1/* Assembler interface for targets using CGEN. -*- C -*- 2 CGEN: Cpu tools GENerator 3 4 THIS FILE IS MACHINE GENERATED WITH CGEN. 5 - the resultant file is machine generated, cgen-asm.in isn't 6 7 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005 8 Free Software Foundation, Inc. 9 10 This file is part of the GNU Binutils and GDB, the GNU debugger. 11 12 This program 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 2, or (at your option) 15 any later version. 16 17 This program is distributed in the hope that it will be useful, 18 but WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 GNU General Public 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/* ??? 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} 295 296 297 298/* Regex construction routine. 299 300 This translates an opcode syntax string into a regex string, 301 by replacing any non-character syntax element (such as an 302 opcode) with the pattern '.*' 303 304 It then compiles the regex and stores it in the opcode, for 305 later use by xstormy16_cgen_assemble_insn 306 307 Returns NULL for success, an error message for failure. */ 308 309char * 310xstormy16_cgen_build_insn_regex (CGEN_INSN *insn) 311{ 312 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); 313 const char *mnem = CGEN_INSN_MNEMONIC (insn); 314 char rxbuf[CGEN_MAX_RX_ELEMENTS]; 315 char *rx = rxbuf; 316 const CGEN_SYNTAX_CHAR_TYPE *syn; 317 int reg_err; 318 319 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); 320 321 /* Mnemonics come first in the syntax string. */ 322 if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) 323 return _("missing mnemonic in syntax string"); 324 ++syn; 325 326 /* Generate a case sensitive regular expression that emulates case 327 insensitive matching in the "C" locale. We cannot generate a case 328 insensitive regular expression because in Turkish locales, 'i' and 'I' 329 are not equal modulo case conversion. */ 330 331 /* Copy the literal mnemonic out of the insn. */ 332 for (; *mnem; mnem++) 333 { 334 char c = *mnem; 335 336 if (ISALPHA (c)) 337 { 338 *rx++ = '['; 339 *rx++ = TOLOWER (c); 340 *rx++ = TOUPPER (c); 341 *rx++ = ']'; 342 } 343 else 344 *rx++ = c; 345 } 346 347 /* Copy any remaining literals from the syntax string into the rx. */ 348 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) 349 { 350 if (CGEN_SYNTAX_CHAR_P (* syn)) 351 { 352 char c = CGEN_SYNTAX_CHAR (* syn); 353 354 switch (c) 355 { 356 /* Escape any regex metacharacters in the syntax. */ 357 case '.': case '[': case '\\': 358 case '*': case '^': case '$': 359 360#ifdef CGEN_ESCAPE_EXTENDED_REGEX 361 case '?': case '{': case '}': 362 case '(': case ')': case '*': 363 case '|': case '+': case ']': 364#endif 365 *rx++ = '\\'; 366 *rx++ = c; 367 break; 368 369 default: 370 if (ISALPHA (c)) 371 { 372 *rx++ = '['; 373 *rx++ = TOLOWER (c); 374 *rx++ = TOUPPER (c); 375 *rx++ = ']'; 376 } 377 else 378 *rx++ = c; 379 break; 380 } 381 } 382 else 383 { 384 /* Replace non-syntax fields with globs. */ 385 *rx++ = '.'; 386 *rx++ = '*'; 387 } 388 } 389 390 /* Trailing whitespace ok. */ 391 * rx++ = '['; 392 * rx++ = ' '; 393 * rx++ = '\t'; 394 * rx++ = ']'; 395 * rx++ = '*'; 396 397 /* But anchor it after that. */ 398 * rx++ = '$'; 399 * rx = '\0'; 400 401 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); 402 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); 403 404 if (reg_err == 0) 405 return NULL; 406 else 407 { 408 static char msg[80]; 409 410 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); 411 regfree ((regex_t *) CGEN_INSN_RX (insn)); 412 free (CGEN_INSN_RX (insn)); 413 (CGEN_INSN_RX (insn)) = NULL; 414 return msg; 415 } 416} 417 418 419/* Default insn parser. 420 421 The syntax string is scanned and operands are parsed and stored in FIELDS. 422 Relocs are queued as we go via other callbacks. 423 424 ??? Note that this is currently an all-or-nothing parser. If we fail to 425 parse the instruction, we return 0 and the caller will start over from 426 the beginning. Backtracking will be necessary in parsing subexpressions, 427 but that can be handled there. Not handling backtracking here may get 428 expensive in the case of the m68k. Deal with later. 429 430 Returns NULL for success, an error message for failure. */ 431 432static const char * 433parse_insn_normal (CGEN_CPU_DESC cd, 434 const CGEN_INSN *insn, 435 const char **strp, 436 CGEN_FIELDS *fields) 437{ 438 /* ??? Runtime added insns not handled yet. */ 439 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); 440 const char *str = *strp; 441 const char *errmsg; 442 const char *p; 443 const CGEN_SYNTAX_CHAR_TYPE * syn; 444#ifdef CGEN_MNEMONIC_OPERANDS 445 /* FIXME: wip */ 446 int past_opcode_p; 447#endif 448 449 /* For now we assume the mnemonic is first (there are no leading operands). 450 We can parse it without needing to set up operand parsing. 451 GAS's input scrubber will ensure mnemonics are lowercase, but we may 452 not be called from GAS. */ 453 p = CGEN_INSN_MNEMONIC (insn); 454 while (*p && TOLOWER (*p) == TOLOWER (*str)) 455 ++p, ++str; 456 457 if (* p) 458 return _("unrecognized instruction"); 459 460#ifndef CGEN_MNEMONIC_OPERANDS 461 if (* str && ! ISSPACE (* str)) 462 return _("unrecognized instruction"); 463#endif 464 465 CGEN_INIT_PARSE (cd); 466 cgen_init_parse_operand (cd); 467#ifdef CGEN_MNEMONIC_OPERANDS 468 past_opcode_p = 0; 469#endif 470 471 /* We don't check for (*str != '\0') here because we want to parse 472 any trailing fake arguments in the syntax string. */ 473 syn = CGEN_SYNTAX_STRING (syntax); 474 475 /* Mnemonics come first for now, ensure valid string. */ 476 if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) 477 abort (); 478 479 ++syn; 480 481 while (* syn != 0) 482 { 483 /* Non operand chars must match exactly. */ 484 if (CGEN_SYNTAX_CHAR_P (* syn)) 485 { 486 /* FIXME: While we allow for non-GAS callers above, we assume the 487 first char after the mnemonic part is a space. */ 488 /* FIXME: We also take inappropriate advantage of the fact that 489 GAS's input scrubber will remove extraneous blanks. */ 490 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn))) 491 { 492#ifdef CGEN_MNEMONIC_OPERANDS 493 if (CGEN_SYNTAX_CHAR(* syn) == ' ') 494 past_opcode_p = 1; 495#endif 496 ++ syn; 497 ++ str; 498 } 499 else if (*str) 500 { 501 /* Syntax char didn't match. Can't be this insn. */ 502 static char msg [80]; 503 504 /* xgettext:c-format */ 505 sprintf (msg, _("syntax error (expected char `%c', found `%c')"), 506 CGEN_SYNTAX_CHAR(*syn), *str); 507 return msg; 508 } 509 else 510 { 511 /* Ran out of input. */ 512 static char msg [80]; 513 514 /* xgettext:c-format */ 515 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), 516 CGEN_SYNTAX_CHAR(*syn)); 517 return msg; 518 } 519 continue; 520 } 521 522 /* We have an operand of some sort. */ 523 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), 524 &str, fields); 525 if (errmsg) 526 return errmsg; 527 528 /* Done with this operand, continue with next one. */ 529 ++ syn; 530 } 531 532 /* If we're at the end of the syntax string, we're done. */ 533 if (* syn == 0) 534 { 535 /* FIXME: For the moment we assume a valid `str' can only contain 536 blanks now. IE: We needn't try again with a longer version of 537 the insn and it is assumed that longer versions of insns appear 538 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ 539 while (ISSPACE (* str)) 540 ++ str; 541 542 if (* str != '\0') 543 return _("junk at end of line"); /* FIXME: would like to include `str' */ 544 545 return NULL; 546 } 547 548 /* We couldn't parse it. */ 549 return _("unrecognized instruction"); 550} 551 552/* Main entry point. 553 This routine is called for each instruction to be assembled. 554 STR points to the insn to be assembled. 555 We assume all necessary tables have been initialized. 556 The assembled instruction, less any fixups, is stored in BUF. 557 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value 558 still needs to be converted to target byte order, otherwise BUF is an array 559 of bytes in target byte order. 560 The result is a pointer to the insn's entry in the opcode table, 561 or NULL if an error occured (an error message will have already been 562 printed). 563 564 Note that when processing (non-alias) macro-insns, 565 this function recurses. 566 567 ??? It's possible to make this cpu-independent. 568 One would have to deal with a few minor things. 569 At this point in time doing so would be more of a curiosity than useful 570 [for example this file isn't _that_ big], but keeping the possibility in 571 mind helps keep the design clean. */ 572 573const CGEN_INSN * 574xstormy16_cgen_assemble_insn (CGEN_CPU_DESC cd, 575 const char *str, 576 CGEN_FIELDS *fields, 577 CGEN_INSN_BYTES_PTR buf, 578 char **errmsg) 579{ 580 const char *start; 581 CGEN_INSN_LIST *ilist; 582 const char *parse_errmsg = NULL; 583 const char *insert_errmsg = NULL; 584 int recognized_mnemonic = 0; 585 586 /* Skip leading white space. */ 587 while (ISSPACE (* str)) 588 ++ str; 589 590 /* The instructions are stored in hashed lists. 591 Get the first in the list. */ 592 ilist = CGEN_ASM_LOOKUP_INSN (cd, str); 593 594 /* Keep looking until we find a match. */ 595 start = str; 596 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) 597 { 598 const CGEN_INSN *insn = ilist->insn; 599 recognized_mnemonic = 1; 600 601#ifdef CGEN_VALIDATE_INSN_SUPPORTED 602 /* Not usually needed as unsupported opcodes 603 shouldn't be in the hash lists. */ 604 /* Is this insn supported by the selected cpu? */ 605 if (! xstormy16_cgen_insn_supported (cd, insn)) 606 continue; 607#endif 608 /* If the RELAXED attribute is set, this is an insn that shouldn't be 609 chosen immediately. Instead, it is used during assembler/linker 610 relaxation if possible. */ 611 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) 612 continue; 613 614 str = start; 615 616 /* Skip this insn if str doesn't look right lexically. */ 617 if (CGEN_INSN_RX (insn) != NULL && 618 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) 619 continue; 620 621 /* Allow parse/insert handlers to obtain length of insn. */ 622 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); 623 624 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); 625 if (parse_errmsg != NULL) 626 continue; 627 628 /* ??? 0 is passed for `pc'. */ 629 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, 630 (bfd_vma) 0); 631 if (insert_errmsg != NULL) 632 continue; 633 634 /* It is up to the caller to actually output the insn and any 635 queued relocs. */ 636 return insn; 637 } 638 639 { 640 static char errbuf[150]; 641#ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS 642 const char *tmp_errmsg; 643 644 /* If requesting verbose error messages, use insert_errmsg. 645 Failing that, use parse_errmsg. */ 646 tmp_errmsg = (insert_errmsg ? insert_errmsg : 647 parse_errmsg ? parse_errmsg : 648 recognized_mnemonic ? 649 _("unrecognized form of instruction") : 650 _("unrecognized instruction")); 651 652 if (strlen (start) > 50) 653 /* xgettext:c-format */ 654 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); 655 else 656 /* xgettext:c-format */ 657 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); 658#else 659 if (strlen (start) > 50) 660 /* xgettext:c-format */ 661 sprintf (errbuf, _("bad instruction `%.50s...'"), start); 662 else 663 /* xgettext:c-format */ 664 sprintf (errbuf, _("bad instruction `%.50s'"), start); 665#endif 666 667 *errmsg = errbuf; 668 return NULL; 669 } 670} 671