Commit | Line | Data |
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252b5132 | 1 | /* tc-z8k.c -- Assemble code for the Zilog Z800n |
c0fecd35 AM |
2 | Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 99, 2000 |
3 | Free Software Foundation. | |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
22 | /* | |
23 | Written By Steve Chamberlain | |
24 | sac@cygnus.com | |
25 | */ | |
26 | #define DEFINE_TABLE | |
27 | #include <stdio.h> | |
28 | ||
29 | #include "opcodes/z8k-opc.h" | |
30 | ||
31 | #include "as.h" | |
32 | #include "bfd.h" | |
33 | #include <ctype.h> | |
34 | ||
63a0b638 AM |
35 | const char comment_chars[] = "!"; |
36 | const char line_comment_chars[] = "#"; | |
37 | const char line_separator_chars[] = ";"; | |
252b5132 RH |
38 | |
39 | extern int machine; | |
40 | extern int coff_flags; | |
41 | int segmented_mode; | |
42 | const int md_reloc_size; | |
43 | ||
44 | /* This table describes all the machine specific pseudo-ops the assembler | |
45 | has to support. The fields are: | |
46 | pseudo-op name without dot | |
47 | function to call to execute this pseudo-op | |
48 | Integer arg to pass to the function | |
49 | */ | |
50 | ||
51 | void cons (); | |
52 | ||
53 | void | |
54 | s_segm () | |
55 | { | |
56 | segmented_mode = 1; | |
57 | machine = bfd_mach_z8001; | |
58 | coff_flags = F_Z8001; | |
59 | } | |
60 | ||
61 | void | |
62 | s_unseg () | |
63 | { | |
64 | segmented_mode = 0; | |
65 | machine = bfd_mach_z8002; | |
66 | coff_flags = F_Z8002; | |
67 | } | |
68 | ||
69 | static | |
70 | void | |
71 | even () | |
72 | { | |
73 | frag_align (1, 0, 0); | |
74 | record_alignment (now_seg, 1); | |
75 | } | |
76 | ||
77 | void obj_coff_section (); | |
78 | ||
79 | int | |
80 | tohex (c) | |
81 | int c; | |
82 | { | |
83 | if (isdigit (c)) | |
84 | return c - '0'; | |
85 | if (islower (c)) | |
86 | return c - 'a' + 10; | |
87 | return c - 'A' + 10; | |
88 | } | |
89 | ||
90 | void | |
91 | sval () | |
92 | { | |
93 | ||
94 | SKIP_WHITESPACE (); | |
95 | if (*input_line_pointer == '\'') | |
96 | { | |
97 | int c; | |
98 | input_line_pointer++; | |
99 | c = *input_line_pointer++; | |
100 | while (c != '\'') | |
101 | { | |
102 | if (c == '%') | |
103 | { | |
104 | c = (tohex (input_line_pointer[0]) << 4) | |
105 | | tohex (input_line_pointer[1]); | |
106 | input_line_pointer += 2; | |
107 | } | |
108 | FRAG_APPEND_1_CHAR (c); | |
109 | c = *input_line_pointer++; | |
110 | } | |
111 | demand_empty_rest_of_line (); | |
112 | } | |
113 | ||
114 | } | |
115 | const pseudo_typeS md_pseudo_table[] = | |
116 | { | |
117 | {"int", cons, 2}, | |
118 | {"data.b", cons, 1}, | |
119 | {"data.w", cons, 2}, | |
120 | {"data.l", cons, 4}, | |
121 | {"form", listing_psize, 0}, | |
122 | {"heading", listing_title, 0}, | |
123 | {"import", s_ignore, 0}, | |
124 | {"page", listing_eject, 0}, | |
125 | {"program", s_ignore, 0}, | |
126 | {"z8001", s_segm, 0}, | |
127 | {"z8002", s_unseg, 0}, | |
128 | ||
129 | ||
130 | {"segm", s_segm, 0}, | |
131 | {"unsegm", s_unseg, 0}, | |
132 | {"unseg", s_unseg, 0}, | |
133 | {"name", s_app_file, 0}, | |
134 | {"global", s_globl, 0}, | |
135 | {"wval", cons, 2}, | |
136 | {"lval", cons, 4}, | |
137 | {"bval", cons, 1}, | |
138 | {"sval", sval, 0}, | |
139 | {"rsect", obj_coff_section, 0}, | |
140 | {"sect", obj_coff_section, 0}, | |
141 | {"block", s_space, 0}, | |
142 | {"even", even, 0}, | |
143 | {0, 0, 0} | |
144 | }; | |
145 | ||
146 | const char EXP_CHARS[] = "eE"; | |
147 | ||
148 | /* Chars that mean this number is a floating point constant */ | |
149 | /* As in 0f12.456 */ | |
150 | /* or 0d1.2345e12 */ | |
151 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
152 | ||
153 | static struct hash_control *opcode_hash_control; /* Opcode mnemonics */ | |
154 | ||
155 | void | |
156 | md_begin () | |
157 | { | |
158 | opcode_entry_type *opcode; | |
159 | char *prev_name = ""; | |
160 | int idx = 0; | |
161 | ||
162 | opcode_hash_control = hash_new (); | |
163 | ||
164 | for (opcode = z8k_table; opcode->name; opcode++) | |
165 | { | |
166 | /* Only enter unique codes into the table */ | |
167 | char *src = opcode->name; | |
168 | ||
169 | if (strcmp (opcode->name, prev_name)) | |
170 | { | |
171 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
172 | idx++; | |
173 | } | |
174 | opcode->idx = idx; | |
175 | prev_name = opcode->name; | |
176 | } | |
177 | ||
178 | /* default to z8002 */ | |
179 | s_unseg (); | |
180 | ||
181 | /* insert the pseudo ops too */ | |
182 | for (idx = 0; md_pseudo_table[idx].poc_name; idx++) | |
183 | { | |
184 | opcode_entry_type *fake_opcode; | |
185 | fake_opcode = (opcode_entry_type *) malloc (sizeof (opcode_entry_type)); | |
186 | fake_opcode->name = md_pseudo_table[idx].poc_name, | |
187 | fake_opcode->func = (void *) (md_pseudo_table + idx); | |
188 | fake_opcode->opcode = 250; | |
189 | hash_insert (opcode_hash_control, fake_opcode->name, fake_opcode); | |
190 | } | |
191 | ||
192 | linkrelax = 1; | |
193 | } | |
194 | ||
195 | struct z8k_exp | |
196 | { | |
197 | char *e_beg; | |
198 | char *e_end; | |
199 | expressionS e_exp; | |
200 | }; | |
201 | typedef struct z8k_op | |
202 | { | |
203 | char regsize; /* 'b','w','r','q' */ | |
204 | unsigned int reg; /* 0..15 */ | |
205 | ||
206 | int mode; | |
207 | ||
208 | unsigned int x_reg; /* any other register associated with the mode */ | |
209 | expressionS exp; /* any expression */ | |
210 | } | |
211 | ||
212 | op_type; | |
213 | ||
214 | static expressionS *da_operand; | |
215 | static expressionS *imm_operand; | |
216 | ||
217 | int reg[16]; | |
218 | int the_cc; | |
219 | int the_ctrl; | |
220 | int the_flags; | |
221 | int the_interrupt; | |
222 | ||
223 | char * | |
c0fecd35 AM |
224 | whatreg (reg, src) |
225 | int *reg; | |
226 | char *src; | |
252b5132 RH |
227 | { |
228 | if (isdigit (src[1])) | |
229 | { | |
230 | *reg = (src[0] - '0') * 10 + src[1] - '0'; | |
231 | return src + 2; | |
232 | } | |
233 | else | |
234 | { | |
235 | *reg = (src[0] - '0'); | |
236 | return src + 1; | |
237 | } | |
238 | } | |
239 | ||
240 | /* | |
241 | parse operands | |
242 | ||
243 | rh0-rh7, rl0-rl7 | |
244 | r0-r15 | |
245 | rr0-rr14 | |
246 | rq0--rq12 | |
247 | WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp | |
248 | r0l,r0h,..r7l,r7h | |
249 | @WREG | |
250 | @WREG+ | |
251 | @-WREG | |
252 | #const | |
253 | ||
254 | */ | |
255 | ||
256 | /* try and parse a reg name, returns number of chars consumed */ | |
257 | char * | |
c0fecd35 AM |
258 | parse_reg (src, mode, reg) |
259 | char *src; | |
260 | int *mode; | |
261 | unsigned int *reg; | |
252b5132 RH |
262 | { |
263 | char *res = 0; | |
264 | char regno; | |
265 | ||
266 | if (src[0] == 's' && src[1] == 'p') | |
267 | { | |
268 | if (segmented_mode) | |
269 | { | |
270 | *mode = CLASS_REG_LONG; | |
271 | *reg = 14; | |
272 | } | |
273 | else | |
274 | { | |
275 | *mode = CLASS_REG_WORD; | |
276 | *reg = 15; | |
277 | } | |
278 | return src + 2; | |
279 | } | |
280 | if (src[0] == 'r') | |
281 | { | |
282 | if (src[1] == 'r') | |
283 | { | |
284 | *mode = CLASS_REG_LONG; | |
285 | res = whatreg (reg, src + 2); | |
286 | regno = *reg; | |
287 | if (regno > 14) | |
288 | as_warn (_("register rr%d, out of range."),regno); | |
289 | } | |
290 | else if (src[1] == 'h') | |
291 | { | |
292 | *mode = CLASS_REG_BYTE; | |
293 | res = whatreg (reg, src + 2); | |
294 | regno = *reg; | |
295 | if (regno > 7) | |
296 | as_warn (_("register rh%d, out of range."),regno); | |
297 | } | |
298 | else if (src[1] == 'l') | |
299 | { | |
300 | *mode = CLASS_REG_BYTE; | |
301 | res = whatreg (reg, src + 2); | |
302 | regno = *reg; | |
303 | if (regno > 7) | |
304 | as_warn (_("register rl%d, out of range."),regno); | |
305 | *reg += 8; | |
306 | } | |
307 | else if (src[1] == 'q') | |
308 | { | |
309 | *mode = CLASS_REG_QUAD; | |
310 | res = whatreg (reg, src + 2); | |
311 | regno = *reg; | |
312 | if (regno > 12) | |
313 | as_warn (_("register rq%d, out of range."),regno); | |
314 | } | |
315 | else | |
316 | { | |
317 | *mode = CLASS_REG_WORD; | |
318 | res = whatreg (reg, src + 1); | |
319 | regno = *reg; | |
320 | if (regno > 15) | |
321 | as_warn (_("register r%d, out of range."),regno); | |
322 | } | |
323 | } | |
324 | return res; | |
325 | ||
326 | } | |
327 | ||
328 | char * | |
c0fecd35 AM |
329 | parse_exp (s, op) |
330 | char *s; | |
331 | expressionS *op; | |
252b5132 RH |
332 | { |
333 | char *save = input_line_pointer; | |
334 | char *new; | |
335 | ||
336 | input_line_pointer = s; | |
337 | expression (op); | |
338 | if (op->X_op == O_absent) | |
339 | as_bad (_("missing operand")); | |
340 | new = input_line_pointer; | |
341 | input_line_pointer = save; | |
342 | return new; | |
343 | } | |
344 | ||
345 | /* The many forms of operand: | |
346 | ||
347 | <rb> | |
348 | <r> | |
349 | <rr> | |
350 | <rq> | |
351 | @r | |
352 | #exp | |
353 | exp | |
354 | exp(r) | |
355 | r(#exp) | |
356 | r(r) | |
357 | ||
358 | ||
359 | ||
360 | */ | |
361 | ||
362 | static | |
363 | char * | |
c0fecd35 AM |
364 | checkfor (ptr, what) |
365 | char *ptr; | |
366 | char what; | |
252b5132 RH |
367 | { |
368 | if (*ptr == what) | |
369 | ptr++; | |
370 | else | |
371 | { | |
372 | as_bad (_("expected %c"), what); | |
373 | } | |
374 | return ptr; | |
375 | } | |
376 | ||
377 | /* Make sure the mode supplied is the size of a word */ | |
378 | static void | |
c0fecd35 AM |
379 | regword (mode, string) |
380 | int mode; | |
381 | char *string; | |
252b5132 RH |
382 | { |
383 | int ok; | |
384 | ||
385 | ok = CLASS_REG_WORD; | |
386 | if (ok != mode) | |
387 | { | |
388 | as_bad (_("register is wrong size for a word %s"), string); | |
389 | } | |
390 | } | |
391 | ||
392 | /* Make sure the mode supplied is the size of an address */ | |
393 | static void | |
c0fecd35 AM |
394 | regaddr (mode, string) |
395 | int mode; | |
396 | char *string; | |
252b5132 RH |
397 | { |
398 | int ok; | |
399 | ||
400 | ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD; | |
401 | if (ok != mode) | |
402 | { | |
403 | as_bad (_("register is wrong size for address %s"), string); | |
404 | } | |
405 | } | |
406 | ||
407 | struct ctrl_names | |
408 | { | |
409 | int value; | |
410 | char *name; | |
411 | }; | |
412 | ||
413 | struct ctrl_names ctrl_table[] = | |
414 | { | |
415 | 0x2, "fcw", | |
416 | 0X3, "refresh", | |
417 | 0x4, "psapseg", | |
418 | 0x5, "psapoff", | |
419 | 0x5, "psap", | |
420 | 0x6, "nspseg", | |
421 | 0x7, "nspoff", | |
422 | 0x7, "nsp", | |
423 | 0, 0 | |
424 | }; | |
425 | ||
426 | static void | |
c0fecd35 AM |
427 | get_ctrl_operand (ptr, mode, dst) |
428 | char **ptr; | |
429 | struct z8k_op *mode; | |
430 | unsigned int dst; | |
252b5132 RH |
431 | { |
432 | char *src = *ptr; | |
433 | int r; | |
434 | int i; | |
435 | ||
436 | while (*src == ' ') | |
437 | src++; | |
438 | ||
439 | mode->mode = CLASS_CTRL; | |
440 | for (i = 0; ctrl_table[i].name; i++) | |
441 | { | |
442 | int j; | |
443 | ||
444 | for (j = 0; ctrl_table[i].name[j]; j++) | |
445 | { | |
446 | if (ctrl_table[i].name[j] != src[j]) | |
447 | goto fail; | |
448 | } | |
449 | the_ctrl = ctrl_table[i].value; | |
450 | *ptr = src + j; | |
451 | return; | |
452 | fail:; | |
453 | } | |
454 | the_ctrl = 0; | |
455 | return; | |
456 | } | |
457 | ||
458 | struct flag_names | |
459 | { | |
460 | int value; | |
461 | char *name; | |
462 | ||
463 | }; | |
464 | ||
465 | struct flag_names flag_table[] = | |
466 | { | |
467 | 0x1, "p", | |
468 | 0x1, "v", | |
469 | 0x2, "s", | |
470 | 0x4, "z", | |
471 | 0x8, "c", | |
472 | 0x0, "+", | |
473 | 0, 0 | |
474 | }; | |
475 | ||
476 | static void | |
c0fecd35 AM |
477 | get_flags_operand (ptr, mode, dst) |
478 | char **ptr; | |
479 | struct z8k_op *mode; | |
480 | unsigned int dst; | |
252b5132 RH |
481 | { |
482 | char *src = *ptr; | |
483 | int r; | |
484 | int i; | |
485 | int j; | |
486 | ||
487 | while (*src == ' ') | |
488 | src++; | |
489 | ||
490 | mode->mode = CLASS_FLAGS; | |
491 | the_flags = 0; | |
492 | for (j = 0; j <= 9; j++) | |
493 | { | |
494 | if (!src[j]) | |
495 | goto done; | |
496 | for (i = 0; flag_table[i].name; i++) | |
497 | { | |
498 | if (flag_table[i].name[0] == src[j]) | |
499 | { | |
500 | the_flags = the_flags | flag_table[i].value; | |
501 | goto match; | |
502 | } | |
503 | } | |
504 | goto done; | |
505 | match: | |
506 | ; | |
507 | } | |
508 | done: | |
509 | *ptr = src + j; | |
510 | return; | |
511 | } | |
512 | ||
513 | ||
514 | struct interrupt_names | |
515 | { | |
516 | int value; | |
517 | char *name; | |
518 | ||
519 | }; | |
520 | ||
521 | struct interrupt_names intr_table[] = | |
522 | { | |
523 | 0x1, "nvi", | |
524 | 0x2, "vi", | |
525 | 0x3, "both", | |
526 | 0x3, "all", | |
527 | 0, 0 | |
528 | }; | |
529 | ||
530 | static void | |
c0fecd35 AM |
531 | get_interrupt_operand (ptr, mode, dst) |
532 | char **ptr; | |
533 | struct z8k_op *mode; | |
534 | unsigned int dst; | |
252b5132 RH |
535 | { |
536 | char *src = *ptr; | |
537 | int r; | |
538 | int i; | |
539 | ||
540 | while (*src == ' ') | |
541 | src++; | |
542 | ||
543 | mode->mode = CLASS_IMM; | |
544 | for (i = 0; intr_table[i].name; i++) | |
545 | { | |
546 | int j; | |
547 | ||
548 | for (j = 0; intr_table[i].name[j]; j++) | |
549 | { | |
550 | if (intr_table[i].name[j] != src[j]) | |
551 | goto fail; | |
552 | } | |
553 | the_interrupt = intr_table[i].value; | |
554 | *ptr = src + j; | |
555 | return; | |
556 | fail:; | |
557 | } | |
558 | the_interrupt = 0x0; | |
559 | return; | |
560 | } | |
561 | ||
562 | struct cc_names | |
563 | { | |
564 | int value; | |
565 | char *name; | |
566 | ||
567 | }; | |
568 | ||
569 | struct cc_names table[] = | |
570 | { | |
571 | 0x0, "f", | |
572 | 0x1, "lt", | |
573 | 0x2, "le", | |
574 | 0x3, "ule", | |
575 | 0x4, "ov", | |
576 | 0x4, "pe", | |
577 | 0x5, "mi", | |
578 | 0x6, "eq", | |
579 | 0x6, "z", | |
580 | 0x7, "c", | |
581 | 0x7, "ult", | |
582 | 0x8, "t", | |
583 | 0x9, "ge", | |
584 | 0xa, "gt", | |
585 | 0xb, "ugt", | |
586 | 0xc, "nov", | |
587 | 0xc, "po", | |
588 | 0xd, "pl", | |
589 | 0xe, "ne", | |
590 | 0xe, "nz", | |
591 | 0xf, "nc", | |
592 | 0xf, "uge", | |
593 | 0, 0 | |
594 | }; | |
595 | ||
596 | static void | |
c0fecd35 AM |
597 | get_cc_operand (ptr, mode, dst) |
598 | char **ptr; | |
599 | struct z8k_op *mode; | |
600 | unsigned int dst; | |
252b5132 RH |
601 | { |
602 | char *src = *ptr; | |
603 | int r; | |
604 | int i; | |
605 | ||
606 | while (*src == ' ') | |
607 | src++; | |
608 | ||
609 | mode->mode = CLASS_CC; | |
610 | for (i = 0; table[i].name; i++) | |
611 | { | |
612 | int j; | |
613 | ||
614 | for (j = 0; table[i].name[j]; j++) | |
615 | { | |
616 | if (table[i].name[j] != src[j]) | |
617 | goto fail; | |
618 | } | |
619 | the_cc = table[i].value; | |
620 | *ptr = src + j; | |
621 | return; | |
622 | fail:; | |
623 | } | |
624 | the_cc = 0x8; | |
625 | } | |
626 | ||
627 | static void | |
628 | get_operand (ptr, mode, dst) | |
629 | char **ptr; | |
630 | struct z8k_op *mode; | |
631 | unsigned int dst; | |
632 | { | |
633 | char *src = *ptr; | |
634 | char *end; | |
635 | unsigned int num; | |
636 | unsigned int len; | |
637 | unsigned int size; | |
638 | ||
639 | mode->mode = 0; | |
640 | ||
641 | while (*src == ' ') | |
642 | src++; | |
643 | if (*src == '#') | |
644 | { | |
645 | mode->mode = CLASS_IMM; | |
646 | imm_operand = &(mode->exp); | |
647 | src = parse_exp (src + 1, &(mode->exp)); | |
648 | } | |
649 | else if (*src == '@') | |
650 | { | |
651 | int d; | |
652 | ||
653 | mode->mode = CLASS_IR; | |
654 | src = parse_reg (src + 1, &d, &mode->reg); | |
655 | } | |
656 | else | |
657 | { | |
658 | int regn; | |
659 | ||
660 | end = parse_reg (src, &mode->mode, ®n); | |
661 | ||
662 | if (end) | |
663 | { | |
664 | int nw, nr; | |
665 | ||
666 | src = end; | |
667 | if (*src == '(') | |
668 | { | |
669 | src++; | |
670 | end = parse_reg (src, &nw, &nr); | |
671 | if (end) | |
672 | { | |
673 | /* Got Ra(Rb) */ | |
674 | src = end; | |
675 | ||
676 | if (*src != ')') | |
677 | { | |
678 | as_bad (_("Missing ) in ra(rb)")); | |
679 | } | |
680 | else | |
681 | { | |
682 | src++; | |
683 | } | |
684 | ||
685 | regaddr (mode->mode, "ra(rb) ra"); | |
686 | /* regword (mode->mode, "ra(rb) rb");*/ | |
687 | mode->mode = CLASS_BX; | |
688 | mode->reg = regn; | |
689 | mode->x_reg = nr; | |
690 | reg[ARG_RX] = nr; | |
691 | } | |
692 | else | |
693 | { | |
694 | /* Got Ra(disp) */ | |
695 | if (*src == '#') | |
696 | src++; | |
697 | src = parse_exp (src, &(mode->exp)); | |
698 | src = checkfor (src, ')'); | |
699 | mode->mode = CLASS_BA; | |
700 | mode->reg = regn; | |
701 | mode->x_reg = 0; | |
702 | imm_operand = &(mode->exp); | |
703 | } | |
704 | } | |
705 | else | |
706 | { | |
707 | mode->reg = regn; | |
708 | mode->x_reg = 0; | |
709 | } | |
710 | } | |
711 | else | |
712 | { | |
713 | /* No initial reg */ | |
714 | src = parse_exp (src, &(mode->exp)); | |
715 | if (*src == '(') | |
716 | { | |
717 | src++; | |
718 | end = parse_reg (src, &(mode->mode), ®n); | |
719 | regword (mode->mode, "addr(Ra) ra"); | |
720 | mode->mode = CLASS_X; | |
721 | mode->reg = regn; | |
722 | mode->x_reg = 0; | |
723 | da_operand = &(mode->exp); | |
724 | src = checkfor (end, ')'); | |
725 | } | |
726 | else | |
727 | { | |
728 | /* Just an address */ | |
729 | mode->mode = CLASS_DA; | |
730 | mode->reg = 0; | |
731 | mode->x_reg = 0; | |
732 | da_operand = &(mode->exp); | |
733 | } | |
734 | } | |
735 | } | |
736 | *ptr = src; | |
737 | } | |
738 | ||
739 | static | |
740 | char * | |
741 | get_operands (opcode, op_end, operand) | |
742 | opcode_entry_type *opcode; | |
743 | char *op_end; | |
744 | op_type *operand; | |
745 | { | |
746 | char *ptr = op_end; | |
747 | char *savptr; | |
748 | switch (opcode->noperands) | |
749 | { | |
750 | case 0: | |
751 | operand[0].mode = 0; | |
752 | operand[1].mode = 0; | |
753 | break; | |
754 | ||
755 | case 1: | |
756 | ptr++; | |
757 | if (opcode->arg_info[0] == CLASS_CC) | |
758 | { | |
759 | get_cc_operand (&ptr, operand + 0, 0); | |
760 | } | |
761 | else if (opcode->arg_info[0] == CLASS_FLAGS) | |
762 | { | |
763 | get_flags_operand (&ptr, operand + 0, 0); | |
764 | } | |
765 | else if (opcode->arg_info[0] == (CLASS_IMM +(ARG_IMM2))) | |
766 | { | |
767 | get_interrupt_operand (&ptr, operand + 0, 0); | |
768 | } | |
769 | else | |
770 | { | |
771 | get_operand (&ptr, operand + 0, 0); | |
772 | } | |
773 | operand[1].mode = 0; | |
774 | break; | |
775 | ||
776 | case 2: | |
777 | ptr++; | |
778 | savptr = ptr; | |
779 | if (opcode->arg_info[0] == CLASS_CC) | |
780 | { | |
781 | get_cc_operand (&ptr, operand + 0, 0); | |
782 | } | |
783 | else if (opcode->arg_info[0] == CLASS_CTRL) | |
784 | { | |
785 | get_ctrl_operand (&ptr, operand + 0, 0); | |
786 | if (the_ctrl == 0) | |
787 | { | |
788 | ptr = savptr; | |
789 | get_operand (&ptr, operand + 0, 0); | |
790 | if (ptr == 0) | |
791 | return; | |
792 | if (*ptr == ',') | |
793 | ptr++; | |
794 | get_ctrl_operand (&ptr, operand + 1, 1); | |
795 | return ptr; | |
796 | } | |
797 | } | |
798 | else | |
799 | { | |
800 | get_operand (&ptr, operand + 0, 0); | |
801 | } | |
802 | if (ptr == 0) | |
803 | return; | |
804 | if (*ptr == ',') | |
805 | ptr++; | |
806 | get_operand (&ptr, operand + 1, 1); | |
807 | break; | |
808 | ||
809 | case 3: | |
810 | ptr++; | |
811 | get_operand (&ptr, operand + 0, 0); | |
812 | if (*ptr == ',') | |
813 | ptr++; | |
814 | get_operand (&ptr, operand + 1, 1); | |
815 | if (*ptr == ',') | |
816 | ptr++; | |
817 | get_operand (&ptr, operand + 2, 2); | |
818 | break; | |
819 | ||
820 | case 4: | |
821 | ptr++; | |
822 | get_operand (&ptr, operand + 0, 0); | |
823 | if (*ptr == ',') | |
824 | ptr++; | |
825 | get_operand (&ptr, operand + 1, 1); | |
826 | if (*ptr == ',') | |
827 | ptr++; | |
828 | get_operand (&ptr, operand + 2, 2); | |
829 | if (*ptr == ',') | |
830 | ptr++; | |
831 | get_cc_operand (&ptr, operand + 3, 3); | |
832 | break; | |
833 | default: | |
834 | abort (); | |
835 | } | |
836 | ||
837 | return ptr; | |
838 | } | |
839 | ||
840 | /* Passed a pointer to a list of opcodes which use different | |
841 | addressing modes, return the opcode which matches the opcodes | |
842 | provided | |
843 | */ | |
844 | ||
845 | static | |
846 | opcode_entry_type * | |
c0fecd35 AM |
847 | get_specific (opcode, operands) |
848 | opcode_entry_type *opcode; | |
849 | op_type *operands; | |
252b5132 RH |
850 | |
851 | { | |
852 | opcode_entry_type *this_try = opcode; | |
853 | int found = 0; | |
854 | unsigned int noperands = opcode->noperands; | |
855 | ||
856 | unsigned int dispreg; | |
857 | unsigned int this_index = opcode->idx; | |
858 | ||
859 | while (this_index == opcode->idx && !found) | |
860 | { | |
861 | unsigned int i; | |
862 | ||
863 | this_try = opcode++; | |
864 | for (i = 0; i < noperands; i++) | |
865 | { | |
866 | int mode = operands[i].mode; | |
867 | ||
868 | if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK)) | |
869 | { | |
870 | /* it could be an pc rel operand, if this is a da mode and | |
871 | we like disps, then insert it */ | |
872 | ||
873 | if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP) | |
874 | { | |
875 | /* This is the case */ | |
876 | operands[i].mode = CLASS_DISP; | |
877 | } | |
878 | else if (mode == CLASS_BA && this_try->arg_info[i]) | |
879 | { | |
880 | /* Can't think of a way to turn what we've been given into | |
881 | something that's ok */ | |
882 | goto fail; | |
883 | } | |
884 | else if (this_try->arg_info[i] & CLASS_PR) | |
885 | { | |
886 | if (mode == CLASS_REG_LONG && segmented_mode) | |
887 | { | |
888 | /* ok */ | |
889 | } | |
890 | else if (mode == CLASS_REG_WORD && !segmented_mode) | |
891 | { | |
892 | /* ok */ | |
893 | } | |
894 | else | |
895 | goto fail; | |
896 | } | |
897 | else | |
898 | goto fail; | |
899 | } | |
900 | switch (mode & CLASS_MASK) | |
901 | { | |
902 | default: | |
903 | break; | |
904 | case CLASS_X: | |
905 | case CLASS_IR: | |
906 | case CLASS_BA: | |
907 | case CLASS_BX: | |
908 | case CLASS_DISP: | |
909 | case CLASS_REG: | |
910 | case CLASS_REG_WORD: | |
911 | case CLASS_REG_BYTE: | |
912 | case CLASS_REG_QUAD: | |
913 | case CLASS_REG_LONG: | |
914 | case CLASS_REGN0: | |
915 | reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg; | |
916 | break; | |
917 | } | |
918 | } | |
919 | ||
920 | found = 1; | |
921 | fail:; | |
922 | } | |
923 | if (found) | |
924 | return this_try; | |
925 | else | |
926 | return 0; | |
927 | } | |
928 | ||
929 | static void | |
c0fecd35 AM |
930 | check_operand (operand, width, string) |
931 | struct z8k_op *operand; | |
932 | unsigned int width; | |
933 | char *string; | |
252b5132 RH |
934 | { |
935 | if (operand->exp.X_add_symbol == 0 | |
936 | && operand->exp.X_op_symbol == 0) | |
937 | { | |
938 | ||
939 | /* No symbol involved, let's look at offset, it's dangerous if any of | |
940 | the high bits are not 0 or ff's, find out by oring or anding with | |
941 | the width and seeing if the answer is 0 or all fs*/ | |
942 | if ((operand->exp.X_add_number & ~width) != 0 && | |
943 | (operand->exp.X_add_number | width) != (~0)) | |
944 | { | |
945 | as_warn (_("operand %s0x%x out of range."), string, operand->exp.X_add_number); | |
946 | } | |
947 | } | |
948 | ||
949 | } | |
950 | ||
951 | static char buffer[20]; | |
952 | ||
953 | static void | |
c0fecd35 AM |
954 | newfix (ptr, type, operand) |
955 | int ptr; | |
956 | int type; | |
957 | expressionS *operand; | |
252b5132 RH |
958 | { |
959 | if (operand->X_add_symbol | |
960 | || operand->X_op_symbol | |
961 | || operand->X_add_number) | |
962 | { | |
963 | fix_new_exp (frag_now, | |
964 | ptr, | |
965 | 1, | |
966 | operand, | |
967 | 0, | |
968 | type); | |
969 | } | |
970 | } | |
971 | ||
972 | static char * | |
c0fecd35 AM |
973 | apply_fix (ptr, type, operand, size) |
974 | char *ptr; | |
975 | int type; | |
976 | expressionS *operand; | |
977 | int size; | |
252b5132 RH |
978 | { |
979 | int n = operand->X_add_number; | |
980 | ||
981 | operand->X_add_number = n; | |
982 | newfix ((ptr - buffer) / 2, type, operand); | |
983 | #if 1 | |
984 | switch (size) | |
985 | { | |
986 | case 8: /* 8 nibbles == 32 bits */ | |
987 | *ptr++ = n >> 28; | |
988 | *ptr++ = n >> 24; | |
989 | *ptr++ = n >> 20; | |
990 | *ptr++ = n >> 16; | |
991 | case 4: /* 4 niblles == 16 bits */ | |
992 | *ptr++ = n >> 12; | |
993 | *ptr++ = n >> 8; | |
994 | case 2: | |
995 | *ptr++ = n >> 4; | |
996 | case 1: | |
997 | *ptr++ = n >> 0; | |
998 | break; | |
999 | } | |
1000 | #endif | |
1001 | return ptr; | |
1002 | ||
1003 | } | |
1004 | ||
1005 | /* Now we know what sort of opcodes it is, lets build the bytes - | |
1006 | */ | |
1007 | #define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y; | |
1008 | static void | |
1009 | build_bytes (this_try, operand) | |
1010 | opcode_entry_type * this_try; | |
1011 | struct z8k_op *operand; | |
1012 | { | |
1013 | unsigned int i; | |
1014 | ||
1015 | int length; | |
1016 | char *output; | |
1017 | char *output_ptr = buffer; | |
1018 | char part; | |
1019 | int c; | |
1020 | char high; | |
1021 | int nib; | |
1022 | int nibble; | |
1023 | unsigned int *class_ptr; | |
1024 | ||
1025 | frag_wane (frag_now); | |
1026 | frag_new (0); | |
1027 | ||
1028 | memset (buffer, 20, 0); | |
1029 | class_ptr = this_try->byte_info; | |
1030 | top:; | |
1031 | ||
1032 | for (nibble = 0; c = *class_ptr++; nibble++) | |
1033 | { | |
1034 | ||
1035 | switch (c & CLASS_MASK) | |
1036 | { | |
1037 | default: | |
1038 | ||
1039 | abort (); | |
1040 | case CLASS_ADDRESS: | |
1041 | /* Direct address, we don't cope with the SS mode right now */ | |
1042 | if (segmented_mode) | |
1043 | { | |
1044 | da_operand->X_add_number |= 0x80000000; | |
1045 | output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8); | |
1046 | } | |
1047 | else | |
1048 | { | |
1049 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1050 | } | |
1051 | da_operand = 0; | |
1052 | break; | |
1053 | case CLASS_DISP8: | |
1054 | /* pc rel 8 bit */ | |
1055 | output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2); | |
1056 | da_operand = 0; | |
1057 | break; | |
1058 | ||
1059 | case CLASS_0DISP7: | |
1060 | /* pc rel 7 bit */ | |
1061 | *output_ptr = 0; | |
1062 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
1063 | da_operand = 0; | |
1064 | break; | |
1065 | ||
1066 | case CLASS_1DISP7: | |
1067 | /* pc rel 7 bit */ | |
1068 | *output_ptr = 0x80; | |
1069 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
1070 | output_ptr[-2] = 0x8; | |
1071 | da_operand = 0; | |
1072 | break; | |
1073 | ||
1074 | case CLASS_BIT_1OR2: | |
1075 | *output_ptr = c & 0xf; | |
1076 | if (imm_operand) | |
1077 | { | |
1078 | if (imm_operand->X_add_number == 2) | |
1079 | { | |
1080 | *output_ptr |= 2; | |
1081 | } | |
1082 | else if (imm_operand->X_add_number != 1) | |
1083 | { | |
1084 | as_bad (_("immediate must be 1 or 2")); | |
1085 | } | |
1086 | } | |
1087 | else | |
1088 | { | |
1089 | as_bad (_("immediate 1 or 2 expected")); | |
1090 | } | |
1091 | output_ptr++; | |
1092 | break; | |
1093 | case CLASS_CC: | |
1094 | *output_ptr++ = the_cc; | |
1095 | break; | |
1096 | case CLASS_0CCC: | |
1097 | *output_ptr++ = the_ctrl; | |
1098 | break; | |
1099 | case CLASS_1CCC: | |
1100 | *output_ptr++ = the_ctrl | 0x8; | |
1101 | break; | |
1102 | case CLASS_00II: | |
1103 | *output_ptr++ = (~the_interrupt & 0x3); | |
1104 | break; | |
1105 | case CLASS_01II: | |
1106 | *output_ptr++ = (~the_interrupt & 0x3) | 0x4; | |
1107 | break; | |
1108 | case CLASS_FLAGS: | |
1109 | *output_ptr++ = the_flags; | |
1110 | break; | |
1111 | case CLASS_BIT: | |
1112 | *output_ptr++ = c & 0xf; | |
1113 | break; | |
1114 | case CLASS_REGN0: | |
1115 | if (reg[c & 0xf] == 0) | |
1116 | { | |
1117 | as_bad (_("can't use R0 here")); | |
1118 | } | |
1119 | case CLASS_REG: | |
1120 | case CLASS_REG_BYTE: | |
1121 | case CLASS_REG_WORD: | |
1122 | case CLASS_REG_LONG: | |
1123 | case CLASS_REG_QUAD: | |
1124 | /* Insert bit mattern of | |
1125 | right reg */ | |
1126 | *output_ptr++ = reg[c & 0xf]; | |
1127 | break; | |
1128 | case CLASS_DISP: | |
1129 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1130 | da_operand = 0; | |
1131 | break; | |
1132 | ||
1133 | case CLASS_IMM: | |
1134 | { | |
1135 | nib = 0; | |
1136 | switch (c & ARG_MASK) | |
1137 | { | |
1138 | case ARG_IMM4: | |
1139 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1140 | break; | |
1141 | case ARG_IMM4M1: | |
1142 | imm_operand->X_add_number--; | |
1143 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1144 | break; | |
1145 | case ARG_IMMNMINUS1: | |
1146 | imm_operand->X_add_number--; | |
1147 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1148 | break; | |
1149 | case ARG_NIM8: | |
1150 | imm_operand->X_add_number = -imm_operand->X_add_number; | |
1151 | case ARG_IMM8: | |
1152 | output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2); | |
1153 | break; | |
1154 | case ARG_IMM16: | |
1155 | output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4); | |
1156 | break; | |
1157 | ||
1158 | case ARG_IMM32: | |
1159 | output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8); | |
1160 | break; | |
1161 | ||
1162 | default: | |
1163 | abort (); | |
1164 | } | |
1165 | } | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | /* Copy from the nibble buffer into the frag */ | |
1170 | ||
1171 | { | |
1172 | int length = (output_ptr - buffer) / 2; | |
1173 | char *src = buffer; | |
1174 | char *fragp = frag_more (length); | |
1175 | ||
1176 | while (src < output_ptr) | |
1177 | { | |
1178 | *fragp = (src[0] << 4) | src[1]; | |
1179 | src += 2; | |
1180 | fragp++; | |
1181 | } | |
1182 | ||
1183 | } | |
1184 | ||
1185 | } | |
1186 | ||
1187 | /* This is the guts of the machine-dependent assembler. STR points to a | |
1994a7c7 NC |
1188 | machine dependent instruction. This function is supposed to emit |
1189 | the frags/bytes it assembles to. */ | |
252b5132 RH |
1190 | |
1191 | void | |
c0fecd35 AM |
1192 | md_assemble (str) |
1193 | char *str; | |
252b5132 RH |
1194 | { |
1195 | char *op_start; | |
1196 | char *op_end; | |
1197 | unsigned int i; | |
1198 | struct z8k_op operand[3]; | |
1199 | opcode_entry_type *opcode; | |
1200 | opcode_entry_type *prev_opcode; | |
1201 | ||
1202 | char *dot = 0; | |
1203 | char c; | |
1204 | ||
1205 | /* Drop leading whitespace */ | |
1206 | while (*str == ' ') | |
1207 | str++; | |
1208 | ||
1209 | /* find the op code end */ | |
1210 | for (op_start = op_end = str; | |
1211 | *op_end != 0 && *op_end != ' '; | |
1212 | op_end++) | |
1213 | { | |
1214 | } | |
1215 | ||
1216 | ; | |
1217 | ||
1218 | if (op_end == op_start) | |
1219 | { | |
1220 | as_bad (_("can't find opcode ")); | |
1221 | } | |
1222 | c = *op_end; | |
1223 | ||
1224 | *op_end = 0; | |
1225 | ||
1226 | opcode = (opcode_entry_type *) hash_find (opcode_hash_control, | |
1227 | op_start); | |
1228 | ||
1229 | ||
1230 | if (opcode == NULL) | |
1231 | { | |
1232 | as_bad (_("unknown opcode")); | |
1233 | return; | |
1234 | } | |
1235 | ||
1236 | if (opcode->opcode == 250) | |
1237 | { | |
1238 | /* was really a pseudo op */ | |
1239 | ||
1240 | pseudo_typeS *p; | |
1241 | char oc; | |
1242 | ||
1243 | char *old = input_line_pointer; | |
1244 | *op_end = c; | |
1245 | ||
1246 | ||
1247 | input_line_pointer = op_end; | |
1248 | ||
1249 | oc = *old; | |
1250 | *old = '\n'; | |
1251 | while (*input_line_pointer == ' ') | |
1252 | input_line_pointer++; | |
1253 | p = (pseudo_typeS *) (opcode->func); | |
1254 | ||
1255 | (p->poc_handler) (p->poc_val); | |
1256 | input_line_pointer = old; | |
1257 | *old = oc; | |
1258 | } | |
1259 | else | |
1260 | { | |
1261 | input_line_pointer = get_operands (opcode, op_end, | |
1262 | operand); | |
1263 | prev_opcode = opcode; | |
1264 | ||
1265 | opcode = get_specific (opcode, operand); | |
1266 | ||
1267 | if (opcode == 0) | |
1268 | { | |
1269 | /* Couldn't find an opcode which matched the operands */ | |
1270 | char *where = frag_more (2); | |
1271 | ||
1272 | where[0] = 0x0; | |
1273 | where[1] = 0x0; | |
1274 | ||
1275 | as_bad (_("Can't find opcode to match operands")); | |
1276 | return; | |
1277 | } | |
1278 | ||
1279 | build_bytes (opcode, operand); | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | void | |
c0fecd35 AM |
1284 | tc_crawl_symbol_chain (headers) |
1285 | object_headers *headers; | |
252b5132 RH |
1286 | { |
1287 | printf (_("call to tc_crawl_symbol_chain \n")); | |
1288 | } | |
1289 | ||
1290 | symbolS * | |
c0fecd35 AM |
1291 | md_undefined_symbol (name) |
1292 | char *name; | |
252b5132 RH |
1293 | { |
1294 | return 0; | |
1295 | } | |
1296 | ||
1297 | void | |
c0fecd35 AM |
1298 | tc_headers_hook (headers) |
1299 | object_headers *headers; | |
252b5132 RH |
1300 | { |
1301 | printf (_("call to tc_headers_hook \n")); | |
1302 | } | |
1303 | ||
1304 | /* Various routines to kill one day */ | |
1305 | /* Equal to MAX_PRECISION in atof-ieee.c */ | |
1306 | #define MAX_LITTLENUMS 6 | |
1307 | ||
1308 | /* Turn a string in input_line_pointer into a floating point constant of type | |
1309 | type, and store the appropriate bytes in *litP. The number of LITTLENUMS | |
1310 | emitted is stored in *sizeP . An error message is returned, or NULL on OK. | |
1311 | */ | |
1312 | char * | |
1313 | md_atof (type, litP, sizeP) | |
1314 | char type; | |
1315 | char *litP; | |
1316 | int *sizeP; | |
1317 | { | |
1318 | int prec; | |
1319 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1320 | LITTLENUM_TYPE *wordP; | |
1321 | char *t; | |
1322 | char *atof_ieee (); | |
1323 | ||
1324 | switch (type) | |
1325 | { | |
1326 | case 'f': | |
1327 | case 'F': | |
1328 | case 's': | |
1329 | case 'S': | |
1330 | prec = 2; | |
1331 | break; | |
1332 | ||
1333 | case 'd': | |
1334 | case 'D': | |
1335 | case 'r': | |
1336 | case 'R': | |
1337 | prec = 4; | |
1338 | break; | |
1339 | ||
1340 | case 'x': | |
1341 | case 'X': | |
1342 | prec = 6; | |
1343 | break; | |
1344 | ||
1345 | case 'p': | |
1346 | case 'P': | |
1347 | prec = 6; | |
1348 | break; | |
1349 | ||
1350 | default: | |
1351 | *sizeP = 0; | |
1352 | return _("Bad call to MD_ATOF()"); | |
1353 | } | |
1354 | t = atof_ieee (input_line_pointer, type, words); | |
1355 | if (t) | |
1356 | input_line_pointer = t; | |
1357 | ||
1358 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1359 | for (wordP = words; prec--;) | |
1360 | { | |
1361 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1362 | litP += sizeof (LITTLENUM_TYPE); | |
1363 | } | |
1364 | return 0; | |
1365 | } | |
1366 | \f | |
1367 | CONST char *md_shortopts = "z:"; | |
1368 | struct option md_longopts[] = { | |
1369 | {NULL, no_argument, NULL, 0} | |
1370 | }; | |
1371 | size_t md_longopts_size = sizeof(md_longopts); | |
1372 | ||
1373 | int | |
1374 | md_parse_option (c, arg) | |
1375 | int c; | |
1376 | char *arg; | |
1377 | { | |
1378 | switch (c) | |
1379 | { | |
1380 | case 'z': | |
1381 | if (!strcmp (arg, "8001")) | |
1382 | s_segm (); | |
1383 | else if (!strcmp (arg, "8002")) | |
1384 | s_unseg (); | |
1385 | else | |
1386 | { | |
1387 | as_bad (_("invalid architecture -z%s"), arg); | |
1388 | return 0; | |
1389 | } | |
1390 | break; | |
1391 | ||
1392 | default: | |
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | return 1; | |
1397 | } | |
1398 | ||
1399 | void | |
1400 | md_show_usage (stream) | |
1401 | FILE *stream; | |
1402 | { | |
1403 | fprintf(stream, _("\ | |
1404 | Z8K options:\n\ | |
1405 | -z8001 generate segmented code\n\ | |
1406 | -z8002 generate unsegmented code\n")); | |
1407 | } | |
1408 | \f | |
1409 | void | |
1410 | tc_aout_fix_to_chars () | |
1411 | { | |
1412 | printf (_("call to tc_aout_fix_to_chars \n")); | |
1413 | abort (); | |
1414 | } | |
1415 | ||
1416 | void | |
1417 | md_convert_frag (headers, seg, fragP) | |
1418 | object_headers *headers; | |
1419 | segT seg; | |
1420 | fragS *fragP; | |
1421 | { | |
1422 | printf (_("call to md_convert_frag \n")); | |
1423 | abort (); | |
1424 | } | |
1425 | ||
1426 | valueT | |
c0fecd35 AM |
1427 | md_section_align (seg, size) |
1428 | segT seg; | |
1429 | valueT size; | |
252b5132 RH |
1430 | { |
1431 | return ((size + (1 << section_alignment[(int) seg]) - 1) & (-1 << section_alignment[(int) seg])); | |
1432 | ||
1433 | } | |
1434 | ||
1435 | void | |
1436 | md_apply_fix (fixP, val) | |
1437 | fixS *fixP; | |
1438 | long val; | |
1439 | { | |
1440 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
1441 | ||
1442 | switch (fixP->fx_r_type) | |
1443 | { | |
1444 | case R_IMM4L: | |
1445 | buf[0] = (buf[0] & 0xf0) | ((buf[0] + val) & 0xf); | |
1446 | break; | |
1447 | ||
1448 | case R_JR: | |
1449 | ||
1450 | *buf++ = val; | |
1451 | /* if (val != 0) abort();*/ | |
1452 | break; | |
1453 | ||
1454 | case R_DISP7: | |
1455 | ||
1456 | *buf++ += val; | |
1457 | /* if (val != 0) abort();*/ | |
1458 | break; | |
1459 | ||
1460 | case R_IMM8: | |
1461 | buf[0] += val; | |
1462 | break; | |
1463 | case R_IMM16: | |
1464 | *buf++ = (val >> 8); | |
1465 | *buf++ = val; | |
1466 | break; | |
1467 | case R_IMM32: | |
1468 | *buf++ = (val >> 24); | |
1469 | *buf++ = (val >> 16); | |
1470 | *buf++ = (val >> 8); | |
1471 | *buf++ = val; | |
1472 | break; | |
1473 | #if 0 | |
1474 | case R_DA | R_SEG: | |
1475 | *buf++ = (val >> 16); | |
1476 | *buf++ = 0x00; | |
1477 | *buf++ = (val >> 8); | |
1478 | *buf++ = val; | |
1479 | break; | |
1480 | #endif | |
1481 | ||
1482 | case 0: | |
1483 | md_number_to_chars (buf, val, fixP->fx_size); | |
1484 | break; | |
1485 | ||
1486 | default: | |
1487 | abort (); | |
1488 | ||
1489 | } | |
1490 | } | |
1491 | ||
1492 | int | |
1493 | md_estimate_size_before_relax (fragP, segment_type) | |
1494 | register fragS *fragP; | |
1495 | register segT segment_type; | |
1496 | { | |
1497 | printf (_("call tomd_estimate_size_before_relax \n")); | |
1498 | abort (); | |
1499 | } | |
1500 | ||
1501 | /* Put number into target byte order */ | |
1502 | ||
1503 | void | |
c0fecd35 AM |
1504 | md_number_to_chars (ptr, use, nbytes) |
1505 | char *ptr; | |
1506 | valueT use; | |
1507 | int nbytes; | |
252b5132 RH |
1508 | { |
1509 | number_to_chars_bigendian (ptr, use, nbytes); | |
1510 | } | |
1511 | long | |
1512 | md_pcrel_from (fixP) | |
1513 | fixS *fixP; | |
1514 | { | |
1515 | abort (); | |
1516 | } | |
1517 | ||
1518 | void | |
1519 | tc_coff_symbol_emit_hook (s) | |
49309057 | 1520 | symbolS *s; |
252b5132 RH |
1521 | { |
1522 | } | |
1523 | ||
1524 | void | |
1525 | tc_reloc_mangle (fix_ptr, intr, base) | |
1526 | fixS *fix_ptr; | |
1527 | struct internal_reloc *intr; | |
1528 | bfd_vma base; | |
1529 | ||
1530 | { | |
1531 | symbolS *symbol_ptr; | |
1532 | ||
1533 | if (fix_ptr->fx_addsy && | |
1534 | fix_ptr->fx_subsy) | |
1535 | { | |
1536 | symbolS *add = fix_ptr->fx_addsy; | |
1537 | symbolS *sub = fix_ptr->fx_subsy; | |
1538 | if (S_GET_SEGMENT(add) != S_GET_SEGMENT(sub)) | |
1539 | { | |
1540 | as_bad(_("Can't subtract symbols in different sections %s %s"), | |
1541 | S_GET_NAME(add), S_GET_NAME(sub)); | |
1542 | } | |
1543 | else { | |
1544 | int diff = S_GET_VALUE(add) - S_GET_VALUE(sub); | |
1545 | fix_ptr->fx_addsy = 0; | |
1546 | fix_ptr->fx_subsy = 0; | |
1547 | fix_ptr->fx_offset += diff; | |
1548 | } | |
1549 | } | |
1550 | symbol_ptr = fix_ptr->fx_addsy; | |
1551 | ||
1552 | /* If this relocation is attached to a symbol then it's ok | |
1553 | to output it */ | |
1554 | if (fix_ptr->fx_r_type == 0) | |
1555 | { | |
1556 | /* cons likes to create reloc32's whatever the size of the reloc.. */ | |
1557 | switch (fix_ptr->fx_size) | |
1558 | { | |
1559 | case 2: | |
1560 | intr->r_type = R_IMM16; | |
1561 | break; | |
1562 | case 1: | |
1563 | intr->r_type = R_IMM8; | |
1564 | break; | |
1565 | case 4: | |
1566 | intr->r_type = R_IMM32; | |
1567 | break; | |
1568 | default: | |
1569 | abort (); | |
1570 | } | |
1571 | ||
1572 | } | |
1573 | else | |
1574 | { | |
1575 | intr->r_type = fix_ptr->fx_r_type; | |
1576 | } | |
1577 | ||
1578 | intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base; | |
1579 | intr->r_offset = fix_ptr->fx_offset; | |
1580 | ||
1581 | if (symbol_ptr) | |
1582 | intr->r_symndx = symbol_ptr->sy_number; | |
1583 | else | |
1584 | intr->r_symndx = -1; | |
1585 | } | |
1586 |