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) 1996-2023 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 "xstormy16-desc.h"
36 #include "xstormy16-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 /* The machine-independent code doesn't know how to disambiguate
55 mov (foo),r3
56 and
57 mov (r2),r3
58 where 'foo' is a label. This helps it out. */
59
60 static const char *
61 parse_mem8 (CGEN_CPU_DESC cd,
62 const char **strp,
63 int opindex,
64 unsigned long *valuep)
65 {
66 if (**strp == '(')
67 {
68 const char *s = *strp;
69
70 if (s[1] == '-' && s[2] == '-')
71 return _("Bad register in preincrement");
72
73 while (ISALNUM (*++s))
74 ;
75 if (s[0] == '+' && s[1] == '+' && (s[2] == ')' || s[2] == ','))
76 return _("Bad register in postincrement");
77 if (s[0] == ',' || s[0] == ')')
78 return _("Bad register name");
79 }
80 else if (cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names,
81 (long *) valuep) == NULL)
82 return _("Label conflicts with register name");
83 else if (strncasecmp (*strp, "rx,", 3) == 0
84 || strncasecmp (*strp, "rxl,", 3) == 0
85 || strncasecmp (*strp, "rxh,", 3) == 0)
86 return _("Label conflicts with `Rx'");
87 else if (**strp == '#')
88 return _("Bad immediate expression");
89
90 return cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
91 }
92
93 /* For the add and subtract instructions, there are two immediate forms,
94 one for small operands and one for large ones. We want to use
95 the small one when possible, but we do not want to generate relocs
96 of the small size. This is somewhat tricky. */
97
98 static const char *
99 parse_small_immediate (CGEN_CPU_DESC cd,
100 const char **strp,
101 int opindex,
102 unsigned long *valuep)
103 {
104 bfd_vma value;
105 enum cgen_parse_operand_result result;
106 const char *errmsg;
107
108 if (**strp == '@')
109 return _("No relocation for small immediate");
110
111 errmsg = (* cd->parse_operand_fn)
112 (cd, CGEN_PARSE_OPERAND_INTEGER, strp, opindex, BFD_RELOC_NONE,
113 & result, & value);
114
115 if (errmsg)
116 return errmsg;
117
118 if (result != CGEN_PARSE_OPERAND_RESULT_NUMBER)
119 return _("Small operand was not an immediate number");
120
121 *valuep = value;
122 return NULL;
123 }
124
125 /* Literal scan be either a normal literal, a @hi() or @lo relocation. */
126
127 static const char *
128 parse_immediate16 (CGEN_CPU_DESC cd,
129 const char **strp,
130 int opindex,
131 unsigned long *valuep)
132 {
133 const char *errmsg;
134 enum cgen_parse_operand_result result;
135 bfd_reloc_code_real_type code = BFD_RELOC_NONE;
136 bfd_vma value;
137
138 if (strncmp (*strp, "@hi(", 4) == 0)
139 {
140 *strp += 4;
141 code = BFD_RELOC_HI16;
142 }
143 else
144 if (strncmp (*strp, "@lo(", 4) == 0)
145 {
146 *strp += 4;
147 code = BFD_RELOC_LO16;
148 }
149
150 if (code == BFD_RELOC_NONE)
151 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
152 else
153 {
154 errmsg = cgen_parse_address (cd, strp, opindex, code, &result, &value);
155 if ((errmsg == NULL) &&
156 (result != CGEN_PARSE_OPERAND_RESULT_QUEUED))
157 errmsg = _("Operand is not a symbol");
158
159 *valuep = value;
160 if ((code == BFD_RELOC_HI16 || code == BFD_RELOC_LO16)
161 && **strp == ')')
162 *strp += 1;
163 else
164 {
165 errmsg = _("Syntax error: No trailing ')'");
166 return errmsg;
167 }
168 }
169 return errmsg;
170 }
171 /* -- */
172
173 const char * xstormy16_cgen_parse_operand
174 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
175
176 /* Main entry point for operand parsing.
177
178 This function is basically just a big switch statement. Earlier versions
179 used tables to look up the function to use, but
180 - if the table contains both assembler and disassembler functions then
181 the disassembler contains much of the assembler and vice-versa,
182 - there's a lot of inlining possibilities as things grow,
183 - using a switch statement avoids the function call overhead.
184
185 This function could be moved into `parse_insn_normal', but keeping it
186 separate makes clear the interface between `parse_insn_normal' and each of
187 the handlers. */
188
189 const char *
190 xstormy16_cgen_parse_operand (CGEN_CPU_DESC cd,
191 int opindex,
192 const char ** strp,
193 CGEN_FIELDS * fields)
194 {
195 const char * errmsg = NULL;
196 /* Used by scalar operands that still need to be parsed. */
197 long junk ATTRIBUTE_UNUSED;
198
199 switch (opindex)
200 {
201 case XSTORMY16_OPERAND_RB :
202 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_Rb_names, & fields->f_Rb);
203 break;
204 case XSTORMY16_OPERAND_RBJ :
205 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_Rb_names, & fields->f_Rbj);
206 break;
207 case XSTORMY16_OPERAND_RD :
208 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, & fields->f_Rd);
209 break;
210 case XSTORMY16_OPERAND_RDM :
211 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, & fields->f_Rdm);
212 break;
213 case XSTORMY16_OPERAND_RM :
214 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, & fields->f_Rm);
215 break;
216 case XSTORMY16_OPERAND_RS :
217 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_gr_names, & fields->f_Rs);
218 break;
219 case XSTORMY16_OPERAND_ABS24 :
220 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_ABS24, (unsigned long *) (& fields->f_abs24));
221 break;
222 case XSTORMY16_OPERAND_BCOND2 :
223 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_h_branchcond, & fields->f_op2);
224 break;
225 case XSTORMY16_OPERAND_BCOND5 :
226 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_h_branchcond, & fields->f_op5);
227 break;
228 case XSTORMY16_OPERAND_HMEM8 :
229 errmsg = parse_mem8 (cd, strp, XSTORMY16_OPERAND_HMEM8, (unsigned long *) (& fields->f_hmem8));
230 break;
231 case XSTORMY16_OPERAND_IMM12 :
232 errmsg = cgen_parse_signed_integer (cd, strp, XSTORMY16_OPERAND_IMM12, (long *) (& fields->f_imm12));
233 break;
234 case XSTORMY16_OPERAND_IMM16 :
235 errmsg = parse_immediate16 (cd, strp, XSTORMY16_OPERAND_IMM16, (unsigned long *) (& fields->f_imm16));
236 break;
237 case XSTORMY16_OPERAND_IMM2 :
238 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_IMM2, (unsigned long *) (& fields->f_imm2));
239 break;
240 case XSTORMY16_OPERAND_IMM3 :
241 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_IMM3, (unsigned long *) (& fields->f_imm3));
242 break;
243 case XSTORMY16_OPERAND_IMM3B :
244 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_IMM3B, (unsigned long *) (& fields->f_imm3b));
245 break;
246 case XSTORMY16_OPERAND_IMM4 :
247 errmsg = parse_small_immediate (cd, strp, XSTORMY16_OPERAND_IMM4, (unsigned long *) (& fields->f_imm4));
248 break;
249 case XSTORMY16_OPERAND_IMM8 :
250 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_IMM8, (unsigned long *) (& fields->f_imm8));
251 break;
252 case XSTORMY16_OPERAND_IMM8SMALL :
253 errmsg = parse_small_immediate (cd, strp, XSTORMY16_OPERAND_IMM8SMALL, (unsigned long *) (& fields->f_imm8));
254 break;
255 case XSTORMY16_OPERAND_LMEM8 :
256 errmsg = parse_mem8 (cd, strp, XSTORMY16_OPERAND_LMEM8, (unsigned long *) (& fields->f_lmem8));
257 break;
258 case XSTORMY16_OPERAND_REL12 :
259 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_REL12, (unsigned long *) (& fields->f_rel12));
260 break;
261 case XSTORMY16_OPERAND_REL12A :
262 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_REL12A, (unsigned long *) (& fields->f_rel12a));
263 break;
264 case XSTORMY16_OPERAND_REL8_2 :
265 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_REL8_2, (unsigned long *) (& fields->f_rel8_2));
266 break;
267 case XSTORMY16_OPERAND_REL8_4 :
268 errmsg = cgen_parse_unsigned_integer (cd, strp, XSTORMY16_OPERAND_REL8_4, (unsigned long *) (& fields->f_rel8_4));
269 break;
270 case XSTORMY16_OPERAND_WS2 :
271 errmsg = cgen_parse_keyword (cd, strp, & xstormy16_cgen_opval_h_wordsize, & fields->f_op2m);
272 break;
273
274 default :
275 /* xgettext:c-format */
276 opcodes_error_handler
277 (_("internal error: unrecognized field %d while parsing"),
278 opindex);
279 abort ();
280 }
281
282 return errmsg;
283 }
284
285 cgen_parse_fn * const xstormy16_cgen_parse_handlers[] =
286 {
287 parse_insn_normal,
288 };
289
290 void
291 xstormy16_cgen_init_asm (CGEN_CPU_DESC cd)
292 {
293 xstormy16_cgen_init_opcode_table (cd);
294 xstormy16_cgen_init_ibld_table (cd);
295 cd->parse_handlers = & xstormy16_cgen_parse_handlers[0];
296 cd->parse_operand = xstormy16_cgen_parse_operand;
297 #ifdef CGEN_ASM_INIT_HOOK
298 CGEN_ASM_INIT_HOOK
299 #endif
300 }
301
302
303
304 /* Regex construction routine.
305
306 This translates an opcode syntax string into a regex string,
307 by replacing any non-character syntax element (such as an
308 opcode) with the pattern '.*'
309
310 It then compiles the regex and stores it in the opcode, for
311 later use by xstormy16_cgen_assemble_insn
312
313 Returns NULL for success, an error message for failure. */
314
315 char *
316 xstormy16_cgen_build_insn_regex (CGEN_INSN *insn)
317 {
318 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
319 const char *mnem = CGEN_INSN_MNEMONIC (insn);
320 char rxbuf[CGEN_MAX_RX_ELEMENTS];
321 char *rx = rxbuf;
322 const CGEN_SYNTAX_CHAR_TYPE *syn;
323 int reg_err;
324
325 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
326
327 /* Mnemonics come first in the syntax string. */
328 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
329 return _("missing mnemonic in syntax string");
330 ++syn;
331
332 /* Generate a case sensitive regular expression that emulates case
333 insensitive matching in the "C" locale. We cannot generate a case
334 insensitive regular expression because in Turkish locales, 'i' and 'I'
335 are not equal modulo case conversion. */
336
337 /* Copy the literal mnemonic out of the insn. */
338 for (; *mnem; mnem++)
339 {
340 char c = *mnem;
341
342 if (ISALPHA (c))
343 {
344 *rx++ = '[';
345 *rx++ = TOLOWER (c);
346 *rx++ = TOUPPER (c);
347 *rx++ = ']';
348 }
349 else
350 *rx++ = c;
351 }
352
353 /* Copy any remaining literals from the syntax string into the rx. */
354 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
355 {
356 if (CGEN_SYNTAX_CHAR_P (* syn))
357 {
358 char c = CGEN_SYNTAX_CHAR (* syn);
359
360 switch (c)
361 {
362 /* Escape any regex metacharacters in the syntax. */
363 case '.': case '[': case '\\':
364 case '*': case '^': case '$':
365
366 #ifdef CGEN_ESCAPE_EXTENDED_REGEX
367 case '?': case '{': case '}':
368 case '(': case ')': case '*':
369 case '|': case '+': case ']':
370 #endif
371 *rx++ = '\\';
372 *rx++ = c;
373 break;
374
375 default:
376 if (ISALPHA (c))
377 {
378 *rx++ = '[';
379 *rx++ = TOLOWER (c);
380 *rx++ = TOUPPER (c);
381 *rx++ = ']';
382 }
383 else
384 *rx++ = c;
385 break;
386 }
387 }
388 else
389 {
390 /* Replace non-syntax fields with globs. */
391 *rx++ = '.';
392 *rx++ = '*';
393 }
394 }
395
396 /* Trailing whitespace ok. */
397 * rx++ = '[';
398 * rx++ = ' ';
399 * rx++ = '\t';
400 * rx++ = ']';
401 * rx++ = '*';
402
403 /* But anchor it after that. */
404 * rx++ = '$';
405 * rx = '\0';
406
407 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
408 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
409
410 if (reg_err == 0)
411 return NULL;
412 else
413 {
414 static char msg[80];
415
416 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
417 regfree ((regex_t *) CGEN_INSN_RX (insn));
418 free (CGEN_INSN_RX (insn));
419 (CGEN_INSN_RX (insn)) = NULL;
420 return msg;
421 }
422 }
423
424
425 /* Default insn parser.
426
427 The syntax string is scanned and operands are parsed and stored in FIELDS.
428 Relocs are queued as we go via other callbacks.
429
430 ??? Note that this is currently an all-or-nothing parser. If we fail to
431 parse the instruction, we return 0 and the caller will start over from
432 the beginning. Backtracking will be necessary in parsing subexpressions,
433 but that can be handled there. Not handling backtracking here may get
434 expensive in the case of the m68k. Deal with later.
435
436 Returns NULL for success, an error message for failure. */
437
438 static const char *
439 parse_insn_normal (CGEN_CPU_DESC cd,
440 const CGEN_INSN *insn,
441 const char **strp,
442 CGEN_FIELDS *fields)
443 {
444 /* ??? Runtime added insns not handled yet. */
445 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
446 const char *str = *strp;
447 const char *errmsg;
448 const char *p;
449 const CGEN_SYNTAX_CHAR_TYPE * syn;
450 #ifdef CGEN_MNEMONIC_OPERANDS
451 /* FIXME: wip */
452 int past_opcode_p;
453 #endif
454
455 /* For now we assume the mnemonic is first (there are no leading operands).
456 We can parse it without needing to set up operand parsing.
457 GAS's input scrubber will ensure mnemonics are lowercase, but we may
458 not be called from GAS. */
459 p = CGEN_INSN_MNEMONIC (insn);
460 while (*p && TOLOWER (*p) == TOLOWER (*str))
461 ++p, ++str;
462
463 if (* p)
464 return _("unrecognized instruction");
465
466 #ifndef CGEN_MNEMONIC_OPERANDS
467 if (* str && ! ISSPACE (* str))
468 return _("unrecognized instruction");
469 #endif
470
471 CGEN_INIT_PARSE (cd);
472 cgen_init_parse_operand (cd);
473 #ifdef CGEN_MNEMONIC_OPERANDS
474 past_opcode_p = 0;
475 #endif
476
477 /* We don't check for (*str != '\0') here because we want to parse
478 any trailing fake arguments in the syntax string. */
479 syn = CGEN_SYNTAX_STRING (syntax);
480
481 /* Mnemonics come first for now, ensure valid string. */
482 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
483 abort ();
484
485 ++syn;
486
487 while (* syn != 0)
488 {
489 /* Non operand chars must match exactly. */
490 if (CGEN_SYNTAX_CHAR_P (* syn))
491 {
492 /* FIXME: While we allow for non-GAS callers above, we assume the
493 first char after the mnemonic part is a space. */
494 /* FIXME: We also take inappropriate advantage of the fact that
495 GAS's input scrubber will remove extraneous blanks. */
496 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
497 {
498 #ifdef CGEN_MNEMONIC_OPERANDS
499 if (CGEN_SYNTAX_CHAR(* syn) == ' ')
500 past_opcode_p = 1;
501 #endif
502 ++ syn;
503 ++ str;
504 }
505 else if (*str)
506 {
507 /* Syntax char didn't match. Can't be this insn. */
508 static char msg [80];
509
510 /* xgettext:c-format */
511 sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
512 CGEN_SYNTAX_CHAR(*syn), *str);
513 return msg;
514 }
515 else
516 {
517 /* Ran out of input. */
518 static char msg [80];
519
520 /* xgettext:c-format */
521 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
522 CGEN_SYNTAX_CHAR(*syn));
523 return msg;
524 }
525 continue;
526 }
527
528 #ifdef CGEN_MNEMONIC_OPERANDS
529 (void) past_opcode_p;
530 #endif
531 /* We have an operand of some sort. */
532 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields);
533 if (errmsg)
534 return errmsg;
535
536 /* Done with this operand, continue with next one. */
537 ++ syn;
538 }
539
540 /* If we're at the end of the syntax string, we're done. */
541 if (* syn == 0)
542 {
543 /* FIXME: For the moment we assume a valid `str' can only contain
544 blanks now. IE: We needn't try again with a longer version of
545 the insn and it is assumed that longer versions of insns appear
546 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
547 while (ISSPACE (* str))
548 ++ str;
549
550 if (* str != '\0')
551 return _("junk at end of line"); /* FIXME: would like to include `str' */
552
553 return NULL;
554 }
555
556 /* We couldn't parse it. */
557 return _("unrecognized instruction");
558 }
559
560 /* Main entry point.
561 This routine is called for each instruction to be assembled.
562 STR points to the insn to be assembled.
563 We assume all necessary tables have been initialized.
564 The assembled instruction, less any fixups, is stored in BUF.
565 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value
566 still needs to be converted to target byte order, otherwise BUF is an array
567 of bytes in target byte order.
568 The result is a pointer to the insn's entry in the opcode table,
569 or NULL if an error occured (an error message will have already been
570 printed).
571
572 Note that when processing (non-alias) macro-insns,
573 this function recurses.
574
575 ??? It's possible to make this cpu-independent.
576 One would have to deal with a few minor things.
577 At this point in time doing so would be more of a curiosity than useful
578 [for example this file isn't _that_ big], but keeping the possibility in
579 mind helps keep the design clean. */
580
581 const CGEN_INSN *
582 xstormy16_cgen_assemble_insn (CGEN_CPU_DESC cd,
583 const char *str,
584 CGEN_FIELDS *fields,
585 CGEN_INSN_BYTES_PTR buf,
586 char **errmsg)
587 {
588 const char *start;
589 CGEN_INSN_LIST *ilist;
590 const char *parse_errmsg = NULL;
591 const char *insert_errmsg = NULL;
592 int recognized_mnemonic = 0;
593
594 /* Skip leading white space. */
595 while (ISSPACE (* str))
596 ++ str;
597
598 /* The instructions are stored in hashed lists.
599 Get the first in the list. */
600 ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
601
602 /* Keep looking until we find a match. */
603 start = str;
604 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
605 {
606 const CGEN_INSN *insn = ilist->insn;
607 recognized_mnemonic = 1;
608
609 #ifdef CGEN_VALIDATE_INSN_SUPPORTED
610 /* Not usually needed as unsupported opcodes
611 shouldn't be in the hash lists. */
612 /* Is this insn supported by the selected cpu? */
613 if (! xstormy16_cgen_insn_supported (cd, insn))
614 continue;
615 #endif
616 /* If the RELAXED attribute is set, this is an insn that shouldn't be
617 chosen immediately. Instead, it is used during assembler/linker
618 relaxation if possible. */
619 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
620 continue;
621
622 str = start;
623
624 /* Skip this insn if str doesn't look right lexically. */
625 if (CGEN_INSN_RX (insn) != NULL &&
626 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
627 continue;
628
629 /* Allow parse/insert handlers to obtain length of insn. */
630 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
631
632 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
633 if (parse_errmsg != NULL)
634 continue;
635
636 /* ??? 0 is passed for `pc'. */
637 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
638 (bfd_vma) 0);
639 if (insert_errmsg != NULL)
640 continue;
641
642 /* It is up to the caller to actually output the insn and any
643 queued relocs. */
644 return insn;
645 }
646
647 {
648 static char errbuf[150];
649 const char *tmp_errmsg;
650 #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
651 #define be_verbose 1
652 #else
653 #define be_verbose 0
654 #endif
655
656 if (be_verbose)
657 {
658 /* If requesting verbose error messages, use insert_errmsg.
659 Failing that, use parse_errmsg. */
660 tmp_errmsg = (insert_errmsg ? insert_errmsg :
661 parse_errmsg ? parse_errmsg :
662 recognized_mnemonic ?
663 _("unrecognized form of instruction") :
664 _("unrecognized instruction"));
665
666 if (strlen (start) > 50)
667 /* xgettext:c-format */
668 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
669 else
670 /* xgettext:c-format */
671 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
672 }
673 else
674 {
675 if (strlen (start) > 50)
676 /* xgettext:c-format */
677 sprintf (errbuf, _("bad instruction `%.50s...'"), start);
678 else
679 /* xgettext:c-format */
680 sprintf (errbuf, _("bad instruction `%.50s'"), start);
681 }
682
683 *errmsg = errbuf;
684 return NULL;
685 }
686 }