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[binutils.git] / opcodes / xstormy16-asm.c
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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)
15 any later version.
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.
28 Keep that in mind. */
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"
42 #undef min
43 #define min(a,b) ((a) < (b) ? (a) : (b))
44 #undef max
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. */
52 /* -- asm.c */
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. */
60 static const char *
61 parse_mem8 (CGEN_CPU_DESC cd,
62 const char **strp,
63 int opindex,
64 unsigned long *valuep)
66 if (**strp == '(')
68 const char *s = *strp;
70 if (s[1] == '-' && s[2] == '-')
71 return _("Bad register in preincrement");
73 while (ISALNUM (*++s))
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");
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");
90 return cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
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. */
98 static const char *
99 parse_small_immediate (CGEN_CPU_DESC cd,
100 const char **strp,
101 int opindex,
102 unsigned long *valuep)
104 bfd_vma value;
105 enum cgen_parse_operand_result result;
106 const char *errmsg;
108 if (**strp == '@')
109 return _("No relocation for small immediate");
111 errmsg = (* cd->parse_operand_fn)
112 (cd, CGEN_PARSE_OPERAND_INTEGER, strp, opindex, BFD_RELOC_NONE,
113 & result, & value);
115 if (errmsg)
116 return errmsg;
118 if (result != CGEN_PARSE_OPERAND_RESULT_NUMBER)
119 return _("Small operand was not an immediate number");
121 *valuep = value;
122 return NULL;
125 /* Literal scan be either a normal literal, a @hi() or @lo relocation. */
127 static const char *
128 parse_immediate16 (CGEN_CPU_DESC cd,
129 const char **strp,
130 int opindex,
131 unsigned long *valuep)
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;
138 if (strncmp (*strp, "@hi(", 4) == 0)
140 *strp += 4;
141 code = BFD_RELOC_HI16;
143 else
144 if (strncmp (*strp, "@lo(", 4) == 0)
146 *strp += 4;
147 code = BFD_RELOC_LO16;
150 if (code == BFD_RELOC_NONE)
151 errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
152 else
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");
159 *valuep = value;
160 if ((code == BFD_RELOC_HI16 || code == BFD_RELOC_LO16)
161 && **strp == ')')
162 *strp += 1;
163 else
165 errmsg = _("Syntax error: No trailing ')'");
166 return errmsg;
169 return errmsg;
171 /* -- */
173 const char * xstormy16_cgen_parse_operand
174 (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
176 /* Main entry point for operand parsing.
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.
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. */
189 const char *
190 xstormy16_cgen_parse_operand (CGEN_CPU_DESC cd,
191 int opindex,
192 const char ** strp,
193 CGEN_FIELDS * fields)
195 const char * errmsg = NULL;
196 /* Used by scalar operands that still need to be parsed. */
197 long junk ATTRIBUTE_UNUSED;
199 switch (opindex)
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;
274 default :
275 /* xgettext:c-format */
276 fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex);
277 abort ();
280 return errmsg;
283 cgen_parse_fn * const xstormy16_cgen_parse_handlers[] =
285 parse_insn_normal,
288 void
289 xstormy16_cgen_init_asm (CGEN_CPU_DESC cd)
291 xstormy16_cgen_init_opcode_table (cd);
292 xstormy16_cgen_init_ibld_table (cd);
293 cd->parse_handlers = & xstormy16_cgen_parse_handlers[0];
294 cd->parse_operand = xstormy16_cgen_parse_operand;
295 #ifdef CGEN_ASM_INIT_HOOK
296 CGEN_ASM_INIT_HOOK
297 #endif
302 /* Regex construction routine.
304 This translates an opcode syntax string into a regex string,
305 by replacing any non-character syntax element (such as an
306 opcode) with the pattern '.*'
308 It then compiles the regex and stores it in the opcode, for
309 later use by xstormy16_cgen_assemble_insn
311 Returns NULL for success, an error message for failure. */
313 char *
314 xstormy16_cgen_build_insn_regex (CGEN_INSN *insn)
316 CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
317 const char *mnem = CGEN_INSN_MNEMONIC (insn);
318 char rxbuf[CGEN_MAX_RX_ELEMENTS];
319 char *rx = rxbuf;
320 const CGEN_SYNTAX_CHAR_TYPE *syn;
321 int reg_err;
323 syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
325 /* Mnemonics come first in the syntax string. */
326 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
327 return _("missing mnemonic in syntax string");
328 ++syn;
330 /* Generate a case sensitive regular expression that emulates case
331 insensitive matching in the "C" locale. We cannot generate a case
332 insensitive regular expression because in Turkish locales, 'i' and 'I'
333 are not equal modulo case conversion. */
335 /* Copy the literal mnemonic out of the insn. */
336 for (; *mnem; mnem++)
338 char c = *mnem;
340 if (ISALPHA (c))
342 *rx++ = '[';
343 *rx++ = TOLOWER (c);
344 *rx++ = TOUPPER (c);
345 *rx++ = ']';
347 else
348 *rx++ = c;
351 /* Copy any remaining literals from the syntax string into the rx. */
352 for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
354 if (CGEN_SYNTAX_CHAR_P (* syn))
356 char c = CGEN_SYNTAX_CHAR (* syn);
358 switch (c)
360 /* Escape any regex metacharacters in the syntax. */
361 case '.': case '[': case '\\':
362 case '*': case '^': case '$':
364 #ifdef CGEN_ESCAPE_EXTENDED_REGEX
365 case '?': case '{': case '}':
366 case '(': case ')': case '*':
367 case '|': case '+': case ']':
368 #endif
369 *rx++ = '\\';
370 *rx++ = c;
371 break;
373 default:
374 if (ISALPHA (c))
376 *rx++ = '[';
377 *rx++ = TOLOWER (c);
378 *rx++ = TOUPPER (c);
379 *rx++ = ']';
381 else
382 *rx++ = c;
383 break;
386 else
388 /* Replace non-syntax fields with globs. */
389 *rx++ = '.';
390 *rx++ = '*';
394 /* Trailing whitespace ok. */
395 * rx++ = '[';
396 * rx++ = ' ';
397 * rx++ = '\t';
398 * rx++ = ']';
399 * rx++ = '*';
401 /* But anchor it after that. */
402 * rx++ = '$';
403 * rx = '\0';
405 CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
406 reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
408 if (reg_err == 0)
409 return NULL;
410 else
412 static char msg[80];
414 regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
415 regfree ((regex_t *) CGEN_INSN_RX (insn));
416 free (CGEN_INSN_RX (insn));
417 (CGEN_INSN_RX (insn)) = NULL;
418 return msg;
423 /* Default insn parser.
425 The syntax string is scanned and operands are parsed and stored in FIELDS.
426 Relocs are queued as we go via other callbacks.
428 ??? Note that this is currently an all-or-nothing parser. If we fail to
429 parse the instruction, we return 0 and the caller will start over from
430 the beginning. Backtracking will be necessary in parsing subexpressions,
431 but that can be handled there. Not handling backtracking here may get
432 expensive in the case of the m68k. Deal with later.
434 Returns NULL for success, an error message for failure. */
436 static const char *
437 parse_insn_normal (CGEN_CPU_DESC cd,
438 const CGEN_INSN *insn,
439 const char **strp,
440 CGEN_FIELDS *fields)
442 /* ??? Runtime added insns not handled yet. */
443 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
444 const char *str = *strp;
445 const char *errmsg;
446 const char *p;
447 const CGEN_SYNTAX_CHAR_TYPE * syn;
448 #ifdef CGEN_MNEMONIC_OPERANDS
449 /* FIXME: wip */
450 int past_opcode_p;
451 #endif
453 /* For now we assume the mnemonic is first (there are no leading operands).
454 We can parse it without needing to set up operand parsing.
455 GAS's input scrubber will ensure mnemonics are lowercase, but we may
456 not be called from GAS. */
457 p = CGEN_INSN_MNEMONIC (insn);
458 while (*p && TOLOWER (*p) == TOLOWER (*str))
459 ++p, ++str;
461 if (* p)
462 return _("unrecognized instruction");
464 #ifndef CGEN_MNEMONIC_OPERANDS
465 if (* str && ! ISSPACE (* str))
466 return _("unrecognized instruction");
467 #endif
469 CGEN_INIT_PARSE (cd);
470 cgen_init_parse_operand (cd);
471 #ifdef CGEN_MNEMONIC_OPERANDS
472 past_opcode_p = 0;
473 #endif
475 /* We don't check for (*str != '\0') here because we want to parse
476 any trailing fake arguments in the syntax string. */
477 syn = CGEN_SYNTAX_STRING (syntax);
479 /* Mnemonics come first for now, ensure valid string. */
480 if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
481 abort ();
483 ++syn;
485 while (* syn != 0)
487 /* Non operand chars must match exactly. */
488 if (CGEN_SYNTAX_CHAR_P (* syn))
490 /* FIXME: While we allow for non-GAS callers above, we assume the
491 first char after the mnemonic part is a space. */
492 /* FIXME: We also take inappropriate advantage of the fact that
493 GAS's input scrubber will remove extraneous blanks. */
494 if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
496 #ifdef CGEN_MNEMONIC_OPERANDS
497 if (CGEN_SYNTAX_CHAR(* syn) == ' ')
498 past_opcode_p = 1;
499 #endif
500 ++ syn;
501 ++ str;
503 else if (*str)
505 /* Syntax char didn't match. Can't be this insn. */
506 static char msg [80];
508 /* xgettext:c-format */
509 sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
510 CGEN_SYNTAX_CHAR(*syn), *str);
511 return msg;
513 else
515 /* Ran out of input. */
516 static char msg [80];
518 /* xgettext:c-format */
519 sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
520 CGEN_SYNTAX_CHAR(*syn));
521 return msg;
523 continue;
526 #ifdef CGEN_MNEMONIC_OPERANDS
527 (void) past_opcode_p;
528 #endif
529 /* We have an operand of some sort. */
530 errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields);
531 if (errmsg)
532 return errmsg;
534 /* Done with this operand, continue with next one. */
535 ++ syn;
538 /* If we're at the end of the syntax string, we're done. */
539 if (* syn == 0)
541 /* FIXME: For the moment we assume a valid `str' can only contain
542 blanks now. IE: We needn't try again with a longer version of
543 the insn and it is assumed that longer versions of insns appear
544 before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
545 while (ISSPACE (* str))
546 ++ str;
548 if (* str != '\0')
549 return _("junk at end of line"); /* FIXME: would like to include `str' */
551 return NULL;
554 /* We couldn't parse it. */
555 return _("unrecognized instruction");
558 /* Main entry point.
559 This routine is called for each instruction to be assembled.
560 STR points to the insn to be assembled.
561 We assume all necessary tables have been initialized.
562 The assembled instruction, less any fixups, is stored in BUF.
563 Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value
564 still needs to be converted to target byte order, otherwise BUF is an array
565 of bytes in target byte order.
566 The result is a pointer to the insn's entry in the opcode table,
567 or NULL if an error occured (an error message will have already been
568 printed).
570 Note that when processing (non-alias) macro-insns,
571 this function recurses.
573 ??? It's possible to make this cpu-independent.
574 One would have to deal with a few minor things.
575 At this point in time doing so would be more of a curiosity than useful
576 [for example this file isn't _that_ big], but keeping the possibility in
577 mind helps keep the design clean. */
579 const CGEN_INSN *
580 xstormy16_cgen_assemble_insn (CGEN_CPU_DESC cd,
581 const char *str,
582 CGEN_FIELDS *fields,
583 CGEN_INSN_BYTES_PTR buf,
584 char **errmsg)
586 const char *start;
587 CGEN_INSN_LIST *ilist;
588 const char *parse_errmsg = NULL;
589 const char *insert_errmsg = NULL;
590 int recognized_mnemonic = 0;
592 /* Skip leading white space. */
593 while (ISSPACE (* str))
594 ++ str;
596 /* The instructions are stored in hashed lists.
597 Get the first in the list. */
598 ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
600 /* Keep looking until we find a match. */
601 start = str;
602 for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
604 const CGEN_INSN *insn = ilist->insn;
605 recognized_mnemonic = 1;
607 #ifdef CGEN_VALIDATE_INSN_SUPPORTED
608 /* Not usually needed as unsupported opcodes
609 shouldn't be in the hash lists. */
610 /* Is this insn supported by the selected cpu? */
611 if (! xstormy16_cgen_insn_supported (cd, insn))
612 continue;
613 #endif
614 /* If the RELAXED attribute is set, this is an insn that shouldn't be
615 chosen immediately. Instead, it is used during assembler/linker
616 relaxation if possible. */
617 if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
618 continue;
620 str = start;
622 /* Skip this insn if str doesn't look right lexically. */
623 if (CGEN_INSN_RX (insn) != NULL &&
624 regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
625 continue;
627 /* Allow parse/insert handlers to obtain length of insn. */
628 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
630 parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
631 if (parse_errmsg != NULL)
632 continue;
634 /* ??? 0 is passed for `pc'. */
635 insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
636 (bfd_vma) 0);
637 if (insert_errmsg != NULL)
638 continue;
640 /* It is up to the caller to actually output the insn and any
641 queued relocs. */
642 return insn;
646 static char errbuf[150];
647 const char *tmp_errmsg;
648 #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
649 #define be_verbose 1
650 #else
651 #define be_verbose 0
652 #endif
654 if (be_verbose)
656 /* If requesting verbose error messages, use insert_errmsg.
657 Failing that, use parse_errmsg. */
658 tmp_errmsg = (insert_errmsg ? insert_errmsg :
659 parse_errmsg ? parse_errmsg :
660 recognized_mnemonic ?
661 _("unrecognized form of instruction") :
662 _("unrecognized instruction"));
664 if (strlen (start) > 50)
665 /* xgettext:c-format */
666 sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
667 else
668 /* xgettext:c-format */
669 sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
671 else
673 if (strlen (start) > 50)
674 /* xgettext:c-format */
675 sprintf (errbuf, _("bad instruction `%.50s...'"), start);
676 else
677 /* xgettext:c-format */
678 sprintf (errbuf, _("bad instruction `%.50s'"), start);
681 *errmsg = errbuf;
682 return NULL;