_cgen_parse_handlers[] = |
| 960 | { |
| 961 | parse_insn_normal, |
| 962 | }; |
| 963 | |
| 964 | void |
| 965 | frv_cgen_init_asm (cd) |
| 966 | CGEN_CPU_DESC cd; |
| 967 | { |
| 968 | frv_cgen_init_opcode_table (cd); |
| 969 | frv_cgen_init_ibld_table (cd); |
| 970 | cd->parse_handlers = & frv_cgen_parse_handlers[0]; |
| 971 | cd->parse_operand = frv_cgen_parse_operand; |
| 972 | } |
| 973 | |
| 974 | \f |
| 975 | |
| 976 | /* Regex construction routine. |
| 977 | |
| 978 | This translates an opcode syntax string into a regex string, |
| 979 | by replacing any non-character syntax element (such as an |
| 980 | opcode) with the pattern '.*' |
| 981 | |
| 982 | It then compiles the regex and stores it in the opcode, for |
| 983 | later use by frv_cgen_assemble_insn |
| 984 | |
| 985 | Returns NULL for success, an error message for failure. */ |
| 986 | |
| 987 | char * |
| 988 | frv_cgen_build_insn_regex (CGEN_INSN *insn) |
| 989 | { |
| 990 | CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); |
| 991 | const char *mnem = CGEN_INSN_MNEMONIC (insn); |
| 992 | char rxbuf[CGEN_MAX_RX_ELEMENTS]; |
| 993 | char *rx = rxbuf; |
| 994 | const CGEN_SYNTAX_CHAR_TYPE *syn; |
| 995 | int reg_err; |
| 996 | |
| 997 | syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); |
| 998 | |
| 999 | /* Mnemonics come first in the syntax string. */ |
| 1000 | if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) |
| 1001 | return _("missing mnemonic in syntax string"); |
| 1002 | ++syn; |
| 1003 | |
| 1004 | /* Generate a case sensitive regular expression that emulates case |
| 1005 | insensitive matching in the "C" locale. We cannot generate a case |
| 1006 | insensitive regular expression because in Turkish locales, 'i' and 'I' |
| 1007 | are not equal modulo case conversion. */ |
| 1008 | |
| 1009 | /* Copy the literal mnemonic out of the insn. */ |
| 1010 | for (; *mnem; mnem++) |
| 1011 | { |
| 1012 | char c = *mnem; |
| 1013 | |
| 1014 | if (ISALPHA (c)) |
| 1015 | { |
| 1016 | *rx++ = '['; |
| 1017 | *rx++ = TOLOWER (c); |
| 1018 | *rx++ = TOUPPER (c); |
| 1019 | *rx++ = ']'; |
| 1020 | } |
| 1021 | else |
| 1022 | *rx++ = c; |
| 1023 | } |
| 1024 | |
| 1025 | /* Copy any remaining literals from the syntax string into the rx. */ |
| 1026 | for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) |
| 1027 | { |
| 1028 | if (CGEN_SYNTAX_CHAR_P (* syn)) |
| 1029 | { |
| 1030 | char c = CGEN_SYNTAX_CHAR (* syn); |
| 1031 | |
| 1032 | switch (c) |
| 1033 | { |
| 1034 | /* Escape any regex metacharacters in the syntax. */ |
| 1035 | case '.': case '[': case '\\': |
| 1036 | case '*': case '^': case '$': |
| 1037 | |
| 1038 | #ifdef CGEN_ESCAPE_EXTENDED_REGEX |
| 1039 | case '?': case '{': case '}': |
| 1040 | case '(': case ')': case '*': |
| 1041 | case '|': case '+': case ']': |
| 1042 | #endif |
| 1043 | *rx++ = '\\'; |
| 1044 | *rx++ = c; |
| 1045 | break; |
| 1046 | |
| 1047 | default: |
| 1048 | if (ISALPHA (c)) |
| 1049 | { |
| 1050 | *rx++ = '['; |
| 1051 | *rx++ = TOLOWER (c); |
| 1052 | *rx++ = TOUPPER (c); |
| 1053 | *rx++ = ']'; |
| 1054 | } |
| 1055 | else |
| 1056 | *rx++ = c; |
| 1057 | break; |
| 1058 | } |
| 1059 | } |
| 1060 | else |
| 1061 | { |
| 1062 | /* Replace non-syntax fields with globs. */ |
| 1063 | *rx++ = '.'; |
| 1064 | *rx++ = '*'; |
| 1065 | } |
| 1066 | } |
| 1067 | |
| 1068 | /* Trailing whitespace ok. */ |
| 1069 | * rx++ = '['; |
| 1070 | * rx++ = ' '; |
| 1071 | * rx++ = '\t'; |
| 1072 | * rx++ = ']'; |
| 1073 | * rx++ = '*'; |
| 1074 | |
| 1075 | /* But anchor it after that. */ |
| 1076 | * rx++ = '$'; |
| 1077 | * rx = '\0'; |
| 1078 | |
| 1079 | CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); |
| 1080 | reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); |
| 1081 | |
| 1082 | if (reg_err == 0) |
| 1083 | return NULL; |
| 1084 | else |
| 1085 | { |
| 1086 | static char msg[80]; |
| 1087 | |
| 1088 | regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); |
| 1089 | regfree ((regex_t *) CGEN_INSN_RX (insn)); |
| 1090 | free (CGEN_INSN_RX (insn)); |
| 1091 | (CGEN_INSN_RX (insn)) = NULL; |
| 1092 | return msg; |
| 1093 | } |
| 1094 | } |
| 1095 | |
| 1096 | \f |
| 1097 | /* Default insn parser. |
| 1098 | |
| 1099 | The syntax string is scanned and operands are parsed and stored in FIELDS. |
| 1100 | Relocs are queued as we go via other callbacks. |
| 1101 | |
| 1102 | ??? Note that this is currently an all-or-nothing parser. If we fail to |
| 1103 | parse the instruction, we return 0 and the caller will start over from |
| 1104 | the beginning. Backtracking will be necessary in parsing subexpressions, |
| 1105 | but that can be handled there. Not handling backtracking here may get |
| 1106 | expensive in the case of the m68k. Deal with later. |
| 1107 | |
| 1108 | Returns NULL for success, an error message for failure. */ |
| 1109 | |
| 1110 | static const char * |
| 1111 | parse_insn_normal (CGEN_CPU_DESC cd, |
| 1112 | const CGEN_INSN *insn, |
| 1113 | const char **strp, |
| 1114 | CGEN_FIELDS *fields) |
| 1115 | { |
| 1116 | /* ??? Runtime added insns not handled yet. */ |
| 1117 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); |
| 1118 | const char *str = *strp; |
| 1119 | const char *errmsg; |
| 1120 | const char *p; |
| 1121 | const CGEN_SYNTAX_CHAR_TYPE * syn; |
| 1122 | #ifdef CGEN_MNEMONIC_OPERANDS |
| 1123 | /* FIXME: wip */ |
| 1124 | int past_opcode_p; |
| 1125 | #endif |
| 1126 | |
| 1127 | /* For now we assume the mnemonic is first (there are no leading operands). |
| 1128 | We can parse it without needing to set up operand parsing. |
| 1129 | GAS's input scrubber will ensure mnemonics are lowercase, but we may |
| 1130 | not be called from GAS. */ |
| 1131 | p = CGEN_INSN_MNEMONIC (insn); |
| 1132 | while (*p && TOLOWER (*p) == TOLOWER (*str)) |
| 1133 | ++p, ++str; |
| 1134 | |
| 1135 | if (* p) |
| 1136 | return _("unrecognized instruction"); |
| 1137 | |
| 1138 | #ifndef CGEN_MNEMONIC_OPERANDS |
| 1139 | if (* str && ! ISSPACE (* str)) |
| 1140 | return _("unrecognized instruction"); |
| 1141 | #endif |
| 1142 | |
| 1143 | CGEN_INIT_PARSE (cd); |
| 1144 | cgen_init_parse_operand (cd); |
| 1145 | #ifdef CGEN_MNEMONIC_OPERANDS |
| 1146 | past_opcode_p = 0; |
| 1147 | #endif |
| 1148 | |
| 1149 | /* We don't check for (*str != '\0') here because we want to parse |
| 1150 | any trailing fake arguments in the syntax string. */ |
| 1151 | syn = CGEN_SYNTAX_STRING (syntax); |
| 1152 | |
| 1153 | /* Mnemonics come first for now, ensure valid string. */ |
| 1154 | if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) |
| 1155 | abort (); |
| 1156 | |
| 1157 | ++syn; |
| 1158 | |
| 1159 | while (* syn != 0) |
| 1160 | { |
| 1161 | /* Non operand chars must match exactly. */ |
| 1162 | if (CGEN_SYNTAX_CHAR_P (* syn)) |
| 1163 | { |
| 1164 | /* FIXME: While we allow for non-GAS callers above, we assume the |
| 1165 | first char after the mnemonic part is a space. */ |
| 1166 | /* FIXME: We also take inappropriate advantage of the fact that |
| 1167 | GAS's input scrubber will remove extraneous blanks. */ |
| 1168 | if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn))) |
| 1169 | { |
| 1170 | #ifdef CGEN_MNEMONIC_OPERANDS |
| 1171 | if (CGEN_SYNTAX_CHAR(* syn) == ' ') |
| 1172 | past_opcode_p = 1; |
| 1173 | #endif |
| 1174 | ++ syn; |
| 1175 | ++ str; |
| 1176 | } |
| 1177 | else if (*str) |
| 1178 | { |
| 1179 | /* Syntax char didn't match. Can't be this insn. */ |
| 1180 | static char msg [80]; |
| 1181 | |
| 1182 | /* xgettext:c-format */ |
| 1183 | sprintf (msg, _("syntax error (expected char `%c', found `%c')"), |
| 1184 | CGEN_SYNTAX_CHAR(*syn), *str); |
| 1185 | return msg; |
| 1186 | } |
| 1187 | else |
| 1188 | { |
| 1189 | /* Ran out of input. */ |
| 1190 | static char msg [80]; |
| 1191 | |
| 1192 | /* xgettext:c-format */ |
| 1193 | sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), |
| 1194 | CGEN_SYNTAX_CHAR(*syn)); |
| 1195 | return msg; |
| 1196 | } |
| 1197 | continue; |
| 1198 | } |
| 1199 | |
| 1200 | /* We have an operand of some sort. */ |
| 1201 | errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), |
| 1202 | &str, fields); |
| 1203 | if (errmsg) |
| 1204 | return errmsg; |
| 1205 | |
| 1206 | /* Done with this operand, continue with next one. */ |
| 1207 | ++ syn; |
| 1208 | } |
| 1209 | |
| 1210 | /* If we're at the end of the syntax string, we're done. */ |
| 1211 | if (* syn == 0) |
| 1212 | { |
| 1213 | /* FIXME: For the moment we assume a valid `str' can only contain |
| 1214 | blanks now. IE: We needn't try again with a longer version of |
| 1215 | the insn and it is assumed that longer versions of insns appear |
| 1216 | before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ |
| 1217 | while (ISSPACE (* str)) |
| 1218 | ++ str; |
| 1219 | |
| 1220 | if (* str != '\0') |
| 1221 | return _("junk at end of line"); /* FIXME: would like to include `str' */ |
| 1222 | |
| 1223 | return NULL; |
| 1224 | } |
| 1225 | |
| 1226 | /* We couldn't parse it. */ |
| 1227 | return _("unrecognized instruction"); |
| 1228 | } |
| 1229 | \f |
| 1230 | /* Main entry point. |
| 1231 | This routine is called for each instruction to be assembled. |
| 1232 | STR points to the insn to be assembled. |
| 1233 | We assume all necessary tables have been initialized. |
| 1234 | The assembled instruction, less any fixups, is stored in BUF. |
| 1235 | Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value |
| 1236 | still needs to be converted to target byte order, otherwise BUF is an array |
| 1237 | of bytes in target byte order. |
| 1238 | The result is a pointer to the insn's entry in the opcode table, |
| 1239 | or NULL if an error occured (an error message will have already been |
| 1240 | printed). |
| 1241 | |
| 1242 | Note that when processing (non-alias) macro-insns, |
| 1243 | this function recurses. |
| 1244 | |
| 1245 | ??? It's possible to make this cpu-independent. |
| 1246 | One would have to deal with a few minor things. |
| 1247 | At this point in time doing so would be more of a curiosity than useful |
| 1248 | [for example this file isn't _that_ big], but keeping the possibility in |
| 1249 | mind helps keep the design clean. */ |
| 1250 | |
| 1251 | const CGEN_INSN * |
| 1252 | frv_cgen_assemble_insn (CGEN_CPU_DESC cd, |
| 1253 | const char *str, |
| 1254 | CGEN_FIELDS *fields, |
| 1255 | CGEN_INSN_BYTES_PTR buf, |
| 1256 | char **errmsg) |
| 1257 | { |
| 1258 | const char *start; |
| 1259 | CGEN_INSN_LIST *ilist; |
| 1260 | const char *parse_errmsg = NULL; |
| 1261 | const char *insert_errmsg = NULL; |
| 1262 | int recognized_mnemonic = 0; |
| 1263 | |
| 1264 | /* Skip leading white space. */ |
| 1265 | while (ISSPACE (* str)) |
| 1266 | ++ str; |
| 1267 | |
| 1268 | /* The instructions are stored in hashed lists. |
| 1269 | Get the first in the list. */ |
| 1270 | ilist = CGEN_ASM_LOOKUP_INSN (cd, str); |
| 1271 | |
| 1272 | /* Keep looking until we find a match. */ |
| 1273 | start = str; |
| 1274 | for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) |
| 1275 | { |
| 1276 | const CGEN_INSN *insn = ilist->insn; |
| 1277 | recognized_mnemonic = 1; |
| 1278 | |
| 1279 | #ifdef CGEN_VALIDATE_INSN_SUPPORTED |
| 1280 | /* Not usually needed as unsupported opcodes |
| 1281 | shouldn't be in the hash lists. */ |
| 1282 | /* Is this insn supported by the selected cpu? */ |
| 1283 | if (! frv_cgen_insn_supported (cd, insn)) |
| 1284 | continue; |
| 1285 | #endif |
| 1286 | /* If the RELAXED attribute is set, this is an insn that shouldn't be |
| 1287 | chosen immediately. Instead, it is used during assembler/linker |
| 1288 | relaxation if possible. */ |
| 1289 | if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) |
| 1290 | continue; |
| 1291 | |
| 1292 | str = start; |
| 1293 | |
| 1294 | /* Skip this insn if str doesn't look right lexically. */ |
| 1295 | if (CGEN_INSN_RX (insn) != NULL && |
| 1296 | regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) |
| 1297 | continue; |
| 1298 | |
| 1299 | /* Allow parse/insert handlers to obtain length of insn. */ |
| 1300 | CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); |
| 1301 | |
| 1302 | parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); |
| 1303 | if (parse_errmsg != NULL) |
| 1304 | continue; |
| 1305 | |
| 1306 | /* ??? 0 is passed for `pc'. */ |
| 1307 | insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, |
| 1308 | (bfd_vma) 0); |
| 1309 | if (insert_errmsg != NULL) |
| 1310 | continue; |
| 1311 | |
| 1312 | /* It is up to the caller to actually output the insn and any |
| 1313 | queued relocs. */ |
| 1314 | return insn; |
| 1315 | } |
| 1316 | |
| 1317 | { |
| 1318 | static char errbuf[150]; |
| 1319 | #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS |
| 1320 | const char *tmp_errmsg; |
| 1321 | |
| 1322 | /* If requesting verbose error messages, use insert_errmsg. |
| 1323 | Failing that, use parse_errmsg. */ |
| 1324 | tmp_errmsg = (insert_errmsg ? insert_errmsg : |
| 1325 | parse_errmsg ? parse_errmsg : |
| 1326 | recognized_mnemonic ? |
| 1327 | _("unrecognized form of instruction") : |
| 1328 | _("unrecognized instruction")); |
| 1329 | |
| 1330 | if (strlen (start) > 50) |
| 1331 | /* xgettext:c-format */ |
| 1332 | sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); |
| 1333 | else |
| 1334 | /* xgettext:c-format */ |
| 1335 | sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); |
| 1336 | #else |
| 1337 | if (strlen (start) > 50) |
| 1338 | /* xgettext:c-format */ |
| 1339 | sprintf (errbuf, _("bad instruction `%.50s...'"), start); |
| 1340 | else |
| 1341 | /* xgettext:c-format */ |
| 1342 | sprintf (errbuf, _("bad instruction `%.50s'"), start); |
| 1343 | #endif |
| 1344 | |
| 1345 | *errmsg = errbuf; |
| 1346 | return NULL; |
| 1347 | } |
| 1348 | } |
| 1349 | \f |
| 1350 | #if 0 /* This calls back to GAS which we can't do without care. */ |
| 1351 | |
| 1352 | /* Record each member of OPVALS in the assembler's symbol table. |
| 1353 | This lets GAS parse registers for us. |
| 1354 | ??? Interesting idea but not currently used. */ |
| 1355 | |
| 1356 | /* Record each member of OPVALS in the assembler's symbol table. |
| 1357 | FIXME: Not currently used. */ |
| 1358 | |
| 1359 | void |
| 1360 | frv_cgen_asm_hash_keywords (CGEN_CPU_DESC cd, CGEN_KEYWORD *opvals) |
| 1361 | { |
| 1362 | CGEN_KEYWORD_SEARCH search = cgen_keyword_search_init (opvals, NULL); |
| 1363 | const CGEN_KEYWORD_ENTRY * ke; |
| 1364 | |
| 1365 | while ((ke = cgen_keyword_search_next (& search)) != NULL) |
| 1366 | { |
| 1367 | #if 0 /* Unnecessary, should be done in the search routine. */ |
| 1368 | if (! frv_cgen_opval_supported (ke)) |
| 1369 | continue; |
| 1370 | #endif |
| 1371 | cgen_asm_record_register (cd, ke->name, ke->value); |
| 1372 | } |
| 1373 | } |
| 1374 | |
| 1375 | #endif /* 0 */ |