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 (C) 1996-2017 Free Software Foundation, Inc.
9 This file is part of libopcodes.
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)
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.
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. */
26 /* ??? Eventually more and more of this stuff can go to cpu-independent files.
34 #include "xc16x-desc.h"
35 #include "xc16x-opc.h"
38 #include "libiberty.h"
39 #include "safe-ctype.h"
42 #define min(a,b) ((a) < (b) ? (a) : (b))
44 #define max(a,b) ((a) > (b) ? (a) : (b))
46 static const char * parse_insn_normal
47 (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
49 /* -- assembler routines inserted here. */
52 /* Handle '#' prefixes (i.e. skip over them). */
55 parse_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
57 int opindex ATTRIBUTE_UNUSED,
58 long *valuep ATTRIBUTE_UNUSED)
65 return _("Missing '#' prefix");
68 /* Handle '.' prefixes (i.e. skip over them). */
71 parse_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
73 int opindex ATTRIBUTE_UNUSED,
74 long *valuep ATTRIBUTE_UNUSED)
81 return _("Missing '.' prefix");
84 /* Handle 'pof:' prefixes (i.e. skip over them). */
87 parse_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
89 int opindex ATTRIBUTE_UNUSED,
90 long *valuep ATTRIBUTE_UNUSED)
92 if (strncasecmp (*strp, "pof:", 4) == 0)
97 return _("Missing 'pof:' prefix");
100 /* Handle 'pag:' prefixes (i.e. skip over them). */
103 parse_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
105 int opindex ATTRIBUTE_UNUSED,
106 long *valuep ATTRIBUTE_UNUSED)
108 if (strncasecmp (*strp, "pag:", 4) == 0)
113 return _("Missing 'pag:' prefix");
116 /* Handle 'sof' prefixes (i.e. skip over them). */
119 parse_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
121 int opindex ATTRIBUTE_UNUSED,
122 long *valuep ATTRIBUTE_UNUSED)
124 if (strncasecmp (*strp, "sof:", 4) == 0)
129 return _("Missing 'sof:' prefix");
132 /* Handle 'seg' prefixes (i.e. skip over them). */
135 parse_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
137 int opindex ATTRIBUTE_UNUSED,
138 long *valuep ATTRIBUTE_UNUSED)
140 if (strncasecmp (*strp, "seg:", 4) == 0)
145 return _("Missing 'seg:' prefix");
149 const char * xc16x_cgen_parse_operand
150 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
152 /* Main entry point for operand parsing.
154 This function is basically just a big switch statement. Earlier versions
155 used tables to look up the function to use, but
156 - if the table contains both assembler and disassembler functions then
157 the disassembler contains much of the assembler and vice-versa,
158 - there's a lot of inlining possibilities as things grow,
159 - using a switch statement avoids the function call overhead.
161 This function could be moved into `parse_insn_normal', but keeping it
162 separate makes clear the interface between `parse_insn_normal' and each of
166 xc16x_cgen_parse_operand (CGEN_CPU_DESC cd,
169 CGEN_FIELDS * fields)
171 const char * errmsg = NULL;
172 /* Used by scalar operands that still need to be parsed. */
173 long junk ATTRIBUTE_UNUSED;
177 case XC16X_OPERAND_REGNAM :
178 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_psw_names, & fields->f_reg8);
180 case XC16X_OPERAND_BIT01 :
181 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT01, (unsigned long *) (& fields->f_op_1bit));
183 case XC16X_OPERAND_BIT1 :
184 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT1, (unsigned long *) (& fields->f_op_bit1));
186 case XC16X_OPERAND_BIT2 :
187 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT2, (unsigned long *) (& fields->f_op_bit2));
189 case XC16X_OPERAND_BIT4 :
190 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT4, (unsigned long *) (& fields->f_op_bit4));
192 case XC16X_OPERAND_BIT8 :
193 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BIT8, (unsigned long *) (& fields->f_op_bit8));
195 case XC16X_OPERAND_BITONE :
196 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_BITONE, (unsigned long *) (& fields->f_op_onebit));
198 case XC16X_OPERAND_CADDR :
201 errmsg = cgen_parse_address (cd, strp, XC16X_OPERAND_CADDR, 0, NULL, & value);
202 fields->f_offset16 = value;
205 case XC16X_OPERAND_COND :
206 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_conditioncode_names, & fields->f_condcode);
208 case XC16X_OPERAND_DATA8 :
209 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_DATA8, (unsigned long *) (& fields->f_data8));
211 case XC16X_OPERAND_DATAHI8 :
212 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_DATAHI8, (unsigned long *) (& fields->f_datahi8));
214 case XC16X_OPERAND_DOT :
215 errmsg = parse_dot (cd, strp, XC16X_OPERAND_DOT, (long *) (& junk));
217 case XC16X_OPERAND_DR :
218 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r1);
220 case XC16X_OPERAND_DRB :
221 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_grb_names, & fields->f_r1);
223 case XC16X_OPERAND_DRI :
224 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r4);
226 case XC16X_OPERAND_EXTCOND :
227 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_extconditioncode_names, & fields->f_extccode);
229 case XC16X_OPERAND_GENREG :
230 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_r8_names, & fields->f_regb8);
232 case XC16X_OPERAND_HASH :
233 errmsg = parse_hash (cd, strp, XC16X_OPERAND_HASH, (long *) (& junk));
235 case XC16X_OPERAND_ICOND :
236 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_conditioncode_names, & fields->f_icondcode);
238 case XC16X_OPERAND_LBIT2 :
239 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_LBIT2, (unsigned long *) (& fields->f_op_lbit2));
241 case XC16X_OPERAND_LBIT4 :
242 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_LBIT4, (unsigned long *) (& fields->f_op_lbit4));
244 case XC16X_OPERAND_MASK8 :
245 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_MASK8, (unsigned long *) (& fields->f_mask8));
247 case XC16X_OPERAND_MASKLO8 :
248 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_MASKLO8, (unsigned long *) (& fields->f_datahi8));
250 case XC16X_OPERAND_MEMGR8 :
251 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_memgr8_names, & fields->f_memgr8);
253 case XC16X_OPERAND_MEMORY :
256 errmsg = cgen_parse_address (cd, strp, XC16X_OPERAND_MEMORY, 0, NULL, & value);
257 fields->f_memory = value;
260 case XC16X_OPERAND_PAG :
261 errmsg = parse_pag (cd, strp, XC16X_OPERAND_PAG, (long *) (& junk));
263 case XC16X_OPERAND_PAGENUM :
264 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_PAGENUM, (unsigned long *) (& fields->f_pagenum));
266 case XC16X_OPERAND_POF :
267 errmsg = parse_pof (cd, strp, XC16X_OPERAND_POF, (long *) (& junk));
269 case XC16X_OPERAND_QBIT :
270 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_QBIT, (unsigned long *) (& fields->f_qbit));
272 case XC16X_OPERAND_QHIBIT :
273 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_QHIBIT, (unsigned long *) (& fields->f_qhibit));
275 case XC16X_OPERAND_QLOBIT :
276 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_QLOBIT, (unsigned long *) (& fields->f_qlobit));
278 case XC16X_OPERAND_REG8 :
279 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_r8_names, & fields->f_reg8);
281 case XC16X_OPERAND_REGB8 :
282 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_grb8_names, & fields->f_regb8);
284 case XC16X_OPERAND_REGBMEM8 :
285 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_regbmem8_names, & fields->f_regmem8);
287 case XC16X_OPERAND_REGHI8 :
288 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_r8_names, & fields->f_reghi8);
290 case XC16X_OPERAND_REGMEM8 :
291 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_regmem8_names, & fields->f_regmem8);
293 case XC16X_OPERAND_REGOFF8 :
294 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_r8_names, & fields->f_regoff8);
296 case XC16X_OPERAND_REL :
297 errmsg = cgen_parse_signed_integer (cd, strp, XC16X_OPERAND_REL, (long *) (& fields->f_rel8));
299 case XC16X_OPERAND_RELHI :
300 errmsg = cgen_parse_signed_integer (cd, strp, XC16X_OPERAND_RELHI, (long *) (& fields->f_relhi8));
302 case XC16X_OPERAND_SEG :
303 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_SEG, (unsigned long *) (& fields->f_seg8));
305 case XC16X_OPERAND_SEGHI8 :
306 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_SEGHI8, (unsigned long *) (& fields->f_segnum8));
308 case XC16X_OPERAND_SEGM :
309 errmsg = parse_seg (cd, strp, XC16X_OPERAND_SEGM, (long *) (& junk));
311 case XC16X_OPERAND_SOF :
312 errmsg = parse_sof (cd, strp, XC16X_OPERAND_SOF, (long *) (& junk));
314 case XC16X_OPERAND_SR :
315 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r2);
317 case XC16X_OPERAND_SR2 :
318 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r0);
320 case XC16X_OPERAND_SRB :
321 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_grb_names, & fields->f_r2);
323 case XC16X_OPERAND_SRC1 :
324 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r1);
326 case XC16X_OPERAND_SRC2 :
327 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_gr_names, & fields->f_r2);
329 case XC16X_OPERAND_SRDIV :
330 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_regdiv8_names, & fields->f_reg8);
332 case XC16X_OPERAND_U4 :
333 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_reg0_name, & fields->f_uimm4);
335 case XC16X_OPERAND_UIMM16 :
336 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UIMM16, (unsigned long *) (& fields->f_uimm16));
338 case XC16X_OPERAND_UIMM2 :
339 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_ext_names, & fields->f_uimm2);
341 case XC16X_OPERAND_UIMM3 :
342 errmsg = cgen_parse_keyword (cd, strp, & xc16x_cgen_opval_reg0_name1, & fields->f_uimm3);
344 case XC16X_OPERAND_UIMM4 :
345 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UIMM4, (unsigned long *) (& fields->f_uimm4));
347 case XC16X_OPERAND_UIMM7 :
348 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UIMM7, (unsigned long *) (& fields->f_uimm7));
350 case XC16X_OPERAND_UIMM8 :
351 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UIMM8, (unsigned long *) (& fields->f_uimm8));
353 case XC16X_OPERAND_UPAG16 :
354 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_UPAG16, (unsigned long *) (& fields->f_uimm16));
356 case XC16X_OPERAND_UPOF16 :
359 errmsg = cgen_parse_address (cd, strp, XC16X_OPERAND_UPOF16, 0, NULL, & value);
360 fields->f_memory = value;
363 case XC16X_OPERAND_USEG16 :
364 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_USEG16, (unsigned long *) (& fields->f_offset16));
366 case XC16X_OPERAND_USEG8 :
367 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_USEG8, (unsigned long *) (& fields->f_seg8));
369 case XC16X_OPERAND_USOF16 :
370 errmsg = cgen_parse_unsigned_integer (cd, strp, XC16X_OPERAND_USOF16, (unsigned long *) (& fields->f_offset16));
374 /* xgettext:c-format */
375 fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex);
382 cgen_parse_fn * const xc16x_cgen_parse_handlers[] =
388 xc16x_cgen_init_asm (CGEN_CPU_DESC cd)
390 xc16x_cgen_init_opcode_table (cd);
391 xc16x_cgen_init_ibld_table (cd);
392 cd->parse_handlers = & xc16x_cgen_parse_handlers[0];
393 cd->parse_operand = xc16x_cgen_parse_operand;
394 #ifdef CGEN_ASM_INIT_HOOK
401 /* Regex construction routine.
403 This translates an opcode syntax string into a regex string,
404 by replacing any non-character syntax element (such as an
405 opcode) with the pattern '.*'
407 It then compiles the regex and stores it in the opcode, for
408 later use by xc16x_cgen_assemble_insn
410 Returns NULL for success, an error message for failure. */
413 xc16x_cgen_build_insn_regex (CGEN_INSN *insn)
415 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
416 const char *mnem = CGEN_INSN_MNEMONIC (insn);
417 char rxbuf[CGEN_MAX_RX_ELEMENTS];
419 const CGEN_SYNTAX_CHAR_TYPE *syn;
422 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
424 /* Mnemonics come first in the syntax string. */
425 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
426 return _("missing mnemonic in syntax string");
429 /* Generate a case sensitive regular expression that emulates case
430 insensitive matching in the "C" locale. We cannot generate a case
431 insensitive regular expression because in Turkish locales, 'i' and 'I'
432 are not equal modulo case conversion. */
434 /* Copy the literal mnemonic out of the insn. */
435 for (; *mnem; mnem++)
450 /* Copy any remaining literals from the syntax string into the rx. */
451 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
453 if (CGEN_SYNTAX_CHAR_P (* syn))
455 char c = CGEN_SYNTAX_CHAR (* syn);
459 /* Escape any regex metacharacters in the syntax. */
460 case '.': case '[': case '\\':
461 case '*': case '^': case '$':
463 #ifdef CGEN_ESCAPE_EXTENDED_REGEX
464 case '?': case '{': case '}':
465 case '(': case ')': case '*':
466 case '|': case '+': case ']':
487 /* Replace non-syntax fields with globs. */
493 /* Trailing whitespace ok. */
500 /* But anchor it after that. */
504 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
505 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
513 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
514 regfree ((regex_t *) CGEN_INSN_RX (insn));
515 free (CGEN_INSN_RX (insn));
516 (CGEN_INSN_RX (insn)) = NULL;
522 /* Default insn parser.
524 The syntax string is scanned and operands are parsed and stored in FIELDS.
525 Relocs are queued as we go via other callbacks.
527 ??? Note that this is currently an all-or-nothing parser. If we fail to
528 parse the instruction, we return 0 and the caller will start over from
529 the beginning. Backtracking will be necessary in parsing subexpressions,
530 but that can be handled there. Not handling backtracking here may get
531 expensive in the case of the m68k. Deal with later.
533 Returns NULL for success, an error message for failure. */
536 parse_insn_normal (CGEN_CPU_DESC cd,
537 const CGEN_INSN *insn,
541 /* ??? Runtime added insns not handled yet. */
542 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
543 const char *str = *strp;
546 const CGEN_SYNTAX_CHAR_TYPE * syn;
547 #ifdef CGEN_MNEMONIC_OPERANDS
552 /* For now we assume the mnemonic is first (there are no leading operands).
553 We can parse it without needing to set up operand parsing.
554 GAS's input scrubber will ensure mnemonics are lowercase, but we may
555 not be called from GAS. */
556 p = CGEN_INSN_MNEMONIC (insn);
557 while (*p && TOLOWER (*p) == TOLOWER (*str))
561 return _("unrecognized instruction");
563 #ifndef CGEN_MNEMONIC_OPERANDS
564 if (* str && ! ISSPACE (* str))
565 return _("unrecognized instruction");
568 CGEN_INIT_PARSE (cd);
569 cgen_init_parse_operand (cd);
570 #ifdef CGEN_MNEMONIC_OPERANDS
574 /* We don't check for (*str != '\0') here because we want to parse
575 any trailing fake arguments in the syntax string. */
576 syn = CGEN_SYNTAX_STRING (syntax);
578 /* Mnemonics come first for now, ensure valid string. */
579 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
586 /* Non operand chars must match exactly. */
587 if (CGEN_SYNTAX_CHAR_P (* syn))
589 /* FIXME: While we allow for non-GAS callers above, we assume the
590 first char after the mnemonic part is a space. */
591 /* FIXME: We also take inappropriate advantage of the fact that
592 GAS's input scrubber will remove extraneous blanks. */
593 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
595 #ifdef CGEN_MNEMONIC_OPERANDS
596 if (CGEN_SYNTAX_CHAR(* syn) == ' ')
604 /* Syntax char didn't match. Can't be this insn. */
605 static char msg [80];
607 /* xgettext:c-format */
608 sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
609 CGEN_SYNTAX_CHAR(*syn), *str);
614 /* Ran out of input. */
615 static char msg [80];
617 /* xgettext:c-format */
618 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
619 CGEN_SYNTAX_CHAR(*syn));
625 #ifdef CGEN_MNEMONIC_OPERANDS
626 (void) past_opcode_p;
628 /* We have an operand of some sort. */
629 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields);
633 /* Done with this operand, continue with next one. */
637 /* If we're at the end of the syntax string, we're done. */
640 /* FIXME: For the moment we assume a valid `str' can only contain
641 blanks now. IE: We needn't try again with a longer version of
642 the insn and it is assumed that longer versions of insns appear
643 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
644 while (ISSPACE (* str))
648 return _("junk at end of line"); /* FIXME: would like to include `str' */
653 /* We couldn't parse it. */
654 return _("unrecognized instruction");
658 This routine is called for each instruction to be assembled.
659 STR points to the insn to be assembled.
660 We assume all necessary tables have been initialized.
661 The assembled instruction, less any fixups, is stored in BUF.
662 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value
663 still needs to be converted to target byte order, otherwise BUF is an array
664 of bytes in target byte order.
665 The result is a pointer to the insn's entry in the opcode table,
666 or NULL if an error occured (an error message will have already been
669 Note that when processing (non-alias) macro-insns,
670 this function recurses.
672 ??? It's possible to make this cpu-independent.
673 One would have to deal with a few minor things.
674 At this point in time doing so would be more of a curiosity than useful
675 [for example this file isn't _that_ big], but keeping the possibility in
676 mind helps keep the design clean. */
679 xc16x_cgen_assemble_insn (CGEN_CPU_DESC cd,
682 CGEN_INSN_BYTES_PTR buf,
686 CGEN_INSN_LIST *ilist;
687 const char *parse_errmsg = NULL;
688 const char *insert_errmsg = NULL;
689 int recognized_mnemonic = 0;
691 /* Skip leading white space. */
692 while (ISSPACE (* str))
695 /* The instructions are stored in hashed lists.
696 Get the first in the list. */
697 ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
699 /* Keep looking until we find a match. */
701 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
703 const CGEN_INSN *insn = ilist->insn;
704 recognized_mnemonic = 1;
706 #ifdef CGEN_VALIDATE_INSN_SUPPORTED
707 /* Not usually needed as unsupported opcodes
708 shouldn't be in the hash lists. */
709 /* Is this insn supported by the selected cpu? */
710 if (! xc16x_cgen_insn_supported (cd, insn))
713 /* If the RELAXED attribute is set, this is an insn that shouldn't be
714 chosen immediately. Instead, it is used during assembler/linker
715 relaxation if possible. */
716 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
721 /* Skip this insn if str doesn't look right lexically. */
722 if (CGEN_INSN_RX (insn) != NULL &&
723 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
726 /* Allow parse/insert handlers to obtain length of insn. */
727 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
729 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
730 if (parse_errmsg != NULL)
733 /* ??? 0 is passed for `pc'. */
734 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
736 if (insert_errmsg != NULL)
739 /* It is up to the caller to actually output the insn and any
745 static char errbuf[150];
746 const char *tmp_errmsg;
747 #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
755 /* If requesting verbose error messages, use insert_errmsg.
756 Failing that, use parse_errmsg. */
757 tmp_errmsg = (insert_errmsg ? insert_errmsg :
758 parse_errmsg ? parse_errmsg :
759 recognized_mnemonic ?
760 _("unrecognized form of instruction") :
761 _("unrecognized instruction"));
763 if (strlen (start) > 50)
764 /* xgettext:c-format */
765 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
767 /* xgettext:c-format */
768 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
772 if (strlen (start) > 50)
773 /* xgettext:c-format */
774 sprintf (errbuf, _("bad instruction `%.50s...'"), start);
776 /* xgettext:c-format */
777 sprintf (errbuf, _("bad instruction `%.50s'"), start);