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fecd2382 RP |
1 | /* i860.c -- Assemble for the I860 |
2 | Copyright (C) 1989 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* $Id$ */ | |
21 | ||
22 | #include "as.h" | |
23 | ||
24 | #include "i860-opcode.h" | |
25 | ||
26 | /* incorporated from i860.h */ | |
27 | enum reloc_type /* NOTE: three bits max, see struct reloc_info_i860.r_type */ | |
28 | { | |
29 | NO_RELOC = 0, BRADDR, LOW0, LOW1, LOW2, LOW3, LOW4, SPLIT0, SPLIT1, SPLIT2, RELOC_32, | |
30 | }; | |
31 | ||
32 | enum highlow_type /* NOTE: two bits max, see reloc_info_i860.r_type */ | |
33 | { | |
34 | NO_SPEC = 0, PAIR, HIGH, HIGHADJ, | |
35 | }; | |
36 | ||
37 | struct reloc_info_i860 | |
38 | { | |
39 | unsigned long r_address; | |
40 | /* | |
41 | * Using bit fields here is a bad idea because the order is not portable. :-( | |
42 | */ | |
43 | unsigned int r_symbolnum: 24; | |
44 | unsigned int r_pcrel : 1; | |
45 | unsigned int r_extern : 1; | |
46 | /* combining the two field simplifies the argument passing in "new_fix()" */ | |
47 | /* and is compatible with the existing Sparc #ifdef's */ | |
48 | /* r_type: highlow_type - bits 5,4; reloc_type - bits 3-0 */ | |
49 | unsigned int r_type : 6; | |
50 | long r_addend; | |
51 | }; | |
52 | ||
53 | #define relocation_info reloc_info_i860 | |
54 | ||
55 | ||
56 | void md_begin(); | |
57 | void md_end(); | |
58 | void md_number_to_chars(); | |
59 | void md_assemble(); | |
60 | char *md_atof(); | |
61 | void md_convert_frag(); | |
62 | void md_create_short_jump(); | |
63 | void md_create_long_jump(); | |
64 | int md_estimate_size_before_relax(); | |
65 | void md_number_to_imm(); | |
66 | void md_number_to_disp(); | |
67 | void md_number_to_field(); | |
68 | void md_ri_to_chars(); | |
69 | static void i860_ip(); | |
70 | void emit_machine_reloc(); | |
71 | ||
72 | int md_reloc_size = sizeof(struct relocation_info); | |
73 | ||
74 | void (*md_emit_relocations)() = emit_machine_reloc; | |
75 | ||
76 | const relax_typeS md_relax_table[] = { 0 }; | |
77 | ||
78 | /* handle of the OPCODE hash table */ | |
79 | static struct hash_control *op_hash = NULL; | |
80 | ||
81 | static void s_dual(), s_enddual(); | |
82 | static void s_atmp(); | |
83 | ||
84 | const pseudo_typeS | |
85 | md_pseudo_table[] = { | |
86 | { "dual", s_dual, 4 }, | |
87 | { "enddual", s_enddual, 4 }, | |
88 | { "atmp", s_atmp, 4 }, | |
89 | { NULL, 0, 0 }, | |
90 | }; | |
91 | ||
92 | int md_short_jump_size = 4; | |
93 | int md_long_jump_size = 4; | |
94 | ||
95 | /* This array holds the chars that always start a comment. If the | |
96 | pre-processor is disabled, these aren't very useful */ | |
97 | char comment_chars[] = "!/"; /* JF removed '|' from comment_chars */ | |
98 | ||
99 | /* This array holds the chars that only start a comment at the beginning of | |
100 | a line. If the line seems to have the form '# 123 filename' | |
101 | .line and .file directives will appear in the pre-processed output */ | |
102 | /* Note that input_file.c hand checks for '#' at the beginning of the | |
103 | first line of the input file. This is because the compiler outputs | |
104 | #NO_APP at the beginning of its output. */ | |
105 | /* Also note that comments like this one will always work. */ | |
106 | char line_comment_chars[] = "#/"; | |
107 | ||
108 | /* Chars that can be used to separate mant from exp in floating point nums */ | |
109 | char EXP_CHARS[] = "eE"; | |
110 | ||
111 | /* Chars that mean this number is a floating point constant */ | |
112 | /* As in 0f12.456 */ | |
113 | /* or 0d1.2345e12 */ | |
114 | char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
115 | ||
116 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be | |
117 | changed in read.c . Ideally it shouldn't have to know about it at all, | |
118 | but nothing is ideal around here. | |
119 | */ | |
120 | int size_reloc_info = sizeof(struct relocation_info); | |
121 | ||
122 | static unsigned char octal[256]; | |
123 | #define isoctal(c) octal[c] | |
124 | static unsigned char toHex[256]; | |
125 | ||
126 | struct i860_it { | |
127 | char *error; | |
128 | unsigned long opcode; | |
129 | struct nlist *nlistp; | |
130 | expressionS exp; | |
131 | int pcrel; | |
132 | enum expand_type expand; | |
133 | enum highlow_type highlow; | |
134 | enum reloc_type reloc; | |
135 | } the_insn; | |
136 | ||
137 | #ifdef __STDC__ | |
138 | static void print_insn(struct i860_it *insn); | |
139 | static int getExpression(char *str); | |
140 | #else | |
141 | static void print_insn(); | |
142 | static int getExpression(); | |
143 | #endif | |
144 | static char *expr_end; | |
145 | static char last_expand; /* error if expansion after branch */ | |
146 | ||
147 | enum dual | |
148 | { | |
149 | DUAL_OFF = 0, DUAL_ON, DUAL_DDOT, DUAL_ONDDOT, | |
150 | }; | |
151 | static enum dual dual_mode = DUAL_OFF; /* dual-instruction mode */ | |
152 | ||
153 | static void | |
154 | s_dual() /* floating point instructions have dual set */ | |
155 | { | |
156 | dual_mode = DUAL_ON; | |
157 | } | |
158 | ||
159 | static void | |
160 | s_enddual() /* floating point instructions have dual set */ | |
161 | { | |
162 | dual_mode = DUAL_OFF; | |
163 | } | |
164 | ||
165 | static int atmp = 31; /* temporary register for pseudo's */ | |
166 | ||
167 | static void | |
168 | s_atmp() | |
169 | { | |
170 | register int temp; | |
171 | if (strncmp(input_line_pointer, "sp", 2) == 0) { | |
172 | input_line_pointer += 2; | |
173 | atmp = 2; | |
174 | } | |
175 | else if (strncmp(input_line_pointer, "fp", 2) == 0) { | |
176 | input_line_pointer += 2; | |
177 | atmp = 3; | |
178 | } | |
179 | else if (strncmp(input_line_pointer, "r", 1) == 0) { | |
180 | input_line_pointer += 1; | |
181 | temp = get_absolute_expression(); | |
182 | if (temp >= 0 && temp <= 31) | |
183 | atmp = temp; | |
184 | else | |
185 | as_bad("Unknown temporary pseudo register"); | |
186 | } | |
187 | else { | |
188 | as_bad("Unknown temporary pseudo register"); | |
189 | } | |
190 | demand_empty_rest_of_line(); | |
191 | return; | |
192 | } | |
193 | ||
194 | /* This function is called once, at assembler startup time. It should | |
195 | set up all the tables, etc. that the MD part of the assembler will need. */ | |
196 | void | |
197 | md_begin() | |
198 | { | |
199 | register char *retval = NULL; | |
200 | int lose = 0; | |
201 | register unsigned int i = 0; | |
202 | ||
203 | op_hash = hash_new(); | |
204 | if (op_hash == NULL) | |
205 | as_fatal("Virtual memory exhausted"); | |
206 | ||
207 | while (i < NUMOPCODES) | |
208 | { | |
209 | const char *name = i860_opcodes[i].name; | |
210 | retval = hash_insert(op_hash, name, &i860_opcodes[i]); | |
211 | if(retval != NULL && *retval != '\0') | |
212 | { | |
213 | fprintf (stderr, "internal error: can't hash `%s': %s\n", | |
214 | i860_opcodes[i].name, retval); | |
215 | lose = 1; | |
216 | } | |
217 | do | |
218 | { | |
219 | if (i860_opcodes[i].match & i860_opcodes[i].lose) | |
220 | { | |
221 | fprintf (stderr, "internal error: losing opcode: `%s' \"%s\"\n", | |
222 | i860_opcodes[i].name, i860_opcodes[i].args); | |
223 | lose = 1; | |
224 | } | |
225 | ++i; | |
226 | } while (i < NUMOPCODES | |
227 | && !strcmp(i860_opcodes[i].name, name)); | |
228 | } | |
229 | ||
230 | if (lose) | |
231 | as_fatal("Broken assembler. No assembly attempted."); | |
232 | ||
233 | for (i = '0'; i < '8'; ++i) | |
234 | octal[i] = 1; | |
235 | for (i = '0'; i <= '9'; ++i) | |
236 | toHex[i] = i - '0'; | |
237 | for (i = 'a'; i <= 'f'; ++i) | |
238 | toHex[i] = i + 10 - 'a'; | |
239 | for (i = 'A'; i <= 'F'; ++i) | |
240 | toHex[i] = i + 10 - 'A'; | |
241 | } | |
242 | ||
243 | void | |
244 | md_end() | |
245 | { | |
246 | return; | |
247 | } | |
248 | ||
249 | void | |
250 | md_assemble(str) | |
251 | char *str; | |
252 | { | |
253 | char *toP; | |
254 | int rsd; | |
255 | int no_opcodes = 1; | |
256 | int i; | |
257 | struct i860_it pseudo[3]; | |
258 | ||
259 | assert(str); | |
260 | i860_ip(str); | |
261 | ||
262 | /* check for expandable flag to produce pseudo-instructions */ | |
263 | if (the_insn.expand != 0 && the_insn.highlow == NO_SPEC) { | |
264 | for (i = 0; i < 3; i++) | |
265 | pseudo[i] = the_insn; | |
266 | ||
267 | switch (the_insn.expand) { | |
268 | ||
269 | case E_DELAY: | |
270 | no_opcodes = 1; | |
271 | break; | |
272 | ||
273 | case E_MOV: | |
274 | if (the_insn.exp.X_add_symbol == NULL && | |
275 | the_insn.exp.X_subtract_symbol == NULL && | |
276 | (the_insn.exp.X_add_number < (1 << 15) && | |
277 | the_insn.exp.X_add_number >= -(1 << 15))) | |
278 | break; | |
279 | /* or l%const,r0,ireg_dest */ | |
280 | pseudo[0].opcode = (the_insn.opcode & 0x001f0000) | 0xe4000000; | |
281 | pseudo[0].highlow = PAIR; | |
282 | /* orh h%const,ireg_dest,ireg_dest */ | |
283 | pseudo[1].opcode = (the_insn.opcode & 0x03ffffff) | 0xec000000 | | |
284 | ((the_insn.opcode & 0x001f0000) << 5); | |
285 | pseudo[1].highlow = HIGH; | |
286 | no_opcodes = 2; | |
287 | break; | |
288 | ||
289 | case E_ADDR: | |
290 | if (the_insn.exp.X_add_symbol == NULL && | |
291 | the_insn.exp.X_subtract_symbol == NULL) | |
292 | break; | |
293 | /* orh ha%addr_expr,r0,r31 */ | |
294 | pseudo[0].opcode = 0xec000000 | (atmp<<16); | |
295 | pseudo[0].highlow = HIGHADJ; | |
296 | pseudo[0].reloc = LOW0; /* must overwrite */ | |
297 | /* l%addr_expr(r31),ireg_dest */ | |
298 | pseudo[1].opcode = (the_insn.opcode & ~0x003e0000) | (atmp << 21); | |
299 | pseudo[1].highlow = PAIR; | |
300 | no_opcodes = 2; | |
301 | break; | |
302 | ||
303 | case E_U32: /* 2nd version emulates Intel as, not doc. */ | |
304 | if (the_insn.exp.X_add_symbol == NULL && | |
305 | the_insn.exp.X_subtract_symbol == NULL && | |
306 | (the_insn.exp.X_add_number < (1 << 16) && | |
307 | the_insn.exp.X_add_number >= 0)) | |
308 | break; | |
309 | /* $(opcode)h h%const,ireg_src2,ireg_dest | |
310 | pseudo[0].opcode = (the_insn.opcode & 0xf3ffffff) | 0x0c000000; */ | |
311 | /* $(opcode)h h%const,ireg_src2,r31 */ | |
312 | pseudo[0].opcode = (the_insn.opcode & 0xf3e0ffff) | 0x0c000000 | | |
313 | (atmp << 16); | |
314 | pseudo[0].highlow = HIGH; | |
315 | /* $(opcode) l%const,ireg_dest,ireg_dest | |
316 | pseudo[1].opcode = (the_insn.opcode & 0xf01f0000) | 0x04000000 | | |
317 | ((the_insn.opcode & 0x001f0000) << 5); */ | |
318 | /* $(opcode) l%const,r31,ireg_dest */ | |
319 | pseudo[1].opcode = (the_insn.opcode & 0xf01f0000) | 0x04000000 | | |
320 | (atmp << 21); | |
321 | pseudo[1].highlow = PAIR; | |
322 | no_opcodes = 2; | |
323 | break; | |
324 | ||
325 | case E_AND: /* 2nd version emulates Intel as, not doc. */ | |
326 | if (the_insn.exp.X_add_symbol == NULL && | |
327 | the_insn.exp.X_subtract_symbol == NULL && | |
328 | (the_insn.exp.X_add_number < (1 << 16) && | |
329 | the_insn.exp.X_add_number >= 0)) | |
330 | break; | |
331 | /* andnot h%const,ireg_src2,ireg_dest | |
332 | pseudo[0].opcode = (the_insn.opcode & 0x03ffffff) | 0xd4000000; */ | |
333 | /* andnot h%const,ireg_src2,r31 */ | |
334 | pseudo[0].opcode = (the_insn.opcode & 0x03e0ffff) | 0xd4000000 | | |
335 | (atmp << 16); | |
336 | pseudo[0].highlow = HIGH; | |
337 | pseudo[0].exp.X_add_number = -1 - the_insn.exp.X_add_number; | |
338 | /* andnot l%const,ireg_dest,ireg_dest | |
339 | pseudo[1].opcode = (the_insn.opcode & 0x001f0000) | 0xd4000000 | | |
340 | ((the_insn.opcode & 0x001f0000) << 5); */ | |
341 | /* andnot l%const,r31,ireg_dest */ | |
342 | pseudo[1].opcode = (the_insn.opcode & 0x001f0000) | 0xd4000000 | | |
343 | (atmp << 21); | |
344 | pseudo[1].highlow = PAIR; | |
345 | pseudo[1].exp.X_add_number = -1 - the_insn.exp.X_add_number; | |
346 | no_opcodes = 2; | |
347 | break; | |
348 | ||
349 | case E_S32: | |
350 | if (the_insn.exp.X_add_symbol == NULL && | |
351 | the_insn.exp.X_subtract_symbol == NULL && | |
352 | (the_insn.exp.X_add_number < (1 << 15) && | |
353 | the_insn.exp.X_add_number >= -(1 << 15))) | |
354 | break; | |
355 | /* orh h%const,r0,r31 */ | |
356 | pseudo[0].opcode = 0xec000000 | (atmp << 16); | |
357 | pseudo[0].highlow = HIGH; | |
358 | /* or l%const,r31,r31 */ | |
359 | pseudo[1].opcode = 0xe4000000 | (atmp << 21) | (atmp << 16); | |
360 | pseudo[1].highlow = PAIR; | |
361 | /* r31,ireg_src2,ireg_dest */ | |
362 | pseudo[2].opcode = (the_insn.opcode & ~0x0400ffff) | (atmp << 11); | |
363 | pseudo[2].reloc = NO_RELOC; | |
364 | no_opcodes = 3; | |
365 | break; | |
366 | ||
367 | default: | |
368 | abort(); | |
369 | } | |
370 | ||
371 | the_insn = pseudo[0]; | |
372 | /* check for expanded opcode after branch or in dual */ | |
373 | if (no_opcodes > 1 && last_expand == 1) | |
374 | as_warn("Expanded opcode after delayed branch: `%s'", str); | |
375 | if (no_opcodes > 1 && dual_mode != DUAL_OFF) | |
376 | as_warn("Expanded opcode in dual mode: `%s'", str); | |
377 | } | |
378 | ||
379 | i = 0; | |
380 | do { /* always produce at least one opcode */ | |
381 | toP = frag_more(4); | |
382 | /* put out the opcode */ | |
383 | md_number_to_chars(toP, the_insn.opcode, 4); | |
384 | ||
385 | /* check for expanded opcode after branch or in dual */ | |
386 | last_expand = the_insn.pcrel; | |
387 | ||
388 | /* put out the symbol-dependent stuff */ | |
389 | if (the_insn.reloc != NO_RELOC) { | |
390 | fix_new( | |
391 | frag_now, /* which frag */ | |
392 | (toP - frag_now->fr_literal), /* where */ | |
393 | 4, /* size */ | |
394 | the_insn.exp.X_add_symbol, | |
395 | the_insn.exp.X_subtract_symbol, | |
396 | the_insn.exp.X_add_number, | |
397 | the_insn.pcrel, | |
398 | /* merge bit fields into one argument */ | |
399 | (int)(((the_insn.highlow & 0x3) << 4) | (the_insn.reloc & 0xf)) | |
400 | ); | |
401 | } | |
402 | the_insn = pseudo[++i]; | |
403 | } while (--no_opcodes > 0); | |
404 | ||
405 | } | |
406 | ||
407 | static void | |
408 | i860_ip(str) | |
409 | char *str; | |
410 | { | |
411 | char *s; | |
412 | const char *args; | |
413 | char c; | |
414 | unsigned long i; | |
415 | struct i860_opcode *insn; | |
416 | char *argsStart; | |
417 | unsigned long opcode; | |
418 | unsigned int mask; | |
419 | int match = 0; | |
420 | int comma = 0; | |
421 | ||
422 | ||
423 | for (s = str; islower(*s) || *s == '.' || *s == '3'; ++s) | |
424 | ; | |
425 | switch (*s) { | |
426 | ||
427 | case '\0': | |
428 | break; | |
429 | ||
430 | case ',': | |
431 | comma = 1; | |
432 | ||
433 | /*FALLTHROUGH*/ | |
434 | ||
435 | case ' ': | |
436 | *s++ = '\0'; | |
437 | break; | |
438 | ||
439 | default: | |
440 | as_bad("Unknown opcode: `%s'", str); | |
441 | exit(1); | |
442 | } | |
443 | ||
444 | if (strncmp(str, "d.", 2) == 0) { /* check for d. opcode prefix */ | |
445 | if (dual_mode == DUAL_ON) | |
446 | dual_mode = DUAL_ONDDOT; | |
447 | else | |
448 | dual_mode = DUAL_DDOT; | |
449 | str += 2; | |
450 | } | |
451 | ||
452 | if ((insn = (struct i860_opcode *) hash_find(op_hash, str)) == NULL) { | |
453 | if (dual_mode == DUAL_DDOT || dual_mode == DUAL_ONDDOT) | |
454 | str -= 2; | |
455 | as_bad("Unknown opcode: `%s'", str); | |
456 | return; | |
457 | } | |
458 | if (comma) { | |
459 | *--s = ','; | |
460 | } | |
461 | argsStart = s; | |
462 | for (;;) { | |
463 | opcode = insn->match; | |
464 | bzero(&the_insn, sizeof(the_insn)); | |
465 | the_insn.reloc = NO_RELOC; | |
466 | ||
467 | /* | |
468 | * Build the opcode, checking as we go to make | |
469 | * sure that the operands match | |
470 | */ | |
471 | for (args = insn->args; ; ++args) { | |
472 | switch (*args) { | |
473 | ||
474 | case '\0': /* end of args */ | |
475 | if (*s == '\0') { | |
476 | match = 1; | |
477 | } | |
478 | break; | |
479 | ||
480 | case '+': | |
481 | case '(': /* these must match exactly */ | |
482 | case ')': | |
483 | case ',': | |
484 | case ' ': | |
485 | if (*s++ == *args) | |
486 | continue; | |
487 | break; | |
488 | ||
489 | case '#': /* must be at least one digit */ | |
490 | if (isdigit(*s++)) { | |
491 | while (isdigit(*s)) { | |
492 | ++s; | |
493 | } | |
494 | continue; | |
495 | } | |
496 | break; | |
497 | ||
498 | case '1': /* next operand must be a register */ | |
499 | case '2': | |
500 | case 'd': | |
501 | switch (*s) { | |
502 | ||
503 | case 'f': /* frame pointer */ | |
504 | s++; | |
505 | if (*s++ == 'p') { | |
506 | mask = 0x3; | |
507 | break; | |
508 | } | |
509 | goto error; | |
510 | ||
511 | case 's': /* stack pointer */ | |
512 | s++; | |
513 | if (*s++ == 'p') { | |
514 | mask= 0x2; | |
515 | break; | |
516 | } | |
517 | goto error; | |
518 | ||
519 | case 'r': /* any register */ | |
520 | s++; | |
521 | if (!isdigit(c = *s++)) { | |
522 | goto error; | |
523 | } | |
524 | if (isdigit(*s)) { | |
525 | if ((c = 10 * (c - '0') + (*s++ - '0')) >= 32) { | |
526 | goto error; | |
527 | } | |
528 | } else { | |
529 | c -= '0'; | |
530 | } | |
531 | mask= c; | |
532 | break; | |
533 | ||
534 | default: /* not this opcode */ | |
535 | goto error; | |
536 | } | |
537 | /* | |
538 | * Got the register, now figure out where | |
539 | * it goes in the opcode. | |
540 | */ | |
541 | switch (*args) { | |
542 | ||
543 | case '1': | |
544 | opcode |= mask << 11; | |
545 | continue; | |
546 | ||
547 | case '2': | |
548 | opcode |= mask << 21; | |
549 | continue; | |
550 | ||
551 | case 'd': | |
552 | opcode |= mask << 16; | |
553 | continue; | |
554 | ||
555 | } | |
556 | break; | |
557 | ||
558 | case 'e': /* next operand is a floating point register */ | |
559 | case 'f': | |
560 | case 'g': | |
561 | if (*s++ == 'f' && isdigit(*s)) { | |
562 | mask = *s++; | |
563 | if (isdigit(*s)) { | |
564 | mask = 10 * (mask - '0') + (*s++ - '0'); | |
565 | if (mask >= 32) { | |
566 | break; | |
567 | } | |
568 | } else { | |
569 | mask -= '0'; | |
570 | } | |
571 | switch (*args) { | |
572 | ||
573 | case 'e': | |
574 | opcode |= mask << 11; | |
575 | continue; | |
576 | ||
577 | case 'f': | |
578 | opcode |= mask << 21; | |
579 | continue; | |
580 | ||
581 | case 'g': | |
582 | opcode |= mask << 16; | |
583 | if (dual_mode != DUAL_OFF) | |
584 | opcode |= (1 << 9); /* dual mode instruction */ | |
585 | if (dual_mode == DUAL_DDOT) | |
586 | dual_mode = DUAL_OFF; | |
587 | if (dual_mode == DUAL_ONDDOT) | |
588 | dual_mode = DUAL_ON; | |
589 | if ((opcode & (1 << 10)) && (mask == ((opcode >> 11) & 0x1f))) | |
590 | as_warn("Fsr1 equals fdest with Pipelining"); | |
591 | continue; | |
592 | } | |
593 | } | |
594 | break; | |
595 | ||
596 | case 'c': /* next operand must be a control register */ | |
597 | if (strncmp(s, "fir", 3) == 0) { | |
598 | opcode |= 0x0 << 21; | |
599 | s += 3; | |
600 | continue; | |
601 | } | |
602 | if (strncmp(s, "psr", 3) == 0) { | |
603 | opcode |= 0x1 << 21; | |
604 | s += 3; | |
605 | continue; | |
606 | } | |
607 | if (strncmp(s, "dirbase", 7) == 0) { | |
608 | opcode |= 0x2 << 21; | |
609 | s += 7; | |
610 | continue; | |
611 | } | |
612 | if (strncmp(s, "db", 2) == 0) { | |
613 | opcode |= 0x3 << 21; | |
614 | s += 2; | |
615 | continue; | |
616 | } | |
617 | if (strncmp(s, "fsr", 3) == 0) { | |
618 | opcode |= 0x4 << 21; | |
619 | s += 3; | |
620 | continue; | |
621 | } | |
622 | if (strncmp(s, "epsr", 4) == 0) { | |
623 | opcode |= 0x5 << 21; | |
624 | s += 4; | |
625 | continue; | |
626 | } | |
627 | break; | |
628 | ||
629 | case '5': /* 5 bit immediate in src1 */ | |
630 | bzero(&the_insn, sizeof(the_insn)); | |
631 | if ( !getExpression(s)) { | |
632 | s = expr_end; | |
633 | if (the_insn.exp.X_add_number & ~0x1f) | |
634 | as_bad("5-bit immediate too large"); | |
635 | opcode |= (the_insn.exp.X_add_number & 0x1f) << 11; | |
636 | bzero(&the_insn, sizeof(the_insn)); | |
637 | the_insn.reloc = NO_RELOC; | |
638 | continue; | |
639 | } | |
640 | break; | |
641 | ||
642 | case 'l': /* 26 bit immediate, relative branch */ | |
643 | the_insn.reloc = BRADDR; | |
644 | the_insn.pcrel = 1; | |
645 | goto immediate; | |
646 | ||
647 | case 's': /* 16 bit immediate, split relative branch */ | |
648 | /* upper 5 bits of offset in dest field */ | |
649 | the_insn.pcrel = 1; | |
650 | the_insn.reloc = SPLIT0; | |
651 | goto immediate; | |
652 | ||
653 | case 'S': /* 16 bit immediate, split (st), aligned */ | |
654 | if (opcode & (1 << 28)) | |
655 | if (opcode & 0x1) | |
656 | the_insn.reloc = SPLIT2; | |
657 | else | |
658 | the_insn.reloc = SPLIT1; | |
659 | else | |
660 | the_insn.reloc = SPLIT0; | |
661 | goto immediate; | |
662 | ||
663 | case 'I': /* 16 bit immediate, aligned */ | |
664 | if (opcode & (1 << 28)) | |
665 | if (opcode & 0x1) | |
666 | the_insn.reloc = LOW2; | |
667 | else | |
668 | the_insn.reloc = LOW1; | |
669 | else | |
670 | the_insn.reloc = LOW0; | |
671 | goto immediate; | |
672 | ||
673 | case 'i': /* 16 bit immediate */ | |
674 | the_insn.reloc = LOW0; | |
675 | ||
676 | /*FALLTHROUGH*/ | |
677 | ||
678 | immediate: | |
679 | if(*s==' ') | |
680 | s++; | |
681 | if (strncmp(s, "ha%", 3) == 0) { | |
682 | the_insn.highlow = HIGHADJ; | |
683 | s += 3; | |
684 | } else if (strncmp(s, "h%", 2) == 0) { | |
685 | the_insn.highlow = HIGH; | |
686 | s += 2; | |
687 | } else if (strncmp(s, "l%", 2) == 0) { | |
688 | the_insn.highlow = PAIR; | |
689 | s += 2; | |
690 | } | |
691 | the_insn.expand = insn->expand; | |
692 | ||
693 | /* Note that if the getExpression() fails, we will still have | |
694 | created U entries in the symbol table for the 'symbols' | |
695 | in the input string. Try not to create U symbols for | |
696 | registers, etc. */ | |
697 | ||
698 | if ( !getExpression(s)) { | |
699 | s = expr_end; | |
700 | continue; | |
701 | } | |
702 | break; | |
703 | ||
704 | default: | |
705 | abort(); | |
706 | } | |
707 | break; | |
708 | } | |
709 | error: | |
710 | if (match == 0) | |
711 | { | |
712 | /* Args don't match. */ | |
713 | if (&insn[1] - i860_opcodes < NUMOPCODES | |
714 | && !strcmp(insn->name, insn[1].name)) | |
715 | { | |
716 | ++insn; | |
717 | s = argsStart; | |
718 | continue; | |
719 | } | |
720 | else | |
721 | { | |
722 | as_bad("Illegal operands"); | |
723 | return; | |
724 | } | |
725 | } | |
726 | break; | |
727 | } | |
728 | ||
729 | the_insn.opcode = opcode; | |
730 | return; | |
731 | } | |
732 | ||
733 | static int | |
734 | getExpression(str) | |
735 | char *str; | |
736 | { | |
737 | char *save_in; | |
738 | segT seg; | |
739 | ||
740 | save_in = input_line_pointer; | |
741 | input_line_pointer = str; | |
742 | switch (seg = expression(&the_insn.exp)) { | |
743 | ||
744 | case SEG_ABSOLUTE: | |
745 | case SEG_TEXT: | |
746 | case SEG_DATA: | |
747 | case SEG_BSS: | |
748 | case SEG_UNKNOWN: | |
749 | case SEG_DIFFERENCE: | |
750 | case SEG_BIG: | |
751 | case SEG_ABSENT: | |
752 | break; | |
753 | ||
754 | default: | |
755 | the_insn.error = "bad segment"; | |
756 | expr_end = input_line_pointer; | |
757 | input_line_pointer=save_in; | |
758 | return 1; | |
759 | } | |
760 | expr_end = input_line_pointer; | |
761 | input_line_pointer = save_in; | |
762 | return 0; | |
763 | } | |
764 | ||
765 | ||
766 | /* | |
767 | This is identical to the md_atof in m68k.c. I think this is right, | |
768 | but I'm not sure. | |
769 | ||
770 | Turn a string in input_line_pointer into a floating point constant of type | |
771 | type, and store the appropriate bytes in *litP. The number of LITTLENUMS | |
772 | emitted is stored in *sizeP . An error message is returned, or NULL on OK. | |
773 | */ | |
774 | ||
775 | /* Equal to MAX_PRECISION in atof-ieee.c */ | |
776 | #define MAX_LITTLENUMS 6 | |
777 | ||
778 | char * | |
779 | md_atof(type,litP,sizeP) | |
780 | char type; | |
781 | char *litP; | |
782 | int *sizeP; | |
783 | { | |
784 | int prec; | |
785 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
786 | LITTLENUM_TYPE *wordP; | |
787 | char *t; | |
788 | char *atof_ieee(); | |
789 | ||
790 | switch(type) { | |
791 | ||
792 | case 'f': | |
793 | case 'F': | |
794 | case 's': | |
795 | case 'S': | |
796 | prec = 2; | |
797 | break; | |
798 | ||
799 | case 'd': | |
800 | case 'D': | |
801 | case 'r': | |
802 | case 'R': | |
803 | prec = 4; | |
804 | break; | |
805 | ||
806 | case 'x': | |
807 | case 'X': | |
808 | prec = 6; | |
809 | break; | |
810 | ||
811 | case 'p': | |
812 | case 'P': | |
813 | prec = 6; | |
814 | break; | |
815 | ||
816 | default: | |
817 | *sizeP=0; | |
818 | return "Bad call to MD_ATOF()"; | |
819 | } | |
820 | t=atof_ieee(input_line_pointer,type,words); | |
821 | if(t) | |
822 | input_line_pointer=t; | |
823 | *sizeP=prec * sizeof(LITTLENUM_TYPE); | |
824 | for(wordP=words;prec--;) { | |
825 | md_number_to_chars(litP,(long)(*wordP++),sizeof(LITTLENUM_TYPE)); | |
826 | litP+=sizeof(LITTLENUM_TYPE); | |
827 | } | |
828 | return ""; /* Someone should teach Dean about null pointers */ | |
829 | } | |
830 | ||
831 | /* | |
832 | * Write out big-endian. | |
833 | */ | |
834 | void | |
835 | md_number_to_chars(buf,val,n) | |
836 | char *buf; | |
837 | long val; | |
838 | int n; | |
839 | { | |
840 | switch(n) { | |
841 | ||
842 | case 4: | |
843 | *buf++ = val >> 24; | |
844 | *buf++ = val >> 16; | |
845 | case 2: | |
846 | *buf++ = val >> 8; | |
847 | case 1: | |
848 | *buf = val; | |
849 | break; | |
850 | ||
851 | default: | |
852 | abort(); | |
853 | } | |
854 | return; | |
855 | } | |
856 | ||
857 | void md_number_to_imm(buf,val,n, fixP) | |
858 | char *buf; | |
859 | long val; | |
860 | int n; | |
861 | fixS *fixP; | |
862 | { | |
863 | enum reloc_type reloc = fixP->fx_r_type & 0xf; | |
864 | enum highlow_type highlow = (fixP->fx_r_type >> 4) & 0x3; | |
865 | ||
866 | assert(buf); | |
867 | assert(n == 4); /* always on i860 */ | |
868 | ||
869 | switch(highlow) | |
870 | { | |
871 | ||
872 | case HIGHADJ: /* adjusts the high-order 16-bits */ | |
873 | if (val & (1 << 15)) | |
874 | val += (1 << 16); | |
875 | ||
876 | /*FALLTHROUGH*/ | |
877 | ||
878 | case HIGH: /* selects the high-order 16-bits */ | |
879 | val >>= 16; | |
880 | break; | |
881 | ||
882 | case PAIR: /* selects the low-order 16-bits */ | |
883 | val = val & 0xffff; | |
884 | break; | |
885 | ||
886 | default: | |
887 | break; | |
888 | } | |
889 | ||
890 | switch(reloc) | |
891 | { | |
892 | ||
893 | case BRADDR: /* br,call,bc,bc.t,bnc,bnc.t w/26-bit immediate */ | |
894 | if (fixP->fx_pcrel != 1) | |
895 | as_bad("26-bit branch w/o pc relative set: 0x%08x", val); | |
896 | val >>= 2; /* align pcrel offset, see manual */ | |
897 | ||
898 | if (val >= (1 << 25) || val < -(1 << 25)) /* check for overflow */ | |
899 | as_bad("26-bit branch offset overflow: 0x%08x", val); | |
900 | buf[0] = (buf[0] & 0xfc) | ((val >> 24) & 0x3); | |
901 | buf[1] = val >> 16; | |
902 | buf[2] = val >> 8; | |
903 | buf[3] = val; | |
904 | break; | |
905 | ||
906 | case SPLIT2: /* 16 bit immediate, 4-byte aligned */ | |
907 | if (val & 0x3) | |
908 | as_bad("16-bit immediate 4-byte alignment error: 0x%08x", val); | |
909 | val &= ~0x3; /* 4-byte align value */ | |
910 | /*FALLTHROUGH*/ | |
911 | case SPLIT1: /* 16 bit immediate, 2-byte aligned */ | |
912 | if (val & 0x1) | |
913 | as_bad("16-bit immediate 2-byte alignment error: 0x%08x", val); | |
914 | val &= ~0x1; /* 2-byte align value */ | |
915 | /*FALLTHROUGH*/ | |
916 | case SPLIT0: /* st,bla,bte,btne w/16-bit immediate */ | |
917 | if (fixP->fx_pcrel == 1) | |
918 | val >>= 2; /* align pcrel offset, see manual */ | |
919 | /* check for bounds */ | |
920 | if (highlow != PAIR && (val >= (1 << 16) || val < -(1 << 15))) | |
921 | as_bad("16-bit branch offset overflow: 0x%08x", val); | |
922 | buf[1] = (buf[1] & ~0x1f) | ((val >> 11) & 0x1f); | |
923 | buf[2] = (buf[2] & ~0x7) | ((val >> 8) & 0x7); | |
924 | buf[3] |= val; /* perserve bottom opcode bits */ | |
925 | break; | |
926 | ||
927 | case LOW4: /* fld,pfld,pst,flush 16-byte aligned */ | |
928 | if (val & 0xf) | |
929 | as_bad("16-bit immediate 16-byte alignment error: 0x%08x", val); | |
930 | val &= ~0xf; /* 16-byte align value */ | |
931 | /*FALLTHROUGH*/ | |
932 | case LOW3: /* fld,pfld,pst,flush 8-byte aligned */ | |
933 | if (val & 0x7) | |
934 | as_bad("16-bit immediate 8-byte alignment error: 0x%08x", val); | |
935 | val &= ~0x7; /* 8-byte align value */ | |
936 | /*FALLTHROUGH*/ | |
937 | case LOW2: /* 16 bit immediate, 4-byte aligned */ | |
938 | if (val & 0x3) | |
939 | as_bad("16-bit immediate 4-byte alignment error: 0x%08x", val); | |
940 | val &= ~0x3; /* 4-byte align value */ | |
941 | /*FALLTHROUGH*/ | |
942 | case LOW1: /* 16 bit immediate, 2-byte aligned */ | |
943 | if (val & 0x1) | |
944 | as_bad("16-bit immediate 2-byte alignment error: 0x%08x", val); | |
945 | val &= ~0x1; /* 2-byte align value */ | |
946 | /*FALLTHROUGH*/ | |
947 | case LOW0: /* 16 bit immediate, byte aligned */ | |
948 | /* check for bounds */ | |
949 | if (highlow != PAIR && (val >= (1 << 16) || val < -(1 << 15))) | |
950 | as_bad("16-bit immediate overflow: 0x%08x", val); | |
951 | buf[2] = val >> 8; | |
952 | buf[3] |= val; /* perserve bottom opcode bits */ | |
953 | break; | |
954 | ||
955 | case NO_RELOC: | |
956 | default: | |
957 | as_bad("bad relocation type: 0x%02x", reloc); | |
958 | break; | |
959 | } | |
960 | return; | |
961 | } | |
962 | ||
963 | /* should never be called for i860 */ | |
964 | void | |
965 | md_create_short_jump(ptr, from_addr, to_addr, frag, to_symbol) | |
966 | char *ptr; | |
967 | long from_addr, to_addr; | |
968 | fragS *frag; | |
969 | symbolS *to_symbol; | |
970 | { | |
971 | fprintf(stderr, "i860_create_short_jmp\n"); | |
972 | abort(); | |
973 | } | |
974 | ||
975 | /* should never be called for i860 */ | |
976 | void | |
977 | md_number_to_disp(buf,val,n) | |
978 | char *buf; | |
979 | long val; | |
980 | { | |
981 | fprintf(stderr, "md_number_to_disp\n"); | |
982 | abort(); | |
983 | } | |
984 | ||
985 | /* should never be called for i860 */ | |
986 | void | |
987 | md_number_to_field(buf,val,fix) | |
988 | char *buf; | |
989 | long val; | |
990 | void *fix; | |
991 | { | |
992 | fprintf(stderr, "i860_number_to_field\n"); | |
993 | abort(); | |
994 | } | |
995 | ||
996 | /* the bit-field entries in the relocation_info struct plays hell | |
997 | with the byte-order problems of cross-assembly. So as a hack, | |
998 | I added this mach. dependent ri twiddler. Ugly, but it gets | |
999 | you there. -KWK */ | |
1000 | /* on i860: first 4 bytes are normal unsigned long address, next three | |
1001 | bytes are index, most sig. byte first. Byte 7 is broken up with | |
1002 | bit 7 as pcrel, bit 6 as extern, and the lower six bits as | |
1003 | relocation type (highlow 5-4). Next 4 bytes are long addend. */ | |
1004 | /* Thanx and a tip of the hat to Michael Bloom, mb@ttidca.tti.com */ | |
1005 | void | |
1006 | md_ri_to_chars(ri_p, ri) | |
1007 | struct relocation_info *ri_p, ri; | |
1008 | { | |
1009 | #if 0 | |
1010 | unsigned char the_bytes[sizeof(*ri_p)]; | |
1011 | ||
1012 | /* this is easy */ | |
1013 | md_number_to_chars(the_bytes, ri.r_address, sizeof(ri.r_address)); | |
1014 | /* now the fun stuff */ | |
1015 | the_bytes[4] = (ri.r_index >> 16) & 0x0ff; | |
1016 | the_bytes[5] = (ri.r_index >> 8) & 0x0ff; | |
1017 | the_bytes[6] = ri.r_index & 0x0ff; | |
1018 | the_bytes[7] = ((ri.r_extern << 7) & 0x80) | (0 & 0x60) | (ri.r_type & 0x1F); | |
1019 | /* Also easy */ | |
1020 | md_number_to_chars(&the_bytes[8], ri.r_addend, sizeof(ri.r_addend)); | |
1021 | /* now put it back where you found it, Junior... */ | |
1022 | bcopy (the_bytes, (char *)ri_p, sizeof(*ri_p)); | |
1023 | #endif | |
1024 | } | |
1025 | ||
1026 | /* should never be called for i860 */ | |
1027 | void | |
1028 | md_convert_frag(fragP) | |
1029 | register fragS *fragP; | |
1030 | { | |
1031 | fprintf(stderr, "i860_convert_frag\n"); | |
1032 | abort(); | |
1033 | } | |
1034 | ||
1035 | /* should never be called for i860 */ | |
1036 | void | |
1037 | md_create_long_jump(ptr, from_addr, to_addr, frag, to_symbol) | |
1038 | char *ptr; | |
1039 | long from_addr, | |
1040 | to_addr; | |
1041 | fragS *frag; | |
1042 | symbolS *to_symbol; | |
1043 | { | |
1044 | fprintf(stderr, "i860_create_long_jump\n"); | |
1045 | abort(); | |
1046 | } | |
1047 | ||
1048 | /* should never be called for i860 */ | |
1049 | int | |
1050 | md_estimate_size_before_relax(fragP, segtype) | |
1051 | register fragS *fragP; | |
1052 | segT segtype; | |
1053 | { | |
1054 | fprintf(stderr, "i860_estimate_size_before_relax\n"); | |
1055 | abort(); | |
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | /* for debugging only, must match enum reloc_type */ | |
1060 | static char *Reloc[] = { | |
1061 | "NO_RELOC", | |
1062 | "BRADDR", | |
1063 | "LOW0", | |
1064 | "LOW1", | |
1065 | "LOW2", | |
1066 | "LOW3", | |
1067 | "LOW4", | |
1068 | "SPLIT0", | |
1069 | "SPLIT1", | |
1070 | "SPLIT2", | |
1071 | "RELOC_32", | |
1072 | }; | |
1073 | static char *Highlow[] = { | |
1074 | "NO_SPEC", | |
1075 | "PAIR", | |
1076 | "HIGH", | |
1077 | "HIGHADJ", | |
1078 | }; | |
1079 | static void | |
1080 | print_insn(insn) | |
1081 | struct i860_it *insn; | |
1082 | { | |
1083 | if (insn->error) { | |
1084 | fprintf(stderr, "ERROR: %s\n"); | |
1085 | } | |
1086 | fprintf(stderr, "opcode=0x%08x\t", insn->opcode); | |
1087 | fprintf(stderr, "expand=0x%08x\t", insn->expand); | |
1088 | fprintf(stderr, "reloc = %s\t", Reloc[insn->reloc]); | |
1089 | fprintf(stderr, "highlow = %s\n", Highlow[insn->highlow]); | |
1090 | fprintf(stderr, "exp = {\n"); | |
1091 | fprintf(stderr, "\t\tX_add_symbol = %s\n", | |
1092 | insn->exp.X_add_symbol ? | |
1093 | (S_GET_NAME(insn->exp.X_add_symbol) ? | |
1094 | S_GET_NAME(insn->exp.X_add_symbol) : "???") : "0"); | |
1095 | fprintf(stderr, "\t\tX_sub_symbol = %s\n", | |
1096 | insn->exp.X_subtract_symbol ? | |
1097 | (S_GET_NAME(insn->exp.X_subtract_symbol) ? | |
1098 | S_GET_NAME(insn->exp.X_subtract_symbol) : "???") : "0"); | |
1099 | fprintf(stderr, "\t\tX_add_number = %d\n", | |
1100 | insn->exp.X_add_number); | |
1101 | fprintf(stderr, "}\n"); | |
1102 | return; | |
1103 | } | |
1104 | ||
1105 | int | |
1106 | md_parse_option(argP,cntP,vecP) | |
1107 | char **argP; | |
1108 | int *cntP; | |
1109 | char ***vecP; | |
1110 | { | |
1111 | return 1; | |
1112 | } | |
1113 | ||
1114 | /* | |
1115 | * I860 relocations are completely different, so it needs | |
1116 | * this machine dependent routine to emit them. | |
1117 | */ | |
1118 | void | |
1119 | emit_machine_reloc(fixP, segment_address_in_file) | |
1120 | register fixS *fixP; | |
1121 | relax_addressT segment_address_in_file; | |
1122 | { | |
1123 | struct reloc_info_i860 ri; | |
1124 | register symbolS *symbolP; | |
1125 | extern char *next_object_file_charP; | |
1126 | long add_number; | |
1127 | ||
1128 | bzero((char *) &ri, sizeof(ri)); | |
1129 | for (; fixP; fixP = fixP->fx_next) { | |
1130 | ||
1131 | if (fixP->fx_r_type & ~0x3f) { | |
1132 | fprintf(stderr, "fixP->fx_r_type = %d\n", fixP->fx_r_type); | |
1133 | abort(); | |
1134 | } | |
1135 | ri.r_pcrel = fixP->fx_pcrel; | |
1136 | ri.r_type = fixP->fx_r_type; | |
1137 | ||
1138 | if ((symbolP = fixP->fx_addsy) != NULL) { | |
1139 | ri.r_address = fixP->fx_frag->fr_address + | |
1140 | fixP->fx_where - segment_address_in_file; | |
1141 | if ((symbolP->sy_type & N_TYPE) == N_UNDF) { | |
1142 | ri.r_extern = 1; | |
1143 | ri.r_symbolnum = symbolP->sy_number; | |
1144 | } else { | |
1145 | ri.r_extern = 0; | |
1146 | ri.r_symbolnum = symbolP->sy_type & N_TYPE; | |
1147 | } | |
1148 | if (symbolP && symbolP->sy_frag) { | |
1149 | ri.r_addend = symbolP->sy_frag->fr_address; | |
1150 | } | |
1151 | ri.r_type = fixP->fx_r_type; | |
1152 | if (fixP->fx_pcrel) { | |
1153 | /* preserve actual offset vs. pc + 4 */ | |
1154 | ri.r_addend -= (ri.r_address + 4); | |
1155 | } else { | |
1156 | ri.r_addend = fixP->fx_addnumber; | |
1157 | } | |
1158 | ||
1159 | md_ri_to_chars((char *) &ri, ri); | |
1160 | append(&next_object_file_charP, (char *)& ri, sizeof(ri)); | |
1161 | } | |
1162 | } | |
1163 | return; | |
1164 | } | |
1165 | ||
1166 | /* Parse an operand that is machine-specific. | |
1167 | We just return without modifying the expression if we have nothing | |
1168 | to do. */ | |
1169 | ||
1170 | /* ARGSUSED */ | |
1171 | void | |
1172 | md_operand (expressionP) | |
1173 | expressionS *expressionP; | |
1174 | { | |
1175 | } | |
1176 | ||
1177 | /* We have no need to default values of symbols. */ | |
1178 | ||
1179 | /* ARGSUSED */ | |
1180 | symbolS * | |
1181 | md_undefined_symbol (name) | |
1182 | char *name; | |
1183 | { | |
1184 | return 0; | |
1185 | } | |
1186 | ||
1187 | /* Round up a section size to the appropriate boundary. */ | |
1188 | long | |
1189 | md_section_align (segment, size) | |
1190 | segT segment; | |
1191 | long size; | |
1192 | { | |
1193 | return size; /* Byte alignment is fine */ | |
1194 | } | |
1195 | ||
1196 | /* Exactly what point is a PC-relative offset relative TO? | |
1197 | On the i860, they're relative to the address of the offset, plus | |
1198 | its size. (??? Is this right? FIXME-SOON!) */ | |
1199 | long | |
1200 | md_pcrel_from (fixP) | |
1201 | fixS *fixP; | |
1202 | { | |
1203 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
1204 | } | |
1205 | ||
1206 | void | |
1207 | md_apply_fix(fixP, val) | |
1208 | fixS *fixP; | |
1209 | long val; | |
1210 | { | |
1211 | char *place = fixP->fx_where + fixP->fx_frag->fr_literal; | |
1212 | ||
1213 | if (!fixP->fx_bit_fixP) { | |
1214 | ||
1215 | switch (fixP->fx_im_disp) { | |
1216 | case 0: | |
1217 | fixP->fx_addnumber = val; | |
1218 | md_number_to_imm(place, val, fixP->fx_size, fixP); | |
1219 | break; | |
1220 | case 1: | |
1221 | md_number_to_disp (place, | |
1222 | fixP->fx_pcrel ? val+fixP->fx_pcrel_adjust:val, | |
1223 | fixP->fx_size); | |
1224 | break; | |
1225 | case 2: /* fix requested for .long .word etc */ | |
1226 | md_number_to_chars (place, val, fixP->fx_size); | |
1227 | break; | |
1228 | default: | |
1229 | as_fatal("Internal error in md_apply_fix() in file \"%s\"", __FILE__); | |
1230 | } /* OVE: maybe one ought to put _imm _disp _chars in one md-func */ | |
1231 | } else { | |
1232 | md_number_to_field (place, val, fixP->fx_bit_fixP); | |
1233 | } | |
1234 | ||
1235 | return; | |
1236 | } /* md_apply_fix() */ | |
1237 | ||
1238 | /* | |
1239 | * $Log$ | |
1240 | * Revision 1.1 1991/04/04 18:16:48 rich | |
1241 | * Initial revision | |
1242 | * | |
1243 | * Revision 1.2 1991/03/30 17:11:32 rich | |
1244 | * Updated md_create_short_jump calling protocol. | |
1245 | * | |
1246 | * | |
1247 | */ | |
1248 | ||
1249 | /* | |
1250 | * Local Variables: | |
1251 | * fill-column: 131 | |
1252 | * comment-column: 0 | |
1253 | */ | |
1254 | ||
1255 | /* end of i860.c */ |