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bd2f2e55 DB |
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 | ||
b90efa5b | 7 | Copyright (C) 1996-2015 Free Software Foundation, Inc. |
bd2f2e55 | 8 | |
9b201bb5 | 9 | This file is part of libopcodes. |
bd2f2e55 | 10 | |
9b201bb5 | 11 | This library is free software; you can redistribute it and/or modify |
bd2f2e55 | 12 | it under the terms of the GNU General Public License as published by |
9b201bb5 | 13 | the Free Software Foundation; either version 3, or (at your option) |
bd2f2e55 DB |
14 | any later version. |
15 | ||
9b201bb5 NC |
16 | It is distributed in the hope that it will be useful, but WITHOUT |
17 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
18 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
19 | License for more details. | |
bd2f2e55 DB |
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 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |
24 | ||
9b201bb5 | 25 | |
bd2f2e55 DB |
26 | /* ??? Eventually more and more of this stuff can go to cpu-independent files. |
27 | Keep that in mind. */ | |
28 | ||
29 | #include "sysdep.h" | |
30 | #include <stdio.h> | |
31 | #include "ansidecl.h" | |
32 | #include "bfd.h" | |
33 | #include "symcat.h" | |
34 | #include "mep-desc.h" | |
35 | #include "mep-opc.h" | |
36 | #include "opintl.h" | |
37 | #include "xregex.h" | |
38 | #include "libiberty.h" | |
39 | #include "safe-ctype.h" | |
40 | ||
41 | #undef min | |
42 | #define min(a,b) ((a) < (b) ? (a) : (b)) | |
43 | #undef max | |
44 | #define max(a,b) ((a) > (b) ? (a) : (b)) | |
45 | ||
46 | static const char * parse_insn_normal | |
47 | (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *); | |
48 | \f | |
49 | /* -- assembler routines inserted here. */ | |
50 | ||
51 | /* -- asm.c */ | |
52 | ||
40493983 DD |
53 | #include "elf/mep.h" |
54 | ||
bd2f2e55 | 55 | #define CGEN_VALIDATE_INSN_SUPPORTED |
378a0c07 | 56 | #define mep_cgen_insn_supported mep_cgen_insn_supported_asm |
bd2f2e55 DB |
57 | |
58 | const char * parse_csrn (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); | |
59 | const char * parse_tpreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); | |
60 | const char * parse_spreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *); | |
61 | const char * parse_mep_align (CGEN_CPU_DESC, const char **, enum cgen_operand_type, long *); | |
62 | const char * parse_mep_alignu (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *); | |
63 | static const char * parse_signed16 (CGEN_CPU_DESC, const char **, int, long *); | |
05316052 | 64 | static const char * parse_signed16_range (CGEN_CPU_DESC, const char **, int, long *) ATTRIBUTE_UNUSED; |
bd2f2e55 | 65 | static const char * parse_unsigned16 (CGEN_CPU_DESC, const char **, int, unsigned long *); |
05316052 | 66 | static const char * parse_unsigned16_range (CGEN_CPU_DESC, const char **, int, unsigned long *) ATTRIBUTE_UNUSED; |
bd2f2e55 DB |
67 | static const char * parse_lo16 (CGEN_CPU_DESC, const char **, int, long *, long); |
68 | static const char * parse_unsigned7 (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *); | |
69 | static const char * parse_zero (CGEN_CPU_DESC, const char **, int, long *); | |
70 | ||
71 | const char * | |
72 | parse_csrn (CGEN_CPU_DESC cd, const char **strp, | |
73 | CGEN_KEYWORD *keyword_table, long *field) | |
74 | { | |
75 | const char *err; | |
76 | unsigned long value; | |
77 | ||
78 | err = cgen_parse_keyword (cd, strp, keyword_table, field); | |
79 | if (!err) | |
80 | return NULL; | |
81 | ||
82 | err = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, & value); | |
83 | if (err) | |
84 | return err; | |
85 | *field = value; | |
86 | return NULL; | |
87 | } | |
88 | ||
89 | /* begin-cop-ip-parse-handlers */ | |
3526b680 DD |
90 | static const char * |
91 | parse_ivc2_cr (CGEN_CPU_DESC, | |
92 | const char **, | |
93 | CGEN_KEYWORD *, | |
94 | long *) ATTRIBUTE_UNUSED; | |
95 | static const char * | |
96 | parse_ivc2_cr (CGEN_CPU_DESC cd, | |
97 | const char **strp, | |
98 | CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED, | |
99 | long *field) | |
100 | { | |
101 | return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr_ivc2, field); | |
102 | } | |
103 | static const char * | |
104 | parse_ivc2_ccr (CGEN_CPU_DESC, | |
105 | const char **, | |
106 | CGEN_KEYWORD *, | |
107 | long *) ATTRIBUTE_UNUSED; | |
108 | static const char * | |
109 | parse_ivc2_ccr (CGEN_CPU_DESC cd, | |
110 | const char **strp, | |
111 | CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED, | |
112 | long *field) | |
113 | { | |
114 | return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, field); | |
115 | } | |
bd2f2e55 DB |
116 | /* end-cop-ip-parse-handlers */ |
117 | ||
118 | const char * | |
119 | parse_tpreg (CGEN_CPU_DESC cd, const char ** strp, | |
120 | CGEN_KEYWORD *keyword_table, long *field) | |
121 | { | |
122 | const char *err; | |
123 | ||
124 | err = cgen_parse_keyword (cd, strp, keyword_table, field); | |
125 | if (err) | |
126 | return err; | |
127 | if (*field != 13) | |
128 | return _("Only $tp or $13 allowed for this opcode"); | |
129 | return NULL; | |
130 | } | |
131 | ||
132 | const char * | |
133 | parse_spreg (CGEN_CPU_DESC cd, const char ** strp, | |
134 | CGEN_KEYWORD *keyword_table, long *field) | |
135 | { | |
136 | const char *err; | |
137 | ||
138 | err = cgen_parse_keyword (cd, strp, keyword_table, field); | |
139 | if (err) | |
140 | return err; | |
141 | if (*field != 15) | |
142 | return _("Only $sp or $15 allowed for this opcode"); | |
143 | return NULL; | |
144 | } | |
145 | ||
146 | const char * | |
147 | parse_mep_align (CGEN_CPU_DESC cd, const char ** strp, | |
148 | enum cgen_operand_type type, long *field) | |
149 | { | |
150 | long lsbs = 0; | |
151 | const char *err; | |
152 | ||
153 | switch (type) | |
154 | { | |
155 | case MEP_OPERAND_PCREL8A2: | |
156 | case MEP_OPERAND_PCREL12A2: | |
157 | case MEP_OPERAND_PCREL17A2: | |
158 | case MEP_OPERAND_PCREL24A2: | |
bd2f2e55 DB |
159 | err = cgen_parse_signed_integer (cd, strp, type, field); |
160 | break; | |
161 | case MEP_OPERAND_PCABS24A2: | |
162 | case MEP_OPERAND_UDISP7: | |
163 | case MEP_OPERAND_UDISP7A2: | |
164 | case MEP_OPERAND_UDISP7A4: | |
165 | case MEP_OPERAND_UIMM7A4: | |
166 | case MEP_OPERAND_ADDR24A4: | |
167 | err = cgen_parse_unsigned_integer (cd, strp, type, (unsigned long *) field); | |
168 | break; | |
169 | default: | |
170 | abort(); | |
171 | } | |
172 | if (err) | |
173 | return err; | |
174 | switch (type) | |
175 | { | |
176 | case MEP_OPERAND_UDISP7: | |
177 | lsbs = 0; | |
178 | break; | |
179 | case MEP_OPERAND_PCREL8A2: | |
180 | case MEP_OPERAND_PCREL12A2: | |
181 | case MEP_OPERAND_PCREL17A2: | |
182 | case MEP_OPERAND_PCREL24A2: | |
183 | case MEP_OPERAND_PCABS24A2: | |
184 | case MEP_OPERAND_UDISP7A2: | |
bd2f2e55 DB |
185 | lsbs = *field & 1; |
186 | break; | |
187 | case MEP_OPERAND_UDISP7A4: | |
188 | case MEP_OPERAND_UIMM7A4: | |
189 | case MEP_OPERAND_ADDR24A4: | |
bd2f2e55 DB |
190 | lsbs = *field & 3; |
191 | break; | |
bd2f2e55 DB |
192 | lsbs = *field & 7; |
193 | break; | |
194 | default: | |
195 | /* Safe assumption? */ | |
196 | abort (); | |
197 | } | |
198 | if (lsbs) | |
199 | return "Value is not aligned enough"; | |
200 | return NULL; | |
201 | } | |
202 | ||
203 | const char * | |
204 | parse_mep_alignu (CGEN_CPU_DESC cd, const char ** strp, | |
205 | enum cgen_operand_type type, unsigned long *field) | |
206 | { | |
207 | return parse_mep_align (cd, strp, type, (long *) field); | |
208 | } | |
209 | ||
210 | ||
211 | /* Handle %lo(), %tpoff(), %sdaoff(), %hi(), and other signed | |
212 | constants in a signed context. */ | |
213 | ||
214 | static const char * | |
215 | parse_signed16 (CGEN_CPU_DESC cd, | |
216 | const char **strp, | |
217 | int opindex, | |
218 | long *valuep) | |
219 | { | |
220 | return parse_lo16 (cd, strp, opindex, valuep, 1); | |
221 | } | |
222 | ||
223 | static const char * | |
224 | parse_lo16 (CGEN_CPU_DESC cd, | |
225 | const char **strp, | |
226 | int opindex, | |
227 | long *valuep, | |
228 | long signedp) | |
229 | { | |
230 | const char *errmsg; | |
231 | enum cgen_parse_operand_result result_type; | |
232 | bfd_vma value; | |
233 | ||
234 | if (strncasecmp (*strp, "%lo(", 4) == 0) | |
235 | { | |
236 | *strp += 4; | |
237 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16, | |
238 | & result_type, & value); | |
239 | if (**strp != ')') | |
240 | return _("missing `)'"); | |
241 | ++*strp; | |
242 | if (errmsg == NULL | |
243 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
244 | value &= 0xffff; | |
245 | if (signedp) | |
246 | *valuep = (long)(short) value; | |
247 | else | |
248 | *valuep = value; | |
249 | return errmsg; | |
250 | } | |
251 | ||
252 | if (strncasecmp (*strp, "%hi(", 4) == 0) | |
253 | { | |
254 | *strp += 4; | |
255 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S, | |
256 | & result_type, & value); | |
257 | if (**strp != ')') | |
258 | return _("missing `)'"); | |
259 | ++*strp; | |
260 | if (errmsg == NULL | |
261 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
262 | value = (value + 0x8000) >> 16; | |
263 | *valuep = value; | |
264 | return errmsg; | |
265 | } | |
266 | ||
267 | if (strncasecmp (*strp, "%uhi(", 5) == 0) | |
268 | { | |
269 | *strp += 5; | |
270 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U, | |
271 | & result_type, & value); | |
272 | if (**strp != ')') | |
273 | return _("missing `)'"); | |
274 | ++*strp; | |
275 | if (errmsg == NULL | |
276 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
277 | value = value >> 16; | |
278 | *valuep = value; | |
279 | return errmsg; | |
280 | } | |
281 | ||
282 | if (strncasecmp (*strp, "%sdaoff(", 8) == 0) | |
283 | { | |
284 | *strp += 8; | |
285 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL, | |
286 | NULL, & value); | |
287 | if (**strp != ')') | |
288 | return _("missing `)'"); | |
289 | ++*strp; | |
290 | *valuep = value; | |
291 | return errmsg; | |
292 | } | |
293 | ||
294 | if (strncasecmp (*strp, "%tpoff(", 7) == 0) | |
295 | { | |
296 | *strp += 7; | |
297 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL, | |
298 | NULL, & value); | |
299 | if (**strp != ')') | |
300 | return _("missing `)'"); | |
301 | ++*strp; | |
302 | *valuep = value; | |
303 | return errmsg; | |
304 | } | |
305 | ||
306 | if (**strp == '%') | |
307 | return _("invalid %function() here"); | |
308 | ||
309 | return cgen_parse_signed_integer (cd, strp, opindex, valuep); | |
310 | } | |
311 | ||
312 | static const char * | |
313 | parse_unsigned16 (CGEN_CPU_DESC cd, | |
314 | const char **strp, | |
315 | int opindex, | |
316 | unsigned long *valuep) | |
317 | { | |
318 | return parse_lo16 (cd, strp, opindex, (long *) valuep, 0); | |
319 | } | |
320 | ||
d285268e DD |
321 | static const char * |
322 | parse_signed16_range (CGEN_CPU_DESC cd, | |
323 | const char **strp, | |
324 | int opindex, | |
325 | signed long *valuep) | |
326 | { | |
327 | const char *errmsg = 0; | |
328 | signed long value; | |
329 | ||
330 | errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); | |
331 | if (errmsg) | |
332 | return errmsg; | |
333 | ||
334 | if (value < -32768 || value > 32767) | |
335 | return _("Immediate is out of range -32768 to 32767"); | |
336 | ||
337 | *valuep = value; | |
338 | return 0; | |
339 | } | |
340 | ||
341 | static const char * | |
342 | parse_unsigned16_range (CGEN_CPU_DESC cd, | |
343 | const char **strp, | |
344 | int opindex, | |
345 | unsigned long *valuep) | |
346 | { | |
347 | const char *errmsg = 0; | |
348 | unsigned long value; | |
349 | ||
350 | errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value); | |
351 | if (errmsg) | |
352 | return errmsg; | |
353 | ||
354 | if (value > 65535) | |
355 | return _("Immediate is out of range 0 to 65535"); | |
356 | ||
357 | *valuep = value; | |
358 | return 0; | |
359 | } | |
360 | ||
bd2f2e55 DB |
361 | /* A special case of parse_signed16 which accepts only the value zero. */ |
362 | ||
363 | static const char * | |
364 | parse_zero (CGEN_CPU_DESC cd, const char **strp, int opindex, long *valuep) | |
365 | { | |
366 | const char *errmsg; | |
367 | enum cgen_parse_operand_result result_type; | |
368 | bfd_vma value; | |
369 | ||
370 | /*fprintf(stderr, "dj: signed parse opindex `%s'\n", *strp);*/ | |
371 | ||
372 | /* Prevent ($ry) from being attempted as an expression on 'sw $rx,($ry)'. | |
373 | It will fail and cause ry to be listed as an undefined symbol in the | |
374 | listing. */ | |
375 | if (strncmp (*strp, "($", 2) == 0) | |
376 | return "not zero"; /* any string will do -- will never be seen. */ | |
377 | ||
378 | if (strncasecmp (*strp, "%lo(", 4) == 0) | |
379 | { | |
380 | *strp += 4; | |
381 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16, | |
382 | &result_type, &value); | |
383 | if (**strp != ')') | |
384 | return "missing `)'"; | |
385 | ++*strp; | |
386 | if (errmsg == NULL | |
387 | && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) | |
388 | return "not zero"; /* any string will do -- will never be seen. */ | |
389 | *valuep = value; | |
390 | return errmsg; | |
391 | } | |
392 | ||
393 | if (strncasecmp (*strp, "%hi(", 4) == 0) | |
394 | { | |
395 | *strp += 4; | |
396 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S, | |
397 | &result_type, &value); | |
398 | if (**strp != ')') | |
399 | return "missing `)'"; | |
400 | ++*strp; | |
401 | if (errmsg == NULL | |
402 | && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) | |
403 | return "not zero"; /* any string will do -- will never be seen. */ | |
404 | *valuep = value; | |
405 | return errmsg; | |
406 | } | |
407 | ||
408 | if (strncasecmp (*strp, "%uhi(", 5) == 0) | |
409 | { | |
410 | *strp += 5; | |
411 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U, | |
412 | &result_type, &value); | |
413 | if (**strp != ')') | |
414 | return "missing `)'"; | |
415 | ++*strp; | |
416 | if (errmsg == NULL | |
417 | && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) | |
418 | return "not zero"; /* any string will do -- will never be seen. */ | |
419 | *valuep = value; | |
420 | return errmsg; | |
421 | } | |
422 | ||
423 | if (strncasecmp (*strp, "%sdaoff(", 8) == 0) | |
424 | { | |
425 | *strp += 8; | |
426 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL, | |
427 | &result_type, &value); | |
428 | if (**strp != ')') | |
429 | return "missing `)'"; | |
430 | ++*strp; | |
431 | if (errmsg == NULL | |
432 | && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) | |
433 | return "not zero"; /* any string will do -- will never be seen. */ | |
434 | *valuep = value; | |
435 | return errmsg; | |
436 | } | |
437 | ||
438 | if (strncasecmp (*strp, "%tpoff(", 7) == 0) | |
439 | { | |
440 | *strp += 7; | |
441 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL, | |
442 | &result_type, &value); | |
443 | if (**strp != ')') | |
444 | return "missing `)'"; | |
445 | ++*strp; | |
446 | if (errmsg == NULL | |
447 | && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) | |
448 | return "not zero"; /* any string will do -- will never be seen. */ | |
449 | *valuep = value; | |
450 | return errmsg; | |
451 | } | |
452 | ||
453 | if (**strp == '%') | |
454 | return "invalid %function() here"; | |
455 | ||
456 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_NONE, | |
457 | &result_type, &value); | |
458 | if (errmsg == NULL | |
459 | && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0)) | |
460 | return "not zero"; /* any string will do -- will never be seen. */ | |
461 | ||
462 | return errmsg; | |
463 | } | |
464 | ||
465 | static const char * | |
466 | parse_unsigned7 (CGEN_CPU_DESC cd, const char **strp, | |
467 | enum cgen_operand_type opindex, unsigned long *valuep) | |
468 | { | |
469 | const char *errmsg; | |
470 | bfd_vma value; | |
471 | ||
472 | /* fprintf(stderr, "dj: unsigned7 parse `%s'\n", *strp); */ | |
473 | ||
474 | if (strncasecmp (*strp, "%tpoff(", 7) == 0) | |
475 | { | |
476 | int reloc; | |
477 | *strp += 7; | |
478 | switch (opindex) | |
479 | { | |
480 | case MEP_OPERAND_UDISP7: | |
481 | reloc = BFD_RELOC_MEP_TPREL7; | |
482 | break; | |
483 | case MEP_OPERAND_UDISP7A2: | |
484 | reloc = BFD_RELOC_MEP_TPREL7A2; | |
485 | break; | |
486 | case MEP_OPERAND_UDISP7A4: | |
487 | reloc = BFD_RELOC_MEP_TPREL7A4; | |
488 | break; | |
489 | default: | |
490 | /* Safe assumption? */ | |
491 | abort (); | |
492 | } | |
493 | errmsg = cgen_parse_address (cd, strp, opindex, reloc, | |
494 | NULL, &value); | |
495 | if (**strp != ')') | |
496 | return "missing `)'"; | |
497 | ++*strp; | |
498 | *valuep = value; | |
499 | return errmsg; | |
500 | } | |
501 | ||
502 | if (**strp == '%') | |
503 | return _("invalid %function() here"); | |
504 | ||
505 | return parse_mep_alignu (cd, strp, opindex, valuep); | |
506 | } | |
507 | ||
40493983 DD |
508 | static ATTRIBUTE_UNUSED const char * |
509 | parse_cdisp10 (CGEN_CPU_DESC cd, | |
510 | const char **strp, | |
511 | int opindex, | |
512 | long *valuep) | |
513 | { | |
514 | const char *errmsg = 0; | |
515 | signed long value; | |
516 | long have_zero = 0; | |
517 | int wide = 0; | |
518 | int alignment; | |
519 | ||
520 | switch (opindex) | |
521 | { | |
522 | case MEP_OPERAND_CDISP10A4: | |
523 | alignment = 2; | |
524 | break; | |
525 | case MEP_OPERAND_CDISP10A2: | |
526 | alignment = 1; | |
527 | break; | |
528 | case MEP_OPERAND_CDISP10: | |
529 | default: | |
530 | alignment = 0; | |
531 | break; | |
532 | } | |
533 | ||
eb956800 | 534 | if ((MEP_CPU & EF_MEP_CPU_MASK) == EF_MEP_CPU_C5) |
40493983 DD |
535 | wide = 1; |
536 | ||
537 | if (strncmp (*strp, "0x0", 3) == 0 | |
538 | || (**strp == '0' && *(*strp + 1) != 'x')) | |
539 | have_zero = 1; | |
540 | ||
541 | errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value); | |
542 | if (errmsg) | |
543 | return errmsg; | |
544 | ||
545 | if (wide) | |
546 | { | |
547 | if (value < -512 || value > 511) | |
548 | return _("Immediate is out of range -512 to 511"); | |
549 | } | |
550 | else | |
551 | { | |
552 | if (value < -128 || value > 127) | |
553 | return _("Immediate is out of range -128 to 127"); | |
554 | } | |
555 | ||
556 | if (value & ((1<<alignment)-1)) | |
557 | return _("Value is not aligned enough"); | |
558 | ||
559 | /* If this field may require a relocation then use larger dsp16. */ | |
560 | if (! have_zero && value == 0) | |
561 | return (wide ? _("Immediate is out of range -512 to 511") | |
562 | : _("Immediate is out of range -128 to 127")); | |
563 | ||
564 | *valuep = value; | |
565 | return 0; | |
566 | } | |
567 | ||
bd2f2e55 DB |
568 | /* BEGIN LIGHTWEIGHT MACRO PROCESSOR. */ |
569 | ||
570 | #define MAXARGS 9 | |
571 | ||
572 | typedef struct | |
573 | { | |
574 | char *name; | |
575 | char *expansion; | |
576 | } macro; | |
577 | ||
578 | typedef struct | |
579 | { | |
580 | const char *start; | |
581 | int len; | |
582 | } arg; | |
583 | ||
584 | macro macros[] = | |
585 | { | |
586 | { "sizeof", "(`1.end + (- `1))"}, | |
587 | { "startof", "(`1 | 0)" }, | |
588 | { "align4", "(`1&(~3))"}, | |
589 | /*{ "hi", "(((`1+0x8000)>>16) & 0xffff)" }, */ | |
590 | /*{ "lo", "(`1 & 0xffff)" }, */ | |
591 | /*{ "sdaoff", "((`1-__sdabase) & 0x7f)"}, */ | |
592 | /*{ "tpoff", "((`1-__tpbase) & 0x7f)"}, */ | |
593 | { 0,0 } | |
594 | }; | |
595 | ||
596 | static char * expand_string (const char *, int); | |
597 | ||
598 | static const char * | |
599 | mep_cgen_expand_macros_and_parse_operand | |
600 | (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); | |
601 | ||
602 | static char * | |
603 | str_append (char *dest, const char *input, int len) | |
604 | { | |
605 | char *new_dest; | |
606 | int oldlen; | |
607 | ||
608 | if (len == 0) | |
609 | return dest; | |
610 | /* printf("str_append: <<%s>>, <<%s>>, %d\n", dest, input, len); */ | |
611 | oldlen = (dest ? strlen(dest) : 0); | |
612 | new_dest = realloc (dest, oldlen + len + 1); | |
613 | memset (new_dest + oldlen, 0, len + 1); | |
614 | return strncat (new_dest, input, len); | |
615 | } | |
616 | ||
617 | static macro * | |
618 | lookup_macro (const char *name) | |
619 | { | |
620 | macro *m; | |
621 | ||
622 | for (m = macros; m->name; ++m) | |
623 | if (strncmp (m->name, name, strlen(m->name)) == 0) | |
624 | return m; | |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
629 | static char * | |
630 | expand_macro (arg *args, int narg, macro *mac) | |
631 | { | |
632 | char *result = 0, *rescanned_result = 0; | |
633 | char *e = mac->expansion; | |
634 | char *mark = e; | |
91d6fa6a | 635 | int mac_arg = 0; |
bd2f2e55 DB |
636 | |
637 | /* printf("expanding macro %s with %d args\n", mac->name, narg + 1); */ | |
638 | while (*e) | |
639 | { | |
640 | if (*e == '`' && | |
641 | (*e+1) && | |
642 | ((*(e + 1) - '1') <= MAXARGS) && | |
643 | ((*(e + 1) - '1') <= narg)) | |
644 | { | |
645 | result = str_append (result, mark, e - mark); | |
91d6fa6a NC |
646 | mac_arg = (*(e + 1) - '1'); |
647 | /* printf("replacing `%d with %s\n", mac_arg+1, args[mac_arg].start); */ | |
648 | result = str_append (result, args[mac_arg].start, args[mac_arg].len); | |
bd2f2e55 DB |
649 | ++e; |
650 | mark = e+1; | |
651 | } | |
652 | ++e; | |
653 | } | |
654 | ||
655 | if (mark != e) | |
656 | result = str_append (result, mark, e - mark); | |
657 | ||
658 | if (result) | |
659 | { | |
660 | rescanned_result = expand_string (result, 0); | |
661 | free (result); | |
662 | return rescanned_result; | |
663 | } | |
664 | else | |
665 | return result; | |
666 | } | |
667 | ||
668 | #define IN_TEXT 0 | |
669 | #define IN_ARGS 1 | |
670 | ||
671 | static char * | |
672 | expand_string (const char *in, int first_only) | |
673 | { | |
674 | int num_expansions = 0; | |
675 | int depth = 0; | |
676 | int narg = -1; | |
677 | arg args[MAXARGS]; | |
678 | int state = IN_TEXT; | |
679 | const char *mark = in; | |
91d6fa6a | 680 | macro *pmacro = NULL; |
bd2f2e55 DB |
681 | char *expansion = 0; |
682 | char *result = 0; | |
683 | ||
684 | while (*in) | |
685 | { | |
686 | switch (state) | |
687 | { | |
688 | case IN_TEXT: | |
689 | if (*in == '%' && *(in + 1) && (!first_only || num_expansions == 0)) | |
690 | { | |
91d6fa6a NC |
691 | pmacro = lookup_macro (in + 1); |
692 | if (pmacro) | |
bd2f2e55 DB |
693 | { |
694 | /* printf("entering state %d at '%s'...\n", state, in); */ | |
695 | result = str_append (result, mark, in - mark); | |
696 | mark = in; | |
91d6fa6a | 697 | in += 1 + strlen (pmacro->name); |
bd2f2e55 DB |
698 | while (*in == ' ') ++in; |
699 | if (*in != '(') | |
700 | { | |
701 | state = IN_TEXT; | |
91d6fa6a | 702 | pmacro = NULL; |
bd2f2e55 DB |
703 | } |
704 | else | |
705 | { | |
706 | state = IN_ARGS; | |
707 | narg = 0; | |
708 | args[narg].start = in + 1; | |
709 | args[narg].len = 0; | |
710 | mark = in + 1; | |
711 | } | |
712 | } | |
713 | } | |
714 | break; | |
715 | case IN_ARGS: | |
716 | if (depth == 0) | |
717 | { | |
718 | switch (*in) | |
719 | { | |
720 | case ',': | |
721 | narg++; | |
722 | args[narg].start = (in + 1); | |
723 | args[narg].len = 0; | |
724 | break; | |
725 | case ')': | |
726 | state = IN_TEXT; | |
727 | /* printf("entering state %d at '%s'...\n", state, in); */ | |
91d6fa6a | 728 | if (pmacro) |
bd2f2e55 DB |
729 | { |
730 | expansion = 0; | |
91d6fa6a | 731 | expansion = expand_macro (args, narg, pmacro); |
bd2f2e55 DB |
732 | num_expansions++; |
733 | if (expansion) | |
734 | { | |
735 | result = str_append (result, expansion, strlen (expansion)); | |
736 | free (expansion); | |
737 | } | |
738 | } | |
739 | else | |
740 | { | |
741 | result = str_append (result, mark, in - mark); | |
742 | } | |
91d6fa6a | 743 | pmacro = NULL; |
bd2f2e55 DB |
744 | mark = in + 1; |
745 | break; | |
746 | case '(': | |
747 | depth++; | |
748 | default: | |
749 | args[narg].len++; | |
750 | break; | |
751 | } | |
752 | } | |
753 | else | |
754 | { | |
755 | if (*in == ')') | |
756 | depth--; | |
757 | if (narg > -1) | |
758 | args[narg].len++; | |
759 | } | |
760 | ||
761 | } | |
762 | ++in; | |
763 | } | |
764 | ||
765 | if (mark != in) | |
766 | result = str_append (result, mark, in - mark); | |
767 | ||
768 | return result; | |
769 | } | |
770 | ||
771 | #undef IN_ARGS | |
772 | #undef IN_TEXT | |
773 | #undef MAXARGS | |
774 | ||
775 | ||
776 | /* END LIGHTWEIGHT MACRO PROCESSOR. */ | |
777 | ||
778 | const char * mep_cgen_parse_operand | |
779 | (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); | |
780 | ||
781 | const char * | |
782 | mep_cgen_expand_macros_and_parse_operand (CGEN_CPU_DESC cd, int opindex, | |
783 | const char ** strp_in, CGEN_FIELDS * fields) | |
784 | { | |
785 | const char * errmsg = NULL; | |
786 | char *str = 0, *hold = 0; | |
787 | const char **strp = 0; | |
788 | ||
789 | /* Set up a new pointer to macro-expanded string. */ | |
790 | str = expand_string (*strp_in, 1); | |
791 | /* fprintf (stderr, " expanded <<%s>> to <<%s>>\n", *strp_in, str); */ | |
792 | ||
793 | hold = str; | |
794 | strp = (const char **)(&str); | |
795 | ||
796 | errmsg = mep_cgen_parse_operand (cd, opindex, strp, fields); | |
797 | ||
798 | /* Now work out the advance. */ | |
799 | if (strlen (str) == 0) | |
800 | *strp_in += strlen (*strp_in); | |
801 | ||
802 | else | |
803 | { | |
804 | if (strstr (*strp_in, str)) | |
805 | /* A macro-expansion was pulled off the front. */ | |
806 | *strp_in = strstr (*strp_in, str); | |
807 | else | |
808 | /* A non-macro-expansion was pulled off the front. */ | |
809 | *strp_in += (str - hold); | |
810 | } | |
811 | ||
812 | if (hold) | |
813 | free (hold); | |
814 | ||
815 | return errmsg; | |
816 | } | |
817 | ||
818 | #define CGEN_ASM_INIT_HOOK (cd->parse_operand = mep_cgen_expand_macros_and_parse_operand); | |
819 | ||
820 | /* -- dis.c */ | |
821 | ||
822 | const char * mep_cgen_parse_operand | |
823 | (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); | |
824 | ||
825 | /* Main entry point for operand parsing. | |
826 | ||
827 | This function is basically just a big switch statement. Earlier versions | |
828 | used tables to look up the function to use, but | |
829 | - if the table contains both assembler and disassembler functions then | |
830 | the disassembler contains much of the assembler and vice-versa, | |
831 | - there's a lot of inlining possibilities as things grow, | |
832 | - using a switch statement avoids the function call overhead. | |
833 | ||
834 | This function could be moved into `parse_insn_normal', but keeping it | |
835 | separate makes clear the interface between `parse_insn_normal' and each of | |
836 | the handlers. */ | |
837 | ||
838 | const char * | |
839 | mep_cgen_parse_operand (CGEN_CPU_DESC cd, | |
840 | int opindex, | |
841 | const char ** strp, | |
842 | CGEN_FIELDS * fields) | |
843 | { | |
844 | const char * errmsg = NULL; | |
845 | /* Used by scalar operands that still need to be parsed. */ | |
846 | long junk ATTRIBUTE_UNUSED; | |
847 | ||
848 | switch (opindex) | |
849 | { | |
850 | case MEP_OPERAND_ADDR24A4 : | |
851 | errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_ADDR24A4, (unsigned long *) (& fields->f_24u8a4n)); | |
852 | break; | |
40493983 DD |
853 | case MEP_OPERAND_C5RMUIMM20 : |
854 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_C5RMUIMM20, (unsigned long *) (& fields->f_c5_rmuimm20)); | |
855 | break; | |
856 | case MEP_OPERAND_C5RNMUIMM24 : | |
857 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_C5RNMUIMM24, (unsigned long *) (& fields->f_c5_rnmuimm24)); | |
858 | break; | |
bd2f2e55 DB |
859 | case MEP_OPERAND_CALLNUM : |
860 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CALLNUM, (unsigned long *) (& fields->f_callnum)); | |
861 | break; | |
862 | case MEP_OPERAND_CCCC : | |
863 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CCCC, (unsigned long *) (& fields->f_rm)); | |
864 | break; | |
865 | case MEP_OPERAND_CCRN : | |
866 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr, & fields->f_ccrn); | |
867 | break; | |
40493983 DD |
868 | case MEP_OPERAND_CDISP10 : |
869 | errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10, (long *) (& fields->f_cdisp10)); | |
870 | break; | |
871 | case MEP_OPERAND_CDISP10A2 : | |
872 | errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A2, (long *) (& fields->f_cdisp10)); | |
bd2f2e55 | 873 | break; |
40493983 DD |
874 | case MEP_OPERAND_CDISP10A4 : |
875 | errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A4, (long *) (& fields->f_cdisp10)); | |
bd2f2e55 | 876 | break; |
40493983 DD |
877 | case MEP_OPERAND_CDISP10A8 : |
878 | errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A8, (long *) (& fields->f_cdisp10)); | |
bd2f2e55 | 879 | break; |
40493983 DD |
880 | case MEP_OPERAND_CDISP12 : |
881 | errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_CDISP12, (long *) (& fields->f_12s20)); | |
bd2f2e55 DB |
882 | break; |
883 | case MEP_OPERAND_CIMM4 : | |
884 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CIMM4, (unsigned long *) (& fields->f_rn)); | |
885 | break; | |
886 | case MEP_OPERAND_CIMM5 : | |
887 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CIMM5, (unsigned long *) (& fields->f_5u24)); | |
888 | break; | |
889 | case MEP_OPERAND_CODE16 : | |
890 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CODE16, (unsigned long *) (& fields->f_16u16)); | |
891 | break; | |
892 | case MEP_OPERAND_CODE24 : | |
893 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CODE24, (unsigned long *) (& fields->f_24u4n)); | |
894 | break; | |
895 | case MEP_OPERAND_CP_FLAG : | |
896 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr, & junk); | |
897 | break; | |
898 | case MEP_OPERAND_CRN : | |
899 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr, & fields->f_crn); | |
900 | break; | |
901 | case MEP_OPERAND_CRN64 : | |
902 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_crn); | |
903 | break; | |
904 | case MEP_OPERAND_CRNX : | |
905 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr, & fields->f_crnx); | |
906 | break; | |
907 | case MEP_OPERAND_CRNX64 : | |
908 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_crnx); | |
909 | break; | |
3526b680 DD |
910 | case MEP_OPERAND_CROC : |
911 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u7); | |
912 | break; | |
913 | case MEP_OPERAND_CROP : | |
914 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u23); | |
915 | break; | |
916 | case MEP_OPERAND_CRPC : | |
917 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u26); | |
918 | break; | |
919 | case MEP_OPERAND_CRPP : | |
920 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u18); | |
921 | break; | |
922 | case MEP_OPERAND_CRQC : | |
923 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u21); | |
924 | break; | |
925 | case MEP_OPERAND_CRQP : | |
926 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u13); | |
927 | break; | |
bd2f2e55 DB |
928 | case MEP_OPERAND_CSRN : |
929 | errmsg = parse_csrn (cd, strp, & mep_cgen_opval_h_csr, & fields->f_csrn); | |
930 | break; | |
931 | case MEP_OPERAND_CSRN_IDX : | |
932 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, (unsigned long *) (& fields->f_csrn)); | |
933 | break; | |
934 | case MEP_OPERAND_DBG : | |
935 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
936 | break; | |
937 | case MEP_OPERAND_DEPC : | |
938 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
939 | break; | |
940 | case MEP_OPERAND_EPC : | |
941 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
942 | break; | |
943 | case MEP_OPERAND_EXC : | |
944 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
945 | break; | |
bd2f2e55 DB |
946 | case MEP_OPERAND_HI : |
947 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
948 | break; | |
3526b680 | 949 | case MEP_OPERAND_IMM16P0 : |
d285268e | 950 | errmsg = parse_unsigned16_range (cd, strp, MEP_OPERAND_IMM16P0, (unsigned long *) (& fields->f_ivc2_imm16p0)); |
3526b680 DD |
951 | break; |
952 | case MEP_OPERAND_IMM3P12 : | |
953 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P12, (unsigned long *) (& fields->f_ivc2_3u12)); | |
954 | break; | |
955 | case MEP_OPERAND_IMM3P25 : | |
956 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P25, (unsigned long *) (& fields->f_ivc2_3u25)); | |
957 | break; | |
958 | case MEP_OPERAND_IMM3P4 : | |
959 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P4, (unsigned long *) (& fields->f_ivc2_3u4)); | |
960 | break; | |
961 | case MEP_OPERAND_IMM3P5 : | |
962 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P5, (unsigned long *) (& fields->f_ivc2_3u5)); | |
963 | break; | |
964 | case MEP_OPERAND_IMM3P9 : | |
965 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P9, (unsigned long *) (& fields->f_ivc2_3u9)); | |
966 | break; | |
967 | case MEP_OPERAND_IMM4P10 : | |
968 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P10, (unsigned long *) (& fields->f_ivc2_4u10)); | |
969 | break; | |
970 | case MEP_OPERAND_IMM4P4 : | |
971 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P4, (unsigned long *) (& fields->f_ivc2_4u4)); | |
972 | break; | |
973 | case MEP_OPERAND_IMM4P8 : | |
974 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P8, (unsigned long *) (& fields->f_ivc2_4u8)); | |
975 | break; | |
976 | case MEP_OPERAND_IMM5P23 : | |
977 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P23, (unsigned long *) (& fields->f_ivc2_5u23)); | |
978 | break; | |
979 | case MEP_OPERAND_IMM5P3 : | |
980 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P3, (unsigned long *) (& fields->f_ivc2_5u3)); | |
981 | break; | |
982 | case MEP_OPERAND_IMM5P7 : | |
983 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P7, (unsigned long *) (& fields->f_ivc2_5u7)); | |
984 | break; | |
985 | case MEP_OPERAND_IMM5P8 : | |
986 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P8, (unsigned long *) (& fields->f_ivc2_5u8)); | |
987 | break; | |
988 | case MEP_OPERAND_IMM6P2 : | |
989 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM6P2, (unsigned long *) (& fields->f_ivc2_6u2)); | |
990 | break; | |
991 | case MEP_OPERAND_IMM6P6 : | |
992 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM6P6, (unsigned long *) (& fields->f_ivc2_6u6)); | |
993 | break; | |
994 | case MEP_OPERAND_IMM8P0 : | |
995 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P0, (unsigned long *) (& fields->f_ivc2_8u0)); | |
996 | break; | |
997 | case MEP_OPERAND_IMM8P20 : | |
998 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P20, (unsigned long *) (& fields->f_ivc2_8u20)); | |
999 | break; | |
1000 | case MEP_OPERAND_IMM8P4 : | |
1001 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P4, (unsigned long *) (& fields->f_ivc2_8u4)); | |
1002 | break; | |
1003 | case MEP_OPERAND_IVC_X_0_2 : | |
1004 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_2, (unsigned long *) (& fields->f_ivc2_2u0)); | |
1005 | break; | |
1006 | case MEP_OPERAND_IVC_X_0_3 : | |
1007 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_3, (unsigned long *) (& fields->f_ivc2_3u0)); | |
1008 | break; | |
1009 | case MEP_OPERAND_IVC_X_0_4 : | |
1010 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_4, (unsigned long *) (& fields->f_ivc2_4u0)); | |
1011 | break; | |
1012 | case MEP_OPERAND_IVC_X_0_5 : | |
1013 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_5, (unsigned long *) (& fields->f_ivc2_5u0)); | |
1014 | break; | |
1015 | case MEP_OPERAND_IVC_X_6_1 : | |
1016 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_1, (unsigned long *) (& fields->f_ivc2_1u6)); | |
1017 | break; | |
1018 | case MEP_OPERAND_IVC_X_6_2 : | |
1019 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_2, (unsigned long *) (& fields->f_ivc2_2u6)); | |
1020 | break; | |
1021 | case MEP_OPERAND_IVC_X_6_3 : | |
1022 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_3, (unsigned long *) (& fields->f_ivc2_3u6)); | |
1023 | break; | |
dab97f24 DD |
1024 | case MEP_OPERAND_IVC2_ACC0_0 : |
1025 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1026 | break; | |
1027 | case MEP_OPERAND_IVC2_ACC0_1 : | |
1028 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1029 | break; | |
1030 | case MEP_OPERAND_IVC2_ACC0_2 : | |
1031 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1032 | break; | |
1033 | case MEP_OPERAND_IVC2_ACC0_3 : | |
1034 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1035 | break; | |
1036 | case MEP_OPERAND_IVC2_ACC0_4 : | |
1037 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1038 | break; | |
1039 | case MEP_OPERAND_IVC2_ACC0_5 : | |
1040 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1041 | break; | |
1042 | case MEP_OPERAND_IVC2_ACC0_6 : | |
1043 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1044 | break; | |
1045 | case MEP_OPERAND_IVC2_ACC0_7 : | |
1046 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1047 | break; | |
1048 | case MEP_OPERAND_IVC2_ACC1_0 : | |
1049 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1050 | break; | |
1051 | case MEP_OPERAND_IVC2_ACC1_1 : | |
1052 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1053 | break; | |
1054 | case MEP_OPERAND_IVC2_ACC1_2 : | |
1055 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1056 | break; | |
1057 | case MEP_OPERAND_IVC2_ACC1_3 : | |
1058 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1059 | break; | |
1060 | case MEP_OPERAND_IVC2_ACC1_4 : | |
1061 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1062 | break; | |
1063 | case MEP_OPERAND_IVC2_ACC1_5 : | |
1064 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1065 | break; | |
1066 | case MEP_OPERAND_IVC2_ACC1_6 : | |
1067 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1068 | break; | |
1069 | case MEP_OPERAND_IVC2_ACC1_7 : | |
1070 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1071 | break; | |
1072 | case MEP_OPERAND_IVC2_CC : | |
1073 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1074 | break; | |
1075 | case MEP_OPERAND_IVC2_COFA0 : | |
1076 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1077 | break; | |
1078 | case MEP_OPERAND_IVC2_COFA1 : | |
1079 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1080 | break; | |
1081 | case MEP_OPERAND_IVC2_COFR0 : | |
1082 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1083 | break; | |
1084 | case MEP_OPERAND_IVC2_COFR1 : | |
1085 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1086 | break; | |
1087 | case MEP_OPERAND_IVC2_CSAR0 : | |
1088 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1089 | break; | |
1090 | case MEP_OPERAND_IVC2_CSAR1 : | |
1091 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk); | |
1092 | break; | |
1d74713b | 1093 | case MEP_OPERAND_IVC2C3CCRN : |
2f3565a3 | 1094 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & fields->f_ivc2_ccrn_c3); |
1d74713b | 1095 | break; |
3526b680 | 1096 | case MEP_OPERAND_IVC2CCRN : |
1d74713b | 1097 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & fields->f_ivc2_ccrn); |
3526b680 DD |
1098 | break; |
1099 | case MEP_OPERAND_IVC2CRN : | |
1100 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_crnx); | |
1101 | break; | |
1102 | case MEP_OPERAND_IVC2RM : | |
1103 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_ivc2_crm); | |
1104 | break; | |
bd2f2e55 DB |
1105 | case MEP_OPERAND_LO : |
1106 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1107 | break; | |
1108 | case MEP_OPERAND_LP : | |
1109 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1110 | break; | |
1111 | case MEP_OPERAND_MB0 : | |
1112 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1113 | break; | |
1114 | case MEP_OPERAND_MB1 : | |
1115 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1116 | break; | |
1117 | case MEP_OPERAND_ME0 : | |
1118 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1119 | break; | |
1120 | case MEP_OPERAND_ME1 : | |
1121 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1122 | break; | |
1123 | case MEP_OPERAND_NPC : | |
1124 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1125 | break; | |
1126 | case MEP_OPERAND_OPT : | |
1127 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1128 | break; | |
1129 | case MEP_OPERAND_PCABS24A2 : | |
1130 | errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_PCABS24A2, (unsigned long *) (& fields->f_24u5a2n)); | |
1131 | break; | |
1132 | case MEP_OPERAND_PCREL12A2 : | |
1133 | errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL12A2, (long *) (& fields->f_12s4a2)); | |
1134 | break; | |
1135 | case MEP_OPERAND_PCREL17A2 : | |
1136 | errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL17A2, (long *) (& fields->f_17s16a2)); | |
1137 | break; | |
1138 | case MEP_OPERAND_PCREL24A2 : | |
1139 | errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL24A2, (long *) (& fields->f_24s5a2n)); | |
1140 | break; | |
1141 | case MEP_OPERAND_PCREL8A2 : | |
1142 | errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL8A2, (long *) (& fields->f_8s8a2)); | |
1143 | break; | |
1144 | case MEP_OPERAND_PSW : | |
1145 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1146 | break; | |
1147 | case MEP_OPERAND_R0 : | |
1148 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); | |
1149 | break; | |
1150 | case MEP_OPERAND_R1 : | |
1151 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); | |
1152 | break; | |
1153 | case MEP_OPERAND_RL : | |
1154 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rl); | |
1155 | break; | |
40493983 DD |
1156 | case MEP_OPERAND_RL5 : |
1157 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rl5); | |
1158 | break; | |
bd2f2e55 DB |
1159 | case MEP_OPERAND_RM : |
1160 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rm); | |
1161 | break; | |
1162 | case MEP_OPERAND_RMA : | |
1163 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rm); | |
1164 | break; | |
1165 | case MEP_OPERAND_RN : | |
1166 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); | |
1167 | break; | |
1168 | case MEP_OPERAND_RN3 : | |
1169 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); | |
1170 | break; | |
1171 | case MEP_OPERAND_RN3C : | |
1172 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); | |
1173 | break; | |
1174 | case MEP_OPERAND_RN3L : | |
1175 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); | |
1176 | break; | |
1177 | case MEP_OPERAND_RN3S : | |
1178 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); | |
1179 | break; | |
1180 | case MEP_OPERAND_RN3UC : | |
1181 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); | |
1182 | break; | |
1183 | case MEP_OPERAND_RN3UL : | |
1184 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); | |
1185 | break; | |
1186 | case MEP_OPERAND_RN3US : | |
1187 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3); | |
1188 | break; | |
1189 | case MEP_OPERAND_RNC : | |
1190 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); | |
1191 | break; | |
1192 | case MEP_OPERAND_RNL : | |
1193 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); | |
1194 | break; | |
1195 | case MEP_OPERAND_RNS : | |
1196 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); | |
1197 | break; | |
1198 | case MEP_OPERAND_RNUC : | |
1199 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); | |
1200 | break; | |
1201 | case MEP_OPERAND_RNUL : | |
1202 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); | |
1203 | break; | |
1204 | case MEP_OPERAND_RNUS : | |
1205 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn); | |
1206 | break; | |
1207 | case MEP_OPERAND_SAR : | |
1208 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk); | |
1209 | break; | |
1210 | case MEP_OPERAND_SDISP16 : | |
1211 | errmsg = parse_signed16 (cd, strp, MEP_OPERAND_SDISP16, (long *) (& fields->f_16s16)); | |
1212 | break; | |
1213 | case MEP_OPERAND_SIMM16 : | |
1214 | errmsg = parse_signed16 (cd, strp, MEP_OPERAND_SIMM16, (long *) (& fields->f_16s16)); | |
1215 | break; | |
3526b680 | 1216 | case MEP_OPERAND_SIMM16P0 : |
d285268e | 1217 | errmsg = parse_signed16_range (cd, strp, MEP_OPERAND_SIMM16P0, (long *) (& fields->f_ivc2_simm16p0)); |
3526b680 | 1218 | break; |
bd2f2e55 DB |
1219 | case MEP_OPERAND_SIMM6 : |
1220 | errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM6, (long *) (& fields->f_6s8)); | |
1221 | break; | |
1222 | case MEP_OPERAND_SIMM8 : | |
1223 | errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8, (long *) (& fields->f_8s8)); | |
1224 | break; | |
3526b680 DD |
1225 | case MEP_OPERAND_SIMM8P0 : |
1226 | errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P0, (long *) (& fields->f_ivc2_8s0)); | |
1227 | break; | |
1d74713b DD |
1228 | case MEP_OPERAND_SIMM8P20 : |
1229 | errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P20, (long *) (& fields->f_ivc2_8s20)); | |
1230 | break; | |
3526b680 DD |
1231 | case MEP_OPERAND_SIMM8P4 : |
1232 | errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P4, (long *) (& fields->f_ivc2_8s4)); | |
1233 | break; | |
bd2f2e55 DB |
1234 | case MEP_OPERAND_SP : |
1235 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); | |
1236 | break; | |
1237 | case MEP_OPERAND_SPR : | |
1238 | errmsg = parse_spreg (cd, strp, & mep_cgen_opval_h_gpr, & junk); | |
1239 | break; | |
1240 | case MEP_OPERAND_TP : | |
1241 | errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk); | |
1242 | break; | |
1243 | case MEP_OPERAND_TPR : | |
1244 | errmsg = parse_tpreg (cd, strp, & mep_cgen_opval_h_gpr, & junk); | |
1245 | break; | |
1246 | case MEP_OPERAND_UDISP2 : | |
1247 | errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_UDISP2, (long *) (& fields->f_2u6)); | |
1248 | break; | |
1249 | case MEP_OPERAND_UDISP7 : | |
1250 | errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7, (unsigned long *) (& fields->f_7u9)); | |
1251 | break; | |
1252 | case MEP_OPERAND_UDISP7A2 : | |
1253 | errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7A2, (unsigned long *) (& fields->f_7u9a2)); | |
1254 | break; | |
1255 | case MEP_OPERAND_UDISP7A4 : | |
1256 | errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7A4, (unsigned long *) (& fields->f_7u9a4)); | |
1257 | break; | |
1258 | case MEP_OPERAND_UIMM16 : | |
1259 | errmsg = parse_unsigned16 (cd, strp, MEP_OPERAND_UIMM16, (unsigned long *) (& fields->f_16u16)); | |
1260 | break; | |
1261 | case MEP_OPERAND_UIMM2 : | |
1262 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM2, (unsigned long *) (& fields->f_2u10)); | |
1263 | break; | |
1264 | case MEP_OPERAND_UIMM24 : | |
1265 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM24, (unsigned long *) (& fields->f_24u8n)); | |
1266 | break; | |
1267 | case MEP_OPERAND_UIMM3 : | |
1268 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM3, (unsigned long *) (& fields->f_3u5)); | |
1269 | break; | |
1270 | case MEP_OPERAND_UIMM4 : | |
1271 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM4, (unsigned long *) (& fields->f_4u8)); | |
1272 | break; | |
1273 | case MEP_OPERAND_UIMM5 : | |
1274 | errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM5, (unsigned long *) (& fields->f_5u8)); | |
1275 | break; | |
1276 | case MEP_OPERAND_UIMM7A4 : | |
1277 | errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_UIMM7A4, (unsigned long *) (& fields->f_7u9a4)); | |
1278 | break; | |
1279 | case MEP_OPERAND_ZERO : | |
1280 | errmsg = parse_zero (cd, strp, MEP_OPERAND_ZERO, (long *) (& junk)); | |
1281 | break; | |
1282 | ||
1283 | default : | |
1284 | /* xgettext:c-format */ | |
1285 | fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex); | |
1286 | abort (); | |
1287 | } | |
1288 | ||
1289 | return errmsg; | |
1290 | } | |
1291 | ||
1292 | cgen_parse_fn * const mep_cgen_parse_handlers[] = | |
1293 | { | |
1294 | parse_insn_normal, | |
1295 | }; | |
1296 | ||
1297 | void | |
1298 | mep_cgen_init_asm (CGEN_CPU_DESC cd) | |
1299 | { | |
1300 | mep_cgen_init_opcode_table (cd); | |
1301 | mep_cgen_init_ibld_table (cd); | |
1302 | cd->parse_handlers = & mep_cgen_parse_handlers[0]; | |
1303 | cd->parse_operand = mep_cgen_parse_operand; | |
1304 | #ifdef CGEN_ASM_INIT_HOOK | |
1305 | CGEN_ASM_INIT_HOOK | |
1306 | #endif | |
1307 | } | |
1308 | ||
1309 | \f | |
1310 | ||
1311 | /* Regex construction routine. | |
1312 | ||
1313 | This translates an opcode syntax string into a regex string, | |
1314 | by replacing any non-character syntax element (such as an | |
1315 | opcode) with the pattern '.*' | |
1316 | ||
1317 | It then compiles the regex and stores it in the opcode, for | |
1318 | later use by mep_cgen_assemble_insn | |
1319 | ||
1320 | Returns NULL for success, an error message for failure. */ | |
1321 | ||
1322 | char * | |
1323 | mep_cgen_build_insn_regex (CGEN_INSN *insn) | |
1324 | { | |
1325 | CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); | |
1326 | const char *mnem = CGEN_INSN_MNEMONIC (insn); | |
1327 | char rxbuf[CGEN_MAX_RX_ELEMENTS]; | |
1328 | char *rx = rxbuf; | |
1329 | const CGEN_SYNTAX_CHAR_TYPE *syn; | |
1330 | int reg_err; | |
1331 | ||
1332 | syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); | |
1333 | ||
1334 | /* Mnemonics come first in the syntax string. */ | |
1335 | if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) | |
1336 | return _("missing mnemonic in syntax string"); | |
1337 | ++syn; | |
1338 | ||
1339 | /* Generate a case sensitive regular expression that emulates case | |
1340 | insensitive matching in the "C" locale. We cannot generate a case | |
1341 | insensitive regular expression because in Turkish locales, 'i' and 'I' | |
1342 | are not equal modulo case conversion. */ | |
1343 | ||
1344 | /* Copy the literal mnemonic out of the insn. */ | |
1345 | for (; *mnem; mnem++) | |
1346 | { | |
1347 | char c = *mnem; | |
1348 | ||
1349 | if (ISALPHA (c)) | |
1350 | { | |
1351 | *rx++ = '['; | |
1352 | *rx++ = TOLOWER (c); | |
1353 | *rx++ = TOUPPER (c); | |
1354 | *rx++ = ']'; | |
1355 | } | |
1356 | else | |
1357 | *rx++ = c; | |
1358 | } | |
1359 | ||
1360 | /* Copy any remaining literals from the syntax string into the rx. */ | |
1361 | for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) | |
1362 | { | |
1363 | if (CGEN_SYNTAX_CHAR_P (* syn)) | |
1364 | { | |
1365 | char c = CGEN_SYNTAX_CHAR (* syn); | |
1366 | ||
1367 | switch (c) | |
1368 | { | |
1369 | /* Escape any regex metacharacters in the syntax. */ | |
1370 | case '.': case '[': case '\\': | |
1371 | case '*': case '^': case '$': | |
1372 | ||
1373 | #ifdef CGEN_ESCAPE_EXTENDED_REGEX | |
1374 | case '?': case '{': case '}': | |
1375 | case '(': case ')': case '*': | |
1376 | case '|': case '+': case ']': | |
1377 | #endif | |
1378 | *rx++ = '\\'; | |
1379 | *rx++ = c; | |
1380 | break; | |
1381 | ||
1382 | default: | |
1383 | if (ISALPHA (c)) | |
1384 | { | |
1385 | *rx++ = '['; | |
1386 | *rx++ = TOLOWER (c); | |
1387 | *rx++ = TOUPPER (c); | |
1388 | *rx++ = ']'; | |
1389 | } | |
1390 | else | |
1391 | *rx++ = c; | |
1392 | break; | |
1393 | } | |
1394 | } | |
1395 | else | |
1396 | { | |
1397 | /* Replace non-syntax fields with globs. */ | |
1398 | *rx++ = '.'; | |
1399 | *rx++ = '*'; | |
1400 | } | |
1401 | } | |
1402 | ||
1403 | /* Trailing whitespace ok. */ | |
1404 | * rx++ = '['; | |
1405 | * rx++ = ' '; | |
1406 | * rx++ = '\t'; | |
1407 | * rx++ = ']'; | |
1408 | * rx++ = '*'; | |
1409 | ||
1410 | /* But anchor it after that. */ | |
1411 | * rx++ = '$'; | |
1412 | * rx = '\0'; | |
1413 | ||
1414 | CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); | |
1415 | reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); | |
1416 | ||
1417 | if (reg_err == 0) | |
1418 | return NULL; | |
1419 | else | |
1420 | { | |
1421 | static char msg[80]; | |
1422 | ||
1423 | regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); | |
1424 | regfree ((regex_t *) CGEN_INSN_RX (insn)); | |
1425 | free (CGEN_INSN_RX (insn)); | |
1426 | (CGEN_INSN_RX (insn)) = NULL; | |
1427 | return msg; | |
1428 | } | |
1429 | } | |
1430 | ||
1431 | \f | |
1432 | /* Default insn parser. | |
1433 | ||
1434 | The syntax string is scanned and operands are parsed and stored in FIELDS. | |
1435 | Relocs are queued as we go via other callbacks. | |
1436 | ||
1437 | ??? Note that this is currently an all-or-nothing parser. If we fail to | |
1438 | parse the instruction, we return 0 and the caller will start over from | |
1439 | the beginning. Backtracking will be necessary in parsing subexpressions, | |
1440 | but that can be handled there. Not handling backtracking here may get | |
1441 | expensive in the case of the m68k. Deal with later. | |
1442 | ||
1443 | Returns NULL for success, an error message for failure. */ | |
1444 | ||
1445 | static const char * | |
1446 | parse_insn_normal (CGEN_CPU_DESC cd, | |
1447 | const CGEN_INSN *insn, | |
1448 | const char **strp, | |
1449 | CGEN_FIELDS *fields) | |
1450 | { | |
1451 | /* ??? Runtime added insns not handled yet. */ | |
1452 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
1453 | const char *str = *strp; | |
1454 | const char *errmsg; | |
1455 | const char *p; | |
1456 | const CGEN_SYNTAX_CHAR_TYPE * syn; | |
1457 | #ifdef CGEN_MNEMONIC_OPERANDS | |
1458 | /* FIXME: wip */ | |
1459 | int past_opcode_p; | |
1460 | #endif | |
1461 | ||
1462 | /* For now we assume the mnemonic is first (there are no leading operands). | |
1463 | We can parse it without needing to set up operand parsing. | |
1464 | GAS's input scrubber will ensure mnemonics are lowercase, but we may | |
1465 | not be called from GAS. */ | |
1466 | p = CGEN_INSN_MNEMONIC (insn); | |
1467 | while (*p && TOLOWER (*p) == TOLOWER (*str)) | |
1468 | ++p, ++str; | |
1469 | ||
1470 | if (* p) | |
1471 | return _("unrecognized instruction"); | |
1472 | ||
1473 | #ifndef CGEN_MNEMONIC_OPERANDS | |
1474 | if (* str && ! ISSPACE (* str)) | |
1475 | return _("unrecognized instruction"); | |
1476 | #endif | |
1477 | ||
1478 | CGEN_INIT_PARSE (cd); | |
1479 | cgen_init_parse_operand (cd); | |
1480 | #ifdef CGEN_MNEMONIC_OPERANDS | |
1481 | past_opcode_p = 0; | |
1482 | #endif | |
1483 | ||
1484 | /* We don't check for (*str != '\0') here because we want to parse | |
1485 | any trailing fake arguments in the syntax string. */ | |
1486 | syn = CGEN_SYNTAX_STRING (syntax); | |
1487 | ||
1488 | /* Mnemonics come first for now, ensure valid string. */ | |
1489 | if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) | |
1490 | abort (); | |
1491 | ||
1492 | ++syn; | |
1493 | ||
1494 | while (* syn != 0) | |
1495 | { | |
1496 | /* Non operand chars must match exactly. */ | |
1497 | if (CGEN_SYNTAX_CHAR_P (* syn)) | |
1498 | { | |
1499 | /* FIXME: While we allow for non-GAS callers above, we assume the | |
1500 | first char after the mnemonic part is a space. */ | |
1501 | /* FIXME: We also take inappropriate advantage of the fact that | |
1502 | GAS's input scrubber will remove extraneous blanks. */ | |
1503 | if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn))) | |
1504 | { | |
1505 | #ifdef CGEN_MNEMONIC_OPERANDS | |
1506 | if (CGEN_SYNTAX_CHAR(* syn) == ' ') | |
1507 | past_opcode_p = 1; | |
1508 | #endif | |
1509 | ++ syn; | |
1510 | ++ str; | |
1511 | } | |
1512 | else if (*str) | |
1513 | { | |
1514 | /* Syntax char didn't match. Can't be this insn. */ | |
1515 | static char msg [80]; | |
1516 | ||
1517 | /* xgettext:c-format */ | |
1518 | sprintf (msg, _("syntax error (expected char `%c', found `%c')"), | |
1519 | CGEN_SYNTAX_CHAR(*syn), *str); | |
1520 | return msg; | |
1521 | } | |
1522 | else | |
1523 | { | |
1524 | /* Ran out of input. */ | |
1525 | static char msg [80]; | |
1526 | ||
1527 | /* xgettext:c-format */ | |
1528 | sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), | |
1529 | CGEN_SYNTAX_CHAR(*syn)); | |
1530 | return msg; | |
1531 | } | |
1532 | continue; | |
1533 | } | |
1534 | ||
c7e2358a AM |
1535 | #ifdef CGEN_MNEMONIC_OPERANDS |
1536 | (void) past_opcode_p; | |
1537 | #endif | |
bd2f2e55 | 1538 | /* We have an operand of some sort. */ |
c7e2358a | 1539 | errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields); |
bd2f2e55 DB |
1540 | if (errmsg) |
1541 | return errmsg; | |
1542 | ||
1543 | /* Done with this operand, continue with next one. */ | |
1544 | ++ syn; | |
1545 | } | |
1546 | ||
1547 | /* If we're at the end of the syntax string, we're done. */ | |
1548 | if (* syn == 0) | |
1549 | { | |
1550 | /* FIXME: For the moment we assume a valid `str' can only contain | |
1551 | blanks now. IE: We needn't try again with a longer version of | |
1552 | the insn and it is assumed that longer versions of insns appear | |
1553 | before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ | |
1554 | while (ISSPACE (* str)) | |
1555 | ++ str; | |
1556 | ||
1557 | if (* str != '\0') | |
1558 | return _("junk at end of line"); /* FIXME: would like to include `str' */ | |
1559 | ||
1560 | return NULL; | |
1561 | } | |
1562 | ||
1563 | /* We couldn't parse it. */ | |
1564 | return _("unrecognized instruction"); | |
1565 | } | |
1566 | \f | |
1567 | /* Main entry point. | |
1568 | This routine is called for each instruction to be assembled. | |
1569 | STR points to the insn to be assembled. | |
1570 | We assume all necessary tables have been initialized. | |
1571 | The assembled instruction, less any fixups, is stored in BUF. | |
1572 | Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value | |
1573 | still needs to be converted to target byte order, otherwise BUF is an array | |
1574 | of bytes in target byte order. | |
1575 | The result is a pointer to the insn's entry in the opcode table, | |
1576 | or NULL if an error occured (an error message will have already been | |
1577 | printed). | |
1578 | ||
1579 | Note that when processing (non-alias) macro-insns, | |
1580 | this function recurses. | |
1581 | ||
1582 | ??? It's possible to make this cpu-independent. | |
1583 | One would have to deal with a few minor things. | |
1584 | At this point in time doing so would be more of a curiosity than useful | |
1585 | [for example this file isn't _that_ big], but keeping the possibility in | |
1586 | mind helps keep the design clean. */ | |
1587 | ||
1588 | const CGEN_INSN * | |
1589 | mep_cgen_assemble_insn (CGEN_CPU_DESC cd, | |
1590 | const char *str, | |
1591 | CGEN_FIELDS *fields, | |
1592 | CGEN_INSN_BYTES_PTR buf, | |
1593 | char **errmsg) | |
1594 | { | |
1595 | const char *start; | |
1596 | CGEN_INSN_LIST *ilist; | |
1597 | const char *parse_errmsg = NULL; | |
1598 | const char *insert_errmsg = NULL; | |
1599 | int recognized_mnemonic = 0; | |
1600 | ||
1601 | /* Skip leading white space. */ | |
1602 | while (ISSPACE (* str)) | |
1603 | ++ str; | |
1604 | ||
1605 | /* The instructions are stored in hashed lists. | |
1606 | Get the first in the list. */ | |
1607 | ilist = CGEN_ASM_LOOKUP_INSN (cd, str); | |
1608 | ||
1609 | /* Keep looking until we find a match. */ | |
1610 | start = str; | |
1611 | for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) | |
1612 | { | |
1613 | const CGEN_INSN *insn = ilist->insn; | |
1614 | recognized_mnemonic = 1; | |
1615 | ||
1616 | #ifdef CGEN_VALIDATE_INSN_SUPPORTED | |
1617 | /* Not usually needed as unsupported opcodes | |
1618 | shouldn't be in the hash lists. */ | |
1619 | /* Is this insn supported by the selected cpu? */ | |
1620 | if (! mep_cgen_insn_supported (cd, insn)) | |
1621 | continue; | |
1622 | #endif | |
1623 | /* If the RELAXED attribute is set, this is an insn that shouldn't be | |
1624 | chosen immediately. Instead, it is used during assembler/linker | |
1625 | relaxation if possible. */ | |
1626 | if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) | |
1627 | continue; | |
1628 | ||
1629 | str = start; | |
1630 | ||
1631 | /* Skip this insn if str doesn't look right lexically. */ | |
1632 | if (CGEN_INSN_RX (insn) != NULL && | |
1633 | regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) | |
1634 | continue; | |
1635 | ||
1636 | /* Allow parse/insert handlers to obtain length of insn. */ | |
1637 | CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); | |
1638 | ||
1639 | parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); | |
1640 | if (parse_errmsg != NULL) | |
1641 | continue; | |
1642 | ||
1643 | /* ??? 0 is passed for `pc'. */ | |
1644 | insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, | |
1645 | (bfd_vma) 0); | |
1646 | if (insert_errmsg != NULL) | |
1647 | continue; | |
1648 | ||
1649 | /* It is up to the caller to actually output the insn and any | |
1650 | queued relocs. */ | |
1651 | return insn; | |
1652 | } | |
1653 | ||
1654 | { | |
1655 | static char errbuf[150]; | |
bd2f2e55 | 1656 | const char *tmp_errmsg; |
c7e2358a AM |
1657 | #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS |
1658 | #define be_verbose 1 | |
bd2f2e55 | 1659 | #else |
c7e2358a | 1660 | #define be_verbose 0 |
bd2f2e55 | 1661 | #endif |
c7e2358a AM |
1662 | |
1663 | if (be_verbose) | |
1664 | { | |
1665 | /* If requesting verbose error messages, use insert_errmsg. | |
1666 | Failing that, use parse_errmsg. */ | |
1667 | tmp_errmsg = (insert_errmsg ? insert_errmsg : | |
1668 | parse_errmsg ? parse_errmsg : | |
1669 | recognized_mnemonic ? | |
1670 | _("unrecognized form of instruction") : | |
1671 | _("unrecognized instruction")); | |
1672 | ||
1673 | if (strlen (start) > 50) | |
1674 | /* xgettext:c-format */ | |
1675 | sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); | |
1676 | else | |
1677 | /* xgettext:c-format */ | |
1678 | sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); | |
1679 | } | |
1680 | else | |
1681 | { | |
1682 | if (strlen (start) > 50) | |
1683 | /* xgettext:c-format */ | |
1684 | sprintf (errbuf, _("bad instruction `%.50s...'"), start); | |
1685 | else | |
1686 | /* xgettext:c-format */ | |
1687 | sprintf (errbuf, _("bad instruction `%.50s'"), start); | |
1688 | } | |
bd2f2e55 DB |
1689 | |
1690 | *errmsg = errbuf; | |
1691 | return NULL; | |
1692 | } | |
1693 | } |