1 /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */ 2 /* Assembler interface for targets using CGEN. -*- C -*- 3 CGEN: Cpu tools GENerator 4 5 THIS FILE IS MACHINE GENERATED WITH CGEN. 6 - the resultant file is machine generated, cgen-asm.in isn't 7 8 Copyright (C) 1996-2024 Free Software Foundation, Inc. 9 10 This file is part of libopcodes. 11 12 This library is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; either version 3, or (at your option) 15 any later version. 16 17 It is distributed in the hope that it will be useful, but WITHOUT 18 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 19 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 20 License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program; if not, write to the Free Software Foundation, Inc., 24 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 25 26 27 /* ??? Eventually more and more of this stuff can go to cpu-independent files. 28 Keep that in mind. */ 29 30 #include "sysdep.h" 31 #include <stdio.h> 32 #include "ansidecl.h" 33 #include "bfd.h" 34 #include "symcat.h" 35 #include "mep-desc.h" 36 #include "mep-opc.h" 37 #include "opintl.h" 38 #include "xregex.h" 39 #include "libiberty.h" 40 #include "safe-ctype.h" 41 42 #undef min 43 #define min(a,b) ((a) < (b) ? (a) : (b)) 44 #undef max 45 #define max(a,b) ((a) > (b) ? (a) : (b)) 46 47 static const char * parse_insn_normal 48 (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *); 49 50 /* -- assembler routines inserted here. */ 51 52 /* -- asm.c */ 53 54 #include "elf/mep.h" 55 56 #define CGEN_VALIDATE_INSN_SUPPORTED 57 #define mep_cgen_insn_supported mep_cgen_insn_supported_asm 58 59 const char * parse_csrn (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); 60 const char * parse_tpreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); 61 const char * parse_spreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); 62 const char * parse_mep_align (CGEN_CPU_DESC, const char **, enum cgen_operand_type, long *); 63 const char * parse_mep_alignu (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *); 64 static const char * parse_signed16 (CGEN_CPU_DESC, const char **, int, long *); 65 static const char * parse_signed16_range (CGEN_CPU_DESC, const char **, int, long *) ATTRIBUTE_UNUSED; 66 static const char * parse_unsigned16 (CGEN_CPU_DESC, const char **, int, unsigned long *); 67 static const char * parse_unsigned16_range (CGEN_CPU_DESC, const char **, int, unsigned long *) ATTRIBUTE_UNUSED; 68 static const char * parse_lo16 (CGEN_CPU_DESC, const char **, int, long *, long); 69 static const char * parse_unsigned7 (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *); 70 static const char * parse_zero (CGEN_CPU_DESC, const char **, int, long *); 71 72 const char * 73 parse_csrn (CGEN_CPU_DESC cd, const char **strp, 74 CGEN_KEYWORD *keyword_table, long *field) 75 { 76 const char *err; 77 unsigned long value; 78 79 err = cgen_parse_keyword (cd, strp, keyword_table, field); 80 if (!err) 81 return NULL; 82 83 err = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, & value); 84 if (err) 85 return err; 86 *field = value; 87 return NULL; 88 } 89 90 /* begin-cop-ip-parse-handlers */ 91 static const char * 92 parse_ivc2_cr (CGEN_CPU_DESC, 93 const char **, 94 CGEN_KEYWORD *, 95 long *) ATTRIBUTE_UNUSED; 96 static const char * 97 parse_ivc2_cr (CGEN_CPU_DESC cd, 98 const char **strp, 99 CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED, 100 long *field) 101 { 102 return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr_ivc2, field); 103 } 104 static const char * 105 parse_ivc2_ccr (CGEN_CPU_DESC, 106 const char **, 107 CGEN_KEYWORD *, 108 long *) ATTRIBUTE_UNUSED; 109 static const char * 110 parse_ivc2_ccr (CGEN_CPU_DESC cd, 111 const char **strp, 112 CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED, 113 long *field) 114 { 115 return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, field); 116 } 117 /* end-cop-ip-parse-handlers */ 118 119 const char * 120 parse_tpreg (CGEN_CPU_DESC cd, const char ** strp, 121 CGEN_KEYWORD *keyword_table, long *field) 122 { 123 const char *err; 124 125 err = cgen_parse_keyword (cd, strp, keyword_table, field); 126 if (err) 127 return err; 128 if (*field != 13) 129 return _("Only $tp or $13 allowed for this opcode"); 130 return NULL; 131 } 132 133 const char * 134 parse_spreg (CGEN_CPU_DESC cd, const char ** strp, 135 CGEN_KEYWORD *keyword_table, long *field) 136 { 137 const char *err; 138 139 err = cgen_parse_keyword (cd, strp, keyword_table, field); 140 if (err) 141 return err; 142 if (*field != 15) 143 return _("Only $sp or $15 allowed for this opcode"); 144 return NULL; 145 } 146 147 const char * 148 parse_mep_align (CGEN_CPU_DESC cd, const char ** strp, 149 enum cgen_operand_type type, long *field) 150 { 151 long lsbs = 0; 152 const char *err; 153 154 switch (type) 155 { 156 case MEP_OPERAND_PCREL8A2: 157 case MEP_OPERAND_PCREL12A2: 158 case MEP_OPERAND_PCREL17A2: 159 case MEP_OPERAND_PCREL24A2: 160 err = cgen_parse_signed_integer (cd, strp, type, field); 161 break; 162 case MEP_OPERAND_PCABS24A2: 163 case MEP_OPERAND_UDISP7: 164 case MEP_OPERAND_UDISP7A2: 165 case MEP_OPERAND_UDISP7A4: 166 case MEP_OPERAND_UIMM7A4: 167 case MEP_OPERAND_ADDR24A4: 168 err = cgen_parse_unsigned_integer (cd, strp, type, (unsigned long *) field); 169 break; 170 default: 171 abort(); 172 } 173 if (err) 174 return err; 175 switch (type) 176 { 177 case MEP_OPERAND_UDISP7: 178 lsbs = 0; 179 break; 180 case MEP_OPERAND_PCREL8A2: 181 case MEP_OPERAND_PCREL12A2: 182 case MEP_OPERAND_PCREL17A2: 183 case MEP_OPERAND_PCREL24A2: 184 case MEP_OPERAND_PCABS24A2: 185 case MEP_OPERAND_UDISP7A2: 186 lsbs = *field & 1; 187 break; 188 case MEP_OPERAND_UDISP7A4: 189 case MEP_OPERAND_UIMM7A4: 190 case MEP_OPERAND_ADDR24A4: 191 lsbs = *field & 3; 192 break; 193 lsbs = *field & 7; 194 break; 195 default: 196 /* Safe assumption? */ 197 abort (); 198 } 199 if (lsbs) 200 return "Value is not aligned enough"; 201 return NULL; 202 } 203 204 const char * 205 parse_mep_alignu (CGEN_CPU_DESC cd, const char ** strp, 206 enum cgen_operand_type type, unsigned long *field) 207 { 208 return parse_mep_align (cd, strp, type, (long *) field); 209 } 210 211 212 /* Handle %lo(), %tpoff(), %sdaoff(), %hi(), and other signed 213 constants in a signed context. */ 214 215 static const char * 216 parse_signed16 (CGEN_CPU_DESC cd, 217 const char **strp, 218 int opindex, 219 long *valuep) 220 { 221 return parse_lo16 (cd, strp, opindex, valuep, 1); 222 } 223 224 static const char * 225 parse_lo16 (CGEN_CPU_DESC cd, 226 const char **strp, 227 int opindex, 228 long *valuep, 229 long signedp) 230 { 231 const char *errmsg; 232 enum cgen_parse_operand_result result_type; 233 bfd_vma value; 234 235 if (strncasecmp (*strp, "%lo(", 4) == 0) 236 { 237 *strp += 4; 238 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16, 239 & result_type, & value); 240 if (**strp != ')') 241 return _("missing `)'"); 242 ++*strp; 243 if (errmsg == NULL 244 && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) 245 value &= 0xffff; 246 if (signedp) 247 *valuep = (long)(short) value; 248 else 249 *valuep = value; 250 return errmsg; 251 } 252 253 if (strncasecmp (*strp, "%hi(", 4) == 0) 254 { 255 *strp += 4; 256 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S, 257 & result_type, & value); 258 if (**strp != ')') 259 return _("missing `)'"); 260 ++*strp; 261 if (errmsg == NULL 262 && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) 263 value = (value + 0x8000) >> 16; 264 *valuep = value; 265 return errmsg; 266 } 267 268 if (strncasecmp (*strp, "%uhi(", 5) == 0) 269 { 270 *strp += 5; 271 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U, 272 & result_type, & value); 273 if (**strp != ')') 274 return _("missing `)'"); 275 ++*strp; 276 if (errmsg == NULL 277 && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) 278 value = value >> 16; 279 *valuep = value; 280 return errmsg; 281 } 282 283 if (strncasecmp (*strp, "%sdaoff(", 8) == 0) 284 { 285 *strp += 8; 286 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL, 287 NULL, & value); 288 if (**strp != ')') 289 return _("missing `)'"); 290 ++*strp; 291 *valuep = value; 292 return errmsg; 293 } 294 295 if (strncasecmp (*strp, "%tpoff(", 7) == 0) 296 { 297 *strp += 7; 298 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL, 299 NULL, & value); 300 if (**strp != ')') 301 return _("missing `)'"); 302 ++*strp; 303 *valuep = value; 304 return errmsg; 305 } 306 307 if (**strp == '%') 308 /* xgettext:no-c-format */ 309 return _("invalid %function() here"); 310 311 return cgen_parse_signed_integer (cd, strp, opindex, valuep); 312 } 313 314 static const char * 315 parse_unsigned16 (CGEN_CPU_DESC cd, 316 const char **strp, 317 int opindex, 318 unsigned long *valuep) 319 { 320 return parse_lo16 (cd, strp, opindex, (long *) valuep, 0); 321 } 322 323 static const char * 324 parse_signed16_range (CGEN_CPU_DESC cd, 325 const char **strp, 326 int opindex, 327 signed long *valuep) 328 { 329 const char *errmsg = 0; 330 signed long value; 331 332 errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); 333 if (errmsg) 334 return errmsg; 335 336 if (value < -32768 || value > 32767) 337 return _("Immediate is out of range -32768 to 32767"); 338 339 *valuep = value; 340 return 0; 341 } 342 343 static const char * 344 parse_unsigned16_range (CGEN_CPU_DESC cd, 345 const char **strp, 346 int opindex, 347 unsigned long *valuep) 348 { 349 const char *errmsg = 0; 350 unsigned long value; 351 352 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value); 353 if (errmsg) 354 return errmsg; 355 356 if (value > 65535) 357 return _("Immediate is out of range 0 to 65535"); 358 359 *valuep = value; 360 return 0; 361 } 362 363 /* A special case of parse_signed16 which accepts only the value zero. */ 364 365 static const char * 366 parse_zero (CGEN_CPU_DESC cd, const char **strp, int opindex, long *valuep) 367 { 368 const char *errmsg; 369 enum cgen_parse_operand_result result_type; 370 bfd_vma value; 371 372 /*fprintf(stderr, "dj: signed parse opindex `%s'\n", *strp);*/ 373 374 /* Prevent ($ry) from being attempted as an expression on 'sw $rx,($ry)'. 375 It will fail and cause ry to be listed as an undefined symbol in the 376 listing. */ 377 if (strncmp (*strp, "($", 2) == 0) 378 return "not zero"; /* any string will do -- will never be seen. */ 379 380 if (strncasecmp (*strp, "%lo(", 4) == 0) 381 { 382 *strp += 4; 383 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16, 384 &result_type, &value); 385 if (**strp != ')') 386 return "missing `)'"; 387 ++*strp; 388 if (errmsg == NULL 389 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 390 return "not zero"; /* any string will do -- will never be seen. */ 391 *valuep = value; 392 return errmsg; 393 } 394 395 if (strncasecmp (*strp, "%hi(", 4) == 0) 396 { 397 *strp += 4; 398 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S, 399 &result_type, &value); 400 if (**strp != ')') 401 return "missing `)'"; 402 ++*strp; 403 if (errmsg == NULL 404 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 405 return "not zero"; /* any string will do -- will never be seen. */ 406 *valuep = value; 407 return errmsg; 408 } 409 410 if (strncasecmp (*strp, "%uhi(", 5) == 0) 411 { 412 *strp += 5; 413 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U, 414 &result_type, &value); 415 if (**strp != ')') 416 return "missing `)'"; 417 ++*strp; 418 if (errmsg == NULL 419 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 420 return "not zero"; /* any string will do -- will never be seen. */ 421 *valuep = value; 422 return errmsg; 423 } 424 425 if (strncasecmp (*strp, "%sdaoff(", 8) == 0) 426 { 427 *strp += 8; 428 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL, 429 &result_type, &value); 430 if (**strp != ')') 431 return "missing `)'"; 432 ++*strp; 433 if (errmsg == NULL 434 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 435 return "not zero"; /* any string will do -- will never be seen. */ 436 *valuep = value; 437 return errmsg; 438 } 439 440 if (strncasecmp (*strp, "%tpoff(", 7) == 0) 441 { 442 *strp += 7; 443 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL, 444 &result_type, &value); 445 if (**strp != ')') 446 return "missing `)'"; 447 ++*strp; 448 if (errmsg == NULL 449 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 450 return "not zero"; /* any string will do -- will never be seen. */ 451 *valuep = value; 452 return errmsg; 453 } 454 455 if (**strp == '%') 456 return "invalid %function() here"; 457 458 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_NONE, 459 &result_type, &value); 460 if (errmsg == NULL 461 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 462 return "not zero"; /* any string will do -- will never be seen. */ 463 464 return errmsg; 465 } 466 467 static const char * 468 parse_unsigned7 (CGEN_CPU_DESC cd, const char **strp, 469 enum cgen_operand_type opindex, unsigned long *valuep) 470 { 471 const char *errmsg; 472 bfd_vma value; 473 474 /* fprintf(stderr, "dj: unsigned7 parse `%s'\n", *strp); */ 475 476 if (strncasecmp (*strp, "%tpoff(", 7) == 0) 477 { 478 int reloc; 479 *strp += 7; 480 switch (opindex) 481 { 482 case MEP_OPERAND_UDISP7: 483 reloc = BFD_RELOC_MEP_TPREL7; 484 break; 485 case MEP_OPERAND_UDISP7A2: 486 reloc = BFD_RELOC_MEP_TPREL7A2; 487 break; 488 case MEP_OPERAND_UDISP7A4: 489 reloc = BFD_RELOC_MEP_TPREL7A4; 490 break; 491 default: 492 /* Safe assumption? */ 493 abort (); 494 } 495 errmsg = cgen_parse_address (cd, strp, opindex, reloc, 496 NULL, &value); 497 if (**strp != ')') 498 return "missing `)'"; 499 ++*strp; 500 *valuep = value; 501 return errmsg; 502 } 503 504 if (**strp == '%') 505 /* xgettext:no-c-format */ 506 return _("invalid %function() here"); 507 508 return parse_mep_alignu (cd, strp, opindex, valuep); 509 } 510 511 static ATTRIBUTE_UNUSED const char * 512 parse_cdisp10 (CGEN_CPU_DESC cd, 513 const char **strp, 514 int opindex, 515 long *valuep) 516 { 517 const char *errmsg = 0; 518 signed long value; 519 long have_zero = 0; 520 int wide = 0; 521 int alignment; 522 523 switch (opindex) 524 { 525 case MEP_OPERAND_CDISP10A4: 526 alignment = 2; 527 break; 528 case MEP_OPERAND_CDISP10A2: 529 alignment = 1; 530 break; 531 case MEP_OPERAND_CDISP10: 532 default: 533 alignment = 0; 534 break; 535 } 536 537 if ((MEP_CPU & EF_MEP_CPU_MASK) == EF_MEP_CPU_C5) 538 wide = 1; 539 540 if (strncmp (*strp, "0x0", 3) == 0 541 || (**strp == '0' && *(*strp + 1) != 'x')) 542 have_zero = 1; 543 544 errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); 545 if (errmsg) 546 return errmsg; 547 548 if (wide) 549 { 550 if (value < -512 || value > 511) 551 return _("Immediate is out of range -512 to 511"); 552 } 553 else 554 { 555 if (value < -128 || value > 127) 556 return _("Immediate is out of range -128 to 127"); 557 } 558 559 if (value & ((1<<alignment)-1)) 560 return _("Value is not aligned enough"); 561 562 /* If this field may require a relocation then use larger dsp16. */ 563 if (! have_zero && value == 0) 564 return (wide ? _("Immediate is out of range -512 to 511") 565 : _("Immediate is out of range -128 to 127")); 566 567 *valuep = value; 568 return 0; 569 } 570 571 /* BEGIN LIGHTWEIGHT MACRO PROCESSOR. */ 572 573 #define MAXARGS 9 574 575 typedef struct 576 { 577 char *name; 578 char *expansion; 579 } macro; 580 581 typedef struct 582 { 583 const char *start; 584 int len; 585 } arg; 586 587 static macro const macros[] = 588 { 589 { "sizeof", "(`1.end + (- `1))"}, 590 { "startof", "(`1 | 0)" }, 591 { "align4", "(`1&(~3))"}, 592 /*{ "hi", "(((`1+0x8000)>>16) & 0xffff)" }, */ 593 /*{ "lo", "(`1 & 0xffff)" }, */ 594 /*{ "sdaoff", "((`1-__sdabase) & 0x7f)"}, */ 595 /*{ "tpoff", "((`1-__tpbase) & 0x7f)"}, */ 596 { 0,0 } 597 }; 598 599 static char * expand_string (const char *, int); 600 601 static const char * 602 mep_cgen_expand_macros_and_parse_operand 603 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); 604 605 static char * 606 str_append (char *dest, const char *input, int len) 607 { 608 char *new_dest; 609 int oldlen; 610 611 if (len == 0) 612 return dest; 613 /* printf("str_append: <<%s>>, <<%s>>, %d\n", dest, input, len); */ 614 oldlen = (dest ? strlen(dest) : 0); 615 new_dest = realloc (dest, oldlen + len + 1); 616 memset (new_dest + oldlen, 0, len + 1); 617 return strncat (new_dest, input, len); 618 } 619 620 static const macro * 621 lookup_macro (const char *name) 622 { 623 const macro *m; 624 625 for (m = macros; m->name; ++m) 626 if (strncmp (m->name, name, strlen(m->name)) == 0) 627 return m; 628 629 return 0; 630 } 631 632 static char * 633 expand_macro (arg *args, int narg, const macro *mac) 634 { 635 char *result = 0, *rescanned_result = 0; 636 char *e = mac->expansion; 637 char *mark = e; 638 int mac_arg = 0; 639 640 /* printf("expanding macro %s with %d args\n", mac->name, narg + 1); */ 641 while (*e) 642 { 643 if (*e == '`' 644 && (*e+1) 645 && ((*(e + 1) - '1') <= MAXARGS) 646 && ((*(e + 1) - '1') <= narg)) 647 { 648 result = str_append (result, mark, e - mark); 649 mac_arg = (*(e + 1) - '1'); 650 /* printf("replacing `%d with %s\n", mac_arg+1, args[mac_arg].start); */ 651 result = str_append (result, args[mac_arg].start, args[mac_arg].len); 652 ++e; 653 mark = e+1; 654 } 655 ++e; 656 } 657 658 if (mark != e) 659 result = str_append (result, mark, e - mark); 660 661 if (result) 662 { 663 rescanned_result = expand_string (result, 0); 664 free (result); 665 return rescanned_result; 666 } 667 else 668 return result; 669 } 670 671 #define IN_TEXT 0 672 #define IN_ARGS 1 673 674 static char * 675 expand_string (const char *in, int first_only) 676 { 677 int num_expansions = 0; 678 int depth = 0; 679 int narg = -1; 680 arg args[MAXARGS]; 681 int state = IN_TEXT; 682 const char *mark = in; 683 const macro *pmacro = NULL; 684 char *expansion = 0; 685 char *result = 0; 686 687 while (*in) 688 { 689 switch (state) 690 { 691 case IN_TEXT: 692 if (*in == '%' && *(in + 1) && (!first_only || num_expansions == 0)) 693 { 694 pmacro = lookup_macro (in + 1); 695 if (pmacro) 696 { 697 /* printf("entering state %d at '%s'...\n", state, in); */ 698 result = str_append (result, mark, in - mark); 699 mark = in; 700 in += 1 + strlen (pmacro->name); 701 while (*in == ' ') ++in; 702 if (*in != '(') 703 { 704 state = IN_TEXT; 705 pmacro = NULL; 706 } 707 else 708 { 709 state = IN_ARGS; 710 narg = 0; 711 args[narg].start = in + 1; 712 args[narg].len = 0; 713 mark = in + 1; 714 } 715 } 716 } 717 break; 718 case IN_ARGS: 719 if (depth == 0) 720 { 721 switch (*in) 722 { 723 case ',': 724 narg++; 725 args[narg].start = (in + 1); 726 args[narg].len = 0; 727 break; 728 case ')': 729 state = IN_TEXT; 730 /* printf("entering state %d at '%s'...\n", state, in); */ 731 if (pmacro) 732 { 733 expansion = 0; 734 expansion = expand_macro (args, narg, pmacro); 735 num_expansions++; 736 if (expansion) 737 { 738 result = str_append (result, expansion, strlen (expansion)); 739 free (expansion); 740 } 741 } 742 else 743 { 744 result = str_append (result, mark, in - mark); 745 } 746 pmacro = NULL; 747 mark = in + 1; 748 break; 749 case '(': 750 depth++; 751 /* Fall through. */ 752 default: 753 args[narg].len++; 754 break; 755 } 756 } 757 else 758 { 759 if (*in == ')') 760 depth--; 761 if (narg > -1) 762 args[narg].len++; 763 } 764 } 765 ++in; 766 } 767 768 if (mark != in) 769 result = str_append (result, mark, in - mark); 770 771 return result; 772 } 773 774 #undef IN_ARGS 775 #undef IN_TEXT 776 #undef MAXARGS 777 778 779 /* END LIGHTWEIGHT MACRO PROCESSOR. */ 780 781 const char * mep_cgen_parse_operand 782 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); 783 784 const char * 785 mep_cgen_expand_macros_and_parse_operand (CGEN_CPU_DESC cd, int opindex, 786 const char ** strp_in, CGEN_FIELDS * fields) 787 { 788 const char * errmsg = NULL; 789 char *str = 0, *hold = 0; 790 const char **strp = 0; 791 792 /* Set up a new pointer to macro-expanded string. */ 793 str = expand_string (*strp_in, 1); 794 /* fprintf (stderr, " expanded <<%s>> to <<%s>>\n", *strp_in, str); */ 795 796 hold = str; 797 strp = (const char **)(&str); 798 799 errmsg = mep_cgen_parse_operand (cd, opindex, strp, fields); 800 801 /* Now work out the advance. */ 802 if (strlen (str) == 0) 803 *strp_in += strlen (*strp_in); 804 805 else 806 { 807 if (strstr (*strp_in, str)) 808 /* A macro-expansion was pulled off the front. */ 809 *strp_in = strstr (*strp_in, str); 810 else 811 /* A non-macro-expansion was pulled off the front. */ 812 *strp_in += (str - hold); 813 } 814 815 free (hold); 816 817 return errmsg; 818 } 819 820 #define CGEN_ASM_INIT_HOOK (cd->parse_operand = mep_cgen_expand_macros_and_parse_operand); 821 822 /* -- dis.c */ 823 824 const char * mep_cgen_parse_operand 825 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); 826 827 /* Main entry point for operand parsing. 828 829 This function is basically just a big switch statement. Earlier versions 830 used tables to look up the function to use, but 831 - if the table contains both assembler and disassembler functions then 832 the disassembler contains much of the assembler and vice-versa, 833 - there's a lot of inlining possibilities as things grow, 834 - using a switch statement avoids the function call overhead. 835 836 This function could be moved into `parse_insn_normal', but keeping it 837 separate makes clear the interface between `parse_insn_normal' and each of 838 the handlers. */ 839 840 const char * 841 mep_cgen_parse_operand (CGEN_CPU_DESC cd, 842 int opindex, 843 const char ** strp, 844 CGEN_FIELDS * fields) 845 { 846 const char * errmsg = NULL; 847 /* Used by scalar operands that still need to be parsed. */ 848 long junk ATTRIBUTE_UNUSED; 849 850 switch (opindex) 851 { 852 case MEP_OPERAND_ADDR24A4 : 853 errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_ADDR24A4, (unsigned long *) (& fields->f_24u8a4n)); 854 break; 855 case MEP_OPERAND_C5RMUIMM20 : 856 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_C5RMUIMM20, (unsigned long *) (& fields->f_c5_rmuimm20)); 857 break; 858 case MEP_OPERAND_C5RNMUIMM24 : 859 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_C5RNMUIMM24, (unsigned long *) (& fields->f_c5_rnmuimm24)); 860 break; 861 case MEP_OPERAND_CALLNUM : 862 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CALLNUM, (unsigned long *) (& fields->f_callnum)); 863 break; 864 case MEP_OPERAND_CCCC : 865 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CCCC, (unsigned long *) (& fields->f_rm)); 866 break; 867 case MEP_OPERAND_CCRN : 868 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr, & fields->f_ccrn); 869 break; 870 case MEP_OPERAND_CDISP10 : 871 errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10, (long *) (& fields->f_cdisp10)); 872 break; 873 case MEP_OPERAND_CDISP10A2 : 874 errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A2, (long *) (& fields->f_cdisp10)); 875 break; 876 case MEP_OPERAND_CDISP10A4 : 877 errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A4, (long *) (& fields->f_cdisp10)); 878 break; 879 case MEP_OPERAND_CDISP10A8 : 880 errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A8, (long *) (& fields->f_cdisp10)); 881 break; 882 case MEP_OPERAND_CDISP12 : 883 errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_CDISP12, (long *) (& fields->f_12s20)); 884 break; 885 case MEP_OPERAND_CIMM4 : 886 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CIMM4, (unsigned long *) (& fields->f_rn)); 887 break; 888 case MEP_OPERAND_CIMM5 : 889 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CIMM5, (unsigned long *) (& fields->f_5u24)); 890 break; 891 case MEP_OPERAND_CODE16 : 892 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CODE16, (unsigned long *) (& fields->f_16u16)); 893 break; 894 case MEP_OPERAND_CODE24 : 895 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CODE24, (unsigned long *) (& fields->f_24u4n)); 896 break; 897 case MEP_OPERAND_CP_FLAG : 898 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr, & junk); 899 break; 900 case MEP_OPERAND_CRN : 901 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr, & fields->f_crn); 902 break; 903 case MEP_OPERAND_CRN64 : 904 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_crn); 905 break; 906 case MEP_OPERAND_CRNX : 907 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr, & fields->f_crnx); 908 break; 909 case MEP_OPERAND_CRNX64 : 910 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_crnx); 911 break; 912 case MEP_OPERAND_CROC : 913 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u7); 914 break; 915 case MEP_OPERAND_CROP : 916 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u23); 917 break; 918 case MEP_OPERAND_CRPC : 919 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u26); 920 break; 921 case MEP_OPERAND_CRPP : 922 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u18); 923 break; 924 case MEP_OPERAND_CRQC : 925 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u21); 926 break; 927 case MEP_OPERAND_CRQP : 928 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u13); 929 break; 930 case MEP_OPERAND_CSRN : 931 errmsg = parse_csrn (cd, strp, & mep_cgen_opval_h_csr, & fields->f_csrn); 932 break; 933 case MEP_OPERAND_CSRN_IDX : 934 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, (unsigned long *) (& fields->f_csrn)); 935 break; 936 case MEP_OPERAND_DBG : 937 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 938 break; 939 case MEP_OPERAND_DEPC : 940 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 941 break; 942 case MEP_OPERAND_EPC : 943 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 944 break; 945 case MEP_OPERAND_EXC : 946 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 947 break; 948 case MEP_OPERAND_HI : 949 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 950 break; 951 case MEP_OPERAND_IMM16P0 : 952 errmsg = parse_unsigned16_range (cd, strp, MEP_OPERAND_IMM16P0, (unsigned long *) (& fields->f_ivc2_imm16p0)); 953 break; 954 case MEP_OPERAND_IMM3P12 : 955 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P12, (unsigned long *) (& fields->f_ivc2_3u12)); 956 break; 957 case MEP_OPERAND_IMM3P25 : 958 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P25, (unsigned long *) (& fields->f_ivc2_3u25)); 959 break; 960 case MEP_OPERAND_IMM3P4 : 961 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P4, (unsigned long *) (& fields->f_ivc2_3u4)); 962 break; 963 case MEP_OPERAND_IMM3P5 : 964 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P5, (unsigned long *) (& fields->f_ivc2_3u5)); 965 break; 966 case MEP_OPERAND_IMM3P9 : 967 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P9, (unsigned long *) (& fields->f_ivc2_3u9)); 968 break; 969 case MEP_OPERAND_IMM4P10 : 970 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P10, (unsigned long *) (& fields->f_ivc2_4u10)); 971 break; 972 case MEP_OPERAND_IMM4P4 : 973 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P4, (unsigned long *) (& fields->f_ivc2_4u4)); 974 break; 975 case MEP_OPERAND_IMM4P8 : 976 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P8, (unsigned long *) (& fields->f_ivc2_4u8)); 977 break; 978 case MEP_OPERAND_IMM5P23 : 979 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P23, (unsigned long *) (& fields->f_ivc2_5u23)); 980 break; 981 case MEP_OPERAND_IMM5P3 : 982 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P3, (unsigned long *) (& fields->f_ivc2_5u3)); 983 break; 984 case MEP_OPERAND_IMM5P7 : 985 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P7, (unsigned long *) (& fields->f_ivc2_5u7)); 986 break; 987 case MEP_OPERAND_IMM5P8 : 988 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P8, (unsigned long *) (& fields->f_ivc2_5u8)); 989 break; 990 case MEP_OPERAND_IMM6P2 : 991 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM6P2, (unsigned long *) (& fields->f_ivc2_6u2)); 992 break; 993 case MEP_OPERAND_IMM6P6 : 994 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM6P6, (unsigned long *) (& fields->f_ivc2_6u6)); 995 break; 996 case MEP_OPERAND_IMM8P0 : 997 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P0, (unsigned long *) (& fields->f_ivc2_8u0)); 998 break; 999 case MEP_OPERAND_IMM8P20 : 1000 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P20, (unsigned long *) (& fields->f_ivc2_8u20)); 1001 break; 1002 case MEP_OPERAND_IMM8P4 : 1003 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P4, (unsigned long *) (& fields->f_ivc2_8u4)); 1004 break; 1005 case MEP_OPERAND_IVC_X_0_2 : 1006 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_2, (unsigned long *) (& fields->f_ivc2_2u0)); 1007 break; 1008 case MEP_OPERAND_IVC_X_0_3 : 1009 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_3, (unsigned long *) (& fields->f_ivc2_3u0)); 1010 break; 1011 case MEP_OPERAND_IVC_X_0_4 : 1012 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_4, (unsigned long *) (& fields->f_ivc2_4u0)); 1013 break; 1014 case MEP_OPERAND_IVC_X_0_5 : 1015 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_5, (unsigned long *) (& fields->f_ivc2_5u0)); 1016 break; 1017 case MEP_OPERAND_IVC_X_6_1 : 1018 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_1, (unsigned long *) (& fields->f_ivc2_1u6)); 1019 break; 1020 case MEP_OPERAND_IVC_X_6_2 : 1021 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_2, (unsigned long *) (& fields->f_ivc2_2u6)); 1022 break; 1023 case MEP_OPERAND_IVC_X_6_3 : 1024 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_3, (unsigned long *) (& fields->f_ivc2_3u6)); 1025 break; 1026 case MEP_OPERAND_IVC2_ACC0_0 : 1027 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1028 break; 1029 case MEP_OPERAND_IVC2_ACC0_1 : 1030 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1031 break; 1032 case MEP_OPERAND_IVC2_ACC0_2 : 1033 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1034 break; 1035 case MEP_OPERAND_IVC2_ACC0_3 : 1036 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1037 break; 1038 case MEP_OPERAND_IVC2_ACC0_4 : 1039 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1040 break; 1041 case MEP_OPERAND_IVC2_ACC0_5 : 1042 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1043 break; 1044 case MEP_OPERAND_IVC2_ACC0_6 : 1045 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1046 break; 1047 case MEP_OPERAND_IVC2_ACC0_7 : 1048 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1049 break; 1050 case MEP_OPERAND_IVC2_ACC1_0 : 1051 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1052 break; 1053 case MEP_OPERAND_IVC2_ACC1_1 : 1054 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1055 break; 1056 case MEP_OPERAND_IVC2_ACC1_2 : 1057 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1058 break; 1059 case MEP_OPERAND_IVC2_ACC1_3 : 1060 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1061 break; 1062 case MEP_OPERAND_IVC2_ACC1_4 : 1063 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1064 break; 1065 case MEP_OPERAND_IVC2_ACC1_5 : 1066 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1067 break; 1068 case MEP_OPERAND_IVC2_ACC1_6 : 1069 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1070 break; 1071 case MEP_OPERAND_IVC2_ACC1_7 : 1072 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1073 break; 1074 case MEP_OPERAND_IVC2_CC : 1075 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1076 break; 1077 case MEP_OPERAND_IVC2_COFA0 : 1078 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1079 break; 1080 case MEP_OPERAND_IVC2_COFA1 : 1081 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1082 break; 1083 case MEP_OPERAND_IVC2_COFR0 : 1084 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1085 break; 1086 case MEP_OPERAND_IVC2_COFR1 : 1087 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1088 break; 1089 case MEP_OPERAND_IVC2_CSAR0 : 1090 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1091 break; 1092 case MEP_OPERAND_IVC2_CSAR1 : 1093 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); 1094 break; 1095 case MEP_OPERAND_IVC2C3CCRN : 1096 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & fields->f_ivc2_ccrn_c3); 1097 break; 1098 case MEP_OPERAND_IVC2CCRN : 1099 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & fields->f_ivc2_ccrn); 1100 break; 1101 case MEP_OPERAND_IVC2CRN : 1102 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_crnx); 1103 break; 1104 case MEP_OPERAND_IVC2RM : 1105 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_ivc2_crm); 1106 break; 1107 case MEP_OPERAND_LO : 1108 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1109 break; 1110 case MEP_OPERAND_LP : 1111 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1112 break; 1113 case MEP_OPERAND_MB0 : 1114 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1115 break; 1116 case MEP_OPERAND_MB1 : 1117 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1118 break; 1119 case MEP_OPERAND_ME0 : 1120 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1121 break; 1122 case MEP_OPERAND_ME1 : 1123 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1124 break; 1125 case MEP_OPERAND_NPC : 1126 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1127 break; 1128 case MEP_OPERAND_OPT : 1129 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1130 break; 1131 case MEP_OPERAND_PCABS24A2 : 1132 errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_PCABS24A2, (unsigned long *) (& fields->f_24u5a2n)); 1133 break; 1134 case MEP_OPERAND_PCREL12A2 : 1135 errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL12A2, (long *) (& fields->f_12s4a2)); 1136 break; 1137 case MEP_OPERAND_PCREL17A2 : 1138 errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL17A2, (long *) (& fields->f_17s16a2)); 1139 break; 1140 case MEP_OPERAND_PCREL24A2 : 1141 errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL24A2, (long *) (& fields->f_24s5a2n)); 1142 break; 1143 case MEP_OPERAND_PCREL8A2 : 1144 errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL8A2, (long *) (& fields->f_8s8a2)); 1145 break; 1146 case MEP_OPERAND_PSW : 1147 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1148 break; 1149 case MEP_OPERAND_R0 : 1150 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); 1151 break; 1152 case MEP_OPERAND_R1 : 1153 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); 1154 break; 1155 case MEP_OPERAND_RL : 1156 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rl); 1157 break; 1158 case MEP_OPERAND_RL5 : 1159 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rl5); 1160 break; 1161 case MEP_OPERAND_RM : 1162 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rm); 1163 break; 1164 case MEP_OPERAND_RMA : 1165 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rm); 1166 break; 1167 case MEP_OPERAND_RN : 1168 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); 1169 break; 1170 case MEP_OPERAND_RN3 : 1171 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); 1172 break; 1173 case MEP_OPERAND_RN3C : 1174 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); 1175 break; 1176 case MEP_OPERAND_RN3L : 1177 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); 1178 break; 1179 case MEP_OPERAND_RN3S : 1180 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); 1181 break; 1182 case MEP_OPERAND_RN3UC : 1183 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); 1184 break; 1185 case MEP_OPERAND_RN3UL : 1186 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); 1187 break; 1188 case MEP_OPERAND_RN3US : 1189 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); 1190 break; 1191 case MEP_OPERAND_RNC : 1192 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); 1193 break; 1194 case MEP_OPERAND_RNL : 1195 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); 1196 break; 1197 case MEP_OPERAND_RNS : 1198 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); 1199 break; 1200 case MEP_OPERAND_RNUC : 1201 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); 1202 break; 1203 case MEP_OPERAND_RNUL : 1204 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); 1205 break; 1206 case MEP_OPERAND_RNUS : 1207 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); 1208 break; 1209 case MEP_OPERAND_SAR : 1210 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); 1211 break; 1212 case MEP_OPERAND_SDISP16 : 1213 errmsg = parse_signed16 (cd, strp, MEP_OPERAND_SDISP16, (long *) (& fields->f_16s16)); 1214 break; 1215 case MEP_OPERAND_SIMM16 : 1216 errmsg = parse_signed16 (cd, strp, MEP_OPERAND_SIMM16, (long *) (& fields->f_16s16)); 1217 break; 1218 case MEP_OPERAND_SIMM16P0 : 1219 errmsg = parse_signed16_range (cd, strp, MEP_OPERAND_SIMM16P0, (long *) (& fields->f_ivc2_simm16p0)); 1220 break; 1221 case MEP_OPERAND_SIMM6 : 1222 errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM6, (long *) (& fields->f_6s8)); 1223 break; 1224 case MEP_OPERAND_SIMM8 : 1225 errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8, (long *) (& fields->f_8s8)); 1226 break; 1227 case MEP_OPERAND_SIMM8P0 : 1228 errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P0, (long *) (& fields->f_ivc2_8s0)); 1229 break; 1230 case MEP_OPERAND_SIMM8P20 : 1231 errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P20, (long *) (& fields->f_ivc2_8s20)); 1232 break; 1233 case MEP_OPERAND_SIMM8P4 : 1234 errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P4, (long *) (& fields->f_ivc2_8s4)); 1235 break; 1236 case MEP_OPERAND_SP : 1237 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); 1238 break; 1239 case MEP_OPERAND_SPR : 1240 errmsg = parse_spreg (cd, strp, & mep_cgen_opval_h_gpr, & junk); 1241 break; 1242 case MEP_OPERAND_TP : 1243 errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); 1244 break; 1245 case MEP_OPERAND_TPR : 1246 errmsg = parse_tpreg (cd, strp, & mep_cgen_opval_h_gpr, & junk); 1247 break; 1248 case MEP_OPERAND_UDISP2 : 1249 errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_UDISP2, (long *) (& fields->f_2u6)); 1250 break; 1251 case MEP_OPERAND_UDISP7 : 1252 errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7, (unsigned long *) (& fields->f_7u9)); 1253 break; 1254 case MEP_OPERAND_UDISP7A2 : 1255 errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7A2, (unsigned long *) (& fields->f_7u9a2)); 1256 break; 1257 case MEP_OPERAND_UDISP7A4 : 1258 errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7A4, (unsigned long *) (& fields->f_7u9a4)); 1259 break; 1260 case MEP_OPERAND_UIMM16 : 1261 errmsg = parse_unsigned16 (cd, strp, MEP_OPERAND_UIMM16, (unsigned long *) (& fields->f_16u16)); 1262 break; 1263 case MEP_OPERAND_UIMM2 : 1264 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM2, (unsigned long *) (& fields->f_2u10)); 1265 break; 1266 case MEP_OPERAND_UIMM24 : 1267 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM24, (unsigned long *) (& fields->f_24u8n)); 1268 break; 1269 case MEP_OPERAND_UIMM3 : 1270 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM3, (unsigned long *) (& fields->f_3u5)); 1271 break; 1272 case MEP_OPERAND_UIMM4 : 1273 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM4, (unsigned long *) (& fields->f_4u8)); 1274 break; 1275 case MEP_OPERAND_UIMM5 : 1276 errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM5, (unsigned long *) (& fields->f_5u8)); 1277 break; 1278 case MEP_OPERAND_UIMM7A4 : 1279 errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_UIMM7A4, (unsigned long *) (& fields->f_7u9a4)); 1280 break; 1281 case MEP_OPERAND_ZERO : 1282 errmsg = parse_zero (cd, strp, MEP_OPERAND_ZERO, (long *) (& junk)); 1283 break; 1284 1285 default : 1286 /* xgettext:c-format */ 1287 opcodes_error_handler 1288 (_("internal error: unrecognized field %d while parsing"), 1289 opindex); 1290 abort (); 1291 } 1292 1293 return errmsg; 1294 } 1295 1296 cgen_parse_fn * const mep_cgen_parse_handlers[] = 1297 { 1298 parse_insn_normal, 1299 }; 1300 1301 void 1302 mep_cgen_init_asm (CGEN_CPU_DESC cd) 1303 { 1304 mep_cgen_init_opcode_table (cd); 1305 mep_cgen_init_ibld_table (cd); 1306 cd->parse_handlers = & mep_cgen_parse_handlers[0]; 1307 cd->parse_operand = mep_cgen_parse_operand; 1308 #ifdef CGEN_ASM_INIT_HOOK 1309 CGEN_ASM_INIT_HOOK 1310 #endif 1311 } 1312 1313 1314 1315 /* Regex construction routine. 1316 1317 This translates an opcode syntax string into a regex string, 1318 by replacing any non-character syntax element (such as an 1319 opcode) with the pattern '.*' 1320 1321 It then compiles the regex and stores it in the opcode, for 1322 later use by mep_cgen_assemble_insn 1323 1324 Returns NULL for success, an error message for failure. */ 1325 1326 char * 1327 mep_cgen_build_insn_regex (CGEN_INSN *insn) 1328 { 1329 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); 1330 const char *mnem = CGEN_INSN_MNEMONIC (insn); 1331 char rxbuf[CGEN_MAX_RX_ELEMENTS]; 1332 char *rx = rxbuf; 1333 const CGEN_SYNTAX_CHAR_TYPE *syn; 1334 int reg_err; 1335 1336 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); 1337 1338 /* Mnemonics come first in the syntax string. */ 1339 if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) 1340 return _("missing mnemonic in syntax string"); 1341 ++syn; 1342 1343 /* Generate a case sensitive regular expression that emulates case 1344 insensitive matching in the "C" locale. We cannot generate a case 1345 insensitive regular expression because in Turkish locales, 'i' and 'I' 1346 are not equal modulo case conversion. */ 1347 1348 /* Copy the literal mnemonic out of the insn. */ 1349 for (; *mnem; mnem++) 1350 { 1351 char c = *mnem; 1352 1353 if (ISALPHA (c)) 1354 { 1355 *rx++ = '['; 1356 *rx++ = TOLOWER (c); 1357 *rx++ = TOUPPER (c); 1358 *rx++ = ']'; 1359 } 1360 else 1361 *rx++ = c; 1362 } 1363 1364 /* Copy any remaining literals from the syntax string into the rx. */ 1365 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) 1366 { 1367 if (CGEN_SYNTAX_CHAR_P (* syn)) 1368 { 1369 char c = CGEN_SYNTAX_CHAR (* syn); 1370 1371 switch (c) 1372 { 1373 /* Escape any regex metacharacters in the syntax. */ 1374 case '.': case '[': case '\\': 1375 case '*': case '^': case '$': 1376 1377 #ifdef CGEN_ESCAPE_EXTENDED_REGEX 1378 case '?': case '{': case '}': 1379 case '(': case ')': case '*': 1380 case '|': case '+': case ']': 1381 #endif 1382 *rx++ = '\\'; 1383 *rx++ = c; 1384 break; 1385 1386 default: 1387 if (ISALPHA (c)) 1388 { 1389 *rx++ = '['; 1390 *rx++ = TOLOWER (c); 1391 *rx++ = TOUPPER (c); 1392 *rx++ = ']'; 1393 } 1394 else 1395 *rx++ = c; 1396 break; 1397 } 1398 } 1399 else 1400 { 1401 /* Replace non-syntax fields with globs. */ 1402 *rx++ = '.'; 1403 *rx++ = '*'; 1404 } 1405 } 1406 1407 /* Trailing whitespace ok. */ 1408 * rx++ = '['; 1409 * rx++ = ' '; 1410 * rx++ = '\t'; 1411 * rx++ = ']'; 1412 * rx++ = '*'; 1413 1414 /* But anchor it after that. */ 1415 * rx++ = '$'; 1416 * rx = '\0'; 1417 1418 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); 1419 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); 1420 1421 if (reg_err == 0) 1422 return NULL; 1423 else 1424 { 1425 static char msg[80]; 1426 1427 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); 1428 regfree ((regex_t *) CGEN_INSN_RX (insn)); 1429 free (CGEN_INSN_RX (insn)); 1430 (CGEN_INSN_RX (insn)) = NULL; 1431 return msg; 1432 } 1433 } 1434 1435 1436 /* Default insn parser. 1437 1438 The syntax string is scanned and operands are parsed and stored in FIELDS. 1439 Relocs are queued as we go via other callbacks. 1440 1441 ??? Note that this is currently an all-or-nothing parser. If we fail to 1442 parse the instruction, we return 0 and the caller will start over from 1443 the beginning. Backtracking will be necessary in parsing subexpressions, 1444 but that can be handled there. Not handling backtracking here may get 1445 expensive in the case of the m68k. Deal with later. 1446 1447 Returns NULL for success, an error message for failure. */ 1448 1449 static const char * 1450 parse_insn_normal (CGEN_CPU_DESC cd, 1451 const CGEN_INSN *insn, 1452 const char **strp, 1453 CGEN_FIELDS *fields) 1454 { 1455 /* ??? Runtime added insns not handled yet. */ 1456 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); 1457 const char *str = *strp; 1458 const char *errmsg; 1459 const char *p; 1460 const CGEN_SYNTAX_CHAR_TYPE * syn; 1461 #ifdef CGEN_MNEMONIC_OPERANDS 1462 /* FIXME: wip */ 1463 int past_opcode_p; 1464 #endif 1465 1466 /* For now we assume the mnemonic is first (there are no leading operands). 1467 We can parse it without needing to set up operand parsing. 1468 GAS's input scrubber will ensure mnemonics are lowercase, but we may 1469 not be called from GAS. */ 1470 p = CGEN_INSN_MNEMONIC (insn); 1471 while (*p && TOLOWER (*p) == TOLOWER (*str)) 1472 ++p, ++str; 1473 1474 if (* p) 1475 return _("unrecognized instruction"); 1476 1477 #ifndef CGEN_MNEMONIC_OPERANDS 1478 if (* str && ! ISSPACE (* str)) 1479 return _("unrecognized instruction"); 1480 #endif 1481 1482 CGEN_INIT_PARSE (cd); 1483 cgen_init_parse_operand (cd); 1484 #ifdef CGEN_MNEMONIC_OPERANDS 1485 past_opcode_p = 0; 1486 #endif 1487 1488 /* We don't check for (*str != '\0') here because we want to parse 1489 any trailing fake arguments in the syntax string. */ 1490 syn = CGEN_SYNTAX_STRING (syntax); 1491 1492 /* Mnemonics come first for now, ensure valid string. */ 1493 if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) 1494 abort (); 1495 1496 ++syn; 1497 1498 while (* syn != 0) 1499 { 1500 /* Non operand chars must match exactly. */ 1501 if (CGEN_SYNTAX_CHAR_P (* syn)) 1502 { 1503 /* FIXME: While we allow for non-GAS callers above, we assume the 1504 first char after the mnemonic part is a space. */ 1505 /* FIXME: We also take inappropriate advantage of the fact that 1506 GAS's input scrubber will remove extraneous blanks. */ 1507 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn))) 1508 { 1509 #ifdef CGEN_MNEMONIC_OPERANDS 1510 if (CGEN_SYNTAX_CHAR(* syn) == ' ') 1511 past_opcode_p = 1; 1512 #endif 1513 ++ syn; 1514 ++ str; 1515 } 1516 else if (*str) 1517 { 1518 /* Syntax char didn't match. Can't be this insn. */ 1519 static char msg [80]; 1520 1521 /* xgettext:c-format */ 1522 sprintf (msg, _("syntax error (expected char `%c', found `%c')"), 1523 CGEN_SYNTAX_CHAR(*syn), *str); 1524 return msg; 1525 } 1526 else 1527 { 1528 /* Ran out of input. */ 1529 static char msg [80]; 1530 1531 /* xgettext:c-format */ 1532 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), 1533 CGEN_SYNTAX_CHAR(*syn)); 1534 return msg; 1535 } 1536 continue; 1537 } 1538 1539 #ifdef CGEN_MNEMONIC_OPERANDS 1540 (void) past_opcode_p; 1541 #endif 1542 /* We have an operand of some sort. */ 1543 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields); 1544 if (errmsg) 1545 return errmsg; 1546 1547 /* Done with this operand, continue with next one. */ 1548 ++ syn; 1549 } 1550 1551 /* If we're at the end of the syntax string, we're done. */ 1552 if (* syn == 0) 1553 { 1554 /* FIXME: For the moment we assume a valid `str' can only contain 1555 blanks now. IE: We needn't try again with a longer version of 1556 the insn and it is assumed that longer versions of insns appear 1557 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ 1558 while (ISSPACE (* str)) 1559 ++ str; 1560 1561 if (* str != '\0') 1562 return _("junk at end of line"); /* FIXME: would like to include `str' */ 1563 1564 return NULL; 1565 } 1566 1567 /* We couldn't parse it. */ 1568 return _("unrecognized instruction"); 1569 } 1570 1571 /* Main entry point. 1572 This routine is called for each instruction to be assembled. 1573 STR points to the insn to be assembled. 1574 We assume all necessary tables have been initialized. 1575 The assembled instruction, less any fixups, is stored in BUF. 1576 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value 1577 still needs to be converted to target byte order, otherwise BUF is an array 1578 of bytes in target byte order. 1579 The result is a pointer to the insn's entry in the opcode table, 1580 or NULL if an error occured (an error message will have already been 1581 printed). 1582 1583 Note that when processing (non-alias) macro-insns, 1584 this function recurses. 1585 1586 ??? It's possible to make this cpu-independent. 1587 One would have to deal with a few minor things. 1588 At this point in time doing so would be more of a curiosity than useful 1589 [for example this file isn't _that_ big], but keeping the possibility in 1590 mind helps keep the design clean. */ 1591 1592 const CGEN_INSN * 1593 mep_cgen_assemble_insn (CGEN_CPU_DESC cd, 1594 const char *str, 1595 CGEN_FIELDS *fields, 1596 CGEN_INSN_BYTES_PTR buf, 1597 char **errmsg) 1598 { 1599 const char *start; 1600 CGEN_INSN_LIST *ilist; 1601 const char *parse_errmsg = NULL; 1602 const char *insert_errmsg = NULL; 1603 int recognized_mnemonic = 0; 1604 1605 /* Skip leading white space. */ 1606 while (ISSPACE (* str)) 1607 ++ str; 1608 1609 /* The instructions are stored in hashed lists. 1610 Get the first in the list. */ 1611 ilist = CGEN_ASM_LOOKUP_INSN (cd, str); 1612 1613 /* Keep looking until we find a match. */ 1614 start = str; 1615 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) 1616 { 1617 const CGEN_INSN *insn = ilist->insn; 1618 recognized_mnemonic = 1; 1619 1620 #ifdef CGEN_VALIDATE_INSN_SUPPORTED 1621 /* Not usually needed as unsupported opcodes 1622 shouldn't be in the hash lists. */ 1623 /* Is this insn supported by the selected cpu? */ 1624 if (! mep_cgen_insn_supported (cd, insn)) 1625 continue; 1626 #endif 1627 /* If the RELAXED attribute is set, this is an insn that shouldn't be 1628 chosen immediately. Instead, it is used during assembler/linker 1629 relaxation if possible. */ 1630 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) 1631 continue; 1632 1633 str = start; 1634 1635 /* Skip this insn if str doesn't look right lexically. */ 1636 if (CGEN_INSN_RX (insn) != NULL && 1637 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) 1638 continue; 1639 1640 /* Allow parse/insert handlers to obtain length of insn. */ 1641 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); 1642 1643 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); 1644 if (parse_errmsg != NULL) 1645 continue; 1646 1647 /* ??? 0 is passed for `pc'. */ 1648 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, 1649 (bfd_vma) 0); 1650 if (insert_errmsg != NULL) 1651 continue; 1652 1653 /* It is up to the caller to actually output the insn and any 1654 queued relocs. */ 1655 return insn; 1656 } 1657 1658 { 1659 static char errbuf[150]; 1660 const char *tmp_errmsg; 1661 #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS 1662 #define be_verbose 1 1663 #else 1664 #define be_verbose 0 1665 #endif 1666 1667 if (be_verbose) 1668 { 1669 /* If requesting verbose error messages, use insert_errmsg. 1670 Failing that, use parse_errmsg. */ 1671 tmp_errmsg = (insert_errmsg ? insert_errmsg : 1672 parse_errmsg ? parse_errmsg : 1673 recognized_mnemonic ? 1674 _("unrecognized form of instruction") : 1675 _("unrecognized instruction")); 1676 1677 if (strlen (start) > 50) 1678 /* xgettext:c-format */ 1679 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); 1680 else 1681 /* xgettext:c-format */ 1682 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); 1683 } 1684 else 1685 { 1686 if (strlen (start) > 50) 1687 /* xgettext:c-format */ 1688 sprintf (errbuf, _("bad instruction `%.50s...'"), start); 1689 else 1690 /* xgettext:c-format */ 1691 sprintf (errbuf, _("bad instruction `%.50s'"), start); 1692 } 1693 1694 *errmsg = errbuf; 1695 return NULL; 1696 } 1697 } 1698