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7b4ae824 JD |
1 | /* s12z-dis.c -- Freescale S12Z disassembly |
2 | Copyright (C) 2018 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of the GNU opcodes library. | |
5 | ||
6 | This library is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3, or (at your option) | |
9 | any later version. | |
10 | ||
11 | It is distributed in the hope that it will be useful, but WITHOUT | |
12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
13 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
14 | License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | #include "sysdep.h" | |
22 | #include <stdio.h> | |
23 | #include <stdint.h> | |
24 | #include <stdbool.h> | |
25 | #include <assert.h> | |
26 | ||
27 | #include "s12z.h" | |
28 | ||
29 | #include "bfd.h" | |
30 | #include "dis-asm.h" | |
31 | ||
32 | ||
33 | #include "disassemble.h" | |
34 | ||
35 | static int | |
36 | read_memory (bfd_vma memaddr, bfd_byte* buffer, int size, | |
37 | struct disassemble_info* info) | |
38 | { | |
39 | int status = (*info->read_memory_func) (memaddr, buffer, size, info); | |
40 | if (status != 0) | |
41 | { | |
42 | (*info->memory_error_func) (status, memaddr, info); | |
43 | return -1; | |
44 | } | |
45 | return 0; | |
46 | } | |
47 | ||
48 | typedef int (* insn_bytes_f) (bfd_vma memaddr, | |
49 | struct disassemble_info* info); | |
50 | ||
51 | typedef void (*operands_f) (bfd_vma memaddr, struct disassemble_info* info); | |
52 | ||
53 | enum OPR_MODE | |
54 | { | |
55 | OPR_IMMe4, | |
56 | OPR_REG, | |
57 | OPR_OFXYS, | |
58 | OPR_XY_PRE_INC, | |
59 | OPR_XY_POST_INC, | |
60 | OPR_XY_PRE_DEC, | |
61 | OPR_XY_POST_DEC, | |
62 | OPR_S_PRE_DEC, | |
63 | OPR_S_POST_INC, | |
64 | OPR_REG_DIRECT, | |
65 | OPR_REG_INDIRECT, | |
66 | OPR_IDX_DIRECT, | |
67 | OPR_IDX_INDIRECT, | |
68 | OPR_EXT1, | |
69 | OPR_IDX2_REG, | |
70 | OPR_IDX3_DIRECT, | |
71 | OPR_IDX3_INDIRECT, | |
72 | ||
73 | OPR_EXT18, | |
74 | OPR_IDX3_DIRECT_REG, | |
75 | OPR_EXT3_DIRECT, | |
76 | OPR_EXT3_INDIRECT | |
77 | }; | |
78 | ||
79 | struct opr_pb | |
80 | { | |
81 | uint8_t mask; | |
82 | uint8_t value; | |
83 | int n_operands; | |
84 | enum OPR_MODE mode; | |
85 | }; | |
86 | ||
87 | static const struct opr_pb opr_pb[] = { | |
88 | {0xF0, 0x70, 1, OPR_IMMe4}, | |
89 | {0xF8, 0xB8, 1, OPR_REG}, | |
90 | {0xC0, 0x40, 1, OPR_OFXYS}, | |
91 | {0xEF, 0xE3, 1, OPR_XY_PRE_INC}, | |
92 | {0xEF, 0xE7, 1, OPR_XY_POST_INC}, | |
93 | {0xEF, 0xC3, 1, OPR_XY_PRE_DEC}, | |
94 | {0xEF, 0xC7, 1, OPR_XY_POST_DEC}, | |
95 | {0xFF, 0xFB, 1, OPR_S_PRE_DEC}, | |
96 | {0xFF, 0xFF, 1, OPR_S_POST_INC}, | |
97 | {0xC8, 0x88, 1, OPR_REG_DIRECT}, | |
98 | {0xE8, 0xC8, 1, OPR_REG_INDIRECT}, | |
99 | ||
100 | {0xCE, 0xC0, 2, OPR_IDX_DIRECT}, | |
101 | {0xCE, 0xC4, 2, OPR_IDX_INDIRECT}, | |
102 | {0xC0, 0x00, 2, OPR_EXT1}, | |
103 | ||
104 | {0xC8, 0x80, 3, OPR_IDX2_REG}, | |
105 | {0xFA, 0xF8, 3, OPR_EXT18}, | |
106 | ||
107 | {0xCF, 0xC2, 4, OPR_IDX3_DIRECT}, | |
108 | {0xCF, 0xC6, 4, OPR_IDX3_INDIRECT}, | |
109 | ||
110 | {0xF8, 0xE8, 4, OPR_IDX3_DIRECT_REG}, | |
111 | {0xFF, 0xFA, 4, OPR_EXT3_DIRECT}, | |
112 | {0xFF, 0xFE, 4, OPR_EXT3_INDIRECT}, | |
113 | }; | |
114 | ||
115 | ||
116 | /* Return the number of bytes in a OPR operand, including the XB postbyte. | |
117 | It does not include any preceeding opcodes. */ | |
118 | static int | |
119 | opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info) | |
120 | { | |
121 | bfd_byte xb; | |
122 | int status = read_memory (memaddr, &xb, 1, info); | |
123 | if (status < 0) | |
124 | return status; | |
125 | ||
126 | size_t i; | |
127 | for (i = 0; i < sizeof (opr_pb) / sizeof (opr_pb[0]); ++i) | |
128 | { | |
129 | const struct opr_pb *pb = opr_pb + i; | |
130 | if ((xb & pb->mask) == pb->value) | |
131 | { | |
132 | return pb->n_operands; | |
133 | } | |
134 | } | |
135 | ||
136 | return 1; | |
137 | } | |
138 | ||
139 | static int | |
140 | opr_n_bytes_p1 (bfd_vma memaddr, struct disassemble_info* info) | |
141 | { | |
142 | return 1 + opr_n_bytes (memaddr, info); | |
143 | } | |
144 | ||
145 | static int | |
146 | opr_n_bytes2 (bfd_vma memaddr, struct disassemble_info* info) | |
147 | { | |
148 | int s = opr_n_bytes (memaddr, info); | |
149 | s += opr_n_bytes (memaddr + s, info); | |
150 | return s + 1; | |
151 | } | |
152 | ||
153 | enum BB_MODE | |
154 | { | |
155 | BB_REG_REG_REG, | |
156 | BB_REG_REG_IMM, | |
157 | BB_REG_OPR_REG, | |
158 | BB_OPR_REG_REG, | |
159 | BB_REG_OPR_IMM, | |
160 | BB_OPR_REG_IMM | |
161 | }; | |
162 | ||
163 | struct opr_bb | |
164 | { | |
165 | uint8_t mask; | |
166 | uint8_t value; | |
167 | int n_operands; | |
168 | bool opr; | |
169 | enum BB_MODE mode; | |
170 | }; | |
171 | ||
172 | static const struct opr_bb bb_modes[] = | |
173 | { | |
174 | {0x60, 0x00, 2, false, BB_REG_REG_REG}, | |
175 | {0x60, 0x20, 3, false, BB_REG_REG_IMM}, | |
176 | {0x70, 0x40, 2, true, BB_REG_OPR_REG}, | |
177 | {0x70, 0x50, 2, true, BB_OPR_REG_REG}, | |
178 | {0x70, 0x60, 3, true, BB_REG_OPR_IMM}, | |
179 | {0x70, 0x70, 3, true, BB_OPR_REG_IMM} | |
180 | }; | |
181 | ||
182 | static int | |
183 | bfextins_n_bytes (bfd_vma memaddr, struct disassemble_info* info) | |
184 | { | |
185 | bfd_byte bb; | |
186 | int status = read_memory (memaddr, &bb, 1, info); | |
187 | if (status < 0) | |
188 | return status; | |
189 | ||
190 | size_t i; | |
191 | const struct opr_bb *bbs = 0; | |
192 | for (i = 0; i < sizeof (bb_modes) / sizeof (bb_modes[0]); ++i) | |
193 | { | |
194 | bbs = bb_modes + i; | |
195 | if ((bb & bbs->mask) == bbs->value) | |
196 | { | |
197 | break; | |
198 | } | |
199 | } | |
200 | ||
201 | int n = bbs->n_operands; | |
202 | if (bbs->opr) | |
203 | n += opr_n_bytes (memaddr + n - 1, info); | |
204 | ||
205 | return n; | |
206 | } | |
207 | ||
208 | static int | |
209 | single (bfd_vma memaddr ATTRIBUTE_UNUSED, | |
210 | struct disassemble_info* info ATTRIBUTE_UNUSED) | |
211 | { | |
212 | return 1; | |
213 | } | |
214 | ||
215 | static int | |
216 | two (bfd_vma memaddr ATTRIBUTE_UNUSED, | |
217 | struct disassemble_info* info ATTRIBUTE_UNUSED) | |
218 | { | |
219 | return 2; | |
220 | } | |
221 | ||
222 | static int | |
223 | three (bfd_vma memaddr ATTRIBUTE_UNUSED, | |
224 | struct disassemble_info* info ATTRIBUTE_UNUSED) | |
225 | { | |
226 | return 3; | |
227 | } | |
228 | ||
229 | static int | |
230 | four (bfd_vma memaddr ATTRIBUTE_UNUSED, | |
231 | struct disassemble_info* info ATTRIBUTE_UNUSED) | |
232 | { | |
233 | return 4; | |
234 | } | |
235 | ||
236 | static int | |
237 | five (bfd_vma memaddr ATTRIBUTE_UNUSED, | |
238 | struct disassemble_info* info ATTRIBUTE_UNUSED) | |
239 | { | |
240 | return 5; | |
241 | } | |
242 | ||
243 | static int | |
244 | pcrel_15bit (bfd_vma memaddr, struct disassemble_info* info) | |
245 | { | |
246 | bfd_byte byte; | |
247 | int status = read_memory (memaddr, &byte, 1, info); | |
248 | if (status < 0) | |
249 | return status; | |
250 | return (byte & 0x80) ? 3 : 2; | |
251 | } | |
252 | ||
253 | ||
254 | \f | |
255 | ||
256 | static void | |
257 | operand_separator (struct disassemble_info *info) | |
258 | { | |
259 | if ((info->flags & 0x2)) | |
260 | { | |
261 | (*info->fprintf_func) (info->stream, ", "); | |
262 | } | |
263 | else | |
264 | { | |
265 | (*info->fprintf_func) (info->stream, " "); | |
266 | } | |
267 | ||
268 | info->flags |= 0x2; | |
269 | } | |
270 | ||
271 | \f | |
272 | ||
273 | static void | |
274 | imm1 (bfd_vma memaddr, struct disassemble_info* info) | |
275 | { | |
276 | bfd_byte byte; | |
277 | int status = read_memory (memaddr, &byte, 1, info); | |
278 | if (status < 0) | |
279 | return; | |
280 | ||
281 | operand_separator (info); | |
282 | (*info->fprintf_func) (info->stream, "#%d", byte); | |
283 | } | |
284 | ||
285 | static void | |
286 | trap_decode (bfd_vma memaddr, struct disassemble_info* info) | |
287 | { | |
288 | imm1 (memaddr - 1, info); | |
289 | } | |
290 | ||
291 | ||
292 | const struct reg registers[S12Z_N_REGISTERS] = | |
293 | { | |
294 | {"d2", 2}, | |
295 | {"d3", 2}, | |
296 | {"d4", 2}, | |
297 | {"d5", 2}, | |
298 | ||
299 | {"d0", 1}, | |
300 | {"d1", 1}, | |
301 | ||
302 | {"d6", 4}, | |
303 | {"d7", 4}, | |
304 | ||
305 | {"x", 3}, | |
306 | {"y", 3}, | |
307 | {"s", 3}, | |
308 | {"p", 3}, | |
309 | {"cch", 1}, | |
310 | {"ccl", 1}, | |
311 | {"ccw", 2} | |
312 | }; | |
313 | ||
314 | static char * | |
315 | xys_from_postbyte (uint8_t postbyte) | |
316 | { | |
317 | char *reg = "?"; | |
318 | switch ((postbyte & 0x30) >> 4) | |
319 | { | |
320 | case 0: | |
321 | reg = "x"; | |
322 | break; | |
323 | case 1: | |
324 | reg = "y"; | |
325 | break; | |
326 | case 2: | |
327 | reg = "s"; | |
328 | break; | |
329 | default: | |
330 | reg = "?"; | |
331 | break; | |
332 | } | |
333 | return reg; | |
334 | } | |
335 | ||
336 | static char * | |
337 | xysp_from_postbyte (uint8_t postbyte) | |
338 | { | |
339 | char *reg = "?"; | |
340 | switch ((postbyte & 0x30) >> 4) | |
341 | { | |
342 | case 0: | |
343 | reg = "x"; | |
344 | break; | |
345 | case 1: | |
346 | reg = "y"; | |
347 | break; | |
348 | case 2: | |
349 | reg = "s"; | |
350 | break; | |
351 | default: | |
352 | reg = "p"; | |
353 | break; | |
354 | } | |
355 | return reg; | |
356 | } | |
357 | ||
358 | /* Render the symbol name whose value is ADDR or the adddress itself if there is | |
359 | no symbol. */ | |
360 | static void | |
361 | decode_possible_symbol (bfd_vma addr, struct disassemble_info *info) | |
362 | { | |
363 | if (!info->symbol_at_address_func (addr, info)) | |
364 | { | |
365 | (*info->fprintf_func) (info->stream, "%" BFD_VMA_FMT "d", addr); | |
366 | } | |
367 | else | |
368 | { | |
369 | asymbol *sym = NULL; | |
370 | int j; | |
371 | for (j = 0; j < info->symtab_size; ++j) | |
372 | { | |
373 | sym = info->symtab[j]; | |
374 | if (bfd_asymbol_value (sym) == addr) | |
375 | { | |
376 | break; | |
377 | } | |
378 | } | |
379 | if (j < info->symtab_size) | |
380 | (*info->fprintf_func) (info->stream, "%s", bfd_asymbol_name (sym)); | |
381 | } | |
382 | } | |
383 | ||
384 | static void ld_18bit_decode (bfd_vma memaddr, struct disassemble_info* info); | |
385 | ||
386 | static void | |
387 | ext24_decode (bfd_vma memaddr, struct disassemble_info* info) | |
388 | { | |
389 | uint8_t buffer[3]; | |
390 | int status = read_memory (memaddr, buffer, 3, info); | |
391 | if (status < 0) | |
392 | return; | |
393 | ||
394 | int i; | |
395 | uint32_t addr = 0; | |
396 | for (i = 0; i < 3; ++i) | |
397 | { | |
398 | addr <<= 8; | |
399 | addr |= buffer[i]; | |
400 | } | |
401 | ||
402 | operand_separator (info); | |
403 | decode_possible_symbol (addr, info); | |
404 | } | |
405 | ||
406 | ||
407 | static uint32_t | |
408 | decode_signed_value (bfd_vma memaddr, struct disassemble_info* info, short size) | |
409 | { | |
410 | assert (size >0); | |
411 | assert (size <= 4); | |
412 | bfd_byte buffer[4]; | |
413 | if (0 > read_memory (memaddr, buffer, size, info)) | |
414 | { | |
415 | return 0; | |
416 | } | |
417 | ||
418 | int i; | |
419 | uint32_t value = 0; | |
420 | for (i = 0; i < size; ++i) | |
421 | { | |
422 | value |= buffer[i] << (8 * (size - i - 1)); | |
423 | } | |
424 | ||
425 | if (buffer[0] & 0x80) | |
426 | { | |
427 | /* Deal with negative values */ | |
428 | value -= 0x1UL << (size * 8); | |
429 | } | |
430 | return value; | |
431 | } | |
432 | ||
433 | ||
434 | static void | |
435 | opr_decode (bfd_vma memaddr, struct disassemble_info* info) | |
436 | { | |
437 | bfd_byte postbyte; | |
438 | int status = read_memory (memaddr, &postbyte, 1, info); | |
439 | if (status < 0) | |
440 | return; | |
441 | ||
442 | enum OPR_MODE mode = -1; | |
443 | size_t i; | |
444 | for (i = 0; i < sizeof (opr_pb) / sizeof (opr_pb[0]); ++i) | |
445 | { | |
446 | const struct opr_pb *pb = opr_pb + i; | |
447 | if ((postbyte & pb->mask) == pb->value) | |
448 | { | |
449 | mode = pb->mode; | |
450 | break; | |
451 | } | |
452 | } | |
453 | ||
454 | operand_separator (info); | |
455 | switch (mode) | |
456 | { | |
457 | case OPR_IMMe4: | |
458 | { | |
459 | int n; | |
460 | uint8_t x = (postbyte & 0x0F); | |
461 | if (x == 0) | |
462 | n = -1; | |
463 | else | |
464 | n = x; | |
465 | ||
466 | (*info->fprintf_func) (info->stream, "#%d", n); | |
467 | break; | |
468 | } | |
469 | case OPR_REG: | |
470 | { | |
471 | uint8_t x = (postbyte & 0x07); | |
472 | (*info->fprintf_func) (info->stream, "%s", registers[x].name); | |
473 | break; | |
474 | } | |
475 | case OPR_OFXYS: | |
476 | { | |
477 | const char *reg = xys_from_postbyte (postbyte); | |
478 | (*info->fprintf_func) (info->stream, "(%d,%s)", postbyte & 0x0F, reg); | |
479 | break; | |
480 | } | |
481 | case OPR_REG_DIRECT: | |
482 | { | |
483 | (*info->fprintf_func) (info->stream, "(%s,%s)", registers[postbyte & 0x07].name, | |
484 | xys_from_postbyte (postbyte)); | |
485 | break; | |
486 | } | |
487 | case OPR_REG_INDIRECT: | |
488 | { | |
489 | (*info->fprintf_func) (info->stream, "[%s,%s]", registers[postbyte & 0x07].name, | |
490 | (postbyte & 0x10) ? "y": "x"); | |
491 | break; | |
492 | } | |
493 | ||
494 | case OPR_IDX_INDIRECT: | |
495 | { | |
496 | uint8_t x1; | |
497 | read_memory (memaddr + 1, &x1, 1, info); | |
498 | int idx = x1; | |
499 | ||
500 | if (postbyte & 0x01) | |
501 | { | |
502 | /* Deal with negative values */ | |
503 | idx -= 0x1UL << 8; | |
504 | } | |
505 | ||
506 | (*info->fprintf_func) (info->stream, "[%d,%s]", idx, | |
507 | xysp_from_postbyte (postbyte)); | |
508 | break; | |
509 | } | |
510 | ||
511 | case OPR_IDX3_DIRECT: | |
512 | { | |
513 | uint8_t x[3]; | |
514 | read_memory (memaddr + 1, x, 3, info); | |
515 | int idx = x[0] << 16 | x[1] << 8 | x[2]; | |
516 | ||
517 | if (x[0] & 0x80) | |
518 | { | |
519 | /* Deal with negative values */ | |
520 | idx -= 0x1UL << 24; | |
521 | } | |
522 | ||
523 | (*info->fprintf_func) (info->stream, "(%d,%s)", idx, | |
524 | xysp_from_postbyte (postbyte)); | |
525 | break; | |
526 | } | |
527 | ||
528 | case OPR_IDX3_DIRECT_REG: | |
529 | { | |
530 | uint8_t x[3]; | |
531 | read_memory (memaddr + 1, x, 3, info); | |
532 | int idx = x[0] << 16 | x[1] << 8 | x[2]; | |
533 | ||
534 | if (x[0] & 0x80) | |
535 | { | |
536 | /* Deal with negative values */ | |
537 | idx -= 0x1UL << 24; | |
538 | } | |
539 | ||
540 | (*info->fprintf_func) (info->stream, "(%d,%s)", idx, | |
541 | registers[postbyte & 0x07].name); | |
542 | break; | |
543 | } | |
544 | ||
545 | case OPR_IDX3_INDIRECT: | |
546 | { | |
547 | uint8_t x[3]; | |
548 | read_memory (memaddr + 1, x, 3, info); | |
549 | int idx = x[0] << 16 | x[1] << 8 | x[2]; | |
550 | ||
551 | if (x[0] & 0x80) | |
552 | { | |
553 | /* Deal with negative values */ | |
554 | idx -= 0x1UL << 24; | |
555 | } | |
556 | ||
557 | (*info->fprintf_func) (info->stream, "[%d,%s]", idx, | |
558 | xysp_from_postbyte (postbyte)); | |
559 | break; | |
560 | } | |
561 | ||
562 | case OPR_IDX_DIRECT: | |
563 | { | |
564 | uint8_t x1; | |
565 | read_memory (memaddr + 1, &x1, 1, info); | |
566 | int idx = x1; | |
567 | ||
568 | if (postbyte & 0x01) | |
569 | { | |
570 | /* Deal with negative values */ | |
571 | idx -= 0x1UL << 8; | |
572 | } | |
573 | ||
574 | (*info->fprintf_func) (info->stream, "(%d,%s)", idx, | |
575 | xysp_from_postbyte (postbyte)); | |
576 | break; | |
577 | } | |
578 | ||
579 | case OPR_IDX2_REG: | |
580 | { | |
581 | uint8_t x[2]; | |
582 | read_memory (memaddr + 1, x, 2, info); | |
583 | uint32_t offset = x[1] | x[0] << 8 ; | |
584 | offset |= (postbyte & 0x30) << 12; | |
585 | ||
586 | (*info->fprintf_func) (info->stream, "(%d,%s)", offset, | |
587 | registers[postbyte & 0x07].name); | |
588 | break; | |
589 | } | |
590 | ||
591 | case OPR_XY_PRE_INC: | |
592 | { | |
593 | (*info->fprintf_func) (info->stream, "(+%s)", | |
594 | (postbyte & 0x10) ? "y": "x"); | |
595 | ||
596 | break; | |
597 | } | |
598 | case OPR_XY_POST_INC: | |
599 | { | |
600 | (*info->fprintf_func) (info->stream, "(%s+)", | |
601 | (postbyte & 0x10) ? "y": "x"); | |
602 | ||
603 | break; | |
604 | } | |
605 | case OPR_XY_PRE_DEC: | |
606 | { | |
607 | (*info->fprintf_func) (info->stream, "(-%s)", | |
608 | (postbyte & 0x10) ? "y": "x"); | |
609 | ||
610 | break; | |
611 | } | |
612 | case OPR_XY_POST_DEC: | |
613 | { | |
614 | (*info->fprintf_func) (info->stream, "(%s-)", | |
615 | (postbyte & 0x10) ? "y": "x"); | |
616 | ||
617 | break; | |
618 | } | |
619 | case OPR_S_PRE_DEC: | |
620 | { | |
621 | (*info->fprintf_func) (info->stream, "(-s)"); | |
622 | break; | |
623 | } | |
624 | case OPR_S_POST_INC: | |
625 | { | |
626 | (*info->fprintf_func) (info->stream, "(s+)"); | |
627 | break; | |
628 | } | |
629 | ||
630 | case OPR_EXT18: | |
631 | { | |
632 | const size_t size = 2; | |
633 | bfd_byte buffer[4]; | |
634 | status = read_memory (memaddr + 1, buffer, size, info); | |
635 | if (status < 0) | |
636 | return; | |
637 | ||
638 | uint32_t ext18 = 0; | |
639 | for (i = 0; i < size; ++i) | |
640 | { | |
641 | ext18 <<= 8; | |
642 | ext18 |= buffer[i]; | |
643 | } | |
644 | ||
645 | ext18 |= (postbyte & 0x01) << 16; | |
646 | ext18 |= (postbyte & 0x04) << 15; | |
647 | ||
648 | decode_possible_symbol (ext18, info); | |
649 | break; | |
650 | } | |
651 | ||
652 | case OPR_EXT1: | |
653 | { | |
654 | uint8_t x1 = 0; | |
655 | read_memory (memaddr + 1, &x1, 1, info); | |
656 | int16_t addr; | |
657 | addr = x1; | |
658 | addr |= (postbyte & 0x3f) << 8; | |
659 | ||
660 | decode_possible_symbol (addr, info); | |
661 | break; | |
662 | } | |
663 | ||
664 | case OPR_EXT3_DIRECT: | |
665 | { | |
666 | const size_t size = 3; | |
667 | bfd_byte buffer[4]; | |
668 | status = read_memory (memaddr + 1, buffer, size, info); | |
669 | if (status < 0) | |
670 | return; | |
671 | ||
672 | uint32_t ext24 = 0; | |
673 | for (i = 0; i < size; ++i) | |
674 | { | |
675 | ext24 |= buffer[i] << (8 * (size - i - 1)); | |
676 | } | |
677 | ||
678 | decode_possible_symbol (ext24, info); | |
679 | break; | |
680 | } | |
681 | ||
682 | case OPR_EXT3_INDIRECT: | |
683 | { | |
684 | const size_t size = 3; | |
685 | bfd_byte buffer[4]; | |
686 | status = read_memory (memaddr + 1, buffer, size, info); | |
687 | if (status < 0) | |
688 | return; | |
689 | ||
690 | uint32_t ext24 = 0; | |
691 | for (i = 0; i < size; ++i) | |
692 | { | |
693 | ext24 |= buffer[i] << (8 * (size - i - 1)); | |
694 | } | |
695 | ||
696 | (*info->fprintf_func) (info->stream, "[%d]", ext24); | |
697 | ||
698 | break; | |
699 | } | |
700 | ||
701 | default: | |
702 | (*info->fprintf_func) (info->stream, "Unknown OPR mode #0x%x (%d)", postbyte, mode); | |
703 | } | |
704 | } | |
705 | ||
706 | ||
707 | static void | |
708 | opr_decode2 (bfd_vma memaddr, struct disassemble_info* info) | |
709 | { | |
710 | int n = opr_n_bytes (memaddr, info); | |
711 | opr_decode (memaddr, info); | |
712 | opr_decode (memaddr + n, info); | |
713 | } | |
714 | ||
715 | static void | |
716 | imm1234 (bfd_vma memaddr, struct disassemble_info* info, int base) | |
717 | { | |
718 | bfd_byte opcode; | |
719 | int status = read_memory (memaddr - 1, &opcode, 1, info); | |
720 | if (status < 0) | |
721 | return; | |
722 | ||
723 | opcode -= base; | |
724 | ||
725 | int size = registers[opcode & 0xF].bytes; | |
726 | ||
727 | uint32_t imm = decode_signed_value (memaddr, info, size); | |
728 | operand_separator (info); | |
729 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
730 | } | |
731 | ||
732 | ||
733 | /* Special case of LD and CMP with register S and IMM operand */ | |
734 | static void | |
735 | reg_s_imm (bfd_vma memaddr, struct disassemble_info* info) | |
736 | { | |
737 | operand_separator (info); | |
738 | (*info->fprintf_func) (info->stream, "s"); | |
739 | ||
740 | uint32_t imm = decode_signed_value (memaddr, info, 3); | |
741 | operand_separator (info); | |
742 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
743 | } | |
744 | ||
745 | /* Special case of LD, CMP and ST with register S and OPR operand */ | |
746 | static void | |
747 | reg_s_opr (bfd_vma memaddr, struct disassemble_info* info) | |
748 | { | |
749 | operand_separator (info); | |
750 | (*info->fprintf_func) (info->stream, "s"); | |
751 | ||
752 | opr_decode (memaddr, info); | |
753 | } | |
754 | ||
755 | static void | |
756 | imm1234_8base (bfd_vma memaddr, struct disassemble_info* info) | |
757 | { | |
758 | imm1234 (memaddr, info, 8); | |
759 | } | |
760 | ||
761 | static void | |
762 | imm1234_0base (bfd_vma memaddr, struct disassemble_info* info) | |
763 | { | |
764 | imm1234 (memaddr, info, 0); | |
765 | } | |
766 | ||
767 | static void | |
768 | tfr (bfd_vma memaddr, struct disassemble_info* info) | |
769 | { | |
770 | bfd_byte byte; | |
771 | int status = read_memory (memaddr, &byte, 1, info); | |
772 | if (status < 0) | |
773 | return; | |
774 | ||
775 | operand_separator (info); | |
776 | (*info->fprintf_func) (info->stream, "%s, %s", | |
777 | registers[byte >> 4].name, | |
778 | registers[byte & 0xF].name); | |
779 | } | |
780 | ||
781 | ||
782 | static void | |
783 | reg (bfd_vma memaddr, struct disassemble_info* info) | |
784 | { | |
785 | bfd_byte byte; | |
786 | int status = read_memory (memaddr - 1, &byte, 1, info); | |
787 | if (status < 0) | |
788 | return; | |
789 | ||
790 | operand_separator (info); | |
791 | (*info->fprintf_func) (info->stream, "%s", registers[byte & 0x07].name); | |
792 | } | |
793 | ||
794 | static void | |
795 | reg_xy (bfd_vma memaddr, struct disassemble_info* info) | |
796 | { | |
797 | bfd_byte byte; | |
798 | int status = read_memory (memaddr - 1, &byte, 1, info); | |
799 | if (status < 0) | |
800 | return; | |
801 | ||
802 | operand_separator (info); | |
803 | (*info->fprintf_func) (info->stream, "%s", (byte & 0x01) ? "y" : "x"); | |
804 | } | |
805 | ||
806 | static void | |
807 | lea_reg_xys_opr (bfd_vma memaddr, struct disassemble_info* info) | |
808 | { | |
809 | bfd_byte byte; | |
810 | int status = read_memory (memaddr - 1, &byte, 1, info); | |
811 | if (status < 0) | |
812 | return; | |
813 | ||
814 | char *reg = NULL; | |
815 | switch (byte & 0x03) | |
816 | { | |
817 | case 0x00: | |
818 | reg = "x"; | |
819 | break; | |
820 | case 0x01: | |
821 | reg = "y"; | |
822 | break; | |
823 | case 0x02: | |
824 | reg = "s"; | |
825 | break; | |
826 | } | |
827 | ||
828 | operand_separator (info); | |
829 | (*info->fprintf_func) (info->stream, "%s", reg); | |
830 | opr_decode (memaddr, info); | |
831 | } | |
832 | ||
833 | ||
834 | ||
835 | static void | |
836 | lea_reg_xys (bfd_vma memaddr, struct disassemble_info* info) | |
837 | { | |
838 | bfd_byte byte; | |
839 | int status = read_memory (memaddr - 1, &byte, 1, info); | |
840 | if (status < 0) | |
841 | return; | |
842 | ||
843 | char *reg = NULL; | |
844 | switch (byte & 0x03) | |
845 | { | |
846 | case 0x00: | |
847 | reg = "x"; | |
848 | break; | |
849 | case 0x01: | |
850 | reg = "y"; | |
851 | break; | |
852 | case 0x02: | |
853 | reg = "s"; | |
854 | break; | |
855 | } | |
856 | ||
857 | status = read_memory (memaddr, &byte, 1, info); | |
858 | if (status < 0) | |
859 | return; | |
860 | ||
861 | int8_t v = byte; | |
862 | ||
863 | operand_separator (info); | |
864 | (*info->fprintf_func) (info->stream, "%s, (%d,%s)", reg, v, reg); | |
865 | } | |
866 | ||
867 | ||
868 | /* PC Relative offsets of size 15 or 7 bits */ | |
869 | static void | |
870 | rel_15_7 (bfd_vma memaddr, struct disassemble_info* info, int offset) | |
871 | { | |
872 | bfd_byte upper; | |
873 | int status = read_memory (memaddr, &upper, 1, info); | |
874 | if (status < 0) | |
875 | return; | |
876 | ||
877 | bool rel_size = (upper & 0x80); | |
878 | ||
879 | int16_t addr = upper; | |
880 | if (rel_size) | |
881 | { | |
882 | /* 15 bits. Get the next byte */ | |
883 | bfd_byte lower; | |
884 | status = read_memory (memaddr + 1, &lower, 1, info); | |
885 | if (status < 0) | |
886 | return; | |
887 | ||
888 | addr <<= 8; | |
889 | addr |= lower; | |
890 | addr &= 0x7FFF; | |
891 | ||
892 | bool negative = (addr & 0x4000); | |
893 | addr &= 0x3FFF; | |
894 | if (negative) | |
895 | addr = addr - 0x4000; | |
896 | } | |
897 | else | |
898 | { | |
899 | /* 7 bits. */ | |
900 | bool negative = (addr & 0x40); | |
901 | addr &= 0x3F; | |
902 | if (negative) | |
903 | addr = addr - 0x40; | |
904 | } | |
905 | ||
906 | operand_separator (info); | |
907 | if (!info->symbol_at_address_func (addr + memaddr - offset, info)) | |
908 | { | |
909 | (*info->fprintf_func) (info->stream, "*%+d", addr); | |
910 | } | |
911 | else | |
912 | { | |
913 | asymbol *sym = NULL; | |
914 | int i; | |
915 | for (i = 0; i < info->symtab_size; ++i) | |
916 | { | |
917 | sym = info->symtab[i]; | |
918 | if (bfd_asymbol_value (sym) == addr + memaddr - offset) | |
919 | { | |
920 | break; | |
921 | } | |
922 | } | |
923 | if (i < info->symtab_size) | |
924 | (*info->fprintf_func) (info->stream, "%s", bfd_asymbol_name (sym)); | |
925 | } | |
926 | } | |
927 | ||
928 | ||
929 | /* PC Relative offsets of size 15 or 7 bits */ | |
930 | static void | |
931 | decode_rel_15_7 (bfd_vma memaddr, struct disassemble_info* info) | |
932 | { | |
933 | rel_15_7 (memaddr, info, 1); | |
934 | } | |
935 | ||
936 | struct opcode | |
937 | { | |
938 | const char *mnemonic; | |
939 | insn_bytes_f insn_bytes; | |
940 | operands_f operands; | |
941 | operands_f operands2; | |
942 | }; | |
943 | ||
944 | static int shift_n_bytes (bfd_vma memaddr, struct disassemble_info* info); | |
945 | static int mov_imm_opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info); | |
946 | static int loop_prim_n_bytes (bfd_vma memaddr, struct disassemble_info* info); | |
947 | static void mov_imm_opr (bfd_vma memaddr, struct disassemble_info* info); | |
948 | static void bm_rel_decode (bfd_vma memaddr, struct disassemble_info* info); | |
949 | static int bm_rel_n_bytes (bfd_vma memaddr, struct disassemble_info* info); | |
950 | static int mul_n_bytes (bfd_vma memaddr, struct disassemble_info* info); | |
951 | static void mul_decode (bfd_vma memaddr, struct disassemble_info* info); | |
952 | static int bm_n_bytes (bfd_vma memaddr, struct disassemble_info* info); | |
953 | static void bm_decode (bfd_vma memaddr, struct disassemble_info* info); | |
954 | ||
955 | static void | |
956 | cmp_xy (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info) | |
957 | { | |
958 | operand_separator (info); | |
959 | (*info->fprintf_func) (info->stream, "x, y"); | |
960 | } | |
961 | ||
962 | static void | |
963 | sub_d6_x_y (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info) | |
964 | { | |
965 | operand_separator (info); | |
966 | (*info->fprintf_func) (info->stream, "d6, x, y"); | |
967 | } | |
968 | ||
969 | static void | |
970 | sub_d6_y_x (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info) | |
971 | { | |
972 | operand_separator (info); | |
973 | (*info->fprintf_func) (info->stream, "d6, y, x"); | |
974 | } | |
975 | ||
976 | static const char shift_size_table[] = { | |
977 | 'b', 'w', 'p', 'l' | |
978 | }; | |
979 | ||
980 | static const struct opcode page2[] = | |
981 | { | |
982 | [0x00] = {"ld", opr_n_bytes_p1, 0, reg_s_opr}, | |
983 | [0x01] = {"st", opr_n_bytes_p1, 0, reg_s_opr}, | |
984 | [0x02] = {"cmp", opr_n_bytes_p1, 0, reg_s_opr}, | |
985 | [0x03] = {"ld", four, 0, reg_s_imm}, | |
986 | [0x04] = {"cmp", four, 0, reg_s_imm}, | |
987 | [0x05] = {"stop", single, 0, 0}, | |
988 | [0x06] = {"wai", single, 0, 0}, | |
989 | [0x07] = {"sys", single, 0, 0}, | |
990 | [0x08] = {NULL, bfextins_n_bytes, 0, 0}, /* BFEXT / BFINS */ | |
991 | [0x09] = {NULL, bfextins_n_bytes, 0, 0}, | |
992 | [0x0a] = {NULL, bfextins_n_bytes, 0, 0}, | |
993 | [0x0b] = {NULL, bfextins_n_bytes, 0, 0}, | |
994 | [0x0c] = {NULL, bfextins_n_bytes, 0, 0}, | |
995 | [0x0d] = {NULL, bfextins_n_bytes, 0, 0}, | |
996 | [0x0e] = {NULL, bfextins_n_bytes, 0, 0}, | |
997 | [0x0f] = {NULL, bfextins_n_bytes, 0, 0}, | |
998 | [0x10] = {"minu", opr_n_bytes_p1, reg, opr_decode}, | |
999 | [0x11] = {"minu", opr_n_bytes_p1, reg, opr_decode}, | |
1000 | [0x12] = {"minu", opr_n_bytes_p1, reg, opr_decode}, | |
1001 | [0x13] = {"minu", opr_n_bytes_p1, reg, opr_decode}, | |
1002 | [0x14] = {"minu", opr_n_bytes_p1, reg, opr_decode}, | |
1003 | [0x15] = {"minu", opr_n_bytes_p1, reg, opr_decode}, | |
1004 | [0x16] = {"minu", opr_n_bytes_p1, reg, opr_decode}, | |
1005 | [0x17] = {"minu", opr_n_bytes_p1, reg, opr_decode}, | |
1006 | [0x18] = {"maxu", opr_n_bytes_p1, reg, opr_decode}, | |
1007 | [0x19] = {"maxu", opr_n_bytes_p1, reg, opr_decode}, | |
1008 | [0x1a] = {"maxu", opr_n_bytes_p1, reg, opr_decode}, | |
1009 | [0x1b] = {"maxu", opr_n_bytes_p1, reg, opr_decode}, | |
1010 | [0x1c] = {"maxu", opr_n_bytes_p1, reg, opr_decode}, | |
1011 | [0x1d] = {"maxu", opr_n_bytes_p1, reg, opr_decode}, | |
1012 | [0x1e] = {"maxu", opr_n_bytes_p1, reg, opr_decode}, | |
1013 | [0x1f] = {"maxu", opr_n_bytes_p1, reg, opr_decode}, | |
1014 | [0x20] = {"mins", opr_n_bytes_p1, reg, opr_decode}, | |
1015 | [0x21] = {"mins", opr_n_bytes_p1, reg, opr_decode}, | |
1016 | [0x22] = {"mins", opr_n_bytes_p1, reg, opr_decode}, | |
1017 | [0x23] = {"mins", opr_n_bytes_p1, reg, opr_decode}, | |
1018 | [0x24] = {"mins", opr_n_bytes_p1, reg, opr_decode}, | |
1019 | [0x25] = {"mins", opr_n_bytes_p1, reg, opr_decode}, | |
1020 | [0x26] = {"mins", opr_n_bytes_p1, reg, opr_decode}, | |
1021 | [0x27] = {"mins", opr_n_bytes_p1, reg, opr_decode}, | |
1022 | [0x28] = {"maxs", opr_n_bytes_p1, reg, opr_decode}, | |
1023 | [0x29] = {"maxs", opr_n_bytes_p1, reg, opr_decode}, | |
1024 | [0x2a] = {"maxs", opr_n_bytes_p1, reg, opr_decode}, | |
1025 | [0x2b] = {"maxs", opr_n_bytes_p1, reg, opr_decode}, | |
1026 | [0x2c] = {"maxs", opr_n_bytes_p1, reg, opr_decode}, | |
1027 | [0x2d] = {"maxs", opr_n_bytes_p1, reg, opr_decode}, | |
1028 | [0x2e] = {"maxs", opr_n_bytes_p1, reg, opr_decode}, | |
1029 | [0x2f] = {"maxs", opr_n_bytes_p1, reg, opr_decode}, | |
1030 | [0x30] = {"div", mul_n_bytes, mul_decode, 0}, | |
1031 | [0x31] = {"div", mul_n_bytes, mul_decode, 0}, | |
1032 | [0x32] = {"div", mul_n_bytes, mul_decode, 0}, | |
1033 | [0x33] = {"div", mul_n_bytes, mul_decode, 0}, | |
1034 | [0x34] = {"div", mul_n_bytes, mul_decode, 0}, | |
1035 | [0x35] = {"div", mul_n_bytes, mul_decode, 0}, | |
1036 | [0x36] = {"div", mul_n_bytes, mul_decode, 0}, | |
1037 | [0x37] = {"div", mul_n_bytes, mul_decode, 0}, | |
1038 | [0x38] = {"mod", mul_n_bytes, mul_decode, 0}, | |
1039 | [0x39] = {"mod", mul_n_bytes, mul_decode, 0}, | |
1040 | [0x3a] = {"mod", mul_n_bytes, mul_decode, 0}, | |
1041 | [0x3b] = {"mod", mul_n_bytes, mul_decode, 0}, | |
1042 | [0x3c] = {"mod", mul_n_bytes, mul_decode, 0}, | |
1043 | [0x3d] = {"mod", mul_n_bytes, mul_decode, 0}, | |
1044 | [0x3e] = {"mod", mul_n_bytes, mul_decode, 0}, | |
1045 | [0x3f] = {"mod", mul_n_bytes, mul_decode, 0}, | |
1046 | [0x40] = {"abs", single, reg, 0}, | |
1047 | [0x41] = {"abs", single, reg, 0}, | |
1048 | [0x42] = {"abs", single, reg, 0}, | |
1049 | [0x43] = {"abs", single, reg, 0}, | |
1050 | [0x44] = {"abs", single, reg, 0}, | |
1051 | [0x45] = {"abs", single, reg, 0}, | |
1052 | [0x46] = {"abs", single, reg, 0}, | |
1053 | [0x47] = {"abs", single, reg, 0}, | |
1054 | [0x48] = {"mac", mul_n_bytes, mul_decode, 0}, | |
1055 | [0x49] = {"mac", mul_n_bytes, mul_decode, 0}, | |
1056 | [0x4a] = {"mac", mul_n_bytes, mul_decode, 0}, | |
1057 | [0x4b] = {"mac", mul_n_bytes, mul_decode, 0}, | |
1058 | [0x4c] = {"mac", mul_n_bytes, mul_decode, 0}, | |
1059 | [0x4d] = {"mac", mul_n_bytes, mul_decode, 0}, | |
1060 | [0x4e] = {"mac", mul_n_bytes, mul_decode, 0}, | |
1061 | [0x4f] = {"mac", mul_n_bytes, mul_decode, 0}, | |
1062 | [0x50] = {"adc", three, reg, imm1234_0base}, | |
1063 | [0x51] = {"adc", three, reg, imm1234_0base}, | |
1064 | [0x52] = {"adc", three, reg, imm1234_0base}, | |
1065 | [0x53] = {"adc", three, reg, imm1234_0base}, | |
1066 | [0x54] = {"adc", two, reg, imm1234_0base}, | |
1067 | [0x55] = {"adc", two, reg, imm1234_0base}, | |
1068 | [0x56] = {"adc", five, reg, imm1234_0base}, | |
1069 | [0x57] = {"adc", five, reg, imm1234_0base}, | |
1070 | [0x58] = {"bit", three, reg, imm1234_8base}, | |
1071 | [0x59] = {"bit", three, reg, imm1234_8base}, | |
1072 | [0x5a] = {"bit", three, reg, imm1234_8base}, | |
1073 | [0x5b] = {"bit", three, reg, imm1234_8base}, | |
1074 | [0x5c] = {"bit", two, reg, imm1234_8base}, | |
1075 | [0x5d] = {"bit", two, reg, imm1234_8base}, | |
1076 | [0x5e] = {"bit", five, reg, imm1234_8base}, | |
1077 | [0x5f] = {"bit", five, reg, imm1234_8base}, | |
1078 | [0x60] = {"adc", opr_n_bytes_p1, reg, opr_decode}, | |
1079 | [0x61] = {"adc", opr_n_bytes_p1, reg, opr_decode}, | |
1080 | [0x62] = {"adc", opr_n_bytes_p1, reg, opr_decode}, | |
1081 | [0x63] = {"adc", opr_n_bytes_p1, reg, opr_decode}, | |
1082 | [0x64] = {"adc", opr_n_bytes_p1, reg, opr_decode}, | |
1083 | [0x65] = {"adc", opr_n_bytes_p1, reg, opr_decode}, | |
1084 | [0x66] = {"adc", opr_n_bytes_p1, reg, opr_decode}, | |
1085 | [0x67] = {"adc", opr_n_bytes_p1, reg, opr_decode}, | |
1086 | [0x68] = {"bit", opr_n_bytes_p1, reg, opr_decode}, | |
1087 | [0x69] = {"bit", opr_n_bytes_p1, reg, opr_decode}, | |
1088 | [0x6a] = {"bit", opr_n_bytes_p1, reg, opr_decode}, | |
1089 | [0x6b] = {"bit", opr_n_bytes_p1, reg, opr_decode}, | |
1090 | [0x6c] = {"bit", opr_n_bytes_p1, reg, opr_decode}, | |
1091 | [0x6d] = {"bit", opr_n_bytes_p1, reg, opr_decode}, | |
1092 | [0x6e] = {"bit", opr_n_bytes_p1, reg, opr_decode}, | |
1093 | [0x6f] = {"bit", opr_n_bytes_p1, reg, opr_decode}, | |
1094 | [0x70] = {"sbc", three, reg, imm1234_0base}, | |
1095 | [0x71] = {"sbc", three, reg, imm1234_0base}, | |
1096 | [0x72] = {"sbc", three, reg, imm1234_0base}, | |
1097 | [0x73] = {"sbc", three, reg, imm1234_0base}, | |
1098 | [0x74] = {"sbc", two, reg, imm1234_0base}, | |
1099 | [0x75] = {"sbc", two, reg, imm1234_0base}, | |
1100 | [0x76] = {"sbc", five, reg, imm1234_0base}, | |
1101 | [0x77] = {"sbc", five, reg, imm1234_0base}, | |
1102 | [0x78] = {"eor", three, reg, imm1234_8base}, | |
1103 | [0x79] = {"eor", three, reg, imm1234_8base}, | |
1104 | [0x7a] = {"eor", three, reg, imm1234_8base}, | |
1105 | [0x7b] = {"eor", three, reg, imm1234_8base}, | |
1106 | [0x7c] = {"eor", two, reg, imm1234_8base}, | |
1107 | [0x7d] = {"eor", two, reg, imm1234_8base}, | |
1108 | [0x7e] = {"eor", five, reg, imm1234_8base}, | |
1109 | [0x7f] = {"eor", five, reg, imm1234_8base}, | |
1110 | [0x80] = {"sbc", opr_n_bytes_p1, reg, opr_decode}, | |
1111 | [0x81] = {"sbc", opr_n_bytes_p1, reg, opr_decode}, | |
1112 | [0x82] = {"sbc", opr_n_bytes_p1, reg, opr_decode}, | |
1113 | [0x83] = {"sbc", opr_n_bytes_p1, reg, opr_decode}, | |
1114 | [0x84] = {"sbc", opr_n_bytes_p1, reg, opr_decode}, | |
1115 | [0x85] = {"sbc", opr_n_bytes_p1, reg, opr_decode}, | |
1116 | [0x86] = {"sbc", opr_n_bytes_p1, reg, opr_decode}, | |
1117 | [0x87] = {"sbc", opr_n_bytes_p1, reg, opr_decode}, | |
1118 | [0x88] = {"eor", opr_n_bytes_p1, reg, opr_decode}, | |
1119 | [0x89] = {"eor", opr_n_bytes_p1, reg, opr_decode}, | |
1120 | [0x8a] = {"eor", opr_n_bytes_p1, reg, opr_decode}, | |
1121 | [0x8b] = {"eor", opr_n_bytes_p1, reg, opr_decode}, | |
1122 | [0x8c] = {"eor", opr_n_bytes_p1, reg, opr_decode}, | |
1123 | [0x8d] = {"eor", opr_n_bytes_p1, reg, opr_decode}, | |
1124 | [0x8e] = {"eor", opr_n_bytes_p1, reg, opr_decode}, | |
1125 | [0x8f] = {"eor", opr_n_bytes_p1, reg, opr_decode}, | |
1126 | [0x90] = {"rti", single, 0, 0}, | |
1127 | [0x91] = {"clb", two, tfr, 0}, | |
1128 | [0x92] = {"trap", single, trap_decode, 0}, | |
1129 | [0x93] = {"trap", single, trap_decode, 0}, | |
1130 | [0x94] = {"trap", single, trap_decode, 0}, | |
1131 | [0x95] = {"trap", single, trap_decode, 0}, | |
1132 | [0x96] = {"trap", single, trap_decode, 0}, | |
1133 | [0x97] = {"trap", single, trap_decode, 0}, | |
1134 | [0x98] = {"trap", single, trap_decode, 0}, | |
1135 | [0x99] = {"trap", single, trap_decode, 0}, | |
1136 | [0x9a] = {"trap", single, trap_decode, 0}, | |
1137 | [0x9b] = {"trap", single, trap_decode, 0}, | |
1138 | [0x9c] = {"trap", single, trap_decode, 0}, | |
1139 | [0x9d] = {"trap", single, trap_decode, 0}, | |
1140 | [0x9e] = {"trap", single, trap_decode, 0}, | |
1141 | [0x9f] = {"trap", single, trap_decode, 0}, | |
1142 | [0xa0] = {"sat", single, reg, 0}, | |
1143 | [0xa1] = {"sat", single, reg, 0}, | |
1144 | [0xa2] = {"sat", single, reg, 0}, | |
1145 | [0xa3] = {"sat", single, reg, 0}, | |
1146 | [0xa4] = {"sat", single, reg, 0}, | |
1147 | [0xa5] = {"sat", single, reg, 0}, | |
1148 | [0xa6] = {"sat", single, reg, 0}, | |
1149 | [0xa7] = {"sat", single, reg, 0}, | |
1150 | [0xa8] = {"trap", single, trap_decode, 0}, | |
1151 | [0xa9] = {"trap", single, trap_decode, 0}, | |
1152 | [0xaa] = {"trap", single, trap_decode, 0}, | |
1153 | [0xab] = {"trap", single, trap_decode, 0}, | |
1154 | [0xac] = {"trap", single, trap_decode, 0}, | |
1155 | [0xad] = {"trap", single, trap_decode, 0}, | |
1156 | [0xae] = {"trap", single, trap_decode, 0}, | |
1157 | [0xaf] = {"trap", single, trap_decode, 0}, | |
1158 | [0xb0] = {"qmul", mul_n_bytes, mul_decode, 0}, | |
1159 | [0xb1] = {"qmul", mul_n_bytes, mul_decode, 0}, | |
1160 | [0xb2] = {"qmul", mul_n_bytes, mul_decode, 0}, | |
1161 | [0xb3] = {"qmul", mul_n_bytes, mul_decode, 0}, | |
1162 | [0xb4] = {"qmul", mul_n_bytes, mul_decode, 0}, | |
1163 | [0xb5] = {"qmul", mul_n_bytes, mul_decode, 0}, | |
1164 | [0xb6] = {"qmul", mul_n_bytes, mul_decode, 0}, | |
1165 | [0xb7] = {"qmul", mul_n_bytes, mul_decode, 0}, | |
1166 | [0xb8] = {"trap", single, trap_decode, 0}, | |
1167 | [0xb9] = {"trap", single, trap_decode, 0}, | |
1168 | [0xba] = {"trap", single, trap_decode, 0}, | |
1169 | [0xbb] = {"trap", single, trap_decode, 0}, | |
1170 | [0xbc] = {"trap", single, trap_decode, 0}, | |
1171 | [0xbd] = {"trap", single, trap_decode, 0}, | |
1172 | [0xbe] = {"trap", single, trap_decode, 0}, | |
1173 | [0xbf] = {"trap", single, trap_decode, 0}, | |
1174 | [0xc0] = {"trap", single, trap_decode, 0}, | |
1175 | [0xc1] = {"trap", single, trap_decode, 0}, | |
1176 | [0xc2] = {"trap", single, trap_decode, 0}, | |
1177 | [0xc3] = {"trap", single, trap_decode, 0}, | |
1178 | [0xc4] = {"trap", single, trap_decode, 0}, | |
1179 | [0xc5] = {"trap", single, trap_decode, 0}, | |
1180 | [0xc6] = {"trap", single, trap_decode, 0}, | |
1181 | [0xc7] = {"trap", single, trap_decode, 0}, | |
1182 | [0xc8] = {"trap", single, trap_decode, 0}, | |
1183 | [0xc9] = {"trap", single, trap_decode, 0}, | |
1184 | [0xca] = {"trap", single, trap_decode, 0}, | |
1185 | [0xcb] = {"trap", single, trap_decode, 0}, | |
1186 | [0xcc] = {"trap", single, trap_decode, 0}, | |
1187 | [0xcd] = {"trap", single, trap_decode, 0}, | |
1188 | [0xce] = {"trap", single, trap_decode, 0}, | |
1189 | [0xcf] = {"trap", single, trap_decode, 0}, | |
1190 | [0xd0] = {"trap", single, trap_decode, 0}, | |
1191 | [0xd1] = {"trap", single, trap_decode, 0}, | |
1192 | [0xd2] = {"trap", single, trap_decode, 0}, | |
1193 | [0xd3] = {"trap", single, trap_decode, 0}, | |
1194 | [0xd4] = {"trap", single, trap_decode, 0}, | |
1195 | [0xd5] = {"trap", single, trap_decode, 0}, | |
1196 | [0xd6] = {"trap", single, trap_decode, 0}, | |
1197 | [0xd7] = {"trap", single, trap_decode, 0}, | |
1198 | [0xd8] = {"trap", single, trap_decode, 0}, | |
1199 | [0xd9] = {"trap", single, trap_decode, 0}, | |
1200 | [0xda] = {"trap", single, trap_decode, 0}, | |
1201 | [0xdb] = {"trap", single, trap_decode, 0}, | |
1202 | [0xdc] = {"trap", single, trap_decode, 0}, | |
1203 | [0xdd] = {"trap", single, trap_decode, 0}, | |
1204 | [0xde] = {"trap", single, trap_decode, 0}, | |
1205 | [0xdf] = {"trap", single, trap_decode, 0}, | |
1206 | [0xe0] = {"trap", single, trap_decode, 0}, | |
1207 | [0xe1] = {"trap", single, trap_decode, 0}, | |
1208 | [0xe2] = {"trap", single, trap_decode, 0}, | |
1209 | [0xe3] = {"trap", single, trap_decode, 0}, | |
1210 | [0xe4] = {"trap", single, trap_decode, 0}, | |
1211 | [0xe5] = {"trap", single, trap_decode, 0}, | |
1212 | [0xe6] = {"trap", single, trap_decode, 0}, | |
1213 | [0xe7] = {"trap", single, trap_decode, 0}, | |
1214 | [0xe8] = {"trap", single, trap_decode, 0}, | |
1215 | [0xe9] = {"trap", single, trap_decode, 0}, | |
1216 | [0xea] = {"trap", single, trap_decode, 0}, | |
1217 | [0xeb] = {"trap", single, trap_decode, 0}, | |
1218 | [0xec] = {"trap", single, trap_decode, 0}, | |
1219 | [0xed] = {"trap", single, trap_decode, 0}, | |
1220 | [0xee] = {"trap", single, trap_decode, 0}, | |
1221 | [0xef] = {"trap", single, trap_decode, 0}, | |
1222 | [0xf0] = {"trap", single, trap_decode, 0}, | |
1223 | [0xf1] = {"trap", single, trap_decode, 0}, | |
1224 | [0xf2] = {"trap", single, trap_decode, 0}, | |
1225 | [0xf3] = {"trap", single, trap_decode, 0}, | |
1226 | [0xf4] = {"trap", single, trap_decode, 0}, | |
1227 | [0xf5] = {"trap", single, trap_decode, 0}, | |
1228 | [0xf6] = {"trap", single, trap_decode, 0}, | |
1229 | [0xf7] = {"trap", single, trap_decode, 0}, | |
1230 | [0xf8] = {"trap", single, trap_decode, 0}, | |
1231 | [0xf9] = {"trap", single, trap_decode, 0}, | |
1232 | [0xfa] = {"trap", single, trap_decode, 0}, | |
1233 | [0xfb] = {"trap", single, trap_decode, 0}, | |
1234 | [0xfc] = {"trap", single, trap_decode, 0}, | |
1235 | [0xfd] = {"trap", single, trap_decode, 0}, | |
1236 | [0xfe] = {"trap", single, trap_decode, 0}, | |
1237 | [0xff] = {"trap", single, trap_decode, 0}, | |
1238 | }; | |
1239 | ||
1240 | static const struct opcode page1[] = | |
1241 | { | |
1242 | [0x00] = {"bgnd", single, 0, 0}, | |
1243 | [0x01] = {"nop", single, 0, 0}, | |
1244 | [0x02] = {"brclr", bm_rel_n_bytes, bm_rel_decode, 0}, | |
1245 | [0x03] = {"brset", bm_rel_n_bytes, bm_rel_decode, 0}, | |
1246 | [0x04] = {NULL, two, 0, 0}, /* psh/pul */ | |
1247 | [0x05] = {"rts", single, 0, 0}, | |
1248 | [0x06] = {"lea", opr_n_bytes_p1, reg, opr_decode}, | |
1249 | [0x07] = {"lea", opr_n_bytes_p1, reg, opr_decode}, | |
1250 | [0x08] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0}, | |
1251 | [0x09] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0}, | |
1252 | [0x0a] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0}, | |
1253 | [0x0b] = {NULL, loop_prim_n_bytes, 0, 0}, /* Loop primitives TBcc / DBcc */ | |
1254 | [0x0c] = {"mov.b", mov_imm_opr_n_bytes, mov_imm_opr, 0}, | |
1255 | [0x0d] = {"mov.w", mov_imm_opr_n_bytes, mov_imm_opr, 0}, | |
1256 | [0x0e] = {"mov.p", mov_imm_opr_n_bytes, mov_imm_opr, 0}, | |
1257 | [0x0f] = {"mov.l", mov_imm_opr_n_bytes, mov_imm_opr, 0}, | |
1258 | [0x10] = {NULL, shift_n_bytes, 0, 0}, /* lsr/lsl/asl/asr/rol/ror */ | |
1259 | [0x11] = {NULL, shift_n_bytes, 0, 0}, | |
1260 | [0x12] = {NULL, shift_n_bytes, 0, 0}, | |
1261 | [0x13] = {NULL, shift_n_bytes, 0, 0}, | |
1262 | [0x14] = {NULL, shift_n_bytes, 0, 0}, | |
1263 | [0x15] = {NULL, shift_n_bytes, 0, 0}, | |
1264 | [0x16] = {NULL, shift_n_bytes, 0, 0}, | |
1265 | [0x17] = {NULL, shift_n_bytes, 0, 0}, | |
1266 | [0x18] = {"lea", two, lea_reg_xys, NULL}, | |
1267 | [0x19] = {"lea", two, lea_reg_xys, NULL}, | |
1268 | [0x1a] = {"lea", two, lea_reg_xys, NULL}, | |
1269 | /* 0x1b PG2 */ | |
1270 | [0x1c] = {"mov.b", opr_n_bytes2, 0, opr_decode2}, | |
1271 | [0x1d] = {"mov.w", opr_n_bytes2, 0, opr_decode2}, | |
1272 | [0x1e] = {"mov.p", opr_n_bytes2, 0, opr_decode2}, | |
1273 | [0x1f] = {"mov.l", opr_n_bytes2, 0, opr_decode2}, | |
1274 | [0x20] = {"bra", pcrel_15bit, decode_rel_15_7, 0}, | |
1275 | [0x21] = {"bsr", pcrel_15bit, decode_rel_15_7, 0}, | |
1276 | [0x22] = {"bhi", pcrel_15bit, decode_rel_15_7, 0}, | |
1277 | [0x23] = {"bls", pcrel_15bit, decode_rel_15_7, 0}, | |
1278 | [0x24] = {"bcc", pcrel_15bit, decode_rel_15_7, 0}, | |
1279 | [0x25] = {"bcs", pcrel_15bit, decode_rel_15_7, 0}, | |
1280 | [0x26] = {"bne", pcrel_15bit, decode_rel_15_7, 0}, | |
1281 | [0x27] = {"beq", pcrel_15bit, decode_rel_15_7, 0}, | |
1282 | [0x28] = {"bvc", pcrel_15bit, decode_rel_15_7, 0}, | |
1283 | [0x29] = {"bvs", pcrel_15bit, decode_rel_15_7, 0}, | |
1284 | [0x2a] = {"bpl", pcrel_15bit, decode_rel_15_7, 0}, | |
1285 | [0x2b] = {"bmi", pcrel_15bit, decode_rel_15_7, 0}, | |
1286 | [0x2c] = {"bge", pcrel_15bit, decode_rel_15_7, 0}, | |
1287 | [0x2d] = {"blt", pcrel_15bit, decode_rel_15_7, 0}, | |
1288 | [0x2e] = {"bgt", pcrel_15bit, decode_rel_15_7, 0}, | |
1289 | [0x2f] = {"ble", pcrel_15bit, decode_rel_15_7, 0}, | |
1290 | [0x30] = {"inc", single, reg, 0}, | |
1291 | [0x31] = {"inc", single, reg, 0}, | |
1292 | [0x32] = {"inc", single, reg, 0}, | |
1293 | [0x33] = {"inc", single, reg, 0}, | |
1294 | [0x34] = {"inc", single, reg, 0}, | |
1295 | [0x35] = {"inc", single, reg, 0}, | |
1296 | [0x36] = {"inc", single, reg, 0}, | |
1297 | [0x37] = {"inc", single, reg, 0}, | |
1298 | [0x38] = {"clr", single, reg, 0}, | |
1299 | [0x39] = {"clr", single, reg, 0}, | |
1300 | [0x3a] = {"clr", single, reg, 0}, | |
1301 | [0x3b] = {"clr", single, reg, 0}, | |
1302 | [0x3c] = {"clr", single, reg, 0}, | |
1303 | [0x3d] = {"clr", single, reg, 0}, | |
1304 | [0x3e] = {"clr", single, reg, 0}, | |
1305 | [0x3f] = {"clr", single, reg, 0}, | |
1306 | [0x40] = {"dec", single, reg, 0}, | |
1307 | [0x41] = {"dec", single, reg, 0}, | |
1308 | [0x42] = {"dec", single, reg, 0}, | |
1309 | [0x43] = {"dec", single, reg, 0}, | |
1310 | [0x44] = {"dec", single, reg, 0}, | |
1311 | [0x45] = {"dec", single, reg, 0}, | |
1312 | [0x46] = {"dec", single, reg, 0}, | |
1313 | [0x47] = {"dec", single, reg, 0}, | |
1314 | [0x48] = {"mul", mul_n_bytes, mul_decode, 0}, | |
1315 | [0x49] = {"mul", mul_n_bytes, mul_decode, 0}, | |
1316 | [0x4a] = {"mul", mul_n_bytes, mul_decode, 0}, | |
1317 | [0x4b] = {"mul", mul_n_bytes, mul_decode, 0}, | |
1318 | [0x4c] = {"mul", mul_n_bytes, mul_decode, 0}, | |
1319 | [0x4d] = {"mul", mul_n_bytes, mul_decode, 0}, | |
1320 | [0x4e] = {"mul", mul_n_bytes, mul_decode, 0}, | |
1321 | [0x4f] = {"mul", mul_n_bytes, mul_decode, 0}, | |
1322 | [0x50] = {"add", three, reg, imm1234_0base}, | |
1323 | [0x51] = {"add", three, reg, imm1234_0base}, | |
1324 | [0x52] = {"add", three, reg, imm1234_0base}, | |
1325 | [0x53] = {"add", three, reg, imm1234_0base}, | |
1326 | [0x54] = {"add", two, reg, imm1234_0base}, | |
1327 | [0x55] = {"add", two, reg, imm1234_0base}, | |
1328 | [0x56] = {"add", five, reg, imm1234_0base}, | |
1329 | [0x57] = {"add", five, reg, imm1234_0base}, | |
1330 | [0x58] = {"and", three, reg, imm1234_8base}, | |
1331 | [0x59] = {"and", three, reg, imm1234_8base}, | |
1332 | [0x5a] = {"and", three, reg, imm1234_8base}, | |
1333 | [0x5b] = {"and", three, reg, imm1234_8base}, | |
1334 | [0x5c] = {"and", two, reg, imm1234_8base}, | |
1335 | [0x5d] = {"and", two, reg, imm1234_8base}, | |
1336 | [0x5e] = {"and", five, reg, imm1234_8base}, | |
1337 | [0x5f] = {"and", five, reg, imm1234_8base}, | |
1338 | [0x60] = {"add", opr_n_bytes_p1, reg, opr_decode}, | |
1339 | [0x61] = {"add", opr_n_bytes_p1, reg, opr_decode}, | |
1340 | [0x62] = {"add", opr_n_bytes_p1, reg, opr_decode}, | |
1341 | [0x63] = {"add", opr_n_bytes_p1, reg, opr_decode}, | |
1342 | [0x64] = {"add", opr_n_bytes_p1, reg, opr_decode}, | |
1343 | [0x65] = {"add", opr_n_bytes_p1, reg, opr_decode}, | |
1344 | [0x66] = {"add", opr_n_bytes_p1, reg, opr_decode}, | |
1345 | [0x67] = {"add", opr_n_bytes_p1, reg, opr_decode}, | |
1346 | [0x68] = {"and", opr_n_bytes_p1, reg, opr_decode}, | |
1347 | [0x69] = {"and", opr_n_bytes_p1, reg, opr_decode}, | |
1348 | [0x6a] = {"and", opr_n_bytes_p1, reg, opr_decode}, | |
1349 | [0x6b] = {"and", opr_n_bytes_p1, reg, opr_decode}, | |
1350 | [0x6c] = {"and", opr_n_bytes_p1, reg, opr_decode}, | |
1351 | [0x6d] = {"and", opr_n_bytes_p1, reg, opr_decode}, | |
1352 | [0x6e] = {"and", opr_n_bytes_p1, reg, opr_decode}, | |
1353 | [0x6f] = {"and", opr_n_bytes_p1, reg, opr_decode}, | |
1354 | [0x70] = {"sub", three, reg, imm1234_0base}, | |
1355 | [0x71] = {"sub", three, reg, imm1234_0base}, | |
1356 | [0x72] = {"sub", three, reg, imm1234_0base}, | |
1357 | [0x73] = {"sub", three, reg, imm1234_0base}, | |
1358 | [0x74] = {"sub", two, reg, imm1234_0base}, | |
1359 | [0x75] = {"sub", two, reg, imm1234_0base}, | |
1360 | [0x76] = {"sub", five, reg, imm1234_0base}, | |
1361 | [0x77] = {"sub", five, reg, imm1234_0base}, | |
1362 | [0x78] = {"or", three, reg, imm1234_8base}, | |
1363 | [0x79] = {"or", three, reg, imm1234_8base}, | |
1364 | [0x7a] = {"or", three, reg, imm1234_8base}, | |
1365 | [0x7b] = {"or", three, reg, imm1234_8base}, | |
1366 | [0x7c] = {"or", two, reg, imm1234_8base}, | |
1367 | [0x7d] = {"or", two, reg, imm1234_8base}, | |
1368 | [0x7e] = {"or", five, reg, imm1234_8base}, | |
1369 | [0x7f] = {"or", five, reg, imm1234_8base}, | |
1370 | [0x80] = {"sub", opr_n_bytes_p1, reg, opr_decode}, | |
1371 | [0x81] = {"sub", opr_n_bytes_p1, reg, opr_decode}, | |
1372 | [0x82] = {"sub", opr_n_bytes_p1, reg, opr_decode}, | |
1373 | [0x83] = {"sub", opr_n_bytes_p1, reg, opr_decode}, | |
1374 | [0x84] = {"sub", opr_n_bytes_p1, reg, opr_decode}, | |
1375 | [0x85] = {"sub", opr_n_bytes_p1, reg, opr_decode}, | |
1376 | [0x86] = {"sub", opr_n_bytes_p1, reg, opr_decode}, | |
1377 | [0x87] = {"sub", opr_n_bytes_p1, reg, opr_decode}, | |
1378 | [0x88] = {"or", opr_n_bytes_p1, reg, opr_decode}, | |
1379 | [0x89] = {"or", opr_n_bytes_p1, reg, opr_decode}, | |
1380 | [0x8a] = {"or", opr_n_bytes_p1, reg, opr_decode}, | |
1381 | [0x8b] = {"or", opr_n_bytes_p1, reg, opr_decode}, | |
1382 | [0x8c] = {"or", opr_n_bytes_p1, reg, opr_decode}, | |
1383 | [0x8d] = {"or", opr_n_bytes_p1, reg, opr_decode}, | |
1384 | [0x8e] = {"or", opr_n_bytes_p1, reg, opr_decode}, | |
1385 | [0x8f] = {"or", opr_n_bytes_p1, reg, opr_decode}, | |
1386 | [0x90] = {"ld", three, reg, imm1234_0base}, | |
1387 | [0x91] = {"ld", three, reg, imm1234_0base}, | |
1388 | [0x92] = {"ld", three, reg, imm1234_0base}, | |
1389 | [0x93] = {"ld", three, reg, imm1234_0base}, | |
1390 | [0x94] = {"ld", two, reg, imm1234_0base}, | |
1391 | [0x95] = {"ld", two, reg, imm1234_0base}, | |
1392 | [0x96] = {"ld", five, reg, imm1234_0base}, | |
1393 | [0x97] = {"ld", five, reg, imm1234_0base}, | |
1394 | [0x98] = {"ld", four, reg_xy, imm1234_0base}, | |
1395 | [0x99] = {"ld", four, reg_xy, imm1234_0base}, | |
1396 | [0x9a] = {"clr", single, reg_xy, 0}, | |
1397 | [0x9b] = {"clr", single, reg_xy, 0}, | |
1398 | [0x9c] = {"inc.b", opr_n_bytes_p1, 0, opr_decode}, | |
1399 | [0x9d] = {"inc.w", opr_n_bytes_p1, 0, opr_decode}, | |
1400 | [0x9e] = {"tfr", two, tfr, NULL}, | |
1401 | [0x9f] = {"inc.l", opr_n_bytes_p1, 0, opr_decode}, | |
1402 | [0xa0] = {"ld", opr_n_bytes_p1, reg, opr_decode}, | |
1403 | [0xa1] = {"ld", opr_n_bytes_p1, reg, opr_decode}, | |
1404 | [0xa2] = {"ld", opr_n_bytes_p1, reg, opr_decode}, | |
1405 | [0xa3] = {"ld", opr_n_bytes_p1, reg, opr_decode}, | |
1406 | [0xa4] = {"ld", opr_n_bytes_p1, reg, opr_decode}, | |
1407 | [0xa5] = {"ld", opr_n_bytes_p1, reg, opr_decode}, | |
1408 | [0xa6] = {"ld", opr_n_bytes_p1, reg, opr_decode}, | |
1409 | [0xa7] = {"ld", opr_n_bytes_p1, reg, opr_decode}, | |
1410 | [0xa8] = {"ld", opr_n_bytes_p1, reg_xy, opr_decode}, | |
1411 | [0xa9] = {"ld", opr_n_bytes_p1, reg_xy, opr_decode}, | |
1412 | [0xaa] = {"jmp", opr_n_bytes_p1, opr_decode, 0}, | |
1413 | [0xab] = {"jsr", opr_n_bytes_p1, opr_decode, 0}, | |
1414 | [0xac] = {"dec.b", opr_n_bytes_p1, 0, opr_decode}, | |
1415 | [0xad] = {"dec.w", opr_n_bytes_p1, 0, opr_decode}, | |
1416 | [0xae] = {NULL, two, 0, 0}, /* EXG / SEX */ | |
1417 | [0xaf] = {"dec.l", opr_n_bytes_p1, 0, opr_decode}, | |
1418 | [0xb0] = {"ld", four, reg, ext24_decode}, | |
1419 | [0xb1] = {"ld", four, reg, ext24_decode}, | |
1420 | [0xb2] = {"ld", four, reg, ext24_decode}, | |
1421 | [0xb3] = {"ld", four, reg, ext24_decode}, | |
1422 | [0xb4] = {"ld", four, reg, ext24_decode}, | |
1423 | [0xb5] = {"ld", four, reg, ext24_decode}, | |
1424 | [0xb6] = {"ld", four, reg, ext24_decode}, | |
1425 | [0xb7] = {"ld", four, reg, ext24_decode}, | |
1426 | [0xb8] = {"ld", four, reg_xy, ext24_decode}, | |
1427 | [0xb9] = {"ld", four, reg_xy, ext24_decode}, | |
1428 | [0xba] = {"jmp", four, ext24_decode, 0}, | |
1429 | [0xbb] = {"jsr", four, ext24_decode, 0}, | |
1430 | [0xbc] = {"clr.b", opr_n_bytes_p1, 0, opr_decode}, | |
1431 | [0xbd] = {"clr.w", opr_n_bytes_p1, 0, opr_decode}, | |
1432 | [0xbe] = {"clr.p", opr_n_bytes_p1, 0, opr_decode}, | |
1433 | [0xbf] = {"clr.l", opr_n_bytes_p1, 0, opr_decode}, | |
1434 | [0xc0] = {"st", opr_n_bytes_p1, reg, opr_decode}, | |
1435 | [0xc1] = {"st", opr_n_bytes_p1, reg, opr_decode}, | |
1436 | [0xc2] = {"st", opr_n_bytes_p1, reg, opr_decode}, | |
1437 | [0xc3] = {"st", opr_n_bytes_p1, reg, opr_decode}, | |
1438 | [0xc4] = {"st", opr_n_bytes_p1, reg, opr_decode}, | |
1439 | [0xc5] = {"st", opr_n_bytes_p1, reg, opr_decode}, | |
1440 | [0xc6] = {"st", opr_n_bytes_p1, reg, opr_decode}, | |
1441 | [0xc7] = {"st", opr_n_bytes_p1, reg, opr_decode}, | |
1442 | [0xc8] = {"st", opr_n_bytes_p1, reg_xy, opr_decode}, | |
1443 | [0xc9] = {"st", opr_n_bytes_p1, reg_xy, opr_decode}, | |
1444 | [0xca] = {"ld", three, reg_xy, ld_18bit_decode}, | |
1445 | [0xcb] = {"ld", three, reg_xy, ld_18bit_decode}, | |
1446 | [0xcc] = {"com.b", opr_n_bytes_p1, NULL, opr_decode}, | |
1447 | [0xcd] = {"com.w", opr_n_bytes_p1, NULL, opr_decode}, | |
1448 | [0xce] = {"andcc", two, imm1, 0}, | |
1449 | [0xcf] = {"com.l", opr_n_bytes_p1, NULL, opr_decode}, | |
1450 | [0xd0] = {"st", four, reg, ext24_decode}, | |
1451 | [0xd1] = {"st", four, reg, ext24_decode}, | |
1452 | [0xd2] = {"st", four, reg, ext24_decode}, | |
1453 | [0xd3] = {"st", four, reg, ext24_decode}, | |
1454 | [0xd4] = {"st", four, reg, ext24_decode}, | |
1455 | [0xd5] = {"st", four, reg, ext24_decode}, | |
1456 | [0xd6] = {"st", four, reg, ext24_decode}, | |
1457 | [0xd7] = {"st", four, reg, ext24_decode}, | |
1458 | [0xd8] = {"st", four, reg_xy, ext24_decode}, | |
1459 | [0xd9] = {"st", four, reg_xy, ext24_decode}, | |
1460 | [0xda] = {"ld", three, reg_xy, ld_18bit_decode}, | |
1461 | [0xdb] = {"ld", three, reg_xy, ld_18bit_decode}, | |
1462 | [0xdc] = {"neg.b", opr_n_bytes_p1, NULL, opr_decode}, | |
1463 | [0xdd] = {"neg.w", opr_n_bytes_p1, NULL, opr_decode}, | |
1464 | [0xde] = {"orcc", two, imm1, 0}, | |
1465 | [0xdf] = {"neg.l", opr_n_bytes_p1, NULL, opr_decode}, | |
1466 | [0xe0] = {"cmp", three, reg, imm1234_0base}, | |
1467 | [0xe1] = {"cmp", three, reg, imm1234_0base}, | |
1468 | [0xe2] = {"cmp", three, reg, imm1234_0base}, | |
1469 | [0xe3] = {"cmp", three, reg, imm1234_0base}, | |
1470 | [0xe4] = {"cmp", two, reg, imm1234_0base}, | |
1471 | [0xe5] = {"cmp", two, reg, imm1234_0base}, | |
1472 | [0xe6] = {"cmp", five, reg, imm1234_0base}, | |
1473 | [0xe7] = {"cmp", five, reg, imm1234_0base}, | |
1474 | [0xe8] = {"cmp", four, reg_xy, imm1234_0base}, | |
1475 | [0xe9] = {"cmp", four, reg_xy, imm1234_0base}, | |
1476 | [0xea] = {"ld", three, reg_xy, ld_18bit_decode}, | |
1477 | [0xeb] = {"ld", three, reg_xy, ld_18bit_decode}, | |
1478 | [0xec] = {"bclr", bm_n_bytes, bm_decode, 0}, | |
1479 | [0xed] = {"bset", bm_n_bytes, bm_decode, 0}, | |
1480 | [0xee] = {"btgl", bm_n_bytes, bm_decode, 0}, | |
1481 | [0xef] = {"!!invalid!!", NULL, NULL, NULL}, /* SPARE */ | |
1482 | [0xf0] = {"cmp", opr_n_bytes_p1, reg, opr_decode}, | |
1483 | [0xf1] = {"cmp", opr_n_bytes_p1, reg, opr_decode}, | |
1484 | [0xf2] = {"cmp", opr_n_bytes_p1, reg, opr_decode}, | |
1485 | [0xf3] = {"cmp", opr_n_bytes_p1, reg, opr_decode}, | |
1486 | [0xf4] = {"cmp", opr_n_bytes_p1, reg, opr_decode}, | |
1487 | [0xf5] = {"cmp", opr_n_bytes_p1, reg, opr_decode}, | |
1488 | [0xf6] = {"cmp", opr_n_bytes_p1, reg, opr_decode}, | |
1489 | [0xf7] = {"cmp", opr_n_bytes_p1, reg, opr_decode}, | |
1490 | [0xf8] = {"cmp", opr_n_bytes_p1, reg_xy, opr_decode}, | |
1491 | [0xf9] = {"cmp", opr_n_bytes_p1, reg_xy, opr_decode}, | |
1492 | [0xfa] = {"ld", three, reg_xy, ld_18bit_decode}, | |
1493 | [0xfb] = {"ld", three, reg_xy, ld_18bit_decode}, | |
1494 | [0xfc] = {"cmp", single, cmp_xy, 0}, | |
1495 | [0xfd] = {"sub", single, sub_d6_x_y, 0}, | |
1496 | [0xfe] = {"sub", single, sub_d6_y_x, 0}, | |
1497 | [0xff] = {"swi", single, 0, 0} | |
1498 | }; | |
1499 | ||
1500 | ||
1501 | static const char *oprregs1[] = | |
1502 | { | |
1503 | "d3", "d2", "d1", "d0", "ccl", "cch" | |
1504 | }; | |
1505 | ||
1506 | static const char *oprregs2[] = | |
1507 | { | |
1508 | "y", "x", "d7", "d6", "d5", "d4" | |
1509 | }; | |
1510 | ||
1511 | ||
1512 | \f | |
1513 | ||
1514 | enum MUL_MODE | |
1515 | { | |
1516 | MUL_REG_REG, | |
1517 | MUL_REG_OPR, | |
1518 | MUL_REG_IMM, | |
1519 | MUL_OPR_OPR | |
1520 | }; | |
1521 | ||
1522 | struct mb | |
1523 | { | |
1524 | uint8_t mask; | |
1525 | uint8_t value; | |
1526 | enum MUL_MODE mode; | |
1527 | }; | |
1528 | ||
1529 | static const struct mb mul_table[] = { | |
1530 | {0x40, 0x00, MUL_REG_REG}, | |
1531 | ||
1532 | {0x47, 0x40, MUL_REG_OPR}, | |
1533 | {0x47, 0x41, MUL_REG_OPR}, | |
1534 | {0x47, 0x43, MUL_REG_OPR}, | |
1535 | ||
1536 | {0x47, 0x44, MUL_REG_IMM}, | |
1537 | {0x47, 0x45, MUL_REG_IMM}, | |
1538 | {0x47, 0x47, MUL_REG_IMM}, | |
1539 | ||
1540 | {0x43, 0x42, MUL_OPR_OPR}, | |
1541 | }; | |
1542 | ||
1543 | static void | |
1544 | mul_decode (bfd_vma memaddr, struct disassemble_info* info) | |
1545 | { | |
1546 | uint8_t mb; | |
1547 | int status = read_memory (memaddr, &mb, 1, info); | |
1548 | if (status < 0) | |
1549 | return; | |
1550 | ||
1551 | ||
1552 | uint8_t byte; | |
1553 | status = read_memory (memaddr - 1, &byte, 1, info); | |
1554 | if (status < 0) | |
1555 | return; | |
1556 | ||
1557 | (*info->fprintf_func) (info->stream, "%c", (mb & 0x80) ? 's' : 'u'); | |
1558 | ||
1559 | enum MUL_MODE mode = -1; | |
1560 | size_t i; | |
1561 | for (i = 0; i < sizeof (mul_table) / sizeof (mul_table[0]); ++i) | |
1562 | { | |
1563 | const struct mb *mm = mul_table + i; | |
1564 | if ((mb & mm->mask) == mm->value) | |
1565 | { | |
1566 | mode = mm->mode; | |
1567 | break; | |
1568 | } | |
1569 | } | |
1570 | ||
1571 | switch (mode) | |
1572 | { | |
1573 | case MUL_REG_REG: | |
1574 | break; | |
1575 | case MUL_OPR_OPR: | |
1576 | { | |
1577 | int size1 = (mb & 0x30) >> 4; | |
1578 | int size2 = (mb & 0x0c) >> 2; | |
1579 | (*info->fprintf_func) (info->stream, ".%c%c", | |
1580 | shift_size_table [size1], | |
1581 | shift_size_table [size2]); | |
1582 | } | |
1583 | break; | |
1584 | default: | |
1585 | { | |
1586 | int size = (mb & 0x3); | |
1587 | (*info->fprintf_func) (info->stream, ".%c", shift_size_table [size]); | |
1588 | } | |
1589 | break; | |
1590 | } | |
1591 | ||
1592 | operand_separator (info); | |
1593 | (*info->fprintf_func) (info->stream, "%s", registers[byte & 0x7].name); | |
1594 | ||
1595 | switch (mode) | |
1596 | { | |
1597 | case MUL_REG_REG: | |
1598 | case MUL_REG_IMM: | |
1599 | case MUL_REG_OPR: | |
1600 | operand_separator (info); | |
1601 | (*info->fprintf_func) (info->stream, "%s", registers[(mb & 0x38) >> 3].name); | |
1602 | break; | |
1603 | default: | |
1604 | break; | |
1605 | } | |
1606 | ||
1607 | switch (mode) | |
1608 | { | |
1609 | case MUL_REG_IMM: | |
1610 | operand_separator (info); | |
1611 | int size = (mb & 0x3); | |
1612 | uint32_t imm = decode_signed_value (memaddr + 1, info, size + 1); | |
1613 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
1614 | break; | |
1615 | case MUL_REG_REG: | |
1616 | operand_separator (info); | |
1617 | (*info->fprintf_func) (info->stream, "%s", registers[mb & 0x07].name); | |
1618 | break; | |
1619 | case MUL_REG_OPR: | |
1620 | opr_decode (memaddr + 1, info); | |
1621 | break; | |
1622 | case MUL_OPR_OPR: | |
1623 | { | |
1624 | int first = opr_n_bytes (memaddr + 1, info); | |
1625 | opr_decode (memaddr + 1, info); | |
1626 | opr_decode (memaddr + first + 1, info); | |
1627 | break; | |
1628 | } | |
1629 | } | |
1630 | } | |
1631 | ||
1632 | ||
1633 | static int | |
1634 | mul_n_bytes (bfd_vma memaddr, struct disassemble_info* info) | |
1635 | { | |
1636 | int nx = 2; | |
1637 | uint8_t mb; | |
1638 | int status = read_memory (memaddr, &mb, 1, info); | |
1639 | if (status < 0) | |
1640 | return 0; | |
1641 | ||
1642 | enum MUL_MODE mode = -1; | |
1643 | size_t i; | |
1644 | for (i = 0; i < sizeof (mul_table) / sizeof (mul_table[0]); ++i) | |
1645 | { | |
1646 | const struct mb *mm = mul_table + i; | |
1647 | if ((mb & mm->mask) == mm->value) | |
1648 | { | |
1649 | mode = mm->mode; | |
1650 | break; | |
1651 | } | |
1652 | } | |
1653 | ||
1654 | int size = (mb & 0x3) + 1; | |
1655 | ||
1656 | switch (mode) | |
1657 | { | |
1658 | case MUL_REG_IMM: | |
1659 | nx += size; | |
1660 | break; | |
1661 | case MUL_REG_REG: | |
1662 | break; | |
1663 | case MUL_REG_OPR: | |
1664 | nx += opr_n_bytes (memaddr + 1, info); | |
1665 | break; | |
1666 | case MUL_OPR_OPR: | |
1667 | { | |
1668 | int first = opr_n_bytes (memaddr + nx - 1, info); | |
1669 | nx += first; | |
1670 | int second = opr_n_bytes (memaddr + nx - 1, info); | |
1671 | nx += second; | |
1672 | } | |
1673 | break; | |
1674 | } | |
1675 | ||
1676 | return nx; | |
1677 | } | |
1678 | ||
1679 | \f | |
1680 | enum BM_MODE { | |
1681 | BM_REG_IMM, | |
1682 | BM_RESERVED0, | |
1683 | BM_OPR_B, | |
1684 | BM_OPR_W, | |
1685 | BM_OPR_L, | |
1686 | BM_OPR_REG, | |
1687 | BM_RESERVED1 | |
1688 | }; | |
1689 | ||
1690 | struct bm | |
1691 | { | |
1692 | uint8_t mask; | |
1693 | uint8_t value; | |
1694 | enum BM_MODE mode; | |
1695 | }; | |
1696 | ||
1697 | static const struct bm bm_table[] = { | |
1698 | { 0xC6, 0x04, BM_REG_IMM}, | |
1699 | { 0x84, 0x00, BM_REG_IMM}, | |
1700 | { 0x06, 0x06, BM_REG_IMM}, | |
1701 | { 0xC6, 0x44, BM_RESERVED0}, | |
1702 | // 00 | |
1703 | { 0x8F, 0x80, BM_OPR_B}, | |
1704 | { 0x8E, 0x82, BM_OPR_W}, | |
1705 | { 0x8C, 0x88, BM_OPR_L}, | |
1706 | ||
1707 | { 0x83, 0x81, BM_OPR_REG}, | |
1708 | { 0x87, 0x84, BM_RESERVED1}, | |
1709 | }; | |
1710 | ||
1711 | static void | |
1712 | bm_decode (bfd_vma memaddr, struct disassemble_info* info) | |
1713 | { | |
1714 | uint8_t bm; | |
1715 | int status = read_memory (memaddr, &bm, 1, info); | |
1716 | if (status < 0) | |
1717 | return; | |
1718 | ||
1719 | size_t i; | |
1720 | enum BM_MODE mode = -1; | |
1721 | for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i) | |
1722 | { | |
1723 | const struct bm *bme = bm_table + i; | |
1724 | if ((bm & bme->mask) == bme->value) | |
1725 | { | |
1726 | mode = bme->mode; | |
1727 | break; | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | switch (mode) | |
1732 | { | |
1733 | case BM_REG_IMM: | |
1734 | operand_separator (info); | |
1735 | (*info->fprintf_func) (info->stream, "%s", registers[bm & 0x07].name); | |
1736 | break; | |
1737 | case BM_OPR_B: | |
1738 | (*info->fprintf_func) (info->stream, ".%c", 'b'); | |
1739 | opr_decode (memaddr + 1, info); | |
1740 | break; | |
1741 | case BM_OPR_W: | |
1742 | (*info->fprintf_func) (info->stream, ".%c", 'w'); | |
1743 | opr_decode (memaddr + 1, info); | |
1744 | break; | |
1745 | case BM_OPR_L: | |
1746 | (*info->fprintf_func) (info->stream, ".%c", 'l'); | |
1747 | opr_decode (memaddr + 1, info); | |
1748 | break; | |
1749 | case BM_OPR_REG: | |
1750 | { | |
1751 | uint8_t xb; | |
1752 | read_memory (memaddr + 1, &xb, 1, info); | |
1753 | /* Don't emit a size suffix for register operands */ | |
1754 | if ((xb & 0xF8) != 0xB8) | |
1755 | (*info->fprintf_func) (info->stream, ".%c", shift_size_table[(bm & 0x0c) >> 2]); | |
1756 | opr_decode (memaddr + 1, info); | |
1757 | } | |
1758 | break; | |
1759 | case BM_RESERVED0: | |
1760 | case BM_RESERVED1: | |
1761 | assert (0); | |
1762 | break; | |
1763 | } | |
1764 | ||
1765 | uint8_t imm = 0; | |
1766 | operand_separator (info); | |
1767 | switch (mode) | |
1768 | { | |
1769 | case BM_REG_IMM: | |
1770 | { | |
1771 | imm = (bm & 0xF8) >> 3; | |
1772 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
1773 | } | |
1774 | break; | |
1775 | case BM_OPR_L: | |
1776 | imm |= (bm & 0x03) << 3; | |
1777 | /* fallthrough */ | |
1778 | case BM_OPR_W: | |
1779 | imm |= (bm & 0x01) << 3; | |
1780 | /* fallthrough */ | |
1781 | case BM_OPR_B: | |
1782 | imm |= (bm & 0x70) >> 4; | |
1783 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
1784 | break; | |
1785 | case BM_OPR_REG: | |
1786 | (*info->fprintf_func) (info->stream, "%s", registers[(bm & 0x70) >> 4].name); | |
1787 | break; | |
1788 | case BM_RESERVED0: | |
1789 | case BM_RESERVED1: | |
1790 | assert (0); | |
1791 | break; | |
1792 | } | |
1793 | } | |
1794 | ||
1795 | ||
1796 | static void | |
1797 | bm_rel_decode (bfd_vma memaddr, struct disassemble_info* info) | |
1798 | { | |
1799 | uint8_t bm; | |
1800 | int status = read_memory (memaddr, &bm, 1, info); | |
1801 | if (status < 0) | |
1802 | return; | |
1803 | ||
1804 | size_t i; | |
1805 | enum BM_MODE mode = -1; | |
1806 | for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i) | |
1807 | { | |
1808 | const struct bm *bme = bm_table + i; | |
1809 | if ((bm & bme->mask) == bme->value) | |
1810 | { | |
1811 | mode = bme->mode; | |
1812 | break; | |
1813 | } | |
1814 | } | |
1815 | ||
1816 | switch (mode) | |
1817 | { | |
1818 | case BM_REG_IMM: | |
1819 | break; | |
1820 | case BM_OPR_B: | |
1821 | (*info->fprintf_func) (info->stream, ".%c", 'b'); | |
1822 | break; | |
1823 | case BM_OPR_W: | |
1824 | (*info->fprintf_func) (info->stream, ".%c", 'w'); | |
1825 | break; | |
1826 | case BM_OPR_L: | |
1827 | (*info->fprintf_func) (info->stream, ".%c", 'l'); | |
1828 | break; | |
1829 | case BM_OPR_REG: | |
1830 | { | |
1831 | uint8_t xb; | |
1832 | read_memory (memaddr + 1, &xb, 1, info); | |
1833 | /* Don't emit a size suffix for register operands */ | |
1834 | if ((xb & 0xF8) != 0xB8) | |
1835 | (*info->fprintf_func) (info->stream, ".%c", | |
1836 | shift_size_table[(bm & 0x0C) >> 2]); | |
1837 | } | |
1838 | break; | |
1839 | case BM_RESERVED0: | |
1840 | case BM_RESERVED1: | |
1841 | assert (0); | |
1842 | break; | |
1843 | } | |
1844 | ||
1845 | int n = 1; | |
1846 | switch (mode) | |
1847 | { | |
1848 | case BM_REG_IMM: | |
1849 | operand_separator (info); | |
1850 | (*info->fprintf_func) (info->stream, "%s", registers[bm & 0x07].name); | |
1851 | break; | |
1852 | case BM_OPR_B: | |
1853 | case BM_OPR_W: | |
1854 | case BM_OPR_L: | |
1855 | opr_decode (memaddr + 1, info); | |
1856 | n = 1 + opr_n_bytes (memaddr + 1, info); | |
1857 | break; | |
1858 | case BM_OPR_REG: | |
1859 | opr_decode (memaddr + 1, info); | |
1860 | break; | |
1861 | case BM_RESERVED0: | |
1862 | case BM_RESERVED1: | |
1863 | assert (0); | |
1864 | break; | |
1865 | } | |
1866 | ||
1867 | ||
1868 | int imm = 0; | |
1869 | operand_separator (info); | |
1870 | switch (mode) | |
1871 | { | |
1872 | case BM_OPR_L: | |
1873 | imm |= (bm & 0x02) << 3; | |
1874 | /* fall through */ | |
1875 | case BM_OPR_W: | |
1876 | imm |= (bm & 0x01) << 3; | |
1877 | /* fall through */ | |
1878 | case BM_OPR_B: | |
1879 | imm |= (bm & 0x70) >> 4; | |
1880 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
1881 | break; | |
1882 | case BM_REG_IMM: | |
1883 | imm = (bm & 0xF8) >> 3; | |
1884 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
1885 | break; | |
1886 | case BM_RESERVED0: | |
1887 | case BM_RESERVED1: | |
1888 | assert (0); | |
1889 | break; | |
1890 | case BM_OPR_REG: | |
1891 | (*info->fprintf_func) (info->stream, "%s", registers[(bm & 0x70) >> 4].name); | |
1892 | n += opr_n_bytes (memaddr + 1, info); | |
1893 | break; | |
1894 | } | |
1895 | ||
1896 | rel_15_7 (memaddr + n, info, n + 1); | |
1897 | } | |
1898 | ||
1899 | static int | |
1900 | bm_n_bytes (bfd_vma memaddr, struct disassemble_info* info) | |
1901 | { | |
1902 | uint8_t bm; | |
1903 | int status = read_memory (memaddr, &bm, 1, info); | |
1904 | if (status < 0) | |
1905 | return status; | |
1906 | ||
1907 | size_t i; | |
1908 | enum BM_MODE mode = -1; | |
1909 | for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i) | |
1910 | { | |
1911 | const struct bm *bme = bm_table + i; | |
1912 | if ((bm & bme->mask) == bme->value) | |
1913 | { | |
1914 | mode = bme->mode; | |
1915 | break; | |
1916 | } | |
1917 | } | |
1918 | ||
1919 | int n = 2; | |
1920 | switch (mode) | |
1921 | { | |
1922 | case BM_REG_IMM: | |
1923 | break; | |
1924 | ||
1925 | case BM_OPR_B: | |
1926 | case BM_OPR_W: | |
1927 | case BM_OPR_L: | |
1928 | n += opr_n_bytes (memaddr + 1, info); | |
1929 | break; | |
1930 | case BM_OPR_REG: | |
1931 | n += opr_n_bytes (memaddr + 1, info); | |
1932 | break; | |
1933 | default: | |
1934 | break; | |
1935 | } | |
1936 | ||
1937 | return n; | |
1938 | } | |
1939 | ||
1940 | static int | |
1941 | bm_rel_n_bytes (bfd_vma memaddr, struct disassemble_info* info) | |
1942 | { | |
1943 | int n = 1 + bm_n_bytes (memaddr, info); | |
1944 | ||
1945 | bfd_byte rb; | |
1946 | int status = read_memory (memaddr + n - 2, &rb, 1, info); | |
1947 | if (status != 0) | |
1948 | return status; | |
1949 | ||
1950 | if (rb & 0x80) | |
1951 | n++; | |
1952 | ||
1953 | return n; | |
1954 | } | |
1955 | ||
1956 | ||
1957 | \f | |
1958 | ||
1959 | ||
1960 | /* shift direction */ | |
1961 | enum SB_DIR | |
1962 | { | |
1963 | SB_LEFT, | |
1964 | SB_RIGHT | |
1965 | }; | |
1966 | ||
1967 | enum SB_TYPE | |
1968 | { | |
1969 | SB_ARITHMETIC, | |
1970 | SB_LOGICAL | |
1971 | }; | |
1972 | ||
1973 | ||
1974 | enum SB_MODE | |
1975 | { | |
1976 | SB_REG_REG_N_EFF, | |
1977 | SB_REG_REG_N, | |
1978 | SB_REG_OPR_EFF, | |
1979 | SB_ROT, | |
1980 | SB_REG_OPR_OPR, | |
1981 | SB_OPR_N | |
1982 | }; | |
1983 | ||
1984 | struct sb | |
1985 | { | |
1986 | uint8_t mask; | |
1987 | uint8_t value; | |
1988 | enum SB_MODE mode; | |
1989 | }; | |
1990 | ||
1991 | static const struct sb sb_table[] = { | |
1992 | {0x30, 0x00, SB_REG_REG_N_EFF}, | |
1993 | {0x30, 0x10, SB_REG_REG_N}, | |
1994 | {0x34, 0x20, SB_REG_OPR_EFF}, | |
1995 | {0x34, 0x24, SB_ROT}, | |
1996 | {0x34, 0x30, SB_REG_OPR_OPR}, | |
1997 | {0x34, 0x34, SB_OPR_N}, | |
1998 | }; | |
1999 | ||
2000 | static int | |
2001 | shift_n_bytes (bfd_vma memaddr, struct disassemble_info* info) | |
2002 | { | |
2003 | bfd_byte sb; | |
2004 | int status = read_memory (memaddr++, &sb, 1, info); | |
2005 | if (status != 0) | |
2006 | return status; | |
2007 | ||
2008 | size_t i; | |
2009 | enum SB_MODE mode = -1; | |
2010 | for (i = 0; i < sizeof (sb_table) / sizeof (sb_table[0]); ++i) | |
2011 | { | |
2012 | const struct sb *sbe = sb_table + i; | |
2013 | if ((sb & sbe->mask) == sbe->value) | |
2014 | mode = sbe->mode; | |
2015 | } | |
2016 | ||
2017 | switch (mode) | |
2018 | { | |
2019 | case SB_REG_REG_N_EFF: | |
2020 | return 2; | |
2021 | break; | |
2022 | case SB_REG_OPR_EFF: | |
2023 | case SB_ROT: | |
2024 | return 2 + opr_n_bytes (memaddr, info); | |
2025 | break; | |
2026 | case SB_REG_OPR_OPR: | |
2027 | { | |
2028 | int opr1 = opr_n_bytes (memaddr, info); | |
2029 | int opr2 = 0; | |
2030 | if ((sb & 0x30) != 0x20) | |
2031 | opr2 = opr_n_bytes (memaddr + opr1, info); | |
2032 | return 2 + opr1 + opr2; | |
2033 | } | |
2034 | break; | |
2035 | default: | |
2036 | return 3; | |
2037 | } | |
2038 | ||
2039 | /* not reached */ | |
2040 | return -1; | |
2041 | } | |
2042 | \f | |
2043 | ||
2044 | static int | |
2045 | mov_imm_opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info) | |
2046 | { | |
2047 | bfd_byte byte; | |
2048 | int status = read_memory (memaddr - 1, &byte, 1, info); | |
2049 | if (status < 0) | |
2050 | return status; | |
2051 | ||
2052 | int size = byte - 0x0c + 1; | |
2053 | ||
2054 | return size + opr_n_bytes (memaddr + size, info) + 1; | |
2055 | } | |
2056 | ||
2057 | static void | |
2058 | mov_imm_opr (bfd_vma memaddr, struct disassemble_info* info) | |
2059 | { | |
2060 | bfd_byte byte; | |
2061 | int status = read_memory (memaddr - 1, &byte, 1, info); | |
2062 | if (status < 0) | |
2063 | return ; | |
2064 | ||
2065 | int size = byte - 0x0c + 1; | |
2066 | uint32_t imm = decode_signed_value (memaddr, info, size); | |
2067 | ||
2068 | operand_separator (info); | |
2069 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
2070 | opr_decode (memaddr + size, info); | |
2071 | } | |
2072 | ||
2073 | \f | |
2074 | ||
2075 | static void | |
2076 | ld_18bit_decode (bfd_vma memaddr, struct disassemble_info* info) | |
2077 | { | |
2078 | size_t size = 3; | |
2079 | bfd_byte buffer[3]; | |
2080 | int status = read_memory (memaddr, buffer + 1, 2, info); | |
2081 | if (status < 0) | |
2082 | return ; | |
2083 | ||
2084 | ||
2085 | status = read_memory (memaddr - 1, buffer, 1, info); | |
2086 | if (status < 0) | |
2087 | return ; | |
2088 | ||
2089 | buffer[0] = (buffer[0] & 0x30) >> 4; | |
2090 | ||
2091 | size_t i; | |
2092 | uint32_t imm = 0; | |
2093 | for (i = 0; i < size; ++i) | |
2094 | { | |
2095 | imm |= buffer[i] << (8 * (size - i - 1)); | |
2096 | } | |
2097 | ||
2098 | operand_separator (info); | |
2099 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
2100 | } | |
2101 | ||
2102 | \f | |
2103 | ||
2104 | /* Loop Primitives */ | |
2105 | ||
2106 | enum LP_MODE { | |
2107 | LP_REG, | |
2108 | LP_XY, | |
2109 | LP_OPR | |
2110 | }; | |
2111 | ||
2112 | struct lp | |
2113 | { | |
2114 | uint8_t mask; | |
2115 | uint8_t value; | |
2116 | enum LP_MODE mode; | |
2117 | }; | |
2118 | ||
2119 | static const struct lp lp_mode[] = { | |
2120 | {0x08, 0x00, LP_REG}, | |
2121 | {0x0C, 0x08, LP_XY}, | |
2122 | {0x0C, 0x0C, LP_OPR}, | |
2123 | }; | |
2124 | ||
2125 | ||
2126 | static const char *lb_condition[] = | |
2127 | { | |
2128 | "ne", "eq", "pl", "mi", "gt", "le", | |
2129 | "??", "??" | |
2130 | }; | |
2131 | ||
2132 | static int | |
2133 | loop_prim_n_bytes (bfd_vma memaddr, struct disassemble_info* info) | |
2134 | { | |
2135 | int mx = 0; | |
2136 | uint8_t lb; | |
2137 | read_memory (memaddr + mx++, &lb, 1, info); | |
2138 | ||
2139 | enum LP_MODE mode = -1; | |
2140 | size_t i; | |
2141 | for (i = 0; i < sizeof (lp_mode) / sizeof (lp_mode[0]); ++i) | |
2142 | { | |
2143 | const struct lp *pb = lp_mode + i; | |
2144 | if ((lb & pb->mask) == pb->value) | |
2145 | { | |
2146 | mode = pb->mode; | |
2147 | break; | |
2148 | } | |
2149 | } | |
2150 | ||
2151 | if (mode == LP_OPR) | |
2152 | { | |
2153 | mx += opr_n_bytes (memaddr + mx, info) ; | |
2154 | } | |
2155 | ||
2156 | uint8_t rb; | |
2157 | read_memory (memaddr + mx++, &rb, 1, info); | |
2158 | if (rb & 0x80) | |
2159 | mx++; | |
2160 | ||
2161 | return mx + 1; | |
2162 | } | |
2163 | ||
2164 | ||
2165 | \f | |
2166 | ||
2167 | static int | |
2168 | print_insn_exg_sex (bfd_vma memaddr, struct disassemble_info* info) | |
2169 | { | |
2170 | uint8_t eb; | |
2171 | int status = read_memory (memaddr, &eb, 1, info); | |
2172 | if (status < 0) | |
2173 | return -1; | |
2174 | ||
2175 | const struct reg *first = ®isters[(eb & 0xf0) >> 4]; | |
2176 | const struct reg *second = ®isters[(eb & 0xf)]; | |
2177 | ||
2178 | if (first->bytes < second->bytes) | |
2179 | (*info->fprintf_func) (info->stream, "sex"); | |
2180 | else | |
2181 | (*info->fprintf_func) (info->stream, "exg"); | |
2182 | ||
2183 | operand_separator (info); | |
2184 | (*info->fprintf_func) (info->stream, "%s", first->name); | |
2185 | operand_separator (info); | |
2186 | (*info->fprintf_func) (info->stream, "%s", second->name); | |
2187 | return 0; | |
2188 | } | |
2189 | ||
2190 | ||
2191 | ||
2192 | static int | |
2193 | print_insn_loop_primitive (bfd_vma memaddr, struct disassemble_info* info) | |
2194 | { | |
2195 | int offs = 1; | |
2196 | uint8_t lb; | |
2197 | int status = read_memory (memaddr, &lb, 1, info); | |
2198 | ||
2199 | char mnemonic[7]; | |
2200 | int x = 0; | |
2201 | mnemonic[x++] = (lb & 0x80) ? 'd' : 't'; | |
2202 | mnemonic[x++] = 'b'; | |
2203 | stpcpy (mnemonic + x, lb_condition [(lb & 0x70) >> 4]); | |
2204 | x += 2; | |
2205 | ||
2206 | const char *reg = NULL; | |
2207 | enum LP_MODE mode = -1; | |
2208 | size_t i; | |
2209 | for (i = 0; i < sizeof (lp_mode) / sizeof (lp_mode[0]); ++i) | |
2210 | { | |
2211 | const struct lp *pb = lp_mode + i; | |
2212 | if ((lb & pb->mask) == pb->value) | |
2213 | { | |
2214 | mode = pb->mode; | |
2215 | break; | |
2216 | } | |
2217 | } | |
2218 | ||
2219 | switch (mode) | |
2220 | { | |
2221 | case LP_REG: | |
2222 | reg = registers [lb & 0x07].name; | |
2223 | break; | |
2224 | case LP_XY: | |
2225 | reg = (lb & 0x1) ? "y" : "x"; | |
2226 | break; | |
2227 | case LP_OPR: | |
2228 | mnemonic[x++] = '.'; | |
2229 | mnemonic[x++] = shift_size_table [lb & 0x03]; | |
2230 | offs += opr_n_bytes (memaddr + 1, info); | |
2231 | break; | |
2232 | } | |
2233 | ||
2234 | mnemonic[x++] = '\0'; | |
2235 | ||
2236 | (*info->fprintf_func) (info->stream, "%s", mnemonic); | |
2237 | ||
2238 | if (mode == LP_OPR) | |
2239 | opr_decode (memaddr + 1, info); | |
2240 | else | |
2241 | { | |
2242 | operand_separator (info); | |
2243 | (*info->fprintf_func) (info->stream, "%s", reg); | |
2244 | } | |
2245 | ||
2246 | rel_15_7 (memaddr + offs, info, offs + 1); | |
2247 | ||
2248 | return status; | |
2249 | } | |
2250 | ||
2251 | ||
2252 | static int | |
2253 | print_insn_shift (bfd_vma memaddr, struct disassemble_info* info, uint8_t byte) | |
2254 | { | |
2255 | size_t i; | |
2256 | uint8_t sb; | |
2257 | int status = read_memory (memaddr, &sb, 1, info); | |
2258 | if (status < 0) | |
2259 | return status; | |
2260 | ||
2261 | enum SB_DIR dir = (sb & 0x40) ? SB_LEFT : SB_RIGHT; | |
2262 | enum SB_TYPE type = (sb & 0x80) ? SB_ARITHMETIC : SB_LOGICAL; | |
2263 | enum SB_MODE mode = -1; | |
2264 | for (i = 0; i < sizeof (sb_table) / sizeof (sb_table[0]); ++i) | |
2265 | { | |
2266 | const struct sb *sbe = sb_table + i; | |
2267 | if ((sb & sbe->mask) == sbe->value) | |
2268 | mode = sbe->mode; | |
2269 | } | |
2270 | ||
2271 | char mnemonic[6]; | |
2272 | int x = 0; | |
2273 | if (mode == SB_ROT) | |
2274 | { | |
2275 | mnemonic[x++] = 'r'; | |
2276 | mnemonic[x++] = 'o'; | |
2277 | } | |
2278 | else | |
2279 | { | |
2280 | mnemonic[x++] = (type == SB_LOGICAL) ? 'l' : 'a'; | |
2281 | mnemonic[x++] = 's'; | |
2282 | } | |
2283 | ||
2284 | mnemonic[x++] = (dir == SB_LEFT) ? 'l' : 'r'; | |
2285 | ||
2286 | switch (mode) | |
2287 | { | |
2288 | case SB_REG_OPR_EFF: | |
2289 | case SB_ROT: | |
2290 | case SB_REG_OPR_OPR: | |
2291 | mnemonic[x++] = '.'; | |
2292 | mnemonic[x++] = shift_size_table[sb & 0x03]; | |
2293 | break; | |
2294 | case SB_OPR_N: | |
2295 | { | |
2296 | uint8_t xb; | |
2297 | read_memory (memaddr + 1, &xb, 1, info); | |
2298 | /* The size suffix is not printed if the OPR operand refers | |
2299 | directly to a register, because the size is implied by the | |
2300 | size of that register. */ | |
2301 | if ((xb & 0xF8) != 0xB8) | |
2302 | { | |
2303 | mnemonic[x++] = '.'; | |
2304 | mnemonic[x++] = shift_size_table[sb & 0x03]; | |
2305 | } | |
2306 | } | |
2307 | break; | |
2308 | default: | |
2309 | break; | |
2310 | }; | |
2311 | ||
2312 | mnemonic[x++] = '\0'; | |
2313 | ||
2314 | (*info->fprintf_func) (info->stream, "%s", mnemonic); | |
2315 | ||
2316 | /* Destination register */ | |
2317 | switch (mode) | |
2318 | { | |
2319 | case SB_REG_REG_N_EFF: | |
2320 | case SB_REG_REG_N: | |
2321 | case SB_REG_OPR_EFF: | |
2322 | case SB_REG_OPR_OPR: | |
2323 | operand_separator (info); | |
2324 | (*info->fprintf_func) (info->stream, "%s", registers[byte & 0x7].name); | |
2325 | break; | |
2326 | ||
2327 | case SB_ROT: | |
2328 | opr_decode (memaddr + 1, info); | |
2329 | break; | |
2330 | ||
2331 | default: | |
2332 | break; | |
2333 | } | |
2334 | ||
2335 | /* Source register */ | |
2336 | switch (mode) | |
2337 | { | |
2338 | case SB_REG_REG_N_EFF: | |
2339 | case SB_REG_REG_N: | |
2340 | operand_separator (info); | |
2341 | (*info->fprintf_func) (info->stream, "%s", registers[sb & 0x7].name); | |
2342 | break; | |
2343 | ||
2344 | case SB_REG_OPR_OPR: | |
2345 | opr_decode (memaddr + 1, info); | |
2346 | break; | |
2347 | ||
2348 | default: | |
2349 | break; | |
2350 | } | |
2351 | ||
2352 | /* 3rd arg */ | |
2353 | switch (mode) | |
2354 | { | |
2355 | case SB_REG_OPR_EFF: | |
2356 | case SB_OPR_N: | |
2357 | opr_decode (memaddr + 1, info); | |
2358 | break; | |
2359 | ||
2360 | case SB_REG_REG_N: | |
2361 | if (sb & 0x08) | |
2362 | { | |
2363 | operand_separator (info); | |
2364 | if (byte & 0x10) | |
2365 | { | |
2366 | uint8_t xb; | |
2367 | read_memory (memaddr + 1, &xb, 1, info); | |
2368 | int shift = ((sb & 0x08) >> 3) | ((xb & 0x0f) << 1); | |
2369 | (*info->fprintf_func) (info->stream, "#%d", shift); | |
2370 | } | |
2371 | else | |
2372 | { | |
2373 | (*info->fprintf_func) (info->stream, "%s:%d", __FILE__, __LINE__); | |
2374 | } | |
2375 | } | |
2376 | else | |
2377 | { | |
2378 | opr_decode (memaddr + 1, info); | |
2379 | } | |
2380 | break; | |
2381 | case SB_REG_OPR_OPR: | |
2382 | { | |
2383 | uint8_t xb; | |
2384 | int n = opr_n_bytes (memaddr + 1, info); | |
2385 | read_memory (memaddr + 1 + n, &xb, 1, info); | |
2386 | ||
2387 | if ((xb & 0xF0) == 0x70) | |
2388 | { | |
2389 | int imm = xb & 0x0F; | |
2390 | imm <<= 1; | |
2391 | imm |= (sb & 0x08) >> 3; | |
2392 | operand_separator (info); | |
2393 | (*info->fprintf_func) (info->stream, "#%d", imm); | |
2394 | } | |
2395 | else | |
2396 | { | |
2397 | opr_decode (memaddr + 1 + n, info); | |
2398 | } | |
2399 | } | |
2400 | break; | |
2401 | default: | |
2402 | break; | |
2403 | } | |
2404 | ||
2405 | switch (mode) | |
2406 | { | |
2407 | case SB_REG_REG_N_EFF: | |
2408 | case SB_REG_OPR_EFF: | |
2409 | case SB_OPR_N: | |
2410 | operand_separator (info); | |
2411 | (*info->fprintf_func) (info->stream, "#%d", | |
2412 | (sb & 0x08) ? 2 : 1); | |
2413 | break; | |
2414 | ||
2415 | default: | |
2416 | break; | |
2417 | } | |
2418 | ||
2419 | return 0; | |
2420 | } | |
2421 | ||
2422 | int | |
2423 | print_insn_s12z (bfd_vma memaddr, struct disassemble_info* info) | |
2424 | { | |
2425 | bfd_byte byte; | |
2426 | int status = read_memory (memaddr++, &byte, 1, info); | |
2427 | if (status != 0) | |
2428 | return status; | |
2429 | ||
2430 | const struct opcode *opc2 = NULL; | |
2431 | const struct opcode *opc = page1 + byte; | |
2432 | if (opc->mnemonic) | |
2433 | { | |
2434 | (*info->fprintf_func) (info->stream, "%s", opc->mnemonic); | |
2435 | } | |
2436 | else | |
2437 | { | |
2438 | /* The special cases ... */ | |
2439 | switch (byte) | |
2440 | { | |
2441 | case PAGE2_PREBYTE: | |
2442 | { | |
2443 | bfd_byte byte2; | |
2444 | read_memory (memaddr++, &byte2, 1, info); | |
2445 | opc2 = page2 + byte2; | |
2446 | if (opc2->mnemonic) | |
2447 | { | |
2448 | (*info->fprintf_func) (info->stream, "%s", opc2->mnemonic); | |
2449 | ||
2450 | if (opc2->operands) | |
2451 | { | |
2452 | opc2->operands (memaddr, info); | |
2453 | } | |
2454 | ||
2455 | if (opc2->operands2) | |
2456 | { | |
2457 | opc2->operands2 (memaddr, info); | |
2458 | } | |
2459 | } | |
2460 | else if (byte2 >= 0x08 && byte2 <= 0x1F) | |
2461 | { | |
2462 | bfd_byte bb; | |
2463 | read_memory (memaddr, &bb, 1, info); | |
2464 | if (bb & 0x80) | |
2465 | (*info->fprintf_func) (info->stream, "bfins"); | |
2466 | else | |
2467 | (*info->fprintf_func) (info->stream, "bfext"); | |
2468 | ||
2469 | enum BB_MODE mode = -1; | |
2470 | size_t i; | |
2471 | const struct opr_bb *bbs = 0; | |
2472 | for (i = 0; i < sizeof (bb_modes) / sizeof (bb_modes[0]); ++i) | |
2473 | { | |
2474 | bbs = bb_modes + i; | |
2475 | if ((bb & bbs->mask) == bbs->value) | |
2476 | { | |
2477 | mode = bbs->mode; | |
2478 | break; | |
2479 | } | |
2480 | } | |
2481 | ||
2482 | switch (mode) | |
2483 | { | |
2484 | case BB_REG_OPR_REG: | |
2485 | case BB_REG_OPR_IMM: | |
2486 | case BB_OPR_REG_REG: | |
2487 | case BB_OPR_REG_IMM: | |
2488 | { | |
2489 | int size = (bb >> 2) & 0x03; | |
2490 | (*info->fprintf_func) (info->stream, ".%c", | |
2491 | shift_size_table [size]); | |
2492 | } | |
2493 | break; | |
2494 | default: | |
2495 | break; | |
2496 | } | |
2497 | ||
2498 | int reg1 = byte2 & 0x07; | |
2499 | /* First operand */ | |
2500 | switch (mode) | |
2501 | { | |
2502 | case BB_REG_REG_REG: | |
2503 | case BB_REG_REG_IMM: | |
2504 | case BB_REG_OPR_REG: | |
2505 | case BB_REG_OPR_IMM: | |
2506 | operand_separator (info); | |
2507 | (*info->fprintf_func) (info->stream, "%s", | |
2508 | registers[reg1].name); | |
2509 | break; | |
2510 | case BB_OPR_REG_REG: | |
2511 | opr_decode (memaddr + 1, info); | |
2512 | break; | |
2513 | case BB_OPR_REG_IMM: | |
2514 | opr_decode (memaddr + 2, info); | |
2515 | break; | |
2516 | } | |
2517 | ||
2518 | /* Second operand */ | |
2519 | switch (mode) | |
2520 | { | |
2521 | case BB_REG_REG_REG: | |
2522 | case BB_REG_REG_IMM: | |
2523 | { | |
2524 | int reg_src = (bb >> 2) & 0x07; | |
2525 | operand_separator (info); | |
2526 | (*info->fprintf_func) (info->stream, "%s", | |
2527 | registers[reg_src].name); | |
2528 | } | |
2529 | break; | |
2530 | case BB_OPR_REG_REG: | |
2531 | case BB_OPR_REG_IMM: | |
2532 | { | |
2533 | int reg_src = (byte2 & 0x07); | |
2534 | operand_separator (info); | |
2535 | (*info->fprintf_func) (info->stream, "%s", | |
2536 | registers[reg_src].name); | |
2537 | } | |
2538 | break; | |
2539 | case BB_REG_OPR_REG: | |
2540 | opr_decode (memaddr + 1, info); | |
2541 | break; | |
2542 | case BB_REG_OPR_IMM: | |
2543 | opr_decode (memaddr + 2, info); | |
2544 | break; | |
2545 | } | |
2546 | ||
2547 | /* Third operand */ | |
2548 | operand_separator (info); | |
2549 | switch (mode) | |
2550 | { | |
2551 | case BB_REG_REG_REG: | |
2552 | case BB_OPR_REG_REG: | |
2553 | case BB_REG_OPR_REG: | |
2554 | { | |
2555 | int reg_parm = bb & 0x03; | |
2556 | (*info->fprintf_func) (info->stream, "%s", | |
2557 | registers[reg_parm].name); | |
2558 | } | |
2559 | break; | |
2560 | case BB_REG_REG_IMM: | |
2561 | case BB_OPR_REG_IMM: | |
2562 | case BB_REG_OPR_IMM: | |
2563 | { | |
2564 | bfd_byte i1; | |
2565 | read_memory (memaddr + 1, &i1, 1, info); | |
2566 | int offset = i1 & 0x1f; | |
2567 | int width = bb & 0x03; | |
2568 | width <<= 3; | |
2569 | width |= i1 >> 5; | |
2570 | (*info->fprintf_func) (info->stream, "#%d:%d", width, offset); | |
2571 | } | |
2572 | break; | |
2573 | } | |
2574 | } | |
2575 | } | |
2576 | break; | |
2577 | case 0xae: /* EXG / SEX */ | |
2578 | status = print_insn_exg_sex (memaddr, info); | |
2579 | break; | |
2580 | case 0x0b: /* Loop Primitives TBcc and DBcc */ | |
2581 | status = print_insn_loop_primitive (memaddr, info); | |
2582 | break; | |
2583 | case 0x10: /* shift */ | |
2584 | case 0x11: /* shift */ | |
2585 | case 0x12: /* shift */ | |
2586 | case 0x13: /* shift */ | |
2587 | case 0x14: /* shift */ | |
2588 | case 0x15: /* shift */ | |
2589 | case 0x16: /* shift */ | |
2590 | case 0x17: /* shift */ | |
2591 | status = print_insn_shift (memaddr, info, byte); | |
2592 | break; | |
2593 | case 0x04: /* psh / pul */ | |
2594 | { | |
2595 | read_memory (memaddr, &byte, 1, info); | |
2596 | (*info->fprintf_func) (info->stream, (byte & 0x80) ? "pul" : "psh"); | |
2597 | int bit; | |
2598 | if (byte & 0x40) | |
2599 | { | |
2600 | if ((byte & 0x3F) == 0) | |
2601 | { | |
2602 | operand_separator (info); | |
2603 | (*info->fprintf_func) (info->stream, "%s", "ALL16b"); | |
2604 | } | |
2605 | else | |
2606 | for (bit = 5; bit >= 0; --bit) | |
2607 | { | |
2608 | if (byte & (0x1 << bit)) | |
2609 | { | |
2610 | operand_separator (info); | |
2611 | (*info->fprintf_func) (info->stream, "%s", oprregs2[bit]); | |
2612 | } | |
2613 | } | |
2614 | } | |
2615 | else | |
2616 | { | |
2617 | if ((byte & 0x3F) == 0) | |
2618 | { | |
2619 | operand_separator (info); | |
2620 | (*info->fprintf_func) (info->stream, "%s", "ALL"); | |
2621 | } | |
2622 | else | |
2623 | for (bit = 5; bit >= 0; --bit) | |
2624 | { | |
2625 | if (byte & (0x1 << bit)) | |
2626 | { | |
2627 | operand_separator (info); | |
2628 | (*info->fprintf_func) (info->stream, "%s", oprregs1[bit]); | |
2629 | } | |
2630 | } | |
2631 | } | |
2632 | } | |
2633 | break; | |
2634 | default: | |
2635 | operand_separator (info); | |
2636 | (*info->fprintf_func) (info->stream, "???"); | |
2637 | break; | |
2638 | } | |
2639 | } | |
2640 | ||
2641 | if (opc2 == NULL) | |
2642 | { | |
2643 | if (opc->operands) | |
2644 | { | |
2645 | opc->operands (memaddr, info); | |
2646 | } | |
2647 | ||
2648 | if (opc->operands2) | |
2649 | { | |
2650 | opc->operands2 (memaddr, info); | |
2651 | } | |
2652 | } | |
2653 | ||
2654 | int n = 0; | |
2655 | ||
2656 | /* Opcodes in page2 have an additional byte */ | |
2657 | if (opc2) | |
2658 | n++; | |
2659 | ||
2660 | if (opc2 && opc2->insn_bytes == 0) | |
2661 | return n; | |
2662 | ||
2663 | if (!opc2 && opc->insn_bytes == 0) | |
2664 | return n; | |
2665 | ||
2666 | if (opc2) | |
2667 | n += opc2->insn_bytes (memaddr, info); | |
2668 | else | |
2669 | n += opc->insn_bytes (memaddr, info); | |
2670 | ||
2671 | return n; | |
2672 | } |