1 /* Assembler interface for targets using CGEN. -*- C -*-
2 CGEN: Cpu tools GENerator
4 THIS FILE IS MACHINE GENERATED WITH CGEN.
5 - the resultant file is machine generated, cgen-asm.in isn't
7 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2007, 2008, 2010
8 Free Software Foundation, Inc.
10 This file is part of libopcodes.
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)
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.
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. */
27 /* ??? Eventually more and more of this stuff can go to cpu-independent files.
35 #include "xc16x-desc.h"
36 #include "xc16x-opc.h"
39 #include "libiberty.h"
40 #include "safe-ctype.h"
43 #define min(a,b) ((a) < (b) ? (a) : (b))
45 #define max(a,b) ((a) > (b) ? (a) : (b))
47 static const char * parse_insn_normal
48 (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
50 /* -- assembler routines inserted here. */
53 /* Handle '#' prefixes (i.e. skip over them). */
56 parse_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
58 int opindex ATTRIBUTE_UNUSED,
59 long *valuep ATTRIBUTE_UNUSED)
66 return _("Missing '#' prefix");
69 /* Handle '.' prefixes (i.e. skip over them). */
72 parse_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
74 int opindex ATTRIBUTE_UNUSED,
75 long *valuep ATTRIBUTE_UNUSED)
82 return _("Missing '.' prefix");
85 /* Handle 'pof:' prefixes (i.e. skip over them). */
88 parse_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
90 int opindex ATTRIBUTE_UNUSED,
91 long *valuep ATTRIBUTE_UNUSED)
93 if (strncasecmp (*strp, "pof:", 4) == 0)
98 return _("Missing 'pof:' prefix");
101 /* Handle 'pag:' prefixes (i.e. skip over them). */
104 parse_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
106 int opindex ATTRIBUTE_UNUSED,
107 long *valuep ATTRIBUTE_UNUSED)
109 if (strncasecmp (*strp, "pag:", 4) == 0)
114 return _("Missing 'pag:' prefix");
117 /* Handle 'sof' prefixes (i.e. skip over them). */
120 parse_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
122 int opindex ATTRIBUTE_UNUSED,
123 long *valuep ATTRIBUTE_UNUSED)
125 if (strncasecmp (*strp, "sof:", 4) == 0)
130 return _("Missing 'sof:' prefix");
133 /* Handle 'seg' prefixes (i.e. skip over them). */
136 parse_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
138 int opindex ATTRIBUTE_UNUSED,
139 long *valuep ATTRIBUTE_UNUSED)
141 if (strncasecmp (*strp, "seg:", 4) == 0)
146 return _("Missing 'seg:' prefix");
150 const char * xc16x_cgen_parse_operand
151 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
153 /* Main entry point for operand parsing.
155 This function is basically just a big switch statement. Earlier versions
156 used tables to look up the function to use, but
157 - if the table contains both assembler and disassembler functions then
158 the disassembler contains much of the assembler and vice-versa,
159 - there's a lot of inlining possibilities as things grow,
160 - using a switch statement avoids the function call overhead.
162 This function could be moved into `parse_insn_normal', but keeping it
163 separate makes clear the interface between `parse_insn_normal' and each of
167 xc16x_cgen_parse_operand (CGEN_CPU_DESC cd,
170 CGEN_FIELDS * fields)
172 const char * errmsg = NULL;
173 /* Used by scalar operands that still need to be parsed. */
174 long junk ATTRIBUTE_UNUSED;
178 case XC16X_OPERAND_REGNAM :
179 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_psw_names, & fields->f_reg8);
181 case XC16X_OPERAND_BIT01 :
182 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT01, (unsigned long *) (& fields->f_op_1bit));
184 case XC16X_OPERAND_BIT1 :
185 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT1, (unsigned long *) (& fields->f_op_bit1));
187 case XC16X_OPERAND_BIT2 :
188 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT2, (unsigned long *) (& fields->f_op_bit2));
190 case XC16X_OPERAND_BIT4 :
191 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT4, (unsigned long *) (& fields->f_op_bit4));
193 case XC16X_OPERAND_BIT8 :
194 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT8, (unsigned long *) (& fields->f_op_bit8));
196 case XC16X_OPERAND_BITONE :
197 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BITONE, (unsigned long *) (& fields->f_op_onebit));
199 case XC16X_OPERAND_CADDR :
202 errmsg = cgen_parse_address (cd, strp, XC16X_OPERAND_CADDR, 0, NULL, & value);
203 fields->f_offset16 = value;
206 case XC16X_OPERAND_COND :
207 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_conditioncode_names, & fields->f_condcode);
209 case XC16X_OPERAND_DATA8 :
210 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_DATA8, (unsigned long *) (& fields->f_data8));
212 case XC16X_OPERAND_DATAHI8 :
213 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_DATAHI8, (unsigned long *) (& fields->f_datahi8));
215 case XC16X_OPERAND_DOT :
216 errmsg = parse_dot (cd, strp, XC16X_OPERAND_DOT, (long *) (& junk));
218 case XC16X_OPERAND_DR :
219 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r1);
221 case XC16X_OPERAND_DRB :
222 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_grb_names, & fields->f_r1);
224 case XC16X_OPERAND_DRI :
225 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r4);
227 case XC16X_OPERAND_EXTCOND :
228 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_extconditioncode_names, & fields->f_extccode);
230 case XC16X_OPERAND_GENREG :
231 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_r8_names, & fields->f_regb8);
233 case XC16X_OPERAND_HASH :
234 errmsg = parse_hash (cd, strp, XC16X_OPERAND_HASH, (long *) (& junk));
236 case XC16X_OPERAND_ICOND :
237 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_conditioncode_names, & fields->f_icondcode);
239 case XC16X_OPERAND_LBIT2 :
240 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_LBIT2, (unsigned long *) (& fields->f_op_lbit2));
242 case XC16X_OPERAND_LBIT4 :
243 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_LBIT4, (unsigned long *) (& fields->f_op_lbit4));
245 case XC16X_OPERAND_MASK8 :
246 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_MASK8, (unsigned long *) (& fields->f_mask8));
248 case XC16X_OPERAND_MASKLO8 :
249 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_MASKLO8, (unsigned long *) (& fields->f_datahi8));
251 case XC16X_OPERAND_MEMGR8 :
252 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_memgr8_names, & fields->f_memgr8);
254 case XC16X_OPERAND_MEMORY :
257 errmsg = cgen_parse_address (cd, strp, XC16X_OPERAND_MEMORY, 0, NULL, & value);
258 fields->f_memory = value;
261 case XC16X_OPERAND_PAG :
262 errmsg = parse_pag (cd, strp, XC16X_OPERAND_PAG, (long *) (& junk));
264 case XC16X_OPERAND_PAGENUM :
265 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_PAGENUM, (unsigned long *) (& fields->f_pagenum));
267 case XC16X_OPERAND_POF :
268 errmsg = parse_pof (cd, strp, XC16X_OPERAND_POF, (long *) (& junk));
270 case XC16X_OPERAND_QBIT :
271 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_QBIT, (unsigned long *) (& fields->f_qbit));
273 case XC16X_OPERAND_QHIBIT :
274 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_QHIBIT, (unsigned long *) (& fields->f_qhibit));
276 case XC16X_OPERAND_QLOBIT :
277 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_QLOBIT, (unsigned long *) (& fields->f_qlobit));
279 case XC16X_OPERAND_REG8 :
280 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_r8_names, & fields->f_reg8);
282 case XC16X_OPERAND_REGB8 :
283 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_grb8_names, & fields->f_regb8);
285 case XC16X_OPERAND_REGBMEM8 :
286 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_regbmem8_names, & fields->f_regmem8);
288 case XC16X_OPERAND_REGHI8 :
289 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_r8_names, & fields->f_reghi8);
291 case XC16X_OPERAND_REGMEM8 :
292 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_regmem8_names, & fields->f_regmem8);
294 case XC16X_OPERAND_REGOFF8 :
295 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_r8_names, & fields->f_regoff8);
297 case XC16X_OPERAND_REL :
298 errmsg = cgen_parse_signed_integer (cd, strp, XC16X_OPERAND_REL, (long *) (& fields->f_rel8));
300 case XC16X_OPERAND_RELHI :
301 errmsg = cgen_parse_signed_integer (cd, strp, XC16X_OPERAND_RELHI, (long *) (& fields->f_relhi8));
303 case XC16X_OPERAND_SEG :
304 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_SEG, (unsigned long *) (& fields->f_seg8));
306 case XC16X_OPERAND_SEGHI8 :
307 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_SEGHI8, (unsigned long *) (& fields->f_segnum8));
309 case XC16X_OPERAND_SEGM :
310 errmsg = parse_seg (cd, strp, XC16X_OPERAND_SEGM, (long *) (& junk));
312 case XC16X_OPERAND_SOF :
313 errmsg = parse_sof (cd, strp, XC16X_OPERAND_SOF, (long *) (& junk));
315 case XC16X_OPERAND_SR :
316 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r2);
318 case XC16X_OPERAND_SR2 :
319 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r0);
321 case XC16X_OPERAND_SRB :
322 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_grb_names, & fields->f_r2);
324 case XC16X_OPERAND_SRC1 :
325 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r1);
327 case XC16X_OPERAND_SRC2 :
328 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r2);
330 case XC16X_OPERAND_SRDIV :
331 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_regdiv8_names, & fields->f_reg8);
333 case XC16X_OPERAND_U4 :
334 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_reg0_name, & fields->f_uimm4);
336 case XC16X_OPERAND_UIMM16 :
337 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UIMM16, (unsigned long *) (& fields->f_uimm16));
339 case XC16X_OPERAND_UIMM2 :
340 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_ext_names, & fields->f_uimm2);
342 case XC16X_OPERAND_UIMM3 :
343 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_reg0_name1, & fields->f_uimm3);
345 case XC16X_OPERAND_UIMM4 :
346 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UIMM4, (unsigned long *) (& fields->f_uimm4));
348 case XC16X_OPERAND_UIMM7 :
349 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UIMM7, (unsigned long *) (& fields->f_uimm7));
351 case XC16X_OPERAND_UIMM8 :
352 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UIMM8, (unsigned long *) (& fields->f_uimm8));
354 case XC16X_OPERAND_UPAG16 :
355 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UPAG16, (unsigned long *) (& fields->f_uimm16));
357 case XC16X_OPERAND_UPOF16 :
360 errmsg = cgen_parse_address (cd, strp, XC16X_OPERAND_UPOF16, 0, NULL, & value);
361 fields->f_memory = value;
364 case XC16X_OPERAND_USEG16 :
365 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_USEG16, (unsigned long *) (& fields->f_offset16));
367 case XC16X_OPERAND_USEG8 :
368 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_USEG8, (unsigned long *) (& fields->f_seg8));
370 case XC16X_OPERAND_USOF16 :
371 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_USOF16, (unsigned long *) (& fields->f_offset16));
375 /* xgettext:c-format */
376 fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex);
383 cgen_parse_fn * const xc16x_cgen_parse_handlers[] =
389 xc16x_cgen_init_asm (CGEN_CPU_DESC cd)
391 xc16x_cgen_init_opcode_table (cd);
392 xc16x_cgen_init_ibld_table (cd);
393 cd->parse_handlers = & xc16x_cgen_parse_handlers[0];
394 cd->parse_operand = xc16x_cgen_parse_operand;
395 #ifdef CGEN_ASM_INIT_HOOK
402 /* Regex construction routine.
404 This translates an opcode syntax string into a regex string,
405 by replacing any non-character syntax element (such as an
406 opcode) with the pattern '.*'
408 It then compiles the regex and stores it in the opcode, for
409 later use by xc16x_cgen_assemble_insn
411 Returns NULL for success, an error message for failure. */
414 xc16x_cgen_build_insn_regex (CGEN_INSN *insn)
416 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
417 const char *mnem = CGEN_INSN_MNEMONIC (insn);
418 char rxbuf[CGEN_MAX_RX_ELEMENTS];
420 const CGEN_SYNTAX_CHAR_TYPE *syn;
423 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
425 /* Mnemonics come first in the syntax string. */
426 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
427 return _("missing mnemonic in syntax string");
430 /* Generate a case sensitive regular expression that emulates case
431 insensitive matching in the "C" locale. We cannot generate a case
432 insensitive regular expression because in Turkish locales, 'i' and 'I'
433 are not equal modulo case conversion. */
435 /* Copy the literal mnemonic out of the insn. */
436 for (; *mnem; mnem++)
451 /* Copy any remaining literals from the syntax string into the rx. */
452 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
454 if (CGEN_SYNTAX_CHAR_P (* syn))
456 char c = CGEN_SYNTAX_CHAR (* syn);
460 /* Escape any regex metacharacters in the syntax. */
461 case '.': case '[': case '\\':
462 case '*': case '^': case '$':
464 #ifdef CGEN_ESCAPE_EXTENDED_REGEX
465 case '?': case '{': case '}':
466 case '(': case ')': case '*':
467 case '|': case '+': case ']':
488 /* Replace non-syntax fields with globs. */
494 /* Trailing whitespace ok. */
501 /* But anchor it after that. */
505 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
506 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
514 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
515 regfree ((regex_t *) CGEN_INSN_RX (insn));
516 free (CGEN_INSN_RX (insn));
517 (CGEN_INSN_RX (insn)) = NULL;
523 /* Default insn parser.
525 The syntax string is scanned and operands are parsed and stored in FIELDS.
526 Relocs are queued as we go via other callbacks.
528 ??? Note that this is currently an all-or-nothing parser. If we fail to
529 parse the instruction, we return 0 and the caller will start over from
530 the beginning. Backtracking will be necessary in parsing subexpressions,
531 but that can be handled there. Not handling backtracking here may get
532 expensive in the case of the m68k. Deal with later.
534 Returns NULL for success, an error message for failure. */
537 parse_insn_normal (CGEN_CPU_DESC cd,
538 const CGEN_INSN *insn,
542 /* ??? Runtime added insns not handled yet. */
543 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
544 const char *str = *strp;
547 const CGEN_SYNTAX_CHAR_TYPE * syn;
548 #ifdef CGEN_MNEMONIC_OPERANDS
553 /* For now we assume the mnemonic is first (there are no leading operands).
554 We can parse it without needing to set up operand parsing.
555 GAS's input scrubber will ensure mnemonics are lowercase, but we may
556 not be called from GAS. */
557 p = CGEN_INSN_MNEMONIC (insn);
558 while (*p && TOLOWER (*p) == TOLOWER (*str))
562 return _("unrecognized instruction");
564 #ifndef CGEN_MNEMONIC_OPERANDS
565 if (* str && ! ISSPACE (* str))
566 return _("unrecognized instruction");
569 CGEN_INIT_PARSE (cd);
570 cgen_init_parse_operand (cd);
571 #ifdef CGEN_MNEMONIC_OPERANDS
575 /* We don't check for (*str != '\0') here because we want to parse
576 any trailing fake arguments in the syntax string. */
577 syn = CGEN_SYNTAX_STRING (syntax);
579 /* Mnemonics come first for now, ensure valid string. */
580 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
587 /* Non operand chars must match exactly. */
588 if (CGEN_SYNTAX_CHAR_P (* syn))
590 /* FIXME: While we allow for non-GAS callers above, we assume the
591 first char after the mnemonic part is a space. */
592 /* FIXME: We also take inappropriate advantage of the fact that
593 GAS's input scrubber will remove extraneous blanks. */
594 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
596 #ifdef CGEN_MNEMONIC_OPERANDS
597 if (CGEN_SYNTAX_CHAR(* syn) == ' ')
605 /* Syntax char didn't match. Can't be this insn. */
606 static char msg [80];
608 /* xgettext:c-format */
609 sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
610 CGEN_SYNTAX_CHAR(*syn), *str);
615 /* Ran out of input. */
616 static char msg [80];
618 /* xgettext:c-format */
619 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
620 CGEN_SYNTAX_CHAR(*syn));
626 #ifdef CGEN_MNEMONIC_OPERANDS
627 (void) past_opcode_p;
629 /* We have an operand of some sort. */
630 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields);
634 /* Done with this operand, continue with next one. */
638 /* If we're at the end of the syntax string, we're done. */
641 /* FIXME: For the moment we assume a valid `str' can only contain
642 blanks now. IE: We needn't try again with a longer version of
643 the insn and it is assumed that longer versions of insns appear
644 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
645 while (ISSPACE (* str))
649 return _("junk at end of line"); /* FIXME: would like to include `str' */
654 /* We couldn't parse it. */
655 return _("unrecognized instruction");
659 This routine is called for each instruction to be assembled.
660 STR points to the insn to be assembled.
661 We assume all necessary tables have been initialized.
662 The assembled instruction, less any fixups, is stored in BUF.
663 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value
664 still needs to be converted to target byte order, otherwise BUF is an array
665 of bytes in target byte order.
666 The result is a pointer to the insn's entry in the opcode table,
667 or NULL if an error occured (an error message will have already been
670 Note that when processing (non-alias) macro-insns,
671 this function recurses.
673 ??? It's possible to make this cpu-independent.
674 One would have to deal with a few minor things.
675 At this point in time doing so would be more of a curiosity than useful
676 [for example this file isn't _that_ big], but keeping the possibility in
677 mind helps keep the design clean. */
680 xc16x_cgen_assemble_insn (CGEN_CPU_DESC cd,
683 CGEN_INSN_BYTES_PTR buf,
687 CGEN_INSN_LIST *ilist;
688 const char *parse_errmsg = NULL;
689 const char *insert_errmsg = NULL;
690 int recognized_mnemonic = 0;
692 /* Skip leading white space. */
693 while (ISSPACE (* str))
696 /* The instructions are stored in hashed lists.
697 Get the first in the list. */
698 ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
700 /* Keep looking until we find a match. */
702 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
704 const CGEN_INSN *insn = ilist->insn;
705 recognized_mnemonic = 1;
707 #ifdef CGEN_VALIDATE_INSN_SUPPORTED
708 /* Not usually needed as unsupported opcodes
709 shouldn't be in the hash lists. */
710 /* Is this insn supported by the selected cpu? */
711 if (! xc16x_cgen_insn_supported (cd, insn))
714 /* If the RELAXED attribute is set, this is an insn that shouldn't be
715 chosen immediately. Instead, it is used during assembler/linker
716 relaxation if possible. */
717 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
722 /* Skip this insn if str doesn't look right lexically. */
723 if (CGEN_INSN_RX (insn) != NULL &&
724 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
727 /* Allow parse/insert handlers to obtain length of insn. */
728 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
730 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
731 if (parse_errmsg != NULL)
734 /* ??? 0 is passed for `pc'. */
735 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
737 if (insert_errmsg != NULL)
740 /* It is up to the caller to actually output the insn and any
746 static char errbuf[150];
747 const char *tmp_errmsg;
748 #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
756 /* If requesting verbose error messages, use insert_errmsg.
757 Failing that, use parse_errmsg. */
758 tmp_errmsg = (insert_errmsg ? insert_errmsg :
759 parse_errmsg ? parse_errmsg :
760 recognized_mnemonic ?
761 _("unrecognized form of instruction") :
762 _("unrecognized instruction"));
764 if (strlen (start) > 50)
765 /* xgettext:c-format */
766 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
768 /* xgettext:c-format */
769 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
773 if (strlen (start) > 50)
774 /* xgettext:c-format */
775 sprintf (errbuf, _("bad instruction `%.50s...'"), start);
777 /* xgettext:c-format */
778 sprintf (errbuf, _("bad instruction `%.50s'"), start);