Commit | Line | Data |
---|---|---|
f6e6b40f BE |
1 | /* Instruction building/extraction support for @arch@. -*- 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 | |
f6e6b40f | 5 | |
b3adc24a | 6 | Copyright (C) 1996-2020 Free Software Foundation, Inc. |
f6e6b40f | 7 | |
9b201bb5 | 8 | This file is part of libopcodes. |
f6e6b40f | 9 | |
9b201bb5 | 10 | This library is free software; you can redistribute it and/or modify |
47b0e7ad | 11 | it under the terms of the GNU General Public License as published by |
9b201bb5 | 12 | the Free Software Foundation; either version 3, or (at your option) |
47b0e7ad | 13 | any later version. |
f6e6b40f | 14 | |
9b201bb5 NC |
15 | It is distributed in the hope that it will be useful, but WITHOUT |
16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
17 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
18 | License for more details. | |
f6e6b40f | 19 | |
47b0e7ad NC |
20 | You should have received a copy of the GNU General Public License |
21 | along with this program; if not, write to the Free Software Foundation, Inc., | |
22 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |
f6e6b40f BE |
23 | |
24 | /* ??? Eventually more and more of this stuff can go to cpu-independent files. | |
25 | Keep that in mind. */ | |
26 | ||
27 | #include "sysdep.h" | |
f6e6b40f BE |
28 | #include <stdio.h> |
29 | #include "ansidecl.h" | |
30 | #include "dis-asm.h" | |
31 | #include "bfd.h" | |
32 | #include "symcat.h" | |
33 | #include "@prefix@-desc.h" | |
34 | #include "@prefix@-opc.h" | |
fe8afbc4 | 35 | #include "cgen/basic-modes.h" |
f6e6b40f | 36 | #include "opintl.h" |
37111cc7 | 37 | #include "safe-ctype.h" |
f6e6b40f | 38 | |
47b0e7ad | 39 | #undef min |
f6e6b40f | 40 | #define min(a,b) ((a) < (b) ? (a) : (b)) |
47b0e7ad | 41 | #undef max |
f6e6b40f BE |
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 | |
10e05405 MM |
48 | (CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int, |
49 | unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR); | |
f6e6b40f | 50 | static const char * insert_insn_normal |
10e05405 MM |
51 | (CGEN_CPU_DESC, const CGEN_INSN *, |
52 | CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma); | |
f6e6b40f | 53 | static int extract_normal |
10e05405 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 *); | |
f6e6b40f | 57 | static int extract_insn_normal |
10e05405 MM |
58 | (CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *, |
59 | CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma); | |
0e2ee3ca | 60 | #if CGEN_INT_INSN_P |
6bb95a0f | 61 | static void put_insn_int_value |
10e05405 | 62 | (CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT); |
0e2ee3ca NC |
63 | #endif |
64 | #if ! CGEN_INT_INSN_P | |
65 | static CGEN_INLINE void insert_1 | |
10e05405 | 66 | (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *); |
0e2ee3ca | 67 | static CGEN_INLINE int fill_cache |
10e05405 | 68 | (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, bfd_vma); |
0e2ee3ca | 69 | static CGEN_INLINE long extract_1 |
10e05405 | 70 | (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma); |
0e2ee3ca | 71 | #endif |
f6e6b40f BE |
72 | \f |
73 | /* Operand insertion. */ | |
74 | ||
75 | #if ! CGEN_INT_INSN_P | |
76 | ||
77 | /* Subroutine of insert_normal. */ | |
78 | ||
79 | static CGEN_INLINE void | |
10e05405 MM |
80 | insert_1 (CGEN_CPU_DESC cd, |
81 | unsigned long value, | |
44d221f0 MM |
82 | int start, |
83 | int length, | |
84 | int word_length, | |
10e05405 | 85 | unsigned char *bufp) |
f6e6b40f | 86 | { |
a1e60a1b | 87 | unsigned long x, mask; |
f6e6b40f | 88 | int shift; |
f6e6b40f | 89 | |
e9bffec9 | 90 | x = cgen_get_insn_value (cd, bufp, word_length, cd->endian); |
f6e6b40f BE |
91 | |
92 | /* Written this way to avoid undefined behaviour. */ | |
a1e60a1b | 93 | mask = (1UL << (length - 1) << 1) - 1; |
f6e6b40f BE |
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 | ||
e9bffec9 | 100 | cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x, cd->endian); |
f6e6b40f BE |
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 * | |
10e05405 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) | |
f6e6b40f BE |
131 | { |
132 | static char errbuf[100]; | |
a1e60a1b | 133 | unsigned long mask; |
f6e6b40f BE |
134 | |
135 | /* If LENGTH is zero, this operand doesn't contribute to the value. */ | |
136 | if (length == 0) | |
137 | return NULL; | |
138 | ||
a1e60a1b AM |
139 | /* Written this way to avoid undefined behaviour. */ |
140 | mask = (1UL << (length - 1) << 1) - 1; | |
141 | ||
b7cd1872 | 142 | if (word_length > 8 * sizeof (CGEN_INSN_INT)) |
f6e6b40f BE |
143 | abort (); |
144 | ||
145 | /* For architectures with insns smaller than the base-insn-bitsize, | |
146 | word_length may be too big. */ | |
147 | if (cd->min_insn_bitsize < cd->base_insn_bitsize) | |
148 | { | |
149 | if (word_offset == 0 | |
150 | && word_length > total_length) | |
151 | word_length = total_length; | |
152 | } | |
153 | ||
154 | /* Ensure VALUE will fit. */ | |
17f0ac84 GK |
155 | if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT)) |
156 | { | |
157 | long minval = - (1L << (length - 1)); | |
158 | unsigned long maxval = mask; | |
43e65147 | 159 | |
17f0ac84 GK |
160 | if ((value > 0 && (unsigned long) value > maxval) |
161 | || value < minval) | |
162 | { | |
163 | /* xgettext:c-format */ | |
164 | sprintf (errbuf, | |
165 | _("operand out of range (%ld not between %ld and %lu)"), | |
166 | value, minval, maxval); | |
167 | return errbuf; | |
168 | } | |
169 | } | |
170 | else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)) | |
f6e6b40f BE |
171 | { |
172 | unsigned long maxval = mask; | |
ed963e2d NC |
173 | unsigned long val = (unsigned long) value; |
174 | ||
175 | /* For hosts with a word size > 32 check to see if value has been sign | |
176 | extended beyond 32 bits. If so then ignore these higher sign bits | |
177 | as the user is attempting to store a 32-bit signed value into an | |
178 | unsigned 32-bit field which is allowed. */ | |
179 | if (sizeof (unsigned long) > 4 && ((value >> 32) == -1)) | |
180 | val &= 0xFFFFFFFF; | |
181 | ||
182 | if (val > maxval) | |
f6e6b40f BE |
183 | { |
184 | /* xgettext:c-format */ | |
185 | sprintf (errbuf, | |
ed963e2d NC |
186 | _("operand out of range (0x%lx not between 0 and 0x%lx)"), |
187 | val, maxval); | |
f6e6b40f BE |
188 | return errbuf; |
189 | } | |
190 | } | |
191 | else | |
192 | { | |
193 | if (! cgen_signed_overflow_ok_p (cd)) | |
194 | { | |
195 | long minval = - (1L << (length - 1)); | |
196 | long maxval = (1L << (length - 1)) - 1; | |
43e65147 | 197 | |
f6e6b40f BE |
198 | if (value < minval || value > maxval) |
199 | { | |
200 | sprintf | |
201 | /* xgettext:c-format */ | |
202 | (errbuf, _("operand out of range (%ld not between %ld and %ld)"), | |
203 | value, minval, maxval); | |
204 | return errbuf; | |
205 | } | |
206 | } | |
207 | } | |
208 | ||
209 | #if CGEN_INT_INSN_P | |
210 | ||
211 | { | |
a143b004 | 212 | int shift_within_word, shift_to_word, shift; |
f6e6b40f | 213 | |
a143b004 AB |
214 | /* How to shift the value to BIT0 of the word. */ |
215 | shift_to_word = total_length - (word_offset + word_length); | |
216 | ||
217 | /* How to shift the value to the field within the word. */ | |
f6e6b40f | 218 | if (CGEN_INSN_LSB0_P) |
a143b004 | 219 | shift_within_word = start + 1 - length; |
f6e6b40f | 220 | else |
a143b004 AB |
221 | shift_within_word = word_length - start - length; |
222 | ||
223 | /* The total SHIFT, then mask in the value. */ | |
224 | shift = shift_to_word + shift_within_word; | |
f6e6b40f BE |
225 | *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift); |
226 | } | |
227 | ||
228 | #else /* ! CGEN_INT_INSN_P */ | |
229 | ||
230 | { | |
231 | unsigned char *bufp = (unsigned char *) buffer + word_offset / 8; | |
232 | ||
233 | insert_1 (cd, value, start, length, word_length, bufp); | |
234 | } | |
235 | ||
236 | #endif /* ! CGEN_INT_INSN_P */ | |
237 | ||
238 | return NULL; | |
239 | } | |
240 | ||
241 | /* Default insn builder (insert handler). | |
0e70c820 BE |
242 | The instruction is recorded in CGEN_INT_INSN_P byte order (meaning |
243 | that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is | |
244 | recorded in host byte order, otherwise BUFFER is an array of bytes | |
245 | and the value is recorded in target byte order). | |
f6e6b40f BE |
246 | The result is an error message or NULL if success. */ |
247 | ||
248 | static const char * | |
10e05405 MM |
249 | insert_insn_normal (CGEN_CPU_DESC cd, |
250 | const CGEN_INSN * insn, | |
251 | CGEN_FIELDS * fields, | |
252 | CGEN_INSN_BYTES_PTR buffer, | |
253 | bfd_vma pc) | |
f6e6b40f BE |
254 | { |
255 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
256 | unsigned long value; | |
4a9f416d | 257 | const CGEN_SYNTAX_CHAR_TYPE * syn; |
f6e6b40f BE |
258 | |
259 | CGEN_INIT_INSERT (cd); | |
260 | value = CGEN_INSN_BASE_VALUE (insn); | |
261 | ||
262 | /* If we're recording insns as numbers (rather than a string of bytes), | |
263 | target byte order handling is deferred until later. */ | |
264 | ||
265 | #if CGEN_INT_INSN_P | |
266 | ||
6bb95a0f DB |
267 | put_insn_int_value (cd, buffer, cd->base_insn_bitsize, |
268 | CGEN_FIELDS_BITSIZE (fields), value); | |
f6e6b40f BE |
269 | |
270 | #else | |
271 | ||
0e2ee3ca | 272 | cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize, |
e9bffec9 JM |
273 | (unsigned) CGEN_FIELDS_BITSIZE (fields)), |
274 | value, cd->insn_endian); | |
f6e6b40f BE |
275 | |
276 | #endif /* ! CGEN_INT_INSN_P */ | |
277 | ||
278 | /* ??? It would be better to scan the format's fields. | |
279 | Still need to be able to insert a value based on the operand though; | |
280 | e.g. storing a branch displacement that got resolved later. | |
281 | Needs more thought first. */ | |
282 | ||
4a9f416d | 283 | for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn) |
f6e6b40f BE |
284 | { |
285 | const char *errmsg; | |
286 | ||
287 | if (CGEN_SYNTAX_CHAR_P (* syn)) | |
288 | continue; | |
289 | ||
290 | errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn), | |
291 | fields, buffer, pc); | |
292 | if (errmsg) | |
293 | return errmsg; | |
294 | } | |
295 | ||
296 | return NULL; | |
297 | } | |
6bb95a0f | 298 | |
0e2ee3ca | 299 | #if CGEN_INT_INSN_P |
6bb95a0f | 300 | /* Cover function to store an insn value into an integral insn. Must go here |
47b0e7ad | 301 | because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */ |
6bb95a0f DB |
302 | |
303 | static void | |
10e05405 MM |
304 | put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
305 | CGEN_INSN_BYTES_PTR buf, | |
306 | int length, | |
307 | int insn_length, | |
308 | CGEN_INSN_INT value) | |
6bb95a0f DB |
309 | { |
310 | /* For architectures with insns smaller than the base-insn-bitsize, | |
311 | length may be too big. */ | |
312 | if (length > insn_length) | |
313 | *buf = value; | |
314 | else | |
315 | { | |
316 | int shift = insn_length - length; | |
317 | /* Written this way to avoid undefined behaviour. */ | |
a1e60a1b | 318 | CGEN_INSN_INT mask = length == 0 ? 0 : (1UL << (length - 1) << 1) - 1; |
47b0e7ad | 319 | |
6bb95a0f DB |
320 | *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift); |
321 | } | |
322 | } | |
0e2ee3ca | 323 | #endif |
f6e6b40f BE |
324 | \f |
325 | /* Operand extraction. */ | |
326 | ||
327 | #if ! CGEN_INT_INSN_P | |
328 | ||
329 | /* Subroutine of extract_normal. | |
330 | Ensure sufficient bytes are cached in EX_INFO. | |
331 | OFFSET is the offset in bytes from the start of the insn of the value. | |
332 | BYTES is the length of the needed value. | |
333 | Returns 1 for success, 0 for failure. */ | |
334 | ||
335 | static CGEN_INLINE int | |
10e05405 MM |
336 | fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, |
337 | CGEN_EXTRACT_INFO *ex_info, | |
44d221f0 MM |
338 | int offset, |
339 | int bytes, | |
10e05405 | 340 | bfd_vma pc) |
f6e6b40f BE |
341 | { |
342 | /* It's doubtful that the middle part has already been fetched so | |
343 | we don't optimize that case. kiss. */ | |
0e2ee3ca | 344 | unsigned int mask; |
f6e6b40f BE |
345 | disassemble_info *info = (disassemble_info *) ex_info->dis_info; |
346 | ||
347 | /* First do a quick check. */ | |
348 | mask = (1 << bytes) - 1; | |
349 | if (((ex_info->valid >> offset) & mask) == mask) | |
350 | return 1; | |
351 | ||
352 | /* Search for the first byte we need to read. */ | |
353 | for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1) | |
354 | if (! (mask & ex_info->valid)) | |
355 | break; | |
356 | ||
357 | if (bytes) | |
358 | { | |
359 | int status; | |
360 | ||
361 | pc += offset; | |
362 | status = (*info->read_memory_func) | |
363 | (pc, ex_info->insn_bytes + offset, bytes, info); | |
364 | ||
365 | if (status != 0) | |
366 | { | |
367 | (*info->memory_error_func) (status, pc, info); | |
368 | return 0; | |
369 | } | |
370 | ||
371 | ex_info->valid |= ((1 << bytes) - 1) << offset; | |
372 | } | |
373 | ||
374 | return 1; | |
375 | } | |
376 | ||
377 | /* Subroutine of extract_normal. */ | |
378 | ||
379 | static CGEN_INLINE long | |
10e05405 MM |
380 | extract_1 (CGEN_CPU_DESC cd, |
381 | CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED, | |
382 | int start, | |
383 | int length, | |
384 | int word_length, | |
385 | unsigned char *bufp, | |
386 | bfd_vma pc ATTRIBUTE_UNUSED) | |
f6e6b40f | 387 | { |
aed80dae | 388 | unsigned long x; |
f6e6b40f | 389 | int shift; |
47b0e7ad | 390 | |
e9bffec9 | 391 | x = cgen_get_insn_value (cd, bufp, word_length, cd->endian); |
e333d2c4 | 392 | |
f6e6b40f BE |
393 | if (CGEN_INSN_LSB0_P) |
394 | shift = (start + 1) - length; | |
395 | else | |
396 | shift = (word_length - (start + length)); | |
aed80dae | 397 | return x >> shift; |
f6e6b40f BE |
398 | } |
399 | ||
400 | #endif /* ! CGEN_INT_INSN_P */ | |
401 | ||
402 | /* Default extraction routine. | |
403 | ||
404 | INSN_VALUE is the first base_insn_bitsize bits of the insn in host order, | |
405 | or sometimes less for cases like the m32r where the base insn size is 32 | |
406 | but some insns are 16 bits. | |
407 | ATTRS is a mask of the boolean attributes. We only need `SIGNED', | |
408 | but for generality we take a bitmask of all of them. | |
409 | WORD_OFFSET is the offset in bits from the start of the insn of the value. | |
410 | WORD_LENGTH is the length of the word in bits in which the value resides. | |
411 | START is the starting bit number in the word, architecture origin. | |
412 | LENGTH is the length of VALUE in bits. | |
413 | TOTAL_LENGTH is the total length of the insn in bits. | |
414 | ||
415 | Returns 1 for success, 0 for failure. */ | |
416 | ||
417 | /* ??? The return code isn't properly used. wip. */ | |
418 | ||
419 | /* ??? This doesn't handle bfd_vma's. Create another function when | |
420 | necessary. */ | |
421 | ||
422 | static int | |
44d221f0 | 423 | extract_normal (CGEN_CPU_DESC cd, |
f6e6b40f | 424 | #if ! CGEN_INT_INSN_P |
10e05405 | 425 | CGEN_EXTRACT_INFO *ex_info, |
f6e6b40f | 426 | #else |
10e05405 | 427 | CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED, |
f6e6b40f | 428 | #endif |
10e05405 MM |
429 | CGEN_INSN_INT insn_value, |
430 | unsigned int attrs, | |
431 | unsigned int word_offset, | |
432 | unsigned int start, | |
433 | unsigned int length, | |
434 | unsigned int word_length, | |
435 | unsigned int total_length, | |
f6e6b40f | 436 | #if ! CGEN_INT_INSN_P |
10e05405 | 437 | bfd_vma pc, |
f6e6b40f | 438 | #else |
10e05405 | 439 | bfd_vma pc ATTRIBUTE_UNUSED, |
f6e6b40f | 440 | #endif |
10e05405 | 441 | long *valuep) |
f6e6b40f | 442 | { |
fc7bc883 | 443 | long value, mask; |
f6e6b40f BE |
444 | |
445 | /* If LENGTH is zero, this operand doesn't contribute to the value | |
446 | so give it a standard value of zero. */ | |
447 | if (length == 0) | |
448 | { | |
449 | *valuep = 0; | |
450 | return 1; | |
451 | } | |
452 | ||
b7cd1872 | 453 | if (word_length > 8 * sizeof (CGEN_INSN_INT)) |
f6e6b40f BE |
454 | abort (); |
455 | ||
456 | /* For architectures with insns smaller than the insn-base-bitsize, | |
457 | word_length may be too big. */ | |
458 | if (cd->min_insn_bitsize < cd->base_insn_bitsize) | |
459 | { | |
54d46aca DD |
460 | if (word_offset + word_length > total_length) |
461 | word_length = total_length - word_offset; | |
f6e6b40f BE |
462 | } |
463 | ||
a00ad97d | 464 | /* Does the value reside in INSN_VALUE, and at the right alignment? */ |
f6e6b40f | 465 | |
a00ad97d | 466 | if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length)) |
f6e6b40f | 467 | { |
f6e6b40f | 468 | if (CGEN_INSN_LSB0_P) |
6bb95a0f | 469 | value = insn_value >> ((word_offset + start + 1) - length); |
f6e6b40f | 470 | else |
6bb95a0f | 471 | value = insn_value >> (total_length - ( word_offset + start + length)); |
f6e6b40f BE |
472 | } |
473 | ||
474 | #if ! CGEN_INT_INSN_P | |
475 | ||
476 | else | |
477 | { | |
478 | unsigned char *bufp = ex_info->insn_bytes + word_offset / 8; | |
479 | ||
b7cd1872 | 480 | if (word_length > 8 * sizeof (CGEN_INSN_INT)) |
f6e6b40f BE |
481 | abort (); |
482 | ||
483 | if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0) | |
2f5dd314 AM |
484 | { |
485 | *valuep = 0; | |
486 | return 0; | |
487 | } | |
f6e6b40f BE |
488 | |
489 | value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc); | |
490 | } | |
491 | ||
492 | #endif /* ! CGEN_INT_INSN_P */ | |
493 | ||
aed80dae | 494 | /* Written this way to avoid undefined behaviour. */ |
a1e60a1b | 495 | mask = (1UL << (length - 1) << 1) - 1; |
aed80dae FCE |
496 | |
497 | value &= mask; | |
498 | /* sign extend? */ | |
499 | if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED) | |
500 | && (value & (1L << (length - 1)))) | |
501 | value |= ~mask; | |
502 | ||
f6e6b40f BE |
503 | *valuep = value; |
504 | ||
505 | return 1; | |
506 | } | |
507 | ||
508 | /* Default insn extractor. | |
509 | ||
510 | INSN_VALUE is the first base_insn_bitsize bits, translated to host order. | |
511 | The extracted fields are stored in FIELDS. | |
512 | EX_INFO is used to handle reading variable length insns. | |
513 | Return the length of the insn in bits, or 0 if no match, | |
514 | or -1 if an error occurs fetching data (memory_error_func will have | |
515 | been called). */ | |
516 | ||
517 | static int | |
10e05405 MM |
518 | extract_insn_normal (CGEN_CPU_DESC cd, |
519 | const CGEN_INSN *insn, | |
520 | CGEN_EXTRACT_INFO *ex_info, | |
521 | CGEN_INSN_INT insn_value, | |
522 | CGEN_FIELDS *fields, | |
523 | bfd_vma pc) | |
f6e6b40f BE |
524 | { |
525 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
4a9f416d | 526 | const CGEN_SYNTAX_CHAR_TYPE *syn; |
f6e6b40f BE |
527 | |
528 | CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); | |
529 | ||
530 | CGEN_INIT_EXTRACT (cd); | |
531 | ||
532 | for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn) | |
533 | { | |
534 | int length; | |
535 | ||
536 | if (CGEN_SYNTAX_CHAR_P (*syn)) | |
537 | continue; | |
538 | ||
539 | length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn), | |
540 | ex_info, insn_value, fields, pc); | |
541 | if (length <= 0) | |
542 | return length; | |
543 | } | |
544 | ||
545 | /* We recognized and successfully extracted this insn. */ | |
546 | return CGEN_INSN_BITSIZE (insn); | |
547 | } | |
548 | \f | |
47b0e7ad | 549 | /* Machine generated code added here. */ |