ddebc32428ec0483c3eeefc168910db133670bc2
[deliverable/binutils-gdb.git] / opcodes / m32r-ibld.c
1 /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
2 /* Instruction building/extraction support for m32r. -*- 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 "m32r-desc.h"
35 #include "m32r-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 * m32r_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 m32r_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 M32R_OPERAND_ACC :
580 errmsg = insert_normal (cd, fields->f_acc, 0, 0, 8, 1, 32, total_length, buffer);
581 break;
582 case M32R_OPERAND_ACCD :
583 errmsg = insert_normal (cd, fields->f_accd, 0, 0, 4, 2, 32, total_length, buffer);
584 break;
585 case M32R_OPERAND_ACCS :
586 errmsg = insert_normal (cd, fields->f_accs, 0, 0, 12, 2, 32, total_length, buffer);
587 break;
588 case M32R_OPERAND_DCR :
589 errmsg = insert_normal (cd, fields->f_r1, 0, 0, 4, 4, 32, total_length, buffer);
590 break;
591 case M32R_OPERAND_DISP16 :
592 {
593 long value = fields->f_disp16;
594 value = ((SI) (((value) - (pc))) >> (2));
595 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_RELOC)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 16, 16, 32, total_length, buffer);
596 }
597 break;
598 case M32R_OPERAND_DISP24 :
599 {
600 long value = fields->f_disp24;
601 value = ((SI) (((value) - (pc))) >> (2));
602 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_RELOC)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 24, 32, total_length, buffer);
603 }
604 break;
605 case M32R_OPERAND_DISP8 :
606 {
607 long value = fields->f_disp8;
608 value = ((SI) (((value) - (((pc) & (-4))))) >> (2));
609 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_RELOC)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, buffer);
610 }
611 break;
612 case M32R_OPERAND_DR :
613 errmsg = insert_normal (cd, fields->f_r1, 0, 0, 4, 4, 32, total_length, buffer);
614 break;
615 case M32R_OPERAND_HASH :
616 break;
617 case M32R_OPERAND_HI16 :
618 errmsg = insert_normal (cd, fields->f_hi16, 0|(1<<CGEN_IFLD_SIGN_OPT), 0, 16, 16, 32, total_length, buffer);
619 break;
620 case M32R_OPERAND_IMM1 :
621 {
622 long value = fields->f_imm1;
623 value = ((value) - (1));
624 errmsg = insert_normal (cd, value, 0, 0, 15, 1, 32, total_length, buffer);
625 }
626 break;
627 case M32R_OPERAND_SCR :
628 errmsg = insert_normal (cd, fields->f_r2, 0, 0, 12, 4, 32, total_length, buffer);
629 break;
630 case M32R_OPERAND_SIMM16 :
631 errmsg = insert_normal (cd, fields->f_simm16, 0|(1<<CGEN_IFLD_SIGNED), 0, 16, 16, 32, total_length, buffer);
632 break;
633 case M32R_OPERAND_SIMM8 :
634 errmsg = insert_normal (cd, fields->f_simm8, 0|(1<<CGEN_IFLD_SIGNED), 0, 8, 8, 32, total_length, buffer);
635 break;
636 case M32R_OPERAND_SLO16 :
637 errmsg = insert_normal (cd, fields->f_simm16, 0|(1<<CGEN_IFLD_SIGNED), 0, 16, 16, 32, total_length, buffer);
638 break;
639 case M32R_OPERAND_SR :
640 errmsg = insert_normal (cd, fields->f_r2, 0, 0, 12, 4, 32, total_length, buffer);
641 break;
642 case M32R_OPERAND_SRC1 :
643 errmsg = insert_normal (cd, fields->f_r1, 0, 0, 4, 4, 32, total_length, buffer);
644 break;
645 case M32R_OPERAND_SRC2 :
646 errmsg = insert_normal (cd, fields->f_r2, 0, 0, 12, 4, 32, total_length, buffer);
647 break;
648 case M32R_OPERAND_UIMM16 :
649 errmsg = insert_normal (cd, fields->f_uimm16, 0, 0, 16, 16, 32, total_length, buffer);
650 break;
651 case M32R_OPERAND_UIMM24 :
652 errmsg = insert_normal (cd, fields->f_uimm24, 0|(1<<CGEN_IFLD_RELOC)|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 24, 32, total_length, buffer);
653 break;
654 case M32R_OPERAND_UIMM3 :
655 errmsg = insert_normal (cd, fields->f_uimm3, 0, 0, 5, 3, 32, total_length, buffer);
656 break;
657 case M32R_OPERAND_UIMM4 :
658 errmsg = insert_normal (cd, fields->f_uimm4, 0, 0, 12, 4, 32, total_length, buffer);
659 break;
660 case M32R_OPERAND_UIMM5 :
661 errmsg = insert_normal (cd, fields->f_uimm5, 0, 0, 11, 5, 32, total_length, buffer);
662 break;
663 case M32R_OPERAND_UIMM8 :
664 errmsg = insert_normal (cd, fields->f_uimm8, 0, 0, 8, 8, 32, total_length, buffer);
665 break;
666 case M32R_OPERAND_ULO16 :
667 errmsg = insert_normal (cd, fields->f_uimm16, 0, 0, 16, 16, 32, total_length, buffer);
668 break;
669
670 default :
671 /* xgettext:c-format */
672 opcodes_error_handler
673 (_("internal error: unrecognized field %d while building insn"),
674 opindex);
675 abort ();
676 }
677
678 return errmsg;
679 }
680
681 int m32r_cgen_extract_operand
682 (CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
683
684 /* Main entry point for operand extraction.
685 The result is <= 0 for error, >0 for success.
686 ??? Actual values aren't well defined right now.
687
688 This function is basically just a big switch statement. Earlier versions
689 used tables to look up the function to use, but
690 - if the table contains both assembler and disassembler functions then
691 the disassembler contains much of the assembler and vice-versa,
692 - there's a lot of inlining possibilities as things grow,
693 - using a switch statement avoids the function call overhead.
694
695 This function could be moved into `print_insn_normal', but keeping it
696 separate makes clear the interface between `print_insn_normal' and each of
697 the handlers. */
698
699 int
700 m32r_cgen_extract_operand (CGEN_CPU_DESC cd,
701 int opindex,
702 CGEN_EXTRACT_INFO *ex_info,
703 CGEN_INSN_INT insn_value,
704 CGEN_FIELDS * fields,
705 bfd_vma pc)
706 {
707 /* Assume success (for those operands that are nops). */
708 int length = 1;
709 unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
710
711 switch (opindex)
712 {
713 case M32R_OPERAND_ACC :
714 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 1, 32, total_length, pc, & fields->f_acc);
715 break;
716 case M32R_OPERAND_ACCD :
717 length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 2, 32, total_length, pc, & fields->f_accd);
718 break;
719 case M32R_OPERAND_ACCS :
720 length = extract_normal (cd, ex_info, insn_value, 0, 0, 12, 2, 32, total_length, pc, & fields->f_accs);
721 break;
722 case M32R_OPERAND_DCR :
723 length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 4, 32, total_length, pc, & fields->f_r1);
724 break;
725 case M32R_OPERAND_DISP16 :
726 {
727 long value;
728 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_RELOC)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 16, 16, 32, total_length, pc, & value);
729 value = ((((value) * (4))) + (pc));
730 fields->f_disp16 = value;
731 }
732 break;
733 case M32R_OPERAND_DISP24 :
734 {
735 long value;
736 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_RELOC)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 24, 32, total_length, pc, & value);
737 value = ((((value) * (4))) + (pc));
738 fields->f_disp24 = value;
739 }
740 break;
741 case M32R_OPERAND_DISP8 :
742 {
743 long value;
744 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_RELOC)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, pc, & value);
745 value = ((((value) * (4))) + (((pc) & (-4))));
746 fields->f_disp8 = value;
747 }
748 break;
749 case M32R_OPERAND_DR :
750 length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 4, 32, total_length, pc, & fields->f_r1);
751 break;
752 case M32R_OPERAND_HASH :
753 break;
754 case M32R_OPERAND_HI16 :
755 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGN_OPT), 0, 16, 16, 32, total_length, pc, & fields->f_hi16);
756 break;
757 case M32R_OPERAND_IMM1 :
758 {
759 long value;
760 length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 1, 32, total_length, pc, & value);
761 value = ((value) + (1));
762 fields->f_imm1 = value;
763 }
764 break;
765 case M32R_OPERAND_SCR :
766 length = extract_normal (cd, ex_info, insn_value, 0, 0, 12, 4, 32, total_length, pc, & fields->f_r2);
767 break;
768 case M32R_OPERAND_SIMM16 :
769 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 16, 16, 32, total_length, pc, & fields->f_simm16);
770 break;
771 case M32R_OPERAND_SIMM8 :
772 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 8, 8, 32, total_length, pc, & fields->f_simm8);
773 break;
774 case M32R_OPERAND_SLO16 :
775 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 16, 16, 32, total_length, pc, & fields->f_simm16);
776 break;
777 case M32R_OPERAND_SR :
778 length = extract_normal (cd, ex_info, insn_value, 0, 0, 12, 4, 32, total_length, pc, & fields->f_r2);
779 break;
780 case M32R_OPERAND_SRC1 :
781 length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 4, 32, total_length, pc, & fields->f_r1);
782 break;
783 case M32R_OPERAND_SRC2 :
784 length = extract_normal (cd, ex_info, insn_value, 0, 0, 12, 4, 32, total_length, pc, & fields->f_r2);
785 break;
786 case M32R_OPERAND_UIMM16 :
787 length = extract_normal (cd, ex_info, insn_value, 0, 0, 16, 16, 32, total_length, pc, & fields->f_uimm16);
788 break;
789 case M32R_OPERAND_UIMM24 :
790 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_RELOC)|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 24, 32, total_length, pc, & fields->f_uimm24);
791 break;
792 case M32R_OPERAND_UIMM3 :
793 length = extract_normal (cd, ex_info, insn_value, 0, 0, 5, 3, 32, total_length, pc, & fields->f_uimm3);
794 break;
795 case M32R_OPERAND_UIMM4 :
796 length = extract_normal (cd, ex_info, insn_value, 0, 0, 12, 4, 32, total_length, pc, & fields->f_uimm4);
797 break;
798 case M32R_OPERAND_UIMM5 :
799 length = extract_normal (cd, ex_info, insn_value, 0, 0, 11, 5, 32, total_length, pc, & fields->f_uimm5);
800 break;
801 case M32R_OPERAND_UIMM8 :
802 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_uimm8);
803 break;
804 case M32R_OPERAND_ULO16 :
805 length = extract_normal (cd, ex_info, insn_value, 0, 0, 16, 16, 32, total_length, pc, & fields->f_uimm16);
806 break;
807
808 default :
809 /* xgettext:c-format */
810 opcodes_error_handler
811 (_("internal error: unrecognized field %d while decoding insn"),
812 opindex);
813 abort ();
814 }
815
816 return length;
817 }
818
819 cgen_insert_fn * const m32r_cgen_insert_handlers[] =
820 {
821 insert_insn_normal,
822 };
823
824 cgen_extract_fn * const m32r_cgen_extract_handlers[] =
825 {
826 extract_insn_normal,
827 };
828
829 int m32r_cgen_get_int_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
830 bfd_vma m32r_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
831
832 /* Getting values from cgen_fields is handled by a collection of functions.
833 They are distinguished by the type of the VALUE argument they return.
834 TODO: floating point, inlining support, remove cases where result type
835 not appropriate. */
836
837 int
838 m32r_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
839 int opindex,
840 const CGEN_FIELDS * fields)
841 {
842 int value;
843
844 switch (opindex)
845 {
846 case M32R_OPERAND_ACC :
847 value = fields->f_acc;
848 break;
849 case M32R_OPERAND_ACCD :
850 value = fields->f_accd;
851 break;
852 case M32R_OPERAND_ACCS :
853 value = fields->f_accs;
854 break;
855 case M32R_OPERAND_DCR :
856 value = fields->f_r1;
857 break;
858 case M32R_OPERAND_DISP16 :
859 value = fields->f_disp16;
860 break;
861 case M32R_OPERAND_DISP24 :
862 value = fields->f_disp24;
863 break;
864 case M32R_OPERAND_DISP8 :
865 value = fields->f_disp8;
866 break;
867 case M32R_OPERAND_DR :
868 value = fields->f_r1;
869 break;
870 case M32R_OPERAND_HASH :
871 value = 0;
872 break;
873 case M32R_OPERAND_HI16 :
874 value = fields->f_hi16;
875 break;
876 case M32R_OPERAND_IMM1 :
877 value = fields->f_imm1;
878 break;
879 case M32R_OPERAND_SCR :
880 value = fields->f_r2;
881 break;
882 case M32R_OPERAND_SIMM16 :
883 value = fields->f_simm16;
884 break;
885 case M32R_OPERAND_SIMM8 :
886 value = fields->f_simm8;
887 break;
888 case M32R_OPERAND_SLO16 :
889 value = fields->f_simm16;
890 break;
891 case M32R_OPERAND_SR :
892 value = fields->f_r2;
893 break;
894 case M32R_OPERAND_SRC1 :
895 value = fields->f_r1;
896 break;
897 case M32R_OPERAND_SRC2 :
898 value = fields->f_r2;
899 break;
900 case M32R_OPERAND_UIMM16 :
901 value = fields->f_uimm16;
902 break;
903 case M32R_OPERAND_UIMM24 :
904 value = fields->f_uimm24;
905 break;
906 case M32R_OPERAND_UIMM3 :
907 value = fields->f_uimm3;
908 break;
909 case M32R_OPERAND_UIMM4 :
910 value = fields->f_uimm4;
911 break;
912 case M32R_OPERAND_UIMM5 :
913 value = fields->f_uimm5;
914 break;
915 case M32R_OPERAND_UIMM8 :
916 value = fields->f_uimm8;
917 break;
918 case M32R_OPERAND_ULO16 :
919 value = fields->f_uimm16;
920 break;
921
922 default :
923 /* xgettext:c-format */
924 opcodes_error_handler
925 (_("internal error: unrecognized field %d while getting int operand"),
926 opindex);
927 abort ();
928 }
929
930 return value;
931 }
932
933 bfd_vma
934 m32r_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
935 int opindex,
936 const CGEN_FIELDS * fields)
937 {
938 bfd_vma value;
939
940 switch (opindex)
941 {
942 case M32R_OPERAND_ACC :
943 value = fields->f_acc;
944 break;
945 case M32R_OPERAND_ACCD :
946 value = fields->f_accd;
947 break;
948 case M32R_OPERAND_ACCS :
949 value = fields->f_accs;
950 break;
951 case M32R_OPERAND_DCR :
952 value = fields->f_r1;
953 break;
954 case M32R_OPERAND_DISP16 :
955 value = fields->f_disp16;
956 break;
957 case M32R_OPERAND_DISP24 :
958 value = fields->f_disp24;
959 break;
960 case M32R_OPERAND_DISP8 :
961 value = fields->f_disp8;
962 break;
963 case M32R_OPERAND_DR :
964 value = fields->f_r1;
965 break;
966 case M32R_OPERAND_HASH :
967 value = 0;
968 break;
969 case M32R_OPERAND_HI16 :
970 value = fields->f_hi16;
971 break;
972 case M32R_OPERAND_IMM1 :
973 value = fields->f_imm1;
974 break;
975 case M32R_OPERAND_SCR :
976 value = fields->f_r2;
977 break;
978 case M32R_OPERAND_SIMM16 :
979 value = fields->f_simm16;
980 break;
981 case M32R_OPERAND_SIMM8 :
982 value = fields->f_simm8;
983 break;
984 case M32R_OPERAND_SLO16 :
985 value = fields->f_simm16;
986 break;
987 case M32R_OPERAND_SR :
988 value = fields->f_r2;
989 break;
990 case M32R_OPERAND_SRC1 :
991 value = fields->f_r1;
992 break;
993 case M32R_OPERAND_SRC2 :
994 value = fields->f_r2;
995 break;
996 case M32R_OPERAND_UIMM16 :
997 value = fields->f_uimm16;
998 break;
999 case M32R_OPERAND_UIMM24 :
1000 value = fields->f_uimm24;
1001 break;
1002 case M32R_OPERAND_UIMM3 :
1003 value = fields->f_uimm3;
1004 break;
1005 case M32R_OPERAND_UIMM4 :
1006 value = fields->f_uimm4;
1007 break;
1008 case M32R_OPERAND_UIMM5 :
1009 value = fields->f_uimm5;
1010 break;
1011 case M32R_OPERAND_UIMM8 :
1012 value = fields->f_uimm8;
1013 break;
1014 case M32R_OPERAND_ULO16 :
1015 value = fields->f_uimm16;
1016 break;
1017
1018 default :
1019 /* xgettext:c-format */
1020 opcodes_error_handler
1021 (_("internal error: unrecognized field %d while getting vma operand"),
1022 opindex);
1023 abort ();
1024 }
1025
1026 return value;
1027 }
1028
1029 void m32r_cgen_set_int_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, int);
1030 void m32r_cgen_set_vma_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma);
1031
1032 /* Stuffing values in cgen_fields is handled by a collection of functions.
1033 They are distinguished by the type of the VALUE argument they accept.
1034 TODO: floating point, inlining support, remove cases where argument type
1035 not appropriate. */
1036
1037 void
1038 m32r_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1039 int opindex,
1040 CGEN_FIELDS * fields,
1041 int value)
1042 {
1043 switch (opindex)
1044 {
1045 case M32R_OPERAND_ACC :
1046 fields->f_acc = value;
1047 break;
1048 case M32R_OPERAND_ACCD :
1049 fields->f_accd = value;
1050 break;
1051 case M32R_OPERAND_ACCS :
1052 fields->f_accs = value;
1053 break;
1054 case M32R_OPERAND_DCR :
1055 fields->f_r1 = value;
1056 break;
1057 case M32R_OPERAND_DISP16 :
1058 fields->f_disp16 = value;
1059 break;
1060 case M32R_OPERAND_DISP24 :
1061 fields->f_disp24 = value;
1062 break;
1063 case M32R_OPERAND_DISP8 :
1064 fields->f_disp8 = value;
1065 break;
1066 case M32R_OPERAND_DR :
1067 fields->f_r1 = value;
1068 break;
1069 case M32R_OPERAND_HASH :
1070 break;
1071 case M32R_OPERAND_HI16 :
1072 fields->f_hi16 = value;
1073 break;
1074 case M32R_OPERAND_IMM1 :
1075 fields->f_imm1 = value;
1076 break;
1077 case M32R_OPERAND_SCR :
1078 fields->f_r2 = value;
1079 break;
1080 case M32R_OPERAND_SIMM16 :
1081 fields->f_simm16 = value;
1082 break;
1083 case M32R_OPERAND_SIMM8 :
1084 fields->f_simm8 = value;
1085 break;
1086 case M32R_OPERAND_SLO16 :
1087 fields->f_simm16 = value;
1088 break;
1089 case M32R_OPERAND_SR :
1090 fields->f_r2 = value;
1091 break;
1092 case M32R_OPERAND_SRC1 :
1093 fields->f_r1 = value;
1094 break;
1095 case M32R_OPERAND_SRC2 :
1096 fields->f_r2 = value;
1097 break;
1098 case M32R_OPERAND_UIMM16 :
1099 fields->f_uimm16 = value;
1100 break;
1101 case M32R_OPERAND_UIMM24 :
1102 fields->f_uimm24 = value;
1103 break;
1104 case M32R_OPERAND_UIMM3 :
1105 fields->f_uimm3 = value;
1106 break;
1107 case M32R_OPERAND_UIMM4 :
1108 fields->f_uimm4 = value;
1109 break;
1110 case M32R_OPERAND_UIMM5 :
1111 fields->f_uimm5 = value;
1112 break;
1113 case M32R_OPERAND_UIMM8 :
1114 fields->f_uimm8 = value;
1115 break;
1116 case M32R_OPERAND_ULO16 :
1117 fields->f_uimm16 = value;
1118 break;
1119
1120 default :
1121 /* xgettext:c-format */
1122 opcodes_error_handler
1123 (_("internal error: unrecognized field %d while setting int operand"),
1124 opindex);
1125 abort ();
1126 }
1127 }
1128
1129 void
1130 m32r_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1131 int opindex,
1132 CGEN_FIELDS * fields,
1133 bfd_vma value)
1134 {
1135 switch (opindex)
1136 {
1137 case M32R_OPERAND_ACC :
1138 fields->f_acc = value;
1139 break;
1140 case M32R_OPERAND_ACCD :
1141 fields->f_accd = value;
1142 break;
1143 case M32R_OPERAND_ACCS :
1144 fields->f_accs = value;
1145 break;
1146 case M32R_OPERAND_DCR :
1147 fields->f_r1 = value;
1148 break;
1149 case M32R_OPERAND_DISP16 :
1150 fields->f_disp16 = value;
1151 break;
1152 case M32R_OPERAND_DISP24 :
1153 fields->f_disp24 = value;
1154 break;
1155 case M32R_OPERAND_DISP8 :
1156 fields->f_disp8 = value;
1157 break;
1158 case M32R_OPERAND_DR :
1159 fields->f_r1 = value;
1160 break;
1161 case M32R_OPERAND_HASH :
1162 break;
1163 case M32R_OPERAND_HI16 :
1164 fields->f_hi16 = value;
1165 break;
1166 case M32R_OPERAND_IMM1 :
1167 fields->f_imm1 = value;
1168 break;
1169 case M32R_OPERAND_SCR :
1170 fields->f_r2 = value;
1171 break;
1172 case M32R_OPERAND_SIMM16 :
1173 fields->f_simm16 = value;
1174 break;
1175 case M32R_OPERAND_SIMM8 :
1176 fields->f_simm8 = value;
1177 break;
1178 case M32R_OPERAND_SLO16 :
1179 fields->f_simm16 = value;
1180 break;
1181 case M32R_OPERAND_SR :
1182 fields->f_r2 = value;
1183 break;
1184 case M32R_OPERAND_SRC1 :
1185 fields->f_r1 = value;
1186 break;
1187 case M32R_OPERAND_SRC2 :
1188 fields->f_r2 = value;
1189 break;
1190 case M32R_OPERAND_UIMM16 :
1191 fields->f_uimm16 = value;
1192 break;
1193 case M32R_OPERAND_UIMM24 :
1194 fields->f_uimm24 = value;
1195 break;
1196 case M32R_OPERAND_UIMM3 :
1197 fields->f_uimm3 = value;
1198 break;
1199 case M32R_OPERAND_UIMM4 :
1200 fields->f_uimm4 = value;
1201 break;
1202 case M32R_OPERAND_UIMM5 :
1203 fields->f_uimm5 = value;
1204 break;
1205 case M32R_OPERAND_UIMM8 :
1206 fields->f_uimm8 = value;
1207 break;
1208 case M32R_OPERAND_ULO16 :
1209 fields->f_uimm16 = value;
1210 break;
1211
1212 default :
1213 /* xgettext:c-format */
1214 opcodes_error_handler
1215 (_("internal error: unrecognized field %d while setting vma operand"),
1216 opindex);
1217 abort ();
1218 }
1219 }
1220
1221 /* Function to call before using the instruction builder tables. */
1222
1223 void
1224 m32r_cgen_init_ibld_table (CGEN_CPU_DESC cd)
1225 {
1226 cd->insert_handlers = & m32r_cgen_insert_handlers[0];
1227 cd->extract_handlers = & m32r_cgen_extract_handlers[0];
1228
1229 cd->insert_operand = m32r_cgen_insert_operand;
1230 cd->extract_operand = m32r_cgen_extract_operand;
1231
1232 cd->get_int_operand = m32r_cgen_get_int_operand;
1233 cd->set_int_operand = m32r_cgen_set_int_operand;
1234 cd->get_vma_operand = m32r_cgen_get_vma_operand;
1235 cd->set_vma_operand = m32r_cgen_set_vma_operand;
1236 }
This page took 0.06211 seconds and 4 git commands to generate.