Commit | Line | Data |
---|---|---|
7b4ae824 JD |
1 | /* tc-s12z.c -- Assembler code for the Freescale S12Z |
2 | Copyright (C) 2018 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS 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 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, | |
19 | Boston, MA 02110-1301, USA. */ | |
20 | ||
21 | #include "as.h" | |
22 | #include "safe-ctype.h" | |
23 | #include "subsegs.h" | |
24 | #include "dwarf2dbg.h" | |
25 | #include "opcodes/s12z.h" | |
26 | #include <stdint.h> | |
27 | #include <limits.h> | |
28 | #include <stdbool.h> | |
29 | ||
30 | const char comment_chars[] = ";"; | |
31 | ||
32 | const char line_comment_chars[] = "#*"; | |
33 | const char line_separator_chars[] = ""; | |
34 | ||
35 | const char EXP_CHARS[] = "eE"; | |
36 | const char FLT_CHARS[] = "dD"; | |
37 | ||
38 | static char *fail_line_pointer; | |
39 | ||
40 | \f | |
41 | /* Options and initialization. */ | |
42 | ||
43 | const char *md_shortopts = "Sm:"; | |
44 | ||
45 | struct option md_longopts[] = | |
46 | { | |
47 | }; | |
48 | ||
49 | size_t md_longopts_size = sizeof (md_longopts); | |
50 | \f | |
51 | ||
52 | relax_typeS md_relax_table[] = | |
53 | { | |
54 | ||
55 | }; | |
56 | ||
57 | /* This table describes all the machine specific pseudo-ops the assembler | |
58 | has to support. The fields are: | |
59 | pseudo-op name without dot | |
60 | function to call to execute this pseudo-op | |
61 | Integer arg to pass to the function. */ | |
62 | const pseudo_typeS md_pseudo_table[] = | |
63 | { | |
64 | {0, 0, 0} | |
65 | }; | |
66 | \f | |
67 | ||
68 | /* Get the target cpu for the assembler. */ | |
69 | const char * | |
70 | s12z_arch_format (void) | |
71 | { | |
72 | return "elf32-s12z"; | |
73 | } | |
74 | ||
75 | enum bfd_architecture | |
76 | s12z_arch (void) | |
77 | { | |
78 | return bfd_arch_s12z; | |
79 | } | |
80 | ||
81 | int | |
82 | s12z_mach (void) | |
83 | { | |
84 | return 0; | |
85 | } | |
86 | ||
87 | /* Listing header selected according to cpu. */ | |
88 | const char * | |
89 | s12z_listing_header (void) | |
90 | { | |
91 | return "S12Z GAS "; | |
92 | } | |
93 | ||
94 | void | |
95 | md_show_usage (FILE *stream ATTRIBUTE_UNUSED) | |
96 | { | |
97 | } | |
98 | ||
99 | void | |
100 | s12z_print_statistics (FILE *file ATTRIBUTE_UNUSED) | |
101 | { | |
102 | } | |
103 | ||
104 | int | |
105 | md_parse_option (int c ATTRIBUTE_UNUSED, const char *arg ATTRIBUTE_UNUSED) | |
106 | { | |
107 | return 0; | |
108 | } | |
109 | \f | |
110 | symbolS * | |
111 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) | |
112 | { | |
113 | return 0; | |
114 | } | |
115 | ||
116 | const char * | |
117 | md_atof (int type, char *litP, int *sizeP) | |
118 | { | |
119 | return ieee_md_atof (type, litP, sizeP, TRUE); | |
120 | } | |
121 | ||
122 | valueT | |
123 | md_section_align (asection *seg, valueT addr) | |
124 | { | |
125 | int align = bfd_get_section_alignment (stdoutput, seg); | |
126 | return ((addr + (1 << align) - 1) & -(1 << align)); | |
127 | } | |
128 | ||
129 | void | |
130 | md_begin (void) | |
131 | { | |
132 | } | |
133 | ||
134 | void | |
135 | s12z_init_after_args (void) | |
136 | { | |
137 | } | |
138 | \f | |
139 | /* Builtin help. */ | |
140 | ||
141 | ||
142 | static char * | |
143 | skip_whites (char *p) | |
144 | { | |
145 | while (*p == ' ' || *p == '\t') | |
146 | p++; | |
147 | ||
148 | return p; | |
149 | } | |
150 | ||
151 | ||
152 | ||
153 | /* Start a new insn that contains at least 'size' bytes. Record the | |
154 | line information of that insn in the dwarf2 debug sections. */ | |
155 | static char * | |
156 | s12z_new_insn (int size) | |
157 | { | |
158 | char *f = frag_more (size); | |
159 | ||
160 | dwarf2_emit_insn (size); | |
161 | ||
162 | return f; | |
163 | } | |
164 | ||
165 | \f | |
166 | ||
167 | static int lex_reg_name (uint16_t which, int *reg); | |
168 | ||
169 | static int | |
170 | lex_constant (long *v) | |
171 | { | |
172 | char *end = NULL; | |
173 | char *p = input_line_pointer; | |
174 | ||
175 | /* A constant may not have the same value as a register | |
176 | eg: "d6" */ | |
177 | int dummy; | |
178 | if (lex_reg_name (~0, &dummy)) | |
179 | { | |
180 | input_line_pointer = p; | |
181 | return 0; | |
182 | } | |
183 | ||
184 | errno = 0; | |
185 | *v = strtol (p, &end, 0); | |
186 | if (errno == 0 && end != p) | |
187 | { | |
188 | input_line_pointer = end; | |
189 | return 1; | |
190 | } | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
195 | static int | |
196 | lex_match (char x) | |
197 | { | |
198 | char *p = input_line_pointer; | |
199 | if (*p != x) | |
200 | return 0; | |
201 | ||
202 | input_line_pointer++; | |
203 | return 1; | |
204 | } | |
205 | ||
206 | ||
207 | static int | |
208 | lex_expression (expressionS *exp) | |
209 | { | |
210 | char *ilp = input_line_pointer; | |
211 | int dummy; | |
212 | exp->X_op = O_absent; | |
213 | ||
214 | if (lex_match ('#')) | |
215 | goto fail; | |
216 | ||
217 | if (lex_reg_name (~0, &dummy)) | |
218 | goto fail; | |
219 | ||
220 | expression (exp); | |
221 | if (exp->X_op != O_absent) | |
222 | return 1; | |
223 | ||
224 | fail: | |
225 | fail_line_pointer = input_line_pointer; | |
226 | input_line_pointer = ilp; | |
227 | return 0; | |
228 | } | |
229 | ||
230 | /* immediate operand */ | |
231 | static int | |
232 | lex_imm (long *v) | |
233 | { | |
234 | char *ilp = input_line_pointer; | |
235 | ||
236 | if (*input_line_pointer != '#') | |
237 | goto fail; | |
238 | ||
239 | input_line_pointer++; | |
240 | expressionS exp; | |
241 | if (!lex_expression (&exp)) | |
242 | goto fail; | |
243 | ||
244 | if (exp.X_op != O_constant) | |
245 | goto fail; | |
246 | ||
247 | *v = exp.X_add_number; | |
248 | return 1; | |
249 | ||
250 | fail: | |
251 | fail_line_pointer = input_line_pointer; | |
252 | input_line_pointer = ilp; | |
253 | return 0; | |
254 | } | |
255 | ||
256 | /* Short mmediate operand */ | |
257 | static int | |
258 | lex_imm_e4 (long *val) | |
259 | { | |
260 | char *ilp = input_line_pointer; | |
261 | if ((lex_imm (val))) | |
262 | { | |
263 | if ((*val == -1) || (*val > 0 && *val <= 15)) | |
264 | { | |
265 | return 1; | |
266 | } | |
267 | } | |
268 | fail_line_pointer = input_line_pointer; | |
269 | input_line_pointer = ilp; | |
270 | return 0; | |
271 | } | |
272 | ||
273 | static int | |
274 | lex_match_string (const char *s) | |
275 | { | |
276 | char *p = input_line_pointer; | |
277 | while (p != 0 && *p != '\t' && *p != ' ' && *p != '\0') | |
278 | { | |
279 | p++; | |
280 | } | |
281 | ||
282 | size_t len = p - input_line_pointer; | |
283 | if (len != strlen (s)) | |
284 | return 0; | |
285 | ||
286 | if (0 == strncasecmp (s, input_line_pointer, len)) | |
287 | { | |
288 | input_line_pointer = p; | |
289 | return 1; | |
290 | } | |
291 | ||
292 | return 0; | |
293 | } | |
294 | ||
295 | /* Parse a register name. | |
296 | WHICH is a ORwise combination of the registers which are accepted. | |
297 | ~0 accepts all. | |
298 | On success, REG will be filled with the index of the register which | |
299 | was successfully scanned. | |
300 | */ | |
301 | static int | |
302 | lex_reg_name (uint16_t which, int *reg) | |
303 | { | |
304 | char *p = input_line_pointer; | |
305 | while (p != 0 && | |
306 | ((*p >= 'a' && *p <='z') || (*p >= '0' && *p <= '9') || (*p >= 'A' && *p <='Z'))) | |
307 | { | |
308 | p++; | |
309 | } | |
310 | ||
311 | int len = p - input_line_pointer; | |
312 | ||
313 | if (len <= 0) | |
314 | return 0; | |
315 | ||
316 | int i; | |
317 | for (i = 0; i < S12Z_N_REGISTERS; ++i) | |
318 | { | |
319 | gas_assert (registers[i].name); | |
320 | ||
321 | if (0 == strncasecmp (registers[i].name, input_line_pointer, len)) | |
322 | { | |
323 | if ((0x1U << i) & which) | |
324 | { | |
325 | input_line_pointer = p; | |
326 | *reg = i; | |
327 | return 1; | |
328 | } | |
329 | } | |
330 | } | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | static int | |
336 | lex_force_match (char x) | |
337 | { | |
338 | char *p = input_line_pointer; | |
339 | if (*p != x) | |
340 | { | |
341 | as_bad (_("Expecting '%c'"), x); | |
342 | return 0; | |
343 | } | |
344 | ||
345 | input_line_pointer++; | |
346 | return 1; | |
347 | } | |
348 | ||
349 | static int | |
350 | lex_opr (uint8_t *buffer, int *n_bytes, expressionS *exp) | |
351 | { | |
352 | char *ilp = input_line_pointer; | |
353 | uint8_t *xb = buffer; | |
354 | int reg; | |
355 | long imm; | |
356 | exp->X_op = O_absent; | |
357 | *n_bytes = 0; | |
358 | *xb = 0; | |
359 | if (lex_imm_e4 (&imm)) | |
360 | { | |
361 | if (imm > 0) | |
362 | *xb = imm; | |
363 | else | |
364 | *xb = 0; | |
365 | *xb |= 0x70; | |
366 | *n_bytes = 1; | |
367 | return 1; | |
368 | } | |
369 | else if (lex_reg_name (REG_BIT_Dn, ®)) | |
370 | { | |
371 | *xb = reg; | |
372 | *xb |= 0xb8; | |
373 | *n_bytes = 1; | |
374 | return 1; | |
375 | } | |
376 | else if (lex_match ('[')) | |
377 | { | |
378 | if (lex_expression (exp)) | |
379 | { | |
380 | long c = exp->X_add_number; | |
381 | if (lex_match (',')) | |
382 | { | |
383 | if (lex_reg_name (REG_BIT_XYSP, ®)) | |
384 | { | |
385 | int i; | |
386 | if (c <= 255 && c >= -256) | |
387 | { | |
388 | *n_bytes = 2; | |
389 | *xb |= 0xc4; | |
390 | } | |
391 | else | |
392 | { | |
393 | *n_bytes = 4; | |
394 | *xb |= 0xc6; | |
395 | } | |
396 | *xb |= (reg - REG_X) << 4; | |
397 | ||
398 | if (c < 0) | |
399 | *xb |= 0x01; | |
400 | for (i = 1; i < *n_bytes ; ++i) | |
401 | { | |
402 | buffer[i] = c >> (8 * (*n_bytes - i - 1)); | |
403 | } | |
404 | } | |
405 | else | |
406 | { | |
407 | as_bad (_("Bad operand for constant offset")); | |
408 | goto fail; | |
409 | } | |
410 | } | |
411 | else | |
412 | { | |
413 | *xb = 0xfe; | |
414 | *n_bytes = 4; | |
415 | buffer[1] = c >> 16; | |
416 | buffer[2] = c >> 8; | |
417 | buffer[3] = c; | |
418 | } | |
419 | } | |
420 | else if (lex_reg_name (REG_BIT_Dn, ®)) | |
421 | { | |
422 | if (!lex_force_match (',')) | |
423 | goto fail; | |
424 | ||
425 | int reg2; | |
426 | if (lex_reg_name (REG_BIT_XY, ®2)) | |
427 | { | |
428 | *n_bytes = 1; | |
429 | *xb = reg; | |
430 | *xb |= (reg2 - REG_X) << 4; | |
431 | *xb |= 0xc8; | |
432 | } | |
433 | else | |
434 | { | |
435 | as_bad (_("Invalid operand for register offset")); | |
436 | goto fail; | |
437 | } | |
438 | } | |
439 | else | |
440 | { | |
441 | goto fail; | |
442 | } | |
443 | if (!lex_force_match (']')) | |
444 | goto fail; | |
445 | return 1; | |
446 | } | |
447 | else if (lex_match ('(')) | |
448 | { | |
449 | long c; | |
450 | if (lex_constant (&c)) | |
451 | { | |
452 | if (!lex_force_match (',')) | |
453 | goto fail; | |
454 | int reg2; | |
455 | if (lex_reg_name (REG_BIT_XYSP, ®2)) | |
456 | { | |
457 | if (reg2 != REG_P && c >= 0 && c <= 15) | |
458 | { | |
459 | *n_bytes = 1; | |
460 | *xb = 0x40; | |
461 | *xb |= (reg2 - REG_X) << 4; | |
462 | *xb |= c; | |
463 | } | |
464 | else if (c >= -256 && c <= 255) | |
465 | { | |
466 | *n_bytes = 2; | |
467 | *xb = 0xc0; | |
468 | *xb |= (reg2 - REG_X) << 4; | |
469 | if (c < 0) | |
470 | *xb |= 0x01; | |
471 | buffer[1] = c; | |
472 | } | |
473 | else | |
474 | { | |
475 | *n_bytes = 4; | |
476 | *xb = 0xc2; | |
477 | *xb |= (reg2 - REG_X) << 4; | |
478 | buffer[1] = c >> 16; | |
479 | buffer[2] = c >> 8; | |
480 | buffer[3] = c; | |
481 | } | |
482 | } | |
483 | else if (lex_reg_name (REG_BIT_Dn, ®2)) | |
484 | { | |
485 | if (c >= -1 * (long) (0x1u << 17) | |
486 | && | |
487 | c < (long) (0x1u << 17) - 1) | |
488 | { | |
489 | *n_bytes = 3; | |
490 | *xb = 0x80; | |
491 | *xb |= reg2; | |
492 | *xb |= ((c >> 16) & 0x03) << 4; | |
493 | buffer[1] = c >> 8; | |
494 | buffer[2] = c; | |
495 | } | |
496 | else | |
497 | { | |
498 | *n_bytes = 4; | |
499 | *xb = 0xe8; | |
500 | *xb |= reg2; | |
501 | buffer[1] = c >> 16; | |
502 | buffer[2] = c >> 8; | |
503 | buffer[3] = c; | |
504 | } | |
505 | } | |
506 | else | |
507 | { | |
508 | as_bad (_("Bad operand for constant offset")); | |
509 | goto fail; | |
510 | } | |
511 | } | |
512 | else if (lex_reg_name (REG_BIT_Dn, ®)) | |
513 | { | |
514 | if (lex_match (',')) | |
515 | { | |
516 | int reg2; | |
517 | if (lex_reg_name (REG_BIT_XYS, ®2)) | |
518 | { | |
519 | *n_bytes = 1; | |
520 | *xb = 0x88; | |
521 | *xb |= (reg2 - REG_X) << 4; | |
522 | *xb |= reg; | |
523 | } | |
524 | else | |
525 | { | |
526 | as_bad (_("Invalid operand for register offset")); | |
527 | goto fail; | |
528 | } | |
529 | } | |
530 | else | |
531 | { | |
532 | goto fail; | |
533 | } | |
534 | } | |
535 | else if (lex_reg_name (REG_BIT_XYS, ®)) | |
536 | { | |
537 | if (lex_match ('-')) | |
538 | { | |
539 | if (reg == REG_S) | |
540 | { | |
541 | as_bad (_("Invalid register for postdecrement operation")); | |
542 | goto fail; | |
543 | } | |
544 | *n_bytes = 1; | |
545 | if (reg == REG_X) | |
546 | *xb = 0xc7; | |
547 | else if (reg == REG_Y) | |
548 | *xb = 0xd7; | |
549 | } | |
550 | else if (lex_match ('+')) | |
551 | { | |
552 | *n_bytes = 1; | |
553 | if (reg == REG_X) | |
554 | *xb = 0xe7; | |
555 | else if (reg == REG_Y) | |
556 | *xb = 0xf7; | |
557 | else if (reg == REG_S) | |
558 | *xb = 0xff; | |
559 | } | |
560 | else | |
561 | { | |
562 | goto fail; | |
563 | } | |
564 | } | |
565 | else if (lex_match ('+')) | |
566 | { | |
567 | if (lex_reg_name (REG_BIT_XY, ®)) | |
568 | { | |
569 | *n_bytes = 1; | |
570 | if (reg == REG_X) | |
571 | *xb = 0xe3; | |
572 | else if (reg == REG_Y) | |
573 | *xb = 0xf3; | |
574 | } | |
575 | else | |
576 | { | |
577 | as_bad (_("Invalid register for preincrement operation")); | |
578 | goto fail; | |
579 | } | |
580 | } | |
581 | else if (lex_match ('-')) | |
582 | { | |
583 | if (lex_reg_name (REG_BIT_XYS, ®)) | |
584 | { | |
585 | *n_bytes = 1; | |
586 | if (reg == REG_X) | |
587 | *xb = 0xc3; | |
588 | else if (reg == REG_Y) | |
589 | *xb = 0xd3; | |
590 | else if (reg == REG_S) | |
591 | *xb = 0xfb; | |
592 | } | |
593 | else | |
594 | { | |
595 | as_bad (_("Invalid register for predecrement operation")); | |
596 | goto fail; | |
597 | } | |
598 | } | |
599 | else | |
600 | { | |
601 | goto fail; | |
602 | } | |
603 | ||
604 | if (! lex_match (')')) | |
605 | goto fail; | |
606 | return 1; | |
607 | } | |
608 | else if (lex_expression (exp)) | |
609 | { | |
610 | *xb = 0xfa; | |
611 | *n_bytes = 4; | |
612 | buffer[1] = 0; | |
613 | buffer[2] = 0; | |
614 | buffer[3] = 0; | |
615 | if (exp->X_op == O_constant) | |
616 | { | |
617 | if (exp->X_add_number < (0x1U << 14)) | |
618 | { | |
619 | *xb = 0x00; | |
620 | *n_bytes = 2; | |
621 | *xb |= exp->X_add_number >> 8; | |
622 | buffer[1] = exp->X_add_number; | |
623 | } | |
624 | else if (exp->X_add_number < (0x1U << 19)) | |
625 | { | |
626 | *xb = 0xf8; | |
627 | if (exp->X_add_number & (0x1U << 17)) | |
628 | *xb |= 0x04; | |
629 | if (exp->X_add_number & (0x1U << 16)) | |
630 | *xb |= 0x01; | |
631 | *n_bytes = 3; | |
632 | buffer[1] = exp->X_add_number >> 8; | |
633 | buffer[2] = exp->X_add_number; | |
634 | } | |
635 | else | |
636 | { | |
637 | *xb = 0xfa; | |
638 | *n_bytes = 4; | |
639 | buffer[1] = exp->X_add_number >> 16; | |
640 | buffer[2] = exp->X_add_number >> 8; | |
641 | buffer[3] = exp->X_add_number; | |
642 | } | |
643 | } | |
644 | return 1; | |
645 | } | |
646 | ||
647 | fail: | |
648 | fail_line_pointer = input_line_pointer; | |
649 | input_line_pointer = ilp; | |
650 | return 0; | |
651 | } | |
652 | ||
653 | static int | |
654 | lex_offset (long *val) | |
655 | { | |
656 | char *end = NULL; | |
657 | char *p = input_line_pointer; | |
658 | ||
659 | if (*p++ != '*') | |
660 | return 0; | |
661 | ||
662 | if (*p != '+' && *p != '-') | |
663 | return 0; | |
664 | ||
665 | bool negative = (*p == '-'); | |
666 | p++; | |
667 | ||
668 | errno = 0; | |
669 | *val = strtol (p, &end, 0); | |
670 | if (errno == 0) | |
671 | { | |
672 | if (negative) | |
673 | *val *= -1; | |
674 | input_line_pointer = end; | |
675 | return 1; | |
676 | } | |
677 | ||
678 | return 0; | |
679 | } | |
680 | ||
681 | \f | |
682 | ||
683 | struct instruction; | |
684 | ||
685 | typedef int (*parse_operand_func) (const struct instruction *); | |
686 | ||
687 | struct instruction | |
688 | { | |
689 | const char *name; | |
690 | ||
691 | /* The "page" to which the instruction belongs. | |
692 | This is also only a hint. Some instructions might have modes in both | |
693 | pages... */ | |
694 | char page; | |
695 | ||
696 | /* This is a hint - and only a hint - about the opcode of the instruction. | |
697 | The parse_operand_func is free to ignore it. | |
698 | */ | |
699 | uint8_t opc; | |
700 | ||
701 | parse_operand_func parse_operands; | |
702 | ||
703 | /* Some instructions can be encoded with a different opcode */ | |
704 | uint8_t alt_opc; | |
705 | }; | |
706 | ||
707 | static int | |
708 | no_operands (const struct instruction *insn) | |
709 | { | |
710 | if (*input_line_pointer != '\0') | |
711 | { | |
712 | as_bad (_("Garbage at end of instruction")); | |
713 | return 0; | |
714 | } | |
715 | ||
716 | char *f = s12z_new_insn (insn->page); | |
717 | if (insn->page == 2) | |
718 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
719 | ||
720 | number_to_chars_bigendian (f++, insn->opc, 1); | |
721 | ||
722 | return 1; | |
723 | } | |
724 | ||
725 | /* Emit the code for an OPR address mode operand */ | |
726 | static char * | |
727 | emit_opr (char *f, const uint8_t *buffer, int n_bytes, expressionS *exp) | |
728 | { | |
729 | int i; | |
730 | number_to_chars_bigendian (f++, buffer[0], 1); | |
731 | if (exp->X_op != O_absent && exp->X_op != O_constant) | |
732 | { | |
733 | fix_new_exp (frag_now, | |
734 | f - frag_now->fr_literal, | |
735 | 3, | |
736 | exp, | |
737 | FALSE, | |
738 | BFD_RELOC_24); | |
739 | } | |
740 | for (i = 1; i < n_bytes; ++i) | |
741 | number_to_chars_bigendian (f++, buffer[i], 1); | |
742 | ||
743 | return f; | |
744 | } | |
745 | ||
746 | /* Emit the code for a 24 bit direct address operand */ | |
747 | static char * | |
748 | emit_ext24 (char *f, long v) | |
749 | { | |
750 | number_to_chars_bigendian (f, v, 3); | |
751 | ||
752 | return f + 3; | |
753 | } | |
754 | ||
755 | static int | |
756 | opr (const struct instruction *insn) | |
757 | { | |
758 | uint8_t buffer[4]; | |
759 | int n_bytes; | |
760 | expressionS exp; | |
761 | if (lex_opr (buffer, &n_bytes, &exp)) | |
762 | { | |
763 | /* Large constant direct values are more efficiently encoded as ext24 mode. | |
764 | Otherwise a decision has to be deferred to a relax. */ | |
765 | if (exp.X_op == O_constant | |
766 | && buffer[0] == 0xFA | |
767 | && insn->alt_opc != 0) | |
768 | { | |
769 | char *f = s12z_new_insn (4); | |
770 | ||
771 | /* I don't think there are any instances of page 2 opcodes in this case */ | |
772 | gas_assert (insn->page == 1); | |
773 | ||
774 | number_to_chars_bigendian (f++, insn->alt_opc, 1); | |
775 | ||
776 | emit_ext24 (f, exp.X_add_number); | |
777 | } | |
778 | else | |
779 | { | |
780 | char *f = s12z_new_insn (n_bytes + 1); | |
781 | number_to_chars_bigendian (f++, insn->opc, 1); | |
782 | ||
783 | emit_opr (f, buffer, n_bytes, &exp); | |
784 | } | |
785 | return 1; | |
786 | } | |
787 | ||
788 | return 0; | |
789 | } | |
790 | ||
791 | /* Parse a 15 bit offset, as an expression. | |
792 | LONG_DISPLACEMENT will be set to true if the offset is wider than 7 bits. | |
793 | */ | |
794 | static int | |
795 | lex_15_bit_offset (bool *long_displacement, expressionS *exp) | |
796 | { | |
797 | char *ilp = input_line_pointer; | |
798 | ||
799 | long val; | |
800 | if (lex_offset (&val)) | |
801 | { | |
802 | exp->X_op = O_absent; | |
803 | exp->X_add_number = val; | |
804 | } | |
805 | else if (lex_expression (exp)) | |
806 | { | |
807 | if (exp->X_op == O_constant) | |
808 | { | |
809 | val = exp->X_add_number; | |
810 | } | |
811 | else | |
812 | { | |
813 | /* If a symbol was parsed we don't know the displacement. | |
814 | We have to assume it is long, and relax it later if possible. */ | |
815 | *long_displacement = true; | |
816 | return 1; | |
817 | } | |
818 | } | |
819 | else | |
820 | { | |
821 | exp->X_op = O_absent; | |
822 | goto fail; | |
823 | } | |
824 | ||
825 | if (val > 0x3FFF || val < -0x4000) | |
826 | { | |
827 | as_fatal (_("Offset is outside of 15 bit range")); | |
828 | return 0; | |
829 | } | |
830 | ||
831 | *long_displacement = (val > 63 || val < -64); | |
832 | ||
833 | return 1; | |
834 | ||
835 | fail: | |
836 | fail_line_pointer = input_line_pointer; | |
837 | input_line_pointer = ilp; | |
838 | return 0; | |
839 | } | |
840 | ||
841 | static void | |
842 | emit_15_bit_offset (char *f, int where, expressionS *exp) | |
843 | { | |
844 | gas_assert (exp); | |
845 | if (exp->X_op != O_absent && exp->X_op != O_constant) | |
846 | { | |
847 | exp->X_add_number += where; | |
848 | fixS *fix = fix_new_exp (frag_now, | |
849 | f - frag_now->fr_literal, | |
850 | 2, | |
851 | exp, | |
852 | TRUE, | |
853 | BFD_RELOC_16_PCREL); | |
854 | fix->fx_addnumber = where - 2; | |
855 | } | |
856 | else | |
857 | { | |
858 | long val = exp->X_add_number; | |
859 | bool long_displacement = (val > 63 || val < -64); | |
860 | if (long_displacement) | |
861 | val |= 0x8000; | |
862 | else | |
863 | val &= 0x7F; | |
864 | ||
865 | number_to_chars_bigendian (f++, val, long_displacement ? 2 : 1); | |
866 | } | |
867 | } | |
868 | ||
869 | static int | |
870 | rel (const struct instruction *insn) | |
871 | { | |
872 | bool long_displacement; | |
873 | ||
874 | expressionS exp; | |
875 | if (! lex_15_bit_offset (&long_displacement, &exp)) | |
876 | return 0; | |
877 | ||
878 | char *f = s12z_new_insn (long_displacement ? 3 : 2); | |
879 | number_to_chars_bigendian (f++, insn->opc, 1); | |
880 | emit_15_bit_offset (f, 3, &exp); | |
881 | return 1; | |
882 | } | |
883 | ||
884 | static int | |
885 | reg_inh (const struct instruction *insn) | |
886 | { | |
887 | int reg; | |
888 | if (lex_reg_name (REG_BIT_Dn, ®)) | |
889 | { | |
890 | char *f = s12z_new_insn (insn->page); | |
891 | if (insn->page == 2) | |
892 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
893 | ||
894 | number_to_chars_bigendian (f++, insn->opc + reg, 1); | |
895 | return 1; | |
896 | } | |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
901 | ||
902 | /* Special case for CLR X and CLR Y */ | |
903 | static int | |
904 | clr_xy (const struct instruction *insn ATTRIBUTE_UNUSED) | |
905 | { | |
906 | int reg; | |
907 | if (lex_reg_name (REG_BIT_XY, ®)) | |
908 | { | |
909 | char *f = s12z_new_insn (1); | |
910 | number_to_chars_bigendian (f, 0x9a + reg - REG_X, 1); | |
911 | return 1; | |
912 | } | |
913 | ||
914 | return 0; | |
915 | } | |
916 | ||
917 | /* Some instructions have a suffix like ".l", ".b", ".w" etc | |
918 | which indicates the size of the operands. */ | |
919 | static int | |
920 | size_from_suffix (const struct instruction *insn, int idx) | |
921 | { | |
922 | const char *dot = strchr (insn->name, '.'); | |
923 | ||
924 | if (dot == NULL) | |
925 | return -3; | |
926 | ||
927 | int size = -2; | |
928 | switch (dot[1 + idx]) | |
929 | { | |
930 | case 'b': | |
931 | size = 1; | |
932 | break; | |
933 | case 'w': | |
934 | size = 2; | |
935 | break; | |
936 | case 'p': | |
937 | size = 3; | |
938 | break; | |
939 | case 'l': | |
940 | size = 4; | |
941 | break; | |
942 | default: | |
943 | as_fatal (_("Bad size")); | |
944 | }; | |
945 | ||
946 | return size; | |
947 | } | |
948 | ||
949 | static int | |
950 | mul_reg_reg_reg (const struct instruction *insn) | |
951 | { | |
952 | char *ilp = input_line_pointer; | |
953 | ||
954 | int Dd; | |
955 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
956 | goto fail; | |
957 | ||
958 | if (!lex_match (',')) | |
959 | goto fail; | |
960 | ||
961 | int Dj; | |
962 | if (!lex_reg_name (REG_BIT_Dn, &Dj)) | |
963 | goto fail; | |
964 | ||
965 | if (!lex_match (',')) | |
966 | goto fail; | |
967 | ||
968 | int Dk; | |
969 | if (!lex_reg_name (REG_BIT_Dn, &Dk)) | |
970 | goto fail; | |
971 | ||
972 | char *f = s12z_new_insn (insn->page + 1); | |
973 | if (insn->page == 2) | |
974 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
975 | ||
976 | number_to_chars_bigendian (f++, insn->opc + Dd, 1); | |
977 | const char *dot = strchrnul (insn->name, '.'); | |
978 | uint8_t mb ; | |
979 | switch (dot[-1]) | |
980 | { | |
981 | case 's': | |
982 | mb = 0x80; | |
983 | break; | |
984 | case 'u': | |
985 | mb = 0x00; | |
986 | break; | |
987 | default: | |
988 | as_fatal (_("BAD MUL")); | |
989 | break; | |
990 | } | |
991 | ||
992 | mb |= Dj << 3; | |
993 | mb |= Dk; | |
994 | ||
995 | number_to_chars_bigendian (f++, mb, 1); | |
996 | ||
997 | return 1; | |
998 | ||
999 | fail: | |
1000 | fail_line_pointer = input_line_pointer; | |
1001 | input_line_pointer = ilp; | |
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | ||
1006 | static int | |
1007 | mul_reg_reg_imm (const struct instruction *insn) | |
1008 | { | |
1009 | char *ilp = input_line_pointer; | |
1010 | ||
1011 | int Dd; | |
1012 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1013 | goto fail; | |
1014 | ||
1015 | if (!lex_match (',')) | |
1016 | goto fail; | |
1017 | ||
1018 | int Dj; | |
1019 | if (!lex_reg_name (REG_BIT_Dn, &Dj)) | |
1020 | goto fail; | |
1021 | ||
1022 | if (!lex_match (',')) | |
1023 | goto fail; | |
1024 | ||
1025 | long imm; | |
1026 | if (!lex_imm (&imm)) | |
1027 | goto fail; | |
1028 | ||
1029 | ||
1030 | int size = size_from_suffix (insn, 0); | |
1031 | ||
1032 | char *f = s12z_new_insn (insn->page + 1 + size); | |
1033 | if (insn->page == 2) | |
1034 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1035 | ||
1036 | number_to_chars_bigendian (f++, insn->opc + Dd, 1); | |
1037 | uint8_t mb = 0x44; | |
1038 | const char *dot = strchrnul (insn->name, '.'); | |
1039 | switch (dot[-1]) | |
1040 | { | |
1041 | case 's': | |
1042 | mb |= 0x80; | |
1043 | break; | |
1044 | case 'u': | |
1045 | mb |= 0x00; | |
1046 | break; | |
1047 | default: | |
1048 | as_fatal (_("BAD MUL")); | |
1049 | break; | |
1050 | } | |
1051 | ||
1052 | mb |= Dj << 3; | |
1053 | mb |= size - 1; | |
1054 | ||
1055 | number_to_chars_bigendian (f++, mb, 1); | |
1056 | number_to_chars_bigendian (f++, imm, size); | |
1057 | ||
1058 | return 1; | |
1059 | ||
1060 | fail: | |
1061 | fail_line_pointer = input_line_pointer; | |
1062 | input_line_pointer = ilp; | |
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | ||
1067 | static int | |
1068 | mul_reg_reg_opr (const struct instruction *insn) | |
1069 | { | |
1070 | char *ilp = input_line_pointer; | |
1071 | ||
1072 | int Dd; | |
1073 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1074 | goto fail; | |
1075 | ||
1076 | if (!lex_match (',')) | |
1077 | goto fail; | |
1078 | ||
1079 | int Dj; | |
1080 | if (!lex_reg_name (REG_BIT_Dn, &Dj)) | |
1081 | goto fail; | |
1082 | ||
1083 | if (!lex_match (',')) | |
1084 | goto fail; | |
1085 | ||
1086 | uint8_t buffer[4]; | |
1087 | int n_bytes; | |
1088 | expressionS exp; | |
1089 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
1090 | goto fail; | |
1091 | ||
1092 | int size = size_from_suffix (insn, 0); | |
1093 | ||
1094 | char *f = s12z_new_insn (insn->page + 1 + n_bytes); | |
1095 | if (insn->page == 2) | |
1096 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1097 | ||
1098 | number_to_chars_bigendian (f++, insn->opc + Dd, 1); | |
1099 | uint8_t mb = 0x40; | |
1100 | const char *dot = strchrnul (insn->name, '.'); | |
1101 | switch (dot[-1]) | |
1102 | { | |
1103 | case 's': | |
1104 | mb |= 0x80; | |
1105 | break; | |
1106 | case 'u': | |
1107 | mb |= 0x00; | |
1108 | break; | |
1109 | default: | |
1110 | as_fatal (_("BAD MUL")); | |
1111 | break; | |
1112 | } | |
1113 | ||
1114 | mb |= Dj << 3; | |
1115 | mb |= size - 1; | |
1116 | ||
1117 | number_to_chars_bigendian (f++, mb, 1); | |
1118 | ||
1119 | emit_opr (f, buffer, n_bytes, &exp); | |
1120 | ||
1121 | return 1; | |
1122 | ||
1123 | fail: | |
1124 | fail_line_pointer = input_line_pointer; | |
1125 | input_line_pointer = ilp; | |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | static int | |
1130 | mul_reg_opr_opr (const struct instruction *insn) | |
1131 | { | |
1132 | char *ilp = input_line_pointer; | |
1133 | ||
1134 | int Dd; | |
1135 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1136 | goto fail; | |
1137 | ||
1138 | if (!lex_match (',')) | |
1139 | goto fail; | |
1140 | ||
1141 | uint8_t buffer1[4]; | |
1142 | int n_bytes1; | |
1143 | expressionS exp1; | |
1144 | if (!lex_opr (buffer1, &n_bytes1, &exp1)) | |
1145 | goto fail; | |
1146 | ||
1147 | if (!lex_match (',')) | |
1148 | goto fail; | |
1149 | ||
1150 | uint8_t buffer2[4]; | |
1151 | int n_bytes2; | |
1152 | expressionS exp2; | |
1153 | if (!lex_opr (buffer2, &n_bytes2, &exp2)) | |
1154 | goto fail; | |
1155 | ||
1156 | int size1 = size_from_suffix (insn, 0); | |
1157 | int size2 = size_from_suffix (insn, 1); | |
1158 | ||
1159 | char *f = s12z_new_insn (insn->page + 1 + n_bytes1 + n_bytes2); | |
1160 | if (insn->page == 2) | |
1161 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1162 | ||
1163 | number_to_chars_bigendian (f++, insn->opc + Dd, 1); | |
1164 | uint8_t mb = 0x42; | |
1165 | const char *dot = strchrnul (insn->name, '.'); | |
1166 | switch (dot[-1]) | |
1167 | { | |
1168 | case 's': | |
1169 | mb |= 0x80; | |
1170 | break; | |
1171 | case 'u': | |
1172 | mb |= 0x00; | |
1173 | break; | |
1174 | default: | |
1175 | as_fatal (_("BAD MUL")); | |
1176 | break; | |
1177 | } | |
1178 | ||
1179 | mb |= (size1 - 1) << 4; | |
1180 | mb |= (size2 - 1) << 2; | |
1181 | number_to_chars_bigendian (f++, mb, 1); | |
1182 | ||
1183 | f = emit_opr (f, buffer1, n_bytes1, &exp1); | |
1184 | f = emit_opr (f, buffer2, n_bytes2, &exp2); | |
1185 | ||
1186 | return 1; | |
1187 | ||
1188 | fail: | |
1189 | fail_line_pointer = input_line_pointer; | |
1190 | input_line_pointer = ilp; | |
1191 | return 0; | |
1192 | } | |
1193 | ||
1194 | ||
1195 | #define REG_BIT_GRP0 \ | |
1196 | ((0x1U << REG_D2) | \ | |
1197 | (0x1U << REG_D3) | \ | |
1198 | (0x1U << REG_CCH) | \ | |
1199 | (0x1U << REG_CCL) | \ | |
1200 | (0x1U << REG_D0) | \ | |
1201 | (0x1U << REG_D1)) | |
1202 | ||
1203 | #define REG_BIT_GRP1 \ | |
1204 | ((0x1U << REG_D4) | \ | |
1205 | (0x1U << REG_D5) | \ | |
1206 | (0x1U << REG_D6) | \ | |
1207 | (0x1U << REG_D7) | \ | |
1208 | (0x1U << REG_X) | \ | |
1209 | (0x1U << REG_Y)) | |
1210 | ||
1211 | static const uint8_t reg_map [] = | |
1212 | { | |
1213 | 0x02, // D2 | |
1214 | 0x01, // D3 | |
1215 | 0x20, | |
1216 | 0x10, // D5 | |
1217 | 0x08, // D0 | |
1218 | 0x04, // D1 | |
1219 | 0x08, // D6 | |
1220 | 0x04, // D7 | |
1221 | 0x02, | |
1222 | 0x01, // Y | |
1223 | 0x00, | |
1224 | 0x00, | |
1225 | 0x20, // CCH | |
1226 | 0x10, // CCL | |
1227 | 0x00 | |
1228 | }; | |
1229 | ||
1230 | static int | |
1231 | lex_reg_list (uint16_t grp, uint16_t *reg_bits) | |
1232 | { | |
1233 | if (lex_match (',')) | |
1234 | { | |
1235 | int reg; | |
1236 | if (!lex_reg_name (grp, ®)) | |
1237 | return 0; | |
1238 | *reg_bits |= 0x1u << reg; | |
1239 | lex_reg_list (grp, reg_bits); | |
1240 | } | |
1241 | ||
1242 | /* Empty list */ | |
1243 | return 1; | |
1244 | } | |
1245 | ||
1246 | static int | |
1247 | psh_pull (const struct instruction *insn) | |
1248 | { | |
1249 | uint8_t pb = | |
1250 | (0 == strcmp ("pul", insn->name)) ? 0x80: 0x00; | |
1251 | ||
1252 | if (lex_match_string ("all16b")) | |
1253 | { | |
1254 | pb |= 0x40; | |
1255 | } | |
1256 | else if (lex_match_string ("all")) | |
1257 | { | |
1258 | /* Nothing to do */ | |
1259 | } | |
1260 | else | |
1261 | { | |
1262 | int reg1; | |
1263 | if (!lex_reg_name (REG_BIT_GRP1 | REG_BIT_GRP0, ®1)) | |
1264 | goto fail; | |
1265 | uint16_t admitted_group = 0; | |
1266 | ||
1267 | if ((0x1U << reg1) & REG_BIT_GRP1) | |
1268 | admitted_group = REG_BIT_GRP1; | |
1269 | else if ((0x1U << reg1) & REG_BIT_GRP0) | |
1270 | admitted_group = REG_BIT_GRP0; | |
1271 | ||
1272 | uint16_t reg_bits = 0x1 << reg1; | |
1273 | if (!lex_reg_list (admitted_group, ®_bits)) | |
1274 | goto fail; | |
1275 | ||
1276 | if (reg_bits & REG_BIT_GRP1) | |
1277 | pb |= 0x40; | |
1278 | ||
1279 | int i; | |
1280 | for (i = 0; i < 16; ++i) | |
1281 | { | |
1282 | if (reg_bits & (0x1u << i)) | |
1283 | pb |= reg_map[i]; | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | char *f = s12z_new_insn (2); | |
1288 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1289 | number_to_chars_bigendian (f++, pb, 1); | |
1290 | return 1; | |
1291 | ||
1292 | fail: | |
1293 | fail_line_pointer = input_line_pointer; | |
1294 | return 0; | |
1295 | } | |
1296 | ||
1297 | ||
1298 | static int | |
1299 | tfr (const struct instruction *insn) | |
1300 | { | |
1301 | int reg1; | |
1302 | if (!lex_reg_name (~0, ®1)) | |
1303 | goto fail; | |
1304 | ||
1305 | if (!lex_match (',')) | |
1306 | goto fail; | |
1307 | ||
1308 | int reg2; | |
1309 | if (!lex_reg_name (~0, ®2)) | |
1310 | goto fail; | |
1311 | ||
1312 | if ((0 == strcasecmp ("sex", insn->name)) | |
1313 | || (0 == strcasecmp ("zex", insn->name))) | |
1314 | { | |
1315 | if (registers[reg1].bytes >= registers[reg2].bytes) | |
1316 | { | |
1317 | as_bad (_("Source register for %s must be smaller that the destination register"), | |
1318 | insn->name); | |
1319 | goto fail; | |
1320 | } | |
1321 | } | |
1322 | ||
1323 | char *f = s12z_new_insn (1 + insn->page); | |
1324 | if (insn->page == 2) | |
1325 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1326 | ||
1327 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1328 | number_to_chars_bigendian (f++, reg1 << 4 | reg2, 1); | |
1329 | ||
1330 | return 1; | |
1331 | ||
1332 | fail: | |
1333 | fail_line_pointer = input_line_pointer; | |
1334 | return 0; | |
1335 | } | |
1336 | ||
1337 | static int | |
1338 | imm8 (const struct instruction *insn) | |
1339 | { | |
1340 | long imm; | |
1341 | if (! lex_imm (&imm)) | |
1342 | return 0; | |
1343 | if (imm > 127 || imm < -128) | |
1344 | { | |
1345 | as_bad (_("Immediate value %ld is out of range for instruction %s"), | |
1346 | imm, insn->name); | |
1347 | } | |
1348 | ||
1349 | char *f = s12z_new_insn (2); | |
1350 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1351 | number_to_chars_bigendian (f++, imm, 1); | |
1352 | ||
1353 | return 1; | |
1354 | } | |
1355 | ||
1356 | static int | |
1357 | reg_imm (const struct instruction *insn, int allowed_reg) | |
1358 | { | |
1359 | char *ilp = input_line_pointer; | |
1360 | int reg; | |
1361 | if (lex_reg_name (allowed_reg, ®)) | |
1362 | { | |
1363 | if (!lex_force_match (',')) | |
1364 | goto fail; | |
1365 | long imm; | |
1366 | if (! lex_imm (&imm)) | |
1367 | goto fail; | |
1368 | ||
1369 | short size = registers[reg].bytes; | |
1370 | char *f = s12z_new_insn (insn->page + size); | |
1371 | if (insn->page == 2) | |
1372 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1373 | ||
1374 | number_to_chars_bigendian (f++, insn->opc + reg, 1); | |
1375 | number_to_chars_bigendian (f++, imm, size); | |
1376 | return 1; | |
1377 | } | |
1378 | ||
1379 | fail: | |
1380 | fail_line_pointer = input_line_pointer; | |
1381 | input_line_pointer = ilp; | |
1382 | return 0; | |
1383 | } | |
1384 | ||
1385 | ||
1386 | static int | |
1387 | regd_imm (const struct instruction *insn) | |
1388 | { | |
1389 | return reg_imm (insn, REG_BIT_Dn); | |
1390 | } | |
1391 | ||
1392 | static int | |
1393 | regdxy_imm (const struct instruction *insn) | |
1394 | { | |
1395 | return reg_imm (insn, REG_BIT_Dn | REG_BIT_XY); | |
1396 | } | |
1397 | ||
1398 | ||
1399 | static int | |
1400 | regs_imm (const struct instruction *insn) | |
1401 | { | |
1402 | return reg_imm (insn, 0x1U << REG_S); | |
1403 | } | |
1404 | ||
1405 | static int | |
1406 | trap_imm (const struct instruction *insn ATTRIBUTE_UNUSED) | |
1407 | { | |
1408 | long imm = -1; | |
1409 | if (! lex_imm (&imm)) | |
1410 | goto fail; | |
1411 | ||
1412 | if (imm < 0x92 || imm > 0xFF || | |
1413 | (imm >= 0xA0 && imm <= 0xA7) || | |
1414 | (imm >= 0xB0 && imm <= 0xB7)) | |
1415 | { | |
1416 | as_bad (_("trap value %ld is not valid"), imm); | |
1417 | return 0; | |
1418 | } | |
1419 | else | |
1420 | { | |
1421 | char *f = s12z_new_insn (2); | |
1422 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1423 | number_to_chars_bigendian (f++, imm & 0xFF, 1); | |
1424 | return 1; | |
1425 | } | |
1426 | ||
1427 | return 1; | |
1428 | ||
1429 | fail: | |
1430 | fail_line_pointer = input_line_pointer; | |
1431 | return 0; | |
1432 | } | |
1433 | ||
1434 | ||
1435 | ||
1436 | /* Special one byte instruction CMP X, Y */ | |
1437 | static int | |
1438 | regx_regy (const struct instruction *insn) | |
1439 | { | |
1440 | int reg; | |
1441 | if (lex_reg_name (0x1U << REG_X, ®)) | |
1442 | { | |
1443 | if (lex_force_match (',')) | |
1444 | { | |
1445 | if (lex_reg_name (0x1U << REG_Y, ®)) | |
1446 | { | |
1447 | char *f = s12z_new_insn (1); | |
1448 | number_to_chars_bigendian (f, insn->opc, 1); | |
1449 | return 1; | |
1450 | } | |
1451 | } | |
1452 | } | |
1453 | return 0; | |
1454 | } | |
1455 | ||
1456 | /* Special one byte instruction SUB D6, X, Y */ | |
1457 | static int | |
1458 | regd6_regx_regy (const struct instruction *insn) | |
1459 | { | |
1460 | char *ilp = input_line_pointer; | |
1461 | int reg; | |
1462 | if (!lex_reg_name (0x1U << REG_D6, ®)) | |
1463 | goto fail; | |
1464 | ||
1465 | if (!lex_match (',')) | |
1466 | goto fail; | |
1467 | ||
1468 | if (!lex_reg_name (0x1U << REG_X, ®)) | |
1469 | goto fail; | |
1470 | ||
1471 | if (!lex_match (',')) | |
1472 | goto fail; | |
1473 | ||
1474 | if (!lex_reg_name (0x1U << REG_Y, ®)) | |
1475 | goto fail; | |
1476 | ||
1477 | char *f = s12z_new_insn (1); | |
1478 | number_to_chars_bigendian (f, insn->opc, 1); | |
1479 | return 1; | |
1480 | ||
1481 | fail: | |
1482 | fail_line_pointer = input_line_pointer; | |
1483 | input_line_pointer = ilp; | |
1484 | return 0; | |
1485 | } | |
1486 | ||
1487 | /* Special one byte instruction SUB D6, Y, X */ | |
1488 | static int | |
1489 | regd6_regy_regx (const struct instruction *insn) | |
1490 | { | |
1491 | char *ilp = input_line_pointer; | |
1492 | int reg; | |
1493 | if (!lex_reg_name (0x1U << REG_D6, ®)) | |
1494 | goto fail; | |
1495 | ||
1496 | if (!lex_match (',')) | |
1497 | goto fail; | |
1498 | ||
1499 | if (!lex_reg_name (0x1U << REG_Y, ®)) | |
1500 | goto fail; | |
1501 | ||
1502 | if (!lex_match (',')) | |
1503 | goto fail; | |
1504 | ||
1505 | if (!lex_reg_name (0x1U << REG_X, ®)) | |
1506 | goto fail; | |
1507 | ||
1508 | char *f = s12z_new_insn (1); | |
1509 | number_to_chars_bigendian (f, insn->opc, 1); | |
1510 | return 1; | |
1511 | ||
1512 | fail: | |
1513 | fail_line_pointer = input_line_pointer; | |
1514 | input_line_pointer = ilp; | |
1515 | return 0; | |
1516 | } | |
1517 | ||
1518 | static int | |
1519 | reg_opr (const struct instruction *insn, int allowed_regs) | |
1520 | { | |
1521 | char *ilp = input_line_pointer; | |
1522 | int reg; | |
1523 | if (lex_reg_name (allowed_regs, ®)) | |
1524 | { | |
1525 | if (!lex_force_match (',')) | |
1526 | goto fail; | |
1527 | ||
1528 | uint8_t buffer[4]; | |
1529 | int n_bytes; | |
1530 | expressionS exp; | |
1531 | if (lex_opr (buffer, &n_bytes, &exp)) | |
1532 | { | |
1533 | /* Large constant direct values are more efficiently encoded as ext24 mode. | |
1534 | Otherwise a decision has to be deferred to a relax. */ | |
1535 | if (exp.X_op == O_constant | |
1536 | && buffer[0] == 0xFA | |
1537 | && insn->alt_opc != 0) | |
1538 | { | |
1539 | char *f = s12z_new_insn (4); | |
1540 | ||
1541 | /* I don't think there are any instances of page 2 opcodes in this case */ | |
1542 | gas_assert (insn->page == 1); | |
1543 | ||
1544 | number_to_chars_bigendian (f++, insn->alt_opc + reg, 1); | |
1545 | ||
1546 | emit_ext24 (f, exp.X_add_number); | |
1547 | } | |
1548 | else | |
1549 | { | |
1550 | char *f = s12z_new_insn (n_bytes + insn->page); | |
1551 | ||
1552 | if (insn->page == 2) | |
1553 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1554 | ||
1555 | number_to_chars_bigendian (f++, insn->opc + reg, 1); | |
1556 | ||
1557 | emit_opr (f, buffer, n_bytes, &exp); | |
1558 | } | |
1559 | ||
1560 | return 1; | |
1561 | } | |
1562 | } | |
1563 | ||
1564 | fail: | |
1565 | fail_line_pointer = input_line_pointer; | |
1566 | input_line_pointer = ilp; | |
1567 | return 0; | |
1568 | } | |
1569 | ||
1570 | ||
1571 | static int | |
1572 | regdxy_opr (const struct instruction *insn) | |
1573 | { | |
1574 | return reg_opr (insn, REG_BIT_Dn | REG_BIT_XY); | |
1575 | } | |
1576 | ||
1577 | static int | |
1578 | regd_opr (const struct instruction *insn) | |
1579 | { | |
1580 | return reg_opr (insn, REG_BIT_Dn); | |
1581 | } | |
1582 | ||
1583 | ||
1584 | static int | |
1585 | regs_opr (const struct instruction *insn) | |
1586 | { | |
1587 | return reg_opr (insn, 0x1U << REG_S); | |
1588 | } | |
1589 | ||
1590 | static int | |
1591 | imm_opr (const struct instruction *insn) | |
1592 | { | |
1593 | char *ilp = input_line_pointer; | |
1594 | long imm; | |
1595 | if (!lex_imm (&imm)) | |
1596 | goto fail; | |
1597 | ||
1598 | if (!lex_match (',')) | |
1599 | goto fail; | |
1600 | ||
1601 | uint8_t buffer[4]; | |
1602 | int n_bytes; | |
1603 | expressionS exp; | |
1604 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
1605 | goto fail; | |
1606 | ||
1607 | int size = size_from_suffix (insn, 0); | |
1608 | char *f = s12z_new_insn (1 + n_bytes + size); | |
1609 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1610 | ||
1611 | int i; | |
1612 | for (i = 0; i < size; ++i) | |
1613 | number_to_chars_bigendian (f++, imm >> (CHAR_BIT * (size - i - 1)), 1); | |
1614 | ||
1615 | emit_opr (f, buffer, n_bytes, &exp); | |
1616 | ||
1617 | return 1; | |
1618 | ||
1619 | fail: | |
1620 | fail_line_pointer = input_line_pointer; | |
1621 | input_line_pointer = ilp; | |
1622 | return 0; | |
1623 | } | |
1624 | ||
1625 | static int | |
1626 | opr_opr (const struct instruction *insn) | |
1627 | { | |
1628 | char *ilp = input_line_pointer; | |
1629 | ||
1630 | uint8_t buffer1[4]; | |
1631 | int n_bytes1; | |
1632 | expressionS exp1; | |
1633 | if (!lex_opr (buffer1, &n_bytes1, &exp1)) | |
1634 | goto fail; | |
1635 | ||
1636 | ||
1637 | if (!lex_match (',')) | |
1638 | goto fail; | |
1639 | ||
1640 | uint8_t buffer2[4]; | |
1641 | int n_bytes2; | |
1642 | expressionS exp2; | |
1643 | if (!lex_opr (buffer2, &n_bytes2, &exp2)) | |
1644 | goto fail; | |
1645 | ||
1646 | char *f = s12z_new_insn (1 + n_bytes1 + n_bytes2); | |
1647 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1648 | ||
1649 | f = emit_opr (f, buffer1, n_bytes1, &exp1); | |
1650 | f = emit_opr (f, buffer2, n_bytes2, &exp2); | |
1651 | ||
1652 | return 1; | |
1653 | ||
1654 | fail: | |
1655 | fail_line_pointer = input_line_pointer; | |
1656 | input_line_pointer = ilp; | |
1657 | return 0; | |
1658 | } | |
1659 | ||
1660 | static int | |
1661 | reg67sxy_opr (const struct instruction *insn) | |
1662 | { | |
1663 | int reg; | |
1664 | if (!lex_reg_name (REG_BIT_XYS | (0x1U << REG_D6) | (0x1U << REG_D7), ®)) | |
1665 | return 0; | |
1666 | ||
1667 | if (!lex_match (',')) | |
1668 | return 0; | |
1669 | ||
1670 | uint8_t buffer[4]; | |
1671 | int n_bytes; | |
1672 | expressionS exp; | |
1673 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
1674 | return 0; | |
1675 | ||
1676 | char *f = s12z_new_insn (1 + n_bytes); | |
1677 | number_to_chars_bigendian (f++, insn->opc + reg - REG_D6, 1); | |
1678 | emit_opr (f, buffer, n_bytes, &exp); | |
1679 | ||
1680 | return 1; | |
1681 | } | |
1682 | ||
1683 | static int | |
1684 | rotate (const struct instruction *insn, short dir) | |
1685 | { | |
1686 | uint8_t buffer[4]; | |
1687 | int n_bytes; | |
1688 | expressionS exp; | |
1689 | if (lex_opr (buffer, &n_bytes, &exp)) | |
1690 | { | |
1691 | char *f = s12z_new_insn (n_bytes + 2); | |
1692 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1693 | int size = size_from_suffix (insn, 0); | |
1694 | if (size < 0) | |
1695 | size = 1; | |
1696 | uint8_t sb = 0x24; | |
1697 | sb |= size - 1; | |
1698 | if (dir) | |
1699 | sb |= 0x40; | |
1700 | number_to_chars_bigendian (f++, sb, 1); | |
1701 | emit_opr (f, buffer, n_bytes, &exp); | |
1702 | ||
1703 | return 1; | |
1704 | } | |
1705 | ||
1706 | return 0; | |
1707 | } | |
1708 | ||
1709 | static int | |
1710 | rol (const struct instruction *insn) | |
1711 | { | |
1712 | return rotate (insn, 1); | |
1713 | } | |
1714 | ||
1715 | static int | |
1716 | ror (const struct instruction *insn) | |
1717 | { | |
1718 | return rotate (insn, 0); | |
1719 | } | |
1720 | ||
1721 | ||
1722 | /* Shift instruction with a register operand and an immediate #1 or #2 | |
1723 | left = 1; right = 0; | |
1724 | logical = 0; arithmetic = 1; | |
1725 | */ | |
1726 | static int | |
1727 | lex_shift_reg_imm1 (const struct instruction *insn, short type, short dir) | |
1728 | { | |
1729 | /* | |
1730 | This function is highly unusual and a bit wierd! | |
1731 | It first matches the input against a register {d0, d1, ... d7} followed by an immediate | |
1732 | {#1, #2}. | |
1733 | Then, it rewinds the input and parses it again as a OPR. | |
1734 | */ | |
1735 | char *ilp = input_line_pointer; | |
1736 | ||
1737 | int Dd; | |
1738 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1739 | { | |
1740 | goto fail; | |
1741 | } | |
1742 | ||
1743 | if (!lex_match (',')) | |
1744 | goto fail; | |
1745 | ||
1746 | long imm = -1; | |
1747 | if (!lex_imm (&imm)) | |
1748 | goto fail; | |
1749 | ||
1750 | if (imm != 1 && imm != 2) | |
1751 | goto fail; | |
1752 | input_line_pointer = ilp; | |
1753 | ||
1754 | /* Now parse the first operand again */ | |
1755 | ||
1756 | uint8_t buffer[4]; | |
1757 | int n_bytes; | |
1758 | ||
1759 | expressionS exp; | |
1760 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
1761 | goto fail; | |
1762 | ||
1763 | gas_assert (n_bytes == 1); | |
1764 | ||
1765 | uint8_t sb = 0x34; | |
1766 | sb |= dir << 6; | |
1767 | sb |= type << 7; | |
1768 | if (imm == 2) | |
1769 | sb |= 0x08; | |
1770 | ||
1771 | char *f = s12z_new_insn (3); | |
1772 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1773 | number_to_chars_bigendian (f++, sb, 1); | |
1774 | emit_opr (f, buffer, n_bytes, &exp); | |
1775 | ||
1776 | return 1; | |
1777 | ||
1778 | fail: | |
1779 | fail_line_pointer = input_line_pointer; | |
1780 | input_line_pointer = ilp; | |
1781 | return 0; | |
1782 | } | |
1783 | ||
1784 | /* Shift instruction with a register operand. | |
1785 | left = 1; right = 0; | |
1786 | logical = 0; arithmetic = 1; */ | |
1787 | static int | |
1788 | lex_shift_reg (const struct instruction *insn, short type, short dir) | |
1789 | { | |
1790 | int Dd, Ds, Dn; | |
1791 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1792 | { | |
1793 | goto fail; | |
1794 | } | |
1795 | ||
1796 | if (!lex_match (',')) | |
1797 | goto fail; | |
1798 | ||
1799 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
1800 | { | |
1801 | goto fail; | |
1802 | } | |
1803 | ||
1804 | if (!lex_match (',')) | |
1805 | goto fail; | |
1806 | ||
1807 | uint8_t sb = 0x10; | |
1808 | sb |= Ds; | |
1809 | sb |= dir << 6; | |
1810 | sb |= type << 7; | |
1811 | long imm; | |
1812 | if (lex_reg_name (REG_BIT_Dn, &Dn)) | |
1813 | { | |
1814 | char *f = s12z_new_insn (3); | |
1815 | number_to_chars_bigendian (f++, insn->opc | Dd, 1); | |
1816 | number_to_chars_bigendian (f++, sb, 1); | |
1817 | uint8_t xb = 0xb8; | |
1818 | xb |= Dn; | |
1819 | number_to_chars_bigendian (f++, xb, 1); | |
1820 | ||
1821 | return 1; | |
1822 | } | |
1823 | else if (lex_imm (&imm)) | |
1824 | { | |
1825 | if (imm < 0 || imm > 31) | |
1826 | { | |
1827 | as_bad (_("Shift value should be in the range [0,31]")); | |
1828 | goto fail; | |
1829 | } | |
1830 | ||
1831 | int n_bytes = 3; | |
1832 | if (imm == 1 || imm == 2) | |
1833 | { | |
1834 | n_bytes = 2; | |
1835 | sb &= ~0x10; | |
1836 | } | |
1837 | else | |
1838 | { | |
1839 | sb |= (imm & 0x01) << 3; | |
1840 | } | |
1841 | ||
1842 | char *f = s12z_new_insn (n_bytes); | |
1843 | number_to_chars_bigendian (f++, insn->opc | Dd, 1); | |
1844 | number_to_chars_bigendian (f++, sb, 1); | |
1845 | if (n_bytes > 2) | |
1846 | { | |
1847 | uint8_t xb = 0x70; | |
1848 | xb |= imm >> 1; | |
1849 | number_to_chars_bigendian (f++, xb, 1); | |
1850 | } | |
1851 | ||
1852 | return 1; | |
1853 | } | |
1854 | ||
1855 | fail: | |
1856 | fail_line_pointer = input_line_pointer; | |
1857 | return 0; | |
1858 | } | |
1859 | ||
1860 | static void | |
1861 | impute_shift_dir_and_type (const struct instruction *insn, short *type, short *dir) | |
1862 | { | |
1863 | *dir = -1; | |
1864 | *type = -1; | |
1865 | switch (insn->name[0]) | |
1866 | { | |
1867 | case 'l': | |
1868 | *type = 0; | |
1869 | break; | |
1870 | case 'a': | |
1871 | *type = 1; | |
1872 | break; | |
1873 | default: | |
1874 | as_fatal (_("Bad shift mode")); | |
1875 | break; | |
1876 | } | |
1877 | ||
1878 | switch (insn->name[2]) | |
1879 | { | |
1880 | case 'l': | |
1881 | *dir = 1; | |
1882 | break; | |
1883 | case 'r': | |
1884 | *dir = 0; | |
1885 | break; | |
1886 | default: | |
1887 | as_fatal (_("Bad shift *direction")); | |
1888 | break; | |
1889 | } | |
1890 | } | |
1891 | ||
1892 | /* Shift instruction with a OPR operand */ | |
1893 | static int | |
1894 | shift_two_operand (const struct instruction *insn) | |
1895 | { | |
1896 | uint8_t sb = 0x34; | |
1897 | char *ilp = input_line_pointer; | |
1898 | ||
1899 | short dir = -1; | |
1900 | short type = -1; | |
1901 | impute_shift_dir_and_type (insn, &type, &dir); | |
1902 | sb |= dir << 6; | |
1903 | sb |= type << 7; | |
1904 | ||
1905 | int size = size_from_suffix (insn, 0); | |
1906 | sb |= size - 1; | |
1907 | ||
1908 | uint8_t buffer[4]; | |
1909 | int n_opr_bytes; | |
1910 | expressionS exp; | |
1911 | if (!lex_opr (buffer, &n_opr_bytes, &exp)) | |
1912 | goto fail; | |
1913 | ||
1914 | if (!lex_match (',')) | |
1915 | goto fail; | |
1916 | ||
1917 | long imm = -1; | |
1918 | if (!lex_imm (&imm)) | |
1919 | goto fail; | |
1920 | ||
1921 | if (imm != 1 && imm != 2) | |
1922 | goto fail; | |
1923 | ||
1924 | if (imm == 2) | |
1925 | sb |= 0x08; | |
1926 | ||
1927 | char *f = s12z_new_insn (2 + n_opr_bytes); | |
1928 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1929 | number_to_chars_bigendian (f++, sb, 1); | |
1930 | emit_opr (f, buffer, n_opr_bytes, &exp); | |
1931 | ||
1932 | return 1; | |
1933 | ||
1934 | fail: | |
1935 | fail_line_pointer = input_line_pointer; | |
1936 | input_line_pointer = ilp; | |
1937 | return 0; | |
1938 | } | |
1939 | ||
1940 | /* Shift instruction with a OPR operand */ | |
1941 | static int | |
1942 | shift_opr_imm (const struct instruction *insn) | |
1943 | { | |
1944 | char *ilp = input_line_pointer; | |
1945 | ||
1946 | short dir = -1; | |
1947 | short type = -1; | |
1948 | impute_shift_dir_and_type (insn, &type, &dir); | |
1949 | ||
1950 | int Dd = 0; | |
1951 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1952 | goto fail; | |
1953 | ||
1954 | if (!lex_match (',')) | |
1955 | goto fail; | |
1956 | ||
1957 | int n_bytes = 2; | |
1958 | ||
1959 | uint8_t buffer1[4]; | |
1960 | int n_opr_bytes1; | |
1961 | ||
1962 | expressionS exp1; | |
1963 | if (!lex_opr (buffer1, &n_opr_bytes1, &exp1)) | |
1964 | goto fail; | |
1965 | ||
1966 | n_bytes += n_opr_bytes1; | |
1967 | if (!lex_match (',')) | |
1968 | goto fail; | |
1969 | ||
1970 | uint8_t buffer2[4]; | |
1971 | int n_opr_bytes2 = 0; | |
1972 | expressionS exp2; | |
1973 | long imm; | |
1974 | bool immediate = false; | |
1975 | if (lex_imm (&imm)) | |
1976 | { | |
1977 | immediate = true; | |
1978 | } | |
1979 | else if (!lex_opr (buffer2, &n_opr_bytes2, &exp2)) | |
1980 | goto fail; | |
1981 | ||
1982 | uint8_t sb = 0x20; | |
1983 | ||
1984 | int size = size_from_suffix (insn, 0); | |
1985 | ||
1986 | if (size != -1) | |
1987 | sb |= size - 1; | |
1988 | ||
1989 | sb |= dir << 6; | |
1990 | sb |= type << 7; | |
1991 | ||
1992 | if (immediate) | |
1993 | { | |
1994 | if (imm == 2 || imm == 1) | |
1995 | { | |
1996 | if (imm == 2) | |
1997 | sb |= 0x08; | |
1998 | } | |
1999 | else | |
2000 | { | |
2001 | n_bytes++; | |
2002 | sb |= 0x10; | |
2003 | if (imm % 2) | |
2004 | sb |= 0x08; | |
2005 | } | |
2006 | } | |
2007 | else | |
2008 | { | |
2009 | n_bytes += n_opr_bytes2; | |
2010 | sb |= 0x10; | |
2011 | } | |
2012 | ||
2013 | char *f = s12z_new_insn (n_bytes); | |
2014 | number_to_chars_bigendian (f++, insn->opc | Dd, 1); | |
2015 | number_to_chars_bigendian (f++, sb, 1); | |
2016 | f = emit_opr (f, buffer1, n_opr_bytes1, &exp1); | |
2017 | if (immediate) | |
2018 | { | |
2019 | if (imm != 1 && imm != 2) | |
2020 | { | |
2021 | number_to_chars_bigendian (f++, 0x70 | (imm >> 1), 1); | |
2022 | } | |
2023 | } | |
2024 | else | |
2025 | { | |
2026 | f = emit_opr (f, buffer2, n_opr_bytes2, &exp2); | |
2027 | } | |
2028 | ||
2029 | return 1; | |
2030 | ||
2031 | fail: | |
2032 | fail_line_pointer = input_line_pointer; | |
2033 | input_line_pointer = ilp; | |
2034 | return 0; | |
2035 | } | |
2036 | ||
2037 | /* Shift instruction with a register operand */ | |
2038 | static int | |
2039 | shift_reg (const struct instruction *insn) | |
2040 | { | |
2041 | short dir = -1; | |
2042 | short type = -1; | |
2043 | impute_shift_dir_and_type (insn, &type, &dir); | |
2044 | ||
2045 | if (lex_shift_reg_imm1 (insn, type, dir)) | |
2046 | return 1; | |
2047 | ||
2048 | return lex_shift_reg (insn, type, dir); | |
2049 | } | |
2050 | ||
2051 | static int | |
2052 | bm_regd_imm (const struct instruction *insn) | |
2053 | { | |
2054 | char *ilp = input_line_pointer; | |
2055 | int Di = 0; | |
2056 | if (!lex_reg_name (REG_BIT_Dn, &Di)) | |
2057 | goto fail; | |
2058 | ||
2059 | if (!lex_match (',')) | |
2060 | goto fail; | |
2061 | ||
2062 | long imm; | |
2063 | if (!lex_imm (&imm)) | |
2064 | goto fail; | |
2065 | ||
2066 | ||
2067 | uint8_t bm = imm << 3; | |
2068 | bm |= Di; | |
2069 | ||
2070 | char *f = s12z_new_insn (2); | |
2071 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2072 | number_to_chars_bigendian (f++, bm, 1); | |
2073 | ||
2074 | return 1; | |
2075 | ||
2076 | fail: | |
2077 | fail_line_pointer = input_line_pointer; | |
2078 | input_line_pointer = ilp; | |
2079 | return 0; | |
2080 | } | |
2081 | ||
2082 | static int | |
2083 | bm_opr_reg (const struct instruction *insn) | |
2084 | { | |
2085 | char *ilp = input_line_pointer; | |
2086 | ||
2087 | uint8_t buffer[4]; | |
2088 | int n_opr_bytes; | |
2089 | ||
2090 | expressionS exp; | |
2091 | if (!lex_opr (buffer, &n_opr_bytes, &exp)) | |
2092 | goto fail; | |
2093 | ||
2094 | if (!lex_match (',')) | |
2095 | goto fail; | |
2096 | ||
2097 | int Dn = 0; | |
2098 | if (!lex_reg_name (REG_BIT_Dn, &Dn)) | |
2099 | goto fail; | |
2100 | ||
2101 | uint8_t bm = Dn << 4; | |
2102 | int size = size_from_suffix (insn, 0); | |
2103 | bm |= (size - 1) << 2; | |
2104 | bm |= 0x81; | |
2105 | ||
2106 | char *f = s12z_new_insn (2 + n_opr_bytes); | |
2107 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2108 | number_to_chars_bigendian (f++, bm, 1); | |
2109 | ||
2110 | emit_opr (f, buffer, n_opr_bytes, &exp); | |
2111 | ||
2112 | return 1; | |
2113 | ||
2114 | fail: | |
2115 | fail_line_pointer = input_line_pointer; | |
2116 | input_line_pointer = ilp; | |
2117 | return 0; | |
2118 | } | |
2119 | ||
2120 | ||
2121 | static int | |
2122 | bm_opr_imm (const struct instruction *insn) | |
2123 | { | |
2124 | char *ilp = input_line_pointer; | |
2125 | ||
2126 | uint8_t buffer[4]; | |
2127 | int n_opr_bytes; | |
2128 | ||
2129 | expressionS exp; | |
2130 | if (!lex_opr (buffer, &n_opr_bytes, &exp)) | |
2131 | goto fail; | |
2132 | ||
2133 | if (!lex_match (',')) | |
2134 | goto fail; | |
2135 | ||
2136 | ||
2137 | long imm; | |
2138 | if (!lex_imm (&imm)) | |
2139 | goto fail; | |
2140 | ||
2141 | int size = size_from_suffix (insn, 0); | |
2142 | ||
2143 | if (imm < 0 || imm >= size * 8) | |
2144 | { | |
2145 | as_bad (_("Immediate operand %ld is inappropriate for size of instruction"), imm); | |
2146 | goto fail; | |
2147 | } | |
2148 | ||
2149 | uint8_t bm = 0x80; | |
2150 | if (size == 2) | |
2151 | bm |= 0x02; | |
2152 | else if (size == 4) | |
2153 | bm |= 0x08; | |
2154 | bm |= (imm & 0x07) << 4; | |
2155 | bm |= (imm >> 3); | |
2156 | ||
2157 | ||
2158 | char *f = s12z_new_insn (2 + n_opr_bytes); | |
2159 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2160 | number_to_chars_bigendian (f++, bm, 1); | |
2161 | emit_opr (f, buffer, n_opr_bytes, &exp); | |
2162 | ||
2163 | return 1; | |
2164 | ||
2165 | fail: | |
2166 | fail_line_pointer = input_line_pointer; | |
2167 | input_line_pointer = ilp; | |
2168 | return 0; | |
2169 | } | |
2170 | ||
2171 | ||
2172 | static int | |
2173 | bm_regd_reg (const struct instruction *insn) | |
2174 | { | |
2175 | char *ilp = input_line_pointer; | |
2176 | int Di = 0; | |
2177 | if (!lex_reg_name (REG_BIT_Dn, &Di)) | |
2178 | goto fail; | |
2179 | ||
2180 | if (!lex_match (',')) | |
2181 | goto fail; | |
2182 | ||
2183 | int Dn = 0; | |
2184 | if (!lex_reg_name (REG_BIT_Dn, &Dn)) | |
2185 | goto fail; | |
2186 | ||
2187 | uint8_t bm = Dn << 4; | |
2188 | bm |= 0x81; | |
2189 | ||
2190 | uint8_t xb = Di | 0xb8; | |
2191 | ||
2192 | char *f = s12z_new_insn (3); | |
2193 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2194 | number_to_chars_bigendian (f++, bm, 1); | |
2195 | number_to_chars_bigendian (f++, xb, 1); | |
2196 | ||
2197 | return 1; | |
2198 | ||
2199 | fail: | |
2200 | fail_line_pointer = input_line_pointer; | |
2201 | input_line_pointer = ilp; | |
2202 | return 0; | |
2203 | } | |
2204 | ||
2205 | ||
2206 | \f | |
2207 | ||
2208 | ||
2209 | static int | |
2210 | bf_reg_opr_imm (const struct instruction *insn, short ie) | |
2211 | { | |
2212 | char *ilp = input_line_pointer; | |
2213 | int Dd = 0; | |
2214 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
2215 | goto fail; | |
2216 | ||
2217 | if (!lex_match (',')) | |
2218 | goto fail; | |
2219 | ||
2220 | uint8_t buffer[4]; | |
2221 | int n_bytes; | |
2222 | ||
2223 | expressionS exp; | |
2224 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2225 | goto fail; | |
2226 | ||
2227 | if (!lex_match (',')) | |
2228 | goto fail; | |
2229 | ||
2230 | long width; | |
2231 | if (!lex_imm (&width)) | |
2232 | goto fail; | |
2233 | ||
2234 | if (width < 0 || width > 31) | |
2235 | { | |
2236 | as_bad (_("Invalid width value for %s"), insn->name); | |
2237 | goto fail; | |
2238 | } | |
2239 | ||
2240 | if (!lex_match (':')) | |
2241 | goto fail; | |
2242 | ||
2243 | long offset; | |
2244 | if (!lex_constant (&offset)) | |
2245 | goto fail; | |
2246 | ||
2247 | if (offset < 0 || offset > 31) | |
2248 | { | |
2249 | as_bad (_("Invalid offset value for %s"), insn->name); | |
2250 | goto fail; | |
2251 | } | |
2252 | ||
2253 | uint8_t i1 = width << 5; | |
2254 | i1 |= offset; | |
2255 | ||
2256 | int size = size_from_suffix (insn, 0); | |
2257 | uint8_t bb = ie ? 0x80 : 0x00; | |
2258 | bb |= 0x60; | |
2259 | bb |= (size - 1) << 2; | |
2260 | bb |= width >> 3; | |
2261 | ||
2262 | char *f = s12z_new_insn (4 + n_bytes); | |
2263 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2264 | number_to_chars_bigendian (f++, 0x08 | Dd, 1); | |
2265 | number_to_chars_bigendian (f++, bb, 1); | |
2266 | number_to_chars_bigendian (f++, i1, 1); | |
2267 | ||
2268 | emit_opr (f, buffer, n_bytes, &exp); | |
2269 | ||
2270 | return 1; | |
2271 | ||
2272 | fail: | |
2273 | fail_line_pointer = input_line_pointer; | |
2274 | input_line_pointer = ilp; | |
2275 | return 0; | |
2276 | } | |
2277 | ||
2278 | ||
2279 | static int | |
2280 | bf_opr_reg_imm (const struct instruction *insn, short ie) | |
2281 | { | |
2282 | char *ilp = input_line_pointer; | |
2283 | uint8_t buffer[4]; | |
2284 | int n_bytes; | |
2285 | expressionS exp; | |
2286 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2287 | goto fail; | |
2288 | ||
2289 | if (!lex_match (',')) | |
2290 | goto fail; | |
2291 | ||
2292 | int Ds = 0; | |
2293 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
2294 | goto fail; | |
2295 | ||
2296 | if (!lex_match (',')) | |
2297 | goto fail; | |
2298 | ||
2299 | long width; | |
2300 | if (!lex_imm (&width)) | |
2301 | goto fail; | |
2302 | ||
2303 | if (width < 0 || width > 31) | |
2304 | { | |
2305 | as_bad (_("Invalid width value for %s"), insn->name); | |
2306 | goto fail; | |
2307 | } | |
2308 | ||
2309 | if (!lex_match (':')) | |
2310 | goto fail; | |
2311 | ||
2312 | long offset; | |
2313 | if (!lex_constant (&offset)) | |
2314 | goto fail; | |
2315 | ||
2316 | if (offset < 0 || offset > 31) | |
2317 | { | |
2318 | as_bad (_("Invalid offset value for %s"), insn->name); | |
2319 | goto fail; | |
2320 | } | |
2321 | ||
2322 | uint8_t i1 = width << 5; | |
2323 | i1 |= offset; | |
2324 | ||
2325 | int size = size_from_suffix (insn, 0); | |
2326 | uint8_t bb = ie ? 0x80 : 0x00; | |
2327 | bb |= 0x70; | |
2328 | bb |= (size - 1) << 2; | |
2329 | bb |= width >> 3; | |
2330 | ||
2331 | char *f = s12z_new_insn (4 + n_bytes); | |
2332 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2333 | number_to_chars_bigendian (f++, 0x08 | Ds, 1); | |
2334 | number_to_chars_bigendian (f++, bb, 1); | |
2335 | number_to_chars_bigendian (f++, i1, 1); | |
2336 | ||
2337 | emit_opr (f, buffer, n_bytes, &exp); | |
2338 | ||
2339 | return 1; | |
2340 | ||
2341 | fail: | |
2342 | fail_line_pointer = input_line_pointer; | |
2343 | input_line_pointer = ilp; | |
2344 | return 0; | |
2345 | } | |
2346 | ||
2347 | ||
2348 | ||
2349 | static int | |
2350 | bf_reg_reg_imm (const struct instruction *insn, short ie) | |
2351 | { | |
2352 | char *ilp = input_line_pointer; | |
2353 | int Dd = 0; | |
2354 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
2355 | goto fail; | |
2356 | ||
2357 | if (!lex_match (',')) | |
2358 | goto fail; | |
2359 | ||
2360 | int Ds = 0; | |
2361 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
2362 | goto fail; | |
2363 | ||
2364 | if (!lex_match (',')) | |
2365 | goto fail; | |
2366 | ||
2367 | long width; | |
2368 | if (!lex_imm (&width)) | |
2369 | goto fail; | |
2370 | ||
2371 | if (width < 0 || width > 31) | |
2372 | { | |
2373 | as_bad (_("Invalid width value for %s"), insn->name); | |
2374 | goto fail; | |
2375 | } | |
2376 | ||
2377 | if (!lex_match (':')) | |
2378 | goto fail; | |
2379 | ||
2380 | long offset; | |
2381 | if (!lex_constant (&offset)) | |
2382 | goto fail; | |
2383 | ||
2384 | if (offset < 0 || offset > 31) | |
2385 | { | |
2386 | as_bad (_("Invalid offset value for %s"), insn->name); | |
2387 | goto fail; | |
2388 | } | |
2389 | ||
2390 | uint8_t bb = ie ? 0x80 : 0x00; | |
2391 | bb |= 0x20; | |
2392 | bb |= Ds << 2; | |
2393 | bb |= width >> 3; | |
2394 | ||
2395 | uint8_t i1 = width << 5; | |
2396 | i1 |= offset; | |
2397 | ||
2398 | char *f = s12z_new_insn (4); | |
2399 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2400 | number_to_chars_bigendian (f++, 0x08 | Dd, 1); | |
2401 | number_to_chars_bigendian (f++, bb, 1); | |
2402 | number_to_chars_bigendian (f++, i1, 1); | |
2403 | ||
2404 | return 1; | |
2405 | ||
2406 | fail: | |
2407 | fail_line_pointer = input_line_pointer; | |
2408 | input_line_pointer = ilp; | |
2409 | return 0; | |
2410 | } | |
2411 | ||
2412 | static int | |
2413 | bf_reg_reg_reg (const struct instruction *insn ATTRIBUTE_UNUSED, short ie) | |
2414 | { | |
2415 | char *ilp = input_line_pointer; | |
2416 | int Dd = 0; | |
2417 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
2418 | goto fail; | |
2419 | ||
2420 | if (!lex_match (',')) | |
2421 | goto fail; | |
2422 | ||
2423 | int Ds = 0; | |
2424 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
2425 | goto fail; | |
2426 | ||
2427 | if (!lex_match (',')) | |
2428 | goto fail; | |
2429 | ||
2430 | int Dp = 0; | |
2431 | if (!lex_reg_name ((0x01u << REG_D2) | | |
2432 | (0x01u << REG_D3) | | |
2433 | (0x01u << REG_D4) | | |
2434 | (0x01u << REG_D5), | |
2435 | &Dp)) | |
2436 | goto fail; | |
2437 | ||
2438 | uint8_t bb = ie ? 0x80 : 0x00; | |
2439 | bb |= Ds << 2; | |
2440 | bb |= Dp; | |
2441 | ||
2442 | char *f = s12z_new_insn (3); | |
2443 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2444 | number_to_chars_bigendian (f++, 0x08 | Dd, 1); | |
2445 | number_to_chars_bigendian (f++, bb , 1); | |
2446 | ||
2447 | return 1; | |
2448 | ||
2449 | fail: | |
2450 | fail_line_pointer = input_line_pointer; | |
2451 | input_line_pointer = ilp; | |
2452 | return 0; | |
2453 | } | |
2454 | ||
2455 | static int | |
2456 | bf_opr_reg_reg (const struct instruction *insn, short ie) | |
2457 | { | |
2458 | char *ilp = input_line_pointer; | |
2459 | ||
2460 | uint8_t buffer[4]; | |
2461 | int n_bytes; | |
2462 | expressionS exp; | |
2463 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2464 | goto fail; | |
2465 | ||
2466 | if (!lex_match (',')) | |
2467 | goto fail; | |
2468 | ||
2469 | ||
2470 | int Ds = 0; | |
2471 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
2472 | goto fail; | |
2473 | ||
2474 | if (!lex_match (',')) | |
2475 | goto fail; | |
2476 | ||
2477 | ||
2478 | int Dp = 0; | |
2479 | if (!lex_reg_name ((0x01u << REG_D2) | | |
2480 | (0x01u << REG_D3) | | |
2481 | (0x01u << REG_D4) | | |
2482 | (0x01u << REG_D5), | |
2483 | &Dp)) | |
2484 | goto fail; | |
2485 | ||
2486 | int size = size_from_suffix (insn, 0); | |
2487 | uint8_t bb = ie ? 0x80 : 0x00; | |
2488 | bb |= 0x50; | |
2489 | bb |= Dp; | |
2490 | bb |= (size - 1) << 2; | |
2491 | ||
2492 | char *f = s12z_new_insn (3 + n_bytes); | |
2493 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2494 | number_to_chars_bigendian (f++, 0x08 | Ds, 1); | |
2495 | number_to_chars_bigendian (f++, bb , 1); | |
2496 | ||
2497 | emit_opr (f, buffer, n_bytes, &exp); | |
2498 | ||
2499 | return 1; | |
2500 | ||
2501 | fail: | |
2502 | fail_line_pointer = input_line_pointer; | |
2503 | input_line_pointer = ilp; | |
2504 | return 0; | |
2505 | } | |
2506 | ||
2507 | ||
2508 | static int | |
2509 | bf_reg_opr_reg (const struct instruction *insn, short ie) | |
2510 | { | |
2511 | char *ilp = input_line_pointer; | |
2512 | int Dd = 0; | |
2513 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
2514 | goto fail; | |
2515 | ||
2516 | if (!lex_match (',')) | |
2517 | goto fail; | |
2518 | ||
2519 | ||
2520 | uint8_t buffer[4]; | |
2521 | int n_bytes; | |
2522 | expressionS exp; | |
2523 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2524 | goto fail; | |
2525 | ||
2526 | if (!lex_match (',')) | |
2527 | goto fail; | |
2528 | ||
2529 | int Dp = 0; | |
2530 | if (!lex_reg_name ((0x01u << REG_D2) | | |
2531 | (0x01u << REG_D3) | | |
2532 | (0x01u << REG_D4) | | |
2533 | (0x01u << REG_D5), | |
2534 | &Dp)) | |
2535 | goto fail; | |
2536 | ||
2537 | int size = size_from_suffix (insn, 0); | |
2538 | uint8_t bb = ie ? 0x80 : 0x00; | |
2539 | bb |= 0x40; | |
2540 | bb |= Dp; | |
2541 | bb |= (size - 1) << 2; | |
2542 | ||
2543 | char *f = s12z_new_insn (3 + n_bytes); | |
2544 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2545 | number_to_chars_bigendian (f++, 0x08 | Dd, 1); | |
2546 | number_to_chars_bigendian (f++, bb , 1); | |
2547 | ||
2548 | emit_opr (f, buffer, n_bytes, &exp); | |
2549 | ||
2550 | return 1; | |
2551 | ||
2552 | fail: | |
2553 | fail_line_pointer = input_line_pointer; | |
2554 | input_line_pointer = ilp; | |
2555 | return 0; | |
2556 | } | |
2557 | ||
2558 | ||
2559 | ||
2560 | static int | |
2561 | bfe_reg_reg_reg (const struct instruction *insn) | |
2562 | { | |
2563 | return bf_reg_reg_reg (insn, 0); | |
2564 | } | |
2565 | ||
2566 | static int | |
2567 | bfi_reg_reg_reg (const struct instruction *insn) | |
2568 | { | |
2569 | return bf_reg_reg_reg (insn, 1); | |
2570 | } | |
2571 | ||
2572 | static int | |
2573 | bfe_reg_reg_imm (const struct instruction *insn) | |
2574 | { | |
2575 | return bf_reg_reg_imm (insn, 0); | |
2576 | } | |
2577 | ||
2578 | static int | |
2579 | bfi_reg_reg_imm (const struct instruction *insn) | |
2580 | { | |
2581 | return bf_reg_reg_imm (insn, 1); | |
2582 | } | |
2583 | ||
2584 | ||
2585 | static int | |
2586 | bfe_reg_opr_reg (const struct instruction *insn) | |
2587 | { | |
2588 | return bf_reg_opr_reg (insn, 0); | |
2589 | } | |
2590 | ||
2591 | static int | |
2592 | bfi_reg_opr_reg (const struct instruction *insn) | |
2593 | { | |
2594 | return bf_reg_opr_reg (insn, 1); | |
2595 | } | |
2596 | ||
2597 | ||
2598 | static int | |
2599 | bfe_opr_reg_reg (const struct instruction *insn) | |
2600 | { | |
2601 | return bf_opr_reg_reg (insn, 0); | |
2602 | } | |
2603 | ||
2604 | static int | |
2605 | bfi_opr_reg_reg (const struct instruction *insn) | |
2606 | { | |
2607 | return bf_opr_reg_reg (insn, 1); | |
2608 | } | |
2609 | ||
2610 | static int | |
2611 | bfe_reg_opr_imm (const struct instruction *insn) | |
2612 | { | |
2613 | return bf_reg_opr_imm (insn, 0); | |
2614 | } | |
2615 | ||
2616 | static int | |
2617 | bfi_reg_opr_imm (const struct instruction *insn) | |
2618 | { | |
2619 | return bf_reg_opr_imm (insn, 1); | |
2620 | } | |
2621 | ||
2622 | static int | |
2623 | bfe_opr_reg_imm (const struct instruction *insn) | |
2624 | { | |
2625 | return bf_opr_reg_imm (insn, 0); | |
2626 | } | |
2627 | ||
2628 | static int | |
2629 | bfi_opr_reg_imm (const struct instruction *insn) | |
2630 | { | |
2631 | return bf_opr_reg_imm (insn, 1); | |
2632 | } | |
2633 | ||
2634 | \f | |
2635 | ||
2636 | ||
2637 | static int | |
2638 | tb_reg_rel (const struct instruction *insn) | |
2639 | { | |
2640 | char *ilp = input_line_pointer; | |
2641 | ||
2642 | int reg; | |
2643 | if (!lex_reg_name (REG_BIT_Dn | REG_BIT_XY, ®)) | |
2644 | goto fail; | |
2645 | ||
2646 | if (!lex_match (',')) | |
2647 | goto fail; | |
2648 | ||
2649 | bool long_displacement; | |
2650 | expressionS exp; | |
2651 | if (! lex_15_bit_offset (&long_displacement, &exp)) | |
2652 | goto fail; | |
2653 | ||
2654 | uint8_t lb = 0x00; | |
2655 | if (reg == REG_X || reg == REG_Y) | |
2656 | { | |
2657 | lb |= 0x08; | |
2658 | } | |
2659 | else | |
2660 | { | |
2661 | lb |= reg; | |
2662 | } | |
2663 | if (reg == REG_Y) | |
2664 | lb |= 0x01; | |
2665 | ||
2666 | if (0 == strncmp (insn->name + 2, "ne", 2)) | |
2667 | lb |= 0x00 << 4; | |
2668 | else if (0 == strncmp (insn->name + 2, "eq", 2)) | |
2669 | lb |= 0x01 << 4; | |
2670 | else if (0 == strncmp (insn->name + 2, "pl", 2)) | |
2671 | lb |= 0x02 << 4; | |
2672 | else if (0 == strncmp (insn->name + 2, "mi", 2)) | |
2673 | lb |= 0x03 << 4; | |
2674 | else if (0 == strncmp (insn->name + 2, "gt", 2)) | |
2675 | lb |= 0x04 << 4; | |
2676 | else if (0 == strncmp (insn->name + 2, "le", 2)) | |
2677 | lb |= 0x05 << 4; | |
2678 | ||
2679 | switch (insn->name[0]) | |
2680 | { | |
2681 | case 'd': | |
2682 | lb |= 0x80; | |
2683 | break; | |
2684 | case 't': | |
2685 | break; | |
2686 | default: | |
2687 | gas_assert (0); | |
2688 | break; | |
2689 | }; | |
2690 | ||
2691 | char *f = s12z_new_insn (long_displacement ? 4 : 3); | |
2692 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2693 | number_to_chars_bigendian (f++, lb, 1); | |
2694 | ||
2695 | emit_15_bit_offset (f, 4, &exp); | |
2696 | ||
2697 | return 1; | |
2698 | ||
2699 | fail: | |
2700 | fail_line_pointer = input_line_pointer; | |
2701 | input_line_pointer = ilp; | |
2702 | return 0; | |
2703 | } | |
2704 | ||
2705 | ||
2706 | static int | |
2707 | tb_opr_rel (const struct instruction *insn) | |
2708 | { | |
2709 | char *ilp = input_line_pointer; | |
2710 | ||
2711 | uint8_t buffer[4]; | |
2712 | int n_bytes; | |
2713 | expressionS exp; | |
2714 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2715 | goto fail; | |
2716 | ||
2717 | if (!lex_match (',')) | |
2718 | goto fail; | |
2719 | ||
2720 | bool long_displacement; | |
2721 | expressionS exp2; | |
2722 | if (! lex_15_bit_offset (&long_displacement, &exp2)) | |
2723 | goto fail; | |
2724 | ||
2725 | uint8_t lb = 0x0C; | |
2726 | ||
2727 | if (0 == strncmp (insn->name + 2, "ne", 2)) | |
2728 | lb |= 0x00 << 4; | |
2729 | else if (0 == strncmp (insn->name + 2, "eq", 2)) | |
2730 | lb |= 0x01 << 4; | |
2731 | else if (0 == strncmp (insn->name + 2, "pl", 2)) | |
2732 | lb |= 0x02 << 4; | |
2733 | else if (0 == strncmp (insn->name + 2, "mi", 2)) | |
2734 | lb |= 0x03 << 4; | |
2735 | else if (0 == strncmp (insn->name + 2, "gt", 2)) | |
2736 | lb |= 0x04 << 4; | |
2737 | else if (0 == strncmp (insn->name + 2, "le", 2)) | |
2738 | lb |= 0x05 << 4; | |
2739 | ||
2740 | switch (insn->name[0]) | |
2741 | { | |
2742 | case 'd': | |
2743 | lb |= 0x80; | |
2744 | break; | |
2745 | case 't': | |
2746 | break; | |
2747 | default: | |
2748 | gas_assert (0); | |
2749 | break; | |
2750 | }; | |
2751 | ||
2752 | int size = size_from_suffix (insn, 0); | |
2753 | ||
2754 | lb |= size -1; | |
2755 | ||
2756 | char *f = s12z_new_insn (n_bytes + (long_displacement ? 4 : 3)); | |
2757 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2758 | number_to_chars_bigendian (f++, lb, 1); | |
2759 | f = emit_opr (f, buffer, n_bytes, &exp); | |
2760 | ||
2761 | emit_15_bit_offset (f, n_bytes + 4, &exp2); | |
2762 | ||
2763 | return 1; | |
2764 | ||
2765 | fail: | |
2766 | fail_line_pointer = input_line_pointer; | |
2767 | input_line_pointer = ilp; | |
2768 | return 0; | |
2769 | } | |
2770 | ||
2771 | \f | |
2772 | ||
2773 | ||
2774 | static int | |
2775 | test_br_reg_reg_rel (const struct instruction *insn) | |
2776 | { | |
2777 | char *ilp = input_line_pointer; | |
2778 | ||
2779 | int Di = 0; | |
2780 | if (!lex_reg_name (REG_BIT_Dn, &Di)) | |
2781 | goto fail; | |
2782 | ||
2783 | if (!lex_match (',')) | |
2784 | goto fail; | |
2785 | ||
2786 | ||
2787 | int Dn = 0; | |
2788 | if (!lex_reg_name (REG_BIT_Dn, &Dn)) | |
2789 | goto fail; | |
2790 | ||
2791 | if (!lex_match (',')) | |
2792 | goto fail; | |
2793 | ||
2794 | ||
2795 | bool long_displacement; | |
2796 | expressionS exp; | |
2797 | if (! lex_15_bit_offset (&long_displacement, &exp)) | |
2798 | goto fail; | |
2799 | ||
2800 | uint8_t bm = 0x81; | |
2801 | uint8_t xb = 0xb8; | |
2802 | ||
2803 | bm |= Dn << 4; | |
2804 | xb |= Di; | |
2805 | ||
2806 | char *f = s12z_new_insn (long_displacement ? 5 : 4); | |
2807 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2808 | number_to_chars_bigendian (f++, bm, 1); | |
2809 | number_to_chars_bigendian (f++, xb, 1); | |
2810 | ||
2811 | emit_15_bit_offset (f, 5, &exp); | |
2812 | ||
2813 | return 1; | |
2814 | ||
2815 | fail: | |
2816 | fail_line_pointer = input_line_pointer; | |
2817 | input_line_pointer = ilp; | |
2818 | return 0; | |
2819 | } | |
2820 | ||
2821 | static int | |
2822 | test_br_opr_reg_rel (const struct instruction *insn) | |
2823 | { | |
2824 | char *ilp = input_line_pointer; | |
2825 | ||
2826 | uint8_t buffer[4]; | |
2827 | int n_bytes; | |
2828 | expressionS exp; | |
2829 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2830 | goto fail; | |
2831 | ||
2832 | if (!lex_match (',')) | |
2833 | goto fail; | |
2834 | ||
2835 | int Dn = 0; | |
2836 | if (!lex_reg_name (REG_BIT_Dn, &Dn)) | |
2837 | goto fail; | |
2838 | ||
2839 | if (!lex_match (',')) | |
2840 | goto fail; | |
2841 | ||
2842 | uint8_t bm = 0x81; | |
2843 | bm |= Dn << 4; | |
2844 | int size = size_from_suffix (insn, 0); | |
2845 | bm |= (size -1) << 2; | |
2846 | ||
2847 | bool long_displacement; | |
2848 | ||
2849 | expressionS exp2; | |
2850 | if (! lex_15_bit_offset (&long_displacement, &exp2)) | |
2851 | goto fail; | |
2852 | ||
2853 | int n = n_bytes + (long_displacement ? 4 : 3); | |
2854 | char *f = s12z_new_insn (n); | |
2855 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2856 | number_to_chars_bigendian (f++, bm, 1); | |
2857 | f = emit_opr (f, buffer, n_bytes, &exp); | |
2858 | ||
2859 | emit_15_bit_offset (f, n, &exp2); | |
2860 | ||
2861 | return 1; | |
2862 | ||
2863 | fail: | |
2864 | fail_line_pointer = input_line_pointer; | |
2865 | input_line_pointer = ilp; | |
2866 | return 0; | |
2867 | } | |
2868 | ||
2869 | ||
2870 | static int | |
2871 | test_br_opr_imm_rel (const struct instruction *insn) | |
2872 | { | |
2873 | char *ilp = input_line_pointer; | |
2874 | ||
2875 | uint8_t buffer[4]; | |
2876 | int n_bytes; | |
2877 | expressionS exp; | |
2878 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2879 | goto fail; | |
2880 | ||
2881 | if (!lex_match (',')) | |
2882 | goto fail; | |
2883 | ||
2884 | long imm; | |
2885 | if (!lex_imm (&imm)) | |
2886 | goto fail; | |
2887 | ||
2888 | if (imm < 0 || imm > 31) | |
2889 | goto fail; | |
2890 | ||
2891 | if (!lex_match (',')) | |
2892 | goto fail; | |
2893 | ||
2894 | bool long_displacement; | |
2895 | expressionS exp2; | |
2896 | if (! lex_15_bit_offset (&long_displacement, &exp2)) | |
2897 | goto fail; | |
2898 | ||
2899 | int size = size_from_suffix (insn, 0); | |
2900 | ||
2901 | uint8_t bm = 0x80; | |
2902 | bm |= (imm & 0x07) << 4; | |
2903 | bm |= (imm >> 3) & 0x03; | |
2904 | if (size == 4) | |
2905 | bm |= 0x08; | |
2906 | else if (size == 2) | |
2907 | bm |= 0x02; | |
2908 | ||
2909 | char *f = s12z_new_insn (n_bytes + (long_displacement ? 4 : 3)); | |
2910 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2911 | number_to_chars_bigendian (f++, bm, 1); | |
2912 | f = emit_opr (f, buffer, n_bytes, &exp); | |
2913 | ||
2914 | emit_15_bit_offset (f, n_bytes + 4, &exp2); | |
2915 | ||
2916 | return 1; | |
2917 | ||
2918 | fail: | |
2919 | fail_line_pointer = input_line_pointer; | |
2920 | input_line_pointer = ilp; | |
2921 | return 0; | |
2922 | } | |
2923 | ||
2924 | ||
2925 | static int | |
2926 | test_br_reg_imm_rel (const struct instruction *insn) | |
2927 | { | |
2928 | char *ilp = input_line_pointer; | |
2929 | ||
2930 | int Di = 0; | |
2931 | if (!lex_reg_name (REG_BIT_Dn, &Di)) | |
2932 | goto fail; | |
2933 | ||
2934 | if (!lex_match (',')) | |
2935 | goto fail; | |
2936 | ||
2937 | long imm; | |
2938 | if (!lex_imm (&imm)) | |
2939 | goto fail; | |
2940 | ||
2941 | if (imm < 0 || imm > 31) | |
2942 | goto fail; | |
2943 | ||
2944 | ||
2945 | if (!lex_match (',')) | |
2946 | goto fail; | |
2947 | ||
2948 | bool long_displacement; | |
2949 | expressionS exp; | |
2950 | if (! lex_15_bit_offset (&long_displacement, &exp)) | |
2951 | goto fail; | |
2952 | ||
2953 | uint8_t bm = Di; | |
2954 | bm |= imm << 3; | |
2955 | ||
2956 | char *f = s12z_new_insn (long_displacement ? 4 : 3); | |
2957 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2958 | number_to_chars_bigendian (f++, bm, 1); | |
2959 | ||
2960 | emit_15_bit_offset (f, 4, &exp); | |
2961 | ||
2962 | return 1; | |
2963 | ||
2964 | fail: | |
2965 | fail_line_pointer = input_line_pointer; | |
2966 | input_line_pointer = ilp; | |
2967 | return 0; | |
2968 | } | |
2969 | ||
2970 | ||
2971 | \f | |
2972 | ||
2973 | static const struct instruction opcodes[] = { | |
2974 | {"bgnd", 1, 0x00, no_operands, 0}, | |
2975 | {"nop", 1, 0x01, no_operands, 0}, | |
2976 | ||
2977 | {"brclr", 1, 0x02, test_br_reg_reg_rel, 0}, | |
2978 | {"brset", 1, 0x03, test_br_reg_reg_rel, 0}, | |
2979 | ||
2980 | {"brclr", 1, 0x02, test_br_reg_imm_rel, 0}, | |
2981 | {"brset", 1, 0x03, test_br_reg_imm_rel, 0}, | |
2982 | ||
2983 | {"brclr.b", 1, 0x02, test_br_opr_reg_rel, 0}, | |
2984 | {"brclr.w", 1, 0x02, test_br_opr_reg_rel, 0}, | |
2985 | {"brclr.l", 1, 0x02, test_br_opr_reg_rel, 0}, | |
2986 | ||
2987 | {"brset.b", 1, 0x03, test_br_opr_reg_rel, 0}, | |
2988 | {"brset.w", 1, 0x03, test_br_opr_reg_rel, 0}, | |
2989 | {"brset.l", 1, 0x03, test_br_opr_reg_rel, 0}, | |
2990 | ||
2991 | {"brclr.b", 1, 0x02, test_br_opr_imm_rel, 0}, | |
2992 | {"brclr.w", 1, 0x02, test_br_opr_imm_rel, 0}, | |
2993 | {"brclr.l", 1, 0x02, test_br_opr_imm_rel, 0}, | |
2994 | ||
2995 | {"brset.b", 1, 0x03, test_br_opr_imm_rel, 0}, | |
2996 | {"brset.w", 1, 0x03, test_br_opr_imm_rel, 0}, | |
2997 | {"brset.l", 1, 0x03, test_br_opr_imm_rel, 0}, | |
2998 | ||
2999 | {"psh", 1, 0x04, psh_pull, 0}, | |
3000 | {"pul", 1, 0x04, psh_pull, 0}, | |
3001 | ||
3002 | {"rts", 1, 0x05, no_operands, 0}, | |
3003 | {"lea", 1, 0x06, reg67sxy_opr, 0}, | |
3004 | ||
3005 | {"dbne", 1, 0x0b, tb_reg_rel, 0}, | |
3006 | {"dbeq", 1, 0x0b, tb_reg_rel, 0}, | |
3007 | {"dbpl", 1, 0x0b, tb_reg_rel, 0}, | |
3008 | {"dbmi", 1, 0x0b, tb_reg_rel, 0}, | |
3009 | {"dbgt", 1, 0x0b, tb_reg_rel, 0}, | |
3010 | {"dble", 1, 0x0b, tb_reg_rel, 0}, | |
3011 | ||
3012 | {"dbne.b", 1, 0x0b, tb_opr_rel, 0}, | |
3013 | {"dbeq.b", 1, 0x0b, tb_opr_rel, 0}, | |
3014 | {"dbpl.b", 1, 0x0b, tb_opr_rel, 0}, | |
3015 | {"dbmi.b", 1, 0x0b, tb_opr_rel, 0}, | |
3016 | {"dbgt.b", 1, 0x0b, tb_opr_rel, 0}, | |
3017 | {"dble.b", 1, 0x0b, tb_opr_rel, 0}, | |
3018 | ||
3019 | {"dbne.w", 1, 0x0b, tb_opr_rel, 0}, | |
3020 | {"dbeq.w", 1, 0x0b, tb_opr_rel, 0}, | |
3021 | {"dbpl.w", 1, 0x0b, tb_opr_rel, 0}, | |
3022 | {"dbmi.w", 1, 0x0b, tb_opr_rel, 0}, | |
3023 | {"dbgt.w", 1, 0x0b, tb_opr_rel, 0}, | |
3024 | {"dble.w", 1, 0x0b, tb_opr_rel, 0}, | |
3025 | ||
3026 | {"dbne.p", 1, 0x0b, tb_opr_rel, 0}, | |
3027 | {"dbeq.p", 1, 0x0b, tb_opr_rel, 0}, | |
3028 | {"dbpl.p", 1, 0x0b, tb_opr_rel, 0}, | |
3029 | {"dbmi.p", 1, 0x0b, tb_opr_rel, 0}, | |
3030 | {"dbgt.p", 1, 0x0b, tb_opr_rel, 0}, | |
3031 | {"dble.p", 1, 0x0b, tb_opr_rel, 0}, | |
3032 | ||
3033 | {"dbne.l", 1, 0x0b, tb_opr_rel, 0}, | |
3034 | {"dbeq.l", 1, 0x0b, tb_opr_rel, 0}, | |
3035 | {"dbpl.l", 1, 0x0b, tb_opr_rel, 0}, | |
3036 | {"dbmi.l", 1, 0x0b, tb_opr_rel, 0}, | |
3037 | {"dbgt.l", 1, 0x0b, tb_opr_rel, 0}, | |
3038 | {"dble.l", 1, 0x0b, tb_opr_rel, 0}, | |
3039 | ||
3040 | {"tbne", 1, 0x0b, tb_reg_rel, 0}, | |
3041 | {"tbeq", 1, 0x0b, tb_reg_rel, 0}, | |
3042 | {"tbpl", 1, 0x0b, tb_reg_rel, 0}, | |
3043 | {"tbmi", 1, 0x0b, tb_reg_rel, 0}, | |
3044 | {"tbgt", 1, 0x0b, tb_reg_rel, 0}, | |
3045 | {"tble", 1, 0x0b, tb_reg_rel, 0}, | |
3046 | ||
3047 | {"tbne.b", 1, 0x0b, tb_opr_rel, 0}, | |
3048 | {"tbeq.b", 1, 0x0b, tb_opr_rel, 0}, | |
3049 | {"tbpl.b", 1, 0x0b, tb_opr_rel, 0}, | |
3050 | {"tbmi.b", 1, 0x0b, tb_opr_rel, 0}, | |
3051 | {"tbgt.b", 1, 0x0b, tb_opr_rel, 0}, | |
3052 | {"tble.b", 1, 0x0b, tb_opr_rel, 0}, | |
3053 | ||
3054 | {"tbne.w", 1, 0x0b, tb_opr_rel, 0}, | |
3055 | {"tbeq.w", 1, 0x0b, tb_opr_rel, 0}, | |
3056 | {"tbpl.w", 1, 0x0b, tb_opr_rel, 0}, | |
3057 | {"tbmi.w", 1, 0x0b, tb_opr_rel, 0}, | |
3058 | {"tbgt.w", 1, 0x0b, tb_opr_rel, 0}, | |
3059 | {"tble.w", 1, 0x0b, tb_opr_rel, 0}, | |
3060 | ||
3061 | {"tbne.p", 1, 0x0b, tb_opr_rel, 0}, | |
3062 | {"tbeq.p", 1, 0x0b, tb_opr_rel, 0}, | |
3063 | {"tbpl.p", 1, 0x0b, tb_opr_rel, 0}, | |
3064 | {"tbmi.p", 1, 0x0b, tb_opr_rel, 0}, | |
3065 | {"tbgt.p", 1, 0x0b, tb_opr_rel, 0}, | |
3066 | {"tble.p", 1, 0x0b, tb_opr_rel, 0}, | |
3067 | ||
3068 | {"tbne.l", 1, 0x0b, tb_opr_rel, 0}, | |
3069 | {"tbeq.l", 1, 0x0b, tb_opr_rel, 0}, | |
3070 | {"tbpl.l", 1, 0x0b, tb_opr_rel, 0}, | |
3071 | {"tbmi.l", 1, 0x0b, tb_opr_rel, 0}, | |
3072 | {"tbgt.l", 1, 0x0b, tb_opr_rel, 0}, | |
3073 | {"tble.l", 1, 0x0b, tb_opr_rel, 0}, | |
3074 | ||
3075 | {"mov.b", 1, 0x0c, imm_opr, 0}, | |
3076 | {"mov.w", 1, 0x0d, imm_opr, 0}, | |
3077 | {"mov.p", 1, 0x0e, imm_opr, 0}, | |
3078 | {"mov.l", 1, 0x0f, imm_opr, 0}, | |
3079 | ||
3080 | {"rol", 1, 0x10, rol, 0}, | |
3081 | {"rol.b", 1, 0x10, rol, 0}, | |
3082 | {"rol.w", 1, 0x10, rol, 0}, | |
3083 | {"rol.p", 1, 0x10, rol, 0}, | |
3084 | {"rol.l", 1, 0x10, rol, 0}, | |
3085 | ||
3086 | {"ror", 1, 0x10, ror, 0}, | |
3087 | {"ror.b", 1, 0x10, ror, 0}, | |
3088 | {"ror.w", 1, 0x10, ror, 0}, | |
3089 | {"ror.p", 1, 0x10, ror, 0}, | |
3090 | {"ror.l", 1, 0x10, ror, 0}, | |
3091 | ||
3092 | {"lsl", 1, 0x10, shift_reg, 0}, | |
3093 | {"lsr", 1, 0x10, shift_reg, 0}, | |
3094 | {"asl", 1, 0x10, shift_reg, 0}, | |
3095 | {"asr", 1, 0x10, shift_reg, 0}, | |
3096 | ||
3097 | {"lsl.b", 1, 0x10, shift_two_operand, 0}, | |
3098 | {"lsl.w", 1, 0x10, shift_two_operand, 0}, | |
3099 | {"lsl.p", 1, 0x10, shift_two_operand, 0}, | |
3100 | {"lsl.l", 1, 0x10, shift_two_operand, 0}, | |
3101 | {"asl.b", 1, 0x10, shift_two_operand, 0}, | |
3102 | {"asl.w", 1, 0x10, shift_two_operand, 0}, | |
3103 | {"asl.p", 1, 0x10, shift_two_operand, 0}, | |
3104 | {"asl.l", 1, 0x10, shift_two_operand, 0}, | |
3105 | ||
3106 | {"lsr.b", 1, 0x10, shift_two_operand, 0}, | |
3107 | {"lsr.w", 1, 0x10, shift_two_operand, 0}, | |
3108 | {"lsr.p", 1, 0x10, shift_two_operand, 0}, | |
3109 | {"lsr.l", 1, 0x10, shift_two_operand, 0}, | |
3110 | {"asr.b", 1, 0x10, shift_two_operand, 0}, | |
3111 | {"asr.w", 1, 0x10, shift_two_operand, 0}, | |
3112 | {"asr.p", 1, 0x10, shift_two_operand, 0}, | |
3113 | {"asr.l", 1, 0x10, shift_two_operand, 0}, | |
3114 | ||
3115 | {"lsl.b", 1, 0x10, shift_opr_imm, 0}, | |
3116 | {"lsl.w", 1, 0x10, shift_opr_imm, 0}, | |
3117 | {"lsl.p", 1, 0x10, shift_opr_imm, 0}, | |
3118 | {"lsl.l", 1, 0x10, shift_opr_imm, 0}, | |
3119 | {"asl.b", 1, 0x10, shift_opr_imm, 0}, | |
3120 | {"asl.w", 1, 0x10, shift_opr_imm, 0}, | |
3121 | {"asl.p", 1, 0x10, shift_opr_imm, 0}, | |
3122 | {"asl.l", 1, 0x10, shift_opr_imm, 0}, | |
3123 | ||
3124 | {"lsr.b", 1, 0x10, shift_opr_imm, 0}, | |
3125 | {"lsr.w", 1, 0x10, shift_opr_imm, 0}, | |
3126 | {"lsr.p", 1, 0x10, shift_opr_imm, 0}, | |
3127 | {"lsr.l", 1, 0x10, shift_opr_imm, 0}, | |
3128 | {"asr.b", 1, 0x10, shift_opr_imm, 0}, | |
3129 | {"asr.w", 1, 0x10, shift_opr_imm, 0}, | |
3130 | {"asr.p", 1, 0x10, shift_opr_imm, 0}, | |
3131 | {"asr.l", 1, 0x10, shift_opr_imm, 0}, | |
3132 | ||
3133 | {"mov.b", 1, 0x1c, opr_opr, 0}, | |
3134 | {"mov.w", 1, 0x1d, opr_opr, 0}, | |
3135 | {"mov.p", 1, 0x1e, opr_opr, 0}, | |
3136 | {"mov.l", 1, 0x1f, opr_opr, 0}, | |
3137 | ||
3138 | {"bra", 1, 0x20, rel, 0}, | |
3139 | {"bsr", 1, 0x21, rel, 0}, | |
3140 | {"bhi", 1, 0x22, rel, 0}, | |
3141 | {"bls", 1, 0x23, rel, 0}, | |
3142 | {"bcc", 1, 0x24, rel, 0}, | |
3143 | {"bcs", 1, 0x25, rel, 0}, | |
3144 | {"bne", 1, 0x26, rel, 0}, | |
3145 | {"beq", 1, 0x27, rel, 0}, | |
3146 | {"bvc", 1, 0x28, rel, 0}, | |
3147 | {"bvs", 1, 0x29, rel, 0}, | |
3148 | {"bpl", 1, 0x2a, rel, 0}, | |
3149 | {"bmi", 1, 0x2b, rel, 0}, | |
3150 | {"bge", 1, 0x2c, rel, 0}, | |
3151 | {"blt", 1, 0x2d, rel, 0}, | |
3152 | {"bgt", 1, 0x2e, rel, 0}, | |
3153 | {"ble", 1, 0x2f, rel, 0}, | |
3154 | ||
3155 | {"inc", 1, 0x30, reg_inh, 0}, | |
3156 | {"clr", 1, 0x38, reg_inh, 0}, | |
3157 | {"dec", 1, 0x40, reg_inh, 0}, | |
3158 | ||
3159 | {"muls", 1, 0x48, mul_reg_reg_reg, 0}, | |
3160 | {"mulu", 1, 0x48, mul_reg_reg_reg, 0}, | |
3161 | ||
3162 | {"muls.b", 1, 0x48, mul_reg_reg_opr, 0}, | |
3163 | {"muls.w", 1, 0x48, mul_reg_reg_opr, 0}, | |
3164 | {"muls.l", 1, 0x48, mul_reg_reg_opr, 0}, | |
3165 | ||
3166 | {"mulu.b", 1, 0x48, mul_reg_reg_opr, 0}, | |
3167 | {"mulu.w", 1, 0x48, mul_reg_reg_opr, 0}, | |
3168 | {"mulu.l", 1, 0x48, mul_reg_reg_opr, 0}, | |
3169 | ||
3170 | {"muls.b", 1, 0x48, mul_reg_reg_imm, 0}, | |
3171 | {"muls.w", 1, 0x48, mul_reg_reg_imm, 0}, | |
3172 | {"muls.l", 1, 0x48, mul_reg_reg_imm, 0}, | |
3173 | ||
3174 | {"mulu.b", 1, 0x48, mul_reg_reg_imm, 0}, | |
3175 | {"mulu.w", 1, 0x48, mul_reg_reg_imm, 0}, | |
3176 | {"mulu.l", 1, 0x48, mul_reg_reg_imm, 0}, | |
3177 | ||
3178 | {"muls.bb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3179 | {"muls.bw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3180 | {"muls.bp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3181 | {"muls.bl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3182 | ||
3183 | {"muls.wb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3184 | {"muls.ww", 1, 0x48, mul_reg_opr_opr, 0}, | |
3185 | {"muls.wp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3186 | {"muls.wl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3187 | ||
3188 | {"muls.pb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3189 | {"muls.pw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3190 | {"muls.pp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3191 | {"muls.pl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3192 | ||
3193 | {"muls.lb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3194 | {"muls.lw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3195 | {"muls.lp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3196 | {"muls.ll", 1, 0x48, mul_reg_opr_opr, 0}, | |
3197 | ||
3198 | {"mulu.bb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3199 | {"mulu.bw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3200 | {"mulu.bp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3201 | {"mulu.bl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3202 | ||
3203 | {"mulu.wb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3204 | {"mulu.ww", 1, 0x48, mul_reg_opr_opr, 0}, | |
3205 | {"mulu.wp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3206 | {"mulu.wl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3207 | ||
3208 | {"mulu.pb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3209 | {"mulu.pw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3210 | {"mulu.pp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3211 | {"mulu.pl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3212 | ||
3213 | {"mulu.lb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3214 | {"mulu.lw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3215 | {"mulu.lp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3216 | {"mulu.ll", 1, 0x48, mul_reg_opr_opr, 0}, | |
3217 | ||
3218 | {"add", 1, 0x50, regd_imm, 0}, | |
3219 | {"and", 1, 0x58, regd_imm, 0}, | |
3220 | ||
3221 | {"add", 1, 0x60, regd_opr, 0}, | |
3222 | {"and", 1, 0x68, regd_opr, 0}, | |
3223 | ||
3224 | {"sub", 1, 0x70, regd_imm, 0}, | |
3225 | {"or", 1, 0x78, regd_imm, 0}, | |
3226 | ||
3227 | {"sub", 1, 0x80, regd_opr, 0}, | |
3228 | {"or", 1, 0x88, regd_opr, 0}, | |
3229 | ||
3230 | {"ld", 1, 0x90, regdxy_imm, 0}, | |
3231 | ||
3232 | {"clr", 1, 0x9a, clr_xy, 0}, | |
3233 | {"tfr", 1, 0x9e, tfr, 0}, | |
3234 | {"zex", 1, 0x9e, tfr, 0}, | |
3235 | ||
3236 | {"ld", 1, 0xa0, regdxy_opr, 0xb0}, | |
3237 | ||
3238 | {"jmp", 1, 0xaa, opr, 0xba}, | |
3239 | {"jsr", 1, 0xab, opr, 0xbb}, | |
3240 | ||
3241 | {"exg", 1, 0xae, tfr, 0}, | |
3242 | {"sex", 1, 0xae, tfr, 0}, | |
3243 | ||
3244 | {"st", 1, 0xc0, regdxy_opr, 0xd0}, | |
3245 | ||
3246 | {"andcc", 1, 0xce, imm8, 0}, | |
3247 | {"orcc", 1, 0xde, imm8, 0}, | |
3248 | ||
3249 | {"inc.b", 1, 0x9c, opr, 0}, | |
3250 | {"inc.w", 1, 0x9d, opr, 0}, | |
3251 | {"inc.l", 1, 0x9f, opr, 0}, | |
3252 | ||
3253 | {"dec.b", 1, 0xac, opr, 0}, | |
3254 | {"dec.w", 1, 0xad, opr, 0}, | |
3255 | {"dec.l", 1, 0xaf, opr, 0}, | |
3256 | ||
3257 | {"clr.b", 1, 0xbc, opr, 0}, | |
3258 | {"clr.w", 1, 0xbd, opr, 0}, | |
3259 | {"clr.p", 1, 0xbe, opr, 0}, | |
3260 | {"clr.l", 1, 0xbf, opr, 0}, | |
3261 | ||
3262 | {"com.b", 1, 0xcc, opr, 0}, | |
3263 | {"com.w", 1, 0xcd, opr, 0}, | |
3264 | {"com.l", 1, 0xcf, opr, 0}, | |
3265 | ||
3266 | {"neg.b", 1, 0xdc, opr, 0}, | |
3267 | {"neg.w", 1, 0xdd, opr, 0}, | |
3268 | {"neg.l", 1, 0xdf, opr, 0}, | |
3269 | ||
3270 | {"bclr", 1, 0xec, bm_regd_imm, 0}, | |
3271 | {"bset", 1, 0xed, bm_regd_imm, 0}, | |
3272 | {"btgl", 1, 0xee, bm_regd_imm, 0}, | |
3273 | ||
3274 | {"bclr", 1, 0xec, bm_regd_reg, 0}, | |
3275 | {"bset", 1, 0xed, bm_regd_reg, 0}, | |
3276 | {"btgl", 1, 0xee, bm_regd_reg, 0}, | |
3277 | ||
3278 | {"bclr.b", 1, 0xec, bm_opr_imm, 0}, | |
3279 | {"bclr.w", 1, 0xec, bm_opr_imm, 0}, | |
3280 | {"bclr.l", 1, 0xec, bm_opr_imm, 0}, | |
3281 | ||
3282 | {"bset.b", 1, 0xed, bm_opr_imm, 0}, | |
3283 | {"bset.w", 1, 0xed, bm_opr_imm, 0}, | |
3284 | {"bset.l", 1, 0xed, bm_opr_imm, 0}, | |
3285 | ||
3286 | {"btgl.b", 1, 0xee, bm_opr_imm, 0}, | |
3287 | {"btgl.w", 1, 0xee, bm_opr_imm, 0}, | |
3288 | {"btgl.l", 1, 0xee, bm_opr_imm, 0}, | |
3289 | ||
3290 | {"bclr.b", 1, 0xec, bm_opr_reg, 0}, | |
3291 | {"bclr.w", 1, 0xec, bm_opr_reg, 0}, | |
3292 | {"bclr.l", 1, 0xec, bm_opr_reg, 0}, | |
3293 | ||
3294 | {"bset.b", 1, 0xed, bm_opr_reg, 0}, | |
3295 | {"bset.w", 1, 0xed, bm_opr_reg, 0}, | |
3296 | {"bset.l", 1, 0xed, bm_opr_reg, 0}, | |
3297 | ||
3298 | {"btgl.b", 1, 0xee, bm_opr_reg, 0}, | |
3299 | {"btgl.w", 1, 0xee, bm_opr_reg, 0}, | |
3300 | {"btgl.l", 1, 0xee, bm_opr_reg, 0}, | |
3301 | ||
3302 | {"cmp", 1, 0xe0, regdxy_imm, 0}, | |
3303 | {"cmp", 1, 0xf0, regdxy_opr, 0}, | |
3304 | ||
3305 | {"cmp", 1, 0xfc, regx_regy, 0}, | |
3306 | {"sub", 1, 0xfd, regd6_regx_regy, 0}, | |
3307 | {"sub", 1, 0xfe, regd6_regy_regx, 0}, | |
3308 | ||
3309 | {"swi", 1, 0xff, no_operands, 0}, | |
3310 | ||
3311 | /* Page 2 */ | |
3312 | ||
3313 | /* The -10 below is a kludge. The opcode is in fact 0x00 */ | |
3314 | {"ld", 2, -10, regs_opr, 0}, | |
3315 | ||
3316 | /* The -9 below is a kludge. The opcode is in fact 0x01 */ | |
3317 | {"st", 2, -9, regs_opr, 0}, | |
3318 | ||
3319 | /* The -8 below is a kludge. The opcode is in fact 0x02 */ | |
3320 | {"cmp", 2, -8, regs_opr, 0}, | |
3321 | ||
3322 | /* The -7 below is a kludge. The opcode is in fact 0x03 */ | |
3323 | {"ld", 2, -7, regs_imm, 0}, | |
3324 | ||
3325 | /* The -6 below is a kludge. The opcode is in fact 0x04 */ | |
3326 | {"cmp", 2, -6, regs_imm, 0}, | |
3327 | ||
3328 | {"bfext", 2, 0x08, bfe_reg_reg_reg, 0}, | |
3329 | {"bfext", 2, 0x08, bfe_reg_reg_imm, 0}, | |
3330 | {"bfext.b", 2, 0x08, bfe_reg_opr_reg, 0}, | |
3331 | {"bfext.w", 2, 0x08, bfe_reg_opr_reg, 0}, | |
3332 | {"bfext.p", 2, 0x08, bfe_reg_opr_reg, 0}, | |
3333 | {"bfext.l", 2, 0x08, bfe_reg_opr_reg, 0}, | |
3334 | {"bfext.b", 2, 0x08, bfe_opr_reg_reg, 0}, | |
3335 | {"bfext.w", 2, 0x08, bfe_opr_reg_reg, 0}, | |
3336 | {"bfext.p", 2, 0x08, bfe_opr_reg_reg, 0}, | |
3337 | {"bfext.l", 2, 0x08, bfe_opr_reg_reg, 0}, | |
3338 | {"bfext.b", 2, 0x08, bfe_reg_opr_imm, 0}, | |
3339 | {"bfext.w", 2, 0x08, bfe_reg_opr_imm, 0}, | |
3340 | {"bfext.p", 2, 0x08, bfe_reg_opr_imm, 0}, | |
3341 | {"bfext.l", 2, 0x08, bfe_reg_opr_imm, 0}, | |
3342 | {"bfext.b", 2, 0x08, bfe_opr_reg_imm, 0}, | |
3343 | {"bfext.w", 2, 0x08, bfe_opr_reg_imm, 0}, | |
3344 | {"bfext.p", 2, 0x08, bfe_opr_reg_imm, 0}, | |
3345 | {"bfext.l", 2, 0x08, bfe_opr_reg_imm, 0}, | |
3346 | ||
3347 | ||
3348 | {"bfins", 2, 0x08, bfi_reg_reg_reg, 0}, | |
3349 | {"bfins", 2, 0x08, bfi_reg_reg_imm, 0}, | |
3350 | {"bfins.b", 2, 0x08, bfi_reg_opr_reg, 0}, | |
3351 | {"bfins.w", 2, 0x08, bfi_reg_opr_reg, 0}, | |
3352 | {"bfins.p", 2, 0x08, bfi_reg_opr_reg, 0}, | |
3353 | {"bfins.l", 2, 0x08, bfi_reg_opr_reg, 0}, | |
3354 | {"bfins.b", 2, 0x08, bfi_opr_reg_reg, 0}, | |
3355 | {"bfins.w", 2, 0x08, bfi_opr_reg_reg, 0}, | |
3356 | {"bfins.p", 2, 0x08, bfi_opr_reg_reg, 0}, | |
3357 | {"bfins.l", 2, 0x08, bfi_opr_reg_reg, 0}, | |
3358 | {"bfins.b", 2, 0x08, bfi_reg_opr_imm, 0}, | |
3359 | {"bfins.w", 2, 0x08, bfi_reg_opr_imm, 0}, | |
3360 | {"bfins.p", 2, 0x08, bfi_reg_opr_imm, 0}, | |
3361 | {"bfins.l", 2, 0x08, bfi_reg_opr_imm, 0}, | |
3362 | {"bfins.b", 2, 0x08, bfi_opr_reg_imm, 0}, | |
3363 | {"bfins.w", 2, 0x08, bfi_opr_reg_imm, 0}, | |
3364 | {"bfins.p", 2, 0x08, bfi_opr_reg_imm, 0}, | |
3365 | {"bfins.l", 2, 0x08, bfi_opr_reg_imm, 0}, | |
3366 | ||
3367 | ||
3368 | {"minu", 2, 0x10, regd_opr, 0}, | |
3369 | {"maxu", 2, 0x18, regd_opr, 0}, | |
3370 | {"mins", 2, 0x20, regd_opr, 0}, | |
3371 | {"maxs", 2, 0x28, regd_opr, 0}, | |
3372 | ||
3373 | {"clb", 2, 0x91, tfr, 0}, | |
3374 | ||
3375 | {"trap", 2, 0x00, trap_imm, 0}, | |
3376 | {"abs", 2, 0x40, reg_inh, 0}, | |
3377 | {"sat", 2, 0xa0, reg_inh, 0}, | |
3378 | ||
3379 | {"rti", 2, 0x90, no_operands, 0}, | |
3380 | {"stop", 2, 0x05, no_operands, 0}, | |
3381 | {"wai", 2, 0x06, no_operands, 0}, | |
3382 | {"sys", 2, 0x07, no_operands, 0}, | |
3383 | ||
3384 | {"bit", 2, 0x58, regd_imm, 0}, | |
3385 | {"bit", 2, 0x68, regd_opr, 0}, | |
3386 | ||
3387 | {"adc", 2, 0x50, regd_imm, 0}, | |
3388 | {"adc", 2, 0x60, regd_opr, 0}, | |
3389 | ||
3390 | {"sbc", 2, 0x70, regd_imm, 0}, | |
3391 | {"eor", 2, 0x78, regd_imm, 0}, | |
3392 | ||
3393 | {"sbc", 2, 0x80, regd_opr, 0}, | |
3394 | {"eor", 2, 0x88, regd_opr, 0}, | |
3395 | ||
3396 | {"divs", 2, 0x30, mul_reg_reg_reg, 0}, | |
3397 | {"divu", 2, 0x30, mul_reg_reg_reg, 0}, | |
3398 | ||
3399 | {"divs.b", 2, 0x30, mul_reg_reg_opr, 0}, | |
3400 | {"divs.w", 2, 0x30, mul_reg_reg_opr, 0}, | |
3401 | {"divs.l", 2, 0x30, mul_reg_reg_opr, 0}, | |
3402 | ||
3403 | {"divu.b", 2, 0x30, mul_reg_reg_opr, 0}, | |
3404 | {"divu.w", 2, 0x30, mul_reg_reg_opr, 0}, | |
3405 | {"divu.l", 2, 0x30, mul_reg_reg_opr, 0}, | |
3406 | ||
3407 | {"divs.b", 2, 0x30, mul_reg_reg_imm, 0}, | |
3408 | {"divs.w", 2, 0x30, mul_reg_reg_imm, 0}, | |
3409 | {"divs.l", 2, 0x30, mul_reg_reg_imm, 0}, | |
3410 | ||
3411 | {"divu.b", 2, 0x30, mul_reg_reg_imm, 0}, | |
3412 | {"divu.w", 2, 0x30, mul_reg_reg_imm, 0}, | |
3413 | {"divu.l", 2, 0x30, mul_reg_reg_imm, 0}, | |
3414 | ||
3415 | {"divs.bb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3416 | {"divs.bw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3417 | {"divs.bp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3418 | {"divs.bl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3419 | ||
3420 | {"divs.wb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3421 | {"divs.ww", 2, 0x30, mul_reg_opr_opr, 0}, | |
3422 | {"divs.wp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3423 | {"divs.wl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3424 | ||
3425 | {"divs.pb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3426 | {"divs.pw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3427 | {"divs.pp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3428 | {"divs.pl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3429 | ||
3430 | {"divs.lb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3431 | {"divs.lw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3432 | {"divs.lp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3433 | {"divs.ll", 2, 0x30, mul_reg_opr_opr, 0}, | |
3434 | ||
3435 | {"divu.bb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3436 | {"divu.bw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3437 | {"divu.bp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3438 | {"divu.bl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3439 | ||
3440 | {"divu.wb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3441 | {"divu.ww", 2, 0x30, mul_reg_opr_opr, 0}, | |
3442 | {"divu.wp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3443 | {"divu.wl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3444 | ||
3445 | {"divu.pb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3446 | {"divu.pw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3447 | {"divu.pp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3448 | {"divu.pl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3449 | ||
3450 | {"divu.lb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3451 | {"divu.lw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3452 | {"divu.lp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3453 | {"divu.ll", 2, 0x30, mul_reg_opr_opr, 0}, | |
3454 | ||
3455 | // | |
3456 | ||
3457 | {"qmuls", 2, 0xb0, mul_reg_reg_reg, 0}, | |
3458 | {"qmulu", 2, 0xb0, mul_reg_reg_reg, 0}, | |
3459 | ||
3460 | {"qmuls.b", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3461 | {"qmuls.w", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3462 | {"qmuls.l", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3463 | ||
3464 | {"qmulu.b", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3465 | {"qmulu.w", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3466 | {"qmulu.l", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3467 | ||
3468 | {"qmuls.b", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3469 | {"qmuls.w", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3470 | {"qmuls.l", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3471 | ||
3472 | {"qmulu.b", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3473 | {"qmulu.w", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3474 | {"qmulu.l", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3475 | ||
3476 | {"qmuls.bb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3477 | {"qmuls.bw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3478 | {"qmuls.bp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3479 | {"qmuls.bl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3480 | ||
3481 | {"qmuls.wb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3482 | {"qmuls.ww", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3483 | {"qmuls.wp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3484 | {"qmuls.wl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3485 | ||
3486 | {"qmuls.pb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3487 | {"qmuls.pw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3488 | {"qmuls.pp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3489 | {"qmuls.pl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3490 | ||
3491 | {"qmuls.lb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3492 | {"qmuls.lw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3493 | {"qmuls.lp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3494 | {"qmuls.ll", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3495 | ||
3496 | {"qmulu.bb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3497 | {"qmulu.bw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3498 | {"qmulu.bp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3499 | {"qmulu.bl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3500 | ||
3501 | {"qmulu.wb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3502 | {"qmulu.ww", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3503 | {"qmulu.wp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3504 | {"qmulu.wl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3505 | ||
3506 | {"qmulu.pb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3507 | {"qmulu.pw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3508 | {"qmulu.pp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3509 | {"qmulu.pl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3510 | ||
3511 | {"qmulu.lb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3512 | {"qmulu.lw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3513 | {"qmulu.lp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3514 | {"qmulu.ll", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3515 | ||
3516 | ||
3517 | // | |
3518 | ||
3519 | {"macs", 2, 0x48, mul_reg_reg_reg, 0}, | |
3520 | {"macu", 2, 0x48, mul_reg_reg_reg, 0}, | |
3521 | ||
3522 | {"macs.b", 2, 0x48, mul_reg_reg_opr, 0}, | |
3523 | {"macs.w", 2, 0x48, mul_reg_reg_opr, 0}, | |
3524 | {"macs.l", 2, 0x48, mul_reg_reg_opr, 0}, | |
3525 | ||
3526 | {"macu.b", 2, 0x48, mul_reg_reg_opr, 0}, | |
3527 | {"macu.w", 2, 0x48, mul_reg_reg_opr, 0}, | |
3528 | {"macu.l", 2, 0x48, mul_reg_reg_opr, 0}, | |
3529 | ||
3530 | {"macs.b", 2, 0x48, mul_reg_reg_imm, 0}, | |
3531 | {"macs.w", 2, 0x48, mul_reg_reg_imm, 0}, | |
3532 | {"macs.l", 2, 0x48, mul_reg_reg_imm, 0}, | |
3533 | ||
3534 | {"macu.b", 2, 0x48, mul_reg_reg_imm, 0}, | |
3535 | {"macu.w", 2, 0x48, mul_reg_reg_imm, 0}, | |
3536 | {"macu.l", 2, 0x48, mul_reg_reg_imm, 0}, | |
3537 | ||
3538 | {"macs.bb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3539 | {"macs.bw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3540 | {"macs.bp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3541 | {"macs.bl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3542 | ||
3543 | {"macs.wb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3544 | {"macs.ww", 2, 0x48, mul_reg_opr_opr, 0}, | |
3545 | {"macs.wp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3546 | {"macs.wl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3547 | ||
3548 | {"macs.pb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3549 | {"macs.pw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3550 | {"macs.pp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3551 | {"macs.pl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3552 | ||
3553 | {"macs.lb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3554 | {"macs.lw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3555 | {"macs.lp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3556 | {"macs.ll", 2, 0x48, mul_reg_opr_opr, 0}, | |
3557 | ||
3558 | {"macu.bb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3559 | {"macu.bw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3560 | {"macu.bp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3561 | {"macu.bl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3562 | ||
3563 | {"macu.wb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3564 | {"macu.ww", 2, 0x48, mul_reg_opr_opr, 0}, | |
3565 | {"macu.wp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3566 | {"macu.wl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3567 | ||
3568 | {"macu.pb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3569 | {"macu.pw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3570 | {"macu.pp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3571 | {"macu.pl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3572 | ||
3573 | {"macu.lb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3574 | {"macu.lw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3575 | {"macu.lp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3576 | {"macu.ll", 2, 0x48, mul_reg_opr_opr, 0}, | |
3577 | ||
3578 | ||
3579 | // | |
3580 | ||
3581 | {"mods", 2, 0x38, mul_reg_reg_reg, 0}, | |
3582 | {"modu", 2, 0x38, mul_reg_reg_reg, 0}, | |
3583 | ||
3584 | {"mods.b", 2, 0x38, mul_reg_reg_opr, 0}, | |
3585 | {"mods.w", 2, 0x38, mul_reg_reg_opr, 0}, | |
3586 | {"mods.l", 2, 0x38, mul_reg_reg_opr, 0}, | |
3587 | ||
3588 | {"modu.b", 2, 0x38, mul_reg_reg_opr, 0}, | |
3589 | {"modu.w", 2, 0x38, mul_reg_reg_opr, 0}, | |
3590 | {"modu.l", 2, 0x38, mul_reg_reg_opr, 0}, | |
3591 | ||
3592 | {"mods.b", 2, 0x38, mul_reg_reg_imm, 0}, | |
3593 | {"mods.w", 2, 0x38, mul_reg_reg_imm, 0}, | |
3594 | {"mods.l", 2, 0x38, mul_reg_reg_imm, 0}, | |
3595 | ||
3596 | {"modu.b", 2, 0x38, mul_reg_reg_imm, 0}, | |
3597 | {"modu.w", 2, 0x38, mul_reg_reg_imm, 0}, | |
3598 | {"modu.l", 2, 0x38, mul_reg_reg_imm, 0}, | |
3599 | ||
3600 | {"mods.bb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3601 | {"mods.bw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3602 | {"mods.bp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3603 | {"mods.bl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3604 | ||
3605 | {"mods.wb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3606 | {"mods.ww", 2, 0x38, mul_reg_opr_opr, 0}, | |
3607 | {"mods.wp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3608 | {"mods.wl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3609 | ||
3610 | {"mods.pb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3611 | {"mods.pw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3612 | {"mods.pp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3613 | {"mods.pl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3614 | ||
3615 | {"mods.lb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3616 | {"mods.lw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3617 | {"mods.lp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3618 | {"mods.ll", 2, 0x38, mul_reg_opr_opr, 0}, | |
3619 | ||
3620 | {"modu.bb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3621 | {"modu.bw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3622 | {"modu.bp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3623 | {"modu.bl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3624 | ||
3625 | {"modu.wb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3626 | {"modu.ww", 2, 0x38, mul_reg_opr_opr, 0}, | |
3627 | {"modu.wp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3628 | {"modu.wl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3629 | ||
3630 | {"modu.pb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3631 | {"modu.pw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3632 | {"modu.pp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3633 | {"modu.pl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3634 | ||
3635 | {"modu.lb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3636 | {"modu.lw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3637 | {"modu.lp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3638 | {"modu.ll", 2, 0x38, mul_reg_opr_opr, 0} | |
3639 | }; | |
3640 | ||
3641 | \f | |
3642 | /* Gas line assembler entry point. */ | |
3643 | ||
3644 | /* This is the main entry point for the machine-dependent assembler. str | |
3645 | points to a machine-dependent instruction. This function is supposed to | |
3646 | emit the frags/bytes it assembles to. */ | |
3647 | void | |
3648 | md_assemble (char *str) | |
3649 | { | |
3650 | char *op_start; | |
3651 | char *op_end; | |
3652 | char name[20]; | |
3653 | size_t nlen = 0; | |
3654 | ||
3655 | fail_line_pointer = NULL; | |
3656 | ||
3657 | /* Find the opcode end and get the opcode in 'name'. The opcode is forced | |
3658 | lower case (the opcode table only has lower case op-codes). */ | |
3659 | for (op_start = op_end = str; | |
3660 | *op_end && !is_end_of_line[(int)*op_end] && *op_end != ' '; | |
3661 | op_end++) | |
3662 | { | |
3663 | name[nlen] = TOLOWER (op_start[nlen]); | |
3664 | nlen++; | |
3665 | gas_assert (nlen < sizeof (name) - 1); | |
3666 | } | |
3667 | name[nlen] = 0; | |
3668 | ||
3669 | if (nlen == 0) | |
3670 | { | |
3671 | as_bad (_("No instruction or missing opcode.")); | |
3672 | return; | |
3673 | } | |
3674 | ||
3675 | input_line_pointer = skip_whites (op_end); | |
3676 | ||
3677 | size_t i; | |
3678 | for (i = 0; i < sizeof (opcodes) / sizeof (opcodes[0]); ++i) | |
3679 | { | |
3680 | const struct instruction *opc = opcodes + i; | |
3681 | if (0 == strcmp (name, opc->name)) | |
3682 | { | |
3683 | if (opc->parse_operands (opc)) | |
3684 | return; | |
3685 | continue; | |
3686 | } | |
3687 | } | |
3688 | ||
3689 | as_bad (_("Invalid instruction: \"%s\""), str); | |
3690 | as_bad (_("First invalid token: \"%s\""), fail_line_pointer); | |
3691 | while (*input_line_pointer++) | |
3692 | ; | |
3693 | } | |
3694 | ||
3695 | \f | |
3696 | ||
3697 | ||
3698 | \f | |
3699 | /* Relocation, relaxation and frag conversions. */ | |
3700 | ||
3701 | /* PC-relative offsets are relative to the start of the | |
3702 | next instruction. That is, the address of the offset, plus its | |
3703 | size, since the offset is always the last part of the insn. */ | |
3704 | long | |
3705 | md_pcrel_from (fixS *fixP) | |
3706 | { | |
3707 | long ret = fixP->fx_size + fixP->fx_frag->fr_address; | |
3708 | if (fixP->fx_addsy && S_IS_DEFINED (fixP->fx_addsy)) | |
3709 | ret += fixP->fx_where; | |
3710 | ||
3711 | return ret; | |
3712 | } | |
3713 | ||
3714 | ||
3715 | /* We need a port-specific relaxation function to cope with sym2 - sym1 | |
3716 | relative expressions with both symbols in the same segment (but not | |
3717 | necessarily in the same frag as this insn), for example: | |
3718 | ldab sym2-(sym1-2),pc | |
3719 | sym1: | |
3720 | The offset can be 5, 9 or 16 bits long. */ | |
3721 | ||
3722 | long | |
3723 | s12z_relax_frag (segT seg ATTRIBUTE_UNUSED, fragS *fragP ATTRIBUTE_UNUSED, | |
3724 | long stretch ATTRIBUTE_UNUSED) | |
3725 | { | |
3726 | return 0; | |
3727 | } | |
3728 | ||
3729 | void | |
3730 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, asection *sec ATTRIBUTE_UNUSED, | |
3731 | fragS *fragP ATTRIBUTE_UNUSED) | |
3732 | { | |
3733 | } | |
3734 | ||
3735 | /* On an ELF system, we can't relax a weak symbol. The weak symbol | |
3736 | can be overridden at final link time by a non weak symbol. We can | |
3737 | relax externally visible symbol because there is no shared library | |
3738 | and such symbol can't be overridden (unless they are weak). */ | |
3739 | ||
3740 | /* Force truly undefined symbols to their maximum size, and generally set up | |
3741 | the frag list to be relaxed. */ | |
3742 | int | |
3743 | md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED, asection *segment ATTRIBUTE_UNUSED) | |
3744 | { | |
3745 | return 0; | |
3746 | } | |
3747 | ||
3748 | ||
3749 | /* If while processing a fixup, a reloc really needs to be created | |
3750 | then it is done here. */ | |
3751 | arelent * | |
3752 | tc_gen_reloc (asection *section, fixS *fixp) | |
3753 | { | |
3754 | arelent *reloc = XNEW (arelent); | |
3755 | reloc->sym_ptr_ptr = XNEW (asymbol *); | |
3756 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
3757 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
3758 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
3759 | if (reloc->howto == (reloc_howto_type *) NULL) | |
3760 | { | |
3761 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
3762 | _("Relocation %d is not supported by object file format."), | |
3763 | (int) fixp->fx_r_type); | |
3764 | return NULL; | |
3765 | } | |
3766 | ||
3767 | if (0 == (section->flags & SEC_CODE)) | |
3768 | reloc->addend = fixp->fx_offset; | |
3769 | else | |
3770 | reloc->addend = fixp->fx_addnumber; | |
3771 | ||
3772 | return reloc; | |
3773 | } | |
3774 | ||
3775 | /* See whether we need to force a relocation into the output file. */ | |
3776 | int | |
3777 | tc_s12z_force_relocation (fixS *fixP) | |
3778 | { | |
3779 | return generic_force_reloc (fixP); | |
3780 | } | |
3781 | ||
3782 | /* Here we decide which fixups can be adjusted to make them relative | |
3783 | to the beginning of the section instead of the symbol. Basically | |
3784 | we need to make sure that the linker relaxation is done | |
3785 | correctly, so in some cases we force the original symbol to be | |
3786 | used. */ | |
3787 | int | |
3788 | tc_s12z_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED) | |
3789 | { | |
3790 | return 1; | |
3791 | } | |
3792 | ||
3793 | void | |
3794 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) | |
3795 | { | |
3796 | long value = *valP; | |
3797 | ||
3798 | if (fixP->fx_addsy == (symbolS *) NULL) | |
3799 | fixP->fx_done = 1; | |
3800 | ||
3801 | /* We don't actually support subtracting a symbol. */ | |
3802 | if (fixP->fx_subsy != (symbolS *) NULL) | |
3803 | as_bad_where (fixP->fx_file, fixP->fx_line, _("Expression too complex.")); | |
3804 | ||
3805 | /* | |
3806 | Patch the instruction with the resolved operand. Elf relocation | |
3807 | info will also be generated to take care of linker/loader fixups. | |
3808 | */ | |
3809 | char *where = fixP->fx_frag->fr_literal + fixP->fx_where; | |
3810 | ||
3811 | switch (fixP->fx_r_type) | |
3812 | { | |
3813 | case BFD_RELOC_8: | |
3814 | ((bfd_byte *) where)[0] = (bfd_byte) value; | |
3815 | break; | |
3816 | case BFD_RELOC_24: | |
3817 | bfd_putb24 ((bfd_vma) value, (unsigned char *) where); | |
3818 | break; | |
3819 | case BFD_RELOC_32: | |
3820 | bfd_putb32 ((bfd_vma) value, (unsigned char *) where); | |
3821 | break; | |
3822 | case BFD_RELOC_16_PCREL: | |
3823 | if (value < -0x8000 || value > 0x7FFF) | |
3824 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3825 | _("Value out of 16-bit range.")); | |
3826 | ||
3827 | bfd_putb16 ((bfd_vma) value | 0x8000, (unsigned char *) where); | |
3828 | break; | |
3829 | ||
3830 | default: | |
3831 | as_fatal (_("Line %d: unknown relocation type: 0x%x."), | |
3832 | fixP->fx_line, fixP->fx_r_type); | |
3833 | } | |
3834 | } | |
3835 | ||
3836 | /* Set the ELF specific flags. */ | |
3837 | void | |
3838 | s12z_elf_final_processing (void) | |
3839 | { | |
3840 | } |