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252b5132 RH |
1 | /* m88k.c -- Assembler for the Motorola 88000 |
2 | Contributed by Devon Bowen of Buffalo University | |
3 | and Torbjorn Granlund of the Swedish Institute of Computer Science. | |
7dcc9865 | 4 | Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 96, 97, 98, 1999 |
252b5132 RH |
5 | Free Software Foundation, Inc. |
6 | ||
7 | This file is part of GAS, the GNU Assembler. | |
8 | ||
9 | GAS is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2, or (at your option) | |
12 | any later version. | |
13 | ||
14 | GAS is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with GAS; see the file COPYING. If not, write to the Free | |
21 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
22 | 02111-1307, USA. */ | |
23 | ||
24 | #include <ctype.h> | |
25 | #include "as.h" | |
26 | #include "subsegs.h" | |
27 | #include "m88k-opcode.h" | |
28 | ||
29 | struct field_val_assoc | |
30 | { | |
31 | char *name; | |
32 | unsigned val; | |
33 | }; | |
34 | ||
35 | struct field_val_assoc cr_regs[] = | |
36 | { | |
37 | {"PID", 0}, | |
38 | {"PSR", 1}, | |
39 | {"EPSR", 2}, | |
40 | {"SSBR", 3}, | |
41 | {"SXIP", 4}, | |
42 | {"SNIP", 5}, | |
43 | {"SFIP", 6}, | |
44 | {"VBR", 7}, | |
45 | {"DMT0", 8}, | |
46 | {"DMD0", 9}, | |
47 | {"DMA0", 10}, | |
48 | {"DMT1", 11}, | |
49 | {"DMD1", 12}, | |
50 | {"DMA1", 13}, | |
51 | {"DMT2", 14}, | |
52 | {"DMD2", 15}, | |
53 | {"DMA2", 16}, | |
54 | {"SR0", 17}, | |
55 | {"SR1", 18}, | |
56 | {"SR2", 19}, | |
57 | {"SR3", 20}, | |
58 | ||
59 | {NULL, 0}, | |
60 | }; | |
61 | ||
62 | struct field_val_assoc fcr_regs[] = | |
63 | { | |
64 | {"FPECR", 0}, | |
65 | {"FPHS1", 1}, | |
66 | {"FPLS1", 2}, | |
67 | {"FPHS2", 3}, | |
68 | {"FPLS2", 4}, | |
69 | {"FPPT", 5}, | |
70 | {"FPRH", 6}, | |
71 | {"FPRL", 7}, | |
72 | {"FPIT", 8}, | |
73 | ||
74 | {"FPSR", 62}, | |
75 | {"FPCR", 63}, | |
76 | ||
77 | {NULL, 0}, | |
78 | }; | |
79 | ||
80 | struct field_val_assoc cmpslot[] = | |
81 | { | |
82 | /* Integer Floating point */ | |
83 | {"nc", 0}, | |
84 | {"cp", 1}, | |
85 | {"eq", 2}, | |
86 | {"ne", 3}, | |
87 | {"gt", 4}, | |
88 | {"le", 5}, | |
89 | {"lt", 6}, | |
90 | {"ge", 7}, | |
91 | {"hi", 8}, {"ou", 8}, | |
92 | {"ls", 9}, {"ib", 9}, | |
93 | {"lo", 10}, {"in", 10}, | |
94 | {"hs", 11}, {"ob", 11}, | |
95 | {"be", 12}, {"ue", 12}, | |
96 | {"nb", 13}, {"lg", 13}, | |
97 | {"he", 14}, {"ug", 14}, | |
98 | {"nh", 15}, {"ule", 15}, | |
99 | {"ul", 16}, | |
100 | {"uge", 17}, | |
101 | ||
102 | {NULL, 0}, | |
103 | }; | |
104 | ||
105 | struct field_val_assoc cndmsk[] = | |
106 | { | |
107 | {"gt0", 1}, | |
108 | {"eq0", 2}, | |
109 | {"ge0", 3}, | |
110 | {"lt0", 12}, | |
111 | {"ne0", 13}, | |
112 | {"le0", 14}, | |
113 | ||
114 | {NULL, 0}, | |
115 | }; | |
116 | ||
117 | struct m88k_insn | |
118 | { | |
119 | unsigned long opcode; | |
120 | expressionS exp; | |
121 | enum reloc_type reloc; | |
122 | }; | |
123 | ||
124 | static char *get_bf PARAMS ((char *param, unsigned *valp)); | |
125 | static char *get_cmp PARAMS ((char *param, unsigned *valp)); | |
126 | static char *get_cnd PARAMS ((char *param, unsigned *valp)); | |
127 | static char *get_cr PARAMS ((char *param, unsigned *regnop)); | |
128 | static char *get_fcr PARAMS ((char *param, unsigned *regnop)); | |
129 | static char *get_imm16 PARAMS ((char *param, struct m88k_insn *insn)); | |
130 | static char *get_o6 PARAMS ((char *param, unsigned *valp)); | |
131 | static char *get_reg PARAMS ((char *param, unsigned *regnop, int reg_prefix)); | |
132 | static char *get_vec9 PARAMS ((char *param, unsigned *valp)); | |
133 | static char *getval PARAMS ((char *param, unsigned int *valp)); | |
134 | ||
135 | static char *get_pcr PARAMS ((char *param, struct m88k_insn *insn, | |
136 | enum reloc_type reloc)); | |
137 | ||
138 | static int calcop PARAMS ((struct m88k_opcode *format, | |
139 | char *param, struct m88k_insn *insn)); | |
140 | ||
252b5132 RH |
141 | extern char *myname; |
142 | static struct hash_control *op_hash = NULL; | |
143 | ||
144 | /* These bits should be turned off in the first address of every segment */ | |
145 | int md_seg_align = 7; | |
146 | ||
147 | /* These chars start a comment anywhere in a source file (except inside | |
148 | another comment */ | |
149 | const char comment_chars[] = ";"; | |
150 | ||
82efde3a | 151 | /* These chars only start a comment at the beginning of a line. */ |
252b5132 RH |
152 | const char line_comment_chars[] = "#"; |
153 | ||
154 | const char line_separator_chars[] = ""; | |
155 | ||
156 | /* Chars that can be used to separate mant from exp in floating point nums */ | |
157 | const char EXP_CHARS[] = "eE"; | |
158 | ||
159 | /* Chars that mean this number is a floating point constant */ | |
160 | /* as in 0f123.456 */ | |
161 | /* or 0H1.234E-12 (see exp chars above) */ | |
162 | const char FLT_CHARS[] = "dDfF"; | |
163 | ||
164 | extern void float_cons (), cons (), s_globl (), s_space (), | |
165 | s_set (), s_lcomm (); | |
166 | ||
167 | const pseudo_typeS md_pseudo_table[] = | |
168 | { | |
169 | {"align", s_align_bytes, 4}, | |
170 | {"def", s_set, 0}, | |
171 | {"dfloat", float_cons, 'd'}, | |
172 | {"ffloat", float_cons, 'f'}, | |
173 | {"global", s_globl, 0}, | |
174 | {"half", cons, 2}, | |
175 | {"bss", s_lcomm, 1}, | |
176 | {"string", stringer, 0}, | |
177 | {"word", cons, 4}, | |
178 | /* Force set to be treated as an instruction. */ | |
179 | {"set", NULL, 0}, | |
180 | {".set", s_set, 0}, | |
181 | {0} | |
182 | }; | |
183 | ||
184 | void | |
185 | md_begin () | |
186 | { | |
187 | const char *retval = NULL; | |
188 | unsigned int i = 0; | |
189 | ||
190 | /* initialize hash table */ | |
191 | ||
192 | op_hash = hash_new (); | |
193 | ||
194 | /* loop until you see the end of the list */ | |
195 | ||
196 | while (*m88k_opcodes[i].name) | |
197 | { | |
198 | char *name = m88k_opcodes[i].name; | |
199 | ||
200 | /* hash each mnemonic and record its position */ | |
201 | ||
202 | retval = hash_insert (op_hash, name, &m88k_opcodes[i]); | |
203 | ||
204 | if (retval != NULL) | |
205 | as_fatal (_("Can't hash instruction '%s':%s"), | |
206 | m88k_opcodes[i].name, retval); | |
207 | ||
208 | /* skip to next unique mnemonic or end of list */ | |
209 | ||
210 | for (i++; !strcmp (m88k_opcodes[i].name, name); i++) | |
211 | ; | |
212 | } | |
213 | } | |
214 | \f | |
215 | CONST char *md_shortopts = ""; | |
216 | struct option md_longopts[] = { | |
217 | {NULL, no_argument, NULL, 0} | |
218 | }; | |
bc805888 | 219 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
220 | |
221 | int | |
222 | md_parse_option (c, arg) | |
223 | int c; | |
224 | char *arg; | |
225 | { | |
226 | return 0; | |
227 | } | |
228 | ||
229 | void | |
230 | md_show_usage (stream) | |
231 | FILE *stream; | |
232 | { | |
233 | } | |
234 | \f | |
235 | void | |
236 | md_assemble (op) | |
237 | char *op; | |
238 | { | |
239 | char *param, *thisfrag; | |
240 | char c; | |
241 | struct m88k_opcode *format; | |
242 | struct m88k_insn insn; | |
243 | ||
244 | assert (op); | |
245 | ||
246 | /* skip over instruction to find parameters */ | |
247 | ||
248 | for (param = op; *param != 0 && !isspace (*param); param++) | |
249 | ; | |
250 | c = *param; | |
251 | *param++ = '\0'; | |
252 | ||
253 | /* try to find the instruction in the hash table */ | |
254 | ||
255 | if ((format = (struct m88k_opcode *) hash_find (op_hash, op)) == NULL) | |
256 | { | |
257 | as_bad (_("Invalid mnemonic '%s'"), op); | |
258 | return; | |
259 | } | |
260 | ||
261 | /* try parsing this instruction into insn */ | |
262 | ||
263 | insn.exp.X_add_symbol = 0; | |
264 | insn.exp.X_op_symbol = 0; | |
265 | insn.exp.X_add_number = 0; | |
266 | insn.exp.X_op = O_illegal; | |
267 | insn.reloc = NO_RELOC; | |
268 | ||
269 | while (!calcop (format, param, &insn)) | |
270 | { | |
271 | /* if it doesn't parse try the next instruction */ | |
272 | ||
273 | if (!strcmp (format[0].name, format[1].name)) | |
274 | format++; | |
275 | else | |
276 | { | |
277 | as_fatal (_("Parameter syntax error")); | |
278 | return; | |
279 | } | |
280 | } | |
281 | ||
282 | /* grow the current frag and plop in the opcode */ | |
283 | ||
284 | thisfrag = frag_more (4); | |
285 | md_number_to_chars (thisfrag, insn.opcode, 4); | |
286 | ||
287 | /* if this instruction requires labels mark it for later */ | |
288 | ||
289 | switch (insn.reloc) | |
290 | { | |
291 | case NO_RELOC: | |
292 | break; | |
293 | ||
294 | case RELOC_LO16: | |
295 | case RELOC_HI16: | |
296 | fix_new_exp (frag_now, | |
297 | thisfrag - frag_now->fr_literal + 2, | |
298 | 2, | |
299 | &insn.exp, | |
300 | 0, | |
301 | insn.reloc); | |
302 | break; | |
303 | ||
304 | case RELOC_IW16: | |
305 | fix_new_exp (frag_now, | |
306 | thisfrag - frag_now->fr_literal, | |
307 | 4, | |
308 | &insn.exp, | |
309 | 0, | |
310 | insn.reloc); | |
311 | break; | |
312 | ||
313 | case RELOC_PC16: | |
314 | fix_new_exp (frag_now, | |
315 | thisfrag - frag_now->fr_literal + 2, | |
316 | 2, | |
317 | &insn.exp, | |
318 | 1, | |
319 | insn.reloc); | |
320 | break; | |
321 | ||
322 | case RELOC_PC26: | |
323 | fix_new_exp (frag_now, | |
324 | thisfrag - frag_now->fr_literal, | |
325 | 4, | |
326 | &insn.exp, | |
327 | 1, | |
328 | insn.reloc); | |
329 | break; | |
330 | ||
331 | default: | |
332 | as_fatal (_("Unknown relocation type")); | |
333 | break; | |
334 | } | |
335 | } | |
336 | ||
337 | static int | |
338 | calcop (format, param, insn) | |
339 | struct m88k_opcode *format; | |
340 | char *param; | |
341 | struct m88k_insn *insn; | |
342 | { | |
343 | char *fmt = format->op_spec; | |
344 | int f; | |
345 | unsigned val; | |
346 | unsigned opcode; | |
347 | int reg_prefix = 'r'; | |
348 | ||
349 | insn->opcode = format->opcode; | |
350 | opcode = 0; | |
351 | ||
352 | for (;;) | |
353 | { | |
354 | if (param == 0) | |
355 | return 0; | |
356 | f = *fmt++; | |
357 | switch (f) | |
358 | { | |
359 | case 0: | |
360 | insn->opcode |= opcode; | |
361 | return (*param == 0 || *param == '\n'); | |
362 | ||
363 | default: | |
364 | if (f != *param++) | |
365 | return 0; | |
366 | break; | |
367 | ||
368 | case 'd': | |
369 | param = get_reg (param, &val, reg_prefix); | |
370 | reg_prefix = 'r'; | |
371 | opcode |= val << 21; | |
372 | break; | |
373 | ||
374 | case 'o': | |
375 | param = get_o6 (param, &val); | |
376 | opcode |= ((val >> 2) << 7); | |
377 | break; | |
378 | ||
379 | case 'x': | |
380 | reg_prefix = 'x'; | |
381 | break; | |
382 | ||
383 | case '1': | |
384 | param = get_reg (param, &val, reg_prefix); | |
385 | reg_prefix = 'r'; | |
386 | opcode |= val << 16; | |
387 | break; | |
388 | ||
389 | case '2': | |
390 | param = get_reg (param, &val, reg_prefix); | |
391 | reg_prefix = 'r'; | |
392 | opcode |= val; | |
393 | break; | |
394 | ||
395 | case '3': | |
396 | param = get_reg (param, &val, 'r'); | |
397 | opcode |= (val << 16) | val; | |
398 | break; | |
399 | ||
400 | case 'I': | |
401 | param = get_imm16 (param, insn); | |
402 | break; | |
403 | ||
404 | case 'b': | |
405 | param = get_bf (param, &val); | |
406 | opcode |= val; | |
407 | break; | |
408 | ||
409 | case 'p': | |
410 | param = get_pcr (param, insn, RELOC_PC16); | |
411 | break; | |
412 | ||
413 | case 'P': | |
414 | param = get_pcr (param, insn, RELOC_PC26); | |
415 | break; | |
416 | ||
417 | case 'B': | |
418 | param = get_cmp (param, &val); | |
419 | opcode |= val; | |
420 | break; | |
421 | ||
422 | case 'M': | |
423 | param = get_cnd (param, &val); | |
424 | opcode |= val; | |
425 | break; | |
426 | ||
427 | case 'c': | |
428 | param = get_cr (param, &val); | |
429 | opcode |= val << 5; | |
430 | break; | |
431 | ||
432 | case 'f': | |
433 | param = get_fcr (param, &val); | |
434 | opcode |= val << 5; | |
435 | break; | |
436 | ||
437 | case 'V': | |
438 | param = get_vec9 (param, &val); | |
439 | opcode |= val; | |
440 | break; | |
441 | ||
442 | case '?': | |
443 | /* Having this here repeats the warning somtimes. | |
444 | But can't we stand that? */ | |
445 | as_warn (_("Use of obsolete instruction")); | |
446 | break; | |
447 | } | |
448 | } | |
449 | } | |
450 | ||
451 | static char * | |
452 | match_name (param, assoc_tab, valp) | |
453 | char *param; | |
454 | struct field_val_assoc *assoc_tab; | |
455 | unsigned *valp; | |
456 | { | |
457 | int i; | |
458 | char *name; | |
459 | int name_len; | |
460 | ||
461 | for (i = 0;; i++) | |
462 | { | |
463 | name = assoc_tab[i].name; | |
464 | if (name == NULL) | |
465 | return NULL; | |
466 | name_len = strlen (name); | |
467 | if (!strncmp (param, name, name_len)) | |
468 | { | |
469 | *valp = assoc_tab[i].val; | |
470 | return param + name_len; | |
471 | } | |
472 | } | |
473 | } | |
474 | ||
475 | static char * | |
476 | get_reg (param, regnop, reg_prefix) | |
477 | char *param; | |
478 | unsigned *regnop; | |
479 | int reg_prefix; | |
480 | { | |
481 | unsigned c; | |
482 | unsigned regno; | |
483 | ||
484 | c = *param++; | |
485 | if (c == reg_prefix) | |
486 | { | |
487 | regno = *param++ - '0'; | |
488 | if (regno < 10) | |
489 | { | |
490 | if (regno == 0) | |
491 | { | |
492 | *regnop = 0; | |
493 | return param; | |
494 | } | |
495 | c = *param - '0'; | |
496 | if (c < 10) | |
497 | { | |
498 | regno = regno * 10 + c; | |
499 | if (c < 32) | |
500 | { | |
501 | *regnop = regno; | |
502 | return param + 1; | |
503 | } | |
504 | } | |
505 | else | |
506 | { | |
507 | *regnop = regno; | |
508 | return param; | |
509 | } | |
510 | } | |
511 | return NULL; | |
512 | } | |
513 | else if (c == 's' && param[0] == 'p') | |
514 | { | |
515 | *regnop = 31; | |
516 | return param + 1; | |
517 | } | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
522 | static char * | |
523 | get_imm16 (param, insn) | |
524 | char *param; | |
525 | struct m88k_insn *insn; | |
526 | { | |
527 | enum reloc_type reloc = NO_RELOC; | |
528 | unsigned int val; | |
529 | char *save_ptr; | |
530 | ||
531 | if (!strncmp (param, "hi16", 4) && !isalnum (param[4])) | |
532 | { | |
533 | reloc = RELOC_HI16; | |
534 | param += 4; | |
535 | } | |
536 | else if (!strncmp (param, "lo16", 4) && !isalnum (param[4])) | |
537 | { | |
538 | reloc = RELOC_LO16; | |
539 | param += 4; | |
540 | } | |
541 | else if (!strncmp (param, "iw16", 4) && !isalnum (param[4])) | |
542 | { | |
543 | reloc = RELOC_IW16; | |
544 | param += 4; | |
545 | } | |
546 | ||
547 | save_ptr = input_line_pointer; | |
548 | input_line_pointer = param; | |
549 | expression (&insn->exp); | |
550 | param = input_line_pointer; | |
551 | input_line_pointer = save_ptr; | |
552 | ||
553 | val = insn->exp.X_add_number; | |
554 | ||
555 | if (insn->exp.X_op == O_constant) | |
556 | { | |
557 | /* Insert the value now, and reset reloc to NO_RELOC. */ | |
558 | if (reloc == NO_RELOC) | |
559 | { | |
560 | /* Warn about too big expressions if not surrounded by xx16. */ | |
561 | if (val > 0xffff) | |
562 | as_warn (_("Expression truncated to 16 bits")); | |
563 | } | |
564 | ||
565 | if (reloc == RELOC_HI16) | |
566 | val >>= 16; | |
567 | ||
568 | insn->opcode |= val & 0xffff; | |
569 | reloc = NO_RELOC; | |
570 | } | |
571 | else if (reloc == NO_RELOC) | |
572 | /* We accept a symbol even without lo16, hi16, etc, and assume | |
573 | lo16 was intended. */ | |
574 | reloc = RELOC_LO16; | |
575 | ||
576 | insn->reloc = reloc; | |
577 | ||
578 | return param; | |
579 | } | |
580 | ||
581 | static char * | |
582 | get_pcr (param, insn, reloc) | |
583 | char *param; | |
584 | struct m88k_insn *insn; | |
585 | enum reloc_type reloc; | |
586 | { | |
587 | char *saveptr, *saveparam; | |
588 | ||
589 | saveptr = input_line_pointer; | |
590 | input_line_pointer = param; | |
591 | ||
592 | expression (&insn->exp); | |
593 | ||
594 | saveparam = input_line_pointer; | |
595 | input_line_pointer = saveptr; | |
596 | ||
597 | /* Botch: We should relocate now if O_constant. */ | |
598 | insn->reloc = reloc; | |
599 | ||
600 | return saveparam; | |
601 | } | |
602 | ||
603 | static char * | |
604 | get_cmp (param, valp) | |
605 | char *param; | |
606 | unsigned *valp; | |
607 | { | |
608 | unsigned int val; | |
609 | char *save_ptr; | |
610 | ||
611 | save_ptr = param; | |
612 | ||
613 | param = match_name (param, cmpslot, valp); | |
614 | val = *valp; | |
615 | ||
616 | if (param == NULL) | |
617 | { | |
618 | param = save_ptr; | |
619 | ||
620 | save_ptr = input_line_pointer; | |
621 | input_line_pointer = param; | |
622 | val = get_absolute_expression (); | |
623 | param = input_line_pointer; | |
624 | input_line_pointer = save_ptr; | |
625 | ||
626 | if (val >= 32) | |
627 | { | |
628 | as_warn (_("Expression truncated to 5 bits")); | |
629 | val %= 32; | |
630 | } | |
631 | } | |
632 | ||
633 | *valp = val << 21; | |
634 | return param; | |
635 | } | |
636 | ||
637 | static char * | |
638 | get_cnd (param, valp) | |
639 | char *param; | |
640 | unsigned *valp; | |
641 | { | |
642 | unsigned int val; | |
643 | ||
644 | if (isdigit (*param)) | |
645 | { | |
646 | param = getval (param, &val); | |
647 | ||
648 | if (val >= 32) | |
649 | { | |
650 | as_warn (_("Expression truncated to 5 bits")); | |
651 | val %= 32; | |
652 | } | |
653 | } | |
654 | else | |
655 | { | |
656 | if (isupper (*param)) | |
657 | *param = tolower (*param); | |
658 | ||
659 | if (isupper (param[1])) | |
660 | param[1] = tolower (param[1]); | |
661 | ||
662 | param = match_name (param, cndmsk, valp); | |
663 | ||
664 | if (param == NULL) | |
665 | return NULL; | |
666 | ||
667 | val = *valp; | |
668 | } | |
669 | ||
670 | *valp = val << 21; | |
671 | return param; | |
672 | } | |
673 | ||
674 | static char * | |
675 | get_bf2 (param, bc) | |
676 | char *param; | |
677 | int bc; | |
678 | { | |
679 | int depth = 0; | |
680 | int c; | |
681 | ||
682 | for (;;) | |
683 | { | |
684 | c = *param; | |
685 | if (c == 0) | |
686 | return param; | |
687 | else if (c == '(') | |
688 | depth++; | |
689 | else if (c == ')') | |
690 | depth--; | |
691 | else if (c == bc && depth <= 0) | |
692 | return param; | |
693 | param++; | |
694 | } | |
695 | } | |
696 | ||
697 | static char * | |
698 | get_bf_offset_expression (param, offsetp) | |
699 | char *param; | |
700 | unsigned *offsetp; | |
701 | { | |
702 | unsigned offset; | |
703 | ||
704 | if (isalpha (param[0])) | |
705 | { | |
706 | if (isupper (param[0])) | |
707 | param[0] = tolower (param[0]); | |
708 | if (isupper (param[1])) | |
709 | param[1] = tolower (param[1]); | |
710 | ||
711 | param = match_name (param, cmpslot, offsetp); | |
712 | ||
713 | return param; | |
714 | } | |
715 | else | |
716 | { | |
717 | input_line_pointer = param; | |
718 | offset = get_absolute_expression (); | |
719 | param = input_line_pointer; | |
720 | } | |
721 | ||
722 | *offsetp = offset; | |
723 | return param; | |
724 | } | |
725 | ||
726 | static char * | |
727 | get_bf (param, valp) | |
728 | char *param; | |
729 | unsigned *valp; | |
730 | { | |
731 | unsigned offset = 0; | |
732 | unsigned width = 0; | |
733 | char *xp; | |
734 | char *save_ptr; | |
735 | ||
736 | xp = get_bf2 (param, '<'); | |
737 | ||
738 | save_ptr = input_line_pointer; | |
739 | input_line_pointer = param; | |
740 | if (*xp == 0) | |
741 | { | |
742 | /* We did not find '<'. We have an offset (width implicitly 32). */ | |
743 | param = get_bf_offset_expression (param, &offset); | |
744 | input_line_pointer = save_ptr; | |
745 | if (param == NULL) | |
746 | return NULL; | |
747 | } | |
748 | else | |
749 | { | |
750 | *xp++ = 0; /* Overwrite the '<' */ | |
751 | param = get_bf2 (xp, '>'); | |
752 | if (*param == 0) | |
753 | return NULL; | |
754 | *param++ = 0; /* Overwrite the '>' */ | |
755 | ||
756 | width = get_absolute_expression (); | |
757 | xp = get_bf_offset_expression (xp, &offset); | |
758 | input_line_pointer = save_ptr; | |
759 | ||
760 | if (xp + 1 != param) | |
761 | return NULL; | |
762 | } | |
763 | ||
764 | *valp = ((width % 32) << 5) | (offset % 32); | |
765 | ||
766 | return param; | |
767 | } | |
768 | ||
769 | static char * | |
770 | get_cr (param, regnop) | |
771 | char *param; | |
772 | unsigned *regnop; | |
773 | { | |
774 | unsigned regno; | |
775 | unsigned c; | |
776 | ||
777 | if (!strncmp (param, "cr", 2)) | |
778 | { | |
779 | param += 2; | |
780 | ||
781 | regno = *param++ - '0'; | |
782 | if (regno < 10) | |
783 | { | |
784 | if (regno == 0) | |
785 | { | |
786 | *regnop = 0; | |
787 | return param; | |
788 | } | |
789 | c = *param - '0'; | |
790 | if (c < 10) | |
791 | { | |
792 | regno = regno * 10 + c; | |
793 | if (c < 64) | |
794 | { | |
795 | *regnop = regno; | |
796 | return param + 1; | |
797 | } | |
798 | } | |
799 | else | |
800 | { | |
801 | *regnop = regno; | |
802 | return param; | |
803 | } | |
804 | } | |
805 | return NULL; | |
806 | } | |
807 | ||
808 | param = match_name (param, cr_regs, regnop); | |
809 | ||
810 | return param; | |
811 | } | |
812 | ||
813 | static char * | |
814 | get_fcr (param, regnop) | |
815 | char *param; | |
816 | unsigned *regnop; | |
817 | { | |
818 | unsigned regno; | |
819 | unsigned c; | |
820 | ||
821 | if (!strncmp (param, "fcr", 3)) | |
822 | { | |
823 | param += 3; | |
824 | ||
825 | regno = *param++ - '0'; | |
826 | if (regno < 10) | |
827 | { | |
828 | if (regno == 0) | |
829 | { | |
830 | *regnop = 0; | |
831 | return param; | |
832 | } | |
833 | c = *param - '0'; | |
834 | if (c < 10) | |
835 | { | |
836 | regno = regno * 10 + c; | |
837 | if (c < 64) | |
838 | { | |
839 | *regnop = regno; | |
840 | return param + 1; | |
841 | } | |
842 | } | |
843 | else | |
844 | { | |
845 | *regnop = regno; | |
846 | return param; | |
847 | } | |
848 | } | |
849 | return NULL; | |
850 | } | |
851 | ||
852 | param = match_name (param, fcr_regs, regnop); | |
853 | ||
854 | return param; | |
855 | } | |
856 | ||
857 | static char * | |
858 | get_vec9 (param, valp) | |
859 | char *param; | |
860 | unsigned *valp; | |
861 | { | |
862 | unsigned val; | |
863 | char *save_ptr; | |
864 | ||
865 | save_ptr = input_line_pointer; | |
866 | input_line_pointer = param; | |
867 | val = get_absolute_expression (); | |
868 | param = input_line_pointer; | |
869 | input_line_pointer = save_ptr; | |
870 | ||
871 | if (val >= 1 << 9) | |
872 | as_warn (_("Expression truncated to 9 bits")); | |
873 | ||
874 | *valp = val % (1 << 9); | |
875 | ||
876 | return param; | |
877 | } | |
878 | ||
879 | static char * | |
880 | get_o6 (param, valp) | |
881 | char *param; | |
882 | unsigned *valp; | |
883 | { | |
884 | unsigned val; | |
885 | char *save_ptr; | |
886 | ||
887 | save_ptr = input_line_pointer; | |
888 | input_line_pointer = param; | |
889 | val = get_absolute_expression (); | |
890 | param = input_line_pointer; | |
891 | input_line_pointer = save_ptr; | |
892 | ||
893 | if (val & 0x3) | |
894 | as_warn (_("Removed lower 2 bits of expression")); | |
895 | ||
896 | *valp = val; | |
897 | ||
898 | return(param); | |
899 | } | |
900 | ||
901 | #define hexval(z) \ | |
902 | (isdigit (z) ? (z) - '0' : \ | |
903 | islower (z) ? (z) - 'a' + 10 : \ | |
904 | isupper (z) ? (z) - 'A' + 10 : -1) | |
905 | ||
906 | static char * | |
907 | getval (param, valp) | |
908 | char *param; | |
909 | unsigned int *valp; | |
910 | { | |
911 | unsigned int val = 0; | |
912 | unsigned int c; | |
913 | ||
914 | c = *param++; | |
915 | if (c == '0') | |
916 | { | |
917 | c = *param++; | |
918 | if (c == 'x' || c == 'X') | |
919 | { | |
920 | c = *param++; | |
921 | c = hexval (c); | |
922 | while (c < 16) | |
923 | { | |
924 | val = val * 16 + c; | |
925 | c = *param++; | |
926 | c = hexval (c); | |
927 | } | |
928 | } | |
929 | else | |
930 | { | |
931 | c -= '0'; | |
932 | while (c < 8) | |
933 | { | |
934 | val = val * 8 + c; | |
935 | c = *param++ - '0'; | |
936 | } | |
937 | } | |
938 | } | |
939 | else | |
940 | { | |
941 | c -= '0'; | |
942 | while (c < 10) | |
943 | { | |
944 | val = val * 10 + c; | |
945 | c = *param++ - '0'; | |
946 | } | |
947 | } | |
948 | ||
949 | *valp = val; | |
950 | return param - 1; | |
951 | } | |
952 | ||
953 | void | |
954 | md_number_to_chars (buf, val, nbytes) | |
955 | char *buf; | |
956 | valueT val; | |
957 | int nbytes; | |
958 | { | |
959 | number_to_chars_bigendian (buf, val, nbytes); | |
960 | } | |
961 | ||
962 | #if 0 | |
963 | ||
964 | /* This routine is never called. What is it for? | |
965 | Ian Taylor, Cygnus Support 13 Jul 1993 */ | |
966 | ||
967 | void | |
968 | md_number_to_imm (buf, val, nbytes, fixP, seg_type) | |
969 | unsigned char *buf; | |
970 | unsigned int val; | |
971 | int nbytes; | |
972 | fixS *fixP; | |
973 | int seg_type; | |
974 | { | |
975 | if (seg_type != N_TEXT || fixP->fx_r_type == NO_RELOC) | |
976 | { | |
977 | switch (nbytes) | |
978 | { | |
979 | case 4: | |
980 | *buf++ = val >> 24; | |
981 | *buf++ = val >> 16; | |
982 | case 2: | |
983 | *buf++ = val >> 8; | |
984 | case 1: | |
985 | *buf = val; | |
986 | break; | |
987 | ||
988 | default: | |
989 | abort (); | |
990 | } | |
991 | return; | |
992 | } | |
993 | ||
994 | switch (fixP->fx_r_type) | |
995 | { | |
996 | case RELOC_IW16: | |
997 | buf[2] = val >> 8; | |
998 | buf[3] = val; | |
999 | break; | |
1000 | ||
1001 | case RELOC_LO16: | |
1002 | buf[0] = val >> 8; | |
1003 | buf[1] = val; | |
1004 | break; | |
1005 | ||
1006 | case RELOC_HI16: | |
1007 | buf[0] = val >> 24; | |
1008 | buf[1] = val >> 16; | |
1009 | break; | |
1010 | ||
1011 | case RELOC_PC16: | |
1012 | val += 4; | |
1013 | buf[0] = val >> 10; | |
1014 | buf[1] = val >> 2; | |
1015 | break; | |
1016 | ||
1017 | case RELOC_PC26: | |
1018 | val += 4; | |
1019 | buf[0] |= (val >> 26) & 0x03; | |
1020 | buf[1] = val >> 18; | |
1021 | buf[2] = val >> 10; | |
1022 | buf[3] = val >> 2; | |
1023 | break; | |
1024 | ||
1025 | case RELOC_32: | |
1026 | buf[0] = val >> 24; | |
1027 | buf[1] = val >> 16; | |
1028 | buf[2] = val >> 8; | |
1029 | buf[3] = val; | |
1030 | break; | |
1031 | ||
1032 | default: | |
1033 | as_fatal (_("Bad relocation type")); | |
1034 | break; | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | #endif /* 0 */ | |
1039 | ||
1040 | void | |
1041 | md_number_to_disp (buf, val, nbytes) | |
1042 | char *buf; | |
1043 | int val; | |
1044 | int nbytes; | |
1045 | { | |
1046 | as_fatal (_("md_number_to_disp not defined")); | |
1047 | md_number_to_chars (buf, val, nbytes); | |
1048 | } | |
1049 | ||
1050 | void | |
1051 | md_number_to_field (buf, val, nbytes) | |
1052 | char *buf; | |
1053 | int val; | |
1054 | int nbytes; | |
1055 | { | |
1056 | as_fatal (_("md_number_to_field not defined")); | |
1057 | md_number_to_chars (buf, val, nbytes); | |
1058 | } | |
1059 | ||
1060 | #define MAX_LITTLENUMS 6 | |
1061 | ||
1062 | /* Turn a string in input_line_pointer into a floating point constant of type | |
1063 | type, and store the appropriate bytes in *litP. The number of LITTLENUMS | |
1064 | emitted is stored in *sizeP . An error message is returned, or NULL on OK. | |
1065 | */ | |
1066 | char * | |
1067 | md_atof (type, litP, sizeP) | |
1068 | char type; | |
1069 | char *litP; | |
1070 | int *sizeP; | |
1071 | { | |
1072 | int prec; | |
1073 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1074 | LITTLENUM_TYPE *wordP; | |
1075 | char *t; | |
1076 | ||
1077 | switch (type) | |
1078 | { | |
1079 | case 'f': | |
1080 | case 'F': | |
1081 | case 's': | |
1082 | case 'S': | |
1083 | prec = 2; | |
1084 | break; | |
1085 | ||
1086 | case 'd': | |
1087 | case 'D': | |
1088 | case 'r': | |
1089 | case 'R': | |
1090 | prec = 4; | |
1091 | break; | |
1092 | ||
1093 | case 'x': | |
1094 | case 'X': | |
1095 | prec = 6; | |
1096 | break; | |
1097 | ||
1098 | case 'p': | |
1099 | case 'P': | |
1100 | prec = 6; | |
1101 | break; | |
1102 | ||
1103 | default: | |
1104 | *sizeP = 0; | |
1105 | return _("Bad call to MD_ATOF()"); | |
1106 | } | |
1107 | t = atof_ieee (input_line_pointer, type, words); | |
1108 | if (t) | |
1109 | input_line_pointer = t; | |
1110 | ||
1111 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1112 | for (wordP = words; prec--;) | |
1113 | { | |
1114 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1115 | litP += sizeof (LITTLENUM_TYPE); | |
1116 | } | |
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | int md_short_jump_size = 4; | |
1121 | ||
1122 | void | |
1123 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1124 | char *ptr; | |
1125 | addressT from_addr, to_addr; | |
1126 | fragS *frag; | |
1127 | symbolS *to_symbol; | |
1128 | { | |
1129 | ptr[0] = (char) 0xc0; | |
1130 | ptr[1] = 0x00; | |
1131 | ptr[2] = 0x00; | |
1132 | ptr[3] = 0x00; | |
1133 | fix_new (frag, | |
1134 | ptr - frag->fr_literal, | |
1135 | 4, | |
1136 | to_symbol, | |
1137 | (offsetT) 0, | |
1138 | 0, | |
1139 | RELOC_PC26); /* Botch: Shouldn't this be RELOC_PC16? */ | |
1140 | } | |
1141 | ||
1142 | int md_long_jump_size = 4; | |
1143 | ||
1144 | void | |
1145 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
1146 | char *ptr; | |
1147 | addressT from_addr, to_addr; | |
1148 | fragS *frag; | |
1149 | symbolS *to_symbol; | |
1150 | { | |
1151 | ptr[0] = (char) 0xc0; | |
1152 | ptr[1] = 0x00; | |
1153 | ptr[2] = 0x00; | |
1154 | ptr[3] = 0x00; | |
1155 | fix_new (frag, | |
1156 | ptr - frag->fr_literal, | |
1157 | 4, | |
1158 | to_symbol, | |
1159 | (offsetT) 0, | |
1160 | 0, | |
1161 | RELOC_PC26); | |
1162 | } | |
1163 | ||
1164 | int | |
1165 | md_estimate_size_before_relax (fragP, segment_type) | |
1166 | fragS *fragP; | |
1167 | segT segment_type; | |
1168 | { | |
1169 | as_fatal (_("Relaxation should never occur")); | |
1170 | return (-1); | |
1171 | } | |
1172 | ||
1173 | #if 0 | |
1174 | ||
1175 | /* As far as I can tell, this routine is never called. What is it | |
1176 | doing here? | |
1177 | Ian Taylor, Cygnus Support 13 Jul 1993 */ | |
1178 | ||
252b5132 RH |
1179 | /* |
1180 | * Risc relocations are completely different, so it needs | |
1181 | * this machine dependent routine to emit them. | |
1182 | */ | |
1183 | void | |
1184 | emit_relocations (fixP, segment_address_in_file) | |
1185 | fixS *fixP; | |
1186 | relax_addressT segment_address_in_file; | |
1187 | { | |
1188 | struct reloc_info_m88k ri; | |
1189 | symbolS *symbolP; | |
1190 | extern char *next_object_file_charP; | |
1191 | ||
1192 | bzero ((char *) &ri, sizeof (ri)); | |
1193 | for (; fixP; fixP = fixP->fx_next) | |
1194 | { | |
1195 | if (fixP->fx_r_type >= NO_RELOC) | |
1196 | { | |
1197 | fprintf (stderr, "fixP->fx_r_type = %d\n", fixP->fx_r_type); | |
1198 | abort (); | |
1199 | } | |
1200 | ||
1201 | if ((symbolP = fixP->fx_addsy) != NULL) | |
1202 | { | |
1203 | ri.r_address = fixP->fx_frag->fr_address + | |
1204 | fixP->fx_where - segment_address_in_file; | |
1205 | if ((symbolP->sy_type & N_TYPE) == N_UNDF) | |
1206 | { | |
1207 | ri.r_extern = 1; | |
1208 | ri.r_symbolnum = symbolP->sy_number; | |
1209 | } | |
1210 | else | |
1211 | { | |
1212 | ri.r_extern = 0; | |
1213 | ri.r_symbolnum = symbolP->sy_type & N_TYPE; | |
1214 | } | |
7dcc9865 | 1215 | if (symbolP && symbol_get_frag (symbolP)) |
252b5132 | 1216 | { |
7dcc9865 | 1217 | ri.r_addend = symbol_get_frag (symbolP)->fr_address; |
252b5132 RH |
1218 | } |
1219 | ri.r_type = fixP->fx_r_type; | |
1220 | if (fixP->fx_pcrel) | |
1221 | { | |
1222 | ri.r_addend -= ri.r_address; | |
1223 | } | |
1224 | else | |
1225 | { | |
1226 | ri.r_addend = fixP->fx_addnumber; | |
1227 | } | |
1228 | ||
1229 | append (&next_object_file_charP, (char *) &ri, sizeof (ri)); | |
1230 | } | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | #endif /* 0 */ | |
1235 | ||
1236 | #if 0 | |
1237 | ||
1238 | /* This routine can be subsumed by s_lcomm in read.c. | |
1239 | Ian Taylor, Cygnus Support 13 Jul 1993 */ | |
1240 | ||
252b5132 RH |
1241 | static void |
1242 | s_bss () | |
1243 | { | |
1244 | char *name; | |
1245 | char c; | |
1246 | char *p; | |
1247 | int temp, bss_align; | |
1248 | symbolS *symbolP; | |
1249 | ||
1250 | name = input_line_pointer; | |
1251 | c = get_symbol_end (); | |
1252 | p = input_line_pointer; | |
1253 | *p = c; | |
1254 | SKIP_WHITESPACE (); | |
1255 | if (*input_line_pointer != ',') | |
1256 | { | |
1257 | as_warn (_("Expected comma after name")); | |
1258 | ignore_rest_of_line (); | |
1259 | return; | |
1260 | } | |
1261 | input_line_pointer++; | |
1262 | if ((temp = get_absolute_expression ()) < 0) | |
1263 | { | |
1264 | as_warn (_("BSS length (%d.) <0! Ignored."), temp); | |
1265 | ignore_rest_of_line (); | |
1266 | return; | |
1267 | } | |
1268 | *p = 0; | |
1269 | symbolP = symbol_find_or_make (name); | |
1270 | *p = c; | |
1271 | if (*input_line_pointer == ',') | |
1272 | { | |
1273 | input_line_pointer++; | |
1274 | bss_align = get_absolute_expression (); | |
1275 | } | |
1276 | else | |
1277 | bss_align = 0; | |
1278 | ||
1279 | if (!S_IS_DEFINED(symbolP) | |
1280 | || S_GET_SEGMENT(symbolP) == SEG_BSS) | |
1281 | { | |
1282 | if (! need_pass_2) | |
1283 | { | |
1284 | char *p; | |
1285 | segT current_seg = now_seg; | |
1286 | subsegT current_subseg = now_subseg; | |
1287 | ||
1288 | subseg_set (SEG_BSS, 1); /* switch to bss */ | |
1289 | ||
1290 | if (bss_align) | |
1291 | frag_align (bss_align, 0, 0); | |
1292 | ||
1293 | /* detach from old frag */ | |
7dcc9865 ILT |
1294 | if (symbolP->sy_type == N_BSS && symbol_get_frag (symbolP) != NULL) |
1295 | symbol_get_frag (symbolP)->fr_symbol = NULL; | |
252b5132 | 1296 | |
7dcc9865 | 1297 | symbol_set_frag (symbolP, frag_now); |
252b5132 RH |
1298 | p = frag_var (rs_org, 1, 1, (relax_substateT)0, symbolP, |
1299 | (offsetT) temp, (char *)0); | |
1300 | *p = 0; | |
1301 | S_SET_SEGMENT (symbolP, SEG_BSS); | |
1302 | ||
1303 | subseg_set (current_seg, current_subseg); | |
1304 | } | |
1305 | } | |
1306 | else | |
1307 | { | |
1308 | as_warn (_("Ignoring attempt to re-define symbol %s."), name); | |
1309 | } | |
1310 | ||
b75c0c92 | 1311 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) |
252b5132 RH |
1312 | { |
1313 | input_line_pointer++; | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | #endif /* 0 */ | |
1318 | ||
1319 | #ifdef M88KCOFF | |
1320 | ||
1321 | /* These functions are needed if we are linking with obj-coffbfd.c. | |
1322 | That file may be replaced by a more BFD oriented version at some | |
1323 | point. If that happens, these functions should be rexamined. | |
1324 | ||
1325 | Ian Lance Taylor, Cygnus Support, 13 July 1993. */ | |
1326 | ||
1327 | /* Given a fixS structure (created by a call to fix_new, above), | |
1328 | return the BFD relocation type to use for it. */ | |
1329 | ||
1330 | short | |
1331 | tc_coff_fix2rtype (fixp) | |
1332 | fixS *fixp; | |
1333 | { | |
1334 | switch (fixp->fx_r_type) | |
1335 | { | |
1336 | case RELOC_LO16: | |
1337 | return R_LVRT16; | |
1338 | case RELOC_HI16: | |
1339 | return R_HVRT16; | |
1340 | case RELOC_PC16: | |
1341 | return R_PCR16L; | |
1342 | case RELOC_PC26: | |
1343 | return R_PCR26L; | |
1344 | case RELOC_32: | |
1345 | return R_VRT32; | |
1346 | case RELOC_IW16: | |
1347 | return R_VRT16; | |
1348 | default: | |
1349 | abort (); | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | /* Apply a fixS to the object file. Since COFF does not use addends | |
1354 | in relocs, the addend is actually stored directly in the object | |
1355 | file itself. */ | |
1356 | ||
1357 | void | |
1358 | md_apply_fix (fixp, val) | |
1359 | fixS *fixp; | |
1360 | long val; | |
1361 | { | |
1362 | char *buf; | |
1363 | ||
1364 | buf = fixp->fx_frag->fr_literal + fixp->fx_where; | |
1365 | fixp->fx_offset = 0; | |
1366 | ||
1367 | switch (fixp->fx_r_type) | |
1368 | { | |
1369 | case RELOC_IW16: | |
1370 | fixp->fx_offset = val >> 16; | |
1371 | buf[2] = val >> 8; | |
1372 | buf[3] = val; | |
1373 | break; | |
1374 | ||
1375 | case RELOC_LO16: | |
1376 | fixp->fx_offset = val >> 16; | |
1377 | buf[0] = val >> 8; | |
1378 | buf[1] = val; | |
1379 | break; | |
1380 | ||
1381 | case RELOC_HI16: | |
1382 | fixp->fx_offset = val >> 16; | |
1383 | buf[0] = val >> 8; | |
1384 | buf[1] = val; | |
1385 | break; | |
1386 | ||
1387 | case RELOC_PC16: | |
1388 | buf[0] = val >> 10; | |
1389 | buf[1] = val >> 2; | |
1390 | break; | |
1391 | ||
1392 | case RELOC_PC26: | |
1393 | buf[0] |= (val >> 26) & 0x03; | |
1394 | buf[1] = val >> 18; | |
1395 | buf[2] = val >> 10; | |
1396 | buf[3] = val >> 2; | |
1397 | break; | |
1398 | ||
1399 | case RELOC_32: | |
1400 | buf[0] = val >> 24; | |
1401 | buf[1] = val >> 16; | |
1402 | buf[2] = val >> 8; | |
1403 | buf[3] = val; | |
1404 | break; | |
1405 | ||
1406 | default: | |
1407 | abort (); | |
1408 | } | |
1409 | } | |
1410 | ||
1411 | /* Where a PC relative offset is calculated from. On the m88k they | |
1412 | are calculated from just after the instruction. */ | |
1413 | ||
1414 | long | |
1415 | md_pcrel_from (fixp) | |
1416 | fixS *fixp; | |
1417 | { | |
1418 | switch (fixp->fx_r_type) | |
1419 | { | |
1420 | case RELOC_PC16: | |
1421 | return fixp->fx_frag->fr_address + fixp->fx_where - 2; | |
1422 | case RELOC_PC26: | |
1423 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
1424 | default: | |
1425 | abort (); | |
1426 | } | |
1427 | /*NOTREACHED*/ | |
1428 | } | |
1429 | ||
0a9ef439 | 1430 | /* Fill in rs_align_code fragments. */ |
252b5132 | 1431 | |
0a9ef439 RH |
1432 | void |
1433 | m88k_handle_align (fragp) | |
1434 | fragS *fragp; | |
252b5132 | 1435 | { |
0a9ef439 RH |
1436 | static const unsigned char nop_pattern[] = { 0xf4, 0x00, 0x58, 0x00 }; |
1437 | ||
1438 | int bytes; | |
1439 | char *p; | |
1440 | ||
1441 | if (fragp->fr_type != rs_align_code) | |
1442 | return; | |
1443 | ||
1444 | bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix; | |
1445 | p = fragp->fr_literal + fragp->fr_fix; | |
1446 | ||
1447 | if (bytes & 3) | |
252b5132 | 1448 | { |
0a9ef439 RH |
1449 | int fix = bytes & 3; |
1450 | memset (p, 0, fix); | |
1451 | p += fix; | |
1452 | bytes -= fix; | |
1453 | fragp->fr_fix += fix; | |
252b5132 | 1454 | } |
0a9ef439 RH |
1455 | |
1456 | memcpy (p, nop_pattern, 4); | |
1457 | fragp->fr_var = 4; | |
252b5132 RH |
1458 | } |
1459 | ||
1460 | #endif /* M88KCOFF */ |