Commit | Line | Data |
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7b4ae824 | 1 | /* tc-s12z.c -- Assembler code for the Freescale S12Z |
82704155 | 2 | Copyright (C) 2018-2019 Free Software Foundation, Inc. |
7b4ae824 JD |
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" | |
7ba3ba91 | 25 | #include "opcode/s12z.h" |
7b4ae824 JD |
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 | { | |
fa9d2bd6 MR |
617 | valueT value = exp->X_add_number; |
618 | ||
619 | if (value < (0x1U << 14)) | |
7b4ae824 JD |
620 | { |
621 | *xb = 0x00; | |
622 | *n_bytes = 2; | |
fa9d2bd6 MR |
623 | *xb |= value >> 8; |
624 | buffer[1] = value; | |
7b4ae824 | 625 | } |
fa9d2bd6 | 626 | else if (value < (0x1U << 19)) |
7b4ae824 JD |
627 | { |
628 | *xb = 0xf8; | |
fa9d2bd6 | 629 | if (value & (0x1U << 17)) |
7b4ae824 | 630 | *xb |= 0x04; |
fa9d2bd6 | 631 | if (value & (0x1U << 16)) |
7b4ae824 JD |
632 | *xb |= 0x01; |
633 | *n_bytes = 3; | |
fa9d2bd6 MR |
634 | buffer[1] = value >> 8; |
635 | buffer[2] = value; | |
7b4ae824 JD |
636 | } |
637 | else | |
638 | { | |
639 | *xb = 0xfa; | |
640 | *n_bytes = 4; | |
fa9d2bd6 MR |
641 | buffer[1] = value >> 16; |
642 | buffer[2] = value >> 8; | |
643 | buffer[3] = value; | |
7b4ae824 JD |
644 | } |
645 | } | |
646 | return 1; | |
647 | } | |
648 | ||
649 | fail: | |
650 | fail_line_pointer = input_line_pointer; | |
651 | input_line_pointer = ilp; | |
652 | return 0; | |
653 | } | |
654 | ||
655 | static int | |
656 | lex_offset (long *val) | |
657 | { | |
658 | char *end = NULL; | |
659 | char *p = input_line_pointer; | |
660 | ||
661 | if (*p++ != '*') | |
662 | return 0; | |
663 | ||
664 | if (*p != '+' && *p != '-') | |
665 | return 0; | |
666 | ||
667 | bool negative = (*p == '-'); | |
668 | p++; | |
669 | ||
670 | errno = 0; | |
671 | *val = strtol (p, &end, 0); | |
672 | if (errno == 0) | |
673 | { | |
674 | if (negative) | |
675 | *val *= -1; | |
676 | input_line_pointer = end; | |
677 | return 1; | |
678 | } | |
679 | ||
680 | return 0; | |
681 | } | |
682 | ||
683 | \f | |
684 | ||
685 | struct instruction; | |
686 | ||
687 | typedef int (*parse_operand_func) (const struct instruction *); | |
688 | ||
689 | struct instruction | |
690 | { | |
691 | const char *name; | |
692 | ||
693 | /* The "page" to which the instruction belongs. | |
694 | This is also only a hint. Some instructions might have modes in both | |
695 | pages... */ | |
696 | char page; | |
697 | ||
698 | /* This is a hint - and only a hint - about the opcode of the instruction. | |
699 | The parse_operand_func is free to ignore it. | |
700 | */ | |
701 | uint8_t opc; | |
702 | ||
703 | parse_operand_func parse_operands; | |
704 | ||
705 | /* Some instructions can be encoded with a different opcode */ | |
706 | uint8_t alt_opc; | |
707 | }; | |
708 | ||
709 | static int | |
710 | no_operands (const struct instruction *insn) | |
711 | { | |
712 | if (*input_line_pointer != '\0') | |
713 | { | |
714 | as_bad (_("Garbage at end of instruction")); | |
715 | return 0; | |
716 | } | |
717 | ||
718 | char *f = s12z_new_insn (insn->page); | |
719 | if (insn->page == 2) | |
720 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
721 | ||
722 | number_to_chars_bigendian (f++, insn->opc, 1); | |
723 | ||
724 | return 1; | |
725 | } | |
726 | ||
727 | /* Emit the code for an OPR address mode operand */ | |
728 | static char * | |
729 | emit_opr (char *f, const uint8_t *buffer, int n_bytes, expressionS *exp) | |
730 | { | |
731 | int i; | |
732 | number_to_chars_bigendian (f++, buffer[0], 1); | |
733 | if (exp->X_op != O_absent && exp->X_op != O_constant) | |
734 | { | |
d5dcaf1b JD |
735 | fixS *fix = fix_new_exp (frag_now, |
736 | f - frag_now->fr_literal, | |
737 | 3, | |
738 | exp, | |
739 | FALSE, | |
740 | BFD_RELOC_S12Z_OPR); | |
741 | /* Some third party tools seem to use the lower bits | |
742 | of this addend for flags. They don't get added | |
743 | to the final location. The purpose of these flags | |
744 | is not known. We simply set it to zero. */ | |
745 | fix->fx_addnumber = 0x00; | |
7b4ae824 JD |
746 | } |
747 | for (i = 1; i < n_bytes; ++i) | |
748 | number_to_chars_bigendian (f++, buffer[i], 1); | |
749 | ||
750 | return f; | |
751 | } | |
752 | ||
753 | /* Emit the code for a 24 bit direct address operand */ | |
754 | static char * | |
755 | emit_ext24 (char *f, long v) | |
756 | { | |
757 | number_to_chars_bigendian (f, v, 3); | |
758 | ||
759 | return f + 3; | |
760 | } | |
761 | ||
762 | static int | |
763 | opr (const struct instruction *insn) | |
764 | { | |
765 | uint8_t buffer[4]; | |
766 | int n_bytes; | |
767 | expressionS exp; | |
768 | if (lex_opr (buffer, &n_bytes, &exp)) | |
769 | { | |
770 | /* Large constant direct values are more efficiently encoded as ext24 mode. | |
771 | Otherwise a decision has to be deferred to a relax. */ | |
772 | if (exp.X_op == O_constant | |
773 | && buffer[0] == 0xFA | |
774 | && insn->alt_opc != 0) | |
775 | { | |
776 | char *f = s12z_new_insn (4); | |
777 | ||
778 | /* I don't think there are any instances of page 2 opcodes in this case */ | |
779 | gas_assert (insn->page == 1); | |
780 | ||
781 | number_to_chars_bigendian (f++, insn->alt_opc, 1); | |
782 | ||
783 | emit_ext24 (f, exp.X_add_number); | |
784 | } | |
785 | else | |
786 | { | |
787 | char *f = s12z_new_insn (n_bytes + 1); | |
788 | number_to_chars_bigendian (f++, insn->opc, 1); | |
789 | ||
790 | emit_opr (f, buffer, n_bytes, &exp); | |
791 | } | |
792 | return 1; | |
793 | } | |
794 | ||
795 | return 0; | |
796 | } | |
797 | ||
798 | /* Parse a 15 bit offset, as an expression. | |
799 | LONG_DISPLACEMENT will be set to true if the offset is wider than 7 bits. | |
800 | */ | |
801 | static int | |
802 | lex_15_bit_offset (bool *long_displacement, expressionS *exp) | |
803 | { | |
804 | char *ilp = input_line_pointer; | |
805 | ||
806 | long val; | |
807 | if (lex_offset (&val)) | |
808 | { | |
809 | exp->X_op = O_absent; | |
810 | exp->X_add_number = val; | |
811 | } | |
812 | else if (lex_expression (exp)) | |
813 | { | |
814 | if (exp->X_op == O_constant) | |
815 | { | |
816 | val = exp->X_add_number; | |
817 | } | |
818 | else | |
819 | { | |
820 | /* If a symbol was parsed we don't know the displacement. | |
821 | We have to assume it is long, and relax it later if possible. */ | |
822 | *long_displacement = true; | |
823 | return 1; | |
824 | } | |
825 | } | |
826 | else | |
827 | { | |
828 | exp->X_op = O_absent; | |
829 | goto fail; | |
830 | } | |
831 | ||
832 | if (val > 0x3FFF || val < -0x4000) | |
833 | { | |
834 | as_fatal (_("Offset is outside of 15 bit range")); | |
835 | return 0; | |
836 | } | |
837 | ||
838 | *long_displacement = (val > 63 || val < -64); | |
839 | ||
840 | return 1; | |
841 | ||
842 | fail: | |
843 | fail_line_pointer = input_line_pointer; | |
844 | input_line_pointer = ilp; | |
845 | return 0; | |
846 | } | |
847 | ||
848 | static void | |
849 | emit_15_bit_offset (char *f, int where, expressionS *exp) | |
850 | { | |
851 | gas_assert (exp); | |
852 | if (exp->X_op != O_absent && exp->X_op != O_constant) | |
853 | { | |
854 | exp->X_add_number += where; | |
855 | fixS *fix = fix_new_exp (frag_now, | |
856 | f - frag_now->fr_literal, | |
857 | 2, | |
858 | exp, | |
859 | TRUE, | |
860 | BFD_RELOC_16_PCREL); | |
861 | fix->fx_addnumber = where - 2; | |
862 | } | |
863 | else | |
864 | { | |
865 | long val = exp->X_add_number; | |
866 | bool long_displacement = (val > 63 || val < -64); | |
867 | if (long_displacement) | |
868 | val |= 0x8000; | |
869 | else | |
870 | val &= 0x7F; | |
871 | ||
872 | number_to_chars_bigendian (f++, val, long_displacement ? 2 : 1); | |
873 | } | |
874 | } | |
875 | ||
876 | static int | |
877 | rel (const struct instruction *insn) | |
878 | { | |
879 | bool long_displacement; | |
880 | ||
881 | expressionS exp; | |
882 | if (! lex_15_bit_offset (&long_displacement, &exp)) | |
883 | return 0; | |
884 | ||
885 | char *f = s12z_new_insn (long_displacement ? 3 : 2); | |
886 | number_to_chars_bigendian (f++, insn->opc, 1); | |
887 | emit_15_bit_offset (f, 3, &exp); | |
888 | return 1; | |
889 | } | |
890 | ||
891 | static int | |
892 | reg_inh (const struct instruction *insn) | |
893 | { | |
894 | int reg; | |
895 | if (lex_reg_name (REG_BIT_Dn, ®)) | |
896 | { | |
897 | char *f = s12z_new_insn (insn->page); | |
898 | if (insn->page == 2) | |
899 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
900 | ||
901 | number_to_chars_bigendian (f++, insn->opc + reg, 1); | |
902 | return 1; | |
903 | } | |
904 | ||
905 | return 0; | |
906 | } | |
907 | ||
908 | ||
909 | /* Special case for CLR X and CLR Y */ | |
910 | static int | |
911 | clr_xy (const struct instruction *insn ATTRIBUTE_UNUSED) | |
912 | { | |
913 | int reg; | |
914 | if (lex_reg_name (REG_BIT_XY, ®)) | |
915 | { | |
916 | char *f = s12z_new_insn (1); | |
917 | number_to_chars_bigendian (f, 0x9a + reg - REG_X, 1); | |
918 | return 1; | |
919 | } | |
920 | ||
921 | return 0; | |
922 | } | |
923 | ||
924 | /* Some instructions have a suffix like ".l", ".b", ".w" etc | |
925 | which indicates the size of the operands. */ | |
926 | static int | |
927 | size_from_suffix (const struct instruction *insn, int idx) | |
928 | { | |
929 | const char *dot = strchr (insn->name, '.'); | |
930 | ||
931 | if (dot == NULL) | |
932 | return -3; | |
933 | ||
934 | int size = -2; | |
935 | switch (dot[1 + idx]) | |
936 | { | |
937 | case 'b': | |
938 | size = 1; | |
939 | break; | |
940 | case 'w': | |
941 | size = 2; | |
942 | break; | |
943 | case 'p': | |
944 | size = 3; | |
945 | break; | |
946 | case 'l': | |
947 | size = 4; | |
948 | break; | |
949 | default: | |
950 | as_fatal (_("Bad size")); | |
951 | }; | |
952 | ||
953 | return size; | |
954 | } | |
955 | ||
956 | static int | |
957 | mul_reg_reg_reg (const struct instruction *insn) | |
958 | { | |
959 | char *ilp = input_line_pointer; | |
960 | ||
961 | int Dd; | |
962 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
963 | goto fail; | |
964 | ||
965 | if (!lex_match (',')) | |
966 | goto fail; | |
967 | ||
968 | int Dj; | |
969 | if (!lex_reg_name (REG_BIT_Dn, &Dj)) | |
970 | goto fail; | |
971 | ||
972 | if (!lex_match (',')) | |
973 | goto fail; | |
974 | ||
975 | int Dk; | |
976 | if (!lex_reg_name (REG_BIT_Dn, &Dk)) | |
977 | goto fail; | |
978 | ||
979 | char *f = s12z_new_insn (insn->page + 1); | |
980 | if (insn->page == 2) | |
981 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
982 | ||
983 | number_to_chars_bigendian (f++, insn->opc + Dd, 1); | |
984 | const char *dot = strchrnul (insn->name, '.'); | |
985 | uint8_t mb ; | |
986 | switch (dot[-1]) | |
987 | { | |
988 | case 's': | |
989 | mb = 0x80; | |
990 | break; | |
991 | case 'u': | |
992 | mb = 0x00; | |
993 | break; | |
994 | default: | |
995 | as_fatal (_("BAD MUL")); | |
996 | break; | |
997 | } | |
998 | ||
999 | mb |= Dj << 3; | |
1000 | mb |= Dk; | |
1001 | ||
1002 | number_to_chars_bigendian (f++, mb, 1); | |
1003 | ||
1004 | return 1; | |
1005 | ||
1006 | fail: | |
1007 | fail_line_pointer = input_line_pointer; | |
1008 | input_line_pointer = ilp; | |
1009 | return 0; | |
1010 | } | |
1011 | ||
1012 | ||
1013 | static int | |
1014 | mul_reg_reg_imm (const struct instruction *insn) | |
1015 | { | |
1016 | char *ilp = input_line_pointer; | |
1017 | ||
1018 | int Dd; | |
1019 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1020 | goto fail; | |
1021 | ||
1022 | if (!lex_match (',')) | |
1023 | goto fail; | |
1024 | ||
1025 | int Dj; | |
1026 | if (!lex_reg_name (REG_BIT_Dn, &Dj)) | |
1027 | goto fail; | |
1028 | ||
1029 | if (!lex_match (',')) | |
1030 | goto fail; | |
1031 | ||
1032 | long imm; | |
1033 | if (!lex_imm (&imm)) | |
1034 | goto fail; | |
1035 | ||
1036 | ||
1037 | int size = size_from_suffix (insn, 0); | |
1038 | ||
1039 | char *f = s12z_new_insn (insn->page + 1 + size); | |
1040 | if (insn->page == 2) | |
1041 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1042 | ||
1043 | number_to_chars_bigendian (f++, insn->opc + Dd, 1); | |
1044 | uint8_t mb = 0x44; | |
1045 | const char *dot = strchrnul (insn->name, '.'); | |
1046 | switch (dot[-1]) | |
1047 | { | |
1048 | case 's': | |
1049 | mb |= 0x80; | |
1050 | break; | |
1051 | case 'u': | |
1052 | mb |= 0x00; | |
1053 | break; | |
1054 | default: | |
1055 | as_fatal (_("BAD MUL")); | |
1056 | break; | |
1057 | } | |
1058 | ||
1059 | mb |= Dj << 3; | |
1060 | mb |= size - 1; | |
1061 | ||
1062 | number_to_chars_bigendian (f++, mb, 1); | |
1063 | number_to_chars_bigendian (f++, imm, size); | |
1064 | ||
1065 | return 1; | |
1066 | ||
1067 | fail: | |
1068 | fail_line_pointer = input_line_pointer; | |
1069 | input_line_pointer = ilp; | |
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | ||
1074 | static int | |
1075 | mul_reg_reg_opr (const struct instruction *insn) | |
1076 | { | |
1077 | char *ilp = input_line_pointer; | |
1078 | ||
1079 | int Dd; | |
1080 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1081 | goto fail; | |
1082 | ||
1083 | if (!lex_match (',')) | |
1084 | goto fail; | |
1085 | ||
1086 | int Dj; | |
1087 | if (!lex_reg_name (REG_BIT_Dn, &Dj)) | |
1088 | goto fail; | |
1089 | ||
1090 | if (!lex_match (',')) | |
1091 | goto fail; | |
1092 | ||
1093 | uint8_t buffer[4]; | |
1094 | int n_bytes; | |
1095 | expressionS exp; | |
1096 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
1097 | goto fail; | |
1098 | ||
1099 | int size = size_from_suffix (insn, 0); | |
1100 | ||
1101 | char *f = s12z_new_insn (insn->page + 1 + n_bytes); | |
1102 | if (insn->page == 2) | |
1103 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1104 | ||
1105 | number_to_chars_bigendian (f++, insn->opc + Dd, 1); | |
1106 | uint8_t mb = 0x40; | |
1107 | const char *dot = strchrnul (insn->name, '.'); | |
1108 | switch (dot[-1]) | |
1109 | { | |
1110 | case 's': | |
1111 | mb |= 0x80; | |
1112 | break; | |
1113 | case 'u': | |
1114 | mb |= 0x00; | |
1115 | break; | |
1116 | default: | |
1117 | as_fatal (_("BAD MUL")); | |
1118 | break; | |
1119 | } | |
1120 | ||
1121 | mb |= Dj << 3; | |
1122 | mb |= size - 1; | |
1123 | ||
1124 | number_to_chars_bigendian (f++, mb, 1); | |
1125 | ||
1126 | emit_opr (f, buffer, n_bytes, &exp); | |
1127 | ||
1128 | return 1; | |
1129 | ||
1130 | fail: | |
1131 | fail_line_pointer = input_line_pointer; | |
1132 | input_line_pointer = ilp; | |
1133 | return 0; | |
1134 | } | |
1135 | ||
1136 | static int | |
1137 | mul_reg_opr_opr (const struct instruction *insn) | |
1138 | { | |
1139 | char *ilp = input_line_pointer; | |
1140 | ||
1141 | int Dd; | |
1142 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1143 | goto fail; | |
1144 | ||
1145 | if (!lex_match (',')) | |
1146 | goto fail; | |
1147 | ||
1148 | uint8_t buffer1[4]; | |
1149 | int n_bytes1; | |
1150 | expressionS exp1; | |
1151 | if (!lex_opr (buffer1, &n_bytes1, &exp1)) | |
1152 | goto fail; | |
1153 | ||
1154 | if (!lex_match (',')) | |
1155 | goto fail; | |
1156 | ||
1157 | uint8_t buffer2[4]; | |
1158 | int n_bytes2; | |
1159 | expressionS exp2; | |
1160 | if (!lex_opr (buffer2, &n_bytes2, &exp2)) | |
1161 | goto fail; | |
1162 | ||
1163 | int size1 = size_from_suffix (insn, 0); | |
1164 | int size2 = size_from_suffix (insn, 1); | |
1165 | ||
1166 | char *f = s12z_new_insn (insn->page + 1 + n_bytes1 + n_bytes2); | |
1167 | if (insn->page == 2) | |
1168 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1169 | ||
1170 | number_to_chars_bigendian (f++, insn->opc + Dd, 1); | |
1171 | uint8_t mb = 0x42; | |
1172 | const char *dot = strchrnul (insn->name, '.'); | |
1173 | switch (dot[-1]) | |
1174 | { | |
1175 | case 's': | |
1176 | mb |= 0x80; | |
1177 | break; | |
1178 | case 'u': | |
1179 | mb |= 0x00; | |
1180 | break; | |
1181 | default: | |
1182 | as_fatal (_("BAD MUL")); | |
1183 | break; | |
1184 | } | |
1185 | ||
1186 | mb |= (size1 - 1) << 4; | |
1187 | mb |= (size2 - 1) << 2; | |
1188 | number_to_chars_bigendian (f++, mb, 1); | |
1189 | ||
1190 | f = emit_opr (f, buffer1, n_bytes1, &exp1); | |
1191 | f = emit_opr (f, buffer2, n_bytes2, &exp2); | |
1192 | ||
1193 | return 1; | |
1194 | ||
1195 | fail: | |
1196 | fail_line_pointer = input_line_pointer; | |
1197 | input_line_pointer = ilp; | |
1198 | return 0; | |
1199 | } | |
1200 | ||
1201 | ||
1202 | #define REG_BIT_GRP0 \ | |
1203 | ((0x1U << REG_D2) | \ | |
1204 | (0x1U << REG_D3) | \ | |
1205 | (0x1U << REG_CCH) | \ | |
1206 | (0x1U << REG_CCL) | \ | |
1207 | (0x1U << REG_D0) | \ | |
1208 | (0x1U << REG_D1)) | |
1209 | ||
1210 | #define REG_BIT_GRP1 \ | |
1211 | ((0x1U << REG_D4) | \ | |
1212 | (0x1U << REG_D5) | \ | |
1213 | (0x1U << REG_D6) | \ | |
1214 | (0x1U << REG_D7) | \ | |
1215 | (0x1U << REG_X) | \ | |
1216 | (0x1U << REG_Y)) | |
1217 | ||
1218 | static const uint8_t reg_map [] = | |
1219 | { | |
1220 | 0x02, // D2 | |
1221 | 0x01, // D3 | |
1222 | 0x20, | |
1223 | 0x10, // D5 | |
1224 | 0x08, // D0 | |
1225 | 0x04, // D1 | |
1226 | 0x08, // D6 | |
1227 | 0x04, // D7 | |
1228 | 0x02, | |
1229 | 0x01, // Y | |
1230 | 0x00, | |
1231 | 0x00, | |
1232 | 0x20, // CCH | |
1233 | 0x10, // CCL | |
1234 | 0x00 | |
1235 | }; | |
1236 | ||
1237 | static int | |
1238 | lex_reg_list (uint16_t grp, uint16_t *reg_bits) | |
1239 | { | |
1240 | if (lex_match (',')) | |
1241 | { | |
1242 | int reg; | |
1243 | if (!lex_reg_name (grp, ®)) | |
1244 | return 0; | |
1245 | *reg_bits |= 0x1u << reg; | |
1246 | lex_reg_list (grp, reg_bits); | |
1247 | } | |
1248 | ||
1249 | /* Empty list */ | |
1250 | return 1; | |
1251 | } | |
1252 | ||
1253 | static int | |
1254 | psh_pull (const struct instruction *insn) | |
1255 | { | |
1256 | uint8_t pb = | |
1257 | (0 == strcmp ("pul", insn->name)) ? 0x80: 0x00; | |
1258 | ||
1259 | if (lex_match_string ("all16b")) | |
1260 | { | |
1261 | pb |= 0x40; | |
1262 | } | |
1263 | else if (lex_match_string ("all")) | |
1264 | { | |
1265 | /* Nothing to do */ | |
1266 | } | |
1267 | else | |
1268 | { | |
1269 | int reg1; | |
1270 | if (!lex_reg_name (REG_BIT_GRP1 | REG_BIT_GRP0, ®1)) | |
1271 | goto fail; | |
1272 | uint16_t admitted_group = 0; | |
1273 | ||
1274 | if ((0x1U << reg1) & REG_BIT_GRP1) | |
1275 | admitted_group = REG_BIT_GRP1; | |
1276 | else if ((0x1U << reg1) & REG_BIT_GRP0) | |
1277 | admitted_group = REG_BIT_GRP0; | |
1278 | ||
1279 | uint16_t reg_bits = 0x1 << reg1; | |
1280 | if (!lex_reg_list (admitted_group, ®_bits)) | |
1281 | goto fail; | |
1282 | ||
1283 | if (reg_bits & REG_BIT_GRP1) | |
1284 | pb |= 0x40; | |
1285 | ||
1286 | int i; | |
1287 | for (i = 0; i < 16; ++i) | |
1288 | { | |
1289 | if (reg_bits & (0x1u << i)) | |
1290 | pb |= reg_map[i]; | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | char *f = s12z_new_insn (2); | |
1295 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1296 | number_to_chars_bigendian (f++, pb, 1); | |
1297 | return 1; | |
1298 | ||
1299 | fail: | |
1300 | fail_line_pointer = input_line_pointer; | |
1301 | return 0; | |
1302 | } | |
1303 | ||
1304 | ||
1305 | static int | |
1306 | tfr (const struct instruction *insn) | |
1307 | { | |
1308 | int reg1; | |
1309 | if (!lex_reg_name (~0, ®1)) | |
1310 | goto fail; | |
1311 | ||
1312 | if (!lex_match (',')) | |
1313 | goto fail; | |
1314 | ||
1315 | int reg2; | |
1316 | if (!lex_reg_name (~0, ®2)) | |
1317 | goto fail; | |
1318 | ||
77fdb0e0 JD |
1319 | if ( ((0 == strcasecmp ("sex", insn->name)) |
1320 | || (0 == strcasecmp ("zex", insn->name))) | |
1321 | && (registers[reg2].bytes <= registers[reg1].bytes)) | |
1322 | as_warn (_("Source register for %s is no larger than the destination register"), | |
1323 | insn->name); | |
7b4ae824 JD |
1324 | |
1325 | char *f = s12z_new_insn (1 + insn->page); | |
1326 | if (insn->page == 2) | |
1327 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1328 | ||
1329 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1330 | number_to_chars_bigendian (f++, reg1 << 4 | reg2, 1); | |
1331 | ||
1332 | return 1; | |
1333 | ||
1334 | fail: | |
1335 | fail_line_pointer = input_line_pointer; | |
1336 | return 0; | |
1337 | } | |
1338 | ||
1339 | static int | |
1340 | imm8 (const struct instruction *insn) | |
1341 | { | |
1342 | long imm; | |
1343 | if (! lex_imm (&imm)) | |
1344 | return 0; | |
1345 | if (imm > 127 || imm < -128) | |
1346 | { | |
1347 | as_bad (_("Immediate value %ld is out of range for instruction %s"), | |
1348 | imm, insn->name); | |
1349 | } | |
1350 | ||
1351 | char *f = s12z_new_insn (2); | |
1352 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1353 | number_to_chars_bigendian (f++, imm, 1); | |
1354 | ||
1355 | return 1; | |
1356 | } | |
1357 | ||
1358 | static int | |
1359 | reg_imm (const struct instruction *insn, int allowed_reg) | |
1360 | { | |
1361 | char *ilp = input_line_pointer; | |
1362 | int reg; | |
1363 | if (lex_reg_name (allowed_reg, ®)) | |
1364 | { | |
1365 | if (!lex_force_match (',')) | |
1366 | goto fail; | |
1367 | long imm; | |
1368 | if (! lex_imm (&imm)) | |
1369 | goto fail; | |
1370 | ||
1371 | short size = registers[reg].bytes; | |
1372 | char *f = s12z_new_insn (insn->page + size); | |
1373 | if (insn->page == 2) | |
1374 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1375 | ||
1376 | number_to_chars_bigendian (f++, insn->opc + reg, 1); | |
1377 | number_to_chars_bigendian (f++, imm, size); | |
1378 | return 1; | |
1379 | } | |
1380 | ||
1381 | fail: | |
1382 | fail_line_pointer = input_line_pointer; | |
1383 | input_line_pointer = ilp; | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | ||
1388 | static int | |
1389 | regd_imm (const struct instruction *insn) | |
1390 | { | |
1391 | return reg_imm (insn, REG_BIT_Dn); | |
1392 | } | |
1393 | ||
1394 | static int | |
1395 | regdxy_imm (const struct instruction *insn) | |
1396 | { | |
1397 | return reg_imm (insn, REG_BIT_Dn | REG_BIT_XY); | |
1398 | } | |
1399 | ||
1400 | ||
1401 | static int | |
1402 | regs_imm (const struct instruction *insn) | |
1403 | { | |
1404 | return reg_imm (insn, 0x1U << REG_S); | |
1405 | } | |
1406 | ||
1407 | static int | |
1408 | trap_imm (const struct instruction *insn ATTRIBUTE_UNUSED) | |
1409 | { | |
1410 | long imm = -1; | |
1411 | if (! lex_imm (&imm)) | |
1412 | goto fail; | |
1413 | ||
1414 | if (imm < 0x92 || imm > 0xFF || | |
1415 | (imm >= 0xA0 && imm <= 0xA7) || | |
1416 | (imm >= 0xB0 && imm <= 0xB7)) | |
1417 | { | |
1418 | as_bad (_("trap value %ld is not valid"), imm); | |
1419 | return 0; | |
1420 | } | |
1421 | else | |
1422 | { | |
1423 | char *f = s12z_new_insn (2); | |
1424 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1425 | number_to_chars_bigendian (f++, imm & 0xFF, 1); | |
1426 | return 1; | |
1427 | } | |
1428 | ||
1429 | return 1; | |
1430 | ||
1431 | fail: | |
1432 | fail_line_pointer = input_line_pointer; | |
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | ||
1437 | ||
1438 | /* Special one byte instruction CMP X, Y */ | |
1439 | static int | |
1440 | regx_regy (const struct instruction *insn) | |
1441 | { | |
1442 | int reg; | |
1443 | if (lex_reg_name (0x1U << REG_X, ®)) | |
1444 | { | |
1445 | if (lex_force_match (',')) | |
1446 | { | |
1447 | if (lex_reg_name (0x1U << REG_Y, ®)) | |
1448 | { | |
1449 | char *f = s12z_new_insn (1); | |
1450 | number_to_chars_bigendian (f, insn->opc, 1); | |
1451 | return 1; | |
1452 | } | |
1453 | } | |
1454 | } | |
1455 | return 0; | |
1456 | } | |
1457 | ||
1458 | /* Special one byte instruction SUB D6, X, Y */ | |
1459 | static int | |
1460 | regd6_regx_regy (const struct instruction *insn) | |
1461 | { | |
1462 | char *ilp = input_line_pointer; | |
1463 | int reg; | |
1464 | if (!lex_reg_name (0x1U << REG_D6, ®)) | |
1465 | goto fail; | |
1466 | ||
1467 | if (!lex_match (',')) | |
1468 | goto fail; | |
1469 | ||
1470 | if (!lex_reg_name (0x1U << REG_X, ®)) | |
1471 | goto fail; | |
1472 | ||
1473 | if (!lex_match (',')) | |
1474 | goto fail; | |
1475 | ||
1476 | if (!lex_reg_name (0x1U << REG_Y, ®)) | |
1477 | goto fail; | |
1478 | ||
1479 | char *f = s12z_new_insn (1); | |
1480 | number_to_chars_bigendian (f, insn->opc, 1); | |
1481 | return 1; | |
1482 | ||
1483 | fail: | |
1484 | fail_line_pointer = input_line_pointer; | |
1485 | input_line_pointer = ilp; | |
1486 | return 0; | |
1487 | } | |
1488 | ||
1489 | /* Special one byte instruction SUB D6, Y, X */ | |
1490 | static int | |
1491 | regd6_regy_regx (const struct instruction *insn) | |
1492 | { | |
1493 | char *ilp = input_line_pointer; | |
1494 | int reg; | |
1495 | if (!lex_reg_name (0x1U << REG_D6, ®)) | |
1496 | goto fail; | |
1497 | ||
1498 | if (!lex_match (',')) | |
1499 | goto fail; | |
1500 | ||
1501 | if (!lex_reg_name (0x1U << REG_Y, ®)) | |
1502 | goto fail; | |
1503 | ||
1504 | if (!lex_match (',')) | |
1505 | goto fail; | |
1506 | ||
1507 | if (!lex_reg_name (0x1U << REG_X, ®)) | |
1508 | goto fail; | |
1509 | ||
1510 | char *f = s12z_new_insn (1); | |
1511 | number_to_chars_bigendian (f, insn->opc, 1); | |
1512 | return 1; | |
1513 | ||
1514 | fail: | |
1515 | fail_line_pointer = input_line_pointer; | |
1516 | input_line_pointer = ilp; | |
1517 | return 0; | |
1518 | } | |
1519 | ||
1520 | static int | |
1521 | reg_opr (const struct instruction *insn, int allowed_regs) | |
1522 | { | |
1523 | char *ilp = input_line_pointer; | |
1524 | int reg; | |
1525 | if (lex_reg_name (allowed_regs, ®)) | |
1526 | { | |
1527 | if (!lex_force_match (',')) | |
1528 | goto fail; | |
1529 | ||
1530 | uint8_t buffer[4]; | |
1531 | int n_bytes; | |
1532 | expressionS exp; | |
1533 | if (lex_opr (buffer, &n_bytes, &exp)) | |
1534 | { | |
1535 | /* Large constant direct values are more efficiently encoded as ext24 mode. | |
1536 | Otherwise a decision has to be deferred to a relax. */ | |
1537 | if (exp.X_op == O_constant | |
1538 | && buffer[0] == 0xFA | |
1539 | && insn->alt_opc != 0) | |
1540 | { | |
1541 | char *f = s12z_new_insn (4); | |
1542 | ||
1543 | /* I don't think there are any instances of page 2 opcodes in this case */ | |
1544 | gas_assert (insn->page == 1); | |
1545 | ||
1546 | number_to_chars_bigendian (f++, insn->alt_opc + reg, 1); | |
1547 | ||
1548 | emit_ext24 (f, exp.X_add_number); | |
1549 | } | |
1550 | else | |
1551 | { | |
1552 | char *f = s12z_new_insn (n_bytes + insn->page); | |
1553 | ||
1554 | if (insn->page == 2) | |
1555 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
1556 | ||
1557 | number_to_chars_bigendian (f++, insn->opc + reg, 1); | |
1558 | ||
1559 | emit_opr (f, buffer, n_bytes, &exp); | |
1560 | } | |
1561 | ||
1562 | return 1; | |
1563 | } | |
1564 | } | |
1565 | ||
1566 | fail: | |
1567 | fail_line_pointer = input_line_pointer; | |
1568 | input_line_pointer = ilp; | |
1569 | return 0; | |
1570 | } | |
1571 | ||
1572 | ||
1573 | static int | |
1574 | regdxy_opr (const struct instruction *insn) | |
1575 | { | |
1576 | return reg_opr (insn, REG_BIT_Dn | REG_BIT_XY); | |
1577 | } | |
1578 | ||
1579 | static int | |
1580 | regd_opr (const struct instruction *insn) | |
1581 | { | |
1582 | return reg_opr (insn, REG_BIT_Dn); | |
1583 | } | |
1584 | ||
1585 | ||
1586 | static int | |
1587 | regs_opr (const struct instruction *insn) | |
1588 | { | |
1589 | return reg_opr (insn, 0x1U << REG_S); | |
1590 | } | |
1591 | ||
1592 | static int | |
1593 | imm_opr (const struct instruction *insn) | |
1594 | { | |
1595 | char *ilp = input_line_pointer; | |
1596 | long imm; | |
1597 | if (!lex_imm (&imm)) | |
1598 | goto fail; | |
1599 | ||
1600 | if (!lex_match (',')) | |
1601 | goto fail; | |
1602 | ||
1603 | uint8_t buffer[4]; | |
1604 | int n_bytes; | |
1605 | expressionS exp; | |
1606 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
1607 | goto fail; | |
1608 | ||
1609 | int size = size_from_suffix (insn, 0); | |
1610 | char *f = s12z_new_insn (1 + n_bytes + size); | |
1611 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1612 | ||
1613 | int i; | |
1614 | for (i = 0; i < size; ++i) | |
1615 | number_to_chars_bigendian (f++, imm >> (CHAR_BIT * (size - i - 1)), 1); | |
1616 | ||
1617 | emit_opr (f, buffer, n_bytes, &exp); | |
1618 | ||
1619 | return 1; | |
1620 | ||
1621 | fail: | |
1622 | fail_line_pointer = input_line_pointer; | |
1623 | input_line_pointer = ilp; | |
1624 | return 0; | |
1625 | } | |
1626 | ||
1627 | static int | |
1628 | opr_opr (const struct instruction *insn) | |
1629 | { | |
1630 | char *ilp = input_line_pointer; | |
1631 | ||
1632 | uint8_t buffer1[4]; | |
1633 | int n_bytes1; | |
1634 | expressionS exp1; | |
1635 | if (!lex_opr (buffer1, &n_bytes1, &exp1)) | |
1636 | goto fail; | |
1637 | ||
1638 | ||
1639 | if (!lex_match (',')) | |
1640 | goto fail; | |
1641 | ||
1642 | uint8_t buffer2[4]; | |
1643 | int n_bytes2; | |
1644 | expressionS exp2; | |
1645 | if (!lex_opr (buffer2, &n_bytes2, &exp2)) | |
1646 | goto fail; | |
1647 | ||
1648 | char *f = s12z_new_insn (1 + n_bytes1 + n_bytes2); | |
1649 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1650 | ||
1651 | f = emit_opr (f, buffer1, n_bytes1, &exp1); | |
1652 | f = emit_opr (f, buffer2, n_bytes2, &exp2); | |
1653 | ||
1654 | return 1; | |
1655 | ||
1656 | fail: | |
1657 | fail_line_pointer = input_line_pointer; | |
1658 | input_line_pointer = ilp; | |
1659 | return 0; | |
1660 | } | |
1661 | ||
1662 | static int | |
1663 | reg67sxy_opr (const struct instruction *insn) | |
1664 | { | |
1665 | int reg; | |
1666 | if (!lex_reg_name (REG_BIT_XYS | (0x1U << REG_D6) | (0x1U << REG_D7), ®)) | |
1667 | return 0; | |
1668 | ||
1669 | if (!lex_match (',')) | |
1670 | return 0; | |
1671 | ||
1672 | uint8_t buffer[4]; | |
1673 | int n_bytes; | |
1674 | expressionS exp; | |
1675 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
1676 | return 0; | |
1677 | ||
1678 | char *f = s12z_new_insn (1 + n_bytes); | |
1679 | number_to_chars_bigendian (f++, insn->opc + reg - REG_D6, 1); | |
1680 | emit_opr (f, buffer, n_bytes, &exp); | |
1681 | ||
1682 | return 1; | |
1683 | } | |
1684 | ||
1685 | static int | |
1686 | rotate (const struct instruction *insn, short dir) | |
1687 | { | |
1688 | uint8_t buffer[4]; | |
1689 | int n_bytes; | |
1690 | expressionS exp; | |
1691 | if (lex_opr (buffer, &n_bytes, &exp)) | |
1692 | { | |
1693 | char *f = s12z_new_insn (n_bytes + 2); | |
1694 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1695 | int size = size_from_suffix (insn, 0); | |
1696 | if (size < 0) | |
1697 | size = 1; | |
1698 | uint8_t sb = 0x24; | |
1699 | sb |= size - 1; | |
1700 | if (dir) | |
1701 | sb |= 0x40; | |
1702 | number_to_chars_bigendian (f++, sb, 1); | |
1703 | emit_opr (f, buffer, n_bytes, &exp); | |
1704 | ||
1705 | return 1; | |
1706 | } | |
1707 | ||
1708 | return 0; | |
1709 | } | |
1710 | ||
1711 | static int | |
1712 | rol (const struct instruction *insn) | |
1713 | { | |
1714 | return rotate (insn, 1); | |
1715 | } | |
1716 | ||
1717 | static int | |
1718 | ror (const struct instruction *insn) | |
1719 | { | |
1720 | return rotate (insn, 0); | |
1721 | } | |
1722 | ||
1723 | ||
1724 | /* Shift instruction with a register operand and an immediate #1 or #2 | |
1725 | left = 1; right = 0; | |
1726 | logical = 0; arithmetic = 1; | |
1727 | */ | |
1728 | static int | |
1729 | lex_shift_reg_imm1 (const struct instruction *insn, short type, short dir) | |
1730 | { | |
1731 | /* | |
1732 | This function is highly unusual and a bit wierd! | |
1733 | It first matches the input against a register {d0, d1, ... d7} followed by an immediate | |
1734 | {#1, #2}. | |
1735 | Then, it rewinds the input and parses it again as a OPR. | |
1736 | */ | |
1737 | char *ilp = input_line_pointer; | |
1738 | ||
1739 | int Dd; | |
1740 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1741 | { | |
1742 | goto fail; | |
1743 | } | |
1744 | ||
1745 | if (!lex_match (',')) | |
1746 | goto fail; | |
1747 | ||
1748 | long imm = -1; | |
1749 | if (!lex_imm (&imm)) | |
1750 | goto fail; | |
1751 | ||
1752 | if (imm != 1 && imm != 2) | |
1753 | goto fail; | |
1754 | input_line_pointer = ilp; | |
1755 | ||
1756 | /* Now parse the first operand again */ | |
1757 | ||
1758 | uint8_t buffer[4]; | |
1759 | int n_bytes; | |
1760 | ||
1761 | expressionS exp; | |
1762 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
1763 | goto fail; | |
1764 | ||
1765 | gas_assert (n_bytes == 1); | |
1766 | ||
1767 | uint8_t sb = 0x34; | |
1768 | sb |= dir << 6; | |
1769 | sb |= type << 7; | |
1770 | if (imm == 2) | |
1771 | sb |= 0x08; | |
1772 | ||
1773 | char *f = s12z_new_insn (3); | |
1774 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1775 | number_to_chars_bigendian (f++, sb, 1); | |
1776 | emit_opr (f, buffer, n_bytes, &exp); | |
1777 | ||
1778 | return 1; | |
1779 | ||
1780 | fail: | |
1781 | fail_line_pointer = input_line_pointer; | |
1782 | input_line_pointer = ilp; | |
1783 | return 0; | |
1784 | } | |
1785 | ||
1786 | /* Shift instruction with a register operand. | |
1787 | left = 1; right = 0; | |
1788 | logical = 0; arithmetic = 1; */ | |
1789 | static int | |
1790 | lex_shift_reg (const struct instruction *insn, short type, short dir) | |
1791 | { | |
1792 | int Dd, Ds, Dn; | |
1793 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1794 | { | |
1795 | goto fail; | |
1796 | } | |
1797 | ||
1798 | if (!lex_match (',')) | |
1799 | goto fail; | |
1800 | ||
1801 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
1802 | { | |
1803 | goto fail; | |
1804 | } | |
1805 | ||
1806 | if (!lex_match (',')) | |
1807 | goto fail; | |
1808 | ||
1809 | uint8_t sb = 0x10; | |
1810 | sb |= Ds; | |
1811 | sb |= dir << 6; | |
1812 | sb |= type << 7; | |
1813 | long imm; | |
1814 | if (lex_reg_name (REG_BIT_Dn, &Dn)) | |
1815 | { | |
1816 | char *f = s12z_new_insn (3); | |
1817 | number_to_chars_bigendian (f++, insn->opc | Dd, 1); | |
1818 | number_to_chars_bigendian (f++, sb, 1); | |
1819 | uint8_t xb = 0xb8; | |
1820 | xb |= Dn; | |
1821 | number_to_chars_bigendian (f++, xb, 1); | |
1822 | ||
1823 | return 1; | |
1824 | } | |
1825 | else if (lex_imm (&imm)) | |
1826 | { | |
1827 | if (imm < 0 || imm > 31) | |
1828 | { | |
1829 | as_bad (_("Shift value should be in the range [0,31]")); | |
1830 | goto fail; | |
1831 | } | |
1832 | ||
1833 | int n_bytes = 3; | |
1834 | if (imm == 1 || imm == 2) | |
1835 | { | |
1836 | n_bytes = 2; | |
1837 | sb &= ~0x10; | |
1838 | } | |
1839 | else | |
1840 | { | |
1841 | sb |= (imm & 0x01) << 3; | |
1842 | } | |
1843 | ||
1844 | char *f = s12z_new_insn (n_bytes); | |
1845 | number_to_chars_bigendian (f++, insn->opc | Dd, 1); | |
1846 | number_to_chars_bigendian (f++, sb, 1); | |
1847 | if (n_bytes > 2) | |
1848 | { | |
1849 | uint8_t xb = 0x70; | |
1850 | xb |= imm >> 1; | |
1851 | number_to_chars_bigendian (f++, xb, 1); | |
1852 | } | |
1853 | ||
1854 | return 1; | |
1855 | } | |
1856 | ||
1857 | fail: | |
1858 | fail_line_pointer = input_line_pointer; | |
1859 | return 0; | |
1860 | } | |
1861 | ||
1862 | static void | |
1863 | impute_shift_dir_and_type (const struct instruction *insn, short *type, short *dir) | |
1864 | { | |
1865 | *dir = -1; | |
1866 | *type = -1; | |
1867 | switch (insn->name[0]) | |
1868 | { | |
1869 | case 'l': | |
1870 | *type = 0; | |
1871 | break; | |
1872 | case 'a': | |
1873 | *type = 1; | |
1874 | break; | |
1875 | default: | |
1876 | as_fatal (_("Bad shift mode")); | |
1877 | break; | |
1878 | } | |
1879 | ||
1880 | switch (insn->name[2]) | |
1881 | { | |
1882 | case 'l': | |
1883 | *dir = 1; | |
1884 | break; | |
1885 | case 'r': | |
1886 | *dir = 0; | |
1887 | break; | |
1888 | default: | |
1889 | as_fatal (_("Bad shift *direction")); | |
1890 | break; | |
1891 | } | |
1892 | } | |
1893 | ||
1894 | /* Shift instruction with a OPR operand */ | |
1895 | static int | |
1896 | shift_two_operand (const struct instruction *insn) | |
1897 | { | |
1898 | uint8_t sb = 0x34; | |
1899 | char *ilp = input_line_pointer; | |
1900 | ||
1901 | short dir = -1; | |
1902 | short type = -1; | |
1903 | impute_shift_dir_and_type (insn, &type, &dir); | |
1904 | sb |= dir << 6; | |
1905 | sb |= type << 7; | |
1906 | ||
1907 | int size = size_from_suffix (insn, 0); | |
1908 | sb |= size - 1; | |
1909 | ||
1910 | uint8_t buffer[4]; | |
1911 | int n_opr_bytes; | |
1912 | expressionS exp; | |
1913 | if (!lex_opr (buffer, &n_opr_bytes, &exp)) | |
1914 | goto fail; | |
1915 | ||
1916 | if (!lex_match (',')) | |
1917 | goto fail; | |
1918 | ||
1919 | long imm = -1; | |
1920 | if (!lex_imm (&imm)) | |
1921 | goto fail; | |
1922 | ||
1923 | if (imm != 1 && imm != 2) | |
1924 | goto fail; | |
1925 | ||
1926 | if (imm == 2) | |
1927 | sb |= 0x08; | |
1928 | ||
1929 | char *f = s12z_new_insn (2 + n_opr_bytes); | |
1930 | number_to_chars_bigendian (f++, insn->opc, 1); | |
1931 | number_to_chars_bigendian (f++, sb, 1); | |
1932 | emit_opr (f, buffer, n_opr_bytes, &exp); | |
1933 | ||
1934 | return 1; | |
1935 | ||
1936 | fail: | |
1937 | fail_line_pointer = input_line_pointer; | |
1938 | input_line_pointer = ilp; | |
1939 | return 0; | |
1940 | } | |
1941 | ||
1942 | /* Shift instruction with a OPR operand */ | |
1943 | static int | |
1944 | shift_opr_imm (const struct instruction *insn) | |
1945 | { | |
1946 | char *ilp = input_line_pointer; | |
1947 | ||
1948 | short dir = -1; | |
1949 | short type = -1; | |
1950 | impute_shift_dir_and_type (insn, &type, &dir); | |
1951 | ||
1952 | int Dd = 0; | |
1953 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
1954 | goto fail; | |
1955 | ||
1956 | if (!lex_match (',')) | |
1957 | goto fail; | |
1958 | ||
1959 | int n_bytes = 2; | |
1960 | ||
1961 | uint8_t buffer1[4]; | |
1962 | int n_opr_bytes1; | |
1963 | ||
1964 | expressionS exp1; | |
1965 | if (!lex_opr (buffer1, &n_opr_bytes1, &exp1)) | |
1966 | goto fail; | |
1967 | ||
1968 | n_bytes += n_opr_bytes1; | |
1969 | if (!lex_match (',')) | |
1970 | goto fail; | |
1971 | ||
1972 | uint8_t buffer2[4]; | |
1973 | int n_opr_bytes2 = 0; | |
1974 | expressionS exp2; | |
1975 | long imm; | |
1976 | bool immediate = false; | |
1977 | if (lex_imm (&imm)) | |
1978 | { | |
1979 | immediate = true; | |
1980 | } | |
1981 | else if (!lex_opr (buffer2, &n_opr_bytes2, &exp2)) | |
1982 | goto fail; | |
1983 | ||
1984 | uint8_t sb = 0x20; | |
1985 | ||
1986 | int size = size_from_suffix (insn, 0); | |
1987 | ||
1988 | if (size != -1) | |
1989 | sb |= size - 1; | |
1990 | ||
1991 | sb |= dir << 6; | |
1992 | sb |= type << 7; | |
1993 | ||
1994 | if (immediate) | |
1995 | { | |
1996 | if (imm == 2 || imm == 1) | |
1997 | { | |
1998 | if (imm == 2) | |
1999 | sb |= 0x08; | |
2000 | } | |
2001 | else | |
2002 | { | |
2003 | n_bytes++; | |
2004 | sb |= 0x10; | |
2005 | if (imm % 2) | |
2006 | sb |= 0x08; | |
2007 | } | |
2008 | } | |
2009 | else | |
2010 | { | |
2011 | n_bytes += n_opr_bytes2; | |
2012 | sb |= 0x10; | |
2013 | } | |
2014 | ||
2015 | char *f = s12z_new_insn (n_bytes); | |
2016 | number_to_chars_bigendian (f++, insn->opc | Dd, 1); | |
2017 | number_to_chars_bigendian (f++, sb, 1); | |
2018 | f = emit_opr (f, buffer1, n_opr_bytes1, &exp1); | |
2019 | if (immediate) | |
2020 | { | |
2021 | if (imm != 1 && imm != 2) | |
2022 | { | |
2023 | number_to_chars_bigendian (f++, 0x70 | (imm >> 1), 1); | |
2024 | } | |
2025 | } | |
2026 | else | |
2027 | { | |
2028 | f = emit_opr (f, buffer2, n_opr_bytes2, &exp2); | |
2029 | } | |
2030 | ||
2031 | return 1; | |
2032 | ||
2033 | fail: | |
2034 | fail_line_pointer = input_line_pointer; | |
2035 | input_line_pointer = ilp; | |
2036 | return 0; | |
2037 | } | |
2038 | ||
2039 | /* Shift instruction with a register operand */ | |
2040 | static int | |
2041 | shift_reg (const struct instruction *insn) | |
2042 | { | |
2043 | short dir = -1; | |
2044 | short type = -1; | |
2045 | impute_shift_dir_and_type (insn, &type, &dir); | |
2046 | ||
2047 | if (lex_shift_reg_imm1 (insn, type, dir)) | |
2048 | return 1; | |
2049 | ||
2050 | return lex_shift_reg (insn, type, dir); | |
2051 | } | |
2052 | ||
2053 | static int | |
2054 | bm_regd_imm (const struct instruction *insn) | |
2055 | { | |
2056 | char *ilp = input_line_pointer; | |
2057 | int Di = 0; | |
2058 | if (!lex_reg_name (REG_BIT_Dn, &Di)) | |
2059 | goto fail; | |
2060 | ||
2061 | if (!lex_match (',')) | |
2062 | goto fail; | |
2063 | ||
2064 | long imm; | |
2065 | if (!lex_imm (&imm)) | |
2066 | goto fail; | |
2067 | ||
2068 | ||
2069 | uint8_t bm = imm << 3; | |
2070 | bm |= Di; | |
2071 | ||
2072 | char *f = s12z_new_insn (2); | |
2073 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2074 | number_to_chars_bigendian (f++, bm, 1); | |
2075 | ||
2076 | return 1; | |
2077 | ||
2078 | fail: | |
2079 | fail_line_pointer = input_line_pointer; | |
2080 | input_line_pointer = ilp; | |
2081 | return 0; | |
2082 | } | |
2083 | ||
2084 | static int | |
2085 | bm_opr_reg (const struct instruction *insn) | |
2086 | { | |
2087 | char *ilp = input_line_pointer; | |
2088 | ||
2089 | uint8_t buffer[4]; | |
2090 | int n_opr_bytes; | |
2091 | ||
2092 | expressionS exp; | |
2093 | if (!lex_opr (buffer, &n_opr_bytes, &exp)) | |
2094 | goto fail; | |
2095 | ||
2096 | if (!lex_match (',')) | |
2097 | goto fail; | |
2098 | ||
2099 | int Dn = 0; | |
2100 | if (!lex_reg_name (REG_BIT_Dn, &Dn)) | |
2101 | goto fail; | |
2102 | ||
2103 | uint8_t bm = Dn << 4; | |
2104 | int size = size_from_suffix (insn, 0); | |
2105 | bm |= (size - 1) << 2; | |
2106 | bm |= 0x81; | |
2107 | ||
2108 | char *f = s12z_new_insn (2 + n_opr_bytes); | |
2109 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2110 | number_to_chars_bigendian (f++, bm, 1); | |
2111 | ||
2112 | emit_opr (f, buffer, n_opr_bytes, &exp); | |
2113 | ||
2114 | return 1; | |
2115 | ||
2116 | fail: | |
2117 | fail_line_pointer = input_line_pointer; | |
2118 | input_line_pointer = ilp; | |
2119 | return 0; | |
2120 | } | |
2121 | ||
2122 | ||
2123 | static int | |
2124 | bm_opr_imm (const struct instruction *insn) | |
2125 | { | |
2126 | char *ilp = input_line_pointer; | |
2127 | ||
2128 | uint8_t buffer[4]; | |
2129 | int n_opr_bytes; | |
2130 | ||
2131 | expressionS exp; | |
2132 | if (!lex_opr (buffer, &n_opr_bytes, &exp)) | |
2133 | goto fail; | |
2134 | ||
2135 | if (!lex_match (',')) | |
2136 | goto fail; | |
2137 | ||
2138 | ||
2139 | long imm; | |
2140 | if (!lex_imm (&imm)) | |
2141 | goto fail; | |
2142 | ||
2143 | int size = size_from_suffix (insn, 0); | |
2144 | ||
2145 | if (imm < 0 || imm >= size * 8) | |
2146 | { | |
2147 | as_bad (_("Immediate operand %ld is inappropriate for size of instruction"), imm); | |
2148 | goto fail; | |
2149 | } | |
2150 | ||
2151 | uint8_t bm = 0x80; | |
2152 | if (size == 2) | |
2153 | bm |= 0x02; | |
2154 | else if (size == 4) | |
2155 | bm |= 0x08; | |
2156 | bm |= (imm & 0x07) << 4; | |
2157 | bm |= (imm >> 3); | |
2158 | ||
2159 | ||
2160 | char *f = s12z_new_insn (2 + n_opr_bytes); | |
2161 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2162 | number_to_chars_bigendian (f++, bm, 1); | |
2163 | emit_opr (f, buffer, n_opr_bytes, &exp); | |
2164 | ||
2165 | return 1; | |
2166 | ||
2167 | fail: | |
2168 | fail_line_pointer = input_line_pointer; | |
2169 | input_line_pointer = ilp; | |
2170 | return 0; | |
2171 | } | |
2172 | ||
2173 | ||
2174 | static int | |
2175 | bm_regd_reg (const struct instruction *insn) | |
2176 | { | |
2177 | char *ilp = input_line_pointer; | |
2178 | int Di = 0; | |
2179 | if (!lex_reg_name (REG_BIT_Dn, &Di)) | |
2180 | goto fail; | |
2181 | ||
2182 | if (!lex_match (',')) | |
2183 | goto fail; | |
2184 | ||
2185 | int Dn = 0; | |
2186 | if (!lex_reg_name (REG_BIT_Dn, &Dn)) | |
2187 | goto fail; | |
2188 | ||
2189 | uint8_t bm = Dn << 4; | |
2190 | bm |= 0x81; | |
2191 | ||
2192 | uint8_t xb = Di | 0xb8; | |
2193 | ||
2194 | char *f = s12z_new_insn (3); | |
2195 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2196 | number_to_chars_bigendian (f++, bm, 1); | |
2197 | number_to_chars_bigendian (f++, xb, 1); | |
2198 | ||
2199 | return 1; | |
2200 | ||
2201 | fail: | |
2202 | fail_line_pointer = input_line_pointer; | |
2203 | input_line_pointer = ilp; | |
2204 | return 0; | |
2205 | } | |
2206 | ||
2207 | ||
2208 | \f | |
2209 | ||
2210 | ||
2211 | static int | |
2212 | bf_reg_opr_imm (const struct instruction *insn, short ie) | |
2213 | { | |
2214 | char *ilp = input_line_pointer; | |
2215 | int Dd = 0; | |
2216 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
2217 | goto fail; | |
2218 | ||
2219 | if (!lex_match (',')) | |
2220 | goto fail; | |
2221 | ||
2222 | uint8_t buffer[4]; | |
2223 | int n_bytes; | |
2224 | ||
2225 | expressionS exp; | |
2226 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2227 | goto fail; | |
2228 | ||
2229 | if (!lex_match (',')) | |
2230 | goto fail; | |
2231 | ||
2232 | long width; | |
2233 | if (!lex_imm (&width)) | |
2234 | goto fail; | |
2235 | ||
2236 | if (width < 0 || width > 31) | |
2237 | { | |
2238 | as_bad (_("Invalid width value for %s"), insn->name); | |
2239 | goto fail; | |
2240 | } | |
2241 | ||
2242 | if (!lex_match (':')) | |
2243 | goto fail; | |
2244 | ||
2245 | long offset; | |
2246 | if (!lex_constant (&offset)) | |
2247 | goto fail; | |
2248 | ||
2249 | if (offset < 0 || offset > 31) | |
2250 | { | |
2251 | as_bad (_("Invalid offset value for %s"), insn->name); | |
2252 | goto fail; | |
2253 | } | |
2254 | ||
2255 | uint8_t i1 = width << 5; | |
2256 | i1 |= offset; | |
2257 | ||
2258 | int size = size_from_suffix (insn, 0); | |
2259 | uint8_t bb = ie ? 0x80 : 0x00; | |
2260 | bb |= 0x60; | |
2261 | bb |= (size - 1) << 2; | |
2262 | bb |= width >> 3; | |
2263 | ||
2264 | char *f = s12z_new_insn (4 + n_bytes); | |
2265 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2266 | number_to_chars_bigendian (f++, 0x08 | Dd, 1); | |
2267 | number_to_chars_bigendian (f++, bb, 1); | |
2268 | number_to_chars_bigendian (f++, i1, 1); | |
2269 | ||
2270 | emit_opr (f, buffer, n_bytes, &exp); | |
2271 | ||
2272 | return 1; | |
2273 | ||
2274 | fail: | |
2275 | fail_line_pointer = input_line_pointer; | |
2276 | input_line_pointer = ilp; | |
2277 | return 0; | |
2278 | } | |
2279 | ||
2280 | ||
2281 | static int | |
2282 | bf_opr_reg_imm (const struct instruction *insn, short ie) | |
2283 | { | |
2284 | char *ilp = input_line_pointer; | |
2285 | uint8_t buffer[4]; | |
2286 | int n_bytes; | |
2287 | expressionS exp; | |
2288 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2289 | goto fail; | |
2290 | ||
2291 | if (!lex_match (',')) | |
2292 | goto fail; | |
2293 | ||
2294 | int Ds = 0; | |
2295 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
2296 | goto fail; | |
2297 | ||
2298 | if (!lex_match (',')) | |
2299 | goto fail; | |
2300 | ||
2301 | long width; | |
2302 | if (!lex_imm (&width)) | |
2303 | goto fail; | |
2304 | ||
2305 | if (width < 0 || width > 31) | |
2306 | { | |
2307 | as_bad (_("Invalid width value for %s"), insn->name); | |
2308 | goto fail; | |
2309 | } | |
2310 | ||
2311 | if (!lex_match (':')) | |
2312 | goto fail; | |
2313 | ||
2314 | long offset; | |
2315 | if (!lex_constant (&offset)) | |
2316 | goto fail; | |
2317 | ||
2318 | if (offset < 0 || offset > 31) | |
2319 | { | |
2320 | as_bad (_("Invalid offset value for %s"), insn->name); | |
2321 | goto fail; | |
2322 | } | |
2323 | ||
2324 | uint8_t i1 = width << 5; | |
2325 | i1 |= offset; | |
2326 | ||
2327 | int size = size_from_suffix (insn, 0); | |
2328 | uint8_t bb = ie ? 0x80 : 0x00; | |
2329 | bb |= 0x70; | |
2330 | bb |= (size - 1) << 2; | |
2331 | bb |= width >> 3; | |
2332 | ||
2333 | char *f = s12z_new_insn (4 + n_bytes); | |
2334 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2335 | number_to_chars_bigendian (f++, 0x08 | Ds, 1); | |
2336 | number_to_chars_bigendian (f++, bb, 1); | |
2337 | number_to_chars_bigendian (f++, i1, 1); | |
2338 | ||
2339 | emit_opr (f, buffer, n_bytes, &exp); | |
2340 | ||
2341 | return 1; | |
2342 | ||
2343 | fail: | |
2344 | fail_line_pointer = input_line_pointer; | |
2345 | input_line_pointer = ilp; | |
2346 | return 0; | |
2347 | } | |
2348 | ||
2349 | ||
2350 | ||
2351 | static int | |
2352 | bf_reg_reg_imm (const struct instruction *insn, short ie) | |
2353 | { | |
2354 | char *ilp = input_line_pointer; | |
2355 | int Dd = 0; | |
2356 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
2357 | goto fail; | |
2358 | ||
2359 | if (!lex_match (',')) | |
2360 | goto fail; | |
2361 | ||
2362 | int Ds = 0; | |
2363 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
2364 | goto fail; | |
2365 | ||
2366 | if (!lex_match (',')) | |
2367 | goto fail; | |
2368 | ||
2369 | long width; | |
2370 | if (!lex_imm (&width)) | |
2371 | goto fail; | |
2372 | ||
2373 | if (width < 0 || width > 31) | |
2374 | { | |
2375 | as_bad (_("Invalid width value for %s"), insn->name); | |
2376 | goto fail; | |
2377 | } | |
2378 | ||
2379 | if (!lex_match (':')) | |
2380 | goto fail; | |
2381 | ||
2382 | long offset; | |
2383 | if (!lex_constant (&offset)) | |
2384 | goto fail; | |
2385 | ||
2386 | if (offset < 0 || offset > 31) | |
2387 | { | |
2388 | as_bad (_("Invalid offset value for %s"), insn->name); | |
2389 | goto fail; | |
2390 | } | |
2391 | ||
2392 | uint8_t bb = ie ? 0x80 : 0x00; | |
2393 | bb |= 0x20; | |
2394 | bb |= Ds << 2; | |
2395 | bb |= width >> 3; | |
2396 | ||
2397 | uint8_t i1 = width << 5; | |
2398 | i1 |= offset; | |
2399 | ||
2400 | char *f = s12z_new_insn (4); | |
2401 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2402 | number_to_chars_bigendian (f++, 0x08 | Dd, 1); | |
2403 | number_to_chars_bigendian (f++, bb, 1); | |
2404 | number_to_chars_bigendian (f++, i1, 1); | |
2405 | ||
2406 | return 1; | |
2407 | ||
2408 | fail: | |
2409 | fail_line_pointer = input_line_pointer; | |
2410 | input_line_pointer = ilp; | |
2411 | return 0; | |
2412 | } | |
2413 | ||
2414 | static int | |
2415 | bf_reg_reg_reg (const struct instruction *insn ATTRIBUTE_UNUSED, short ie) | |
2416 | { | |
2417 | char *ilp = input_line_pointer; | |
2418 | int Dd = 0; | |
2419 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
2420 | goto fail; | |
2421 | ||
2422 | if (!lex_match (',')) | |
2423 | goto fail; | |
2424 | ||
2425 | int Ds = 0; | |
2426 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
2427 | goto fail; | |
2428 | ||
2429 | if (!lex_match (',')) | |
2430 | goto fail; | |
2431 | ||
2432 | int Dp = 0; | |
2433 | if (!lex_reg_name ((0x01u << REG_D2) | | |
2434 | (0x01u << REG_D3) | | |
2435 | (0x01u << REG_D4) | | |
2436 | (0x01u << REG_D5), | |
2437 | &Dp)) | |
2438 | goto fail; | |
2439 | ||
2440 | uint8_t bb = ie ? 0x80 : 0x00; | |
2441 | bb |= Ds << 2; | |
2442 | bb |= Dp; | |
2443 | ||
2444 | char *f = s12z_new_insn (3); | |
2445 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2446 | number_to_chars_bigendian (f++, 0x08 | Dd, 1); | |
2447 | number_to_chars_bigendian (f++, bb , 1); | |
2448 | ||
2449 | return 1; | |
2450 | ||
2451 | fail: | |
2452 | fail_line_pointer = input_line_pointer; | |
2453 | input_line_pointer = ilp; | |
2454 | return 0; | |
2455 | } | |
2456 | ||
2457 | static int | |
2458 | bf_opr_reg_reg (const struct instruction *insn, short ie) | |
2459 | { | |
2460 | char *ilp = input_line_pointer; | |
2461 | ||
2462 | uint8_t buffer[4]; | |
2463 | int n_bytes; | |
2464 | expressionS exp; | |
2465 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2466 | goto fail; | |
2467 | ||
2468 | if (!lex_match (',')) | |
2469 | goto fail; | |
2470 | ||
2471 | ||
2472 | int Ds = 0; | |
2473 | if (!lex_reg_name (REG_BIT_Dn, &Ds)) | |
2474 | goto fail; | |
2475 | ||
2476 | if (!lex_match (',')) | |
2477 | goto fail; | |
2478 | ||
2479 | ||
2480 | int Dp = 0; | |
2481 | if (!lex_reg_name ((0x01u << REG_D2) | | |
2482 | (0x01u << REG_D3) | | |
2483 | (0x01u << REG_D4) | | |
2484 | (0x01u << REG_D5), | |
2485 | &Dp)) | |
2486 | goto fail; | |
2487 | ||
2488 | int size = size_from_suffix (insn, 0); | |
2489 | uint8_t bb = ie ? 0x80 : 0x00; | |
2490 | bb |= 0x50; | |
2491 | bb |= Dp; | |
2492 | bb |= (size - 1) << 2; | |
2493 | ||
2494 | char *f = s12z_new_insn (3 + n_bytes); | |
2495 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2496 | number_to_chars_bigendian (f++, 0x08 | Ds, 1); | |
2497 | number_to_chars_bigendian (f++, bb , 1); | |
2498 | ||
2499 | emit_opr (f, buffer, n_bytes, &exp); | |
2500 | ||
2501 | return 1; | |
2502 | ||
2503 | fail: | |
2504 | fail_line_pointer = input_line_pointer; | |
2505 | input_line_pointer = ilp; | |
2506 | return 0; | |
2507 | } | |
2508 | ||
2509 | ||
2510 | static int | |
2511 | bf_reg_opr_reg (const struct instruction *insn, short ie) | |
2512 | { | |
2513 | char *ilp = input_line_pointer; | |
2514 | int Dd = 0; | |
2515 | if (!lex_reg_name (REG_BIT_Dn, &Dd)) | |
2516 | goto fail; | |
2517 | ||
2518 | if (!lex_match (',')) | |
2519 | goto fail; | |
2520 | ||
2521 | ||
2522 | uint8_t buffer[4]; | |
2523 | int n_bytes; | |
2524 | expressionS exp; | |
2525 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2526 | goto fail; | |
2527 | ||
2528 | if (!lex_match (',')) | |
2529 | goto fail; | |
2530 | ||
2531 | int Dp = 0; | |
2532 | if (!lex_reg_name ((0x01u << REG_D2) | | |
2533 | (0x01u << REG_D3) | | |
2534 | (0x01u << REG_D4) | | |
2535 | (0x01u << REG_D5), | |
2536 | &Dp)) | |
2537 | goto fail; | |
2538 | ||
2539 | int size = size_from_suffix (insn, 0); | |
2540 | uint8_t bb = ie ? 0x80 : 0x00; | |
2541 | bb |= 0x40; | |
2542 | bb |= Dp; | |
2543 | bb |= (size - 1) << 2; | |
2544 | ||
2545 | char *f = s12z_new_insn (3 + n_bytes); | |
2546 | number_to_chars_bigendian (f++, PAGE2_PREBYTE, 1); | |
2547 | number_to_chars_bigendian (f++, 0x08 | Dd, 1); | |
2548 | number_to_chars_bigendian (f++, bb , 1); | |
2549 | ||
2550 | emit_opr (f, buffer, n_bytes, &exp); | |
2551 | ||
2552 | return 1; | |
2553 | ||
2554 | fail: | |
2555 | fail_line_pointer = input_line_pointer; | |
2556 | input_line_pointer = ilp; | |
2557 | return 0; | |
2558 | } | |
2559 | ||
2560 | ||
2561 | ||
2562 | static int | |
2563 | bfe_reg_reg_reg (const struct instruction *insn) | |
2564 | { | |
2565 | return bf_reg_reg_reg (insn, 0); | |
2566 | } | |
2567 | ||
2568 | static int | |
2569 | bfi_reg_reg_reg (const struct instruction *insn) | |
2570 | { | |
2571 | return bf_reg_reg_reg (insn, 1); | |
2572 | } | |
2573 | ||
2574 | static int | |
2575 | bfe_reg_reg_imm (const struct instruction *insn) | |
2576 | { | |
2577 | return bf_reg_reg_imm (insn, 0); | |
2578 | } | |
2579 | ||
2580 | static int | |
2581 | bfi_reg_reg_imm (const struct instruction *insn) | |
2582 | { | |
2583 | return bf_reg_reg_imm (insn, 1); | |
2584 | } | |
2585 | ||
2586 | ||
2587 | static int | |
2588 | bfe_reg_opr_reg (const struct instruction *insn) | |
2589 | { | |
2590 | return bf_reg_opr_reg (insn, 0); | |
2591 | } | |
2592 | ||
2593 | static int | |
2594 | bfi_reg_opr_reg (const struct instruction *insn) | |
2595 | { | |
2596 | return bf_reg_opr_reg (insn, 1); | |
2597 | } | |
2598 | ||
2599 | ||
2600 | static int | |
2601 | bfe_opr_reg_reg (const struct instruction *insn) | |
2602 | { | |
2603 | return bf_opr_reg_reg (insn, 0); | |
2604 | } | |
2605 | ||
2606 | static int | |
2607 | bfi_opr_reg_reg (const struct instruction *insn) | |
2608 | { | |
2609 | return bf_opr_reg_reg (insn, 1); | |
2610 | } | |
2611 | ||
2612 | static int | |
2613 | bfe_reg_opr_imm (const struct instruction *insn) | |
2614 | { | |
2615 | return bf_reg_opr_imm (insn, 0); | |
2616 | } | |
2617 | ||
2618 | static int | |
2619 | bfi_reg_opr_imm (const struct instruction *insn) | |
2620 | { | |
2621 | return bf_reg_opr_imm (insn, 1); | |
2622 | } | |
2623 | ||
2624 | static int | |
2625 | bfe_opr_reg_imm (const struct instruction *insn) | |
2626 | { | |
2627 | return bf_opr_reg_imm (insn, 0); | |
2628 | } | |
2629 | ||
2630 | static int | |
2631 | bfi_opr_reg_imm (const struct instruction *insn) | |
2632 | { | |
2633 | return bf_opr_reg_imm (insn, 1); | |
2634 | } | |
2635 | ||
2636 | \f | |
2637 | ||
2638 | ||
2639 | static int | |
2640 | tb_reg_rel (const struct instruction *insn) | |
2641 | { | |
2642 | char *ilp = input_line_pointer; | |
2643 | ||
2644 | int reg; | |
2645 | if (!lex_reg_name (REG_BIT_Dn | REG_BIT_XY, ®)) | |
2646 | goto fail; | |
2647 | ||
2648 | if (!lex_match (',')) | |
2649 | goto fail; | |
2650 | ||
2651 | bool long_displacement; | |
2652 | expressionS exp; | |
2653 | if (! lex_15_bit_offset (&long_displacement, &exp)) | |
2654 | goto fail; | |
2655 | ||
2656 | uint8_t lb = 0x00; | |
2657 | if (reg == REG_X || reg == REG_Y) | |
2658 | { | |
2659 | lb |= 0x08; | |
2660 | } | |
2661 | else | |
2662 | { | |
2663 | lb |= reg; | |
2664 | } | |
2665 | if (reg == REG_Y) | |
2666 | lb |= 0x01; | |
2667 | ||
2668 | if (0 == strncmp (insn->name + 2, "ne", 2)) | |
2669 | lb |= 0x00 << 4; | |
2670 | else if (0 == strncmp (insn->name + 2, "eq", 2)) | |
2671 | lb |= 0x01 << 4; | |
2672 | else if (0 == strncmp (insn->name + 2, "pl", 2)) | |
2673 | lb |= 0x02 << 4; | |
2674 | else if (0 == strncmp (insn->name + 2, "mi", 2)) | |
2675 | lb |= 0x03 << 4; | |
2676 | else if (0 == strncmp (insn->name + 2, "gt", 2)) | |
2677 | lb |= 0x04 << 4; | |
2678 | else if (0 == strncmp (insn->name + 2, "le", 2)) | |
2679 | lb |= 0x05 << 4; | |
2680 | ||
2681 | switch (insn->name[0]) | |
2682 | { | |
2683 | case 'd': | |
2684 | lb |= 0x80; | |
2685 | break; | |
2686 | case 't': | |
2687 | break; | |
2688 | default: | |
2689 | gas_assert (0); | |
2690 | break; | |
2691 | }; | |
2692 | ||
2693 | char *f = s12z_new_insn (long_displacement ? 4 : 3); | |
2694 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2695 | number_to_chars_bigendian (f++, lb, 1); | |
2696 | ||
2697 | emit_15_bit_offset (f, 4, &exp); | |
2698 | ||
2699 | return 1; | |
2700 | ||
2701 | fail: | |
2702 | fail_line_pointer = input_line_pointer; | |
2703 | input_line_pointer = ilp; | |
2704 | return 0; | |
2705 | } | |
2706 | ||
2707 | ||
2708 | static int | |
2709 | tb_opr_rel (const struct instruction *insn) | |
2710 | { | |
2711 | char *ilp = input_line_pointer; | |
2712 | ||
2713 | uint8_t buffer[4]; | |
2714 | int n_bytes; | |
2715 | expressionS exp; | |
2716 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2717 | goto fail; | |
2718 | ||
2719 | if (!lex_match (',')) | |
2720 | goto fail; | |
2721 | ||
2722 | bool long_displacement; | |
2723 | expressionS exp2; | |
2724 | if (! lex_15_bit_offset (&long_displacement, &exp2)) | |
2725 | goto fail; | |
2726 | ||
2727 | uint8_t lb = 0x0C; | |
2728 | ||
2729 | if (0 == strncmp (insn->name + 2, "ne", 2)) | |
2730 | lb |= 0x00 << 4; | |
2731 | else if (0 == strncmp (insn->name + 2, "eq", 2)) | |
2732 | lb |= 0x01 << 4; | |
2733 | else if (0 == strncmp (insn->name + 2, "pl", 2)) | |
2734 | lb |= 0x02 << 4; | |
2735 | else if (0 == strncmp (insn->name + 2, "mi", 2)) | |
2736 | lb |= 0x03 << 4; | |
2737 | else if (0 == strncmp (insn->name + 2, "gt", 2)) | |
2738 | lb |= 0x04 << 4; | |
2739 | else if (0 == strncmp (insn->name + 2, "le", 2)) | |
2740 | lb |= 0x05 << 4; | |
2741 | ||
2742 | switch (insn->name[0]) | |
2743 | { | |
2744 | case 'd': | |
2745 | lb |= 0x80; | |
2746 | break; | |
2747 | case 't': | |
2748 | break; | |
2749 | default: | |
2750 | gas_assert (0); | |
2751 | break; | |
2752 | }; | |
2753 | ||
2754 | int size = size_from_suffix (insn, 0); | |
2755 | ||
2756 | lb |= size -1; | |
2757 | ||
2758 | char *f = s12z_new_insn (n_bytes + (long_displacement ? 4 : 3)); | |
2759 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2760 | number_to_chars_bigendian (f++, lb, 1); | |
2761 | f = emit_opr (f, buffer, n_bytes, &exp); | |
2762 | ||
2763 | emit_15_bit_offset (f, n_bytes + 4, &exp2); | |
2764 | ||
2765 | return 1; | |
2766 | ||
2767 | fail: | |
2768 | fail_line_pointer = input_line_pointer; | |
2769 | input_line_pointer = ilp; | |
2770 | return 0; | |
2771 | } | |
2772 | ||
2773 | \f | |
2774 | ||
2775 | ||
2776 | static int | |
2777 | test_br_reg_reg_rel (const struct instruction *insn) | |
2778 | { | |
2779 | char *ilp = input_line_pointer; | |
2780 | ||
2781 | int Di = 0; | |
2782 | if (!lex_reg_name (REG_BIT_Dn, &Di)) | |
2783 | goto fail; | |
2784 | ||
2785 | if (!lex_match (',')) | |
2786 | goto fail; | |
2787 | ||
2788 | ||
2789 | int Dn = 0; | |
2790 | if (!lex_reg_name (REG_BIT_Dn, &Dn)) | |
2791 | goto fail; | |
2792 | ||
2793 | if (!lex_match (',')) | |
2794 | goto fail; | |
2795 | ||
2796 | ||
2797 | bool long_displacement; | |
2798 | expressionS exp; | |
2799 | if (! lex_15_bit_offset (&long_displacement, &exp)) | |
2800 | goto fail; | |
2801 | ||
2802 | uint8_t bm = 0x81; | |
2803 | uint8_t xb = 0xb8; | |
2804 | ||
2805 | bm |= Dn << 4; | |
2806 | xb |= Di; | |
2807 | ||
2808 | char *f = s12z_new_insn (long_displacement ? 5 : 4); | |
2809 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2810 | number_to_chars_bigendian (f++, bm, 1); | |
2811 | number_to_chars_bigendian (f++, xb, 1); | |
2812 | ||
2813 | emit_15_bit_offset (f, 5, &exp); | |
2814 | ||
2815 | return 1; | |
2816 | ||
2817 | fail: | |
2818 | fail_line_pointer = input_line_pointer; | |
2819 | input_line_pointer = ilp; | |
2820 | return 0; | |
2821 | } | |
2822 | ||
2823 | static int | |
2824 | test_br_opr_reg_rel (const struct instruction *insn) | |
2825 | { | |
2826 | char *ilp = input_line_pointer; | |
2827 | ||
2828 | uint8_t buffer[4]; | |
2829 | int n_bytes; | |
2830 | expressionS exp; | |
2831 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2832 | goto fail; | |
2833 | ||
2834 | if (!lex_match (',')) | |
2835 | goto fail; | |
2836 | ||
2837 | int Dn = 0; | |
2838 | if (!lex_reg_name (REG_BIT_Dn, &Dn)) | |
2839 | goto fail; | |
2840 | ||
2841 | if (!lex_match (',')) | |
2842 | goto fail; | |
2843 | ||
2844 | uint8_t bm = 0x81; | |
2845 | bm |= Dn << 4; | |
2846 | int size = size_from_suffix (insn, 0); | |
2847 | bm |= (size -1) << 2; | |
2848 | ||
2849 | bool long_displacement; | |
2850 | ||
2851 | expressionS exp2; | |
2852 | if (! lex_15_bit_offset (&long_displacement, &exp2)) | |
2853 | goto fail; | |
2854 | ||
2855 | int n = n_bytes + (long_displacement ? 4 : 3); | |
2856 | char *f = s12z_new_insn (n); | |
2857 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2858 | number_to_chars_bigendian (f++, bm, 1); | |
2859 | f = emit_opr (f, buffer, n_bytes, &exp); | |
2860 | ||
2861 | emit_15_bit_offset (f, n, &exp2); | |
2862 | ||
2863 | return 1; | |
2864 | ||
2865 | fail: | |
2866 | fail_line_pointer = input_line_pointer; | |
2867 | input_line_pointer = ilp; | |
2868 | return 0; | |
2869 | } | |
2870 | ||
2871 | ||
2872 | static int | |
2873 | test_br_opr_imm_rel (const struct instruction *insn) | |
2874 | { | |
2875 | char *ilp = input_line_pointer; | |
2876 | ||
2877 | uint8_t buffer[4]; | |
2878 | int n_bytes; | |
2879 | expressionS exp; | |
2880 | if (!lex_opr (buffer, &n_bytes, &exp)) | |
2881 | goto fail; | |
2882 | ||
2883 | if (!lex_match (',')) | |
2884 | goto fail; | |
2885 | ||
2886 | long imm; | |
2887 | if (!lex_imm (&imm)) | |
2888 | goto fail; | |
2889 | ||
2890 | if (imm < 0 || imm > 31) | |
2891 | goto fail; | |
2892 | ||
2893 | if (!lex_match (',')) | |
2894 | goto fail; | |
2895 | ||
2896 | bool long_displacement; | |
2897 | expressionS exp2; | |
2898 | if (! lex_15_bit_offset (&long_displacement, &exp2)) | |
2899 | goto fail; | |
2900 | ||
2901 | int size = size_from_suffix (insn, 0); | |
2902 | ||
2903 | uint8_t bm = 0x80; | |
2904 | bm |= (imm & 0x07) << 4; | |
2905 | bm |= (imm >> 3) & 0x03; | |
2906 | if (size == 4) | |
2907 | bm |= 0x08; | |
2908 | else if (size == 2) | |
2909 | bm |= 0x02; | |
2910 | ||
2911 | char *f = s12z_new_insn (n_bytes + (long_displacement ? 4 : 3)); | |
2912 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2913 | number_to_chars_bigendian (f++, bm, 1); | |
2914 | f = emit_opr (f, buffer, n_bytes, &exp); | |
2915 | ||
2916 | emit_15_bit_offset (f, n_bytes + 4, &exp2); | |
2917 | ||
2918 | return 1; | |
2919 | ||
2920 | fail: | |
2921 | fail_line_pointer = input_line_pointer; | |
2922 | input_line_pointer = ilp; | |
2923 | return 0; | |
2924 | } | |
2925 | ||
2926 | ||
2927 | static int | |
2928 | test_br_reg_imm_rel (const struct instruction *insn) | |
2929 | { | |
2930 | char *ilp = input_line_pointer; | |
2931 | ||
2932 | int Di = 0; | |
2933 | if (!lex_reg_name (REG_BIT_Dn, &Di)) | |
2934 | goto fail; | |
2935 | ||
2936 | if (!lex_match (',')) | |
2937 | goto fail; | |
2938 | ||
2939 | long imm; | |
2940 | if (!lex_imm (&imm)) | |
2941 | goto fail; | |
2942 | ||
2943 | if (imm < 0 || imm > 31) | |
2944 | goto fail; | |
2945 | ||
2946 | ||
2947 | if (!lex_match (',')) | |
2948 | goto fail; | |
2949 | ||
2950 | bool long_displacement; | |
2951 | expressionS exp; | |
2952 | if (! lex_15_bit_offset (&long_displacement, &exp)) | |
2953 | goto fail; | |
2954 | ||
2955 | uint8_t bm = Di; | |
2956 | bm |= imm << 3; | |
2957 | ||
2958 | char *f = s12z_new_insn (long_displacement ? 4 : 3); | |
2959 | number_to_chars_bigendian (f++, insn->opc, 1); | |
2960 | number_to_chars_bigendian (f++, bm, 1); | |
2961 | ||
2962 | emit_15_bit_offset (f, 4, &exp); | |
2963 | ||
2964 | return 1; | |
2965 | ||
2966 | fail: | |
2967 | fail_line_pointer = input_line_pointer; | |
2968 | input_line_pointer = ilp; | |
2969 | return 0; | |
2970 | } | |
2971 | ||
2972 | ||
2973 | \f | |
2974 | ||
2975 | static const struct instruction opcodes[] = { | |
2976 | {"bgnd", 1, 0x00, no_operands, 0}, | |
2977 | {"nop", 1, 0x01, no_operands, 0}, | |
2978 | ||
2979 | {"brclr", 1, 0x02, test_br_reg_reg_rel, 0}, | |
2980 | {"brset", 1, 0x03, test_br_reg_reg_rel, 0}, | |
2981 | ||
2982 | {"brclr", 1, 0x02, test_br_reg_imm_rel, 0}, | |
2983 | {"brset", 1, 0x03, test_br_reg_imm_rel, 0}, | |
2984 | ||
2985 | {"brclr.b", 1, 0x02, test_br_opr_reg_rel, 0}, | |
2986 | {"brclr.w", 1, 0x02, test_br_opr_reg_rel, 0}, | |
2987 | {"brclr.l", 1, 0x02, test_br_opr_reg_rel, 0}, | |
2988 | ||
2989 | {"brset.b", 1, 0x03, test_br_opr_reg_rel, 0}, | |
2990 | {"brset.w", 1, 0x03, test_br_opr_reg_rel, 0}, | |
2991 | {"brset.l", 1, 0x03, test_br_opr_reg_rel, 0}, | |
2992 | ||
2993 | {"brclr.b", 1, 0x02, test_br_opr_imm_rel, 0}, | |
2994 | {"brclr.w", 1, 0x02, test_br_opr_imm_rel, 0}, | |
2995 | {"brclr.l", 1, 0x02, test_br_opr_imm_rel, 0}, | |
2996 | ||
2997 | {"brset.b", 1, 0x03, test_br_opr_imm_rel, 0}, | |
2998 | {"brset.w", 1, 0x03, test_br_opr_imm_rel, 0}, | |
2999 | {"brset.l", 1, 0x03, test_br_opr_imm_rel, 0}, | |
3000 | ||
3001 | {"psh", 1, 0x04, psh_pull, 0}, | |
3002 | {"pul", 1, 0x04, psh_pull, 0}, | |
3003 | ||
3004 | {"rts", 1, 0x05, no_operands, 0}, | |
3005 | {"lea", 1, 0x06, reg67sxy_opr, 0}, | |
3006 | ||
3007 | {"dbne", 1, 0x0b, tb_reg_rel, 0}, | |
3008 | {"dbeq", 1, 0x0b, tb_reg_rel, 0}, | |
3009 | {"dbpl", 1, 0x0b, tb_reg_rel, 0}, | |
3010 | {"dbmi", 1, 0x0b, tb_reg_rel, 0}, | |
3011 | {"dbgt", 1, 0x0b, tb_reg_rel, 0}, | |
3012 | {"dble", 1, 0x0b, tb_reg_rel, 0}, | |
3013 | ||
3014 | {"dbne.b", 1, 0x0b, tb_opr_rel, 0}, | |
3015 | {"dbeq.b", 1, 0x0b, tb_opr_rel, 0}, | |
3016 | {"dbpl.b", 1, 0x0b, tb_opr_rel, 0}, | |
3017 | {"dbmi.b", 1, 0x0b, tb_opr_rel, 0}, | |
3018 | {"dbgt.b", 1, 0x0b, tb_opr_rel, 0}, | |
3019 | {"dble.b", 1, 0x0b, tb_opr_rel, 0}, | |
3020 | ||
3021 | {"dbne.w", 1, 0x0b, tb_opr_rel, 0}, | |
3022 | {"dbeq.w", 1, 0x0b, tb_opr_rel, 0}, | |
3023 | {"dbpl.w", 1, 0x0b, tb_opr_rel, 0}, | |
3024 | {"dbmi.w", 1, 0x0b, tb_opr_rel, 0}, | |
3025 | {"dbgt.w", 1, 0x0b, tb_opr_rel, 0}, | |
3026 | {"dble.w", 1, 0x0b, tb_opr_rel, 0}, | |
3027 | ||
3028 | {"dbne.p", 1, 0x0b, tb_opr_rel, 0}, | |
3029 | {"dbeq.p", 1, 0x0b, tb_opr_rel, 0}, | |
3030 | {"dbpl.p", 1, 0x0b, tb_opr_rel, 0}, | |
3031 | {"dbmi.p", 1, 0x0b, tb_opr_rel, 0}, | |
3032 | {"dbgt.p", 1, 0x0b, tb_opr_rel, 0}, | |
3033 | {"dble.p", 1, 0x0b, tb_opr_rel, 0}, | |
3034 | ||
3035 | {"dbne.l", 1, 0x0b, tb_opr_rel, 0}, | |
3036 | {"dbeq.l", 1, 0x0b, tb_opr_rel, 0}, | |
3037 | {"dbpl.l", 1, 0x0b, tb_opr_rel, 0}, | |
3038 | {"dbmi.l", 1, 0x0b, tb_opr_rel, 0}, | |
3039 | {"dbgt.l", 1, 0x0b, tb_opr_rel, 0}, | |
3040 | {"dble.l", 1, 0x0b, tb_opr_rel, 0}, | |
3041 | ||
3042 | {"tbne", 1, 0x0b, tb_reg_rel, 0}, | |
3043 | {"tbeq", 1, 0x0b, tb_reg_rel, 0}, | |
3044 | {"tbpl", 1, 0x0b, tb_reg_rel, 0}, | |
3045 | {"tbmi", 1, 0x0b, tb_reg_rel, 0}, | |
3046 | {"tbgt", 1, 0x0b, tb_reg_rel, 0}, | |
3047 | {"tble", 1, 0x0b, tb_reg_rel, 0}, | |
3048 | ||
3049 | {"tbne.b", 1, 0x0b, tb_opr_rel, 0}, | |
3050 | {"tbeq.b", 1, 0x0b, tb_opr_rel, 0}, | |
3051 | {"tbpl.b", 1, 0x0b, tb_opr_rel, 0}, | |
3052 | {"tbmi.b", 1, 0x0b, tb_opr_rel, 0}, | |
3053 | {"tbgt.b", 1, 0x0b, tb_opr_rel, 0}, | |
3054 | {"tble.b", 1, 0x0b, tb_opr_rel, 0}, | |
3055 | ||
3056 | {"tbne.w", 1, 0x0b, tb_opr_rel, 0}, | |
3057 | {"tbeq.w", 1, 0x0b, tb_opr_rel, 0}, | |
3058 | {"tbpl.w", 1, 0x0b, tb_opr_rel, 0}, | |
3059 | {"tbmi.w", 1, 0x0b, tb_opr_rel, 0}, | |
3060 | {"tbgt.w", 1, 0x0b, tb_opr_rel, 0}, | |
3061 | {"tble.w", 1, 0x0b, tb_opr_rel, 0}, | |
3062 | ||
3063 | {"tbne.p", 1, 0x0b, tb_opr_rel, 0}, | |
3064 | {"tbeq.p", 1, 0x0b, tb_opr_rel, 0}, | |
3065 | {"tbpl.p", 1, 0x0b, tb_opr_rel, 0}, | |
3066 | {"tbmi.p", 1, 0x0b, tb_opr_rel, 0}, | |
3067 | {"tbgt.p", 1, 0x0b, tb_opr_rel, 0}, | |
3068 | {"tble.p", 1, 0x0b, tb_opr_rel, 0}, | |
3069 | ||
3070 | {"tbne.l", 1, 0x0b, tb_opr_rel, 0}, | |
3071 | {"tbeq.l", 1, 0x0b, tb_opr_rel, 0}, | |
3072 | {"tbpl.l", 1, 0x0b, tb_opr_rel, 0}, | |
3073 | {"tbmi.l", 1, 0x0b, tb_opr_rel, 0}, | |
3074 | {"tbgt.l", 1, 0x0b, tb_opr_rel, 0}, | |
3075 | {"tble.l", 1, 0x0b, tb_opr_rel, 0}, | |
3076 | ||
3077 | {"mov.b", 1, 0x0c, imm_opr, 0}, | |
3078 | {"mov.w", 1, 0x0d, imm_opr, 0}, | |
3079 | {"mov.p", 1, 0x0e, imm_opr, 0}, | |
3080 | {"mov.l", 1, 0x0f, imm_opr, 0}, | |
3081 | ||
3082 | {"rol", 1, 0x10, rol, 0}, | |
3083 | {"rol.b", 1, 0x10, rol, 0}, | |
3084 | {"rol.w", 1, 0x10, rol, 0}, | |
3085 | {"rol.p", 1, 0x10, rol, 0}, | |
3086 | {"rol.l", 1, 0x10, rol, 0}, | |
3087 | ||
3088 | {"ror", 1, 0x10, ror, 0}, | |
3089 | {"ror.b", 1, 0x10, ror, 0}, | |
3090 | {"ror.w", 1, 0x10, ror, 0}, | |
3091 | {"ror.p", 1, 0x10, ror, 0}, | |
3092 | {"ror.l", 1, 0x10, ror, 0}, | |
3093 | ||
3094 | {"lsl", 1, 0x10, shift_reg, 0}, | |
3095 | {"lsr", 1, 0x10, shift_reg, 0}, | |
3096 | {"asl", 1, 0x10, shift_reg, 0}, | |
3097 | {"asr", 1, 0x10, shift_reg, 0}, | |
3098 | ||
3099 | {"lsl.b", 1, 0x10, shift_two_operand, 0}, | |
3100 | {"lsl.w", 1, 0x10, shift_two_operand, 0}, | |
3101 | {"lsl.p", 1, 0x10, shift_two_operand, 0}, | |
3102 | {"lsl.l", 1, 0x10, shift_two_operand, 0}, | |
3103 | {"asl.b", 1, 0x10, shift_two_operand, 0}, | |
3104 | {"asl.w", 1, 0x10, shift_two_operand, 0}, | |
3105 | {"asl.p", 1, 0x10, shift_two_operand, 0}, | |
3106 | {"asl.l", 1, 0x10, shift_two_operand, 0}, | |
3107 | ||
3108 | {"lsr.b", 1, 0x10, shift_two_operand, 0}, | |
3109 | {"lsr.w", 1, 0x10, shift_two_operand, 0}, | |
3110 | {"lsr.p", 1, 0x10, shift_two_operand, 0}, | |
3111 | {"lsr.l", 1, 0x10, shift_two_operand, 0}, | |
3112 | {"asr.b", 1, 0x10, shift_two_operand, 0}, | |
3113 | {"asr.w", 1, 0x10, shift_two_operand, 0}, | |
3114 | {"asr.p", 1, 0x10, shift_two_operand, 0}, | |
3115 | {"asr.l", 1, 0x10, shift_two_operand, 0}, | |
3116 | ||
3117 | {"lsl.b", 1, 0x10, shift_opr_imm, 0}, | |
3118 | {"lsl.w", 1, 0x10, shift_opr_imm, 0}, | |
3119 | {"lsl.p", 1, 0x10, shift_opr_imm, 0}, | |
3120 | {"lsl.l", 1, 0x10, shift_opr_imm, 0}, | |
3121 | {"asl.b", 1, 0x10, shift_opr_imm, 0}, | |
3122 | {"asl.w", 1, 0x10, shift_opr_imm, 0}, | |
3123 | {"asl.p", 1, 0x10, shift_opr_imm, 0}, | |
3124 | {"asl.l", 1, 0x10, shift_opr_imm, 0}, | |
3125 | ||
3126 | {"lsr.b", 1, 0x10, shift_opr_imm, 0}, | |
3127 | {"lsr.w", 1, 0x10, shift_opr_imm, 0}, | |
3128 | {"lsr.p", 1, 0x10, shift_opr_imm, 0}, | |
3129 | {"lsr.l", 1, 0x10, shift_opr_imm, 0}, | |
3130 | {"asr.b", 1, 0x10, shift_opr_imm, 0}, | |
3131 | {"asr.w", 1, 0x10, shift_opr_imm, 0}, | |
3132 | {"asr.p", 1, 0x10, shift_opr_imm, 0}, | |
3133 | {"asr.l", 1, 0x10, shift_opr_imm, 0}, | |
3134 | ||
3135 | {"mov.b", 1, 0x1c, opr_opr, 0}, | |
3136 | {"mov.w", 1, 0x1d, opr_opr, 0}, | |
3137 | {"mov.p", 1, 0x1e, opr_opr, 0}, | |
3138 | {"mov.l", 1, 0x1f, opr_opr, 0}, | |
3139 | ||
3140 | {"bra", 1, 0x20, rel, 0}, | |
3141 | {"bsr", 1, 0x21, rel, 0}, | |
3142 | {"bhi", 1, 0x22, rel, 0}, | |
3143 | {"bls", 1, 0x23, rel, 0}, | |
3144 | {"bcc", 1, 0x24, rel, 0}, | |
51534d7a | 3145 | {"bhs", 1, 0x24, rel, 0}, /* Alias for bcc */ |
7b4ae824 | 3146 | {"bcs", 1, 0x25, rel, 0}, |
51534d7a | 3147 | {"blo", 1, 0x25, rel, 0}, /* Alias for bcs */ |
7b4ae824 JD |
3148 | {"bne", 1, 0x26, rel, 0}, |
3149 | {"beq", 1, 0x27, rel, 0}, | |
3150 | {"bvc", 1, 0x28, rel, 0}, | |
3151 | {"bvs", 1, 0x29, rel, 0}, | |
3152 | {"bpl", 1, 0x2a, rel, 0}, | |
3153 | {"bmi", 1, 0x2b, rel, 0}, | |
3154 | {"bge", 1, 0x2c, rel, 0}, | |
3155 | {"blt", 1, 0x2d, rel, 0}, | |
3156 | {"bgt", 1, 0x2e, rel, 0}, | |
3157 | {"ble", 1, 0x2f, rel, 0}, | |
3158 | ||
3159 | {"inc", 1, 0x30, reg_inh, 0}, | |
3160 | {"clr", 1, 0x38, reg_inh, 0}, | |
3161 | {"dec", 1, 0x40, reg_inh, 0}, | |
3162 | ||
3163 | {"muls", 1, 0x48, mul_reg_reg_reg, 0}, | |
3164 | {"mulu", 1, 0x48, mul_reg_reg_reg, 0}, | |
3165 | ||
3166 | {"muls.b", 1, 0x48, mul_reg_reg_opr, 0}, | |
3167 | {"muls.w", 1, 0x48, mul_reg_reg_opr, 0}, | |
3168 | {"muls.l", 1, 0x48, mul_reg_reg_opr, 0}, | |
3169 | ||
3170 | {"mulu.b", 1, 0x48, mul_reg_reg_opr, 0}, | |
3171 | {"mulu.w", 1, 0x48, mul_reg_reg_opr, 0}, | |
3172 | {"mulu.l", 1, 0x48, mul_reg_reg_opr, 0}, | |
3173 | ||
3174 | {"muls.b", 1, 0x48, mul_reg_reg_imm, 0}, | |
3175 | {"muls.w", 1, 0x48, mul_reg_reg_imm, 0}, | |
3176 | {"muls.l", 1, 0x48, mul_reg_reg_imm, 0}, | |
3177 | ||
3178 | {"mulu.b", 1, 0x48, mul_reg_reg_imm, 0}, | |
3179 | {"mulu.w", 1, 0x48, mul_reg_reg_imm, 0}, | |
3180 | {"mulu.l", 1, 0x48, mul_reg_reg_imm, 0}, | |
3181 | ||
3182 | {"muls.bb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3183 | {"muls.bw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3184 | {"muls.bp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3185 | {"muls.bl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3186 | ||
3187 | {"muls.wb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3188 | {"muls.ww", 1, 0x48, mul_reg_opr_opr, 0}, | |
3189 | {"muls.wp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3190 | {"muls.wl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3191 | ||
3192 | {"muls.pb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3193 | {"muls.pw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3194 | {"muls.pp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3195 | {"muls.pl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3196 | ||
3197 | {"muls.lb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3198 | {"muls.lw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3199 | {"muls.lp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3200 | {"muls.ll", 1, 0x48, mul_reg_opr_opr, 0}, | |
3201 | ||
3202 | {"mulu.bb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3203 | {"mulu.bw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3204 | {"mulu.bp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3205 | {"mulu.bl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3206 | ||
3207 | {"mulu.wb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3208 | {"mulu.ww", 1, 0x48, mul_reg_opr_opr, 0}, | |
3209 | {"mulu.wp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3210 | {"mulu.wl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3211 | ||
3212 | {"mulu.pb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3213 | {"mulu.pw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3214 | {"mulu.pp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3215 | {"mulu.pl", 1, 0x48, mul_reg_opr_opr, 0}, | |
3216 | ||
3217 | {"mulu.lb", 1, 0x48, mul_reg_opr_opr, 0}, | |
3218 | {"mulu.lw", 1, 0x48, mul_reg_opr_opr, 0}, | |
3219 | {"mulu.lp", 1, 0x48, mul_reg_opr_opr, 0}, | |
3220 | {"mulu.ll", 1, 0x48, mul_reg_opr_opr, 0}, | |
3221 | ||
3222 | {"add", 1, 0x50, regd_imm, 0}, | |
3223 | {"and", 1, 0x58, regd_imm, 0}, | |
3224 | ||
3225 | {"add", 1, 0x60, regd_opr, 0}, | |
3226 | {"and", 1, 0x68, regd_opr, 0}, | |
3227 | ||
3228 | {"sub", 1, 0x70, regd_imm, 0}, | |
3229 | {"or", 1, 0x78, regd_imm, 0}, | |
3230 | ||
3231 | {"sub", 1, 0x80, regd_opr, 0}, | |
3232 | {"or", 1, 0x88, regd_opr, 0}, | |
3233 | ||
3234 | {"ld", 1, 0x90, regdxy_imm, 0}, | |
3235 | ||
3236 | {"clr", 1, 0x9a, clr_xy, 0}, | |
3237 | {"tfr", 1, 0x9e, tfr, 0}, | |
3238 | {"zex", 1, 0x9e, tfr, 0}, | |
3239 | ||
3240 | {"ld", 1, 0xa0, regdxy_opr, 0xb0}, | |
3241 | ||
3242 | {"jmp", 1, 0xaa, opr, 0xba}, | |
3243 | {"jsr", 1, 0xab, opr, 0xbb}, | |
3244 | ||
3245 | {"exg", 1, 0xae, tfr, 0}, | |
3246 | {"sex", 1, 0xae, tfr, 0}, | |
3247 | ||
3248 | {"st", 1, 0xc0, regdxy_opr, 0xd0}, | |
3249 | ||
3250 | {"andcc", 1, 0xce, imm8, 0}, | |
3251 | {"orcc", 1, 0xde, imm8, 0}, | |
3252 | ||
3253 | {"inc.b", 1, 0x9c, opr, 0}, | |
3254 | {"inc.w", 1, 0x9d, opr, 0}, | |
3255 | {"inc.l", 1, 0x9f, opr, 0}, | |
3256 | ||
3257 | {"dec.b", 1, 0xac, opr, 0}, | |
3258 | {"dec.w", 1, 0xad, opr, 0}, | |
3259 | {"dec.l", 1, 0xaf, opr, 0}, | |
3260 | ||
3261 | {"clr.b", 1, 0xbc, opr, 0}, | |
3262 | {"clr.w", 1, 0xbd, opr, 0}, | |
3263 | {"clr.p", 1, 0xbe, opr, 0}, | |
3264 | {"clr.l", 1, 0xbf, opr, 0}, | |
3265 | ||
3266 | {"com.b", 1, 0xcc, opr, 0}, | |
3267 | {"com.w", 1, 0xcd, opr, 0}, | |
3268 | {"com.l", 1, 0xcf, opr, 0}, | |
3269 | ||
3270 | {"neg.b", 1, 0xdc, opr, 0}, | |
3271 | {"neg.w", 1, 0xdd, opr, 0}, | |
3272 | {"neg.l", 1, 0xdf, opr, 0}, | |
3273 | ||
3274 | {"bclr", 1, 0xec, bm_regd_imm, 0}, | |
3275 | {"bset", 1, 0xed, bm_regd_imm, 0}, | |
3276 | {"btgl", 1, 0xee, bm_regd_imm, 0}, | |
3277 | ||
3278 | {"bclr", 1, 0xec, bm_regd_reg, 0}, | |
3279 | {"bset", 1, 0xed, bm_regd_reg, 0}, | |
3280 | {"btgl", 1, 0xee, bm_regd_reg, 0}, | |
3281 | ||
3282 | {"bclr.b", 1, 0xec, bm_opr_imm, 0}, | |
3283 | {"bclr.w", 1, 0xec, bm_opr_imm, 0}, | |
3284 | {"bclr.l", 1, 0xec, bm_opr_imm, 0}, | |
3285 | ||
3286 | {"bset.b", 1, 0xed, bm_opr_imm, 0}, | |
3287 | {"bset.w", 1, 0xed, bm_opr_imm, 0}, | |
3288 | {"bset.l", 1, 0xed, bm_opr_imm, 0}, | |
3289 | ||
3290 | {"btgl.b", 1, 0xee, bm_opr_imm, 0}, | |
3291 | {"btgl.w", 1, 0xee, bm_opr_imm, 0}, | |
3292 | {"btgl.l", 1, 0xee, bm_opr_imm, 0}, | |
3293 | ||
3294 | {"bclr.b", 1, 0xec, bm_opr_reg, 0}, | |
3295 | {"bclr.w", 1, 0xec, bm_opr_reg, 0}, | |
3296 | {"bclr.l", 1, 0xec, bm_opr_reg, 0}, | |
3297 | ||
3298 | {"bset.b", 1, 0xed, bm_opr_reg, 0}, | |
3299 | {"bset.w", 1, 0xed, bm_opr_reg, 0}, | |
3300 | {"bset.l", 1, 0xed, bm_opr_reg, 0}, | |
3301 | ||
3302 | {"btgl.b", 1, 0xee, bm_opr_reg, 0}, | |
3303 | {"btgl.w", 1, 0xee, bm_opr_reg, 0}, | |
3304 | {"btgl.l", 1, 0xee, bm_opr_reg, 0}, | |
3305 | ||
3306 | {"cmp", 1, 0xe0, regdxy_imm, 0}, | |
3307 | {"cmp", 1, 0xf0, regdxy_opr, 0}, | |
3308 | ||
3309 | {"cmp", 1, 0xfc, regx_regy, 0}, | |
3310 | {"sub", 1, 0xfd, regd6_regx_regy, 0}, | |
3311 | {"sub", 1, 0xfe, regd6_regy_regx, 0}, | |
3312 | ||
3313 | {"swi", 1, 0xff, no_operands, 0}, | |
3314 | ||
3315 | /* Page 2 */ | |
3316 | ||
3317 | /* The -10 below is a kludge. The opcode is in fact 0x00 */ | |
3318 | {"ld", 2, -10, regs_opr, 0}, | |
3319 | ||
3320 | /* The -9 below is a kludge. The opcode is in fact 0x01 */ | |
3321 | {"st", 2, -9, regs_opr, 0}, | |
3322 | ||
3323 | /* The -8 below is a kludge. The opcode is in fact 0x02 */ | |
3324 | {"cmp", 2, -8, regs_opr, 0}, | |
3325 | ||
3326 | /* The -7 below is a kludge. The opcode is in fact 0x03 */ | |
3327 | {"ld", 2, -7, regs_imm, 0}, | |
3328 | ||
3329 | /* The -6 below is a kludge. The opcode is in fact 0x04 */ | |
3330 | {"cmp", 2, -6, regs_imm, 0}, | |
3331 | ||
3332 | {"bfext", 2, 0x08, bfe_reg_reg_reg, 0}, | |
3333 | {"bfext", 2, 0x08, bfe_reg_reg_imm, 0}, | |
3334 | {"bfext.b", 2, 0x08, bfe_reg_opr_reg, 0}, | |
3335 | {"bfext.w", 2, 0x08, bfe_reg_opr_reg, 0}, | |
3336 | {"bfext.p", 2, 0x08, bfe_reg_opr_reg, 0}, | |
3337 | {"bfext.l", 2, 0x08, bfe_reg_opr_reg, 0}, | |
3338 | {"bfext.b", 2, 0x08, bfe_opr_reg_reg, 0}, | |
3339 | {"bfext.w", 2, 0x08, bfe_opr_reg_reg, 0}, | |
3340 | {"bfext.p", 2, 0x08, bfe_opr_reg_reg, 0}, | |
3341 | {"bfext.l", 2, 0x08, bfe_opr_reg_reg, 0}, | |
3342 | {"bfext.b", 2, 0x08, bfe_reg_opr_imm, 0}, | |
3343 | {"bfext.w", 2, 0x08, bfe_reg_opr_imm, 0}, | |
3344 | {"bfext.p", 2, 0x08, bfe_reg_opr_imm, 0}, | |
3345 | {"bfext.l", 2, 0x08, bfe_reg_opr_imm, 0}, | |
3346 | {"bfext.b", 2, 0x08, bfe_opr_reg_imm, 0}, | |
3347 | {"bfext.w", 2, 0x08, bfe_opr_reg_imm, 0}, | |
3348 | {"bfext.p", 2, 0x08, bfe_opr_reg_imm, 0}, | |
3349 | {"bfext.l", 2, 0x08, bfe_opr_reg_imm, 0}, | |
3350 | ||
3351 | ||
3352 | {"bfins", 2, 0x08, bfi_reg_reg_reg, 0}, | |
3353 | {"bfins", 2, 0x08, bfi_reg_reg_imm, 0}, | |
3354 | {"bfins.b", 2, 0x08, bfi_reg_opr_reg, 0}, | |
3355 | {"bfins.w", 2, 0x08, bfi_reg_opr_reg, 0}, | |
3356 | {"bfins.p", 2, 0x08, bfi_reg_opr_reg, 0}, | |
3357 | {"bfins.l", 2, 0x08, bfi_reg_opr_reg, 0}, | |
3358 | {"bfins.b", 2, 0x08, bfi_opr_reg_reg, 0}, | |
3359 | {"bfins.w", 2, 0x08, bfi_opr_reg_reg, 0}, | |
3360 | {"bfins.p", 2, 0x08, bfi_opr_reg_reg, 0}, | |
3361 | {"bfins.l", 2, 0x08, bfi_opr_reg_reg, 0}, | |
3362 | {"bfins.b", 2, 0x08, bfi_reg_opr_imm, 0}, | |
3363 | {"bfins.w", 2, 0x08, bfi_reg_opr_imm, 0}, | |
3364 | {"bfins.p", 2, 0x08, bfi_reg_opr_imm, 0}, | |
3365 | {"bfins.l", 2, 0x08, bfi_reg_opr_imm, 0}, | |
3366 | {"bfins.b", 2, 0x08, bfi_opr_reg_imm, 0}, | |
3367 | {"bfins.w", 2, 0x08, bfi_opr_reg_imm, 0}, | |
3368 | {"bfins.p", 2, 0x08, bfi_opr_reg_imm, 0}, | |
3369 | {"bfins.l", 2, 0x08, bfi_opr_reg_imm, 0}, | |
3370 | ||
3371 | ||
3372 | {"minu", 2, 0x10, regd_opr, 0}, | |
3373 | {"maxu", 2, 0x18, regd_opr, 0}, | |
3374 | {"mins", 2, 0x20, regd_opr, 0}, | |
3375 | {"maxs", 2, 0x28, regd_opr, 0}, | |
3376 | ||
3377 | {"clb", 2, 0x91, tfr, 0}, | |
3378 | ||
3379 | {"trap", 2, 0x00, trap_imm, 0}, | |
3380 | {"abs", 2, 0x40, reg_inh, 0}, | |
3381 | {"sat", 2, 0xa0, reg_inh, 0}, | |
3382 | ||
3383 | {"rti", 2, 0x90, no_operands, 0}, | |
3384 | {"stop", 2, 0x05, no_operands, 0}, | |
3385 | {"wai", 2, 0x06, no_operands, 0}, | |
3386 | {"sys", 2, 0x07, no_operands, 0}, | |
3387 | ||
3388 | {"bit", 2, 0x58, regd_imm, 0}, | |
3389 | {"bit", 2, 0x68, regd_opr, 0}, | |
3390 | ||
3391 | {"adc", 2, 0x50, regd_imm, 0}, | |
3392 | {"adc", 2, 0x60, regd_opr, 0}, | |
3393 | ||
3394 | {"sbc", 2, 0x70, regd_imm, 0}, | |
3395 | {"eor", 2, 0x78, regd_imm, 0}, | |
3396 | ||
3397 | {"sbc", 2, 0x80, regd_opr, 0}, | |
3398 | {"eor", 2, 0x88, regd_opr, 0}, | |
3399 | ||
3400 | {"divs", 2, 0x30, mul_reg_reg_reg, 0}, | |
3401 | {"divu", 2, 0x30, mul_reg_reg_reg, 0}, | |
3402 | ||
3403 | {"divs.b", 2, 0x30, mul_reg_reg_opr, 0}, | |
3404 | {"divs.w", 2, 0x30, mul_reg_reg_opr, 0}, | |
3405 | {"divs.l", 2, 0x30, mul_reg_reg_opr, 0}, | |
3406 | ||
3407 | {"divu.b", 2, 0x30, mul_reg_reg_opr, 0}, | |
3408 | {"divu.w", 2, 0x30, mul_reg_reg_opr, 0}, | |
3409 | {"divu.l", 2, 0x30, mul_reg_reg_opr, 0}, | |
3410 | ||
3411 | {"divs.b", 2, 0x30, mul_reg_reg_imm, 0}, | |
3412 | {"divs.w", 2, 0x30, mul_reg_reg_imm, 0}, | |
3413 | {"divs.l", 2, 0x30, mul_reg_reg_imm, 0}, | |
3414 | ||
3415 | {"divu.b", 2, 0x30, mul_reg_reg_imm, 0}, | |
3416 | {"divu.w", 2, 0x30, mul_reg_reg_imm, 0}, | |
3417 | {"divu.l", 2, 0x30, mul_reg_reg_imm, 0}, | |
3418 | ||
3419 | {"divs.bb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3420 | {"divs.bw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3421 | {"divs.bp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3422 | {"divs.bl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3423 | ||
3424 | {"divs.wb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3425 | {"divs.ww", 2, 0x30, mul_reg_opr_opr, 0}, | |
3426 | {"divs.wp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3427 | {"divs.wl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3428 | ||
3429 | {"divs.pb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3430 | {"divs.pw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3431 | {"divs.pp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3432 | {"divs.pl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3433 | ||
3434 | {"divs.lb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3435 | {"divs.lw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3436 | {"divs.lp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3437 | {"divs.ll", 2, 0x30, mul_reg_opr_opr, 0}, | |
3438 | ||
3439 | {"divu.bb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3440 | {"divu.bw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3441 | {"divu.bp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3442 | {"divu.bl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3443 | ||
3444 | {"divu.wb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3445 | {"divu.ww", 2, 0x30, mul_reg_opr_opr, 0}, | |
3446 | {"divu.wp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3447 | {"divu.wl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3448 | ||
3449 | {"divu.pb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3450 | {"divu.pw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3451 | {"divu.pp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3452 | {"divu.pl", 2, 0x30, mul_reg_opr_opr, 0}, | |
3453 | ||
3454 | {"divu.lb", 2, 0x30, mul_reg_opr_opr, 0}, | |
3455 | {"divu.lw", 2, 0x30, mul_reg_opr_opr, 0}, | |
3456 | {"divu.lp", 2, 0x30, mul_reg_opr_opr, 0}, | |
3457 | {"divu.ll", 2, 0x30, mul_reg_opr_opr, 0}, | |
3458 | ||
3459 | // | |
3460 | ||
3461 | {"qmuls", 2, 0xb0, mul_reg_reg_reg, 0}, | |
3462 | {"qmulu", 2, 0xb0, mul_reg_reg_reg, 0}, | |
3463 | ||
3464 | {"qmuls.b", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3465 | {"qmuls.w", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3466 | {"qmuls.l", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3467 | ||
3468 | {"qmulu.b", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3469 | {"qmulu.w", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3470 | {"qmulu.l", 2, 0xb0, mul_reg_reg_opr, 0}, | |
3471 | ||
3472 | {"qmuls.b", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3473 | {"qmuls.w", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3474 | {"qmuls.l", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3475 | ||
3476 | {"qmulu.b", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3477 | {"qmulu.w", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3478 | {"qmulu.l", 2, 0xb0, mul_reg_reg_imm, 0}, | |
3479 | ||
3480 | {"qmuls.bb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3481 | {"qmuls.bw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3482 | {"qmuls.bp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3483 | {"qmuls.bl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3484 | ||
3485 | {"qmuls.wb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3486 | {"qmuls.ww", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3487 | {"qmuls.wp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3488 | {"qmuls.wl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3489 | ||
3490 | {"qmuls.pb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3491 | {"qmuls.pw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3492 | {"qmuls.pp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3493 | {"qmuls.pl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3494 | ||
3495 | {"qmuls.lb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3496 | {"qmuls.lw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3497 | {"qmuls.lp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3498 | {"qmuls.ll", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3499 | ||
3500 | {"qmulu.bb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3501 | {"qmulu.bw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3502 | {"qmulu.bp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3503 | {"qmulu.bl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3504 | ||
3505 | {"qmulu.wb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3506 | {"qmulu.ww", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3507 | {"qmulu.wp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3508 | {"qmulu.wl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3509 | ||
3510 | {"qmulu.pb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3511 | {"qmulu.pw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3512 | {"qmulu.pp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3513 | {"qmulu.pl", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3514 | ||
3515 | {"qmulu.lb", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3516 | {"qmulu.lw", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3517 | {"qmulu.lp", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3518 | {"qmulu.ll", 2, 0xb0, mul_reg_opr_opr, 0}, | |
3519 | ||
3520 | ||
3521 | // | |
3522 | ||
3523 | {"macs", 2, 0x48, mul_reg_reg_reg, 0}, | |
3524 | {"macu", 2, 0x48, mul_reg_reg_reg, 0}, | |
3525 | ||
3526 | {"macs.b", 2, 0x48, mul_reg_reg_opr, 0}, | |
3527 | {"macs.w", 2, 0x48, mul_reg_reg_opr, 0}, | |
3528 | {"macs.l", 2, 0x48, mul_reg_reg_opr, 0}, | |
3529 | ||
3530 | {"macu.b", 2, 0x48, mul_reg_reg_opr, 0}, | |
3531 | {"macu.w", 2, 0x48, mul_reg_reg_opr, 0}, | |
3532 | {"macu.l", 2, 0x48, mul_reg_reg_opr, 0}, | |
3533 | ||
3534 | {"macs.b", 2, 0x48, mul_reg_reg_imm, 0}, | |
3535 | {"macs.w", 2, 0x48, mul_reg_reg_imm, 0}, | |
3536 | {"macs.l", 2, 0x48, mul_reg_reg_imm, 0}, | |
3537 | ||
3538 | {"macu.b", 2, 0x48, mul_reg_reg_imm, 0}, | |
3539 | {"macu.w", 2, 0x48, mul_reg_reg_imm, 0}, | |
3540 | {"macu.l", 2, 0x48, mul_reg_reg_imm, 0}, | |
3541 | ||
3542 | {"macs.bb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3543 | {"macs.bw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3544 | {"macs.bp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3545 | {"macs.bl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3546 | ||
3547 | {"macs.wb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3548 | {"macs.ww", 2, 0x48, mul_reg_opr_opr, 0}, | |
3549 | {"macs.wp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3550 | {"macs.wl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3551 | ||
3552 | {"macs.pb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3553 | {"macs.pw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3554 | {"macs.pp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3555 | {"macs.pl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3556 | ||
3557 | {"macs.lb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3558 | {"macs.lw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3559 | {"macs.lp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3560 | {"macs.ll", 2, 0x48, mul_reg_opr_opr, 0}, | |
3561 | ||
3562 | {"macu.bb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3563 | {"macu.bw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3564 | {"macu.bp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3565 | {"macu.bl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3566 | ||
3567 | {"macu.wb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3568 | {"macu.ww", 2, 0x48, mul_reg_opr_opr, 0}, | |
3569 | {"macu.wp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3570 | {"macu.wl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3571 | ||
3572 | {"macu.pb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3573 | {"macu.pw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3574 | {"macu.pp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3575 | {"macu.pl", 2, 0x48, mul_reg_opr_opr, 0}, | |
3576 | ||
3577 | {"macu.lb", 2, 0x48, mul_reg_opr_opr, 0}, | |
3578 | {"macu.lw", 2, 0x48, mul_reg_opr_opr, 0}, | |
3579 | {"macu.lp", 2, 0x48, mul_reg_opr_opr, 0}, | |
3580 | {"macu.ll", 2, 0x48, mul_reg_opr_opr, 0}, | |
3581 | ||
3582 | ||
3583 | // | |
3584 | ||
3585 | {"mods", 2, 0x38, mul_reg_reg_reg, 0}, | |
3586 | {"modu", 2, 0x38, mul_reg_reg_reg, 0}, | |
3587 | ||
3588 | {"mods.b", 2, 0x38, mul_reg_reg_opr, 0}, | |
3589 | {"mods.w", 2, 0x38, mul_reg_reg_opr, 0}, | |
3590 | {"mods.l", 2, 0x38, mul_reg_reg_opr, 0}, | |
3591 | ||
3592 | {"modu.b", 2, 0x38, mul_reg_reg_opr, 0}, | |
3593 | {"modu.w", 2, 0x38, mul_reg_reg_opr, 0}, | |
3594 | {"modu.l", 2, 0x38, mul_reg_reg_opr, 0}, | |
3595 | ||
3596 | {"mods.b", 2, 0x38, mul_reg_reg_imm, 0}, | |
3597 | {"mods.w", 2, 0x38, mul_reg_reg_imm, 0}, | |
3598 | {"mods.l", 2, 0x38, mul_reg_reg_imm, 0}, | |
3599 | ||
3600 | {"modu.b", 2, 0x38, mul_reg_reg_imm, 0}, | |
3601 | {"modu.w", 2, 0x38, mul_reg_reg_imm, 0}, | |
3602 | {"modu.l", 2, 0x38, mul_reg_reg_imm, 0}, | |
3603 | ||
3604 | {"mods.bb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3605 | {"mods.bw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3606 | {"mods.bp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3607 | {"mods.bl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3608 | ||
3609 | {"mods.wb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3610 | {"mods.ww", 2, 0x38, mul_reg_opr_opr, 0}, | |
3611 | {"mods.wp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3612 | {"mods.wl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3613 | ||
3614 | {"mods.pb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3615 | {"mods.pw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3616 | {"mods.pp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3617 | {"mods.pl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3618 | ||
3619 | {"mods.lb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3620 | {"mods.lw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3621 | {"mods.lp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3622 | {"mods.ll", 2, 0x38, mul_reg_opr_opr, 0}, | |
3623 | ||
3624 | {"modu.bb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3625 | {"modu.bw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3626 | {"modu.bp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3627 | {"modu.bl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3628 | ||
3629 | {"modu.wb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3630 | {"modu.ww", 2, 0x38, mul_reg_opr_opr, 0}, | |
3631 | {"modu.wp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3632 | {"modu.wl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3633 | ||
3634 | {"modu.pb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3635 | {"modu.pw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3636 | {"modu.pp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3637 | {"modu.pl", 2, 0x38, mul_reg_opr_opr, 0}, | |
3638 | ||
3639 | {"modu.lb", 2, 0x38, mul_reg_opr_opr, 0}, | |
3640 | {"modu.lw", 2, 0x38, mul_reg_opr_opr, 0}, | |
3641 | {"modu.lp", 2, 0x38, mul_reg_opr_opr, 0}, | |
3642 | {"modu.ll", 2, 0x38, mul_reg_opr_opr, 0} | |
3643 | }; | |
3644 | ||
3645 | \f | |
3646 | /* Gas line assembler entry point. */ | |
3647 | ||
3648 | /* This is the main entry point for the machine-dependent assembler. str | |
3649 | points to a machine-dependent instruction. This function is supposed to | |
3650 | emit the frags/bytes it assembles to. */ | |
3651 | void | |
3652 | md_assemble (char *str) | |
3653 | { | |
3654 | char *op_start; | |
3655 | char *op_end; | |
3656 | char name[20]; | |
3657 | size_t nlen = 0; | |
3658 | ||
3659 | fail_line_pointer = NULL; | |
3660 | ||
3661 | /* Find the opcode end and get the opcode in 'name'. The opcode is forced | |
3662 | lower case (the opcode table only has lower case op-codes). */ | |
3663 | for (op_start = op_end = str; | |
3664 | *op_end && !is_end_of_line[(int)*op_end] && *op_end != ' '; | |
3665 | op_end++) | |
3666 | { | |
3667 | name[nlen] = TOLOWER (op_start[nlen]); | |
3668 | nlen++; | |
3669 | gas_assert (nlen < sizeof (name) - 1); | |
3670 | } | |
3671 | name[nlen] = 0; | |
3672 | ||
3673 | if (nlen == 0) | |
3674 | { | |
3675 | as_bad (_("No instruction or missing opcode.")); | |
3676 | return; | |
3677 | } | |
3678 | ||
3679 | input_line_pointer = skip_whites (op_end); | |
3680 | ||
3681 | size_t i; | |
3682 | for (i = 0; i < sizeof (opcodes) / sizeof (opcodes[0]); ++i) | |
3683 | { | |
3684 | const struct instruction *opc = opcodes + i; | |
3685 | if (0 == strcmp (name, opc->name)) | |
3686 | { | |
3687 | if (opc->parse_operands (opc)) | |
3688 | return; | |
3689 | continue; | |
3690 | } | |
3691 | } | |
3692 | ||
3693 | as_bad (_("Invalid instruction: \"%s\""), str); | |
3694 | as_bad (_("First invalid token: \"%s\""), fail_line_pointer); | |
3695 | while (*input_line_pointer++) | |
3696 | ; | |
3697 | } | |
3698 | ||
3699 | \f | |
3700 | ||
3701 | ||
3702 | \f | |
3703 | /* Relocation, relaxation and frag conversions. */ | |
3704 | ||
3705 | /* PC-relative offsets are relative to the start of the | |
3706 | next instruction. That is, the address of the offset, plus its | |
3707 | size, since the offset is always the last part of the insn. */ | |
3708 | long | |
3709 | md_pcrel_from (fixS *fixP) | |
3710 | { | |
3711 | long ret = fixP->fx_size + fixP->fx_frag->fr_address; | |
3712 | if (fixP->fx_addsy && S_IS_DEFINED (fixP->fx_addsy)) | |
3713 | ret += fixP->fx_where; | |
3714 | ||
3715 | return ret; | |
3716 | } | |
3717 | ||
3718 | ||
3719 | /* We need a port-specific relaxation function to cope with sym2 - sym1 | |
3720 | relative expressions with both symbols in the same segment (but not | |
3721 | necessarily in the same frag as this insn), for example: | |
3722 | ldab sym2-(sym1-2),pc | |
3723 | sym1: | |
3724 | The offset can be 5, 9 or 16 bits long. */ | |
3725 | ||
3726 | long | |
3727 | s12z_relax_frag (segT seg ATTRIBUTE_UNUSED, fragS *fragP ATTRIBUTE_UNUSED, | |
3728 | long stretch ATTRIBUTE_UNUSED) | |
3729 | { | |
3730 | return 0; | |
3731 | } | |
3732 | ||
3733 | void | |
3734 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, asection *sec ATTRIBUTE_UNUSED, | |
3735 | fragS *fragP ATTRIBUTE_UNUSED) | |
3736 | { | |
3737 | } | |
3738 | ||
3739 | /* On an ELF system, we can't relax a weak symbol. The weak symbol | |
3740 | can be overridden at final link time by a non weak symbol. We can | |
3741 | relax externally visible symbol because there is no shared library | |
3742 | and such symbol can't be overridden (unless they are weak). */ | |
3743 | ||
3744 | /* Force truly undefined symbols to their maximum size, and generally set up | |
3745 | the frag list to be relaxed. */ | |
3746 | int | |
3747 | md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED, asection *segment ATTRIBUTE_UNUSED) | |
3748 | { | |
3749 | return 0; | |
3750 | } | |
3751 | ||
3752 | ||
3753 | /* If while processing a fixup, a reloc really needs to be created | |
3754 | then it is done here. */ | |
3755 | arelent * | |
3756 | tc_gen_reloc (asection *section, fixS *fixp) | |
3757 | { | |
3758 | arelent *reloc = XNEW (arelent); | |
3759 | reloc->sym_ptr_ptr = XNEW (asymbol *); | |
3760 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
3761 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
3762 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
3763 | if (reloc->howto == (reloc_howto_type *) NULL) | |
3764 | { | |
3765 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
3766 | _("Relocation %d is not supported by object file format."), | |
3767 | (int) fixp->fx_r_type); | |
3768 | return NULL; | |
3769 | } | |
3770 | ||
3771 | if (0 == (section->flags & SEC_CODE)) | |
3772 | reloc->addend = fixp->fx_offset; | |
3773 | else | |
3774 | reloc->addend = fixp->fx_addnumber; | |
3775 | ||
3776 | return reloc; | |
3777 | } | |
3778 | ||
3779 | /* See whether we need to force a relocation into the output file. */ | |
3780 | int | |
3781 | tc_s12z_force_relocation (fixS *fixP) | |
3782 | { | |
3783 | return generic_force_reloc (fixP); | |
3784 | } | |
3785 | ||
3786 | /* Here we decide which fixups can be adjusted to make them relative | |
3787 | to the beginning of the section instead of the symbol. Basically | |
3788 | we need to make sure that the linker relaxation is done | |
3789 | correctly, so in some cases we force the original symbol to be | |
3790 | used. */ | |
3791 | int | |
3792 | tc_s12z_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED) | |
3793 | { | |
3794 | return 1; | |
3795 | } | |
3796 | ||
3797 | void | |
3798 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) | |
3799 | { | |
3800 | long value = *valP; | |
3801 | ||
3802 | if (fixP->fx_addsy == (symbolS *) NULL) | |
3803 | fixP->fx_done = 1; | |
3804 | ||
3805 | /* We don't actually support subtracting a symbol. */ | |
3806 | if (fixP->fx_subsy != (symbolS *) NULL) | |
3807 | as_bad_where (fixP->fx_file, fixP->fx_line, _("Expression too complex.")); | |
3808 | ||
3809 | /* | |
3810 | Patch the instruction with the resolved operand. Elf relocation | |
3811 | info will also be generated to take care of linker/loader fixups. | |
3812 | */ | |
3813 | char *where = fixP->fx_frag->fr_literal + fixP->fx_where; | |
3814 | ||
3815 | switch (fixP->fx_r_type) | |
3816 | { | |
3817 | case BFD_RELOC_8: | |
3818 | ((bfd_byte *) where)[0] = (bfd_byte) value; | |
3819 | break; | |
405b6196 JD |
3820 | case BFD_RELOC_16: |
3821 | bfd_putb16 ((bfd_vma) value, (unsigned char *) where); | |
3822 | break; | |
7b4ae824 | 3823 | case BFD_RELOC_24: |
d5dcaf1b | 3824 | case BFD_RELOC_S12Z_OPR: |
7b4ae824 JD |
3825 | bfd_putb24 ((bfd_vma) value, (unsigned char *) where); |
3826 | break; | |
3827 | case BFD_RELOC_32: | |
3828 | bfd_putb32 ((bfd_vma) value, (unsigned char *) where); | |
3829 | break; | |
3830 | case BFD_RELOC_16_PCREL: | |
3831 | if (value < -0x8000 || value > 0x7FFF) | |
3832 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
3833 | _("Value out of 16-bit range.")); | |
3834 | ||
3835 | bfd_putb16 ((bfd_vma) value | 0x8000, (unsigned char *) where); | |
3836 | break; | |
3837 | ||
3838 | default: | |
3839 | as_fatal (_("Line %d: unknown relocation type: 0x%x."), | |
3840 | fixP->fx_line, fixP->fx_r_type); | |
3841 | } | |
3842 | } | |
3843 | ||
3844 | /* Set the ELF specific flags. */ | |
3845 | void | |
3846 | s12z_elf_final_processing (void) | |
3847 | { | |
3848 | } |