Commit | Line | Data |
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252b5132 | 1 | /* tc-h8500.c -- Assemble code for the Hitachi H8/500 |
e7b305a2 | 2 | Copyright (C) 1993, 94, 95, 98, 2000 Free Software Foundation. |
252b5132 RH |
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 2, 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 the Free | |
18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
21 | /* | |
22 | Written By Steve Chamberlain | |
23 | sac@cygnus.com | |
24 | */ | |
25 | ||
26 | #include <stdio.h> | |
27 | #include "as.h" | |
28 | #include "bfd.h" | |
29 | #include "subsegs.h" | |
30 | #define DEFINE_TABLE | |
31 | #define ASSEMBLER_TABLE | |
32 | #include "opcodes/h8500-opc.h" | |
33 | #include <ctype.h> | |
34 | ||
35 | const char comment_chars[] = "!"; | |
36 | const char line_separator_chars[] = ";"; | |
37 | const char line_comment_chars[] = "!#"; | |
38 | ||
39 | /* This table describes all the machine specific pseudo-ops the assembler | |
40 | has to support. The fields are: | |
41 | pseudo-op name without dot | |
42 | function to call to execute this pseudo-op | |
43 | Integer arg to pass to the function | |
44 | */ | |
45 | ||
46 | void cons (); | |
47 | ||
48 | const pseudo_typeS md_pseudo_table[] = | |
49 | { | |
50 | {"int", cons, 2}, | |
51 | {"data.b", cons, 1}, | |
52 | {"data.w", cons, 2}, | |
53 | {"data.l", cons, 4}, | |
54 | {"form", listing_psize, 0}, | |
55 | {"heading", listing_title, 0}, | |
56 | {"import", s_ignore, 0}, | |
57 | {"page", listing_eject, 0}, | |
58 | {"program", s_ignore, 0}, | |
59 | {0, 0, 0} | |
60 | }; | |
61 | ||
62 | const int md_reloc_size; | |
63 | ||
64 | const char EXP_CHARS[] = "eE"; | |
65 | ||
66 | /* Chars that mean this number is a floating point constant */ | |
67 | /* As in 0f12.456 */ | |
68 | /* or 0d1.2345e12 */ | |
69 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
70 | ||
71 | #define C(a,b) ENCODE_RELAX(a,b) | |
72 | #define ENCODE_RELAX(what,length) (((what) << 2) + (length)) | |
73 | ||
74 | #define GET_WHAT(x) ((x>>2)) | |
75 | ||
76 | #define BYTE_DISP 1 | |
77 | #define WORD_DISP 2 | |
78 | #define UNDEF_BYTE_DISP 0 | |
79 | #define UNDEF_WORD_DISP 3 | |
80 | ||
81 | #define BRANCH 1 | |
82 | #define SCB_F 2 | |
83 | #define SCB_TST 3 | |
84 | #define END 4 | |
85 | ||
86 | #define BYTE_F 127 | |
87 | #define BYTE_B -126 | |
88 | #define WORD_F 32767 | |
89 | #define WORD_B 32768 | |
90 | ||
91 | relax_typeS md_relax_table[C (END, 0)]; | |
92 | ||
93 | static struct hash_control *opcode_hash_control; /* Opcode mnemonics */ | |
94 | ||
95 | /* | |
96 | This function is called once, at assembler startup time. This should | |
e7b305a2 | 97 | set up all the tables, etc. that the MD part of the assembler needs |
252b5132 RH |
98 | */ |
99 | ||
100 | void | |
101 | md_begin () | |
102 | { | |
103 | h8500_opcode_info *opcode; | |
104 | char prev_buffer[100]; | |
105 | int idx = 0; | |
106 | register relax_typeS *table; | |
107 | ||
108 | opcode_hash_control = hash_new (); | |
109 | prev_buffer[0] = 0; | |
110 | ||
111 | /* Insert unique names into hash table */ | |
112 | for (opcode = h8500_table; opcode->name; opcode++) | |
113 | { | |
114 | if (idx != opcode->idx) | |
115 | { | |
116 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
117 | idx++; | |
118 | } | |
119 | } | |
120 | ||
121 | /* Initialize the relax table. We use a local variable to avoid | |
122 | warnings about modifying a supposedly const data structure. */ | |
123 | table = (relax_typeS *) md_relax_table; | |
124 | table[C (BRANCH, BYTE_DISP)].rlx_forward = BYTE_F; | |
125 | table[C (BRANCH, BYTE_DISP)].rlx_backward = BYTE_B; | |
126 | table[C (BRANCH, BYTE_DISP)].rlx_length = 2; | |
127 | table[C (BRANCH, BYTE_DISP)].rlx_more = C (BRANCH, WORD_DISP); | |
128 | ||
129 | table[C (BRANCH, WORD_DISP)].rlx_forward = WORD_F; | |
130 | table[C (BRANCH, WORD_DISP)].rlx_backward = WORD_B; | |
131 | table[C (BRANCH, WORD_DISP)].rlx_length = 3; | |
132 | table[C (BRANCH, WORD_DISP)].rlx_more = 0; | |
133 | ||
134 | table[C (SCB_F, BYTE_DISP)].rlx_forward = BYTE_F; | |
135 | table[C (SCB_F, BYTE_DISP)].rlx_backward = BYTE_B; | |
136 | table[C (SCB_F, BYTE_DISP)].rlx_length = 3; | |
137 | table[C (SCB_F, BYTE_DISP)].rlx_more = C (SCB_F, WORD_DISP); | |
138 | ||
139 | table[C (SCB_F, WORD_DISP)].rlx_forward = WORD_F; | |
140 | table[C (SCB_F, WORD_DISP)].rlx_backward = WORD_B; | |
141 | table[C (SCB_F, WORD_DISP)].rlx_length = 8; | |
142 | table[C (SCB_F, WORD_DISP)].rlx_more = 0; | |
143 | ||
144 | table[C (SCB_TST, BYTE_DISP)].rlx_forward = BYTE_F; | |
145 | table[C (SCB_TST, BYTE_DISP)].rlx_backward = BYTE_B; | |
146 | table[C (SCB_TST, BYTE_DISP)].rlx_length = 3; | |
147 | table[C (SCB_TST, BYTE_DISP)].rlx_more = C (SCB_TST, WORD_DISP); | |
148 | ||
149 | table[C (SCB_TST, WORD_DISP)].rlx_forward = WORD_F; | |
150 | table[C (SCB_TST, WORD_DISP)].rlx_backward = WORD_B; | |
151 | table[C (SCB_TST, WORD_DISP)].rlx_length = 10; | |
152 | table[C (SCB_TST, WORD_DISP)].rlx_more = 0; | |
153 | ||
154 | } | |
155 | ||
156 | static int rn; /* register number used by RN */ | |
157 | static int rs; /* register number used by RS */ | |
158 | static int rd; /* register number used by RD */ | |
159 | static int crb; /* byte size cr */ | |
160 | static int crw; /* word sized cr */ | |
161 | static int cr; /* unknown size cr */ | |
162 | ||
163 | static expressionS displacement;/* displacement expression */ | |
164 | static int displacement_size; /* and size if given */ | |
165 | ||
166 | static int immediate_inpage; | |
167 | static expressionS immediate; /* immediate expression */ | |
168 | static int immediate_size; /* and size if given */ | |
169 | ||
170 | static expressionS absolute; /* absolute expression */ | |
171 | static int absolute_size; /* and size if given */ | |
172 | ||
173 | typedef struct | |
174 | { | |
175 | int type; | |
176 | int reg; | |
177 | expressionS exp; | |
178 | int page; | |
179 | } | |
180 | ||
181 | h8500_operand_info; | |
182 | ||
bc0d738a NC |
183 | /* Try to parse a reg name. Return the number of chars consumed. */ |
184 | ||
252b5132 RH |
185 | static int |
186 | parse_reg (src, mode, reg) | |
187 | char *src; | |
188 | int *mode; | |
189 | int *reg; | |
190 | { | |
191 | char *end; | |
192 | int len; | |
193 | ||
194 | /* Cribbed from get_symbol_end(). */ | |
195 | if (!is_name_beginner (*src) || *src == '\001') | |
196 | return 0; | |
3dd5103b | 197 | end = src + 1; |
252b5132 RH |
198 | while (is_part_of_name (*end) || *end == '\001') |
199 | end++; | |
200 | len = end - src; | |
201 | ||
202 | if (len == 2 && src[0] == 'r') | |
203 | { | |
204 | if (src[1] >= '0' && src[1] <= '7') | |
205 | { | |
206 | *mode = RN; | |
207 | *reg = (src[1] - '0'); | |
208 | return len; | |
209 | } | |
210 | } | |
211 | if (len == 2 && src[0] == 's' && src[1] == 'p') | |
212 | { | |
213 | *mode = RN; | |
214 | *reg = 7; | |
215 | return len; | |
216 | } | |
217 | if (len == 3 && src[0] == 'c' && src[1] == 'c' && src[2] == 'r') | |
218 | { | |
219 | *mode = CRB; | |
220 | *reg = 1; | |
221 | return len; | |
222 | } | |
223 | if (len == 2 && src[0] == 's' && src[1] == 'r') | |
224 | { | |
225 | *mode = CRW; | |
226 | *reg = 0; | |
227 | return len; | |
228 | } | |
229 | if (len == 2 && src[0] == 'b' && src[1] == 'r') | |
230 | { | |
231 | *mode = CRB; | |
232 | *reg = 3; | |
233 | return len; | |
234 | } | |
235 | if (len == 2 && src[0] == 'e' && src[1] == 'p') | |
236 | { | |
237 | *mode = CRB; | |
238 | *reg = 4; | |
239 | return len; | |
240 | } | |
241 | if (len == 2 && src[0] == 'd' && src[1] == 'p') | |
242 | { | |
243 | *mode = CRB; | |
244 | *reg = 5; | |
245 | return len; | |
246 | } | |
247 | if (len == 2 && src[0] == 't' && src[1] == 'p') | |
248 | { | |
249 | *mode = CRB; | |
250 | *reg = 7; | |
251 | return len; | |
252 | } | |
253 | if (len == 2 && src[0] == 'f' && src[1] == 'p') | |
254 | { | |
255 | *mode = RN; | |
256 | *reg = 6; | |
257 | return len; | |
258 | } | |
259 | return 0; | |
260 | } | |
261 | ||
3dd5103b | 262 | static char * |
252b5132 RH |
263 | parse_exp (s, op, page) |
264 | char *s; | |
265 | expressionS *op; | |
266 | int *page; | |
267 | { | |
268 | char *save; | |
269 | char *new; | |
270 | ||
271 | save = input_line_pointer; | |
272 | ||
273 | *page = 0; | |
274 | if (s[0] == '%') | |
275 | { | |
276 | if (s[1] == 'p' && s[2] == 'a' && s[3] == 'g' && s[4] == 'e') | |
277 | { | |
278 | s += 5; | |
279 | *page = 'p'; | |
280 | } | |
281 | if (s[1] == 'h' && s[2] == 'i' && s[3] == '1' && s[4] == '6') | |
282 | { | |
283 | s += 5; | |
284 | *page = 'h'; | |
285 | } | |
286 | else if (s[1] == 'o' && s[2] == 'f' && s[3] == 'f') | |
287 | { | |
288 | s += 4; | |
289 | *page = 'o'; | |
290 | } | |
291 | } | |
292 | ||
293 | input_line_pointer = s; | |
294 | ||
295 | expression (op); | |
296 | if (op->X_op == O_absent) | |
297 | as_bad (_("missing operand")); | |
298 | new = input_line_pointer; | |
299 | input_line_pointer = save; | |
300 | return new; | |
301 | } | |
302 | ||
303 | typedef enum | |
304 | { | |
305 | exp_signed, exp_unsigned, exp_sandu | |
306 | } sign_type; | |
307 | ||
308 | ||
309 | static char * | |
310 | skip_colonthing (sign, ptr, exp, def, size8, size16, size24) | |
311 | sign_type sign; | |
312 | char *ptr; | |
313 | h8500_operand_info *exp; | |
314 | int def; | |
315 | int size8; | |
316 | int size16; | |
317 | int size24; | |
318 | { | |
319 | ptr = parse_exp (ptr, &exp->exp, &exp->page); | |
320 | if (*ptr == ':') | |
321 | { | |
322 | ptr++; | |
323 | if (*ptr == '8') | |
324 | { | |
325 | ptr++; | |
326 | exp->type = size8; | |
327 | } | |
328 | else if (ptr[0] == '1' & ptr[1] == '6') | |
329 | { | |
330 | ptr += 2; | |
331 | exp->type = size16; | |
332 | } | |
333 | else if (ptr[0] == '2' & ptr[1] == '4') | |
334 | { | |
335 | if (!size24) | |
336 | { | |
337 | as_bad (_(":24 not valid for this opcode")); | |
338 | } | |
339 | ptr += 2; | |
340 | exp->type = size24; | |
341 | } | |
342 | else | |
343 | { | |
344 | as_bad (_("expect :8,:16 or :24")); | |
345 | exp->type = size16; | |
346 | } | |
347 | } | |
348 | else | |
349 | { | |
350 | if (exp->page == 'p') | |
351 | { | |
352 | exp->type = IMM8; | |
353 | } | |
354 | else if (exp->page == 'h') | |
355 | { | |
356 | exp->type = IMM16; | |
357 | } | |
358 | else | |
359 | { | |
360 | /* Let's work out the size from the context */ | |
361 | int n = exp->exp.X_add_number; | |
362 | if (size8 | |
363 | && exp->exp.X_op == O_constant | |
364 | && ((sign == exp_signed && (n >= -128 && n <= 127)) | |
365 | || (sign == exp_unsigned && (n >= 0 && (n <= 255))) | |
366 | || (sign == exp_sandu && (n >= -128 && (n <= 255))))) | |
367 | { | |
368 | exp->type = size8; | |
369 | } | |
370 | else | |
371 | { | |
372 | exp->type = def; | |
373 | } | |
374 | } | |
375 | } | |
376 | return ptr; | |
377 | } | |
378 | ||
379 | static int | |
380 | parse_reglist (src, op) | |
381 | char *src; | |
382 | h8500_operand_info *op; | |
383 | { | |
384 | int mode; | |
385 | int rn; | |
386 | int mask = 0; | |
387 | int rm; | |
388 | int idx = 1; /* skip ( */ | |
389 | ||
390 | while (src[idx] && src[idx] != ')') | |
391 | { | |
392 | int done = parse_reg (src + idx, &mode, &rn); | |
393 | ||
394 | if (done) | |
395 | { | |
396 | idx += done; | |
397 | mask |= 1 << rn; | |
398 | } | |
399 | else | |
400 | { | |
401 | as_bad (_("syntax error in reg list")); | |
402 | return 0; | |
403 | } | |
404 | if (src[idx] == '-') | |
405 | { | |
406 | idx++; | |
407 | done = parse_reg (src + idx, &mode, &rm); | |
408 | if (done) | |
409 | { | |
410 | idx += done; | |
411 | while (rn <= rm) | |
412 | { | |
413 | mask |= 1 << rn; | |
414 | rn++; | |
415 | } | |
416 | } | |
417 | else | |
418 | { | |
419 | as_bad (_("missing final register in range")); | |
420 | } | |
421 | } | |
422 | if (src[idx] == ',') | |
423 | idx++; | |
424 | } | |
425 | idx++; | |
426 | op->exp.X_add_symbol = 0; | |
427 | op->exp.X_op_symbol = 0; | |
428 | op->exp.X_add_number = mask; | |
429 | op->exp.X_op = O_constant; | |
430 | op->exp.X_unsigned = 1; | |
431 | op->type = IMM8; | |
432 | return idx; | |
433 | ||
434 | } | |
435 | ||
436 | /* The many forms of operand: | |
437 | ||
438 | Rn Register direct | |
439 | @Rn Register indirect | |
440 | @(disp[:size], Rn) Register indirect with displacement | |
441 | @Rn+ | |
442 | @-Rn | |
443 | @aa[:size] absolute | |
444 | #xx[:size] immediate data | |
445 | ||
446 | */ | |
447 | ||
448 | static void | |
449 | get_operand (ptr, op, ispage) | |
450 | char **ptr; | |
451 | h8500_operand_info *op; | |
452 | char ispage; | |
453 | { | |
454 | char *src = *ptr; | |
455 | int mode; | |
456 | unsigned int num; | |
457 | unsigned int len; | |
458 | op->page = 0; | |
459 | if (src[0] == '(' && src[1] == 'r') | |
460 | { | |
461 | /* This is a register list */ | |
462 | *ptr = src + parse_reglist (src, op); | |
463 | return; | |
464 | } | |
465 | ||
466 | len = parse_reg (src, &op->type, &op->reg); | |
467 | ||
468 | if (len) | |
469 | { | |
470 | *ptr = src + len; | |
471 | return; | |
472 | } | |
473 | ||
474 | if (*src == '@') | |
475 | { | |
476 | src++; | |
477 | if (*src == '-') | |
478 | { | |
479 | src++; | |
480 | len = parse_reg (src, &mode, &num); | |
481 | if (len == 0) | |
482 | { | |
483 | /* Oops, not a reg after all, must be ordinary exp */ | |
484 | src--; | |
485 | /* must be a symbol */ | |
486 | *ptr = skip_colonthing (exp_unsigned, src, | |
487 | op, ABS16, ABS8, ABS16, ABS24); | |
488 | return; | |
489 | } | |
490 | ||
491 | op->type = RNDEC; | |
492 | op->reg = num; | |
493 | *ptr = src + len; | |
494 | return; | |
495 | } | |
496 | if (*src == '(') | |
497 | { | |
498 | /* Disp */ | |
499 | src++; | |
500 | ||
3dd5103b | 501 | src = skip_colonthing (exp_signed, src, |
252b5132 RH |
502 | op, RNIND_D16, RNIND_D8, RNIND_D16, 0); |
503 | ||
504 | if (*src != ',') | |
505 | { | |
506 | as_bad (_("expected @(exp, Rn)")); | |
507 | return; | |
508 | } | |
509 | src++; | |
510 | len = parse_reg (src, &mode, &op->reg); | |
511 | if (len == 0 || mode != RN) | |
512 | { | |
513 | as_bad (_("expected @(exp, Rn)")); | |
514 | return; | |
515 | } | |
516 | src += len; | |
517 | if (*src != ')') | |
518 | { | |
519 | as_bad (_("expected @(exp, Rn)")); | |
520 | return; | |
521 | } | |
522 | *ptr = src + 1; | |
523 | return; | |
524 | } | |
525 | len = parse_reg (src, &mode, &num); | |
526 | ||
527 | if (len) | |
528 | { | |
529 | src += len; | |
530 | if (*src == '+') | |
531 | { | |
532 | src++; | |
533 | if (mode != RN) | |
534 | { | |
535 | as_bad (_("@Rn+ needs word register")); | |
536 | return; | |
537 | } | |
538 | op->type = RNINC; | |
539 | op->reg = num; | |
540 | *ptr = src; | |
541 | return; | |
542 | } | |
543 | if (mode != RN) | |
544 | { | |
545 | as_bad (_("@Rn needs word register")); | |
546 | return; | |
547 | } | |
548 | op->type = RNIND; | |
549 | op->reg = num; | |
550 | *ptr = src; | |
551 | return; | |
552 | } | |
553 | else | |
554 | { | |
555 | /* must be a symbol */ | |
556 | *ptr = | |
557 | skip_colonthing (exp_unsigned, src, op, | |
558 | ispage ? ABS24 : ABS16, ABS8, ABS16, ABS24); | |
559 | return; | |
560 | } | |
561 | } | |
562 | ||
563 | if (*src == '#') | |
564 | { | |
565 | src++; | |
566 | *ptr = skip_colonthing (exp_sandu, src, op, IMM16, IMM8, IMM16, ABS24); | |
567 | return; | |
568 | } | |
569 | else | |
570 | { | |
571 | *ptr = skip_colonthing (exp_signed, src, op, | |
572 | ispage ? ABS24 : PCREL8, PCREL8, PCREL16, ABS24); | |
573 | } | |
574 | } | |
575 | ||
3dd5103b | 576 | static char * |
252b5132 RH |
577 | get_operands (info, args, operand) |
578 | h8500_opcode_info *info; | |
579 | char *args; | |
580 | h8500_operand_info *operand; | |
581 | ||
582 | { | |
583 | char *ptr = args; | |
584 | ||
585 | switch (info->nargs) | |
586 | { | |
587 | case 0: | |
588 | operand[0].type = 0; | |
589 | operand[1].type = 0; | |
590 | break; | |
591 | ||
592 | case 1: | |
593 | ptr++; | |
594 | get_operand (&ptr, operand + 0, info->name[0] == 'p'); | |
595 | operand[1].type = 0; | |
596 | break; | |
597 | ||
598 | case 2: | |
599 | ptr++; | |
600 | get_operand (&ptr, operand + 0, 0); | |
601 | if (*ptr == ',') | |
602 | ptr++; | |
603 | get_operand (&ptr, operand + 1, 0); | |
604 | break; | |
605 | ||
606 | default: | |
607 | abort (); | |
608 | } | |
609 | ||
610 | return ptr; | |
611 | } | |
612 | ||
613 | /* Passed a pointer to a list of opcodes which use different | |
614 | addressing modes, return the opcode which matches the opcodes | |
3dd5103b | 615 | provided. */ |
252b5132 RH |
616 | |
617 | int pcrel8; /* Set when we've seen a pcrel operand */ | |
618 | ||
3dd5103b | 619 | static h8500_opcode_info * |
252b5132 RH |
620 | get_specific (opcode, operands) |
621 | h8500_opcode_info *opcode; | |
622 | h8500_operand_info *operands; | |
623 | { | |
624 | h8500_opcode_info *this_try = opcode; | |
625 | int found = 0; | |
626 | unsigned int noperands = opcode->nargs; | |
627 | ||
628 | unsigned int this_index = opcode->idx; | |
629 | ||
630 | while (this_index == opcode->idx && !found) | |
631 | { | |
632 | unsigned int i; | |
633 | ||
634 | this_try = opcode++; | |
635 | ||
636 | /* look at both operands needed by the opcodes and provided by | |
637 | the user*/ | |
638 | for (i = 0; i < noperands; i++) | |
639 | { | |
640 | h8500_operand_info *user = operands + i; | |
641 | ||
642 | switch (this_try->arg_type[i]) | |
643 | { | |
644 | case FPIND_D8: | |
645 | /* Opcode needs (disp:8,fp) */ | |
646 | if (user->type == RNIND_D8 && user->reg == 6) | |
647 | { | |
648 | displacement = user->exp; | |
649 | continue; | |
650 | } | |
651 | break; | |
652 | case RDIND_D16: | |
653 | if (user->type == RNIND_D16) | |
654 | { | |
655 | displacement = user->exp; | |
656 | rd = user->reg; | |
657 | continue; | |
658 | } | |
659 | break; | |
660 | case RDIND_D8: | |
661 | if (user->type == RNIND_D8) | |
662 | { | |
663 | displacement = user->exp; | |
664 | rd = user->reg; | |
665 | continue; | |
666 | } | |
667 | break; | |
668 | case RNIND_D16: | |
669 | case RNIND_D8: | |
670 | if (user->type == this_try->arg_type[i]) | |
671 | { | |
672 | displacement = user->exp; | |
673 | rn = user->reg; | |
674 | continue; | |
675 | } | |
676 | break; | |
677 | ||
678 | case SPDEC: | |
679 | if (user->type == RNDEC && user->reg == 7) | |
680 | { | |
681 | continue; | |
682 | } | |
683 | break; | |
684 | case SPINC: | |
685 | if (user->type == RNINC && user->reg == 7) | |
686 | { | |
687 | continue; | |
688 | } | |
689 | break; | |
690 | case ABS16: | |
691 | if (user->type == ABS16) | |
692 | { | |
693 | absolute = user->exp; | |
694 | continue; | |
695 | } | |
696 | break; | |
697 | case ABS8: | |
698 | if (user->type == ABS8) | |
699 | { | |
700 | absolute = user->exp; | |
701 | continue; | |
702 | } | |
703 | break; | |
704 | case ABS24: | |
705 | if (user->type == ABS24) | |
706 | { | |
707 | absolute = user->exp; | |
708 | continue; | |
709 | } | |
710 | break; | |
711 | ||
712 | case CRB: | |
713 | if ((user->type == CRB || user->type == CR) && user->reg != 0) | |
714 | { | |
715 | crb = user->reg; | |
716 | continue; | |
717 | } | |
718 | break; | |
719 | case CRW: | |
720 | if ((user->type == CRW || user->type == CR) && user->reg == 0) | |
721 | { | |
722 | crw = user->reg; | |
723 | continue; | |
724 | } | |
725 | break; | |
726 | case DISP16: | |
727 | if (user->type == DISP16) | |
728 | { | |
729 | displacement = user->exp; | |
730 | continue; | |
731 | } | |
732 | break; | |
733 | case DISP8: | |
734 | if (user->type == DISP8) | |
735 | { | |
736 | displacement = user->exp; | |
737 | continue; | |
738 | } | |
739 | break; | |
740 | case FP: | |
741 | if (user->type == RN && user->reg == 6) | |
742 | { | |
743 | continue; | |
744 | } | |
745 | break; | |
746 | case PCREL16: | |
747 | if (user->type == PCREL16) | |
748 | { | |
749 | displacement = user->exp; | |
750 | continue; | |
751 | } | |
752 | break; | |
753 | case PCREL8: | |
754 | if (user->type == PCREL8) | |
755 | { | |
756 | displacement = user->exp; | |
757 | pcrel8 = 1; | |
758 | continue; | |
759 | } | |
760 | break; | |
761 | ||
762 | case IMM16: | |
763 | if (user->type == IMM16 | |
764 | || user->type == IMM8) | |
765 | { | |
766 | immediate_inpage = user->page; | |
767 | immediate = user->exp; | |
768 | continue; | |
769 | } | |
770 | break; | |
771 | case RLIST: | |
772 | case IMM8: | |
773 | if (user->type == IMM8) | |
774 | { | |
775 | immediate_inpage = user->page; | |
776 | immediate = user->exp; | |
777 | continue; | |
778 | } | |
779 | break; | |
780 | case IMM4: | |
781 | if (user->type == IMM8) | |
782 | { | |
783 | immediate_inpage = user->page; | |
784 | immediate = user->exp; | |
785 | continue; | |
786 | } | |
787 | break; | |
788 | case QIM: | |
789 | if (user->type == IMM8 | |
790 | && user->exp.X_op == O_constant | |
791 | && | |
792 | (user->exp.X_add_number == -2 | |
793 | || user->exp.X_add_number == -1 | |
794 | || user->exp.X_add_number == 1 | |
795 | || user->exp.X_add_number == 2)) | |
796 | { | |
797 | immediate_inpage = user->page; | |
798 | immediate = user->exp; | |
799 | continue; | |
800 | } | |
801 | break; | |
802 | case RD: | |
803 | if (user->type == RN) | |
804 | { | |
805 | rd = user->reg; | |
806 | continue; | |
807 | } | |
808 | break; | |
809 | case RS: | |
810 | if (user->type == RN) | |
811 | { | |
812 | rs = user->reg; | |
813 | continue; | |
814 | } | |
815 | break; | |
816 | case RDIND: | |
817 | if (user->type == RNIND) | |
818 | { | |
819 | rd = user->reg; | |
820 | continue; | |
821 | ||
822 | } | |
823 | break; | |
824 | case RNINC: | |
825 | case RNIND: | |
826 | case RNDEC: | |
827 | case RN: | |
828 | ||
829 | if (user->type == this_try->arg_type[i]) | |
830 | { | |
831 | rn = user->reg; | |
832 | continue; | |
833 | } | |
834 | break; | |
835 | case SP: | |
836 | if (user->type == RN && user->reg == 7) | |
837 | { | |
838 | continue; | |
839 | } | |
840 | break; | |
841 | default: | |
842 | printf (_("unhandled %d\n"), this_try->arg_type[i]); | |
843 | break; | |
844 | } | |
845 | ||
846 | /* If we get here this didn't work out */ | |
847 | goto fail; | |
848 | } | |
849 | found = 1; | |
850 | fail:; | |
851 | ||
852 | } | |
853 | ||
854 | if (found) | |
855 | return this_try; | |
856 | else | |
857 | return 0; | |
858 | } | |
859 | ||
860 | int | |
861 | check (operand, low, high) | |
862 | expressionS *operand; | |
863 | int low; | |
864 | int high; | |
865 | { | |
866 | if (operand->X_op != O_constant | |
867 | || operand->X_add_number < low | |
868 | || operand->X_add_number > high) | |
869 | { | |
870 | as_bad (_("operand must be absolute in range %d..%d"), low, high); | |
871 | } | |
872 | return operand->X_add_number; | |
873 | } | |
874 | ||
3dd5103b | 875 | static void |
252b5132 RH |
876 | insert (output, index, exp, reloc, pcrel) |
877 | char *output; | |
878 | int index; | |
879 | expressionS *exp; | |
880 | int reloc; | |
881 | int pcrel; | |
882 | { | |
883 | fix_new_exp (frag_now, | |
884 | output - frag_now->fr_literal + index, | |
885 | 4, /* always say size is 4, but we know better */ | |
886 | exp, | |
887 | pcrel, | |
888 | reloc); | |
889 | } | |
890 | ||
891 | void | |
892 | build_relaxable_instruction (opcode, operand) | |
893 | h8500_opcode_info *opcode; | |
894 | h8500_operand_info *operand; | |
895 | { | |
896 | /* All relaxable instructions start life as two bytes but can become | |
3dd5103b NC |
897 | three bytes long if a lonely branch and up to 9 bytes if long |
898 | scb. */ | |
252b5132 RH |
899 | char *p; |
900 | int len; | |
901 | int type; | |
902 | ||
903 | if (opcode->bytes[0].contents == 0x01) | |
904 | { | |
905 | type = SCB_F; | |
906 | } | |
907 | else if (opcode->bytes[0].contents == 0x06 | |
908 | || opcode->bytes[0].contents == 0x07) | |
909 | { | |
910 | type = SCB_TST; | |
911 | } | |
912 | else | |
913 | { | |
914 | type = BRANCH; | |
915 | } | |
916 | ||
917 | p = frag_var (rs_machine_dependent, | |
918 | md_relax_table[C (type, WORD_DISP)].rlx_length, | |
919 | len = md_relax_table[C (type, BYTE_DISP)].rlx_length, | |
920 | C (type, UNDEF_BYTE_DISP), | |
921 | displacement.X_add_symbol, | |
922 | displacement.X_add_number, | |
923 | 0); | |
924 | ||
925 | p[0] = opcode->bytes[0].contents; | |
926 | if (type != BRANCH) | |
927 | { | |
928 | p[1] = opcode->bytes[1].contents | rs; | |
929 | } | |
930 | } | |
931 | ||
3dd5103b NC |
932 | /* Now we know what sort of opcodes it is, let's build the bytes. */ |
933 | ||
252b5132 RH |
934 | static void |
935 | build_bytes (opcode, operand) | |
936 | h8500_opcode_info *opcode; | |
937 | h8500_operand_info *operand; | |
938 | ||
939 | { | |
940 | int index; | |
941 | ||
942 | if (pcrel8) | |
943 | { | |
944 | pcrel8 = 0; | |
945 | build_relaxable_instruction (opcode, operand); | |
946 | } | |
947 | else | |
948 | { | |
949 | char *output = frag_more (opcode->length); | |
950 | ||
951 | memset (output, 0, opcode->length); | |
952 | for (index = 0; index < opcode->length; index++) | |
953 | { | |
954 | output[index] = opcode->bytes[index].contents; | |
955 | ||
956 | switch (opcode->bytes[index].insert) | |
957 | { | |
958 | default: | |
959 | printf (_("failed for %d\n"), opcode->bytes[index].insert); | |
960 | break; | |
961 | case 0: | |
962 | break; | |
963 | case RN: | |
964 | output[index] |= rn; | |
965 | break; | |
966 | case RD: | |
967 | case RDIND: | |
252b5132 RH |
968 | output[index] |= rd; |
969 | break; | |
970 | case RS: | |
971 | output[index] |= rs; | |
972 | break; | |
973 | case DISP16: | |
974 | insert (output, index, &displacement, R_H8500_IMM16, 0); | |
975 | index++; | |
976 | break; | |
977 | case DISP8: | |
978 | case FPIND_D8: | |
979 | insert (output, index, &displacement, R_H8500_IMM8, 0); | |
980 | break; | |
252b5132 RH |
981 | case IMM16: |
982 | { | |
983 | int p; | |
3dd5103b NC |
984 | |
985 | switch (immediate_inpage) | |
986 | { | |
987 | case 'p': | |
988 | p = R_H8500_HIGH16; | |
989 | break; | |
990 | case 'h': | |
991 | p = R_H8500_HIGH16; | |
992 | break; | |
993 | default: | |
994 | p = R_H8500_IMM16; | |
995 | break; | |
996 | } | |
997 | insert (output, index, &immediate, p, 0); | |
252b5132 | 998 | } |
252b5132 RH |
999 | index++; |
1000 | break; | |
1001 | case RLIST: | |
1002 | case IMM8: | |
1003 | if (immediate_inpage) | |
3dd5103b | 1004 | insert (output, index, &immediate, R_H8500_HIGH8, 0); |
252b5132 | 1005 | else |
3dd5103b | 1006 | insert (output, index, &immediate, R_H8500_IMM8, 0); |
252b5132 RH |
1007 | break; |
1008 | case PCREL16: | |
1009 | insert (output, index, &displacement, R_H8500_PCREL16, 1); | |
1010 | index++; | |
1011 | break; | |
1012 | case PCREL8: | |
1013 | insert (output, index, &displacement, R_H8500_PCREL8, 1); | |
1014 | break; | |
1015 | case IMM4: | |
1016 | output[index] |= check (&immediate, 0, 15); | |
1017 | break; | |
1018 | case CR: | |
252b5132 RH |
1019 | output[index] |= cr; |
1020 | if (cr == 0) | |
3dd5103b | 1021 | output[0] |= 0x8; |
252b5132 | 1022 | else |
3dd5103b | 1023 | output[0] &= ~0x8; |
252b5132 | 1024 | break; |
252b5132 RH |
1025 | case CRB: |
1026 | output[index] |= crb; | |
1027 | output[0] &= ~0x8; | |
1028 | break; | |
1029 | case CRW: | |
1030 | output[index] |= crw; | |
1031 | output[0] |= 0x8; | |
1032 | break; | |
1033 | case ABS24: | |
1034 | insert (output, index, &absolute, R_H8500_IMM24, 0); | |
1035 | index += 2; | |
1036 | break; | |
1037 | case ABS16: | |
1038 | insert (output, index, &absolute, R_H8500_IMM16, 0); | |
1039 | index++; | |
1040 | break; | |
1041 | case ABS8: | |
1042 | insert (output, index, &absolute, R_H8500_IMM8, 0); | |
1043 | break; | |
1044 | case QIM: | |
1045 | switch (immediate.X_add_number) | |
1046 | { | |
1047 | case -2: | |
1048 | output[index] |= 0x5; | |
1049 | break; | |
1050 | case -1: | |
1051 | output[index] |= 0x4; | |
1052 | break; | |
1053 | case 1: | |
1054 | output[index] |= 0; | |
1055 | break; | |
1056 | case 2: | |
1057 | output[index] |= 1; | |
1058 | break; | |
1059 | } | |
1060 | break; | |
1061 | } | |
1062 | } | |
1063 | } | |
1064 | } | |
1065 | ||
3dd5103b NC |
1066 | /* This is the guts of the machine-dependent assembler. STR points to |
1067 | a machine dependent instruction. This function is supposed to emit | |
1068 | the frags/bytes it assembles to. */ | |
252b5132 RH |
1069 | |
1070 | void | |
c0fecd35 AM |
1071 | md_assemble (str) |
1072 | char *str; | |
252b5132 RH |
1073 | { |
1074 | char *op_start; | |
1075 | char *op_end; | |
1076 | h8500_operand_info operand[2]; | |
1077 | h8500_opcode_info *opcode; | |
1078 | h8500_opcode_info *prev_opcode; | |
1079 | char name[11]; | |
1080 | ||
1081 | int nlen = 0; | |
1082 | ||
3dd5103b | 1083 | /* Drop leading whitespace. */ |
252b5132 RH |
1084 | while (*str == ' ') |
1085 | str++; | |
1086 | ||
3dd5103b | 1087 | /* Find the op code end. */ |
252b5132 | 1088 | for (op_start = op_end = str; |
b75c0c92 | 1089 | !is_end_of_line[(unsigned char) *op_end] && *op_end != ' '; |
252b5132 RH |
1090 | op_end++) |
1091 | { | |
1092 | if ( /**op_end != '.' | |
1093 | && *op_end != ':' | |
1094 | && */ nlen < 10) | |
1095 | { | |
1096 | name[nlen++] = *op_end; | |
1097 | } | |
1098 | } | |
1099 | name[nlen] = 0; | |
1100 | ||
1101 | if (op_end == op_start) | |
3dd5103b | 1102 | as_bad (_("can't find opcode ")); |
252b5132 RH |
1103 | |
1104 | opcode = (h8500_opcode_info *) hash_find (opcode_hash_control, name); | |
1105 | ||
1106 | if (opcode == NULL) | |
1107 | { | |
1108 | as_bad (_("unknown opcode")); | |
1109 | return; | |
1110 | } | |
1111 | ||
1112 | get_operands (opcode, op_end, operand); | |
1113 | prev_opcode = opcode; | |
1114 | ||
1115 | opcode = get_specific (opcode, operand); | |
1116 | ||
1117 | if (opcode == 0) | |
1118 | { | |
1119 | /* Couldn't find an opcode which matched the operands */ | |
1120 | char *where = frag_more (2); | |
1121 | ||
1122 | where[0] = 0x0; | |
1123 | where[1] = 0x0; | |
1124 | as_bad (_("invalid operands for opcode")); | |
1125 | return; | |
1126 | } | |
1127 | ||
1128 | build_bytes (opcode, operand); | |
252b5132 RH |
1129 | } |
1130 | ||
1131 | void | |
c0fecd35 AM |
1132 | tc_crawl_symbol_chain (headers) |
1133 | object_headers *headers; | |
252b5132 RH |
1134 | { |
1135 | printf (_("call to tc_crawl_symbol_chain \n")); | |
1136 | } | |
1137 | ||
1138 | symbolS * | |
c0fecd35 AM |
1139 | md_undefined_symbol (name) |
1140 | char *name; | |
252b5132 RH |
1141 | { |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | void | |
c0fecd35 AM |
1146 | tc_headers_hook (headers) |
1147 | object_headers *headers; | |
252b5132 RH |
1148 | { |
1149 | printf (_("call to tc_headers_hook \n")); | |
1150 | } | |
1151 | ||
3dd5103b NC |
1152 | /* Various routines to kill one day. */ |
1153 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
1154 | #define MAX_LITTLENUMS 6 |
1155 | ||
bc0d738a NC |
1156 | /* Turn a string in input_line_pointer into a floating point constant |
1157 | of type type, and store the appropriate bytes in *LITP. The number | |
1158 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
1159 | returned, or NULL on OK. */ | |
1160 | ||
252b5132 RH |
1161 | char * |
1162 | md_atof (type, litP, sizeP) | |
1163 | char type; | |
1164 | char *litP; | |
1165 | int *sizeP; | |
1166 | { | |
1167 | int prec; | |
1168 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1169 | LITTLENUM_TYPE *wordP; | |
1170 | char *t; | |
1171 | char *atof_ieee (); | |
1172 | ||
1173 | switch (type) | |
1174 | { | |
1175 | case 'f': | |
1176 | case 'F': | |
1177 | case 's': | |
1178 | case 'S': | |
1179 | prec = 2; | |
1180 | break; | |
1181 | ||
1182 | case 'd': | |
1183 | case 'D': | |
1184 | case 'r': | |
1185 | case 'R': | |
1186 | prec = 4; | |
1187 | break; | |
1188 | ||
1189 | case 'x': | |
1190 | case 'X': | |
1191 | prec = 6; | |
1192 | break; | |
1193 | ||
1194 | case 'p': | |
1195 | case 'P': | |
1196 | prec = 6; | |
1197 | break; | |
1198 | ||
1199 | default: | |
1200 | *sizeP = 0; | |
1201 | return _("Bad call to MD_ATOF()"); | |
1202 | } | |
1203 | t = atof_ieee (input_line_pointer, type, words); | |
1204 | if (t) | |
1205 | input_line_pointer = t; | |
1206 | ||
1207 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1208 | for (wordP = words; prec--;) | |
1209 | { | |
1210 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1211 | litP += sizeof (LITTLENUM_TYPE); | |
1212 | } | |
1213 | return 0; | |
1214 | } | |
1215 | \f | |
1216 | CONST char *md_shortopts = ""; | |
1217 | struct option md_longopts[] = { | |
1218 | {NULL, no_argument, NULL, 0} | |
1219 | }; | |
3dd5103b | 1220 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
1221 | |
1222 | int | |
1223 | md_parse_option (c, arg) | |
1224 | int c; | |
1225 | char *arg; | |
1226 | { | |
1227 | return 0; | |
1228 | } | |
1229 | ||
1230 | void | |
1231 | md_show_usage (stream) | |
1232 | FILE *stream; | |
1233 | { | |
1234 | } | |
1235 | \f | |
1236 | void | |
1237 | tc_aout_fix_to_chars () | |
1238 | { | |
1239 | printf (_("call to tc_aout_fix_to_chars \n")); | |
1240 | abort (); | |
1241 | } | |
1242 | ||
3dd5103b | 1243 | static void |
252b5132 RH |
1244 | wordify_scb (buffer, disp_size, inst_size) |
1245 | char *buffer; | |
1246 | int *disp_size; | |
1247 | int *inst_size; | |
1248 | { | |
1249 | int rn = buffer[1] & 0x7; | |
1250 | ||
1251 | switch (buffer[0]) | |
1252 | { | |
1253 | case 0x0e: /* BSR */ | |
1254 | case 0x20: | |
1255 | case 0x21: | |
1256 | case 0x22: | |
1257 | case 0x23: | |
1258 | case 0x24: | |
1259 | case 0x25: | |
1260 | case 0x26: | |
1261 | case 0x27: | |
1262 | case 0x28: | |
1263 | case 0x29: | |
1264 | case 0x2a: | |
1265 | case 0x2b: | |
1266 | case 0x2c: | |
1267 | case 0x2d: | |
1268 | case 0x2e: | |
1269 | case 0x2f: | |
1270 | buffer[0] |= 0x10; | |
1271 | buffer[1] = 0; | |
1272 | buffer[2] = 0; | |
1273 | *disp_size = 2; | |
1274 | *inst_size = 1; | |
1275 | return; | |
1276 | default: | |
1277 | abort (); | |
1278 | ||
1279 | case 0x01: | |
1280 | *inst_size = 6; | |
1281 | *disp_size = 2; | |
1282 | break; | |
1283 | case 0x06: | |
1284 | *inst_size = 8; | |
1285 | *disp_size = 2; | |
1286 | ||
1287 | *buffer++ = 0x26; /* bne + 8 */ | |
1288 | *buffer++ = 0x08; | |
1289 | break; | |
1290 | case 0x07: | |
1291 | *inst_size = 8; | |
1292 | *disp_size = 2; | |
1293 | *buffer++ = 0x27; /* bne + 8 */ | |
1294 | *buffer++ = 0x08; | |
1295 | break; | |
1296 | ||
1297 | } | |
1298 | *buffer++ = 0xa8 | rn; /* addq -1,rn */ | |
1299 | *buffer++ = 0x0c; | |
1300 | *buffer++ = 0x04; /* cmp #0xff:8, rn */ | |
1301 | *buffer++ = 0xff; | |
1302 | *buffer++ = 0x70 | rn; | |
1303 | *buffer++ = 0x36; /* bne ... */ | |
1304 | *buffer++ = 0; | |
1305 | *buffer++ = 0; | |
1306 | } | |
1307 | ||
3dd5103b NC |
1308 | /* Called after relaxing, change the frags so they know how big they |
1309 | are. */ | |
1310 | ||
252b5132 RH |
1311 | void |
1312 | md_convert_frag (headers, seg, fragP) | |
1313 | object_headers *headers; | |
1314 | segT seg; | |
1315 | fragS *fragP; | |
1316 | { | |
1317 | int disp_size = 0; | |
1318 | int inst_size = 0; | |
1319 | char *buffer = fragP->fr_fix + fragP->fr_literal; | |
1320 | ||
1321 | switch (fragP->fr_subtype) | |
1322 | { | |
1323 | case C (BRANCH, BYTE_DISP): | |
1324 | disp_size = 1; | |
1325 | inst_size = 1; | |
1326 | break; | |
1327 | ||
1328 | case C (SCB_F, BYTE_DISP): | |
1329 | case C (SCB_TST, BYTE_DISP): | |
1330 | disp_size = 1; | |
1331 | inst_size = 2; | |
1332 | break; | |
1333 | ||
3dd5103b | 1334 | /* Branches to a known 16 bit displacement. */ |
252b5132 | 1335 | |
3dd5103b | 1336 | /* Turn on the 16bit bit. */ |
252b5132 RH |
1337 | case C (BRANCH, WORD_DISP): |
1338 | case C (SCB_F, WORD_DISP): | |
1339 | case C (SCB_TST, WORD_DISP): | |
1340 | wordify_scb (buffer, &disp_size, &inst_size); | |
1341 | break; | |
1342 | ||
1343 | case C (BRANCH, UNDEF_WORD_DISP): | |
1344 | case C (SCB_F, UNDEF_WORD_DISP): | |
1345 | case C (SCB_TST, UNDEF_WORD_DISP): | |
3dd5103b NC |
1346 | /* This tried to be relaxed, but didn't manage it, it now needs |
1347 | a fix. */ | |
252b5132 RH |
1348 | wordify_scb (buffer, &disp_size, &inst_size); |
1349 | ||
1350 | /* Make a reloc */ | |
1351 | fix_new (fragP, | |
1352 | fragP->fr_fix + inst_size, | |
1353 | 4, | |
1354 | fragP->fr_symbol, | |
1355 | fragP->fr_offset, | |
1356 | 0, | |
1357 | R_H8500_PCREL16); | |
1358 | ||
1359 | fragP->fr_fix += disp_size + inst_size; | |
1360 | fragP->fr_var = 0; | |
1361 | return; | |
1362 | break; | |
1363 | default: | |
1364 | abort (); | |
1365 | } | |
1366 | if (inst_size) | |
1367 | { | |
1368 | /* Get the address of the end of the instruction */ | |
1369 | int next_inst = fragP->fr_fix + fragP->fr_address + disp_size + inst_size; | |
1370 | int targ_addr = (S_GET_VALUE (fragP->fr_symbol) + | |
1371 | fragP->fr_offset); | |
1372 | int disp = targ_addr - next_inst; | |
1373 | ||
1374 | md_number_to_chars (buffer + inst_size, disp, disp_size); | |
1375 | fragP->fr_fix += disp_size + inst_size; | |
1376 | fragP->fr_var = 0; | |
1377 | } | |
1378 | } | |
1379 | ||
1380 | valueT | |
1381 | md_section_align (seg, size) | |
1382 | segT seg ; | |
1383 | valueT size; | |
1384 | { | |
3dd5103b | 1385 | return ((size + (1 << section_alignment[(int) seg]) - 1) |
252b5132 RH |
1386 | & (-1 << section_alignment[(int) seg])); |
1387 | ||
1388 | } | |
1389 | ||
1390 | void | |
1391 | md_apply_fix (fixP, val) | |
1392 | fixS *fixP; | |
1393 | long val; | |
1394 | { | |
1395 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
1396 | ||
1397 | if (fixP->fx_r_type == 0) | |
1398 | { | |
1399 | fixP->fx_r_type = fixP->fx_size == 4 ? R_H8500_IMM32 : R_H8500_IMM16; | |
1400 | } | |
1401 | ||
1402 | switch (fixP->fx_r_type) | |
1403 | { | |
1404 | ||
1405 | case R_H8500_IMM8: | |
1406 | case R_H8500_PCREL8: | |
1407 | *buf++ = val; | |
1408 | break; | |
1409 | case R_H8500_IMM16: | |
1410 | case R_H8500_LOW16: | |
1411 | case R_H8500_PCREL16: | |
1412 | *buf++ = (val >> 8); | |
1413 | *buf++ = val; | |
1414 | break; | |
1415 | case R_H8500_HIGH8: | |
1416 | *buf++ = val >> 16; | |
1417 | break; | |
1418 | case R_H8500_HIGH16: | |
1419 | *buf++ = val >> 24; | |
1420 | *buf++ = val >> 16; | |
1421 | break; | |
1422 | case R_H8500_IMM24: | |
1423 | *buf++ = (val >> 16); | |
1424 | *buf++ = (val >> 8); | |
1425 | *buf++ = val; | |
1426 | break; | |
1427 | case R_H8500_IMM32: | |
1428 | *buf++ = (val >> 24); | |
1429 | *buf++ = (val >> 16); | |
1430 | *buf++ = (val >> 8); | |
1431 | *buf++ = val; | |
1432 | break; | |
1433 | default: | |
1434 | abort (); | |
1435 | ||
1436 | } | |
1437 | } | |
1438 | ||
1439 | /* | |
1440 | called just before address relaxation, return the length | |
1441 | by which a fragment must grow to reach it's destination | |
1442 | */ | |
1443 | int | |
1444 | md_estimate_size_before_relax (fragP, segment_type) | |
1445 | register fragS *fragP; | |
1446 | register segT segment_type; | |
1447 | { | |
1448 | int what = GET_WHAT (fragP->fr_subtype); | |
1449 | ||
1450 | switch (fragP->fr_subtype) | |
1451 | { | |
1452 | default: | |
1453 | abort (); | |
1454 | case C (BRANCH, UNDEF_BYTE_DISP): | |
1455 | case C (SCB_F, UNDEF_BYTE_DISP): | |
1456 | case C (SCB_TST, UNDEF_BYTE_DISP): | |
1457 | /* used to be a branch to somewhere which was unknown */ | |
1458 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type) | |
1459 | { | |
1460 | /* Got a symbol and it's defined in this segment, become byte | |
3dd5103b | 1461 | sized - maybe it will fix up. */ |
252b5132 RH |
1462 | fragP->fr_subtype = C (what, BYTE_DISP); |
1463 | fragP->fr_var = md_relax_table[C (what, BYTE_DISP)].rlx_length; | |
1464 | } | |
1465 | else | |
1466 | { | |
3dd5103b NC |
1467 | /* Its got a segment, but its not ours, so it will always be |
1468 | long. */ | |
252b5132 RH |
1469 | fragP->fr_subtype = C (what, UNDEF_WORD_DISP); |
1470 | fragP->fr_var = md_relax_table[C (what, WORD_DISP)].rlx_length; | |
1471 | return md_relax_table[C (what, WORD_DISP)].rlx_length; | |
1472 | } | |
1473 | } | |
1474 | return fragP->fr_var; | |
1475 | } | |
1476 | ||
3dd5103b | 1477 | /* Put number into target byte order. */ |
252b5132 RH |
1478 | |
1479 | void | |
1480 | md_number_to_chars (ptr, use, nbytes) | |
1481 | char *ptr; | |
1482 | valueT use; | |
1483 | int nbytes; | |
1484 | { | |
1485 | number_to_chars_bigendian (ptr, use, nbytes); | |
1486 | } | |
1487 | ||
1488 | long | |
1489 | md_pcrel_from (fixP) | |
1490 | fixS *fixP; | |
1491 | { | |
1492 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
1493 | } | |
1494 | ||
252b5132 RH |
1495 | void |
1496 | tc_coff_symbol_emit_hook (ignore) | |
1497 | symbolS *ignore; | |
1498 | { | |
1499 | } | |
1500 | ||
1501 | short | |
1502 | tc_coff_fix2rtype (fix_ptr) | |
1503 | fixS *fix_ptr; | |
1504 | { | |
1505 | if (fix_ptr->fx_r_type == RELOC_32) | |
1506 | { | |
1507 | /* cons likes to create reloc32's whatever the size of the reloc.. | |
1508 | */ | |
1509 | switch (fix_ptr->fx_size) | |
1510 | { | |
1511 | case 2: | |
1512 | return R_H8500_IMM16; | |
1513 | break; | |
1514 | case 1: | |
1515 | return R_H8500_IMM8; | |
1516 | break; | |
1517 | default: | |
1518 | abort (); | |
1519 | } | |
1520 | } | |
1521 | return fix_ptr->fx_r_type; | |
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 | symbol_ptr = fix_ptr->fx_addsy; | |
1534 | ||
1535 | /* If this relocation is attached to a symbol then it's ok | |
1536 | to output it */ | |
1537 | if (fix_ptr->fx_r_type == RELOC_32) | |
1538 | { | |
1539 | /* cons likes to create reloc32's whatever the size of the reloc.. | |
1540 | */ | |
1541 | switch (fix_ptr->fx_size) | |
1542 | { | |
1543 | case 2: | |
1544 | intr->r_type = R_IMM16; | |
1545 | break; | |
1546 | case 1: | |
1547 | intr->r_type = R_IMM8; | |
1548 | break; | |
1549 | default: | |
1550 | abort (); | |
1551 | } | |
1552 | } | |
1553 | else | |
1554 | { | |
1555 | intr->r_type = fix_ptr->fx_r_type; | |
1556 | } | |
1557 | ||
1558 | intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base; | |
1559 | intr->r_offset = fix_ptr->fx_offset; | |
1560 | ||
1561 | /* Turn the segment of the symbol into an offset. */ | |
1562 | if (symbol_ptr) | |
1563 | { | |
1564 | symbolS *dot; | |
1565 | ||
1566 | dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot; | |
1567 | if (dot) | |
1568 | { | |
3dd5103b NC |
1569 | #if 0 |
1570 | intr->r_offset -= | |
1571 | segment_info[S_GET_SEGMENT (symbol_ptr)].scnhdr.s_paddr; | |
1572 | #endif | |
252b5132 RH |
1573 | intr->r_offset += S_GET_VALUE (symbol_ptr); |
1574 | intr->r_symndx = dot->sy_number; | |
1575 | } | |
1576 | else | |
1577 | { | |
1578 | intr->r_symndx = symbol_ptr->sy_number; | |
1579 | } | |
1580 | ||
1581 | } | |
1582 | else | |
1583 | { | |
1584 | intr->r_symndx = -1; | |
1585 | } | |
1586 | ||
1587 | } | |
1588 | ||
252b5132 RH |
1589 | int |
1590 | start_label (ptr) | |
1591 | char *ptr; | |
1592 | { | |
1593 | /* Check for :s.w */ | |
1594 | if (isalpha (ptr[1]) && ptr[2] == '.') | |
1595 | return 0; | |
1596 | /* Check for :s */ | |
1597 | if (isalpha (ptr[1]) && !isalpha (ptr[2])) | |
1598 | return 0; | |
1599 | return 1; | |
1600 | } | |
1601 | ||
252b5132 RH |
1602 | int |
1603 | tc_coff_sizemachdep (frag) | |
1604 | fragS *frag; | |
1605 | { | |
1606 | return md_relax_table[frag->fr_subtype].rlx_length; | |
1607 | } |