gdb: add target_ops::supports_displaced_step
[deliverable/binutils-gdb.git] / opcodes / or1k-ibld.c
1 /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
2 /* Instruction building/extraction support for or1k. -*- C -*-
3
4 THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
5 - the resultant file is machine generated, cgen-ibld.in isn't
6
7 Copyright (C) 1996-2020 Free Software Foundation, Inc.
8
9 This file is part of libopcodes.
10
11 This library is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3, or (at your option)
14 any later version.
15
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.
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
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 "or1k-desc.h"
35 #include "or1k-opc.h"
36 #include "cgen/basic-modes.h"
37 #include "opintl.h"
38 #include "safe-ctype.h"
39
40 #undef min
41 #define min(a,b) ((a) < (b) ? (a) : (b))
42 #undef max
43 #define max(a,b) ((a) > (b) ? (a) : (b))
44
45 /* Used by the ifield rtx function. */
46 #define FLD(f) (fields->f)
47
48 static const char * insert_normal
49 (CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int,
50 unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR);
51 static const char * insert_insn_normal
52 (CGEN_CPU_DESC, const CGEN_INSN *,
53 CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
54 static int extract_normal
55 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT,
56 unsigned int, unsigned int, unsigned int, unsigned int,
57 unsigned int, unsigned int, bfd_vma, long *);
58 static int extract_insn_normal
59 (CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *,
60 CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
61 #if CGEN_INT_INSN_P
62 static void put_insn_int_value
63 (CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT);
64 #endif
65 #if ! CGEN_INT_INSN_P
66 static CGEN_INLINE void insert_1
67 (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *);
68 static CGEN_INLINE int fill_cache
69 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, bfd_vma);
70 static CGEN_INLINE long extract_1
71 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma);
72 #endif
73 \f
74 /* Operand insertion. */
75
76 #if ! CGEN_INT_INSN_P
77
78 /* Subroutine of insert_normal. */
79
80 static CGEN_INLINE void
81 insert_1 (CGEN_CPU_DESC cd,
82 unsigned long value,
83 int start,
84 int length,
85 int word_length,
86 unsigned char *bufp)
87 {
88 unsigned long x,mask;
89 int shift;
90
91 x = cgen_get_insn_value (cd, bufp, word_length);
92
93 /* Written this way to avoid undefined behaviour. */
94 mask = (((1L << (length - 1)) - 1) << 1) | 1;
95 if (CGEN_INSN_LSB0_P)
96 shift = (start + 1) - length;
97 else
98 shift = (word_length - (start + length));
99 x = (x & ~(mask << shift)) | ((value & mask) << shift);
100
101 cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x);
102 }
103
104 #endif /* ! CGEN_INT_INSN_P */
105
106 /* Default insertion routine.
107
108 ATTRS is a mask of the boolean attributes.
109 WORD_OFFSET is the offset in bits from the start of the insn of the value.
110 WORD_LENGTH is the length of the word in bits in which the value resides.
111 START is the starting bit number in the word, architecture origin.
112 LENGTH is the length of VALUE in bits.
113 TOTAL_LENGTH is the total length of the insn in bits.
114
115 The result is an error message or NULL if success. */
116
117 /* ??? This duplicates functionality with bfd's howto table and
118 bfd_install_relocation. */
119 /* ??? This doesn't handle bfd_vma's. Create another function when
120 necessary. */
121
122 static const char *
123 insert_normal (CGEN_CPU_DESC cd,
124 long value,
125 unsigned int attrs,
126 unsigned int word_offset,
127 unsigned int start,
128 unsigned int length,
129 unsigned int word_length,
130 unsigned int total_length,
131 CGEN_INSN_BYTES_PTR buffer)
132 {
133 static char errbuf[100];
134 /* Written this way to avoid undefined behaviour. */
135 unsigned long mask = (((1L << (length - 1)) - 1) << 1) | 1;
136
137 /* If LENGTH is zero, this operand doesn't contribute to the value. */
138 if (length == 0)
139 return NULL;
140
141 if (word_length > 8 * sizeof (CGEN_INSN_INT))
142 abort ();
143
144 /* For architectures with insns smaller than the base-insn-bitsize,
145 word_length may be too big. */
146 if (cd->min_insn_bitsize < cd->base_insn_bitsize)
147 {
148 if (word_offset == 0
149 && word_length > total_length)
150 word_length = total_length;
151 }
152
153 /* Ensure VALUE will fit. */
154 if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT))
155 {
156 long minval = - (1L << (length - 1));
157 unsigned long maxval = mask;
158
159 if ((value > 0 && (unsigned long) value > maxval)
160 || value < minval)
161 {
162 /* xgettext:c-format */
163 sprintf (errbuf,
164 _("operand out of range (%ld not between %ld and %lu)"),
165 value, minval, maxval);
166 return errbuf;
167 }
168 }
169 else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED))
170 {
171 unsigned long maxval = mask;
172 unsigned long val = (unsigned long) value;
173
174 /* For hosts with a word size > 32 check to see if value has been sign
175 extended beyond 32 bits. If so then ignore these higher sign bits
176 as the user is attempting to store a 32-bit signed value into an
177 unsigned 32-bit field which is allowed. */
178 if (sizeof (unsigned long) > 4 && ((value >> 32) == -1))
179 val &= 0xFFFFFFFF;
180
181 if (val > maxval)
182 {
183 /* xgettext:c-format */
184 sprintf (errbuf,
185 _("operand out of range (0x%lx not between 0 and 0x%lx)"),
186 val, maxval);
187 return errbuf;
188 }
189 }
190 else
191 {
192 if (! cgen_signed_overflow_ok_p (cd))
193 {
194 long minval = - (1L << (length - 1));
195 long maxval = (1L << (length - 1)) - 1;
196
197 if (value < minval || value > maxval)
198 {
199 sprintf
200 /* xgettext:c-format */
201 (errbuf, _("operand out of range (%ld not between %ld and %ld)"),
202 value, minval, maxval);
203 return errbuf;
204 }
205 }
206 }
207
208 #if CGEN_INT_INSN_P
209
210 {
211 int shift_within_word, shift_to_word, shift;
212
213 /* How to shift the value to BIT0 of the word. */
214 shift_to_word = total_length - (word_offset + word_length);
215
216 /* How to shift the value to the field within the word. */
217 if (CGEN_INSN_LSB0_P)
218 shift_within_word = start + 1 - length;
219 else
220 shift_within_word = word_length - start - length;
221
222 /* The total SHIFT, then mask in the value. */
223 shift = shift_to_word + shift_within_word;
224 *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
225 }
226
227 #else /* ! CGEN_INT_INSN_P */
228
229 {
230 unsigned char *bufp = (unsigned char *) buffer + word_offset / 8;
231
232 insert_1 (cd, value, start, length, word_length, bufp);
233 }
234
235 #endif /* ! CGEN_INT_INSN_P */
236
237 return NULL;
238 }
239
240 /* Default insn builder (insert handler).
241 The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
242 that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
243 recorded in host byte order, otherwise BUFFER is an array of bytes
244 and the value is recorded in target byte order).
245 The result is an error message or NULL if success. */
246
247 static const char *
248 insert_insn_normal (CGEN_CPU_DESC cd,
249 const CGEN_INSN * insn,
250 CGEN_FIELDS * fields,
251 CGEN_INSN_BYTES_PTR buffer,
252 bfd_vma pc)
253 {
254 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
255 unsigned long value;
256 const CGEN_SYNTAX_CHAR_TYPE * syn;
257
258 CGEN_INIT_INSERT (cd);
259 value = CGEN_INSN_BASE_VALUE (insn);
260
261 /* If we're recording insns as numbers (rather than a string of bytes),
262 target byte order handling is deferred until later. */
263
264 #if CGEN_INT_INSN_P
265
266 put_insn_int_value (cd, buffer, cd->base_insn_bitsize,
267 CGEN_FIELDS_BITSIZE (fields), value);
268
269 #else
270
271 cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize,
272 (unsigned) CGEN_FIELDS_BITSIZE (fields)),
273 value);
274
275 #endif /* ! CGEN_INT_INSN_P */
276
277 /* ??? It would be better to scan the format's fields.
278 Still need to be able to insert a value based on the operand though;
279 e.g. storing a branch displacement that got resolved later.
280 Needs more thought first. */
281
282 for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn)
283 {
284 const char *errmsg;
285
286 if (CGEN_SYNTAX_CHAR_P (* syn))
287 continue;
288
289 errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
290 fields, buffer, pc);
291 if (errmsg)
292 return errmsg;
293 }
294
295 return NULL;
296 }
297
298 #if CGEN_INT_INSN_P
299 /* Cover function to store an insn value into an integral insn. Must go here
300 because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */
301
302 static void
303 put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
304 CGEN_INSN_BYTES_PTR buf,
305 int length,
306 int insn_length,
307 CGEN_INSN_INT value)
308 {
309 /* For architectures with insns smaller than the base-insn-bitsize,
310 length may be too big. */
311 if (length > insn_length)
312 *buf = value;
313 else
314 {
315 int shift = insn_length - length;
316 /* Written this way to avoid undefined behaviour. */
317 CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1;
318
319 *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift);
320 }
321 }
322 #endif
323 \f
324 /* Operand extraction. */
325
326 #if ! CGEN_INT_INSN_P
327
328 /* Subroutine of extract_normal.
329 Ensure sufficient bytes are cached in EX_INFO.
330 OFFSET is the offset in bytes from the start of the insn of the value.
331 BYTES is the length of the needed value.
332 Returns 1 for success, 0 for failure. */
333
334 static CGEN_INLINE int
335 fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
336 CGEN_EXTRACT_INFO *ex_info,
337 int offset,
338 int bytes,
339 bfd_vma pc)
340 {
341 /* It's doubtful that the middle part has already been fetched so
342 we don't optimize that case. kiss. */
343 unsigned int mask;
344 disassemble_info *info = (disassemble_info *) ex_info->dis_info;
345
346 /* First do a quick check. */
347 mask = (1 << bytes) - 1;
348 if (((ex_info->valid >> offset) & mask) == mask)
349 return 1;
350
351 /* Search for the first byte we need to read. */
352 for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
353 if (! (mask & ex_info->valid))
354 break;
355
356 if (bytes)
357 {
358 int status;
359
360 pc += offset;
361 status = (*info->read_memory_func)
362 (pc, ex_info->insn_bytes + offset, bytes, info);
363
364 if (status != 0)
365 {
366 (*info->memory_error_func) (status, pc, info);
367 return 0;
368 }
369
370 ex_info->valid |= ((1 << bytes) - 1) << offset;
371 }
372
373 return 1;
374 }
375
376 /* Subroutine of extract_normal. */
377
378 static CGEN_INLINE long
379 extract_1 (CGEN_CPU_DESC cd,
380 CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
381 int start,
382 int length,
383 int word_length,
384 unsigned char *bufp,
385 bfd_vma pc ATTRIBUTE_UNUSED)
386 {
387 unsigned long x;
388 int shift;
389
390 x = cgen_get_insn_value (cd, bufp, word_length);
391
392 if (CGEN_INSN_LSB0_P)
393 shift = (start + 1) - length;
394 else
395 shift = (word_length - (start + length));
396 return x >> shift;
397 }
398
399 #endif /* ! CGEN_INT_INSN_P */
400
401 /* Default extraction routine.
402
403 INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
404 or sometimes less for cases like the m32r where the base insn size is 32
405 but some insns are 16 bits.
406 ATTRS is a mask of the boolean attributes. We only need `SIGNED',
407 but for generality we take a bitmask of all of them.
408 WORD_OFFSET is the offset in bits from the start of the insn of the value.
409 WORD_LENGTH is the length of the word in bits in which the value resides.
410 START is the starting bit number in the word, architecture origin.
411 LENGTH is the length of VALUE in bits.
412 TOTAL_LENGTH is the total length of the insn in bits.
413
414 Returns 1 for success, 0 for failure. */
415
416 /* ??? The return code isn't properly used. wip. */
417
418 /* ??? This doesn't handle bfd_vma's. Create another function when
419 necessary. */
420
421 static int
422 extract_normal (CGEN_CPU_DESC cd,
423 #if ! CGEN_INT_INSN_P
424 CGEN_EXTRACT_INFO *ex_info,
425 #else
426 CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
427 #endif
428 CGEN_INSN_INT insn_value,
429 unsigned int attrs,
430 unsigned int word_offset,
431 unsigned int start,
432 unsigned int length,
433 unsigned int word_length,
434 unsigned int total_length,
435 #if ! CGEN_INT_INSN_P
436 bfd_vma pc,
437 #else
438 bfd_vma pc ATTRIBUTE_UNUSED,
439 #endif
440 long *valuep)
441 {
442 long value, mask;
443
444 /* If LENGTH is zero, this operand doesn't contribute to the value
445 so give it a standard value of zero. */
446 if (length == 0)
447 {
448 *valuep = 0;
449 return 1;
450 }
451
452 if (word_length > 8 * sizeof (CGEN_INSN_INT))
453 abort ();
454
455 /* For architectures with insns smaller than the insn-base-bitsize,
456 word_length may be too big. */
457 if (cd->min_insn_bitsize < cd->base_insn_bitsize)
458 {
459 if (word_offset + word_length > total_length)
460 word_length = total_length - word_offset;
461 }
462
463 /* Does the value reside in INSN_VALUE, and at the right alignment? */
464
465 if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length))
466 {
467 if (CGEN_INSN_LSB0_P)
468 value = insn_value >> ((word_offset + start + 1) - length);
469 else
470 value = insn_value >> (total_length - ( word_offset + start + length));
471 }
472
473 #if ! CGEN_INT_INSN_P
474
475 else
476 {
477 unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
478
479 if (word_length > 8 * sizeof (CGEN_INSN_INT))
480 abort ();
481
482 if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
483 {
484 *valuep = 0;
485 return 0;
486 }
487
488 value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc);
489 }
490
491 #endif /* ! CGEN_INT_INSN_P */
492
493 /* Written this way to avoid undefined behaviour. */
494 mask = (((1L << (length - 1)) - 1) << 1) | 1;
495
496 value &= mask;
497 /* sign extend? */
498 if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)
499 && (value & (1L << (length - 1))))
500 value |= ~mask;
501
502 *valuep = value;
503
504 return 1;
505 }
506
507 /* Default insn extractor.
508
509 INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
510 The extracted fields are stored in FIELDS.
511 EX_INFO is used to handle reading variable length insns.
512 Return the length of the insn in bits, or 0 if no match,
513 or -1 if an error occurs fetching data (memory_error_func will have
514 been called). */
515
516 static int
517 extract_insn_normal (CGEN_CPU_DESC cd,
518 const CGEN_INSN *insn,
519 CGEN_EXTRACT_INFO *ex_info,
520 CGEN_INSN_INT insn_value,
521 CGEN_FIELDS *fields,
522 bfd_vma pc)
523 {
524 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
525 const CGEN_SYNTAX_CHAR_TYPE *syn;
526
527 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
528
529 CGEN_INIT_EXTRACT (cd);
530
531 for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
532 {
533 int length;
534
535 if (CGEN_SYNTAX_CHAR_P (*syn))
536 continue;
537
538 length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
539 ex_info, insn_value, fields, pc);
540 if (length <= 0)
541 return length;
542 }
543
544 /* We recognized and successfully extracted this insn. */
545 return CGEN_INSN_BITSIZE (insn);
546 }
547 \f
548 /* Machine generated code added here. */
549
550 const char * or1k_cgen_insert_operand
551 (CGEN_CPU_DESC, int, CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
552
553 /* Main entry point for operand insertion.
554
555 This function is basically just a big switch statement. Earlier versions
556 used tables to look up the function to use, but
557 - if the table contains both assembler and disassembler functions then
558 the disassembler contains much of the assembler and vice-versa,
559 - there's a lot of inlining possibilities as things grow,
560 - using a switch statement avoids the function call overhead.
561
562 This function could be moved into `parse_insn_normal', but keeping it
563 separate makes clear the interface between `parse_insn_normal' and each of
564 the handlers. It's also needed by GAS to insert operands that couldn't be
565 resolved during parsing. */
566
567 const char *
568 or1k_cgen_insert_operand (CGEN_CPU_DESC cd,
569 int opindex,
570 CGEN_FIELDS * fields,
571 CGEN_INSN_BYTES_PTR buffer,
572 bfd_vma pc ATTRIBUTE_UNUSED)
573 {
574 const char * errmsg = NULL;
575 unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
576
577 switch (opindex)
578 {
579 case OR1K_OPERAND_DISP21 :
580 {
581 long value = fields->f_disp21;
582 value = ((((SI) (value) >> (13))) - (((SI) (pc) >> (13))));
583 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_ABS_ADDR), 0, 20, 21, 32, total_length, buffer);
584 }
585 break;
586 case OR1K_OPERAND_DISP26 :
587 {
588 long value = fields->f_disp26;
589 value = ((SI) (((value) - (pc))) >> (2));
590 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 25, 26, 32, total_length, buffer);
591 }
592 break;
593 case OR1K_OPERAND_RA :
594 errmsg = insert_normal (cd, fields->f_r2, 0, 0, 20, 5, 32, total_length, buffer);
595 break;
596 case OR1K_OPERAND_RAD32F :
597 {
598 {
599 FLD (f_r2) = ((FLD (f_rad32)) & (31));
600 FLD (f_raoff_9_1) = ((((SI) (FLD (f_rad32)) >> (5))) & (1));
601 }
602 errmsg = insert_normal (cd, fields->f_r2, 0, 0, 20, 5, 32, total_length, buffer);
603 if (errmsg)
604 break;
605 errmsg = insert_normal (cd, fields->f_raoff_9_1, 0, 0, 9, 1, 32, total_length, buffer);
606 if (errmsg)
607 break;
608 }
609 break;
610 case OR1K_OPERAND_RADI :
611 {
612 {
613 FLD (f_r2) = ((FLD (f_rad32)) & (31));
614 FLD (f_raoff_9_1) = ((((SI) (FLD (f_rad32)) >> (5))) & (1));
615 }
616 errmsg = insert_normal (cd, fields->f_r2, 0, 0, 20, 5, 32, total_length, buffer);
617 if (errmsg)
618 break;
619 errmsg = insert_normal (cd, fields->f_raoff_9_1, 0, 0, 9, 1, 32, total_length, buffer);
620 if (errmsg)
621 break;
622 }
623 break;
624 case OR1K_OPERAND_RASF :
625 errmsg = insert_normal (cd, fields->f_r2, 0, 0, 20, 5, 32, total_length, buffer);
626 break;
627 case OR1K_OPERAND_RB :
628 errmsg = insert_normal (cd, fields->f_r3, 0, 0, 15, 5, 32, total_length, buffer);
629 break;
630 case OR1K_OPERAND_RBD32F :
631 {
632 {
633 FLD (f_r3) = ((FLD (f_rbd32)) & (31));
634 FLD (f_rboff_8_1) = ((((SI) (FLD (f_rbd32)) >> (5))) & (1));
635 }
636 errmsg = insert_normal (cd, fields->f_r3, 0, 0, 15, 5, 32, total_length, buffer);
637 if (errmsg)
638 break;
639 errmsg = insert_normal (cd, fields->f_rboff_8_1, 0, 0, 8, 1, 32, total_length, buffer);
640 if (errmsg)
641 break;
642 }
643 break;
644 case OR1K_OPERAND_RBDI :
645 {
646 {
647 FLD (f_r3) = ((FLD (f_rbd32)) & (31));
648 FLD (f_rboff_8_1) = ((((SI) (FLD (f_rbd32)) >> (5))) & (1));
649 }
650 errmsg = insert_normal (cd, fields->f_r3, 0, 0, 15, 5, 32, total_length, buffer);
651 if (errmsg)
652 break;
653 errmsg = insert_normal (cd, fields->f_rboff_8_1, 0, 0, 8, 1, 32, total_length, buffer);
654 if (errmsg)
655 break;
656 }
657 break;
658 case OR1K_OPERAND_RBSF :
659 errmsg = insert_normal (cd, fields->f_r3, 0, 0, 15, 5, 32, total_length, buffer);
660 break;
661 case OR1K_OPERAND_RD :
662 errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
663 break;
664 case OR1K_OPERAND_RDD32F :
665 {
666 {
667 FLD (f_r1) = ((FLD (f_rdd32)) & (31));
668 FLD (f_rdoff_10_1) = ((((SI) (FLD (f_rdd32)) >> (5))) & (1));
669 }
670 errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
671 if (errmsg)
672 break;
673 errmsg = insert_normal (cd, fields->f_rdoff_10_1, 0, 0, 10, 1, 32, total_length, buffer);
674 if (errmsg)
675 break;
676 }
677 break;
678 case OR1K_OPERAND_RDDI :
679 {
680 {
681 FLD (f_r1) = ((FLD (f_rdd32)) & (31));
682 FLD (f_rdoff_10_1) = ((((SI) (FLD (f_rdd32)) >> (5))) & (1));
683 }
684 errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
685 if (errmsg)
686 break;
687 errmsg = insert_normal (cd, fields->f_rdoff_10_1, 0, 0, 10, 1, 32, total_length, buffer);
688 if (errmsg)
689 break;
690 }
691 break;
692 case OR1K_OPERAND_RDSF :
693 errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
694 break;
695 case OR1K_OPERAND_SIMM16 :
696 errmsg = insert_normal (cd, fields->f_simm16, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_SIGN_OPT), 0, 15, 16, 32, total_length, buffer);
697 break;
698 case OR1K_OPERAND_SIMM16_SPLIT :
699 {
700 {
701 FLD (f_imm16_25_5) = ((((INT) (FLD (f_simm16_split)) >> (11))) & (31));
702 FLD (f_imm16_10_11) = ((FLD (f_simm16_split)) & (2047));
703 }
704 errmsg = insert_normal (cd, fields->f_imm16_25_5, 0, 0, 25, 5, 32, total_length, buffer);
705 if (errmsg)
706 break;
707 errmsg = insert_normal (cd, fields->f_imm16_10_11, 0, 0, 10, 11, 32, total_length, buffer);
708 if (errmsg)
709 break;
710 }
711 break;
712 case OR1K_OPERAND_UIMM16 :
713 errmsg = insert_normal (cd, fields->f_uimm16, 0, 0, 15, 16, 32, total_length, buffer);
714 break;
715 case OR1K_OPERAND_UIMM16_SPLIT :
716 {
717 {
718 FLD (f_imm16_25_5) = ((((UINT) (FLD (f_uimm16_split)) >> (11))) & (31));
719 FLD (f_imm16_10_11) = ((FLD (f_uimm16_split)) & (2047));
720 }
721 errmsg = insert_normal (cd, fields->f_imm16_25_5, 0, 0, 25, 5, 32, total_length, buffer);
722 if (errmsg)
723 break;
724 errmsg = insert_normal (cd, fields->f_imm16_10_11, 0, 0, 10, 11, 32, total_length, buffer);
725 if (errmsg)
726 break;
727 }
728 break;
729 case OR1K_OPERAND_UIMM6 :
730 errmsg = insert_normal (cd, fields->f_uimm6, 0, 0, 5, 6, 32, total_length, buffer);
731 break;
732
733 default :
734 /* xgettext:c-format */
735 opcodes_error_handler
736 (_("internal error: unrecognized field %d while building insn"),
737 opindex);
738 abort ();
739 }
740
741 return errmsg;
742 }
743
744 int or1k_cgen_extract_operand
745 (CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
746
747 /* Main entry point for operand extraction.
748 The result is <= 0 for error, >0 for success.
749 ??? Actual values aren't well defined right now.
750
751 This function is basically just a big switch statement. Earlier versions
752 used tables to look up the function to use, but
753 - if the table contains both assembler and disassembler functions then
754 the disassembler contains much of the assembler and vice-versa,
755 - there's a lot of inlining possibilities as things grow,
756 - using a switch statement avoids the function call overhead.
757
758 This function could be moved into `print_insn_normal', but keeping it
759 separate makes clear the interface between `print_insn_normal' and each of
760 the handlers. */
761
762 int
763 or1k_cgen_extract_operand (CGEN_CPU_DESC cd,
764 int opindex,
765 CGEN_EXTRACT_INFO *ex_info,
766 CGEN_INSN_INT insn_value,
767 CGEN_FIELDS * fields,
768 bfd_vma pc)
769 {
770 /* Assume success (for those operands that are nops). */
771 int length = 1;
772 unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
773
774 switch (opindex)
775 {
776 case OR1K_OPERAND_DISP21 :
777 {
778 long value;
779 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_ABS_ADDR), 0, 20, 21, 32, total_length, pc, & value);
780 value = ((((value) + (((SI) (pc) >> (13))))) * (8192));
781 fields->f_disp21 = value;
782 }
783 break;
784 case OR1K_OPERAND_DISP26 :
785 {
786 long value;
787 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 25, 26, 32, total_length, pc, & value);
788 value = ((((value) * (4))) + (pc));
789 fields->f_disp26 = value;
790 }
791 break;
792 case OR1K_OPERAND_RA :
793 length = extract_normal (cd, ex_info, insn_value, 0, 0, 20, 5, 32, total_length, pc, & fields->f_r2);
794 break;
795 case OR1K_OPERAND_RAD32F :
796 {
797 length = extract_normal (cd, ex_info, insn_value, 0, 0, 20, 5, 32, total_length, pc, & fields->f_r2);
798 if (length <= 0) break;
799 length = extract_normal (cd, ex_info, insn_value, 0, 0, 9, 1, 32, total_length, pc, & fields->f_raoff_9_1);
800 if (length <= 0) break;
801 FLD (f_rad32) = ((FLD (f_r2)) | (((FLD (f_raoff_9_1)) << (5))));
802 }
803 break;
804 case OR1K_OPERAND_RADI :
805 {
806 length = extract_normal (cd, ex_info, insn_value, 0, 0, 20, 5, 32, total_length, pc, & fields->f_r2);
807 if (length <= 0) break;
808 length = extract_normal (cd, ex_info, insn_value, 0, 0, 9, 1, 32, total_length, pc, & fields->f_raoff_9_1);
809 if (length <= 0) break;
810 FLD (f_rad32) = ((FLD (f_r2)) | (((FLD (f_raoff_9_1)) << (5))));
811 }
812 break;
813 case OR1K_OPERAND_RASF :
814 length = extract_normal (cd, ex_info, insn_value, 0, 0, 20, 5, 32, total_length, pc, & fields->f_r2);
815 break;
816 case OR1K_OPERAND_RB :
817 length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 5, 32, total_length, pc, & fields->f_r3);
818 break;
819 case OR1K_OPERAND_RBD32F :
820 {
821 length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 5, 32, total_length, pc, & fields->f_r3);
822 if (length <= 0) break;
823 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 1, 32, total_length, pc, & fields->f_rboff_8_1);
824 if (length <= 0) break;
825 FLD (f_rbd32) = ((FLD (f_r3)) | (((FLD (f_rboff_8_1)) << (5))));
826 }
827 break;
828 case OR1K_OPERAND_RBDI :
829 {
830 length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 5, 32, total_length, pc, & fields->f_r3);
831 if (length <= 0) break;
832 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 1, 32, total_length, pc, & fields->f_rboff_8_1);
833 if (length <= 0) break;
834 FLD (f_rbd32) = ((FLD (f_r3)) | (((FLD (f_rboff_8_1)) << (5))));
835 }
836 break;
837 case OR1K_OPERAND_RBSF :
838 length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 5, 32, total_length, pc, & fields->f_r3);
839 break;
840 case OR1K_OPERAND_RD :
841 length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
842 break;
843 case OR1K_OPERAND_RDD32F :
844 {
845 length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
846 if (length <= 0) break;
847 length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 1, 32, total_length, pc, & fields->f_rdoff_10_1);
848 if (length <= 0) break;
849 FLD (f_rdd32) = ((FLD (f_r1)) | (((FLD (f_rdoff_10_1)) << (5))));
850 }
851 break;
852 case OR1K_OPERAND_RDDI :
853 {
854 length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
855 if (length <= 0) break;
856 length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 1, 32, total_length, pc, & fields->f_rdoff_10_1);
857 if (length <= 0) break;
858 FLD (f_rdd32) = ((FLD (f_r1)) | (((FLD (f_rdoff_10_1)) << (5))));
859 }
860 break;
861 case OR1K_OPERAND_RDSF :
862 length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
863 break;
864 case OR1K_OPERAND_SIMM16 :
865 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_SIGN_OPT), 0, 15, 16, 32, total_length, pc, & fields->f_simm16);
866 break;
867 case OR1K_OPERAND_SIMM16_SPLIT :
868 {
869 length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_imm16_25_5);
870 if (length <= 0) break;
871 length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 11, 32, total_length, pc, & fields->f_imm16_10_11);
872 if (length <= 0) break;
873 FLD (f_simm16_split) = ((HI) (UINT) (((((FLD (f_imm16_25_5)) << (11))) | (FLD (f_imm16_10_11)))));
874 }
875 break;
876 case OR1K_OPERAND_UIMM16 :
877 length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 16, 32, total_length, pc, & fields->f_uimm16);
878 break;
879 case OR1K_OPERAND_UIMM16_SPLIT :
880 {
881 length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_imm16_25_5);
882 if (length <= 0) break;
883 length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 11, 32, total_length, pc, & fields->f_imm16_10_11);
884 if (length <= 0) break;
885 FLD (f_uimm16_split) = ((UHI) (UINT) (((((FLD (f_imm16_25_5)) << (11))) | (FLD (f_imm16_10_11)))));
886 }
887 break;
888 case OR1K_OPERAND_UIMM6 :
889 length = extract_normal (cd, ex_info, insn_value, 0, 0, 5, 6, 32, total_length, pc, & fields->f_uimm6);
890 break;
891
892 default :
893 /* xgettext:c-format */
894 opcodes_error_handler
895 (_("internal error: unrecognized field %d while decoding insn"),
896 opindex);
897 abort ();
898 }
899
900 return length;
901 }
902
903 cgen_insert_fn * const or1k_cgen_insert_handlers[] =
904 {
905 insert_insn_normal,
906 };
907
908 cgen_extract_fn * const or1k_cgen_extract_handlers[] =
909 {
910 extract_insn_normal,
911 };
912
913 int or1k_cgen_get_int_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
914 bfd_vma or1k_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
915
916 /* Getting values from cgen_fields is handled by a collection of functions.
917 They are distinguished by the type of the VALUE argument they return.
918 TODO: floating point, inlining support, remove cases where result type
919 not appropriate. */
920
921 int
922 or1k_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
923 int opindex,
924 const CGEN_FIELDS * fields)
925 {
926 int value;
927
928 switch (opindex)
929 {
930 case OR1K_OPERAND_DISP21 :
931 value = fields->f_disp21;
932 break;
933 case OR1K_OPERAND_DISP26 :
934 value = fields->f_disp26;
935 break;
936 case OR1K_OPERAND_RA :
937 value = fields->f_r2;
938 break;
939 case OR1K_OPERAND_RAD32F :
940 value = fields->f_rad32;
941 break;
942 case OR1K_OPERAND_RADI :
943 value = fields->f_rad32;
944 break;
945 case OR1K_OPERAND_RASF :
946 value = fields->f_r2;
947 break;
948 case OR1K_OPERAND_RB :
949 value = fields->f_r3;
950 break;
951 case OR1K_OPERAND_RBD32F :
952 value = fields->f_rbd32;
953 break;
954 case OR1K_OPERAND_RBDI :
955 value = fields->f_rbd32;
956 break;
957 case OR1K_OPERAND_RBSF :
958 value = fields->f_r3;
959 break;
960 case OR1K_OPERAND_RD :
961 value = fields->f_r1;
962 break;
963 case OR1K_OPERAND_RDD32F :
964 value = fields->f_rdd32;
965 break;
966 case OR1K_OPERAND_RDDI :
967 value = fields->f_rdd32;
968 break;
969 case OR1K_OPERAND_RDSF :
970 value = fields->f_r1;
971 break;
972 case OR1K_OPERAND_SIMM16 :
973 value = fields->f_simm16;
974 break;
975 case OR1K_OPERAND_SIMM16_SPLIT :
976 value = fields->f_simm16_split;
977 break;
978 case OR1K_OPERAND_UIMM16 :
979 value = fields->f_uimm16;
980 break;
981 case OR1K_OPERAND_UIMM16_SPLIT :
982 value = fields->f_uimm16_split;
983 break;
984 case OR1K_OPERAND_UIMM6 :
985 value = fields->f_uimm6;
986 break;
987
988 default :
989 /* xgettext:c-format */
990 opcodes_error_handler
991 (_("internal error: unrecognized field %d while getting int operand"),
992 opindex);
993 abort ();
994 }
995
996 return value;
997 }
998
999 bfd_vma
1000 or1k_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1001 int opindex,
1002 const CGEN_FIELDS * fields)
1003 {
1004 bfd_vma value;
1005
1006 switch (opindex)
1007 {
1008 case OR1K_OPERAND_DISP21 :
1009 value = fields->f_disp21;
1010 break;
1011 case OR1K_OPERAND_DISP26 :
1012 value = fields->f_disp26;
1013 break;
1014 case OR1K_OPERAND_RA :
1015 value = fields->f_r2;
1016 break;
1017 case OR1K_OPERAND_RAD32F :
1018 value = fields->f_rad32;
1019 break;
1020 case OR1K_OPERAND_RADI :
1021 value = fields->f_rad32;
1022 break;
1023 case OR1K_OPERAND_RASF :
1024 value = fields->f_r2;
1025 break;
1026 case OR1K_OPERAND_RB :
1027 value = fields->f_r3;
1028 break;
1029 case OR1K_OPERAND_RBD32F :
1030 value = fields->f_rbd32;
1031 break;
1032 case OR1K_OPERAND_RBDI :
1033 value = fields->f_rbd32;
1034 break;
1035 case OR1K_OPERAND_RBSF :
1036 value = fields->f_r3;
1037 break;
1038 case OR1K_OPERAND_RD :
1039 value = fields->f_r1;
1040 break;
1041 case OR1K_OPERAND_RDD32F :
1042 value = fields->f_rdd32;
1043 break;
1044 case OR1K_OPERAND_RDDI :
1045 value = fields->f_rdd32;
1046 break;
1047 case OR1K_OPERAND_RDSF :
1048 value = fields->f_r1;
1049 break;
1050 case OR1K_OPERAND_SIMM16 :
1051 value = fields->f_simm16;
1052 break;
1053 case OR1K_OPERAND_SIMM16_SPLIT :
1054 value = fields->f_simm16_split;
1055 break;
1056 case OR1K_OPERAND_UIMM16 :
1057 value = fields->f_uimm16;
1058 break;
1059 case OR1K_OPERAND_UIMM16_SPLIT :
1060 value = fields->f_uimm16_split;
1061 break;
1062 case OR1K_OPERAND_UIMM6 :
1063 value = fields->f_uimm6;
1064 break;
1065
1066 default :
1067 /* xgettext:c-format */
1068 opcodes_error_handler
1069 (_("internal error: unrecognized field %d while getting vma operand"),
1070 opindex);
1071 abort ();
1072 }
1073
1074 return value;
1075 }
1076
1077 void or1k_cgen_set_int_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, int);
1078 void or1k_cgen_set_vma_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma);
1079
1080 /* Stuffing values in cgen_fields is handled by a collection of functions.
1081 They are distinguished by the type of the VALUE argument they accept.
1082 TODO: floating point, inlining support, remove cases where argument type
1083 not appropriate. */
1084
1085 void
1086 or1k_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1087 int opindex,
1088 CGEN_FIELDS * fields,
1089 int value)
1090 {
1091 switch (opindex)
1092 {
1093 case OR1K_OPERAND_DISP21 :
1094 fields->f_disp21 = value;
1095 break;
1096 case OR1K_OPERAND_DISP26 :
1097 fields->f_disp26 = value;
1098 break;
1099 case OR1K_OPERAND_RA :
1100 fields->f_r2 = value;
1101 break;
1102 case OR1K_OPERAND_RAD32F :
1103 fields->f_rad32 = value;
1104 break;
1105 case OR1K_OPERAND_RADI :
1106 fields->f_rad32 = value;
1107 break;
1108 case OR1K_OPERAND_RASF :
1109 fields->f_r2 = value;
1110 break;
1111 case OR1K_OPERAND_RB :
1112 fields->f_r3 = value;
1113 break;
1114 case OR1K_OPERAND_RBD32F :
1115 fields->f_rbd32 = value;
1116 break;
1117 case OR1K_OPERAND_RBDI :
1118 fields->f_rbd32 = value;
1119 break;
1120 case OR1K_OPERAND_RBSF :
1121 fields->f_r3 = value;
1122 break;
1123 case OR1K_OPERAND_RD :
1124 fields->f_r1 = value;
1125 break;
1126 case OR1K_OPERAND_RDD32F :
1127 fields->f_rdd32 = value;
1128 break;
1129 case OR1K_OPERAND_RDDI :
1130 fields->f_rdd32 = value;
1131 break;
1132 case OR1K_OPERAND_RDSF :
1133 fields->f_r1 = value;
1134 break;
1135 case OR1K_OPERAND_SIMM16 :
1136 fields->f_simm16 = value;
1137 break;
1138 case OR1K_OPERAND_SIMM16_SPLIT :
1139 fields->f_simm16_split = value;
1140 break;
1141 case OR1K_OPERAND_UIMM16 :
1142 fields->f_uimm16 = value;
1143 break;
1144 case OR1K_OPERAND_UIMM16_SPLIT :
1145 fields->f_uimm16_split = value;
1146 break;
1147 case OR1K_OPERAND_UIMM6 :
1148 fields->f_uimm6 = value;
1149 break;
1150
1151 default :
1152 /* xgettext:c-format */
1153 opcodes_error_handler
1154 (_("internal error: unrecognized field %d while setting int operand"),
1155 opindex);
1156 abort ();
1157 }
1158 }
1159
1160 void
1161 or1k_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1162 int opindex,
1163 CGEN_FIELDS * fields,
1164 bfd_vma value)
1165 {
1166 switch (opindex)
1167 {
1168 case OR1K_OPERAND_DISP21 :
1169 fields->f_disp21 = value;
1170 break;
1171 case OR1K_OPERAND_DISP26 :
1172 fields->f_disp26 = value;
1173 break;
1174 case OR1K_OPERAND_RA :
1175 fields->f_r2 = value;
1176 break;
1177 case OR1K_OPERAND_RAD32F :
1178 fields->f_rad32 = value;
1179 break;
1180 case OR1K_OPERAND_RADI :
1181 fields->f_rad32 = value;
1182 break;
1183 case OR1K_OPERAND_RASF :
1184 fields->f_r2 = value;
1185 break;
1186 case OR1K_OPERAND_RB :
1187 fields->f_r3 = value;
1188 break;
1189 case OR1K_OPERAND_RBD32F :
1190 fields->f_rbd32 = value;
1191 break;
1192 case OR1K_OPERAND_RBDI :
1193 fields->f_rbd32 = value;
1194 break;
1195 case OR1K_OPERAND_RBSF :
1196 fields->f_r3 = value;
1197 break;
1198 case OR1K_OPERAND_RD :
1199 fields->f_r1 = value;
1200 break;
1201 case OR1K_OPERAND_RDD32F :
1202 fields->f_rdd32 = value;
1203 break;
1204 case OR1K_OPERAND_RDDI :
1205 fields->f_rdd32 = value;
1206 break;
1207 case OR1K_OPERAND_RDSF :
1208 fields->f_r1 = value;
1209 break;
1210 case OR1K_OPERAND_SIMM16 :
1211 fields->f_simm16 = value;
1212 break;
1213 case OR1K_OPERAND_SIMM16_SPLIT :
1214 fields->f_simm16_split = value;
1215 break;
1216 case OR1K_OPERAND_UIMM16 :
1217 fields->f_uimm16 = value;
1218 break;
1219 case OR1K_OPERAND_UIMM16_SPLIT :
1220 fields->f_uimm16_split = value;
1221 break;
1222 case OR1K_OPERAND_UIMM6 :
1223 fields->f_uimm6 = value;
1224 break;
1225
1226 default :
1227 /* xgettext:c-format */
1228 opcodes_error_handler
1229 (_("internal error: unrecognized field %d while setting vma operand"),
1230 opindex);
1231 abort ();
1232 }
1233 }
1234
1235 /* Function to call before using the instruction builder tables. */
1236
1237 void
1238 or1k_cgen_init_ibld_table (CGEN_CPU_DESC cd)
1239 {
1240 cd->insert_handlers = & or1k_cgen_insert_handlers[0];
1241 cd->extract_handlers = & or1k_cgen_extract_handlers[0];
1242
1243 cd->insert_operand = or1k_cgen_insert_operand;
1244 cd->extract_operand = or1k_cgen_extract_operand;
1245
1246 cd->get_int_operand = or1k_cgen_get_int_operand;
1247 cd->set_int_operand = or1k_cgen_set_int_operand;
1248 cd->get_vma_operand = or1k_cgen_get_vma_operand;
1249 cd->set_vma_operand = or1k_cgen_set_vma_operand;
1250 }
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