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49f58d10 | 1 | /* m32c opcode support. -*- C -*- |
0a665bfd JB |
2 | |
3 | Copyright 2005 Free Software Foundation, Inc. | |
4 | ||
5 | Contributed by Red Hat Inc; developed under contract from Renesas | |
6 | ||
7 | This file is part of the GNU Binutils. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |
49f58d10 JB |
22 | |
23 | /* This file is an addendum to m32c.cpu. Heavy use of C code isn't | |
24 | appropriate in .cpu files, so it resides here. This especially applies | |
25 | to assembly/disassembly where parsing/printing can be quite involved. | |
26 | Such things aren't really part of the specification of the cpu, per se, | |
27 | so .cpu files provide the general framework and .opc files handle the | |
28 | nitty-gritty details as necessary. | |
29 | ||
30 | Each section is delimited with start and end markers. | |
31 | ||
32 | <arch>-opc.h additions use: "-- opc.h" | |
33 | <arch>-opc.c additions use: "-- opc.c" | |
34 | <arch>-asm.c additions use: "-- asm.c" | |
35 | <arch>-dis.c additions use: "-- dis.c" | |
e729279b | 36 | <arch>-ibd.h additions use: "-- ibd.h". */ |
49f58d10 JB |
37 | \f |
38 | /* -- opc.h */ | |
39 | ||
40 | /* Needed for RTL's 'ext' and 'trunc' operators. */ | |
41 | #include "cgen-types.h" | |
42 | #include "cgen-ops.h" | |
43 | ||
44 | /* We can't use the default hash size because many bits are used by | |
45 | operands. */ | |
46 | #define CGEN_DIS_HASH_SIZE 1 | |
47 | #define CGEN_DIS_HASH(buf, value) 0 | |
48 | #define CGEN_VERBOSE_ASSEMBLER_ERRORS | |
49 | #define CGEN_VALIDATE_INSN_SUPPORTED | |
50 | ||
51 | extern int m32c_cgen_insn_supported (CGEN_CPU_DESC, const CGEN_INSN *); | |
52 | ||
53 | #define CGEN_ASM_HASH_SIZE 0xffff | |
54 | #define CGEN_ASM_HASH(mnem) m32c_asm_hash ((mnem)) | |
55 | ||
56 | /* -- */ | |
57 | \f | |
58 | /* -- opc.c */ | |
59 | static unsigned int | |
60 | m32c_asm_hash (const char *mnem) | |
61 | { | |
62 | unsigned int h; | |
63 | ||
64 | /* The length of the mnemonic for the Jcnd insns is 1. Hash jsri. */ | |
65 | if (mnem[0] == 'j' && mnem[1] != 's') | |
66 | return 'j'; | |
67 | ||
68 | /* Don't hash scCND */ | |
69 | if (mnem[0] == 's' && mnem[1] == 'c') | |
70 | return 's'; | |
71 | ||
72 | for (h = 0; *mnem && *mnem != ' ' && *mnem != ':'; ++mnem) | |
73 | h += *mnem; | |
74 | return h % CGEN_ASM_HASH_SIZE; | |
75 | } | |
76 | \f | |
77 | /* -- asm.c */ | |
e729279b | 78 | #include "safe-ctype.h" |
49f58d10 JB |
79 | |
80 | #define MACH_M32C 5 /* Must match md_begin. */ | |
81 | ||
82 | static int | |
83 | m32c_cgen_isa_register (const char **strp) | |
84 | { | |
85 | int u; | |
86 | const char *s = *strp; | |
87 | static char * m32c_register_names [] = | |
88 | { | |
89 | "r0", "r1", "r2", "r3", "r0l", "r0h", "r1l", "r1h", | |
90 | "a0", "a1", "r2r0", "r3r1", "sp", "fb", "dct0", "dct1", "flg", "svf", | |
91 | "drc0", "drc1", "dmd0", "dmd1", "intb", "svp", "vct", "isp", "dma0", | |
92 | "dma1", "dra0", "dra1", "dsa0", "dsa1", 0 | |
93 | }; | |
94 | ||
95 | for (u = 0; m32c_register_names[u]; u++) | |
96 | { | |
97 | int len = strlen (m32c_register_names[u]); | |
98 | ||
99 | if (memcmp (m32c_register_names[u], s, len) == 0 | |
100 | && (s[len] == 0 || ! ISALNUM (s[len]))) | |
101 | return 1; | |
102 | } | |
103 | return 0; | |
104 | } | |
105 | ||
e729279b NC |
106 | #define PARSE_UNSIGNED \ |
107 | do \ | |
108 | { \ | |
109 | /* Don't successfully parse literals beginning with '['. */ \ | |
110 | if (**strp == '[') \ | |
111 | return "Invalid literal"; /* Anything -- will not be seen. */ \ | |
112 | \ | |
113 | errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value);\ | |
114 | if (errmsg) \ | |
115 | return errmsg; \ | |
116 | } \ | |
117 | while (0) | |
118 | ||
119 | #define PARSE_SIGNED \ | |
120 | do \ | |
121 | { \ | |
122 | /* Don't successfully parse literals beginning with '['. */ \ | |
123 | if (**strp == '[') \ | |
124 | return "Invalid literal"; /* Anything -- will not be seen. */ \ | |
125 | \ | |
126 | errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); \ | |
127 | if (errmsg) \ | |
128 | return errmsg; \ | |
129 | } \ | |
130 | while (0) | |
131 | ||
49f58d10 JB |
132 | static const char * |
133 | parse_unsigned6 (CGEN_CPU_DESC cd, const char **strp, | |
134 | int opindex, unsigned long *valuep) | |
135 | { | |
136 | const char *errmsg = 0; | |
137 | unsigned long value; | |
49f58d10 | 138 | |
e729279b | 139 | PARSE_UNSIGNED; |
49f58d10 JB |
140 | |
141 | if (value > 0x3f) | |
142 | return _("imm:6 immediate is out of range"); | |
143 | ||
144 | *valuep = value; | |
145 | return 0; | |
146 | } | |
147 | ||
148 | static const char * | |
149 | parse_unsigned8 (CGEN_CPU_DESC cd, const char **strp, | |
150 | int opindex, unsigned long *valuep) | |
151 | { | |
152 | const char *errmsg = 0; | |
153 | unsigned long value; | |
154 | long have_zero = 0; | |
155 | ||
49f58d10 JB |
156 | if (strncmp (*strp, "0x0", 3) == 0 |
157 | || (**strp == '0' && *(*strp + 1) != 'x')) | |
158 | have_zero = 1; | |
159 | ||
e729279b | 160 | PARSE_UNSIGNED; |
49f58d10 JB |
161 | |
162 | if (value > 0xff) | |
163 | return _("dsp:8 immediate is out of range"); | |
164 | ||
165 | /* If this field may require a relocation then use larger dsp16. */ | |
166 | if (! have_zero && value == 0) | |
167 | return _("dsp:8 immediate is out of range"); | |
168 | ||
169 | *valuep = value; | |
170 | return 0; | |
171 | } | |
172 | ||
173 | static const char * | |
174 | parse_signed4 (CGEN_CPU_DESC cd, const char **strp, | |
175 | int opindex, signed long *valuep) | |
176 | { | |
177 | const char *errmsg = 0; | |
178 | signed long value; | |
179 | long have_zero = 0; | |
49f58d10 JB |
180 | |
181 | if (strncmp (*strp, "0x0", 3) == 0 | |
182 | || (**strp == '0' && *(*strp + 1) != 'x')) | |
183 | have_zero = 1; | |
184 | ||
e729279b | 185 | PARSE_SIGNED; |
49f58d10 JB |
186 | |
187 | if (value < -8 || value > 7) | |
188 | return _("Immediate is out of range -8 to 7"); | |
189 | ||
190 | /* If this field may require a relocation then use larger dsp16. */ | |
191 | if (! have_zero && value == 0) | |
192 | return _("Immediate is out of range -8 to 7"); | |
193 | ||
194 | *valuep = value; | |
195 | return 0; | |
196 | } | |
197 | ||
198 | static const char * | |
199 | parse_signed8 (CGEN_CPU_DESC cd, const char **strp, | |
200 | int opindex, signed long *valuep) | |
201 | { | |
202 | const char *errmsg = 0; | |
203 | signed long value; | |
204 | ||
e729279b | 205 | PARSE_SIGNED; |
49f58d10 JB |
206 | |
207 | if (value <= 255 && value > 127) | |
208 | value -= 0x100; | |
209 | ||
210 | if (value < -128 || value > 127) | |
211 | return _("dsp:8 immediate is out of range"); | |
212 | ||
213 | *valuep = value; | |
214 | return 0; | |
215 | } | |
216 | ||
217 | static const char * | |
218 | parse_unsigned16 (CGEN_CPU_DESC cd, const char **strp, | |
219 | int opindex, unsigned long *valuep) | |
220 | { | |
221 | const char *errmsg = 0; | |
222 | unsigned long value; | |
223 | long have_zero = 0; | |
224 | ||
e729279b | 225 | /* Don't successfully parse literals beginning with '['. */ |
49f58d10 | 226 | if (**strp == '[') |
e729279b | 227 | return "Invalid literal"; /* Anything -- will not be seen. */ |
49f58d10 | 228 | |
e729279b | 229 | /* Don't successfully parse register names. */ |
49f58d10 | 230 | if (m32c_cgen_isa_register (strp)) |
e729279b | 231 | return "Invalid literal"; /* Anything -- will not be seen. */ |
49f58d10 JB |
232 | |
233 | if (strncmp (*strp, "0x0", 3) == 0 | |
234 | || (**strp == '0' && *(*strp + 1) != 'x')) | |
235 | have_zero = 1; | |
236 | ||
237 | errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value); | |
238 | if (errmsg) | |
239 | return errmsg; | |
240 | ||
241 | if (value > 0xffff) | |
242 | return _("dsp:16 immediate is out of range"); | |
243 | ||
244 | /* If this field may require a relocation then use larger dsp24. */ | |
245 | if (cd->machs == MACH_M32C && ! have_zero && value == 0 | |
246 | && (strncmp (*strp, "[a", 2) == 0 | |
247 | || **strp == ',' | |
248 | || **strp == 0)) | |
249 | return _("dsp:16 immediate is out of range"); | |
250 | ||
251 | *valuep = value; | |
252 | return 0; | |
253 | } | |
254 | ||
255 | static const char * | |
256 | parse_signed16 (CGEN_CPU_DESC cd, const char **strp, | |
257 | int opindex, signed long *valuep) | |
258 | { | |
259 | const char *errmsg = 0; | |
260 | signed long value; | |
49f58d10 | 261 | |
e729279b | 262 | PARSE_SIGNED; |
49f58d10 JB |
263 | |
264 | if (value <= 65535 && value > 32767) | |
265 | value -= 0x10000; | |
266 | ||
267 | if (value < -32768 || value > 32767) | |
268 | return _("dsp:16 immediate is out of range"); | |
269 | ||
270 | *valuep = value; | |
271 | return 0; | |
272 | } | |
273 | ||
274 | static const char * | |
275 | parse_unsigned20 (CGEN_CPU_DESC cd, const char **strp, | |
276 | int opindex, unsigned long *valuep) | |
277 | { | |
278 | const char *errmsg = 0; | |
279 | unsigned long value; | |
280 | ||
e729279b | 281 | /* Don't successfully parse literals beginning with '['. */ |
49f58d10 | 282 | if (**strp == '[') |
e729279b | 283 | return "Invalid literal"; /* Anything -- will not be seen. */ |
49f58d10 | 284 | |
e729279b | 285 | /* Don't successfully parse register names. */ |
49f58d10 | 286 | if (m32c_cgen_isa_register (strp)) |
e729279b | 287 | return "Invalid literal"; /* Anything -- will not be seen. */ |
49f58d10 JB |
288 | |
289 | errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value); | |
290 | if (errmsg) | |
291 | return errmsg; | |
292 | ||
293 | if (value > 0xfffff) | |
294 | return _("dsp:20 immediate is out of range"); | |
295 | ||
296 | *valuep = value; | |
297 | return 0; | |
298 | } | |
299 | ||
300 | static const char * | |
301 | parse_unsigned24 (CGEN_CPU_DESC cd, const char **strp, | |
302 | int opindex, unsigned long *valuep) | |
303 | { | |
304 | const char *errmsg = 0; | |
305 | unsigned long value; | |
306 | ||
e729279b | 307 | /* Don't successfully parse literals beginning with '['. */ |
49f58d10 | 308 | if (**strp == '[') |
e729279b | 309 | return "Invalid literal"; /* Anything -- will not be seen. */ |
49f58d10 | 310 | |
e729279b | 311 | /* Don't successfully parse register names. */ |
49f58d10 | 312 | if (m32c_cgen_isa_register (strp)) |
e729279b | 313 | return "Invalid literal"; /* Anything -- will not be seen. */ |
49f58d10 JB |
314 | |
315 | errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value); | |
316 | if (errmsg) | |
317 | return errmsg; | |
318 | ||
319 | if (value > 0xffffff) | |
320 | return _("dsp:24 immediate is out of range"); | |
321 | ||
322 | *valuep = value; | |
323 | return 0; | |
324 | } | |
325 | ||
326 | static const char * | |
327 | parse_signed32 (CGEN_CPU_DESC cd, const char **strp, | |
e729279b | 328 | int opindex, signed long *valuep) |
49f58d10 JB |
329 | { |
330 | const char *errmsg = 0; | |
331 | signed long value; | |
332 | ||
49f58d10 JB |
333 | errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); |
334 | if (errmsg) | |
335 | return errmsg; | |
336 | ||
337 | *valuep = value; | |
338 | return 0; | |
339 | } | |
340 | ||
341 | static const char * | |
342 | parse_imm1_S (CGEN_CPU_DESC cd, const char **strp, | |
343 | int opindex, signed long *valuep) | |
344 | { | |
345 | const char *errmsg = 0; | |
346 | signed long value; | |
49f58d10 | 347 | |
e729279b | 348 | errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); |
49f58d10 JB |
349 | if (errmsg) |
350 | return errmsg; | |
351 | ||
352 | if (value < 1 || value > 2) | |
353 | return _("immediate is out of range 1-2"); | |
354 | ||
355 | *valuep = value; | |
356 | return 0; | |
357 | } | |
358 | ||
359 | static const char * | |
360 | parse_imm3_S (CGEN_CPU_DESC cd, const char **strp, | |
361 | int opindex, signed long *valuep) | |
362 | { | |
363 | const char *errmsg = 0; | |
364 | signed long value; | |
365 | ||
e729279b | 366 | errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); |
49f58d10 JB |
367 | if (errmsg) |
368 | return errmsg; | |
369 | ||
370 | if (value < 1 || value > 8) | |
371 | return _("immediate is out of range 1-8"); | |
372 | ||
373 | *valuep = value; | |
374 | return 0; | |
375 | } | |
376 | ||
e729279b NC |
377 | static const char * |
378 | parse_lab_5_3 (CGEN_CPU_DESC cd, | |
379 | const char **strp, | |
380 | int opindex ATTRIBUTE_UNUSED, | |
381 | int opinfo, | |
382 | enum cgen_parse_operand_result *type_addr, | |
383 | unsigned long *valuep) | |
384 | { | |
385 | const char *errmsg = 0; | |
386 | unsigned long value; | |
387 | enum cgen_parse_operand_result op_res; | |
388 | ||
389 | errmsg = cgen_parse_address (cd, strp, M32C_OPERAND_LAB_5_3, | |
390 | opinfo, & op_res, & value); | |
391 | ||
392 | if (type_addr) | |
393 | *type_addr = op_res; | |
394 | ||
395 | if (op_res == CGEN_PARSE_OPERAND_ADDRESS) | |
396 | { | |
397 | /* This is a hack; the field cannot handle near-zero signed | |
398 | offsets that CGEN wants to put in to indicate an "empty" | |
399 | operand at first. */ | |
400 | *valuep = 2; | |
401 | return 0; | |
402 | } | |
403 | if (errmsg) | |
404 | return errmsg; | |
405 | ||
406 | if (value < 2 || value > 9) | |
407 | return _("immediate is out of range 2-9"); | |
408 | ||
409 | *valuep = value; | |
410 | return 0; | |
411 | } | |
412 | ||
49f58d10 JB |
413 | static const char * |
414 | parse_Bitno16R (CGEN_CPU_DESC cd, const char **strp, | |
415 | int opindex, unsigned long *valuep) | |
416 | { | |
417 | const char *errmsg = 0; | |
418 | unsigned long value; | |
419 | ||
49f58d10 JB |
420 | errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value); |
421 | if (errmsg) | |
422 | return errmsg; | |
423 | ||
424 | if (value > 15) | |
425 | return _("Bit number for indexing general register is out of range 0-15"); | |
426 | ||
427 | *valuep = value; | |
428 | return 0; | |
429 | } | |
430 | ||
431 | static const char * | |
432 | parse_unsigned_bitbase (CGEN_CPU_DESC cd, const char **strp, | |
433 | int opindex, unsigned long *valuep, | |
434 | unsigned bits) | |
435 | { | |
436 | const char *errmsg = 0; | |
437 | unsigned long bit; | |
438 | unsigned long base; | |
439 | const char *newp = *strp; | |
440 | unsigned long long bitbase; | |
441 | ||
49f58d10 JB |
442 | errmsg = cgen_parse_unsigned_integer (cd, & newp, opindex, & bit); |
443 | if (errmsg) | |
444 | return errmsg; | |
445 | ||
446 | if (*newp != ',') | |
447 | return "Missing base for bit,base:8"; | |
448 | ||
449 | ++newp; | |
450 | errmsg = cgen_parse_unsigned_integer (cd, & newp, opindex, & base); | |
451 | if (errmsg) | |
452 | return errmsg; | |
453 | ||
e729279b | 454 | bitbase = (unsigned long long) bit + ((unsigned long long) base * 8); |
49f58d10 JB |
455 | |
456 | if (bitbase >= (1ull << bits)) | |
457 | return _("bit,base is out of range"); | |
458 | ||
459 | *valuep = bitbase; | |
460 | *strp = newp; | |
461 | return 0; | |
462 | } | |
463 | ||
464 | static const char * | |
465 | parse_signed_bitbase (CGEN_CPU_DESC cd, const char **strp, | |
466 | int opindex, signed long *valuep, | |
467 | unsigned bits) | |
468 | { | |
469 | const char *errmsg = 0; | |
470 | unsigned long bit; | |
471 | signed long base; | |
472 | const char *newp = *strp; | |
473 | long long bitbase; | |
474 | long long limit; | |
475 | ||
49f58d10 JB |
476 | errmsg = cgen_parse_unsigned_integer (cd, & newp, opindex, & bit); |
477 | if (errmsg) | |
478 | return errmsg; | |
479 | ||
480 | if (*newp != ',') | |
481 | return "Missing base for bit,base:8"; | |
482 | ||
483 | ++newp; | |
484 | errmsg = cgen_parse_signed_integer (cd, & newp, opindex, & base); | |
485 | if (errmsg) | |
486 | return errmsg; | |
487 | ||
488 | bitbase = (long long)bit + ((long long)base * 8); | |
489 | ||
490 | limit = 1ll << (bits - 1); | |
491 | if (bitbase < -limit || bitbase >= limit) | |
492 | return _("bit,base is out of range"); | |
493 | ||
494 | *valuep = bitbase; | |
495 | *strp = newp; | |
496 | return 0; | |
497 | } | |
498 | ||
499 | static const char * | |
500 | parse_unsigned_bitbase8 (CGEN_CPU_DESC cd, const char **strp, | |
501 | int opindex, unsigned long *valuep) | |
502 | { | |
503 | return parse_unsigned_bitbase (cd, strp, opindex, valuep, 8); | |
504 | } | |
505 | ||
506 | static const char * | |
507 | parse_unsigned_bitbase11 (CGEN_CPU_DESC cd, const char **strp, | |
508 | int opindex, unsigned long *valuep) | |
509 | { | |
510 | return parse_unsigned_bitbase (cd, strp, opindex, valuep, 11); | |
511 | } | |
512 | ||
513 | static const char * | |
514 | parse_unsigned_bitbase16 (CGEN_CPU_DESC cd, const char **strp, | |
515 | int opindex, unsigned long *valuep) | |
516 | { | |
517 | return parse_unsigned_bitbase (cd, strp, opindex, valuep, 16); | |
518 | } | |
519 | ||
520 | static const char * | |
521 | parse_unsigned_bitbase19 (CGEN_CPU_DESC cd, const char **strp, | |
522 | int opindex, unsigned long *valuep) | |
523 | { | |
524 | return parse_unsigned_bitbase (cd, strp, opindex, valuep, 19); | |
525 | } | |
526 | ||
527 | static const char * | |
528 | parse_unsigned_bitbase27 (CGEN_CPU_DESC cd, const char **strp, | |
529 | int opindex, unsigned long *valuep) | |
530 | { | |
531 | return parse_unsigned_bitbase (cd, strp, opindex, valuep, 27); | |
532 | } | |
533 | ||
534 | static const char * | |
535 | parse_signed_bitbase8 (CGEN_CPU_DESC cd, const char **strp, | |
536 | int opindex, signed long *valuep) | |
537 | { | |
538 | return parse_signed_bitbase (cd, strp, opindex, valuep, 8); | |
539 | } | |
540 | ||
541 | static const char * | |
542 | parse_signed_bitbase11 (CGEN_CPU_DESC cd, const char **strp, | |
543 | int opindex, signed long *valuep) | |
544 | { | |
545 | return parse_signed_bitbase (cd, strp, opindex, valuep, 11); | |
546 | } | |
547 | ||
548 | static const char * | |
549 | parse_signed_bitbase19 (CGEN_CPU_DESC cd, const char **strp, | |
550 | int opindex, signed long *valuep) | |
551 | { | |
552 | return parse_signed_bitbase (cd, strp, opindex, valuep, 19); | |
553 | } | |
554 | ||
555 | /* Parse the suffix as :<char> or as nothing followed by a whitespace. */ | |
e729279b | 556 | |
49f58d10 JB |
557 | static const char * |
558 | parse_suffix (const char **strp, char suffix) | |
559 | { | |
560 | const char *newp = *strp; | |
561 | ||
e729279b | 562 | if (**strp == ':' && TOLOWER (*(*strp + 1)) == suffix) |
49f58d10 JB |
563 | newp = *strp + 2; |
564 | ||
e729279b | 565 | if (ISSPACE (*newp)) |
49f58d10 JB |
566 | { |
567 | *strp = newp; | |
568 | return 0; | |
569 | } | |
570 | ||
e729279b | 571 | return "Invalid suffix"; /* Anything -- will not be seen. */ |
49f58d10 JB |
572 | } |
573 | ||
574 | static const char * | |
575 | parse_S (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, const char **strp, | |
576 | int opindex ATTRIBUTE_UNUSED, signed long *valuep ATTRIBUTE_UNUSED) | |
577 | { | |
578 | return parse_suffix (strp, 's'); | |
579 | } | |
580 | ||
581 | static const char * | |
582 | parse_G (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, const char **strp, | |
583 | int opindex ATTRIBUTE_UNUSED, signed long *valuep ATTRIBUTE_UNUSED) | |
584 | { | |
585 | return parse_suffix (strp, 'g'); | |
586 | } | |
587 | ||
588 | static const char * | |
589 | parse_Q (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, const char **strp, | |
590 | int opindex ATTRIBUTE_UNUSED, signed long *valuep ATTRIBUTE_UNUSED) | |
591 | { | |
592 | return parse_suffix (strp, 'q'); | |
593 | } | |
594 | ||
595 | static const char * | |
596 | parse_Z (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, const char **strp, | |
597 | int opindex ATTRIBUTE_UNUSED, signed long *valuep ATTRIBUTE_UNUSED) | |
598 | { | |
599 | return parse_suffix (strp, 'z'); | |
600 | } | |
601 | ||
602 | /* Parse an empty suffix. Fail if the next char is ':'. */ | |
e729279b | 603 | |
49f58d10 JB |
604 | static const char * |
605 | parse_X (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, const char **strp, | |
606 | int opindex ATTRIBUTE_UNUSED, signed long *valuep ATTRIBUTE_UNUSED) | |
607 | { | |
608 | if (**strp == ':') | |
609 | return "Unexpected suffix"; | |
610 | return 0; | |
611 | } | |
612 | ||
613 | static const char * | |
614 | parse_r0l_r0h (CGEN_CPU_DESC cd, const char **strp, | |
615 | int opindex ATTRIBUTE_UNUSED, signed long *valuep) | |
616 | { | |
617 | const char *errmsg; | |
618 | signed long value; | |
619 | signed long junk; | |
620 | const char *newp = *strp; | |
621 | ||
e729279b | 622 | /* Parse r0[hl]. */ |
49f58d10 JB |
623 | errmsg = cgen_parse_keyword (cd, & newp, & m32c_cgen_opval_h_r0l_r0h, & value); |
624 | if (errmsg) | |
625 | return errmsg; | |
626 | ||
627 | if (*newp != ',') | |
e729279b | 628 | return _("not a valid r0l/r0h pair"); |
49f58d10 JB |
629 | ++newp; |
630 | ||
e729279b | 631 | /* Parse the second register in the pair. */ |
49f58d10 JB |
632 | if (value == 0) /* r0l */ |
633 | errmsg = cgen_parse_keyword (cd, & newp, & m32c_cgen_opval_h_r0h, & junk); | |
634 | else | |
635 | errmsg = cgen_parse_keyword (cd, & newp, & m32c_cgen_opval_h_r0l, & junk); | |
636 | if (errmsg) | |
637 | return errmsg; | |
638 | ||
639 | *strp = newp; | |
640 | *valuep = ! value; | |
641 | return 0; | |
642 | } | |
643 | ||
e729279b NC |
644 | /* Accept .b or .w in any case. */ |
645 | ||
49f58d10 JB |
646 | static const char * |
647 | parse_size (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, const char **strp, | |
648 | int opindex ATTRIBUTE_UNUSED, signed long *valuep ATTRIBUTE_UNUSED) | |
649 | { | |
650 | if (**strp == '.' | |
651 | && (*(*strp + 1) == 'b' || *(*strp + 1) == 'B' | |
652 | || *(*strp + 1) == 'w' || *(*strp + 1) == 'W')) | |
653 | { | |
654 | *strp += 2; | |
e729279b | 655 | return NULL; |
49f58d10 | 656 | } |
e729279b NC |
657 | |
658 | return _("Invalid size specifier"); | |
49f58d10 JB |
659 | } |
660 | ||
e729279b NC |
661 | /* Special check to ensure that instruction exists for given machine. */ |
662 | ||
49f58d10 JB |
663 | int |
664 | m32c_cgen_insn_supported (CGEN_CPU_DESC cd, | |
665 | const CGEN_INSN *insn) | |
666 | { | |
667 | int machs = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_MACH); | |
aa260854 | 668 | int isas = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_ISA); |
49f58d10 | 669 | |
e729279b | 670 | /* If attributes are absent, assume no restriction. */ |
49f58d10 JB |
671 | if (machs == 0) |
672 | machs = ~0; | |
673 | ||
aa260854 JB |
674 | return ((machs & cd->machs) |
675 | && (isas & cd->isas)); | |
49f58d10 JB |
676 | } |
677 | ||
678 | /* Parse a set of registers, R0,R1,A0,A1,SB,FB. */ | |
679 | ||
680 | static const char * | |
681 | parse_regset (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
682 | const char **strp, | |
683 | int opindex ATTRIBUTE_UNUSED, | |
684 | unsigned long *valuep, | |
e729279b | 685 | int push) |
49f58d10 JB |
686 | { |
687 | const char *errmsg = 0; | |
688 | int regno = 0; | |
689 | ||
690 | *valuep = 0; | |
691 | while (**strp && **strp != ')') | |
692 | { | |
693 | if (**strp == 'r' || **strp == 'R') | |
694 | { | |
695 | ++*strp; | |
696 | regno = **strp - '0'; | |
697 | if (regno > 4) | |
698 | errmsg = _("Register number is not valid"); | |
699 | } | |
700 | else if (**strp == 'a' || **strp == 'A') | |
701 | { | |
702 | ++*strp; | |
703 | regno = **strp - '0'; | |
704 | if (regno > 2) | |
705 | errmsg = _("Register number is not valid"); | |
706 | regno = **strp - '0' + 4; | |
707 | } | |
708 | ||
709 | else if (strncasecmp (*strp, "sb", 2) == 0 || strncasecmp (*strp, "SB", 2) == 0) | |
710 | { | |
711 | regno = 6; | |
712 | ++*strp; | |
713 | } | |
714 | ||
715 | else if (strncasecmp (*strp, "fb", 2) == 0 || strncasecmp (*strp, "FB", 2) == 0) | |
716 | { | |
717 | regno = 7; | |
718 | ++*strp; | |
719 | } | |
720 | ||
721 | if (push) /* Mask is reversed for push. */ | |
722 | *valuep |= 0x80 >> regno; | |
723 | else | |
724 | *valuep |= 1 << regno; | |
725 | ||
726 | ++*strp; | |
727 | if (**strp == ',') | |
728 | { | |
729 | if (*(*strp + 1) == ')') | |
730 | break; | |
731 | ++*strp; | |
732 | } | |
733 | } | |
734 | ||
735 | if (!*strp) | |
736 | errmsg = _("Register list is not valid"); | |
737 | ||
738 | return errmsg; | |
739 | } | |
740 | ||
e729279b | 741 | #define POP 0 |
49f58d10 JB |
742 | #define PUSH 1 |
743 | ||
744 | static const char * | |
745 | parse_pop_regset (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b NC |
746 | const char **strp, |
747 | int opindex ATTRIBUTE_UNUSED, | |
748 | unsigned long *valuep) | |
49f58d10 JB |
749 | { |
750 | return parse_regset (cd, strp, opindex, valuep, POP); | |
751 | } | |
752 | ||
753 | static const char * | |
754 | parse_push_regset (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b NC |
755 | const char **strp, |
756 | int opindex ATTRIBUTE_UNUSED, | |
757 | unsigned long *valuep) | |
49f58d10 JB |
758 | { |
759 | return parse_regset (cd, strp, opindex, valuep, PUSH); | |
760 | } | |
761 | ||
762 | /* -- dis.c */ | |
763 | ||
764 | #include "elf/m32c.h" | |
765 | #include "elf-bfd.h" | |
766 | ||
e729279b NC |
767 | /* Always print the short insn format suffix as ':<char>'. */ |
768 | ||
49f58d10 | 769 | static void |
e729279b | 770 | print_suffix (void * dis_info, char suffix) |
49f58d10 JB |
771 | { |
772 | disassemble_info *info = dis_info; | |
e729279b | 773 | |
49f58d10 JB |
774 | (*info->fprintf_func) (info->stream, ":%c", suffix); |
775 | } | |
776 | ||
777 | static void | |
778 | print_S (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 779 | void * dis_info, |
49f58d10 JB |
780 | long value ATTRIBUTE_UNUSED, |
781 | unsigned int attrs ATTRIBUTE_UNUSED, | |
782 | bfd_vma pc ATTRIBUTE_UNUSED, | |
783 | int length ATTRIBUTE_UNUSED) | |
784 | { | |
785 | print_suffix (dis_info, 's'); | |
786 | } | |
787 | ||
788 | ||
789 | static void | |
790 | print_G (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 791 | void * dis_info, |
49f58d10 JB |
792 | long value ATTRIBUTE_UNUSED, |
793 | unsigned int attrs ATTRIBUTE_UNUSED, | |
794 | bfd_vma pc ATTRIBUTE_UNUSED, | |
795 | int length ATTRIBUTE_UNUSED) | |
796 | { | |
797 | print_suffix (dis_info, 'g'); | |
798 | } | |
799 | ||
800 | static void | |
801 | print_Q (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 802 | void * dis_info, |
49f58d10 JB |
803 | long value ATTRIBUTE_UNUSED, |
804 | unsigned int attrs ATTRIBUTE_UNUSED, | |
805 | bfd_vma pc ATTRIBUTE_UNUSED, | |
806 | int length ATTRIBUTE_UNUSED) | |
807 | { | |
808 | print_suffix (dis_info, 'q'); | |
809 | } | |
810 | ||
811 | static void | |
812 | print_Z (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 813 | void * dis_info, |
49f58d10 JB |
814 | long value ATTRIBUTE_UNUSED, |
815 | unsigned int attrs ATTRIBUTE_UNUSED, | |
816 | bfd_vma pc ATTRIBUTE_UNUSED, | |
817 | int length ATTRIBUTE_UNUSED) | |
818 | { | |
819 | print_suffix (dis_info, 'z'); | |
820 | } | |
821 | ||
e729279b NC |
822 | /* Print the empty suffix. */ |
823 | ||
49f58d10 JB |
824 | static void |
825 | print_X (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 826 | void * dis_info ATTRIBUTE_UNUSED, |
49f58d10 JB |
827 | long value ATTRIBUTE_UNUSED, |
828 | unsigned int attrs ATTRIBUTE_UNUSED, | |
829 | bfd_vma pc ATTRIBUTE_UNUSED, | |
830 | int length ATTRIBUTE_UNUSED) | |
831 | { | |
832 | return; | |
833 | } | |
834 | ||
835 | static void | |
836 | print_r0l_r0h (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 837 | void * dis_info, |
49f58d10 JB |
838 | long value, |
839 | unsigned int attrs ATTRIBUTE_UNUSED, | |
840 | bfd_vma pc ATTRIBUTE_UNUSED, | |
841 | int length ATTRIBUTE_UNUSED) | |
842 | { | |
843 | disassemble_info *info = dis_info; | |
e729279b | 844 | |
49f58d10 JB |
845 | if (value == 0) |
846 | (*info->fprintf_func) (info->stream, "r0h,r0l"); | |
847 | else | |
848 | (*info->fprintf_func) (info->stream, "r0l,r0h"); | |
849 | } | |
850 | ||
851 | static void | |
852 | print_unsigned_bitbase (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 853 | void * dis_info, |
49f58d10 JB |
854 | unsigned long value, |
855 | unsigned int attrs ATTRIBUTE_UNUSED, | |
856 | bfd_vma pc ATTRIBUTE_UNUSED, | |
857 | int length ATTRIBUTE_UNUSED) | |
858 | { | |
859 | disassemble_info *info = dis_info; | |
e729279b | 860 | |
49f58d10 JB |
861 | (*info->fprintf_func) (info->stream, "%ld,0x%lx", value & 0x7, value >> 3); |
862 | } | |
863 | ||
864 | static void | |
865 | print_signed_bitbase (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 866 | void * dis_info, |
49f58d10 JB |
867 | signed long value, |
868 | unsigned int attrs ATTRIBUTE_UNUSED, | |
869 | bfd_vma pc ATTRIBUTE_UNUSED, | |
870 | int length ATTRIBUTE_UNUSED) | |
871 | { | |
872 | disassemble_info *info = dis_info; | |
e729279b | 873 | |
49f58d10 JB |
874 | (*info->fprintf_func) (info->stream, "%ld,%ld", value & 0x7, value >> 3); |
875 | } | |
876 | ||
877 | static void | |
878 | print_size (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b | 879 | void * dis_info, |
49f58d10 JB |
880 | long value ATTRIBUTE_UNUSED, |
881 | unsigned int attrs ATTRIBUTE_UNUSED, | |
882 | bfd_vma pc ATTRIBUTE_UNUSED, | |
883 | int length ATTRIBUTE_UNUSED) | |
884 | { | |
e729279b | 885 | /* Always print the size as '.w'. */ |
49f58d10 | 886 | disassemble_info *info = dis_info; |
e729279b | 887 | |
49f58d10 JB |
888 | (*info->fprintf_func) (info->stream, ".w"); |
889 | } | |
890 | ||
e729279b | 891 | #define POP 0 |
49f58d10 JB |
892 | #define PUSH 1 |
893 | ||
e729279b NC |
894 | static void print_pop_regset (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int); |
895 | static void print_push_regset (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int); | |
49f58d10 JB |
896 | |
897 | /* Print a set of registers, R0,R1,A0,A1,SB,FB. */ | |
898 | ||
899 | static void | |
900 | print_regset (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b NC |
901 | void * dis_info, |
902 | long value, | |
903 | unsigned int attrs ATTRIBUTE_UNUSED, | |
904 | bfd_vma pc ATTRIBUTE_UNUSED, | |
905 | int length ATTRIBUTE_UNUSED, | |
906 | int push) | |
49f58d10 JB |
907 | { |
908 | static char * m16c_register_names [] = | |
e729279b NC |
909 | { |
910 | "r0", "r1", "r2", "r3", "a0", "a1", "sb", "fb" | |
911 | }; | |
49f58d10 JB |
912 | disassemble_info *info = dis_info; |
913 | int mask; | |
914 | int index = 0; | |
915 | char* comma = ""; | |
916 | ||
917 | if (push) | |
918 | mask = 0x80; | |
919 | else | |
920 | mask = 1; | |
921 | ||
922 | if (value & mask) | |
923 | { | |
924 | (*info->fprintf_func) (info->stream, "%s", m16c_register_names [0]); | |
925 | comma = ","; | |
926 | } | |
927 | ||
928 | for (index = 1; index <= 7; ++index) | |
929 | { | |
930 | if (push) | |
931 | mask >>= 1; | |
932 | else | |
933 | mask <<= 1; | |
934 | ||
935 | if (value & mask) | |
936 | { | |
937 | (*info->fprintf_func) (info->stream, "%s%s", comma, | |
938 | m16c_register_names [index]); | |
939 | comma = ","; | |
940 | } | |
941 | } | |
942 | } | |
943 | ||
944 | static void | |
945 | print_pop_regset (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b NC |
946 | void * dis_info, |
947 | long value, | |
948 | unsigned int attrs ATTRIBUTE_UNUSED, | |
949 | bfd_vma pc ATTRIBUTE_UNUSED, | |
950 | int length ATTRIBUTE_UNUSED) | |
49f58d10 JB |
951 | { |
952 | print_regset (cd, dis_info, value, attrs, pc, length, POP); | |
953 | } | |
954 | ||
955 | static void | |
956 | print_push_regset (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, | |
e729279b NC |
957 | void * dis_info, |
958 | long value, | |
959 | unsigned int attrs ATTRIBUTE_UNUSED, | |
960 | bfd_vma pc ATTRIBUTE_UNUSED, | |
961 | int length ATTRIBUTE_UNUSED) | |
49f58d10 JB |
962 | { |
963 | print_regset (cd, dis_info, value, attrs, pc, length, PUSH); | |
964 | } |