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252b5132 RH |
1 | /* Assembler interface for targets using CGEN. -*- C -*- |
2 | CGEN: Cpu tools GENerator | |
3 | ||
4 | THIS FILE IS MACHINE GENERATED WITH CGEN. | |
5 | - the resultant file is machine generated, cgen-asm.in isn't | |
6 | ||
7 | Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc. | |
8 | ||
9 | This file is part of the GNU Binutils and GDB, the GNU debugger. | |
10 | ||
11 | This program 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 2, or (at your option) | |
14 | any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
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 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
24 | ||
25 | /* ??? Eventually more and more of this stuff can go to cpu-independent files. | |
26 | Keep that in mind. */ | |
27 | ||
28 | #include "sysdep.h" | |
29 | #include <ctype.h> | |
30 | #include <stdio.h> | |
31 | #include "ansidecl.h" | |
32 | #include "bfd.h" | |
33 | #include "symcat.h" | |
34 | #include "m32r-desc.h" | |
35 | #include "m32r-opc.h" | |
36 | #include "opintl.h" | |
37 | ||
38 | #undef min | |
39 | #define min(a,b) ((a) < (b) ? (a) : (b)) | |
40 | #undef max | |
41 | #define max(a,b) ((a) > (b) ? (a) : (b)) | |
42 | ||
43 | static const char * parse_insn_normal | |
44 | PARAMS ((CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *)); | |
45 | \f | |
46 | /* -- assembler routines inserted here */ | |
47 | ||
48 | /* -- asm.c */ | |
49 | ||
50 | /* Handle '#' prefixes (i.e. skip over them). */ | |
51 | ||
52 | static const char * | |
53 | parse_hash (cd, strp, opindex, valuep) | |
54 | CGEN_CPU_DESC cd; | |
55 | const char **strp; | |
56 | int opindex; | |
57 | unsigned long *valuep; | |
58 | { | |
59 | if (**strp == '#') | |
60 | ++*strp; | |
61 | return NULL; | |
62 | } | |
63 | ||
64 | /* Handle shigh(), high(). */ | |
65 | ||
66 | static const char * | |
67 | parse_hi16 (cd, strp, opindex, valuep) | |
68 | CGEN_CPU_DESC cd; | |
69 | const char **strp; | |
70 | int opindex; | |
71 | unsigned long *valuep; | |
72 | { | |
73 | const char *errmsg; | |
74 | enum cgen_parse_operand_result result_type; | |
75 | bfd_vma value; | |
76 | ||
77 | if (**strp == '#') | |
78 | ++*strp; | |
79 | ||
80 | if (strncasecmp (*strp, "high(", 5) == 0) | |
81 | { | |
82 | *strp += 5; | |
83 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_M32R_HI16_ULO, | |
84 | &result_type, &value); | |
85 | if (**strp != ')') | |
86 | return "missing `)'"; | |
87 | ++*strp; | |
88 | if (errmsg == NULL | |
89 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
90 | value >>= 16; | |
91 | *valuep = value; | |
92 | return errmsg; | |
93 | } | |
94 | else if (strncasecmp (*strp, "shigh(", 6) == 0) | |
95 | { | |
96 | *strp += 6; | |
97 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_M32R_HI16_SLO, | |
98 | &result_type, &value); | |
99 | if (**strp != ')') | |
100 | return "missing `)'"; | |
101 | ++*strp; | |
102 | if (errmsg == NULL | |
103 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
104 | value = (value >> 16) + (value & 0x8000 ? 1 : 0); | |
105 | *valuep = value; | |
106 | return errmsg; | |
107 | } | |
108 | ||
109 | return cgen_parse_unsigned_integer (cd, strp, opindex, valuep); | |
110 | } | |
111 | ||
112 | /* Handle low() in a signed context. Also handle sda(). | |
113 | The signedness of the value doesn't matter to low(), but this also | |
114 | handles the case where low() isn't present. */ | |
115 | ||
116 | static const char * | |
117 | parse_slo16 (cd, strp, opindex, valuep) | |
118 | CGEN_CPU_DESC cd; | |
119 | const char **strp; | |
120 | int opindex; | |
121 | long *valuep; | |
122 | { | |
123 | const char *errmsg; | |
124 | enum cgen_parse_operand_result result_type; | |
125 | bfd_vma value; | |
126 | ||
127 | if (**strp == '#') | |
128 | ++*strp; | |
129 | ||
130 | if (strncasecmp (*strp, "low(", 4) == 0) | |
131 | { | |
132 | *strp += 4; | |
133 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_M32R_LO16, | |
134 | &result_type, &value); | |
135 | if (**strp != ')') | |
136 | return "missing `)'"; | |
137 | ++*strp; | |
138 | if (errmsg == NULL | |
139 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
140 | value &= 0xffff; | |
141 | *valuep = value; | |
142 | return errmsg; | |
143 | } | |
144 | ||
145 | if (strncasecmp (*strp, "sda(", 4) == 0) | |
146 | { | |
147 | *strp += 4; | |
148 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_M32R_SDA16, | |
149 | NULL, &value); | |
150 | if (**strp != ')') | |
151 | return "missing `)'"; | |
152 | ++*strp; | |
153 | *valuep = value; | |
154 | return errmsg; | |
155 | } | |
156 | ||
157 | return cgen_parse_signed_integer (cd, strp, opindex, valuep); | |
158 | } | |
159 | ||
160 | /* Handle low() in an unsigned context. | |
161 | The signedness of the value doesn't matter to low(), but this also | |
162 | handles the case where low() isn't present. */ | |
163 | ||
164 | static const char * | |
165 | parse_ulo16 (cd, strp, opindex, valuep) | |
166 | CGEN_CPU_DESC cd; | |
167 | const char **strp; | |
168 | int opindex; | |
169 | unsigned long *valuep; | |
170 | { | |
171 | const char *errmsg; | |
172 | enum cgen_parse_operand_result result_type; | |
173 | bfd_vma value; | |
174 | ||
175 | if (**strp == '#') | |
176 | ++*strp; | |
177 | ||
178 | if (strncasecmp (*strp, "low(", 4) == 0) | |
179 | { | |
180 | *strp += 4; | |
181 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_M32R_LO16, | |
182 | &result_type, &value); | |
183 | if (**strp != ')') | |
184 | return "missing `)'"; | |
185 | ++*strp; | |
186 | if (errmsg == NULL | |
187 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
188 | value &= 0xffff; | |
189 | *valuep = value; | |
190 | return errmsg; | |
191 | } | |
192 | ||
193 | return cgen_parse_unsigned_integer (cd, strp, opindex, valuep); | |
194 | } | |
195 | ||
196 | /* -- */ | |
197 | ||
198 | /* Main entry point for operand parsing. | |
199 | ||
200 | This function is basically just a big switch statement. Earlier versions | |
201 | used tables to look up the function to use, but | |
202 | - if the table contains both assembler and disassembler functions then | |
203 | the disassembler contains much of the assembler and vice-versa, | |
204 | - there's a lot of inlining possibilities as things grow, | |
205 | - using a switch statement avoids the function call overhead. | |
206 | ||
207 | This function could be moved into `parse_insn_normal', but keeping it | |
208 | separate makes clear the interface between `parse_insn_normal' and each of | |
209 | the handlers. | |
210 | */ | |
211 | ||
212 | const char * | |
213 | m32r_cgen_parse_operand (cd, opindex, strp, fields) | |
214 | CGEN_CPU_DESC cd; | |
215 | int opindex; | |
216 | const char ** strp; | |
217 | CGEN_FIELDS * fields; | |
218 | { | |
eb1b03df DE |
219 | const char * errmsg = NULL; |
220 | /* Used by scalar operands that still need to be parsed. */ | |
221 | long junk; | |
252b5132 RH |
222 | |
223 | switch (opindex) | |
224 | { | |
1fa60b5d DE |
225 | case M32R_OPERAND_ACC : |
226 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_h_accums, & fields->f_acc); | |
227 | break; | |
228 | case M32R_OPERAND_ACCD : | |
229 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_h_accums, & fields->f_accd); | |
230 | break; | |
231 | case M32R_OPERAND_ACCS : | |
232 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_h_accums, & fields->f_accs); | |
233 | break; | |
252b5132 RH |
234 | case M32R_OPERAND_DCR : |
235 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_cr_names, & fields->f_r1); | |
236 | break; | |
237 | case M32R_OPERAND_DISP16 : | |
238 | { | |
239 | bfd_vma value; | |
240 | errmsg = cgen_parse_address (cd, strp, M32R_OPERAND_DISP16, 0, NULL, & value); | |
241 | fields->f_disp16 = value; | |
242 | } | |
243 | break; | |
244 | case M32R_OPERAND_DISP24 : | |
245 | { | |
246 | bfd_vma value; | |
247 | errmsg = cgen_parse_address (cd, strp, M32R_OPERAND_DISP24, 0, NULL, & value); | |
248 | fields->f_disp24 = value; | |
249 | } | |
250 | break; | |
251 | case M32R_OPERAND_DISP8 : | |
252 | { | |
253 | bfd_vma value; | |
254 | errmsg = cgen_parse_address (cd, strp, M32R_OPERAND_DISP8, 0, NULL, & value); | |
255 | fields->f_disp8 = value; | |
256 | } | |
257 | break; | |
258 | case M32R_OPERAND_DR : | |
259 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_gr_names, & fields->f_r1); | |
260 | break; | |
261 | case M32R_OPERAND_HASH : | |
eb1b03df | 262 | errmsg = parse_hash (cd, strp, M32R_OPERAND_HASH, &junk); |
252b5132 RH |
263 | break; |
264 | case M32R_OPERAND_HI16 : | |
265 | errmsg = parse_hi16 (cd, strp, M32R_OPERAND_HI16, &fields->f_hi16); | |
266 | break; | |
1fa60b5d DE |
267 | case M32R_OPERAND_IMM1 : |
268 | errmsg = cgen_parse_unsigned_integer (cd, strp, M32R_OPERAND_IMM1, &fields->f_imm1); | |
269 | break; | |
252b5132 RH |
270 | case M32R_OPERAND_SCR : |
271 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_cr_names, & fields->f_r2); | |
272 | break; | |
273 | case M32R_OPERAND_SIMM16 : | |
274 | errmsg = cgen_parse_signed_integer (cd, strp, M32R_OPERAND_SIMM16, &fields->f_simm16); | |
275 | break; | |
276 | case M32R_OPERAND_SIMM8 : | |
277 | errmsg = cgen_parse_signed_integer (cd, strp, M32R_OPERAND_SIMM8, &fields->f_simm8); | |
278 | break; | |
279 | case M32R_OPERAND_SLO16 : | |
280 | errmsg = parse_slo16 (cd, strp, M32R_OPERAND_SLO16, &fields->f_simm16); | |
281 | break; | |
282 | case M32R_OPERAND_SR : | |
283 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_gr_names, & fields->f_r2); | |
284 | break; | |
285 | case M32R_OPERAND_SRC1 : | |
286 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_gr_names, & fields->f_r1); | |
287 | break; | |
288 | case M32R_OPERAND_SRC2 : | |
289 | errmsg = cgen_parse_keyword (cd, strp, & m32r_cgen_opval_gr_names, & fields->f_r2); | |
290 | break; | |
291 | case M32R_OPERAND_UIMM16 : | |
292 | errmsg = cgen_parse_unsigned_integer (cd, strp, M32R_OPERAND_UIMM16, &fields->f_uimm16); | |
293 | break; | |
294 | case M32R_OPERAND_UIMM24 : | |
295 | { | |
296 | bfd_vma value; | |
297 | errmsg = cgen_parse_address (cd, strp, M32R_OPERAND_UIMM24, 0, NULL, & value); | |
298 | fields->f_uimm24 = value; | |
299 | } | |
300 | break; | |
301 | case M32R_OPERAND_UIMM4 : | |
302 | errmsg = cgen_parse_unsigned_integer (cd, strp, M32R_OPERAND_UIMM4, &fields->f_uimm4); | |
303 | break; | |
304 | case M32R_OPERAND_UIMM5 : | |
305 | errmsg = cgen_parse_unsigned_integer (cd, strp, M32R_OPERAND_UIMM5, &fields->f_uimm5); | |
306 | break; | |
307 | case M32R_OPERAND_ULO16 : | |
308 | errmsg = parse_ulo16 (cd, strp, M32R_OPERAND_ULO16, &fields->f_uimm16); | |
309 | break; | |
310 | ||
311 | default : | |
312 | /* xgettext:c-format */ | |
313 | fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex); | |
314 | abort (); | |
315 | } | |
316 | ||
317 | return errmsg; | |
318 | } | |
319 | ||
320 | cgen_parse_fn * const m32r_cgen_parse_handlers[] = | |
321 | { | |
322 | parse_insn_normal, | |
323 | }; | |
324 | ||
325 | void | |
326 | m32r_cgen_init_asm (cd) | |
327 | CGEN_CPU_DESC cd; | |
328 | { | |
329 | m32r_cgen_init_opcode_table (cd); | |
330 | m32r_cgen_init_ibld_table (cd); | |
331 | cd->parse_handlers = & m32r_cgen_parse_handlers[0]; | |
332 | cd->parse_operand = m32r_cgen_parse_operand; | |
333 | } | |
334 | ||
335 | \f | |
336 | /* Default insn parser. | |
337 | ||
338 | The syntax string is scanned and operands are parsed and stored in FIELDS. | |
339 | Relocs are queued as we go via other callbacks. | |
340 | ||
341 | ??? Note that this is currently an all-or-nothing parser. If we fail to | |
342 | parse the instruction, we return 0 and the caller will start over from | |
343 | the beginning. Backtracking will be necessary in parsing subexpressions, | |
344 | but that can be handled there. Not handling backtracking here may get | |
345 | expensive in the case of the m68k. Deal with later. | |
346 | ||
347 | Returns NULL for success, an error message for failure. | |
348 | */ | |
349 | ||
350 | static const char * | |
351 | parse_insn_normal (cd, insn, strp, fields) | |
352 | CGEN_CPU_DESC cd; | |
353 | const CGEN_INSN *insn; | |
354 | const char **strp; | |
355 | CGEN_FIELDS *fields; | |
356 | { | |
357 | /* ??? Runtime added insns not handled yet. */ | |
358 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
359 | const char *str = *strp; | |
360 | const char *errmsg; | |
361 | const char *p; | |
362 | const unsigned char * syn; | |
363 | #ifdef CGEN_MNEMONIC_OPERANDS | |
364 | /* FIXME: wip */ | |
365 | int past_opcode_p; | |
366 | #endif | |
367 | ||
368 | /* For now we assume the mnemonic is first (there are no leading operands). | |
369 | We can parse it without needing to set up operand parsing. | |
370 | GAS's input scrubber will ensure mnemonics are lowercase, but we may | |
371 | not be called from GAS. */ | |
372 | p = CGEN_INSN_MNEMONIC (insn); | |
373 | while (*p && tolower (*p) == tolower (*str)) | |
374 | ++p, ++str; | |
1fa60b5d DE |
375 | |
376 | if (* p) | |
377 | return _("unrecognized instruction"); | |
378 | ||
379 | #ifndef CGEN_MNEMONIC_OPERANDS | |
380 | if (* str && !isspace (* str)) | |
252b5132 | 381 | return _("unrecognized instruction"); |
1fa60b5d | 382 | #endif |
252b5132 RH |
383 | |
384 | CGEN_INIT_PARSE (cd); | |
385 | cgen_init_parse_operand (cd); | |
386 | #ifdef CGEN_MNEMONIC_OPERANDS | |
387 | past_opcode_p = 0; | |
388 | #endif | |
389 | ||
390 | /* We don't check for (*str != '\0') here because we want to parse | |
391 | any trailing fake arguments in the syntax string. */ | |
392 | syn = CGEN_SYNTAX_STRING (syntax); | |
393 | ||
394 | /* Mnemonics come first for now, ensure valid string. */ | |
395 | if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) | |
396 | abort (); | |
397 | ||
398 | ++syn; | |
399 | ||
400 | while (* syn != 0) | |
401 | { | |
402 | /* Non operand chars must match exactly. */ | |
403 | if (CGEN_SYNTAX_CHAR_P (* syn)) | |
404 | { | |
1fa60b5d DE |
405 | /* FIXME: While we allow for non-GAS callers above, we assume the |
406 | first char after the mnemonic part is a space. */ | |
407 | /* FIXME: We also take inappropriate advantage of the fact that | |
408 | GAS's input scrubber will remove extraneous blanks. */ | |
6bb95a0f | 409 | if (tolower (*str) == tolower (CGEN_SYNTAX_CHAR (* syn))) |
252b5132 RH |
410 | { |
411 | #ifdef CGEN_MNEMONIC_OPERANDS | |
412 | if (* syn == ' ') | |
413 | past_opcode_p = 1; | |
414 | #endif | |
415 | ++ syn; | |
416 | ++ str; | |
417 | } | |
418 | else | |
419 | { | |
420 | /* Syntax char didn't match. Can't be this insn. */ | |
6bb95a0f DB |
421 | static char msg [80]; |
422 | /* xgettext:c-format */ | |
423 | sprintf (msg, _("syntax error (expected char `%c', found `%c')"), | |
424 | *syn, *str); | |
425 | return msg; | |
252b5132 RH |
426 | } |
427 | continue; | |
428 | } | |
429 | ||
430 | /* We have an operand of some sort. */ | |
431 | errmsg = m32r_cgen_parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), | |
432 | &str, fields); | |
433 | if (errmsg) | |
434 | return errmsg; | |
435 | ||
436 | /* Done with this operand, continue with next one. */ | |
437 | ++ syn; | |
438 | } | |
439 | ||
440 | /* If we're at the end of the syntax string, we're done. */ | |
441 | if (* syn == '\0') | |
442 | { | |
443 | /* FIXME: For the moment we assume a valid `str' can only contain | |
444 | blanks now. IE: We needn't try again with a longer version of | |
445 | the insn and it is assumed that longer versions of insns appear | |
446 | before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ | |
447 | while (isspace (* str)) | |
448 | ++ str; | |
449 | ||
450 | if (* str != '\0') | |
451 | return _("junk at end of line"); /* FIXME: would like to include `str' */ | |
452 | ||
453 | return NULL; | |
454 | } | |
455 | ||
456 | /* We couldn't parse it. */ | |
457 | return _("unrecognized instruction"); | |
458 | } | |
459 | \f | |
460 | /* Main entry point. | |
461 | This routine is called for each instruction to be assembled. | |
462 | STR points to the insn to be assembled. | |
463 | We assume all necessary tables have been initialized. | |
464 | The assembled instruction, less any fixups, is stored in BUF. | |
465 | Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value | |
466 | still needs to be converted to target byte order, otherwise BUF is an array | |
467 | of bytes in target byte order. | |
468 | The result is a pointer to the insn's entry in the opcode table, | |
469 | or NULL if an error occured (an error message will have already been | |
470 | printed). | |
471 | ||
472 | Note that when processing (non-alias) macro-insns, | |
473 | this function recurses. | |
474 | ||
475 | ??? It's possible to make this cpu-independent. | |
476 | One would have to deal with a few minor things. | |
477 | At this point in time doing so would be more of a curiosity than useful | |
478 | [for example this file isn't _that_ big], but keeping the possibility in | |
479 | mind helps keep the design clean. */ | |
480 | ||
481 | const CGEN_INSN * | |
482 | m32r_cgen_assemble_insn (cd, str, fields, buf, errmsg) | |
483 | CGEN_CPU_DESC cd; | |
484 | const char *str; | |
485 | CGEN_FIELDS *fields; | |
486 | CGEN_INSN_BYTES_PTR buf; | |
487 | char **errmsg; | |
488 | { | |
489 | const char *start; | |
490 | CGEN_INSN_LIST *ilist; | |
6bb95a0f | 491 | const char *tmp_errmsg = NULL; |
252b5132 RH |
492 | |
493 | /* Skip leading white space. */ | |
494 | while (isspace (* str)) | |
495 | ++ str; | |
496 | ||
497 | /* The instructions are stored in hashed lists. | |
498 | Get the first in the list. */ | |
499 | ilist = CGEN_ASM_LOOKUP_INSN (cd, str); | |
500 | ||
501 | /* Keep looking until we find a match. */ | |
502 | ||
503 | start = str; | |
504 | for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) | |
505 | { | |
506 | const CGEN_INSN *insn = ilist->insn; | |
507 | ||
cfcdbe97 AH |
508 | #ifdef CGEN_VALIDATE_INSN_SUPPORTED |
509 | /* not usually needed as unsupported opcodes shouldn't be in the hash lists */ | |
252b5132 RH |
510 | /* Is this insn supported by the selected cpu? */ |
511 | if (! m32r_cgen_insn_supported (cd, insn)) | |
512 | continue; | |
513 | #endif | |
514 | ||
515 | /* If the RELAX attribute is set, this is an insn that shouldn't be | |
516 | chosen immediately. Instead, it is used during assembler/linker | |
517 | relaxation if possible. */ | |
518 | if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAX) != 0) | |
519 | continue; | |
520 | ||
521 | str = start; | |
522 | ||
523 | /* Allow parse/insert handlers to obtain length of insn. */ | |
524 | CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); | |
525 | ||
6bb95a0f DB |
526 | tmp_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); |
527 | if (tmp_errmsg != NULL) | |
528 | continue; | |
252b5132 | 529 | |
6bb95a0f DB |
530 | /* ??? 0 is passed for `pc' */ |
531 | tmp_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, | |
532 | (bfd_vma) 0); | |
533 | if (tmp_errmsg != NULL) | |
534 | continue; | |
535 | ||
536 | /* It is up to the caller to actually output the insn and any | |
537 | queued relocs. */ | |
538 | return insn; | |
252b5132 RH |
539 | } |
540 | ||
6bb95a0f DB |
541 | /* Make sure we leave this with something at this point. */ |
542 | if (tmp_errmsg == NULL) | |
543 | tmp_errmsg = "unknown mnemonic"; | |
544 | ||
252b5132 | 545 | { |
cfcdbe97 AH |
546 | static char errbuf[150]; |
547 | ||
548 | #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS | |
549 | /* if verbose error messages, use errmsg from CGEN_PARSE_FN */ | |
550 | if (strlen (start) > 50) | |
551 | /* xgettext:c-format */ | |
552 | sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); | |
553 | else | |
554 | /* xgettext:c-format */ | |
555 | sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); | |
556 | #else | |
252b5132 RH |
557 | if (strlen (start) > 50) |
558 | /* xgettext:c-format */ | |
559 | sprintf (errbuf, _("bad instruction `%.50s...'"), start); | |
560 | else | |
561 | /* xgettext:c-format */ | |
562 | sprintf (errbuf, _("bad instruction `%.50s'"), start); | |
cfcdbe97 | 563 | #endif |
252b5132 RH |
564 | |
565 | *errmsg = errbuf; | |
566 | return NULL; | |
567 | } | |
568 | } | |
569 | \f | |
570 | #if 0 /* This calls back to GAS which we can't do without care. */ | |
571 | ||
572 | /* Record each member of OPVALS in the assembler's symbol table. | |
573 | This lets GAS parse registers for us. | |
574 | ??? Interesting idea but not currently used. */ | |
575 | ||
576 | /* Record each member of OPVALS in the assembler's symbol table. | |
577 | FIXME: Not currently used. */ | |
578 | ||
579 | void | |
580 | m32r_cgen_asm_hash_keywords (cd, opvals) | |
581 | CGEN_CPU_DESC cd; | |
582 | CGEN_KEYWORD *opvals; | |
583 | { | |
584 | CGEN_KEYWORD_SEARCH search = cgen_keyword_search_init (opvals, NULL); | |
585 | const CGEN_KEYWORD_ENTRY * ke; | |
586 | ||
587 | while ((ke = cgen_keyword_search_next (& search)) != NULL) | |
588 | { | |
589 | #if 0 /* Unnecessary, should be done in the search routine. */ | |
590 | if (! m32r_cgen_opval_supported (ke)) | |
591 | continue; | |
592 | #endif | |
593 | cgen_asm_record_register (cd, ke->name, ke->value); | |
594 | } | |
595 | } | |
596 | ||
597 | #endif /* 0 */ |