Commit | Line | Data |
---|---|---|
a40cbfa3 NC |
1 | /* Instruction building/extraction support for ip2k. -*- C -*- |
2 | ||
47b0e7ad NC |
3 | THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator. |
4 | - the resultant file is machine generated, cgen-ibld.in isn't | |
a40cbfa3 | 5 | |
9b201bb5 | 6 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2006, 2007 |
47b0e7ad | 7 | Free Software Foundation, Inc. |
a40cbfa3 | 8 | |
9b201bb5 | 9 | This file is part of libopcodes. |
a40cbfa3 | 10 | |
9b201bb5 | 11 | This library is free software; you can redistribute it and/or modify |
47b0e7ad | 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) |
47b0e7ad | 14 | any later version. |
a40cbfa3 | 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. | |
a40cbfa3 | 20 | |
47b0e7ad NC |
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. */ | |
a40cbfa3 NC |
24 | |
25 | /* ??? Eventually more and more of this stuff can go to cpu-independent files. | |
26 | Keep that in mind. */ | |
27 | ||
28 | #include "sysdep.h" | |
29 | #include <stdio.h> | |
30 | #include "ansidecl.h" | |
31 | #include "dis-asm.h" | |
32 | #include "bfd.h" | |
33 | #include "symcat.h" | |
34 | #include "ip2k-desc.h" | |
35 | #include "ip2k-opc.h" | |
36 | #include "opintl.h" | |
37 | #include "safe-ctype.h" | |
38 | ||
47b0e7ad | 39 | #undef min |
a40cbfa3 | 40 | #define min(a,b) ((a) < (b) ? (a) : (b)) |
47b0e7ad | 41 | #undef max |
a40cbfa3 NC |
42 | #define max(a,b) ((a) > (b) ? (a) : (b)) |
43 | ||
44 | /* Used by the ifield rtx function. */ | |
45 | #define FLD(f) (fields->f) | |
46 | ||
47 | static const char * insert_normal | |
ffead7ae MM |
48 | (CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int, |
49 | unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR); | |
a40cbfa3 | 50 | static const char * insert_insn_normal |
ffead7ae MM |
51 | (CGEN_CPU_DESC, const CGEN_INSN *, |
52 | CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma); | |
a40cbfa3 | 53 | static int extract_normal |
ffead7ae MM |
54 | (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, |
55 | unsigned int, unsigned int, unsigned int, unsigned int, | |
56 | unsigned int, unsigned int, bfd_vma, long *); | |
a40cbfa3 | 57 | static int extract_insn_normal |
ffead7ae MM |
58 | (CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *, |
59 | CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma); | |
a40cbfa3 NC |
60 | #if CGEN_INT_INSN_P |
61 | static void put_insn_int_value | |
ffead7ae | 62 | (CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT); |
a40cbfa3 NC |
63 | #endif |
64 | #if ! CGEN_INT_INSN_P | |
65 | static CGEN_INLINE void insert_1 | |
ffead7ae | 66 | (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *); |
a40cbfa3 | 67 | static CGEN_INLINE int fill_cache |
ffead7ae | 68 | (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, bfd_vma); |
a40cbfa3 | 69 | static CGEN_INLINE long extract_1 |
ffead7ae | 70 | (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma); |
a40cbfa3 NC |
71 | #endif |
72 | \f | |
73 | /* Operand insertion. */ | |
74 | ||
75 | #if ! CGEN_INT_INSN_P | |
76 | ||
77 | /* Subroutine of insert_normal. */ | |
78 | ||
79 | static CGEN_INLINE void | |
ffead7ae MM |
80 | insert_1 (CGEN_CPU_DESC cd, |
81 | unsigned long value, | |
82 | int start, | |
83 | int length, | |
84 | int word_length, | |
85 | unsigned char *bufp) | |
a40cbfa3 NC |
86 | { |
87 | unsigned long x,mask; | |
88 | int shift; | |
89 | ||
90 | x = cgen_get_insn_value (cd, bufp, word_length); | |
91 | ||
92 | /* Written this way to avoid undefined behaviour. */ | |
93 | mask = (((1L << (length - 1)) - 1) << 1) | 1; | |
94 | if (CGEN_INSN_LSB0_P) | |
95 | shift = (start + 1) - length; | |
96 | else | |
97 | shift = (word_length - (start + length)); | |
98 | x = (x & ~(mask << shift)) | ((value & mask) << shift); | |
99 | ||
100 | cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x); | |
101 | } | |
102 | ||
103 | #endif /* ! CGEN_INT_INSN_P */ | |
104 | ||
105 | /* Default insertion routine. | |
106 | ||
107 | ATTRS is a mask of the boolean attributes. | |
108 | WORD_OFFSET is the offset in bits from the start of the insn of the value. | |
109 | WORD_LENGTH is the length of the word in bits in which the value resides. | |
110 | START is the starting bit number in the word, architecture origin. | |
111 | LENGTH is the length of VALUE in bits. | |
112 | TOTAL_LENGTH is the total length of the insn in bits. | |
113 | ||
114 | The result is an error message or NULL if success. */ | |
115 | ||
116 | /* ??? This duplicates functionality with bfd's howto table and | |
117 | bfd_install_relocation. */ | |
118 | /* ??? This doesn't handle bfd_vma's. Create another function when | |
119 | necessary. */ | |
120 | ||
121 | static const char * | |
ffead7ae MM |
122 | insert_normal (CGEN_CPU_DESC cd, |
123 | long value, | |
124 | unsigned int attrs, | |
125 | unsigned int word_offset, | |
126 | unsigned int start, | |
127 | unsigned int length, | |
128 | unsigned int word_length, | |
129 | unsigned int total_length, | |
130 | CGEN_INSN_BYTES_PTR buffer) | |
a40cbfa3 NC |
131 | { |
132 | static char errbuf[100]; | |
133 | /* Written this way to avoid undefined behaviour. */ | |
134 | unsigned long mask = (((1L << (length - 1)) - 1) << 1) | 1; | |
135 | ||
136 | /* If LENGTH is zero, this operand doesn't contribute to the value. */ | |
137 | if (length == 0) | |
138 | return NULL; | |
139 | ||
a40cbfa3 NC |
140 | if (word_length > 32) |
141 | abort (); | |
142 | ||
143 | /* For architectures with insns smaller than the base-insn-bitsize, | |
144 | word_length may be too big. */ | |
145 | if (cd->min_insn_bitsize < cd->base_insn_bitsize) | |
146 | { | |
147 | if (word_offset == 0 | |
148 | && word_length > total_length) | |
149 | word_length = total_length; | |
150 | } | |
151 | ||
152 | /* Ensure VALUE will fit. */ | |
153 | if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT)) | |
154 | { | |
155 | long minval = - (1L << (length - 1)); | |
156 | unsigned long maxval = mask; | |
157 | ||
158 | if ((value > 0 && (unsigned long) value > maxval) | |
159 | || value < minval) | |
160 | { | |
161 | /* xgettext:c-format */ | |
162 | sprintf (errbuf, | |
163 | _("operand out of range (%ld not between %ld and %lu)"), | |
164 | value, minval, maxval); | |
165 | return errbuf; | |
166 | } | |
167 | } | |
168 | else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)) | |
169 | { | |
170 | unsigned long maxval = mask; | |
ed963e2d NC |
171 | unsigned long val = (unsigned long) value; |
172 | ||
173 | /* For hosts with a word size > 32 check to see if value has been sign | |
174 | extended beyond 32 bits. If so then ignore these higher sign bits | |
175 | as the user is attempting to store a 32-bit signed value into an | |
176 | unsigned 32-bit field which is allowed. */ | |
177 | if (sizeof (unsigned long) > 4 && ((value >> 32) == -1)) | |
178 | val &= 0xFFFFFFFF; | |
179 | ||
180 | if (val > maxval) | |
a40cbfa3 NC |
181 | { |
182 | /* xgettext:c-format */ | |
183 | sprintf (errbuf, | |
ed963e2d NC |
184 | _("operand out of range (0x%lx not between 0 and 0x%lx)"), |
185 | val, maxval); | |
a40cbfa3 NC |
186 | return errbuf; |
187 | } | |
188 | } | |
189 | else | |
190 | { | |
191 | if (! cgen_signed_overflow_ok_p (cd)) | |
192 | { | |
193 | long minval = - (1L << (length - 1)); | |
194 | long maxval = (1L << (length - 1)) - 1; | |
195 | ||
196 | if (value < minval || value > maxval) | |
197 | { | |
198 | sprintf | |
199 | /* xgettext:c-format */ | |
200 | (errbuf, _("operand out of range (%ld not between %ld and %ld)"), | |
201 | value, minval, maxval); | |
202 | return errbuf; | |
203 | } | |
204 | } | |
205 | } | |
206 | ||
207 | #if CGEN_INT_INSN_P | |
208 | ||
209 | { | |
210 | int shift; | |
211 | ||
212 | if (CGEN_INSN_LSB0_P) | |
213 | shift = (word_offset + start + 1) - length; | |
214 | else | |
215 | shift = total_length - (word_offset + start + length); | |
216 | *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift); | |
217 | } | |
218 | ||
219 | #else /* ! CGEN_INT_INSN_P */ | |
220 | ||
221 | { | |
222 | unsigned char *bufp = (unsigned char *) buffer + word_offset / 8; | |
223 | ||
224 | insert_1 (cd, value, start, length, word_length, bufp); | |
225 | } | |
226 | ||
227 | #endif /* ! CGEN_INT_INSN_P */ | |
228 | ||
229 | return NULL; | |
230 | } | |
231 | ||
232 | /* Default insn builder (insert handler). | |
233 | The instruction is recorded in CGEN_INT_INSN_P byte order (meaning | |
234 | that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is | |
235 | recorded in host byte order, otherwise BUFFER is an array of bytes | |
236 | and the value is recorded in target byte order). | |
237 | The result is an error message or NULL if success. */ | |
238 | ||
239 | static const char * | |
ffead7ae MM |
240 | insert_insn_normal (CGEN_CPU_DESC cd, |
241 | const CGEN_INSN * insn, | |
242 | CGEN_FIELDS * fields, | |
243 | CGEN_INSN_BYTES_PTR buffer, | |
244 | bfd_vma pc) | |
a40cbfa3 NC |
245 | { |
246 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
247 | unsigned long value; | |
248 | const CGEN_SYNTAX_CHAR_TYPE * syn; | |
249 | ||
250 | CGEN_INIT_INSERT (cd); | |
251 | value = CGEN_INSN_BASE_VALUE (insn); | |
252 | ||
253 | /* If we're recording insns as numbers (rather than a string of bytes), | |
254 | target byte order handling is deferred until later. */ | |
255 | ||
256 | #if CGEN_INT_INSN_P | |
257 | ||
258 | put_insn_int_value (cd, buffer, cd->base_insn_bitsize, | |
259 | CGEN_FIELDS_BITSIZE (fields), value); | |
260 | ||
261 | #else | |
262 | ||
263 | cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize, | |
264 | (unsigned) CGEN_FIELDS_BITSIZE (fields)), | |
265 | value); | |
266 | ||
267 | #endif /* ! CGEN_INT_INSN_P */ | |
268 | ||
269 | /* ??? It would be better to scan the format's fields. | |
270 | Still need to be able to insert a value based on the operand though; | |
271 | e.g. storing a branch displacement that got resolved later. | |
272 | Needs more thought first. */ | |
273 | ||
274 | for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn) | |
275 | { | |
276 | const char *errmsg; | |
277 | ||
278 | if (CGEN_SYNTAX_CHAR_P (* syn)) | |
279 | continue; | |
280 | ||
281 | errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn), | |
282 | fields, buffer, pc); | |
283 | if (errmsg) | |
284 | return errmsg; | |
285 | } | |
286 | ||
287 | return NULL; | |
288 | } | |
289 | ||
290 | #if CGEN_INT_INSN_P | |
291 | /* Cover function to store an insn value into an integral insn. Must go here | |
47b0e7ad | 292 | because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */ |
a40cbfa3 NC |
293 | |
294 | static void | |
ffead7ae MM |
295 | put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
296 | CGEN_INSN_BYTES_PTR buf, | |
297 | int length, | |
298 | int insn_length, | |
299 | CGEN_INSN_INT value) | |
a40cbfa3 NC |
300 | { |
301 | /* For architectures with insns smaller than the base-insn-bitsize, | |
302 | length may be too big. */ | |
303 | if (length > insn_length) | |
304 | *buf = value; | |
305 | else | |
306 | { | |
307 | int shift = insn_length - length; | |
308 | /* Written this way to avoid undefined behaviour. */ | |
309 | CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1; | |
47b0e7ad | 310 | |
a40cbfa3 NC |
311 | *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift); |
312 | } | |
313 | } | |
314 | #endif | |
315 | \f | |
316 | /* Operand extraction. */ | |
317 | ||
318 | #if ! CGEN_INT_INSN_P | |
319 | ||
320 | /* Subroutine of extract_normal. | |
321 | Ensure sufficient bytes are cached in EX_INFO. | |
322 | OFFSET is the offset in bytes from the start of the insn of the value. | |
323 | BYTES is the length of the needed value. | |
324 | Returns 1 for success, 0 for failure. */ | |
325 | ||
326 | static CGEN_INLINE int | |
ffead7ae MM |
327 | fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
328 | CGEN_EXTRACT_INFO *ex_info, | |
329 | int offset, | |
330 | int bytes, | |
331 | bfd_vma pc) | |
a40cbfa3 NC |
332 | { |
333 | /* It's doubtful that the middle part has already been fetched so | |
334 | we don't optimize that case. kiss. */ | |
335 | unsigned int mask; | |
336 | disassemble_info *info = (disassemble_info *) ex_info->dis_info; | |
337 | ||
338 | /* First do a quick check. */ | |
339 | mask = (1 << bytes) - 1; | |
340 | if (((ex_info->valid >> offset) & mask) == mask) | |
341 | return 1; | |
342 | ||
343 | /* Search for the first byte we need to read. */ | |
344 | for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1) | |
345 | if (! (mask & ex_info->valid)) | |
346 | break; | |
347 | ||
348 | if (bytes) | |
349 | { | |
350 | int status; | |
351 | ||
352 | pc += offset; | |
353 | status = (*info->read_memory_func) | |
354 | (pc, ex_info->insn_bytes + offset, bytes, info); | |
355 | ||
356 | if (status != 0) | |
357 | { | |
358 | (*info->memory_error_func) (status, pc, info); | |
359 | return 0; | |
360 | } | |
361 | ||
362 | ex_info->valid |= ((1 << bytes) - 1) << offset; | |
363 | } | |
364 | ||
365 | return 1; | |
366 | } | |
367 | ||
368 | /* Subroutine of extract_normal. */ | |
369 | ||
370 | static CGEN_INLINE long | |
ffead7ae MM |
371 | extract_1 (CGEN_CPU_DESC cd, |
372 | CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED, | |
373 | int start, | |
374 | int length, | |
375 | int word_length, | |
376 | unsigned char *bufp, | |
377 | bfd_vma pc ATTRIBUTE_UNUSED) | |
a40cbfa3 NC |
378 | { |
379 | unsigned long x; | |
380 | int shift; | |
47b0e7ad | 381 | |
a40cbfa3 NC |
382 | x = cgen_get_insn_value (cd, bufp, word_length); |
383 | ||
384 | if (CGEN_INSN_LSB0_P) | |
385 | shift = (start + 1) - length; | |
386 | else | |
387 | shift = (word_length - (start + length)); | |
388 | return x >> shift; | |
389 | } | |
390 | ||
391 | #endif /* ! CGEN_INT_INSN_P */ | |
392 | ||
393 | /* Default extraction routine. | |
394 | ||
395 | INSN_VALUE is the first base_insn_bitsize bits of the insn in host order, | |
396 | or sometimes less for cases like the m32r where the base insn size is 32 | |
397 | but some insns are 16 bits. | |
398 | ATTRS is a mask of the boolean attributes. We only need `SIGNED', | |
399 | but for generality we take a bitmask of all of them. | |
400 | WORD_OFFSET is the offset in bits from the start of the insn of the value. | |
401 | WORD_LENGTH is the length of the word in bits in which the value resides. | |
402 | START is the starting bit number in the word, architecture origin. | |
403 | LENGTH is the length of VALUE in bits. | |
404 | TOTAL_LENGTH is the total length of the insn in bits. | |
405 | ||
406 | Returns 1 for success, 0 for failure. */ | |
407 | ||
408 | /* ??? The return code isn't properly used. wip. */ | |
409 | ||
410 | /* ??? This doesn't handle bfd_vma's. Create another function when | |
411 | necessary. */ | |
412 | ||
413 | static int | |
ffead7ae | 414 | extract_normal (CGEN_CPU_DESC cd, |
a40cbfa3 | 415 | #if ! CGEN_INT_INSN_P |
ffead7ae | 416 | CGEN_EXTRACT_INFO *ex_info, |
a40cbfa3 | 417 | #else |
ffead7ae | 418 | CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED, |
a40cbfa3 | 419 | #endif |
ffead7ae MM |
420 | CGEN_INSN_INT insn_value, |
421 | unsigned int attrs, | |
422 | unsigned int word_offset, | |
423 | unsigned int start, | |
424 | unsigned int length, | |
425 | unsigned int word_length, | |
426 | unsigned int total_length, | |
a40cbfa3 | 427 | #if ! CGEN_INT_INSN_P |
ffead7ae | 428 | bfd_vma pc, |
a40cbfa3 | 429 | #else |
ffead7ae | 430 | bfd_vma pc ATTRIBUTE_UNUSED, |
a40cbfa3 | 431 | #endif |
ffead7ae | 432 | long *valuep) |
a40cbfa3 NC |
433 | { |
434 | long value, mask; | |
435 | ||
436 | /* If LENGTH is zero, this operand doesn't contribute to the value | |
437 | so give it a standard value of zero. */ | |
438 | if (length == 0) | |
439 | { | |
440 | *valuep = 0; | |
441 | return 1; | |
442 | } | |
443 | ||
a40cbfa3 NC |
444 | if (word_length > 32) |
445 | abort (); | |
446 | ||
447 | /* For architectures with insns smaller than the insn-base-bitsize, | |
448 | word_length may be too big. */ | |
449 | if (cd->min_insn_bitsize < cd->base_insn_bitsize) | |
450 | { | |
ed963e2d NC |
451 | if (word_offset + word_length > total_length) |
452 | word_length = total_length - word_offset; | |
a40cbfa3 NC |
453 | } |
454 | ||
455 | /* Does the value reside in INSN_VALUE, and at the right alignment? */ | |
456 | ||
457 | if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length)) | |
458 | { | |
459 | if (CGEN_INSN_LSB0_P) | |
460 | value = insn_value >> ((word_offset + start + 1) - length); | |
461 | else | |
462 | value = insn_value >> (total_length - ( word_offset + start + length)); | |
463 | } | |
464 | ||
465 | #if ! CGEN_INT_INSN_P | |
466 | ||
467 | else | |
468 | { | |
469 | unsigned char *bufp = ex_info->insn_bytes + word_offset / 8; | |
470 | ||
471 | if (word_length > 32) | |
472 | abort (); | |
473 | ||
474 | if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0) | |
475 | return 0; | |
476 | ||
477 | value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc); | |
478 | } | |
479 | ||
480 | #endif /* ! CGEN_INT_INSN_P */ | |
481 | ||
482 | /* Written this way to avoid undefined behaviour. */ | |
483 | mask = (((1L << (length - 1)) - 1) << 1) | 1; | |
484 | ||
485 | value &= mask; | |
486 | /* sign extend? */ | |
487 | if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED) | |
488 | && (value & (1L << (length - 1)))) | |
489 | value |= ~mask; | |
490 | ||
491 | *valuep = value; | |
492 | ||
493 | return 1; | |
494 | } | |
495 | ||
496 | /* Default insn extractor. | |
497 | ||
498 | INSN_VALUE is the first base_insn_bitsize bits, translated to host order. | |
499 | The extracted fields are stored in FIELDS. | |
500 | EX_INFO is used to handle reading variable length insns. | |
501 | Return the length of the insn in bits, or 0 if no match, | |
502 | or -1 if an error occurs fetching data (memory_error_func will have | |
503 | been called). */ | |
504 | ||
505 | static int | |
ffead7ae MM |
506 | extract_insn_normal (CGEN_CPU_DESC cd, |
507 | const CGEN_INSN *insn, | |
508 | CGEN_EXTRACT_INFO *ex_info, | |
509 | CGEN_INSN_INT insn_value, | |
510 | CGEN_FIELDS *fields, | |
511 | bfd_vma pc) | |
a40cbfa3 NC |
512 | { |
513 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
514 | const CGEN_SYNTAX_CHAR_TYPE *syn; | |
515 | ||
516 | CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); | |
517 | ||
518 | CGEN_INIT_EXTRACT (cd); | |
519 | ||
520 | for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn) | |
521 | { | |
522 | int length; | |
523 | ||
524 | if (CGEN_SYNTAX_CHAR_P (*syn)) | |
525 | continue; | |
526 | ||
527 | length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn), | |
528 | ex_info, insn_value, fields, pc); | |
529 | if (length <= 0) | |
530 | return length; | |
531 | } | |
532 | ||
533 | /* We recognized and successfully extracted this insn. */ | |
534 | return CGEN_INSN_BITSIZE (insn); | |
535 | } | |
536 | \f | |
47b0e7ad | 537 | /* Machine generated code added here. */ |
a40cbfa3 NC |
538 | |
539 | const char * ip2k_cgen_insert_operand | |
47b0e7ad | 540 | (CGEN_CPU_DESC, int, CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma); |
a40cbfa3 NC |
541 | |
542 | /* Main entry point for operand insertion. | |
543 | ||
544 | This function is basically just a big switch statement. Earlier versions | |
545 | used tables to look up the function to use, but | |
546 | - if the table contains both assembler and disassembler functions then | |
547 | the disassembler contains much of the assembler and vice-versa, | |
548 | - there's a lot of inlining possibilities as things grow, | |
549 | - using a switch statement avoids the function call overhead. | |
550 | ||
551 | This function could be moved into `parse_insn_normal', but keeping it | |
552 | separate makes clear the interface between `parse_insn_normal' and each of | |
553 | the handlers. It's also needed by GAS to insert operands that couldn't be | |
554 | resolved during parsing. */ | |
555 | ||
556 | const char * | |
47b0e7ad NC |
557 | ip2k_cgen_insert_operand (CGEN_CPU_DESC cd, |
558 | int opindex, | |
559 | CGEN_FIELDS * fields, | |
560 | CGEN_INSN_BYTES_PTR buffer, | |
561 | bfd_vma pc ATTRIBUTE_UNUSED) | |
a40cbfa3 NC |
562 | { |
563 | const char * errmsg = NULL; | |
564 | unsigned int total_length = CGEN_FIELDS_BITSIZE (fields); | |
565 | ||
566 | switch (opindex) | |
567 | { | |
568 | case IP2K_OPERAND_ADDR16CJP : | |
569 | errmsg = insert_normal (cd, fields->f_addr16cjp, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 12, 13, 16, total_length, buffer); | |
570 | break; | |
571 | case IP2K_OPERAND_ADDR16H : | |
572 | errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer); | |
573 | break; | |
574 | case IP2K_OPERAND_ADDR16L : | |
575 | errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer); | |
576 | break; | |
577 | case IP2K_OPERAND_ADDR16P : | |
578 | errmsg = insert_normal (cd, fields->f_page3, 0, 0, 2, 3, 16, total_length, buffer); | |
579 | break; | |
580 | case IP2K_OPERAND_BITNO : | |
581 | errmsg = insert_normal (cd, fields->f_bitno, 0, 0, 11, 3, 16, total_length, buffer); | |
582 | break; | |
583 | case IP2K_OPERAND_CBIT : | |
584 | break; | |
585 | case IP2K_OPERAND_DCBIT : | |
586 | break; | |
587 | case IP2K_OPERAND_FR : | |
588 | errmsg = insert_normal (cd, fields->f_reg, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 9, 16, total_length, buffer); | |
589 | break; | |
590 | case IP2K_OPERAND_LIT8 : | |
591 | errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer); | |
592 | break; | |
593 | case IP2K_OPERAND_PABITS : | |
594 | break; | |
595 | case IP2K_OPERAND_RETI3 : | |
596 | errmsg = insert_normal (cd, fields->f_reti3, 0, 0, 2, 3, 16, total_length, buffer); | |
597 | break; | |
598 | case IP2K_OPERAND_ZBIT : | |
599 | break; | |
600 | ||
601 | default : | |
602 | /* xgettext:c-format */ | |
603 | fprintf (stderr, _("Unrecognized field %d while building insn.\n"), | |
604 | opindex); | |
605 | abort (); | |
606 | } | |
607 | ||
608 | return errmsg; | |
609 | } | |
610 | ||
611 | int ip2k_cgen_extract_operand | |
47b0e7ad | 612 | (CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma); |
a40cbfa3 NC |
613 | |
614 | /* Main entry point for operand extraction. | |
615 | The result is <= 0 for error, >0 for success. | |
616 | ??? Actual values aren't well defined right now. | |
617 | ||
618 | This function is basically just a big switch statement. Earlier versions | |
619 | used tables to look up the function to use, but | |
620 | - if the table contains both assembler and disassembler functions then | |
621 | the disassembler contains much of the assembler and vice-versa, | |
622 | - there's a lot of inlining possibilities as things grow, | |
623 | - using a switch statement avoids the function call overhead. | |
624 | ||
625 | This function could be moved into `print_insn_normal', but keeping it | |
626 | separate makes clear the interface between `print_insn_normal' and each of | |
627 | the handlers. */ | |
628 | ||
629 | int | |
47b0e7ad NC |
630 | ip2k_cgen_extract_operand (CGEN_CPU_DESC cd, |
631 | int opindex, | |
632 | CGEN_EXTRACT_INFO *ex_info, | |
633 | CGEN_INSN_INT insn_value, | |
634 | CGEN_FIELDS * fields, | |
635 | bfd_vma pc) | |
a40cbfa3 NC |
636 | { |
637 | /* Assume success (for those operands that are nops). */ | |
638 | int length = 1; | |
639 | unsigned int total_length = CGEN_FIELDS_BITSIZE (fields); | |
640 | ||
641 | switch (opindex) | |
642 | { | |
643 | case IP2K_OPERAND_ADDR16CJP : | |
644 | length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 12, 13, 16, total_length, pc, & fields->f_addr16cjp); | |
645 | break; | |
646 | case IP2K_OPERAND_ADDR16H : | |
647 | length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8); | |
648 | break; | |
649 | case IP2K_OPERAND_ADDR16L : | |
650 | length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8); | |
651 | break; | |
652 | case IP2K_OPERAND_ADDR16P : | |
653 | length = extract_normal (cd, ex_info, insn_value, 0, 0, 2, 3, 16, total_length, pc, & fields->f_page3); | |
654 | break; | |
655 | case IP2K_OPERAND_BITNO : | |
656 | length = extract_normal (cd, ex_info, insn_value, 0, 0, 11, 3, 16, total_length, pc, & fields->f_bitno); | |
657 | break; | |
658 | case IP2K_OPERAND_CBIT : | |
659 | break; | |
660 | case IP2K_OPERAND_DCBIT : | |
661 | break; | |
662 | case IP2K_OPERAND_FR : | |
663 | length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 9, 16, total_length, pc, & fields->f_reg); | |
664 | break; | |
665 | case IP2K_OPERAND_LIT8 : | |
666 | length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8); | |
667 | break; | |
668 | case IP2K_OPERAND_PABITS : | |
669 | break; | |
670 | case IP2K_OPERAND_RETI3 : | |
671 | length = extract_normal (cd, ex_info, insn_value, 0, 0, 2, 3, 16, total_length, pc, & fields->f_reti3); | |
672 | break; | |
673 | case IP2K_OPERAND_ZBIT : | |
674 | break; | |
675 | ||
676 | default : | |
677 | /* xgettext:c-format */ | |
678 | fprintf (stderr, _("Unrecognized field %d while decoding insn.\n"), | |
679 | opindex); | |
680 | abort (); | |
681 | } | |
682 | ||
683 | return length; | |
684 | } | |
685 | ||
686 | cgen_insert_fn * const ip2k_cgen_insert_handlers[] = | |
687 | { | |
688 | insert_insn_normal, | |
689 | }; | |
690 | ||
691 | cgen_extract_fn * const ip2k_cgen_extract_handlers[] = | |
692 | { | |
693 | extract_insn_normal, | |
694 | }; | |
695 | ||
47b0e7ad NC |
696 | int ip2k_cgen_get_int_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *); |
697 | bfd_vma ip2k_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *); | |
a40cbfa3 NC |
698 | |
699 | /* Getting values from cgen_fields is handled by a collection of functions. | |
700 | They are distinguished by the type of the VALUE argument they return. | |
701 | TODO: floating point, inlining support, remove cases where result type | |
702 | not appropriate. */ | |
703 | ||
704 | int | |
47b0e7ad NC |
705 | ip2k_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
706 | int opindex, | |
707 | const CGEN_FIELDS * fields) | |
a40cbfa3 NC |
708 | { |
709 | int value; | |
710 | ||
711 | switch (opindex) | |
712 | { | |
713 | case IP2K_OPERAND_ADDR16CJP : | |
714 | value = fields->f_addr16cjp; | |
715 | break; | |
716 | case IP2K_OPERAND_ADDR16H : | |
717 | value = fields->f_imm8; | |
718 | break; | |
719 | case IP2K_OPERAND_ADDR16L : | |
720 | value = fields->f_imm8; | |
721 | break; | |
722 | case IP2K_OPERAND_ADDR16P : | |
723 | value = fields->f_page3; | |
724 | break; | |
725 | case IP2K_OPERAND_BITNO : | |
726 | value = fields->f_bitno; | |
727 | break; | |
728 | case IP2K_OPERAND_CBIT : | |
729 | value = 0; | |
730 | break; | |
731 | case IP2K_OPERAND_DCBIT : | |
732 | value = 0; | |
733 | break; | |
734 | case IP2K_OPERAND_FR : | |
735 | value = fields->f_reg; | |
736 | break; | |
737 | case IP2K_OPERAND_LIT8 : | |
738 | value = fields->f_imm8; | |
739 | break; | |
740 | case IP2K_OPERAND_PABITS : | |
741 | value = 0; | |
742 | break; | |
743 | case IP2K_OPERAND_RETI3 : | |
744 | value = fields->f_reti3; | |
745 | break; | |
746 | case IP2K_OPERAND_ZBIT : | |
747 | value = 0; | |
748 | break; | |
749 | ||
750 | default : | |
751 | /* xgettext:c-format */ | |
752 | fprintf (stderr, _("Unrecognized field %d while getting int operand.\n"), | |
753 | opindex); | |
754 | abort (); | |
755 | } | |
756 | ||
757 | return value; | |
758 | } | |
759 | ||
760 | bfd_vma | |
47b0e7ad NC |
761 | ip2k_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
762 | int opindex, | |
763 | const CGEN_FIELDS * fields) | |
a40cbfa3 NC |
764 | { |
765 | bfd_vma value; | |
766 | ||
767 | switch (opindex) | |
768 | { | |
769 | case IP2K_OPERAND_ADDR16CJP : | |
770 | value = fields->f_addr16cjp; | |
771 | break; | |
772 | case IP2K_OPERAND_ADDR16H : | |
773 | value = fields->f_imm8; | |
774 | break; | |
775 | case IP2K_OPERAND_ADDR16L : | |
776 | value = fields->f_imm8; | |
777 | break; | |
778 | case IP2K_OPERAND_ADDR16P : | |
779 | value = fields->f_page3; | |
780 | break; | |
781 | case IP2K_OPERAND_BITNO : | |
782 | value = fields->f_bitno; | |
783 | break; | |
784 | case IP2K_OPERAND_CBIT : | |
785 | value = 0; | |
786 | break; | |
787 | case IP2K_OPERAND_DCBIT : | |
788 | value = 0; | |
789 | break; | |
790 | case IP2K_OPERAND_FR : | |
791 | value = fields->f_reg; | |
792 | break; | |
793 | case IP2K_OPERAND_LIT8 : | |
794 | value = fields->f_imm8; | |
795 | break; | |
796 | case IP2K_OPERAND_PABITS : | |
797 | value = 0; | |
798 | break; | |
799 | case IP2K_OPERAND_RETI3 : | |
800 | value = fields->f_reti3; | |
801 | break; | |
802 | case IP2K_OPERAND_ZBIT : | |
803 | value = 0; | |
804 | break; | |
805 | ||
806 | default : | |
807 | /* xgettext:c-format */ | |
808 | fprintf (stderr, _("Unrecognized field %d while getting vma operand.\n"), | |
809 | opindex); | |
810 | abort (); | |
811 | } | |
812 | ||
813 | return value; | |
814 | } | |
815 | ||
47b0e7ad NC |
816 | void ip2k_cgen_set_int_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, int); |
817 | void ip2k_cgen_set_vma_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma); | |
a40cbfa3 NC |
818 | |
819 | /* Stuffing values in cgen_fields is handled by a collection of functions. | |
820 | They are distinguished by the type of the VALUE argument they accept. | |
821 | TODO: floating point, inlining support, remove cases where argument type | |
822 | not appropriate. */ | |
823 | ||
824 | void | |
47b0e7ad NC |
825 | ip2k_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
826 | int opindex, | |
827 | CGEN_FIELDS * fields, | |
828 | int value) | |
a40cbfa3 NC |
829 | { |
830 | switch (opindex) | |
831 | { | |
832 | case IP2K_OPERAND_ADDR16CJP : | |
833 | fields->f_addr16cjp = value; | |
834 | break; | |
835 | case IP2K_OPERAND_ADDR16H : | |
836 | fields->f_imm8 = value; | |
837 | break; | |
838 | case IP2K_OPERAND_ADDR16L : | |
839 | fields->f_imm8 = value; | |
840 | break; | |
841 | case IP2K_OPERAND_ADDR16P : | |
842 | fields->f_page3 = value; | |
843 | break; | |
844 | case IP2K_OPERAND_BITNO : | |
845 | fields->f_bitno = value; | |
846 | break; | |
847 | case IP2K_OPERAND_CBIT : | |
848 | break; | |
849 | case IP2K_OPERAND_DCBIT : | |
850 | break; | |
851 | case IP2K_OPERAND_FR : | |
852 | fields->f_reg = value; | |
853 | break; | |
854 | case IP2K_OPERAND_LIT8 : | |
855 | fields->f_imm8 = value; | |
856 | break; | |
857 | case IP2K_OPERAND_PABITS : | |
858 | break; | |
859 | case IP2K_OPERAND_RETI3 : | |
860 | fields->f_reti3 = value; | |
861 | break; | |
862 | case IP2K_OPERAND_ZBIT : | |
863 | break; | |
864 | ||
865 | default : | |
866 | /* xgettext:c-format */ | |
867 | fprintf (stderr, _("Unrecognized field %d while setting int operand.\n"), | |
868 | opindex); | |
869 | abort (); | |
870 | } | |
871 | } | |
872 | ||
873 | void | |
47b0e7ad NC |
874 | ip2k_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
875 | int opindex, | |
876 | CGEN_FIELDS * fields, | |
877 | bfd_vma value) | |
a40cbfa3 NC |
878 | { |
879 | switch (opindex) | |
880 | { | |
881 | case IP2K_OPERAND_ADDR16CJP : | |
882 | fields->f_addr16cjp = value; | |
883 | break; | |
884 | case IP2K_OPERAND_ADDR16H : | |
885 | fields->f_imm8 = value; | |
886 | break; | |
887 | case IP2K_OPERAND_ADDR16L : | |
888 | fields->f_imm8 = value; | |
889 | break; | |
890 | case IP2K_OPERAND_ADDR16P : | |
891 | fields->f_page3 = value; | |
892 | break; | |
893 | case IP2K_OPERAND_BITNO : | |
894 | fields->f_bitno = value; | |
895 | break; | |
896 | case IP2K_OPERAND_CBIT : | |
897 | break; | |
898 | case IP2K_OPERAND_DCBIT : | |
899 | break; | |
900 | case IP2K_OPERAND_FR : | |
901 | fields->f_reg = value; | |
902 | break; | |
903 | case IP2K_OPERAND_LIT8 : | |
904 | fields->f_imm8 = value; | |
905 | break; | |
906 | case IP2K_OPERAND_PABITS : | |
907 | break; | |
908 | case IP2K_OPERAND_RETI3 : | |
909 | fields->f_reti3 = value; | |
910 | break; | |
911 | case IP2K_OPERAND_ZBIT : | |
912 | break; | |
913 | ||
914 | default : | |
915 | /* xgettext:c-format */ | |
916 | fprintf (stderr, _("Unrecognized field %d while setting vma operand.\n"), | |
917 | opindex); | |
918 | abort (); | |
919 | } | |
920 | } | |
921 | ||
922 | /* Function to call before using the instruction builder tables. */ | |
923 | ||
924 | void | |
47b0e7ad | 925 | ip2k_cgen_init_ibld_table (CGEN_CPU_DESC cd) |
a40cbfa3 NC |
926 | { |
927 | cd->insert_handlers = & ip2k_cgen_insert_handlers[0]; | |
928 | cd->extract_handlers = & ip2k_cgen_extract_handlers[0]; | |
929 | ||
930 | cd->insert_operand = ip2k_cgen_insert_operand; | |
931 | cd->extract_operand = ip2k_cgen_extract_operand; | |
932 | ||
933 | cd->get_int_operand = ip2k_cgen_get_int_operand; | |
934 | cd->set_int_operand = ip2k_cgen_set_int_operand; | |
935 | cd->get_vma_operand = ip2k_cgen_get_vma_operand; | |
936 | cd->set_vma_operand = ip2k_cgen_set_vma_operand; | |
937 | } |