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) 1996-2018 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 return _("invalid %function() here"); 309 310 return cgen_parse_signed_integer (cd, strp, opindex, valuep); 311 } 312 313 static const char * 314 parse_unsigned16 (CGEN_CPU_DESC cd, 315 const char **strp, 316 int opindex, 317 unsigned long *valuep) 318 { 319 return parse_lo16 (cd, strp, opindex, (long *) valuep, 0); 320 } 321 322 static const char * 323 parse_signed16_range (CGEN_CPU_DESC cd, 324 const char **strp, 325 int opindex, 326 signed long *valuep) 327 { 328 const char *errmsg = 0; 329 signed long value; 330 331 errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); 332 if (errmsg) 333 return errmsg; 334 335 if (value < -32768 || value > 32767) 336 return _("Immediate is out of range -32768 to 32767"); 337 338 *valuep = value; 339 return 0; 340 } 341 342 static const char * 343 parse_unsigned16_range (CGEN_CPU_DESC cd, 344 const char **strp, 345 int opindex, 346 unsigned long *valuep) 347 { 348 const char *errmsg = 0; 349 unsigned long value; 350 351 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value); 352 if (errmsg) 353 return errmsg; 354 355 if (value > 65535) 356 return _("Immediate is out of range 0 to 65535"); 357 358 *valuep = value; 359 return 0; 360 } 361 362 /* A special case of parse_signed16 which accepts only the value zero. */ 363 364 static const char * 365 parse_zero (CGEN_CPU_DESC cd, const char **strp, int opindex, long *valuep) 366 { 367 const char *errmsg; 368 enum cgen_parse_operand_result result_type; 369 bfd_vma value; 370 371 /*fprintf(stderr, "dj: signed parse opindex `%s'\n", *strp);*/ 372 373 /* Prevent ($ry) from being attempted as an expression on 'sw $rx,($ry)'. 374 It will fail and cause ry to be listed as an undefined symbol in the 375 listing. */ 376 if (strncmp (*strp, "($", 2) == 0) 377 return "not zero"; /* any string will do -- will never be seen. */ 378 379 if (strncasecmp (*strp, "%lo(", 4) == 0) 380 { 381 *strp += 4; 382 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16, 383 &result_type, &value); 384 if (**strp != ')') 385 return "missing `)'"; 386 ++*strp; 387 if (errmsg == NULL 388 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 389 return "not zero"; /* any string will do -- will never be seen. */ 390 *valuep = value; 391 return errmsg; 392 } 393 394 if (strncasecmp (*strp, "%hi(", 4) == 0) 395 { 396 *strp += 4; 397 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S, 398 &result_type, &value); 399 if (**strp != ')') 400 return "missing `)'"; 401 ++*strp; 402 if (errmsg == NULL 403 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 404 return "not zero"; /* any string will do -- will never be seen. */ 405 *valuep = value; 406 return errmsg; 407 } 408 409 if (strncasecmp (*strp, "%uhi(", 5) == 0) 410 { 411 *strp += 5; 412 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U, 413 &result_type, &value); 414 if (**strp != ')') 415 return "missing `)'"; 416 ++*strp; 417 if (errmsg == NULL 418 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 419 return "not zero"; /* any string will do -- will never be seen. */ 420 *valuep = value; 421 return errmsg; 422 } 423 424 if (strncasecmp (*strp, "%sdaoff(", 8) == 0) 425 { 426 *strp += 8; 427 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL, 428 &result_type, &value); 429 if (**strp != ')') 430 return "missing `)'"; 431 ++*strp; 432 if (errmsg == NULL 433 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 434 return "not zero"; /* any string will do -- will never be seen. */ 435 *valuep = value; 436 return errmsg; 437 } 438 439 if (strncasecmp (*strp, "%tpoff(", 7) == 0) 440 { 441 *strp += 7; 442 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL, 443 &result_type, &value); 444 if (**strp != ')') 445 return "missing `)'"; 446 ++*strp; 447 if (errmsg == NULL 448 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 449 return "not zero"; /* any string will do -- will never be seen. */ 450 *valuep = value; 451 return errmsg; 452 } 453 454 if (**strp == '%') 455 return "invalid %function() here"; 456 457 errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_NONE, 458 &result_type, &value); 459 if (errmsg == NULL 460 && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) 461 return "not zero"; /* any string will do -- will never be seen. */ 462 463 return errmsg; 464 } 465 466 static const char * 467 parse_unsigned7 (CGEN_CPU_DESC cd, const char **strp, 468 enum cgen_operand_type opindex, unsigned long *valuep) 469 { 470 const char *errmsg; 471 bfd_vma value; 472 473 /* fprintf(stderr, "dj: unsigned7 parse `%s'\n", *strp); */ 474 475 if (strncasecmp (*strp, "%tpoff(", 7) == 0) 476 { 477 int reloc; 478 *strp += 7; 479 switch (opindex) 480 { 481 case MEP_OPERAND_UDISP7: 482 reloc = BFD_RELOC_MEP_TPREL7; 483 break; 484 case MEP_OPERAND_UDISP7A2: 485 reloc = BFD_RELOC_MEP_TPREL7A2; 486 break; 487 case MEP_OPERAND_UDISP7A4: 488 reloc = BFD_RELOC_MEP_TPREL7A4; 489 break; 490 default: 491 /* Safe assumption? */ 492 abort (); 493 } 494 errmsg = cgen_parse_address (cd, strp, opindex, reloc, 495 NULL, &value); 496 if (**strp != ')') 497 return "missing `)'"; 498 ++*strp; 499 *valuep = value; 500 return errmsg; 501 } 502 503 if (**strp == '%') 504 return _("invalid %function() here"); 505 506 return parse_mep_alignu (cd, strp, opindex, valuep); 507 } 508 509 static ATTRIBUTE_UNUSED const char * 510 parse_cdisp10 (CGEN_CPU_DESC cd, 511 const char **strp, 512 int opindex, 513 long *valuep) 514 { 515 const char *errmsg = 0; 516 signed long value; 517 long have_zero = 0; 518 int wide = 0; 519 int alignment; 520 521 switch (opindex) 522 { 523 case MEP_OPERAND_CDISP10A4: 524 alignment = 2; 525 break; 526 case MEP_OPERAND_CDISP10A2: 527 alignment = 1; 528 break; 529 case MEP_OPERAND_CDISP10: 530 default: 531 alignment = 0; 532 break; 533 } 534 535 if ((MEP_CPU & EF_MEP_CPU_MASK) == EF_MEP_CPU_C5) 536 wide = 1; 537 538 if (strncmp (*strp, "0x0", 3) == 0 539 || (**strp == '0' && *(*strp + 1) != 'x')) 540 have_zero = 1; 541 542 errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); 543 if (errmsg) 544 return errmsg; 545 546 if (wide) 547 { 548 if (value < -512 || value > 511) 549 return _("Immediate is out of range -512 to 511"); 550 } 551 else 552 { 553 if (value < -128 || value > 127) 554 return _("Immediate is out of range -128 to 127"); 555 } 556 557 if (value & ((1<<alignment)-1)) 558 return _("Value is not aligned enough"); 559 560 /* If this field may require a relocation then use larger dsp16. */ 561 if (! have_zero && value == 0) 562 return (wide ? _("Immediate is out of range -512 to 511") 563 : _("Immediate is out of range -128 to 127")); 564 565 *valuep = value; 566 return 0; 567 } 568 569 /* BEGIN LIGHTWEIGHT MACRO PROCESSOR. */ 570 571 #define MAXARGS 9 572 573 typedef struct 574 { 575 char *name; 576 char *expansion; 577 } macro; 578 579 typedef struct 580 { 581 const char *start; 582 int len; 583 } arg; 584 585 macro macros[] = 586 { 587 { "sizeof", "(`1.end + (- `1))"}, 588 { "startof", "(`1 | 0)" }, 589 { "align4", "(`1&(~3))"}, 590 /*{ "hi", "(((`1+0x8000)>>16) & 0xffff)" }, */ 591 /*{ "lo", "(`1 & 0xffff)" }, */ 592 /*{ "sdaoff", "((`1-__sdabase) & 0x7f)"}, */ 593 /*{ "tpoff", "((`1-__tpbase) & 0x7f)"}, */ 594 { 0,0 } 595 }; 596 597 static char * expand_string (const char *, int); 598 599 static const char * 600 mep_cgen_expand_macros_and_parse_operand 601 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); 602 603 static char * 604 str_append (char *dest, const char *input, int len) 605 { 606 char *new_dest; 607 int oldlen; 608 609 if (len == 0) 610 return dest; 611 /* printf("str_append: <<%s>>, <<%s>>, %d\n", dest, input, len); */ 612 oldlen = (dest ? strlen(dest) : 0); 613 new_dest = realloc (dest, oldlen + len + 1); 614 memset (new_dest + oldlen, 0, len + 1); 615 return strncat (new_dest, input, len); 616 } 617 618 static macro * 619 lookup_macro (const char *name) 620 { 621 macro *m; 622 623 for (m = macros; m->name; ++m) 624 if (strncmp (m->name, name, strlen(m->name)) == 0) 625 return m; 626 627 return 0; 628 } 629 630 static char * 631 expand_macro (arg *args, int narg, macro *mac) 632 { 633 char *result = 0, *rescanned_result = 0; 634 char *e = mac->expansion; 635 char *mark = e; 636 int mac_arg = 0; 637 638 /* printf("expanding macro %s with %d args\n", mac->name, narg + 1); */ 639 while (*e) 640 { 641 if (*e == '`' && 642 (*e+1) && 643 ((*(e + 1) - '1') <= MAXARGS) && 644 ((*(e + 1) - '1') <= narg)) 645 { 646 result = str_append (result, mark, e - mark); 647 mac_arg = (*(e + 1) - '1'); 648 /* printf("replacing `%d with %s\n", mac_arg+1, args[mac_arg].start); */ 649 result = str_append (result, args[mac_arg].start, args[mac_arg].len); 650 ++e; 651 mark = e+1; 652 } 653 ++e; 654 } 655 656 if (mark != e) 657 result = str_append (result, mark, e - mark); 658 659 if (result) 660 { 661 rescanned_result = expand_string (result, 0); 662 free (result); 663 return rescanned_result; 664 } 665 else 666 return result; 667 } 668 669 #define IN_TEXT 0 670 #define IN_ARGS 1 671 672 static char * 673 expand_string (const char *in, int first_only) 674 { 675 int num_expansions = 0; 676 int depth = 0; 677 int narg = -1; 678 arg args[MAXARGS]; 679 int state = IN_TEXT; 680 const char *mark = in; 681 macro *pmacro = NULL; 682 char *expansion = 0; 683 char *result = 0; 684 685 while (*in) 686 { 687 switch (state) 688 { 689 case IN_TEXT: 690 if (*in == '%' && *(in + 1) && (!first_only || num_expansions == 0)) 691 { 692 pmacro = lookup_macro (in + 1); 693 if (pmacro) 694 { 695 /* printf("entering state %d at '%s'...\n", state, in); */ 696 result = str_append (result, mark, in - mark); 697 mark = in; 698 in += 1 + strlen (pmacro->name); 699 while (*in == ' ') ++in; 700 if (*in != '(') 701 { 702 state = IN_TEXT; 703 pmacro = NULL; 704 } 705 else 706 { 707 state = IN_ARGS; 708 narg = 0; 709 args[narg].start = in + 1; 710 args[narg].len = 0; 711 mark = in + 1; 712 } 713 } 714 } 715 break; 716 case IN_ARGS: 717 if (depth == 0) 718 { 719 switch (*in) 720 { 721 case ',': 722 narg++; 723 args[narg].start = (in + 1); 724 args[narg].len = 0; 725 break; 726 case ')': 727 state = IN_TEXT; 728 /* printf("entering state %d at '%s'...\n", state, in); */ 729 if (pmacro) 730 { 731 expansion = 0; 732 expansion = expand_macro (args, narg, pmacro); 733 num_expansions++; 734 if (expansion) 735 { 736 result = str_append (result, expansion, strlen (expansion)); 737 free (expansion); 738 } 739 } 740 else 741 { 742 result = str_append (result, mark, in - mark); 743 } 744 pmacro = NULL; 745 mark = in + 1; 746 break; 747 case '(': 748 depth++; 749 /* Fall through. */ 750 default: 751 args[narg].len++; 752 break; 753 } 754 } 755 else 756 { 757 if (*in == ')') 758 depth--; 759 if (narg > -1) 760 args[narg].len++; 761 } 762 763 } 764 ++in; 765 } 766 767 if (mark != in) 768 result = str_append (result, mark, in - mark); 769 770 return result; 771 } 772 773 #undef IN_ARGS 774 #undef IN_TEXT 775 #undef MAXARGS 776 777 778 /* END LIGHTWEIGHT MACRO PROCESSOR. */ 779 780 const char * mep_cgen_parse_operand 781 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); 782 783 const char * 784 mep_cgen_expand_macros_and_parse_operand (CGEN_CPU_DESC cd, int opindex, 785 const char ** strp_in, CGEN_FIELDS * fields) 786 { 787 const char * errmsg = NULL; 788 char *str = 0, *hold = 0; 789 const char **strp = 0; 790 791 /* Set up a new pointer to macro-expanded string. */ 792 str = expand_string (*strp_in, 1); 793 /* fprintf (stderr, " expanded <<%s>> to <<%s>>\n", *strp_in, str); */ 794 795 hold = str; 796 strp = (const char **)(&str); 797 798 errmsg = mep_cgen_parse_operand (cd, opindex, strp, fields); 799 800 /* Now work out the advance. */ 801 if (strlen (str) == 0) 802 *strp_in += strlen (*strp_in); 803 804 else 805 { 806 if (strstr (*strp_in, str)) 807 /* A macro-expansion was pulled off the front. */ 808 *strp_in = strstr (*strp_in, str); 809 else 810 /* A non-macro-expansion was pulled off the front. */ 811 *strp_in += (str - hold); 812 } 813 814 if (hold) 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 fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex); 1288 abort (); 1289 } 1290 1291 return errmsg; 1292 } 1293 1294 cgen_parse_fn * const mep_cgen_parse_handlers[] = 1295 { 1296 parse_insn_normal, 1297 }; 1298 1299 void 1300 mep_cgen_init_asm (CGEN_CPU_DESC cd) 1301 { 1302 mep_cgen_init_opcode_table (cd); 1303 mep_cgen_init_ibld_table (cd); 1304 cd->parse_handlers = & mep_cgen_parse_handlers[0]; 1305 cd->parse_operand = mep_cgen_parse_operand; 1306 #ifdef CGEN_ASM_INIT_HOOK 1307 CGEN_ASM_INIT_HOOK 1308 #endif 1309 } 1310 1311 1312 1313 /* Regex construction routine. 1314 1315 This translates an opcode syntax string into a regex string, 1316 by replacing any non-character syntax element (such as an 1317 opcode) with the pattern '.*' 1318 1319 It then compiles the regex and stores it in the opcode, for 1320 later use by mep_cgen_assemble_insn 1321 1322 Returns NULL for success, an error message for failure. */ 1323 1324 char * 1325 mep_cgen_build_insn_regex (CGEN_INSN *insn) 1326 { 1327 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); 1328 const char *mnem = CGEN_INSN_MNEMONIC (insn); 1329 char rxbuf[CGEN_MAX_RX_ELEMENTS]; 1330 char *rx = rxbuf; 1331 const CGEN_SYNTAX_CHAR_TYPE *syn; 1332 int reg_err; 1333 1334 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); 1335 1336 /* Mnemonics come first in the syntax string. */ 1337 if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) 1338 return _("missing mnemonic in syntax string"); 1339 ++syn; 1340 1341 /* Generate a case sensitive regular expression that emulates case 1342 insensitive matching in the "C" locale. We cannot generate a case 1343 insensitive regular expression because in Turkish locales, 'i' and 'I' 1344 are not equal modulo case conversion. */ 1345 1346 /* Copy the literal mnemonic out of the insn. */ 1347 for (; *mnem; mnem++) 1348 { 1349 char c = *mnem; 1350 1351 if (ISALPHA (c)) 1352 { 1353 *rx++ = '['; 1354 *rx++ = TOLOWER (c); 1355 *rx++ = TOUPPER (c); 1356 *rx++ = ']'; 1357 } 1358 else 1359 *rx++ = c; 1360 } 1361 1362 /* Copy any remaining literals from the syntax string into the rx. */ 1363 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) 1364 { 1365 if (CGEN_SYNTAX_CHAR_P (* syn)) 1366 { 1367 char c = CGEN_SYNTAX_CHAR (* syn); 1368 1369 switch (c) 1370 { 1371 /* Escape any regex metacharacters in the syntax. */ 1372 case '.': case '[': case '\\': 1373 case '*': case '^': case '$': 1374 1375 #ifdef CGEN_ESCAPE_EXTENDED_REGEX 1376 case '?': case '{': case '}': 1377 case '(': case ')': case '*': 1378 case '|': case '+': case ']': 1379 #endif 1380 *rx++ = '\\'; 1381 *rx++ = c; 1382 break; 1383 1384 default: 1385 if (ISALPHA (c)) 1386 { 1387 *rx++ = '['; 1388 *rx++ = TOLOWER (c); 1389 *rx++ = TOUPPER (c); 1390 *rx++ = ']'; 1391 } 1392 else 1393 *rx++ = c; 1394 break; 1395 } 1396 } 1397 else 1398 { 1399 /* Replace non-syntax fields with globs. */ 1400 *rx++ = '.'; 1401 *rx++ = '*'; 1402 } 1403 } 1404 1405 /* Trailing whitespace ok. */ 1406 * rx++ = '['; 1407 * rx++ = ' '; 1408 * rx++ = '\t'; 1409 * rx++ = ']'; 1410 * rx++ = '*'; 1411 1412 /* But anchor it after that. */ 1413 * rx++ = '$'; 1414 * rx = '\0'; 1415 1416 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); 1417 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); 1418 1419 if (reg_err == 0) 1420 return NULL; 1421 else 1422 { 1423 static char msg[80]; 1424 1425 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); 1426 regfree ((regex_t *) CGEN_INSN_RX (insn)); 1427 free (CGEN_INSN_RX (insn)); 1428 (CGEN_INSN_RX (insn)) = NULL; 1429 return msg; 1430 } 1431 } 1432 1433 1434 /* Default insn parser. 1435 1436 The syntax string is scanned and operands are parsed and stored in FIELDS. 1437 Relocs are queued as we go via other callbacks. 1438 1439 ??? Note that this is currently an all-or-nothing parser. If we fail to 1440 parse the instruction, we return 0 and the caller will start over from 1441 the beginning. Backtracking will be necessary in parsing subexpressions, 1442 but that can be handled there. Not handling backtracking here may get 1443 expensive in the case of the m68k. Deal with later. 1444 1445 Returns NULL for success, an error message for failure. */ 1446 1447 static const char * 1448 parse_insn_normal (CGEN_CPU_DESC cd, 1449 const CGEN_INSN *insn, 1450 const char **strp, 1451 CGEN_FIELDS *fields) 1452 { 1453 /* ??? Runtime added insns not handled yet. */ 1454 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); 1455 const char *str = *strp; 1456 const char *errmsg; 1457 const char *p; 1458 const CGEN_SYNTAX_CHAR_TYPE * syn; 1459 #ifdef CGEN_MNEMONIC_OPERANDS 1460 /* FIXME: wip */ 1461 int past_opcode_p; 1462 #endif 1463 1464 /* For now we assume the mnemonic is first (there are no leading operands). 1465 We can parse it without needing to set up operand parsing. 1466 GAS's input scrubber will ensure mnemonics are lowercase, but we may 1467 not be called from GAS. */ 1468 p = CGEN_INSN_MNEMONIC (insn); 1469 while (*p && TOLOWER (*p) == TOLOWER (*str)) 1470 ++p, ++str; 1471 1472 if (* p) 1473 return _("unrecognized instruction"); 1474 1475 #ifndef CGEN_MNEMONIC_OPERANDS 1476 if (* str && ! ISSPACE (* str)) 1477 return _("unrecognized instruction"); 1478 #endif 1479 1480 CGEN_INIT_PARSE (cd); 1481 cgen_init_parse_operand (cd); 1482 #ifdef CGEN_MNEMONIC_OPERANDS 1483 past_opcode_p = 0; 1484 #endif 1485 1486 /* We don't check for (*str != '\0') here because we want to parse 1487 any trailing fake arguments in the syntax string. */ 1488 syn = CGEN_SYNTAX_STRING (syntax); 1489 1490 /* Mnemonics come first for now, ensure valid string. */ 1491 if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) 1492 abort (); 1493 1494 ++syn; 1495 1496 while (* syn != 0) 1497 { 1498 /* Non operand chars must match exactly. */ 1499 if (CGEN_SYNTAX_CHAR_P (* syn)) 1500 { 1501 /* FIXME: While we allow for non-GAS callers above, we assume the 1502 first char after the mnemonic part is a space. */ 1503 /* FIXME: We also take inappropriate advantage of the fact that 1504 GAS's input scrubber will remove extraneous blanks. */ 1505 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn))) 1506 { 1507 #ifdef CGEN_MNEMONIC_OPERANDS 1508 if (CGEN_SYNTAX_CHAR(* syn) == ' ') 1509 past_opcode_p = 1; 1510 #endif 1511 ++ syn; 1512 ++ str; 1513 } 1514 else if (*str) 1515 { 1516 /* Syntax char didn't match. Can't be this insn. */ 1517 static char msg [80]; 1518 1519 /* xgettext:c-format */ 1520 sprintf (msg, _("syntax error (expected char `%c', found `%c')"), 1521 CGEN_SYNTAX_CHAR(*syn), *str); 1522 return msg; 1523 } 1524 else 1525 { 1526 /* Ran out of input. */ 1527 static char msg [80]; 1528 1529 /* xgettext:c-format */ 1530 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), 1531 CGEN_SYNTAX_CHAR(*syn)); 1532 return msg; 1533 } 1534 continue; 1535 } 1536 1537 #ifdef CGEN_MNEMONIC_OPERANDS 1538 (void) past_opcode_p; 1539 #endif 1540 /* We have an operand of some sort. */ 1541 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields); 1542 if (errmsg) 1543 return errmsg; 1544 1545 /* Done with this operand, continue with next one. */ 1546 ++ syn; 1547 } 1548 1549 /* If we're at the end of the syntax string, we're done. */ 1550 if (* syn == 0) 1551 { 1552 /* FIXME: For the moment we assume a valid `str' can only contain 1553 blanks now. IE: We needn't try again with a longer version of 1554 the insn and it is assumed that longer versions of insns appear 1555 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ 1556 while (ISSPACE (* str)) 1557 ++ str; 1558 1559 if (* str != '\0') 1560 return _("junk at end of line"); /* FIXME: would like to include `str' */ 1561 1562 return NULL; 1563 } 1564 1565 /* We couldn't parse it. */ 1566 return _("unrecognized instruction"); 1567 } 1568 1569 /* Main entry point. 1570 This routine is called for each instruction to be assembled. 1571 STR points to the insn to be assembled. 1572 We assume all necessary tables have been initialized. 1573 The assembled instruction, less any fixups, is stored in BUF. 1574 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value 1575 still needs to be converted to target byte order, otherwise BUF is an array 1576 of bytes in target byte order. 1577 The result is a pointer to the insn's entry in the opcode table, 1578 or NULL if an error occured (an error message will have already been 1579 printed). 1580 1581 Note that when processing (non-alias) macro-insns, 1582 this function recurses. 1583 1584 ??? It's possible to make this cpu-independent. 1585 One would have to deal with a few minor things. 1586 At this point in time doing so would be more of a curiosity than useful 1587 [for example this file isn't _that_ big], but keeping the possibility in 1588 mind helps keep the design clean. */ 1589 1590 const CGEN_INSN * 1591 mep_cgen_assemble_insn (CGEN_CPU_DESC cd, 1592 const char *str, 1593 CGEN_FIELDS *fields, 1594 CGEN_INSN_BYTES_PTR buf, 1595 char **errmsg) 1596 { 1597 const char *start; 1598 CGEN_INSN_LIST *ilist; 1599 const char *parse_errmsg = NULL; 1600 const char *insert_errmsg = NULL; 1601 int recognized_mnemonic = 0; 1602 1603 /* Skip leading white space. */ 1604 while (ISSPACE (* str)) 1605 ++ str; 1606 1607 /* The instructions are stored in hashed lists. 1608 Get the first in the list. */ 1609 ilist = CGEN_ASM_LOOKUP_INSN (cd, str); 1610 1611 /* Keep looking until we find a match. */ 1612 start = str; 1613 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) 1614 { 1615 const CGEN_INSN *insn = ilist->insn; 1616 recognized_mnemonic = 1; 1617 1618 #ifdef CGEN_VALIDATE_INSN_SUPPORTED 1619 /* Not usually needed as unsupported opcodes 1620 shouldn't be in the hash lists. */ 1621 /* Is this insn supported by the selected cpu? */ 1622 if (! mep_cgen_insn_supported (cd, insn)) 1623 continue; 1624 #endif 1625 /* If the RELAXED attribute is set, this is an insn that shouldn't be 1626 chosen immediately. Instead, it is used during assembler/linker 1627 relaxation if possible. */ 1628 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) 1629 continue; 1630 1631 str = start; 1632 1633 /* Skip this insn if str doesn't look right lexically. */ 1634 if (CGEN_INSN_RX (insn) != NULL && 1635 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) 1636 continue; 1637 1638 /* Allow parse/insert handlers to obtain length of insn. */ 1639 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); 1640 1641 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); 1642 if (parse_errmsg != NULL) 1643 continue; 1644 1645 /* ??? 0 is passed for `pc'. */ 1646 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, 1647 (bfd_vma) 0); 1648 if (insert_errmsg != NULL) 1649 continue; 1650 1651 /* It is up to the caller to actually output the insn and any 1652 queued relocs. */ 1653 return insn; 1654 } 1655 1656 { 1657 static char errbuf[150]; 1658 const char *tmp_errmsg; 1659 #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS 1660 #define be_verbose 1 1661 #else 1662 #define be_verbose 0 1663 #endif 1664 1665 if (be_verbose) 1666 { 1667 /* If requesting verbose error messages, use insert_errmsg. 1668 Failing that, use parse_errmsg. */ 1669 tmp_errmsg = (insert_errmsg ? insert_errmsg : 1670 parse_errmsg ? parse_errmsg : 1671 recognized_mnemonic ? 1672 _("unrecognized form of instruction") : 1673 _("unrecognized instruction")); 1674 1675 if (strlen (start) > 50) 1676 /* xgettext:c-format */ 1677 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); 1678 else 1679 /* xgettext:c-format */ 1680 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); 1681 } 1682 else 1683 { 1684 if (strlen (start) > 50) 1685 /* xgettext:c-format */ 1686 sprintf (errbuf, _("bad instruction `%.50s...'"), start); 1687 else 1688 /* xgettext:c-format */ 1689 sprintf (errbuf, _("bad instruction `%.50s'"), start); 1690 } 1691 1692 *errmsg = errbuf; 1693 return NULL; 1694 } 1695 } 1696