1/* Assembler interface for targets using CGEN. -*- C -*- 2 CGEN: Cpu tools GENerator 3 4 THIS FILE IS MACHINE GENERATED WITH CGEN. 5 - the resultant file is machine generated, cgen-asm.in isn't 6 7 Copyright (C) 1996-2017 Free Software Foundation, Inc. 8 9 This file is part of libopcodes. 10 11 This library is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 3, or (at your option) 14 any later version. 15 16 It is distributed in the hope that it will be useful, but WITHOUT 17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 18 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 19 License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software Foundation, Inc., 23 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 24 25 26/* ??? Eventually more and more of this stuff can go to cpu-independent files. 27 Keep that in mind. */ 28 29#include "sysdep.h" 30#include <stdio.h> 31#include "ansidecl.h" 32#include "bfd.h" 33#include "symcat.h" 34#include "xstormy16-desc.h" 35#include "xstormy16-opc.h" 36#include "opintl.h" 37#include "xregex.h" 38#include "libiberty.h" 39#include "safe-ctype.h" 40 41#undef min 42#define min(a,b) ((a) < (b) ? (a) : (b)) 43#undef max 44#define max(a,b) ((a) > (b) ? (a) : (b)) 45 46static const char * parse_insn_normal 47 (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *); 48 49/* -- assembler routines inserted here. */ 50 51/* -- asm.c */ 52 53/* The machine-independent code doesn't know how to disambiguate 54 mov (foo),r3 55 and 56 mov (r2),r3 57 where 'foo' is a label. This helps it out. */ 58 59static const char * 60parse_mem8 (CGEN_CPU_DESC cd, 61 const char **strp, 62 int opindex, 63 unsigned long *valuep) 64{ 65 if (**strp == '(') 66 { 67 const char *s = *strp; 68 69 if (s[1] == '-' && s[2] == '-') 70 return _("Bad register in preincrement"); 71 72 while (ISALNUM (*++s)) 73 ; 74 if (s[0] == '+' && s[1] == '+' && (s[2] == ')' || s[2] == ',')) 75 return _("Bad register in postincrement"); 76 if (s[0] == ',' || s[0] == ')') 77 return _("Bad register name"); 78 } 79 else if (cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, 80 (long *) valuep) == NULL) 81 return _("Label conflicts with register name"); 82 else if (strncasecmp (*strp, "rx,", 3) == 0 83 || strncasecmp (*strp, "rxl,", 3) == 0 84 || strncasecmp (*strp, "rxh,", 3) == 0) 85 return _("Label conflicts with `Rx'"); 86 else if (**strp == '#') 87 return _("Bad immediate expression"); 88 89 return cgen_parse_unsigned_integer (cd, strp, opindex, valuep); 90} 91 92/* For the add and subtract instructions, there are two immediate forms, 93 one for small operands and one for large ones. We want to use 94 the small one when possible, but we do not want to generate relocs 95 of the small size. This is somewhat tricky. */ 96 97static const char * 98parse_small_immediate (CGEN_CPU_DESC cd, 99 const char **strp, 100 int opindex, 101 unsigned long *valuep) 102{ 103 bfd_vma value; 104 enum cgen_parse_operand_result result; 105 const char *errmsg; 106 107 if (**strp == '@') 108 return _("No relocation for small immediate"); 109 110 errmsg = (* cd->parse_operand_fn) 111 (cd, CGEN_PARSE_OPERAND_INTEGER, strp, opindex, BFD_RELOC_NONE, 112 & result, & value); 113 114 if (errmsg) 115 return errmsg; 116 117 if (result != CGEN_PARSE_OPERAND_RESULT_NUMBER) 118 return _("Small operand was not an immediate number"); 119 120 *valuep = value; 121 return NULL; 122} 123 124/* Literal scan be either a normal literal, a @hi() or @lo relocation. */ 125 126static const char * 127parse_immediate16 (CGEN_CPU_DESC cd, 128 const char **strp, 129 int opindex, 130 unsigned long *valuep) 131{ 132 const char *errmsg; 133 enum cgen_parse_operand_result result; 134 bfd_reloc_code_real_type code = BFD_RELOC_NONE; 135 bfd_vma value; 136 137 if (strncmp (*strp, "@hi(", 4) == 0) 138 { 139 *strp += 4; 140 code = BFD_RELOC_HI16; 141 } 142 else 143 if (strncmp (*strp, "@lo(", 4) == 0) 144 { 145 *strp += 4; 146 code = BFD_RELOC_LO16; 147 } 148 149 if (code == BFD_RELOC_NONE) 150 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep); 151 else 152 { 153 errmsg = cgen_parse_address (cd, strp, opindex, code, &result, &value); 154 if ((errmsg == NULL) && 155 (result != CGEN_PARSE_OPERAND_RESULT_QUEUED)) 156 errmsg = _("Operand is not a symbol"); 157 158 *valuep = value; 159 if ((code == BFD_RELOC_HI16 || code == BFD_RELOC_LO16) 160 && **strp == ')') 161 *strp += 1; 162 else 163 { 164 errmsg = _("Syntax error: No trailing ')'"); 165 return errmsg; 166 } 167 } 168 return errmsg; 169} 170/* -- */ 171 172const char * xstormy16_cgen_parse_operand 173 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); 174 175/* Main entry point for operand parsing. 176 177 This function is basically just a big switch statement. Earlier versions 178 used tables to look up the function to use, but 179 - if the table contains both assembler and disassembler functions then 180 the disassembler contains much of the assembler and vice-versa, 181 - there's a lot of inlining possibilities as things grow, 182 - using a switch statement avoids the function call overhead. 183 184 This function could be moved into `parse_insn_normal', but keeping it 185 separate makes clear the interface between `parse_insn_normal' and each of 186 the handlers. */ 187 188const char * 189xstormy16_cgen_parse_operand (CGEN_CPU_DESC cd, 190 int opindex, 191 const char ** strp, 192 CGEN_FIELDS * fields) 193{ 194 const char * errmsg = NULL; 195 /* Used by scalar operands that still need to be parsed. */ 196 long junk ATTRIBUTE_UNUSED; 197 198 switch (opindex) 199 { 200 case XSTORMY16_OPERAND_RB : 201 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_Rb_names, & fields->f_Rb); 202 break; 203 case XSTORMY16_OPERAND_RBJ : 204 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_Rb_names, & fields->f_Rbj); 205 break; 206 case XSTORMY16_OPERAND_RD : 207 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, & fields->f_Rd); 208 break; 209 case XSTORMY16_OPERAND_RDM : 210 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, & fields->f_Rdm); 211 break; 212 case XSTORMY16_OPERAND_RM : 213 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, & fields->f_Rm); 214 break; 215 case XSTORMY16_OPERAND_RS : 216 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, & fields->f_Rs); 217 break; 218 case XSTORMY16_OPERAND_ABS24 : 219 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_ABS24, (unsigned long *) (& fields->f_abs24)); 220 break; 221 case XSTORMY16_OPERAND_BCOND2 : 222 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_h_branchcond, & fields->f_op2); 223 break; 224 case XSTORMY16_OPERAND_BCOND5 : 225 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_h_branchcond, & fields->f_op5); 226 break; 227 case XSTORMY16_OPERAND_HMEM8 : 228 errmsg = parse_mem8 (cd, strp, XSTORMY16_OPERAND_HMEM8, (unsigned long *) (& fields->f_hmem8)); 229 break; 230 case XSTORMY16_OPERAND_IMM12 : 231 errmsg = cgen_parse_signed_integer (cd, strp, XSTORMY16_OPERAND_IMM12, (long *) (& fields->f_imm12)); 232 break; 233 case XSTORMY16_OPERAND_IMM16 : 234 errmsg = parse_immediate16 (cd, strp, XSTORMY16_OPERAND_IMM16, (unsigned long *) (& fields->f_imm16)); 235 break; 236 case XSTORMY16_OPERAND_IMM2 : 237 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_IMM2, (unsigned long *) (& fields->f_imm2)); 238 break; 239 case XSTORMY16_OPERAND_IMM3 : 240 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_IMM3, (unsigned long *) (& fields->f_imm3)); 241 break; 242 case XSTORMY16_OPERAND_IMM3B : 243 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_IMM3B, (unsigned long *) (& fields->f_imm3b)); 244 break; 245 case XSTORMY16_OPERAND_IMM4 : 246 errmsg = parse_small_immediate (cd, strp, XSTORMY16_OPERAND_IMM4, (unsigned long *) (& fields->f_imm4)); 247 break; 248 case XSTORMY16_OPERAND_IMM8 : 249 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_IMM8, (unsigned long *) (& fields->f_imm8)); 250 break; 251 case XSTORMY16_OPERAND_IMM8SMALL : 252 errmsg = parse_small_immediate (cd, strp, XSTORMY16_OPERAND_IMM8SMALL, (unsigned long *) (& fields->f_imm8)); 253 break; 254 case XSTORMY16_OPERAND_LMEM8 : 255 errmsg = parse_mem8 (cd, strp, XSTORMY16_OPERAND_LMEM8, (unsigned long *) (& fields->f_lmem8)); 256 break; 257 case XSTORMY16_OPERAND_REL12 : 258 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_REL12, (unsigned long *) (& fields->f_rel12)); 259 break; 260 case XSTORMY16_OPERAND_REL12A : 261 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_REL12A, (unsigned long *) (& fields->f_rel12a)); 262 break; 263 case XSTORMY16_OPERAND_REL8_2 : 264 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_REL8_2, (unsigned long *) (& fields->f_rel8_2)); 265 break; 266 case XSTORMY16_OPERAND_REL8_4 : 267 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_REL8_4, (unsigned long *) (& fields->f_rel8_4)); 268 break; 269 case XSTORMY16_OPERAND_WS2 : 270 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_h_wordsize, & fields->f_op2m); 271 break; 272 273 default : 274 /* xgettext:c-format */ 275 fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex); 276 abort (); 277 } 278 279 return errmsg; 280} 281 282cgen_parse_fn * const xstormy16_cgen_parse_handlers[] = 283{ 284 parse_insn_normal, 285}; 286 287void 288xstormy16_cgen_init_asm (CGEN_CPU_DESC cd) 289{ 290 xstormy16_cgen_init_opcode_table (cd); 291 xstormy16_cgen_init_ibld_table (cd); 292 cd->parse_handlers = & xstormy16_cgen_parse_handlers[0]; 293 cd->parse_operand = xstormy16_cgen_parse_operand; 294#ifdef CGEN_ASM_INIT_HOOK 295CGEN_ASM_INIT_HOOK 296#endif 297} 298 299 300 301/* Regex construction routine. 302 303 This translates an opcode syntax string into a regex string, 304 by replacing any non-character syntax element (such as an 305 opcode) with the pattern '.*' 306 307 It then compiles the regex and stores it in the opcode, for 308 later use by xstormy16_cgen_assemble_insn 309 310 Returns NULL for success, an error message for failure. */ 311 312char * 313xstormy16_cgen_build_insn_regex (CGEN_INSN *insn) 314{ 315 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); 316 const char *mnem = CGEN_INSN_MNEMONIC (insn); 317 char rxbuf[CGEN_MAX_RX_ELEMENTS]; 318 char *rx = rxbuf; 319 const CGEN_SYNTAX_CHAR_TYPE *syn; 320 int reg_err; 321 322 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); 323 324 /* Mnemonics come first in the syntax string. */ 325 if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) 326 return _("missing mnemonic in syntax string"); 327 ++syn; 328 329 /* Generate a case sensitive regular expression that emulates case 330 insensitive matching in the "C" locale. We cannot generate a case 331 insensitive regular expression because in Turkish locales, 'i' and 'I' 332 are not equal modulo case conversion. */ 333 334 /* Copy the literal mnemonic out of the insn. */ 335 for (; *mnem; mnem++) 336 { 337 char c = *mnem; 338 339 if (ISALPHA (c)) 340 { 341 *rx++ = '['; 342 *rx++ = TOLOWER (c); 343 *rx++ = TOUPPER (c); 344 *rx++ = ']'; 345 } 346 else 347 *rx++ = c; 348 } 349 350 /* Copy any remaining literals from the syntax string into the rx. */ 351 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) 352 { 353 if (CGEN_SYNTAX_CHAR_P (* syn)) 354 { 355 char c = CGEN_SYNTAX_CHAR (* syn); 356 357 switch (c) 358 { 359 /* Escape any regex metacharacters in the syntax. */ 360 case '.': case '[': case '\\': 361 case '*': case '^': case '$': 362 363#ifdef CGEN_ESCAPE_EXTENDED_REGEX 364 case '?': case '{': case '}': 365 case '(': case ')': case '*': 366 case '|': case '+': case ']': 367#endif 368 *rx++ = '\\'; 369 *rx++ = c; 370 break; 371 372 default: 373 if (ISALPHA (c)) 374 { 375 *rx++ = '['; 376 *rx++ = TOLOWER (c); 377 *rx++ = TOUPPER (c); 378 *rx++ = ']'; 379 } 380 else 381 *rx++ = c; 382 break; 383 } 384 } 385 else 386 { 387 /* Replace non-syntax fields with globs. */ 388 *rx++ = '.'; 389 *rx++ = '*'; 390 } 391 } 392 393 /* Trailing whitespace ok. */ 394 * rx++ = '['; 395 * rx++ = ' '; 396 * rx++ = '\t'; 397 * rx++ = ']'; 398 * rx++ = '*'; 399 400 /* But anchor it after that. */ 401 * rx++ = '$'; 402 * rx = '\0'; 403 404 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); 405 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); 406 407 if (reg_err == 0) 408 return NULL; 409 else 410 { 411 static char msg[80]; 412 413 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); 414 regfree ((regex_t *) CGEN_INSN_RX (insn)); 415 free (CGEN_INSN_RX (insn)); 416 (CGEN_INSN_RX (insn)) = NULL; 417 return msg; 418 } 419} 420 421 422/* Default insn parser. 423 424 The syntax string is scanned and operands are parsed and stored in FIELDS. 425 Relocs are queued as we go via other callbacks. 426 427 ??? Note that this is currently an all-or-nothing parser. If we fail to 428 parse the instruction, we return 0 and the caller will start over from 429 the beginning. Backtracking will be necessary in parsing subexpressions, 430 but that can be handled there. Not handling backtracking here may get 431 expensive in the case of the m68k. Deal with later. 432 433 Returns NULL for success, an error message for failure. */ 434 435static const char * 436parse_insn_normal (CGEN_CPU_DESC cd, 437 const CGEN_INSN *insn, 438 const char **strp, 439 CGEN_FIELDS *fields) 440{ 441 /* ??? Runtime added insns not handled yet. */ 442 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); 443 const char *str = *strp; 444 const char *errmsg; 445 const char *p; 446 const CGEN_SYNTAX_CHAR_TYPE * syn; 447#ifdef CGEN_MNEMONIC_OPERANDS 448 /* FIXME: wip */ 449 int past_opcode_p; 450#endif 451 452 /* For now we assume the mnemonic is first (there are no leading operands). 453 We can parse it without needing to set up operand parsing. 454 GAS's input scrubber will ensure mnemonics are lowercase, but we may 455 not be called from GAS. */ 456 p = CGEN_INSN_MNEMONIC (insn); 457 while (*p && TOLOWER (*p) == TOLOWER (*str)) 458 ++p, ++str; 459 460 if (* p) 461 return _("unrecognized instruction"); 462 463#ifndef CGEN_MNEMONIC_OPERANDS 464 if (* str && ! ISSPACE (* str)) 465 return _("unrecognized instruction"); 466#endif 467 468 CGEN_INIT_PARSE (cd); 469 cgen_init_parse_operand (cd); 470#ifdef CGEN_MNEMONIC_OPERANDS 471 past_opcode_p = 0; 472#endif 473 474 /* We don't check for (*str != '\0') here because we want to parse 475 any trailing fake arguments in the syntax string. */ 476 syn = CGEN_SYNTAX_STRING (syntax); 477 478 /* Mnemonics come first for now, ensure valid string. */ 479 if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) 480 abort (); 481 482 ++syn; 483 484 while (* syn != 0) 485 { 486 /* Non operand chars must match exactly. */ 487 if (CGEN_SYNTAX_CHAR_P (* syn)) 488 { 489 /* FIXME: While we allow for non-GAS callers above, we assume the 490 first char after the mnemonic part is a space. */ 491 /* FIXME: We also take inappropriate advantage of the fact that 492 GAS's input scrubber will remove extraneous blanks. */ 493 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn))) 494 { 495#ifdef CGEN_MNEMONIC_OPERANDS 496 if (CGEN_SYNTAX_CHAR(* syn) == ' ') 497 past_opcode_p = 1; 498#endif 499 ++ syn; 500 ++ str; 501 } 502 else if (*str) 503 { 504 /* Syntax char didn't match. Can't be this insn. */ 505 static char msg [80]; 506 507 /* xgettext:c-format */ 508 sprintf (msg, _("syntax error (expected char `%c', found `%c')"), 509 CGEN_SYNTAX_CHAR(*syn), *str); 510 return msg; 511 } 512 else 513 { 514 /* Ran out of input. */ 515 static char msg [80]; 516 517 /* xgettext:c-format */ 518 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), 519 CGEN_SYNTAX_CHAR(*syn)); 520 return msg; 521 } 522 continue; 523 } 524 525#ifdef CGEN_MNEMONIC_OPERANDS 526 (void) past_opcode_p; 527#endif 528 /* We have an operand of some sort. */ 529 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields); 530 if (errmsg) 531 return errmsg; 532 533 /* Done with this operand, continue with next one. */ 534 ++ syn; 535 } 536 537 /* If we're at the end of the syntax string, we're done. */ 538 if (* syn == 0) 539 { 540 /* FIXME: For the moment we assume a valid `str' can only contain 541 blanks now. IE: We needn't try again with a longer version of 542 the insn and it is assumed that longer versions of insns appear 543 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ 544 while (ISSPACE (* str)) 545 ++ str; 546 547 if (* str != '\0') 548 return _("junk at end of line"); /* FIXME: would like to include `str' */ 549 550 return NULL; 551 } 552 553 /* We couldn't parse it. */ 554 return _("unrecognized instruction"); 555} 556 557/* Main entry point. 558 This routine is called for each instruction to be assembled. 559 STR points to the insn to be assembled. 560 We assume all necessary tables have been initialized. 561 The assembled instruction, less any fixups, is stored in BUF. 562 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value 563 still needs to be converted to target byte order, otherwise BUF is an array 564 of bytes in target byte order. 565 The result is a pointer to the insn's entry in the opcode table, 566 or NULL if an error occured (an error message will have already been 567 printed). 568 569 Note that when processing (non-alias) macro-insns, 570 this function recurses. 571 572 ??? It's possible to make this cpu-independent. 573 One would have to deal with a few minor things. 574 At this point in time doing so would be more of a curiosity than useful 575 [for example this file isn't _that_ big], but keeping the possibility in 576 mind helps keep the design clean. */ 577 578const CGEN_INSN * 579xstormy16_cgen_assemble_insn (CGEN_CPU_DESC cd, 580 const char *str, 581 CGEN_FIELDS *fields, 582 CGEN_INSN_BYTES_PTR buf, 583 char **errmsg) 584{ 585 const char *start; 586 CGEN_INSN_LIST *ilist; 587 const char *parse_errmsg = NULL; 588 const char *insert_errmsg = NULL; 589 int recognized_mnemonic = 0; 590 591 /* Skip leading white space. */ 592 while (ISSPACE (* str)) 593 ++ str; 594 595 /* The instructions are stored in hashed lists. 596 Get the first in the list. */ 597 ilist = CGEN_ASM_LOOKUP_INSN (cd, str); 598 599 /* Keep looking until we find a match. */ 600 start = str; 601 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) 602 { 603 const CGEN_INSN *insn = ilist->insn; 604 recognized_mnemonic = 1; 605 606#ifdef CGEN_VALIDATE_INSN_SUPPORTED 607 /* Not usually needed as unsupported opcodes 608 shouldn't be in the hash lists. */ 609 /* Is this insn supported by the selected cpu? */ 610 if (! xstormy16_cgen_insn_supported (cd, insn)) 611 continue; 612#endif 613 /* If the RELAXED attribute is set, this is an insn that shouldn't be 614 chosen immediately. Instead, it is used during assembler/linker 615 relaxation if possible. */ 616 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) 617 continue; 618 619 str = start; 620 621 /* Skip this insn if str doesn't look right lexically. */ 622 if (CGEN_INSN_RX (insn) != NULL && 623 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) 624 continue; 625 626 /* Allow parse/insert handlers to obtain length of insn. */ 627 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); 628 629 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); 630 if (parse_errmsg != NULL) 631 continue; 632 633 /* ??? 0 is passed for `pc'. */ 634 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, 635 (bfd_vma) 0); 636 if (insert_errmsg != NULL) 637 continue; 638 639 /* It is up to the caller to actually output the insn and any 640 queued relocs. */ 641 return insn; 642 } 643 644 { 645 static char errbuf[150]; 646 const char *tmp_errmsg; 647#ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS 648#define be_verbose 1 649#else 650#define be_verbose 0 651#endif 652 653 if (be_verbose) 654 { 655 /* If requesting verbose error messages, use insert_errmsg. 656 Failing that, use parse_errmsg. */ 657 tmp_errmsg = (insert_errmsg ? insert_errmsg : 658 parse_errmsg ? parse_errmsg : 659 recognized_mnemonic ? 660 _("unrecognized form of instruction") : 661 _("unrecognized instruction")); 662 663 if (strlen (start) > 50) 664 /* xgettext:c-format */ 665 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); 666 else 667 /* xgettext:c-format */ 668 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); 669 } 670 else 671 { 672 if (strlen (start) > 50) 673 /* xgettext:c-format */ 674 sprintf (errbuf, _("bad instruction `%.50s...'"), start); 675 else 676 /* xgettext:c-format */ 677 sprintf (errbuf, _("bad instruction `%.50s'"), start); 678 } 679 680 *errmsg = errbuf; 681 return NULL; 682 } 683} 684