1 /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
2 /* Assembler interface for targets using CGEN. -*- C -*-
3 CGEN: Cpu tools GENerator
5 THIS FILE IS MACHINE GENERATED WITH CGEN.
6 - the resultant file is machine generated, cgen-asm.in isn't
8 Copyright (C) 1996-2019 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.
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 /* Range checking for signed numbers. Returns 0 if acceptable
54 and 1 if the value is out of bounds for a signed quantity. */
57 signed_out_of_bounds (long val)
59 if ((val < -32768) || (val > 32767))
65 parse_loopsize (CGEN_CPU_DESC cd,
70 signed long * valuep = (signed long *) arg;
72 bfd_reloc_code_real_type code = BFD_RELOC_NONE;
73 enum cgen_parse_operand_result result_type;
76 /* Is it a control transfer instructions? */
77 if (opindex == (CGEN_OPERAND_TYPE) MT_OPERAND_LOOPSIZE)
79 code = BFD_RELOC_MT_PCINSN8;
80 errmsg = cgen_parse_address (cd, strp, opindex, code,
81 & result_type, & value);
90 parse_imm16 (CGEN_CPU_DESC cd,
95 signed long * valuep = (signed long *) arg;
97 enum cgen_parse_operand_result result_type;
98 bfd_reloc_code_real_type code = BFD_RELOC_NONE;
101 /* Is it a control transfer instructions? */
102 if (opindex == (CGEN_OPERAND_TYPE) MT_OPERAND_IMM16O)
104 code = BFD_RELOC_16_PCREL;
105 errmsg = cgen_parse_address (cd, strp, opindex, code,
106 & result_type, & value);
109 if (signed_out_of_bounds (value))
110 errmsg = _("Operand out of range. Must be between -32768 and 32767.");
116 /* If it's not a control transfer instruction, then
117 we have to check for %OP relocating operators. */
118 if (opindex == (CGEN_OPERAND_TYPE) MT_OPERAND_IMM16L)
120 else if (strncmp (*strp, "%hi16", 5) == 0)
123 code = BFD_RELOC_HI16;
125 else if (strncmp (*strp, "%lo16", 5) == 0)
128 code = BFD_RELOC_LO16;
131 /* If we found a %OP relocating operator, then parse it as an address.
132 If not, we need to parse it as an integer, either signed or unsigned
133 depending on which operand type we have. */
134 if (code != BFD_RELOC_NONE)
136 /* %OP relocating operator found. */
137 errmsg = cgen_parse_address (cd, strp, opindex, code,
138 & result_type, & value);
143 case (CGEN_PARSE_OPERAND_RESULT_NUMBER):
144 if (code == BFD_RELOC_HI16)
145 value = (value >> 16) & 0xFFFF;
146 else if (code == BFD_RELOC_LO16)
147 value = value & 0xFFFF;
149 errmsg = _("Biiiig Trouble in parse_imm16!");
152 case (CGEN_PARSE_OPERAND_RESULT_QUEUED):
153 /* No special processing for this case. */
157 errmsg = _("The percent-operator's operand is not a symbol");
165 /* Parse hex values like 0xffff as unsigned, and sign extend
167 int parse_signed = (opindex == (CGEN_OPERAND_TYPE)MT_OPERAND_IMM16);
169 if ((*strp)[0] == '0'
170 && ((*strp)[1] == 'x' || (*strp)[1] == 'X'))
173 /* No relocating operator. Parse as an number. */
176 /* Parse as as signed integer. */
178 errmsg = cgen_parse_signed_integer (cd, strp, opindex, valuep);
183 /* Manual range checking is needed for the signed case. */
184 if (*valuep & 0x8000)
185 value = 0xffff0000 | *valuep;
189 if (signed_out_of_bounds (value))
190 errmsg = _("Operand out of range. Must be between -32768 and 32767.");
191 /* Truncate to 16 bits. This is necessary
192 because cgen will have sign extended *valuep. */
199 /* MT_OPERAND_IMM16Z. Parse as an unsigned integer. */
200 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, (unsigned long *) valuep);
202 if (opindex == (CGEN_OPERAND_TYPE) MT_OPERAND_IMM16
204 && *valuep <= 0xffff)
214 parse_dup (CGEN_CPU_DESC cd,
217 unsigned long *valuep)
219 const char *errmsg = NULL;
221 if (strncmp (*strp, "dup", 3) == 0 || strncmp (*strp, "DUP", 3) == 0)
226 else if (strncmp (*strp, "xx", 2) == 0 || strncmp (*strp, "XX", 2) == 0)
232 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
239 parse_ball (CGEN_CPU_DESC cd,
242 unsigned long *valuep)
244 const char *errmsg = NULL;
246 if (strncmp (*strp, "all", 3) == 0 || strncmp (*strp, "ALL", 3) == 0)
251 else if (strncmp (*strp, "one", 3) == 0 || strncmp (*strp, "ONE", 3) == 0)
257 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
263 parse_xmode (CGEN_CPU_DESC cd,
266 unsigned long *valuep)
268 const char *errmsg = NULL;
270 if (strncmp (*strp, "pm", 2) == 0 || strncmp (*strp, "PM", 2) == 0)
275 else if (strncmp (*strp, "xm", 2) == 0 || strncmp (*strp, "XM", 2) == 0)
281 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
287 parse_rc (CGEN_CPU_DESC cd,
290 unsigned long *valuep)
292 const char *errmsg = NULL;
294 if (strncmp (*strp, "r", 1) == 0 || strncmp (*strp, "R", 1) == 0)
299 else if (strncmp (*strp, "c", 1) == 0 || strncmp (*strp, "C", 1) == 0)
305 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
311 parse_cbrb (CGEN_CPU_DESC cd,
314 unsigned long *valuep)
316 const char *errmsg = NULL;
318 if (strncmp (*strp, "rb", 2) == 0 || strncmp (*strp, "RB", 2) == 0)
323 else if (strncmp (*strp, "cb", 2) == 0 || strncmp (*strp, "CB", 2) == 0)
329 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
335 parse_rbbc (CGEN_CPU_DESC cd,
338 unsigned long *valuep)
340 const char *errmsg = NULL;
342 if (strncmp (*strp, "rt", 2) == 0 || strncmp (*strp, "RT", 2) == 0)
347 else if (strncmp (*strp, "br1", 3) == 0 || strncmp (*strp, "BR1", 3) == 0)
352 else if (strncmp (*strp, "br2", 3) == 0 || strncmp (*strp, "BR2", 3) == 0)
357 else if (strncmp (*strp, "cs", 2) == 0 || strncmp (*strp, "CS", 2) == 0)
363 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
369 parse_type (CGEN_CPU_DESC cd,
372 unsigned long *valuep)
374 const char *errmsg = NULL;
376 if (strncmp (*strp, "odd", 3) == 0 || strncmp (*strp, "ODD", 3) == 0)
381 else if (strncmp (*strp, "even", 4) == 0 || strncmp (*strp, "EVEN", 4) == 0)
386 else if (strncmp (*strp, "oe", 2) == 0 || strncmp (*strp, "OE", 2) == 0)
392 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
394 if ((errmsg == NULL) && (*valuep == 3))
395 errmsg = _("invalid operand. type may have values 0,1,2 only.");
402 const char * mt_cgen_parse_operand
403 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
405 /* Main entry point for operand parsing.
407 This function is basically just a big switch statement. Earlier versions
408 used tables to look up the function to use, but
409 - if the table contains both assembler and disassembler functions then
410 the disassembler contains much of the assembler and vice-versa,
411 - there's a lot of inlining possibilities as things grow,
412 - using a switch statement avoids the function call overhead.
414 This function could be moved into `parse_insn_normal', but keeping it
415 separate makes clear the interface between `parse_insn_normal' and each of
419 mt_cgen_parse_operand (CGEN_CPU_DESC cd,
422 CGEN_FIELDS * fields)
424 const char * errmsg = NULL;
425 /* Used by scalar operands that still need to be parsed. */
426 long junk ATTRIBUTE_UNUSED;
430 case MT_OPERAND_A23 :
431 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_A23, (unsigned long *) (& fields->f_a23));
433 case MT_OPERAND_BALL :
434 errmsg = parse_ball (cd, strp, MT_OPERAND_BALL, (unsigned long *) (& fields->f_ball));
436 case MT_OPERAND_BALL2 :
437 errmsg = parse_ball (cd, strp, MT_OPERAND_BALL2, (unsigned long *) (& fields->f_ball2));
439 case MT_OPERAND_BANKADDR :
440 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_BANKADDR, (unsigned long *) (& fields->f_bankaddr));
442 case MT_OPERAND_BRC :
443 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_BRC, (unsigned long *) (& fields->f_brc));
445 case MT_OPERAND_BRC2 :
446 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_BRC2, (unsigned long *) (& fields->f_brc2));
448 case MT_OPERAND_CB1INCR :
449 errmsg = cgen_parse_signed_integer (cd, strp, MT_OPERAND_CB1INCR, (long *) (& fields->f_cb1incr));
451 case MT_OPERAND_CB1SEL :
452 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CB1SEL, (unsigned long *) (& fields->f_cb1sel));
454 case MT_OPERAND_CB2INCR :
455 errmsg = cgen_parse_signed_integer (cd, strp, MT_OPERAND_CB2INCR, (long *) (& fields->f_cb2incr));
457 case MT_OPERAND_CB2SEL :
458 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CB2SEL, (unsigned long *) (& fields->f_cb2sel));
460 case MT_OPERAND_CBRB :
461 errmsg = parse_cbrb (cd, strp, MT_OPERAND_CBRB, (unsigned long *) (& fields->f_cbrb));
463 case MT_OPERAND_CBS :
464 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CBS, (unsigned long *) (& fields->f_cbs));
466 case MT_OPERAND_CBX :
467 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CBX, (unsigned long *) (& fields->f_cbx));
469 case MT_OPERAND_CCB :
470 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CCB, (unsigned long *) (& fields->f_ccb));
472 case MT_OPERAND_CDB :
473 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CDB, (unsigned long *) (& fields->f_cdb));
475 case MT_OPERAND_CELL :
476 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CELL, (unsigned long *) (& fields->f_cell));
478 case MT_OPERAND_COLNUM :
479 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_COLNUM, (unsigned long *) (& fields->f_colnum));
481 case MT_OPERAND_CONTNUM :
482 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CONTNUM, (unsigned long *) (& fields->f_contnum));
485 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CR, (unsigned long *) (& fields->f_cr));
487 case MT_OPERAND_CTXDISP :
488 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_CTXDISP, (unsigned long *) (& fields->f_ctxdisp));
490 case MT_OPERAND_DUP :
491 errmsg = parse_dup (cd, strp, MT_OPERAND_DUP, (unsigned long *) (& fields->f_dup));
493 case MT_OPERAND_FBDISP :
494 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_FBDISP, (unsigned long *) (& fields->f_fbdisp));
496 case MT_OPERAND_FBINCR :
497 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_FBINCR, (unsigned long *) (& fields->f_fbincr));
499 case MT_OPERAND_FRDR :
500 errmsg = cgen_parse_keyword (cd, strp, & mt_cgen_opval_h_spr, & fields->f_dr);
502 case MT_OPERAND_FRDRRR :
503 errmsg = cgen_parse_keyword (cd, strp, & mt_cgen_opval_h_spr, & fields->f_drrr);
505 case MT_OPERAND_FRSR1 :
506 errmsg = cgen_parse_keyword (cd, strp, & mt_cgen_opval_h_spr, & fields->f_sr1);
508 case MT_OPERAND_FRSR2 :
509 errmsg = cgen_parse_keyword (cd, strp, & mt_cgen_opval_h_spr, & fields->f_sr2);
512 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_ID, (unsigned long *) (& fields->f_id));
514 case MT_OPERAND_IMM16 :
515 errmsg = parse_imm16 (cd, strp, MT_OPERAND_IMM16, (long *) (& fields->f_imm16s));
517 case MT_OPERAND_IMM16L :
518 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_IMM16L, (unsigned long *) (& fields->f_imm16l));
520 case MT_OPERAND_IMM16O :
521 errmsg = parse_imm16 (cd, strp, MT_OPERAND_IMM16O, (unsigned long *) (& fields->f_imm16s));
523 case MT_OPERAND_IMM16Z :
524 errmsg = parse_imm16 (cd, strp, MT_OPERAND_IMM16Z, (unsigned long *) (& fields->f_imm16u));
526 case MT_OPERAND_INCAMT :
527 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_INCAMT, (unsigned long *) (& fields->f_incamt));
529 case MT_OPERAND_INCR :
530 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_INCR, (unsigned long *) (& fields->f_incr));
532 case MT_OPERAND_LENGTH :
533 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_LENGTH, (unsigned long *) (& fields->f_length));
535 case MT_OPERAND_LOOPSIZE :
536 errmsg = parse_loopsize (cd, strp, MT_OPERAND_LOOPSIZE, (unsigned long *) (& fields->f_loopo));
538 case MT_OPERAND_MASK :
539 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_MASK, (unsigned long *) (& fields->f_mask));
541 case MT_OPERAND_MASK1 :
542 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_MASK1, (unsigned long *) (& fields->f_mask1));
544 case MT_OPERAND_MODE :
545 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_MODE, (unsigned long *) (& fields->f_mode));
547 case MT_OPERAND_PERM :
548 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_PERM, (unsigned long *) (& fields->f_perm));
550 case MT_OPERAND_RBBC :
551 errmsg = parse_rbbc (cd, strp, MT_OPERAND_RBBC, (unsigned long *) (& fields->f_rbbc));
554 errmsg = parse_rc (cd, strp, MT_OPERAND_RC, (unsigned long *) (& fields->f_rc));
556 case MT_OPERAND_RC1 :
557 errmsg = parse_rc (cd, strp, MT_OPERAND_RC1, (unsigned long *) (& fields->f_rc1));
559 case MT_OPERAND_RC2 :
560 errmsg = parse_rc (cd, strp, MT_OPERAND_RC2, (unsigned long *) (& fields->f_rc2));
562 case MT_OPERAND_RC3 :
563 errmsg = parse_rc (cd, strp, MT_OPERAND_RC3, (unsigned long *) (& fields->f_rc3));
565 case MT_OPERAND_RCNUM :
566 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_RCNUM, (unsigned long *) (& fields->f_rcnum));
568 case MT_OPERAND_RDA :
569 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_RDA, (unsigned long *) (& fields->f_rda));
571 case MT_OPERAND_ROWNUM :
572 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_ROWNUM, (unsigned long *) (& fields->f_rownum));
574 case MT_OPERAND_ROWNUM1 :
575 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_ROWNUM1, (unsigned long *) (& fields->f_rownum1));
577 case MT_OPERAND_ROWNUM2 :
578 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_ROWNUM2, (unsigned long *) (& fields->f_rownum2));
580 case MT_OPERAND_SIZE :
581 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_SIZE, (unsigned long *) (& fields->f_size));
583 case MT_OPERAND_TYPE :
584 errmsg = parse_type (cd, strp, MT_OPERAND_TYPE, (unsigned long *) (& fields->f_type));
587 errmsg = cgen_parse_unsigned_integer (cd, strp, MT_OPERAND_WR, (unsigned long *) (& fields->f_wr));
589 case MT_OPERAND_XMODE :
590 errmsg = parse_xmode (cd, strp, MT_OPERAND_XMODE, (unsigned long *) (& fields->f_xmode));
594 /* xgettext:c-format */
595 opcodes_error_handler
596 (_("internal error: unrecognized field %d while parsing"),
604 cgen_parse_fn * const mt_cgen_parse_handlers[] =
610 mt_cgen_init_asm (CGEN_CPU_DESC cd)
612 mt_cgen_init_opcode_table (cd);
613 mt_cgen_init_ibld_table (cd);
614 cd->parse_handlers = & mt_cgen_parse_handlers[0];
615 cd->parse_operand = mt_cgen_parse_operand;
616 #ifdef CGEN_ASM_INIT_HOOK
623 /* Regex construction routine.
625 This translates an opcode syntax string into a regex string,
626 by replacing any non-character syntax element (such as an
627 opcode) with the pattern '.*'
629 It then compiles the regex and stores it in the opcode, for
630 later use by mt_cgen_assemble_insn
632 Returns NULL for success, an error message for failure. */
635 mt_cgen_build_insn_regex (CGEN_INSN *insn)
637 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
638 const char *mnem = CGEN_INSN_MNEMONIC (insn);
639 char rxbuf[CGEN_MAX_RX_ELEMENTS];
641 const CGEN_SYNTAX_CHAR_TYPE *syn;
644 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
646 /* Mnemonics come first in the syntax string. */
647 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
648 return _("missing mnemonic in syntax string");
651 /* Generate a case sensitive regular expression that emulates case
652 insensitive matching in the "C" locale. We cannot generate a case
653 insensitive regular expression because in Turkish locales, 'i' and 'I'
654 are not equal modulo case conversion. */
656 /* Copy the literal mnemonic out of the insn. */
657 for (; *mnem; mnem++)
672 /* Copy any remaining literals from the syntax string into the rx. */
673 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
675 if (CGEN_SYNTAX_CHAR_P (* syn))
677 char c = CGEN_SYNTAX_CHAR (* syn);
681 /* Escape any regex metacharacters in the syntax. */
682 case '.': case '[': case '\\':
683 case '*': case '^': case '$':
685 #ifdef CGEN_ESCAPE_EXTENDED_REGEX
686 case '?': case '{': case '}':
687 case '(': case ')': case '*':
688 case '|': case '+': case ']':
709 /* Replace non-syntax fields with globs. */
715 /* Trailing whitespace ok. */
722 /* But anchor it after that. */
726 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
727 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
735 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
736 regfree ((regex_t *) CGEN_INSN_RX (insn));
737 free (CGEN_INSN_RX (insn));
738 (CGEN_INSN_RX (insn)) = NULL;
744 /* Default insn parser.
746 The syntax string is scanned and operands are parsed and stored in FIELDS.
747 Relocs are queued as we go via other callbacks.
749 ??? Note that this is currently an all-or-nothing parser. If we fail to
750 parse the instruction, we return 0 and the caller will start over from
751 the beginning. Backtracking will be necessary in parsing subexpressions,
752 but that can be handled there. Not handling backtracking here may get
753 expensive in the case of the m68k. Deal with later.
755 Returns NULL for success, an error message for failure. */
758 parse_insn_normal (CGEN_CPU_DESC cd,
759 const CGEN_INSN *insn,
763 /* ??? Runtime added insns not handled yet. */
764 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
765 const char *str = *strp;
768 const CGEN_SYNTAX_CHAR_TYPE * syn;
769 #ifdef CGEN_MNEMONIC_OPERANDS
774 /* For now we assume the mnemonic is first (there are no leading operands).
775 We can parse it without needing to set up operand parsing.
776 GAS's input scrubber will ensure mnemonics are lowercase, but we may
777 not be called from GAS. */
778 p = CGEN_INSN_MNEMONIC (insn);
779 while (*p && TOLOWER (*p) == TOLOWER (*str))
783 return _("unrecognized instruction");
785 #ifndef CGEN_MNEMONIC_OPERANDS
786 if (* str && ! ISSPACE (* str))
787 return _("unrecognized instruction");
790 CGEN_INIT_PARSE (cd);
791 cgen_init_parse_operand (cd);
792 #ifdef CGEN_MNEMONIC_OPERANDS
796 /* We don't check for (*str != '\0') here because we want to parse
797 any trailing fake arguments in the syntax string. */
798 syn = CGEN_SYNTAX_STRING (syntax);
800 /* Mnemonics come first for now, ensure valid string. */
801 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
808 /* Non operand chars must match exactly. */
809 if (CGEN_SYNTAX_CHAR_P (* syn))
811 /* FIXME: While we allow for non-GAS callers above, we assume the
812 first char after the mnemonic part is a space. */
813 /* FIXME: We also take inappropriate advantage of the fact that
814 GAS's input scrubber will remove extraneous blanks. */
815 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
817 #ifdef CGEN_MNEMONIC_OPERANDS
818 if (CGEN_SYNTAX_CHAR(* syn) == ' ')
826 /* Syntax char didn't match. Can't be this insn. */
827 static char msg [80];
829 /* xgettext:c-format */
830 sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
831 CGEN_SYNTAX_CHAR(*syn), *str);
836 /* Ran out of input. */
837 static char msg [80];
839 /* xgettext:c-format */
840 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
841 CGEN_SYNTAX_CHAR(*syn));
847 #ifdef CGEN_MNEMONIC_OPERANDS
848 (void) past_opcode_p;
850 /* We have an operand of some sort. */
851 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields);
855 /* Done with this operand, continue with next one. */
859 /* If we're at the end of the syntax string, we're done. */
862 /* FIXME: For the moment we assume a valid `str' can only contain
863 blanks now. IE: We needn't try again with a longer version of
864 the insn and it is assumed that longer versions of insns appear
865 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
866 while (ISSPACE (* str))
870 return _("junk at end of line"); /* FIXME: would like to include `str' */
875 /* We couldn't parse it. */
876 return _("unrecognized instruction");
880 This routine is called for each instruction to be assembled.
881 STR points to the insn to be assembled.
882 We assume all necessary tables have been initialized.
883 The assembled instruction, less any fixups, is stored in BUF.
884 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value
885 still needs to be converted to target byte order, otherwise BUF is an array
886 of bytes in target byte order.
887 The result is a pointer to the insn's entry in the opcode table,
888 or NULL if an error occured (an error message will have already been
891 Note that when processing (non-alias) macro-insns,
892 this function recurses.
894 ??? It's possible to make this cpu-independent.
895 One would have to deal with a few minor things.
896 At this point in time doing so would be more of a curiosity than useful
897 [for example this file isn't _that_ big], but keeping the possibility in
898 mind helps keep the design clean. */
901 mt_cgen_assemble_insn (CGEN_CPU_DESC cd,
904 CGEN_INSN_BYTES_PTR buf,
908 CGEN_INSN_LIST *ilist;
909 const char *parse_errmsg = NULL;
910 const char *insert_errmsg = NULL;
911 int recognized_mnemonic = 0;
913 /* Skip leading white space. */
914 while (ISSPACE (* str))
917 /* The instructions are stored in hashed lists.
918 Get the first in the list. */
919 ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
921 /* Keep looking until we find a match. */
923 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
925 const CGEN_INSN *insn = ilist->insn;
926 recognized_mnemonic = 1;
928 #ifdef CGEN_VALIDATE_INSN_SUPPORTED
929 /* Not usually needed as unsupported opcodes
930 shouldn't be in the hash lists. */
931 /* Is this insn supported by the selected cpu? */
932 if (! mt_cgen_insn_supported (cd, insn))
935 /* If the RELAXED attribute is set, this is an insn that shouldn't be
936 chosen immediately. Instead, it is used during assembler/linker
937 relaxation if possible. */
938 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
943 /* Skip this insn if str doesn't look right lexically. */
944 if (CGEN_INSN_RX (insn) != NULL &&
945 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
948 /* Allow parse/insert handlers to obtain length of insn. */
949 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
951 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
952 if (parse_errmsg != NULL)
955 /* ??? 0 is passed for `pc'. */
956 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
958 if (insert_errmsg != NULL)
961 /* It is up to the caller to actually output the insn and any
967 static char errbuf[150];
968 const char *tmp_errmsg;
969 #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
977 /* If requesting verbose error messages, use insert_errmsg.
978 Failing that, use parse_errmsg. */
979 tmp_errmsg = (insert_errmsg ? insert_errmsg :
980 parse_errmsg ? parse_errmsg :
981 recognized_mnemonic ?
982 _("unrecognized form of instruction") :
983 _("unrecognized instruction"));
985 if (strlen (start) > 50)
986 /* xgettext:c-format */
987 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
989 /* xgettext:c-format */
990 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
994 if (strlen (start) > 50)
995 /* xgettext:c-format */
996 sprintf (errbuf, _("bad instruction `%.50s...'"), start);
998 /* xgettext:c-format */
999 sprintf (errbuf, _("bad instruction `%.50s'"), start);