Commit | Line | Data |
---|---|---|
c2dcd04e | 1 | /* tc-h8500.c -- Assemble code for the Renesas H8/500 |
2132e3a3 | 2 | Copyright 1993, 1994, 1995, 1998, 2000, 2001, 2002, 2003, 2005 |
93c2a809 | 3 | Free Software Foundation, Inc. |
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 | |
4b4da160 NC |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
20 | 02110-1301, USA. */ | |
252b5132 | 21 | |
4a4f25cf | 22 | /* Written By Steve Chamberlain <sac@cygnus.com>. */ |
252b5132 RH |
23 | |
24 | #include <stdio.h> | |
25 | #include "as.h" | |
26 | #include "bfd.h" | |
27 | #include "subsegs.h" | |
28 | #define DEFINE_TABLE | |
29 | #define ASSEMBLER_TABLE | |
30 | #include "opcodes/h8500-opc.h" | |
3882b010 | 31 | #include "safe-ctype.h" |
252b5132 | 32 | |
ea1562b3 | 33 | const char comment_chars[] = "!"; |
252b5132 | 34 | const char line_separator_chars[] = ";"; |
ea1562b3 | 35 | const char line_comment_chars[] = "!#"; |
252b5132 RH |
36 | |
37 | /* This table describes all the machine specific pseudo-ops the assembler | |
38 | has to support. The fields are: | |
39 | pseudo-op name without dot | |
40 | function to call to execute this pseudo-op | |
ea1562b3 | 41 | Integer arg to pass to the function. */ |
252b5132 | 42 | |
252b5132 RH |
43 | const pseudo_typeS md_pseudo_table[] = |
44 | { | |
45 | {"int", cons, 2}, | |
46 | {"data.b", cons, 1}, | |
47 | {"data.w", cons, 2}, | |
48 | {"data.l", cons, 4}, | |
49 | {"form", listing_psize, 0}, | |
50 | {"heading", listing_title, 0}, | |
51 | {"import", s_ignore, 0}, | |
52 | {"page", listing_eject, 0}, | |
53 | {"program", s_ignore, 0}, | |
54 | {0, 0, 0} | |
55 | }; | |
56 | ||
57 | const int md_reloc_size; | |
58 | ||
59 | const char EXP_CHARS[] = "eE"; | |
60 | ||
ea1562b3 NC |
61 | /* Chars that mean this number is a floating point constant. |
62 | As in 0f12.456 | |
63 | or 0d1.2345e12. */ | |
252b5132 RH |
64 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; |
65 | ||
ea1562b3 NC |
66 | #define C(a,b) ENCODE_RELAX(a, b) |
67 | #define ENCODE_RELAX(what, length) (((what) << 2) + (length)) | |
252b5132 | 68 | |
ea1562b3 | 69 | #define GET_WHAT(x) ((x >> 2)) |
252b5132 | 70 | |
ea1562b3 NC |
71 | #define BYTE_DISP 1 |
72 | #define WORD_DISP 2 | |
252b5132 RH |
73 | #define UNDEF_BYTE_DISP 0 |
74 | #define UNDEF_WORD_DISP 3 | |
75 | ||
ea1562b3 NC |
76 | #define BRANCH 1 |
77 | #define SCB_F 2 | |
78 | #define SCB_TST 3 | |
79 | #define END 4 | |
252b5132 | 80 | |
ea1562b3 NC |
81 | #define BYTE_F 127 |
82 | #define BYTE_B -126 | |
83 | #define WORD_F 32767 | |
84 | #define WORD_B 32768 | |
252b5132 | 85 | |
ea1562b3 NC |
86 | relax_typeS md_relax_table[C (END, 0)] = |
87 | { | |
e66457fb AM |
88 | { 0, 0, 0, 0 }, |
89 | { 0, 0, 0, 0 }, | |
90 | { 0, 0, 0, 0 }, | |
91 | { 0, 0, 0, 0 }, | |
92 | ||
93 | /* BRANCH */ | |
94 | { 0, 0, 0, 0 }, | |
95 | { BYTE_F, BYTE_B, 2, C (BRANCH, WORD_DISP) }, | |
96 | { WORD_F, WORD_B, 3, 0 }, | |
97 | { 0, 0, 3, 0 }, | |
98 | ||
99 | /* SCB_F */ | |
100 | { 0, 0, 0, 0 }, | |
101 | { BYTE_F, BYTE_B, 3, C (SCB_F, WORD_DISP) }, | |
102 | { WORD_F, WORD_B, 8, 0 }, | |
103 | { 0, 0, 8, 0 }, | |
104 | ||
105 | /* SCB_TST */ | |
106 | { 0, 0, 0, 0 }, | |
107 | { BYTE_F, BYTE_B, 3, C (SCB_TST, WORD_DISP) }, | |
108 | { WORD_F, WORD_B, 10, 0 }, | |
109 | { 0, 0, 10, 0 } | |
110 | ||
111 | }; | |
252b5132 | 112 | |
ea1562b3 | 113 | static struct hash_control *opcode_hash_control; /* Opcode mnemonics. */ |
252b5132 | 114 | |
ea1562b3 NC |
115 | /* This function is called once, at assembler startup time. This should |
116 | set up all the tables, etc. that the MD part of the assembler needs. */ | |
252b5132 RH |
117 | |
118 | void | |
ea1562b3 | 119 | md_begin (void) |
252b5132 | 120 | { |
45e85b87 | 121 | const h8500_opcode_info *opcode; |
252b5132 RH |
122 | char prev_buffer[100]; |
123 | int idx = 0; | |
252b5132 RH |
124 | |
125 | opcode_hash_control = hash_new (); | |
126 | prev_buffer[0] = 0; | |
127 | ||
ea1562b3 | 128 | /* Insert unique names into hash table. */ |
252b5132 RH |
129 | for (opcode = h8500_table; opcode->name; opcode++) |
130 | { | |
131 | if (idx != opcode->idx) | |
132 | { | |
133 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
134 | idx++; | |
135 | } | |
136 | } | |
252b5132 RH |
137 | } |
138 | ||
ea1562b3 NC |
139 | static int rn; /* Register number used by RN. */ |
140 | static int rs; /* Register number used by RS. */ | |
141 | static int rd; /* Register number used by RD. */ | |
142 | static int crb; /* Byte size cr. */ | |
143 | static int crw; /* Word sized cr. */ | |
144 | static int cr; /* Unknown size cr. */ | |
252b5132 | 145 | |
ea1562b3 | 146 | static expressionS displacement;/* Displacement expression. */ |
252b5132 | 147 | static int immediate_inpage; |
ea1562b3 NC |
148 | static expressionS immediate; /* Immediate expression. */ |
149 | static expressionS absolute; /* Absolute expression. */ | |
252b5132 RH |
150 | |
151 | typedef struct | |
152 | { | |
153 | int type; | |
2132e3a3 | 154 | unsigned int reg; |
252b5132 RH |
155 | expressionS exp; |
156 | int page; | |
157 | } | |
158 | ||
159 | h8500_operand_info; | |
160 | ||
bc0d738a NC |
161 | /* Try to parse a reg name. Return the number of chars consumed. */ |
162 | ||
ea1562b3 | 163 | static int parse_reg (char *, int *, unsigned int *); |
45e85b87 | 164 | |
252b5132 | 165 | static int |
ea1562b3 | 166 | parse_reg (char *src, int *mode, unsigned int *reg) |
252b5132 RH |
167 | { |
168 | char *end; | |
169 | int len; | |
170 | ||
171 | /* Cribbed from get_symbol_end(). */ | |
172 | if (!is_name_beginner (*src) || *src == '\001') | |
173 | return 0; | |
3dd5103b | 174 | end = src + 1; |
252b5132 RH |
175 | while (is_part_of_name (*end) || *end == '\001') |
176 | end++; | |
177 | len = end - src; | |
178 | ||
179 | if (len == 2 && src[0] == 'r') | |
180 | { | |
181 | if (src[1] >= '0' && src[1] <= '7') | |
182 | { | |
183 | *mode = RN; | |
184 | *reg = (src[1] - '0'); | |
185 | return len; | |
186 | } | |
187 | } | |
188 | if (len == 2 && src[0] == 's' && src[1] == 'p') | |
189 | { | |
190 | *mode = RN; | |
191 | *reg = 7; | |
192 | return len; | |
193 | } | |
194 | if (len == 3 && src[0] == 'c' && src[1] == 'c' && src[2] == 'r') | |
195 | { | |
196 | *mode = CRB; | |
197 | *reg = 1; | |
198 | return len; | |
199 | } | |
200 | if (len == 2 && src[0] == 's' && src[1] == 'r') | |
201 | { | |
202 | *mode = CRW; | |
203 | *reg = 0; | |
204 | return len; | |
205 | } | |
206 | if (len == 2 && src[0] == 'b' && src[1] == 'r') | |
207 | { | |
208 | *mode = CRB; | |
209 | *reg = 3; | |
210 | return len; | |
211 | } | |
212 | if (len == 2 && src[0] == 'e' && src[1] == 'p') | |
213 | { | |
214 | *mode = CRB; | |
215 | *reg = 4; | |
216 | return len; | |
217 | } | |
218 | if (len == 2 && src[0] == 'd' && src[1] == 'p') | |
219 | { | |
220 | *mode = CRB; | |
221 | *reg = 5; | |
222 | return len; | |
223 | } | |
224 | if (len == 2 && src[0] == 't' && src[1] == 'p') | |
225 | { | |
226 | *mode = CRB; | |
227 | *reg = 7; | |
228 | return len; | |
229 | } | |
230 | if (len == 2 && src[0] == 'f' && src[1] == 'p') | |
231 | { | |
232 | *mode = RN; | |
233 | *reg = 6; | |
234 | return len; | |
235 | } | |
236 | return 0; | |
237 | } | |
238 | ||
3dd5103b | 239 | static char * |
ea1562b3 | 240 | parse_exp (char *s, expressionS *op, int *page) |
252b5132 RH |
241 | { |
242 | char *save; | |
243 | char *new; | |
244 | ||
245 | save = input_line_pointer; | |
246 | ||
247 | *page = 0; | |
248 | if (s[0] == '%') | |
249 | { | |
250 | if (s[1] == 'p' && s[2] == 'a' && s[3] == 'g' && s[4] == 'e') | |
251 | { | |
252 | s += 5; | |
253 | *page = 'p'; | |
254 | } | |
255 | if (s[1] == 'h' && s[2] == 'i' && s[3] == '1' && s[4] == '6') | |
256 | { | |
257 | s += 5; | |
258 | *page = 'h'; | |
259 | } | |
260 | else if (s[1] == 'o' && s[2] == 'f' && s[3] == 'f') | |
261 | { | |
262 | s += 4; | |
263 | *page = 'o'; | |
264 | } | |
265 | } | |
266 | ||
267 | input_line_pointer = s; | |
268 | ||
269 | expression (op); | |
270 | if (op->X_op == O_absent) | |
271 | as_bad (_("missing operand")); | |
272 | new = input_line_pointer; | |
273 | input_line_pointer = save; | |
274 | return new; | |
275 | } | |
276 | ||
277 | typedef enum | |
ea1562b3 NC |
278 | { |
279 | exp_signed, exp_unsigned, exp_sandu | |
280 | } sign_type; | |
45e85b87 | 281 | |
252b5132 | 282 | static char * |
ea1562b3 NC |
283 | skip_colonthing (sign_type sign, |
284 | char *ptr, | |
285 | h8500_operand_info *exp, | |
286 | int def, | |
287 | int size8, | |
288 | int size16, | |
289 | int size24) | |
252b5132 RH |
290 | { |
291 | ptr = parse_exp (ptr, &exp->exp, &exp->page); | |
292 | if (*ptr == ':') | |
293 | { | |
294 | ptr++; | |
295 | if (*ptr == '8') | |
296 | { | |
297 | ptr++; | |
298 | exp->type = size8; | |
299 | } | |
45e85b87 | 300 | else if (ptr[0] == '1' && ptr[1] == '6') |
252b5132 RH |
301 | { |
302 | ptr += 2; | |
303 | exp->type = size16; | |
304 | } | |
45e85b87 | 305 | else if (ptr[0] == '2' && ptr[1] == '4') |
252b5132 RH |
306 | { |
307 | if (!size24) | |
308 | { | |
309 | as_bad (_(":24 not valid for this opcode")); | |
310 | } | |
311 | ptr += 2; | |
312 | exp->type = size24; | |
313 | } | |
314 | else | |
315 | { | |
316 | as_bad (_("expect :8,:16 or :24")); | |
317 | exp->type = size16; | |
318 | } | |
319 | } | |
320 | else | |
321 | { | |
322 | if (exp->page == 'p') | |
ea1562b3 | 323 | exp->type = IMM8; |
252b5132 | 324 | else if (exp->page == 'h') |
ea1562b3 | 325 | exp->type = IMM16; |
252b5132 RH |
326 | else |
327 | { | |
ea1562b3 | 328 | /* Let's work out the size from the context. */ |
252b5132 | 329 | int n = exp->exp.X_add_number; |
ea1562b3 | 330 | |
252b5132 RH |
331 | if (size8 |
332 | && exp->exp.X_op == O_constant | |
333 | && ((sign == exp_signed && (n >= -128 && n <= 127)) | |
334 | || (sign == exp_unsigned && (n >= 0 && (n <= 255))) | |
335 | || (sign == exp_sandu && (n >= -128 && (n <= 255))))) | |
ea1562b3 | 336 | exp->type = size8; |
252b5132 | 337 | else |
ea1562b3 | 338 | exp->type = def; |
252b5132 RH |
339 | } |
340 | } | |
341 | return ptr; | |
342 | } | |
343 | ||
344 | static int | |
ea1562b3 | 345 | parse_reglist (char *src, h8500_operand_info *op) |
252b5132 RH |
346 | { |
347 | int mode; | |
2132e3a3 | 348 | unsigned int rn; |
252b5132 | 349 | int mask = 0; |
2132e3a3 | 350 | unsigned int rm; |
ea1562b3 | 351 | int idx = 1; |
252b5132 | 352 | |
ea1562b3 | 353 | /* Skip (. */ |
252b5132 RH |
354 | while (src[idx] && src[idx] != ')') |
355 | { | |
356 | int done = parse_reg (src + idx, &mode, &rn); | |
357 | ||
358 | if (done) | |
359 | { | |
360 | idx += done; | |
361 | mask |= 1 << rn; | |
362 | } | |
363 | else | |
364 | { | |
365 | as_bad (_("syntax error in reg list")); | |
366 | return 0; | |
367 | } | |
ea1562b3 | 368 | |
252b5132 RH |
369 | if (src[idx] == '-') |
370 | { | |
371 | idx++; | |
372 | done = parse_reg (src + idx, &mode, &rm); | |
373 | if (done) | |
374 | { | |
375 | idx += done; | |
376 | while (rn <= rm) | |
377 | { | |
378 | mask |= 1 << rn; | |
379 | rn++; | |
380 | } | |
381 | } | |
382 | else | |
ea1562b3 | 383 | as_bad (_("missing final register in range")); |
252b5132 | 384 | } |
ea1562b3 | 385 | |
252b5132 RH |
386 | if (src[idx] == ',') |
387 | idx++; | |
388 | } | |
389 | idx++; | |
390 | op->exp.X_add_symbol = 0; | |
391 | op->exp.X_op_symbol = 0; | |
392 | op->exp.X_add_number = mask; | |
393 | op->exp.X_op = O_constant; | |
394 | op->exp.X_unsigned = 1; | |
395 | op->type = IMM8; | |
396 | return idx; | |
252b5132 RH |
397 | } |
398 | ||
399 | /* The many forms of operand: | |
400 | ||
401 | Rn Register direct | |
402 | @Rn Register indirect | |
403 | @(disp[:size], Rn) Register indirect with displacement | |
404 | @Rn+ | |
405 | @-Rn | |
406 | @aa[:size] absolute | |
ea1562b3 | 407 | #xx[:size] immediate data. */ |
45e85b87 | 408 | |
252b5132 | 409 | static void |
ea1562b3 NC |
410 | get_operand (char **ptr, |
411 | h8500_operand_info *op, | |
412 | char ispage) | |
252b5132 RH |
413 | { |
414 | char *src = *ptr; | |
415 | int mode; | |
416 | unsigned int num; | |
417 | unsigned int len; | |
ea1562b3 | 418 | |
252b5132 RH |
419 | op->page = 0; |
420 | if (src[0] == '(' && src[1] == 'r') | |
421 | { | |
422 | /* This is a register list */ | |
423 | *ptr = src + parse_reglist (src, op); | |
424 | return; | |
425 | } | |
426 | ||
427 | len = parse_reg (src, &op->type, &op->reg); | |
428 | ||
429 | if (len) | |
430 | { | |
431 | *ptr = src + len; | |
432 | return; | |
433 | } | |
434 | ||
435 | if (*src == '@') | |
436 | { | |
437 | src++; | |
438 | if (*src == '-') | |
439 | { | |
440 | src++; | |
441 | len = parse_reg (src, &mode, &num); | |
442 | if (len == 0) | |
443 | { | |
444 | /* Oops, not a reg after all, must be ordinary exp */ | |
445 | src--; | |
446 | /* must be a symbol */ | |
447 | *ptr = skip_colonthing (exp_unsigned, src, | |
448 | op, ABS16, ABS8, ABS16, ABS24); | |
449 | return; | |
450 | } | |
451 | ||
452 | op->type = RNDEC; | |
453 | op->reg = num; | |
454 | *ptr = src + len; | |
455 | return; | |
456 | } | |
457 | if (*src == '(') | |
458 | { | |
459 | /* Disp */ | |
460 | src++; | |
461 | ||
3dd5103b | 462 | src = skip_colonthing (exp_signed, src, |
252b5132 RH |
463 | op, RNIND_D16, RNIND_D8, RNIND_D16, 0); |
464 | ||
465 | if (*src != ',') | |
466 | { | |
467 | as_bad (_("expected @(exp, Rn)")); | |
468 | return; | |
469 | } | |
470 | src++; | |
471 | len = parse_reg (src, &mode, &op->reg); | |
472 | if (len == 0 || mode != RN) | |
473 | { | |
474 | as_bad (_("expected @(exp, Rn)")); | |
475 | return; | |
476 | } | |
477 | src += len; | |
478 | if (*src != ')') | |
479 | { | |
480 | as_bad (_("expected @(exp, Rn)")); | |
481 | return; | |
482 | } | |
483 | *ptr = src + 1; | |
484 | return; | |
485 | } | |
486 | len = parse_reg (src, &mode, &num); | |
487 | ||
488 | if (len) | |
489 | { | |
490 | src += len; | |
491 | if (*src == '+') | |
492 | { | |
493 | src++; | |
494 | if (mode != RN) | |
495 | { | |
496 | as_bad (_("@Rn+ needs word register")); | |
497 | return; | |
498 | } | |
499 | op->type = RNINC; | |
500 | op->reg = num; | |
501 | *ptr = src; | |
502 | return; | |
503 | } | |
504 | if (mode != RN) | |
505 | { | |
506 | as_bad (_("@Rn needs word register")); | |
507 | return; | |
508 | } | |
509 | op->type = RNIND; | |
510 | op->reg = num; | |
511 | *ptr = src; | |
512 | return; | |
513 | } | |
514 | else | |
515 | { | |
516 | /* must be a symbol */ | |
517 | *ptr = | |
518 | skip_colonthing (exp_unsigned, src, op, | |
519 | ispage ? ABS24 : ABS16, ABS8, ABS16, ABS24); | |
520 | return; | |
521 | } | |
522 | } | |
523 | ||
524 | if (*src == '#') | |
525 | { | |
526 | src++; | |
527 | *ptr = skip_colonthing (exp_sandu, src, op, IMM16, IMM8, IMM16, ABS24); | |
528 | return; | |
529 | } | |
530 | else | |
ea1562b3 NC |
531 | *ptr = skip_colonthing (exp_signed, src, op, |
532 | ispage ? ABS24 : PCREL8, PCREL8, PCREL16, ABS24); | |
252b5132 RH |
533 | } |
534 | ||
3dd5103b | 535 | static char * |
ea1562b3 NC |
536 | get_operands (h8500_opcode_info *info, |
537 | char *args, | |
538 | h8500_operand_info *operand) | |
252b5132 RH |
539 | { |
540 | char *ptr = args; | |
541 | ||
542 | switch (info->nargs) | |
543 | { | |
544 | case 0: | |
545 | operand[0].type = 0; | |
546 | operand[1].type = 0; | |
547 | break; | |
548 | ||
549 | case 1: | |
550 | ptr++; | |
551 | get_operand (&ptr, operand + 0, info->name[0] == 'p'); | |
552 | operand[1].type = 0; | |
553 | break; | |
554 | ||
555 | case 2: | |
556 | ptr++; | |
557 | get_operand (&ptr, operand + 0, 0); | |
558 | if (*ptr == ',') | |
559 | ptr++; | |
560 | get_operand (&ptr, operand + 1, 0); | |
561 | break; | |
562 | ||
563 | default: | |
564 | abort (); | |
565 | } | |
566 | ||
567 | return ptr; | |
568 | } | |
569 | ||
570 | /* Passed a pointer to a list of opcodes which use different | |
571 | addressing modes, return the opcode which matches the opcodes | |
3dd5103b | 572 | provided. */ |
252b5132 | 573 | |
ea1562b3 | 574 | int pcrel8; /* Set when we've seen a pcrel operand. */ |
45e85b87 | 575 | |
3dd5103b | 576 | static h8500_opcode_info * |
ea1562b3 NC |
577 | get_specific (h8500_opcode_info *opcode, |
578 | h8500_operand_info *operands) | |
252b5132 RH |
579 | { |
580 | h8500_opcode_info *this_try = opcode; | |
581 | int found = 0; | |
582 | unsigned int noperands = opcode->nargs; | |
45e85b87 | 583 | int this_index = opcode->idx; |
252b5132 RH |
584 | |
585 | while (this_index == opcode->idx && !found) | |
586 | { | |
587 | unsigned int i; | |
588 | ||
589 | this_try = opcode++; | |
590 | ||
ea1562b3 NC |
591 | /* Look at both operands needed by the opcodes and provided by |
592 | the user. */ | |
252b5132 RH |
593 | for (i = 0; i < noperands; i++) |
594 | { | |
595 | h8500_operand_info *user = operands + i; | |
596 | ||
597 | switch (this_try->arg_type[i]) | |
598 | { | |
599 | case FPIND_D8: | |
ea1562b3 | 600 | /* Opcode needs (disp:8,fp). */ |
252b5132 RH |
601 | if (user->type == RNIND_D8 && user->reg == 6) |
602 | { | |
603 | displacement = user->exp; | |
604 | continue; | |
605 | } | |
606 | break; | |
607 | case RDIND_D16: | |
608 | if (user->type == RNIND_D16) | |
609 | { | |
610 | displacement = user->exp; | |
611 | rd = user->reg; | |
612 | continue; | |
613 | } | |
614 | break; | |
615 | case RDIND_D8: | |
616 | if (user->type == RNIND_D8) | |
617 | { | |
618 | displacement = user->exp; | |
619 | rd = user->reg; | |
620 | continue; | |
621 | } | |
622 | break; | |
623 | case RNIND_D16: | |
624 | case RNIND_D8: | |
625 | if (user->type == this_try->arg_type[i]) | |
626 | { | |
627 | displacement = user->exp; | |
628 | rn = user->reg; | |
629 | continue; | |
630 | } | |
631 | break; | |
632 | ||
633 | case SPDEC: | |
634 | if (user->type == RNDEC && user->reg == 7) | |
ea1562b3 | 635 | continue; |
252b5132 | 636 | break; |
ea1562b3 | 637 | |
252b5132 RH |
638 | case SPINC: |
639 | if (user->type == RNINC && user->reg == 7) | |
ea1562b3 | 640 | continue; |
252b5132 | 641 | break; |
ea1562b3 | 642 | |
252b5132 RH |
643 | case ABS16: |
644 | if (user->type == ABS16) | |
645 | { | |
646 | absolute = user->exp; | |
647 | continue; | |
648 | } | |
649 | break; | |
650 | case ABS8: | |
651 | if (user->type == ABS8) | |
652 | { | |
653 | absolute = user->exp; | |
654 | continue; | |
655 | } | |
656 | break; | |
657 | case ABS24: | |
658 | if (user->type == ABS24) | |
659 | { | |
660 | absolute = user->exp; | |
661 | continue; | |
662 | } | |
663 | break; | |
664 | ||
665 | case CRB: | |
666 | if ((user->type == CRB || user->type == CR) && user->reg != 0) | |
667 | { | |
668 | crb = user->reg; | |
669 | continue; | |
670 | } | |
671 | break; | |
672 | case CRW: | |
673 | if ((user->type == CRW || user->type == CR) && user->reg == 0) | |
674 | { | |
675 | crw = user->reg; | |
676 | continue; | |
677 | } | |
678 | break; | |
679 | case DISP16: | |
680 | if (user->type == DISP16) | |
681 | { | |
682 | displacement = user->exp; | |
683 | continue; | |
684 | } | |
685 | break; | |
686 | case DISP8: | |
687 | if (user->type == DISP8) | |
688 | { | |
689 | displacement = user->exp; | |
690 | continue; | |
691 | } | |
692 | break; | |
693 | case FP: | |
694 | if (user->type == RN && user->reg == 6) | |
ea1562b3 | 695 | continue; |
252b5132 | 696 | break; |
ea1562b3 | 697 | |
252b5132 RH |
698 | case PCREL16: |
699 | if (user->type == PCREL16) | |
700 | { | |
701 | displacement = user->exp; | |
702 | continue; | |
703 | } | |
704 | break; | |
705 | case PCREL8: | |
706 | if (user->type == PCREL8) | |
707 | { | |
708 | displacement = user->exp; | |
709 | pcrel8 = 1; | |
710 | continue; | |
711 | } | |
712 | break; | |
713 | ||
714 | case IMM16: | |
715 | if (user->type == IMM16 | |
716 | || user->type == IMM8) | |
717 | { | |
718 | immediate_inpage = user->page; | |
719 | immediate = user->exp; | |
720 | continue; | |
721 | } | |
722 | break; | |
723 | case RLIST: | |
724 | case IMM8: | |
725 | if (user->type == IMM8) | |
726 | { | |
727 | immediate_inpage = user->page; | |
728 | immediate = user->exp; | |
729 | continue; | |
730 | } | |
731 | break; | |
732 | case IMM4: | |
733 | if (user->type == IMM8) | |
734 | { | |
735 | immediate_inpage = user->page; | |
736 | immediate = user->exp; | |
737 | continue; | |
738 | } | |
739 | break; | |
740 | case QIM: | |
741 | if (user->type == IMM8 | |
742 | && user->exp.X_op == O_constant | |
ea1562b3 | 743 | && (user->exp.X_add_number == -2 |
252b5132 RH |
744 | || user->exp.X_add_number == -1 |
745 | || user->exp.X_add_number == 1 | |
746 | || user->exp.X_add_number == 2)) | |
747 | { | |
748 | immediate_inpage = user->page; | |
749 | immediate = user->exp; | |
750 | continue; | |
751 | } | |
752 | break; | |
753 | case RD: | |
754 | if (user->type == RN) | |
755 | { | |
756 | rd = user->reg; | |
757 | continue; | |
758 | } | |
759 | break; | |
760 | case RS: | |
761 | if (user->type == RN) | |
762 | { | |
763 | rs = user->reg; | |
764 | continue; | |
765 | } | |
766 | break; | |
767 | case RDIND: | |
768 | if (user->type == RNIND) | |
769 | { | |
770 | rd = user->reg; | |
771 | continue; | |
772 | ||
773 | } | |
774 | break; | |
775 | case RNINC: | |
776 | case RNIND: | |
777 | case RNDEC: | |
778 | case RN: | |
252b5132 RH |
779 | if (user->type == this_try->arg_type[i]) |
780 | { | |
781 | rn = user->reg; | |
782 | continue; | |
783 | } | |
784 | break; | |
785 | case SP: | |
786 | if (user->type == RN && user->reg == 7) | |
ea1562b3 | 787 | continue; |
252b5132 RH |
788 | break; |
789 | default: | |
790 | printf (_("unhandled %d\n"), this_try->arg_type[i]); | |
791 | break; | |
792 | } | |
793 | ||
ea1562b3 | 794 | /* If we get here this didn't work out. */ |
252b5132 RH |
795 | goto fail; |
796 | } | |
797 | found = 1; | |
798 | fail:; | |
799 | ||
800 | } | |
801 | ||
802 | if (found) | |
803 | return this_try; | |
804 | else | |
805 | return 0; | |
806 | } | |
807 | ||
45e85b87 | 808 | static int |
ea1562b3 NC |
809 | check (expressionS *operand, |
810 | int low, | |
811 | int high) | |
252b5132 RH |
812 | { |
813 | if (operand->X_op != O_constant | |
814 | || operand->X_add_number < low | |
815 | || operand->X_add_number > high) | |
ea1562b3 NC |
816 | as_bad (_("operand must be absolute in range %d..%d"), low, high); |
817 | ||
252b5132 RH |
818 | return operand->X_add_number; |
819 | } | |
ea1562b3 | 820 | |
3dd5103b | 821 | static void |
ea1562b3 | 822 | insert (char *output, int index, expressionS *exp, int reloc, int pcrel) |
252b5132 RH |
823 | { |
824 | fix_new_exp (frag_now, | |
825 | output - frag_now->fr_literal + index, | |
ea1562b3 NC |
826 | 4, /* Always say size is 4, but we know better. */ |
827 | exp, pcrel, reloc); | |
252b5132 RH |
828 | } |
829 | ||
45e85b87 | 830 | static void |
ea1562b3 NC |
831 | build_relaxable_instruction (h8500_opcode_info *opcode, |
832 | h8500_operand_info *operand ATTRIBUTE_UNUSED) | |
252b5132 RH |
833 | { |
834 | /* All relaxable instructions start life as two bytes but can become | |
3dd5103b NC |
835 | three bytes long if a lonely branch and up to 9 bytes if long |
836 | scb. */ | |
252b5132 RH |
837 | char *p; |
838 | int len; | |
839 | int type; | |
840 | ||
841 | if (opcode->bytes[0].contents == 0x01) | |
ea1562b3 | 842 | type = SCB_F; |
252b5132 RH |
843 | else if (opcode->bytes[0].contents == 0x06 |
844 | || opcode->bytes[0].contents == 0x07) | |
ea1562b3 | 845 | type = SCB_TST; |
252b5132 | 846 | else |
ea1562b3 | 847 | type = BRANCH; |
252b5132 RH |
848 | |
849 | p = frag_var (rs_machine_dependent, | |
850 | md_relax_table[C (type, WORD_DISP)].rlx_length, | |
851 | len = md_relax_table[C (type, BYTE_DISP)].rlx_length, | |
852 | C (type, UNDEF_BYTE_DISP), | |
853 | displacement.X_add_symbol, | |
854 | displacement.X_add_number, | |
855 | 0); | |
856 | ||
857 | p[0] = opcode->bytes[0].contents; | |
858 | if (type != BRANCH) | |
ea1562b3 | 859 | p[1] = opcode->bytes[1].contents | rs; |
252b5132 RH |
860 | } |
861 | ||
3dd5103b NC |
862 | /* Now we know what sort of opcodes it is, let's build the bytes. */ |
863 | ||
252b5132 | 864 | static void |
ea1562b3 | 865 | build_bytes (h8500_opcode_info *opcode, h8500_operand_info *operand) |
252b5132 RH |
866 | { |
867 | int index; | |
868 | ||
869 | if (pcrel8) | |
870 | { | |
871 | pcrel8 = 0; | |
872 | build_relaxable_instruction (opcode, operand); | |
873 | } | |
874 | else | |
875 | { | |
876 | char *output = frag_more (opcode->length); | |
877 | ||
878 | memset (output, 0, opcode->length); | |
879 | for (index = 0; index < opcode->length; index++) | |
880 | { | |
881 | output[index] = opcode->bytes[index].contents; | |
882 | ||
883 | switch (opcode->bytes[index].insert) | |
884 | { | |
885 | default: | |
886 | printf (_("failed for %d\n"), opcode->bytes[index].insert); | |
887 | break; | |
888 | case 0: | |
889 | break; | |
890 | case RN: | |
891 | output[index] |= rn; | |
892 | break; | |
893 | case RD: | |
894 | case RDIND: | |
252b5132 RH |
895 | output[index] |= rd; |
896 | break; | |
897 | case RS: | |
898 | output[index] |= rs; | |
899 | break; | |
900 | case DISP16: | |
901 | insert (output, index, &displacement, R_H8500_IMM16, 0); | |
902 | index++; | |
903 | break; | |
904 | case DISP8: | |
905 | case FPIND_D8: | |
906 | insert (output, index, &displacement, R_H8500_IMM8, 0); | |
907 | break; | |
252b5132 RH |
908 | case IMM16: |
909 | { | |
910 | int p; | |
3dd5103b NC |
911 | |
912 | switch (immediate_inpage) | |
913 | { | |
914 | case 'p': | |
915 | p = R_H8500_HIGH16; | |
916 | break; | |
917 | case 'h': | |
918 | p = R_H8500_HIGH16; | |
919 | break; | |
920 | default: | |
921 | p = R_H8500_IMM16; | |
922 | break; | |
923 | } | |
924 | insert (output, index, &immediate, p, 0); | |
252b5132 | 925 | } |
252b5132 RH |
926 | index++; |
927 | break; | |
928 | case RLIST: | |
929 | case IMM8: | |
930 | if (immediate_inpage) | |
3dd5103b | 931 | insert (output, index, &immediate, R_H8500_HIGH8, 0); |
252b5132 | 932 | else |
3dd5103b | 933 | insert (output, index, &immediate, R_H8500_IMM8, 0); |
252b5132 RH |
934 | break; |
935 | case PCREL16: | |
936 | insert (output, index, &displacement, R_H8500_PCREL16, 1); | |
937 | index++; | |
938 | break; | |
939 | case PCREL8: | |
940 | insert (output, index, &displacement, R_H8500_PCREL8, 1); | |
941 | break; | |
942 | case IMM4: | |
943 | output[index] |= check (&immediate, 0, 15); | |
944 | break; | |
945 | case CR: | |
252b5132 RH |
946 | output[index] |= cr; |
947 | if (cr == 0) | |
3dd5103b | 948 | output[0] |= 0x8; |
252b5132 | 949 | else |
3dd5103b | 950 | output[0] &= ~0x8; |
252b5132 | 951 | break; |
252b5132 RH |
952 | case CRB: |
953 | output[index] |= crb; | |
954 | output[0] &= ~0x8; | |
955 | break; | |
956 | case CRW: | |
957 | output[index] |= crw; | |
958 | output[0] |= 0x8; | |
959 | break; | |
960 | case ABS24: | |
961 | insert (output, index, &absolute, R_H8500_IMM24, 0); | |
962 | index += 2; | |
963 | break; | |
964 | case ABS16: | |
965 | insert (output, index, &absolute, R_H8500_IMM16, 0); | |
966 | index++; | |
967 | break; | |
968 | case ABS8: | |
969 | insert (output, index, &absolute, R_H8500_IMM8, 0); | |
970 | break; | |
971 | case QIM: | |
972 | switch (immediate.X_add_number) | |
973 | { | |
974 | case -2: | |
975 | output[index] |= 0x5; | |
976 | break; | |
977 | case -1: | |
978 | output[index] |= 0x4; | |
979 | break; | |
980 | case 1: | |
981 | output[index] |= 0; | |
982 | break; | |
983 | case 2: | |
984 | output[index] |= 1; | |
985 | break; | |
986 | } | |
987 | break; | |
988 | } | |
989 | } | |
990 | } | |
991 | } | |
992 | ||
3dd5103b NC |
993 | /* This is the guts of the machine-dependent assembler. STR points to |
994 | a machine dependent instruction. This function is supposed to emit | |
995 | the frags/bytes it assembles to. */ | |
252b5132 RH |
996 | |
997 | void | |
ea1562b3 | 998 | md_assemble (char *str) |
252b5132 RH |
999 | { |
1000 | char *op_start; | |
1001 | char *op_end; | |
1002 | h8500_operand_info operand[2]; | |
1003 | h8500_opcode_info *opcode; | |
1004 | h8500_opcode_info *prev_opcode; | |
1005 | char name[11]; | |
1006 | ||
1007 | int nlen = 0; | |
1008 | ||
3dd5103b | 1009 | /* Drop leading whitespace. */ |
252b5132 RH |
1010 | while (*str == ' ') |
1011 | str++; | |
1012 | ||
3dd5103b | 1013 | /* Find the op code end. */ |
252b5132 | 1014 | for (op_start = op_end = str; |
b75c0c92 | 1015 | !is_end_of_line[(unsigned char) *op_end] && *op_end != ' '; |
252b5132 | 1016 | op_end++) |
ea1562b3 NC |
1017 | if (nlen < 10) |
1018 | name[nlen++] = *op_end; | |
1019 | ||
252b5132 RH |
1020 | name[nlen] = 0; |
1021 | ||
1022 | if (op_end == op_start) | |
3dd5103b | 1023 | as_bad (_("can't find opcode ")); |
252b5132 RH |
1024 | |
1025 | opcode = (h8500_opcode_info *) hash_find (opcode_hash_control, name); | |
1026 | ||
1027 | if (opcode == NULL) | |
1028 | { | |
1029 | as_bad (_("unknown opcode")); | |
1030 | return; | |
1031 | } | |
1032 | ||
1033 | get_operands (opcode, op_end, operand); | |
1034 | prev_opcode = opcode; | |
1035 | ||
1036 | opcode = get_specific (opcode, operand); | |
1037 | ||
1038 | if (opcode == 0) | |
1039 | { | |
ea1562b3 | 1040 | /* Couldn't find an opcode which matched the operands. */ |
252b5132 RH |
1041 | char *where = frag_more (2); |
1042 | ||
1043 | where[0] = 0x0; | |
1044 | where[1] = 0x0; | |
1045 | as_bad (_("invalid operands for opcode")); | |
1046 | return; | |
1047 | } | |
1048 | ||
1049 | build_bytes (opcode, operand); | |
252b5132 RH |
1050 | } |
1051 | ||
1052 | void | |
ea1562b3 | 1053 | tc_crawl_symbol_chain (object_headers *headers ATTRIBUTE_UNUSED) |
252b5132 RH |
1054 | { |
1055 | printf (_("call to tc_crawl_symbol_chain \n")); | |
1056 | } | |
1057 | ||
1058 | symbolS * | |
ea1562b3 | 1059 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
252b5132 | 1060 | { |
ea1562b3 | 1061 | return NULL; |
252b5132 RH |
1062 | } |
1063 | ||
1064 | void | |
ea1562b3 | 1065 | tc_headers_hook (object_headers *headers ATTRIBUTE_UNUSED) |
252b5132 RH |
1066 | { |
1067 | printf (_("call to tc_headers_hook \n")); | |
1068 | } | |
1069 | ||
3dd5103b NC |
1070 | /* Various routines to kill one day. */ |
1071 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
1072 | #define MAX_LITTLENUMS 6 |
1073 | ||
bc0d738a NC |
1074 | /* Turn a string in input_line_pointer into a floating point constant |
1075 | of type type, and store the appropriate bytes in *LITP. The number | |
1076 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
1077 | returned, or NULL on OK. */ | |
1078 | ||
252b5132 | 1079 | char * |
ea1562b3 | 1080 | md_atof (int type, char *litP, int *sizeP) |
252b5132 RH |
1081 | { |
1082 | int prec; | |
1083 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1084 | LITTLENUM_TYPE *wordP; | |
1085 | char *t; | |
252b5132 RH |
1086 | |
1087 | switch (type) | |
1088 | { | |
1089 | case 'f': | |
1090 | case 'F': | |
1091 | case 's': | |
1092 | case 'S': | |
1093 | prec = 2; | |
1094 | break; | |
1095 | ||
1096 | case 'd': | |
1097 | case 'D': | |
1098 | case 'r': | |
1099 | case 'R': | |
1100 | prec = 4; | |
1101 | break; | |
1102 | ||
1103 | case 'x': | |
1104 | case 'X': | |
1105 | prec = 6; | |
1106 | break; | |
1107 | ||
1108 | case 'p': | |
1109 | case 'P': | |
1110 | prec = 6; | |
1111 | break; | |
1112 | ||
1113 | default: | |
1114 | *sizeP = 0; | |
1115 | return _("Bad call to MD_ATOF()"); | |
1116 | } | |
1117 | t = atof_ieee (input_line_pointer, type, words); | |
1118 | if (t) | |
1119 | input_line_pointer = t; | |
1120 | ||
1121 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1122 | for (wordP = words; prec--;) | |
1123 | { | |
1124 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1125 | litP += sizeof (LITTLENUM_TYPE); | |
1126 | } | |
1127 | return 0; | |
1128 | } | |
1129 | \f | |
5a38dc70 | 1130 | const char *md_shortopts = ""; |
ea1562b3 NC |
1131 | struct option md_longopts[] = |
1132 | { | |
252b5132 RH |
1133 | {NULL, no_argument, NULL, 0} |
1134 | }; | |
3dd5103b | 1135 | size_t md_longopts_size = sizeof (md_longopts); |
252b5132 RH |
1136 | |
1137 | int | |
ea1562b3 | 1138 | md_parse_option (int c ATTRIBUTE_UNUSED, char *arg ATTRIBUTE_UNUSED) |
252b5132 RH |
1139 | { |
1140 | return 0; | |
1141 | } | |
1142 | ||
1143 | void | |
ea1562b3 | 1144 | md_show_usage (FILE *stream ATTRIBUTE_UNUSED) |
252b5132 RH |
1145 | { |
1146 | } | |
1147 | \f | |
3dd5103b | 1148 | static void |
ea1562b3 | 1149 | wordify_scb (char *buffer, int *disp_size, int *inst_size) |
252b5132 RH |
1150 | { |
1151 | int rn = buffer[1] & 0x7; | |
1152 | ||
1153 | switch (buffer[0]) | |
1154 | { | |
1155 | case 0x0e: /* BSR */ | |
1156 | case 0x20: | |
1157 | case 0x21: | |
1158 | case 0x22: | |
1159 | case 0x23: | |
1160 | case 0x24: | |
1161 | case 0x25: | |
1162 | case 0x26: | |
1163 | case 0x27: | |
1164 | case 0x28: | |
1165 | case 0x29: | |
1166 | case 0x2a: | |
1167 | case 0x2b: | |
1168 | case 0x2c: | |
1169 | case 0x2d: | |
1170 | case 0x2e: | |
1171 | case 0x2f: | |
1172 | buffer[0] |= 0x10; | |
1173 | buffer[1] = 0; | |
1174 | buffer[2] = 0; | |
1175 | *disp_size = 2; | |
1176 | *inst_size = 1; | |
1177 | return; | |
1178 | default: | |
1179 | abort (); | |
1180 | ||
1181 | case 0x01: | |
1182 | *inst_size = 6; | |
1183 | *disp_size = 2; | |
1184 | break; | |
1185 | case 0x06: | |
1186 | *inst_size = 8; | |
1187 | *disp_size = 2; | |
1188 | ||
1189 | *buffer++ = 0x26; /* bne + 8 */ | |
1190 | *buffer++ = 0x08; | |
1191 | break; | |
1192 | case 0x07: | |
1193 | *inst_size = 8; | |
1194 | *disp_size = 2; | |
1195 | *buffer++ = 0x27; /* bne + 8 */ | |
1196 | *buffer++ = 0x08; | |
1197 | break; | |
1198 | ||
1199 | } | |
1200 | *buffer++ = 0xa8 | rn; /* addq -1,rn */ | |
1201 | *buffer++ = 0x0c; | |
1202 | *buffer++ = 0x04; /* cmp #0xff:8, rn */ | |
1203 | *buffer++ = 0xff; | |
1204 | *buffer++ = 0x70 | rn; | |
4a4f25cf | 1205 | *buffer++ = 0x36; /* bne ... */ |
252b5132 RH |
1206 | *buffer++ = 0; |
1207 | *buffer++ = 0; | |
1208 | } | |
1209 | ||
3dd5103b NC |
1210 | /* Called after relaxing, change the frags so they know how big they |
1211 | are. */ | |
1212 | ||
252b5132 | 1213 | void |
ea1562b3 NC |
1214 | md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED, |
1215 | segT seg ATTRIBUTE_UNUSED, | |
1216 | fragS *fragP) | |
252b5132 RH |
1217 | { |
1218 | int disp_size = 0; | |
1219 | int inst_size = 0; | |
1220 | char *buffer = fragP->fr_fix + fragP->fr_literal; | |
1221 | ||
1222 | switch (fragP->fr_subtype) | |
1223 | { | |
1224 | case C (BRANCH, BYTE_DISP): | |
1225 | disp_size = 1; | |
1226 | inst_size = 1; | |
1227 | break; | |
1228 | ||
1229 | case C (SCB_F, BYTE_DISP): | |
1230 | case C (SCB_TST, BYTE_DISP): | |
1231 | disp_size = 1; | |
1232 | inst_size = 2; | |
1233 | break; | |
1234 | ||
3dd5103b | 1235 | /* Branches to a known 16 bit displacement. */ |
252b5132 | 1236 | |
3dd5103b | 1237 | /* Turn on the 16bit bit. */ |
252b5132 RH |
1238 | case C (BRANCH, WORD_DISP): |
1239 | case C (SCB_F, WORD_DISP): | |
1240 | case C (SCB_TST, WORD_DISP): | |
1241 | wordify_scb (buffer, &disp_size, &inst_size); | |
1242 | break; | |
1243 | ||
1244 | case C (BRANCH, UNDEF_WORD_DISP): | |
1245 | case C (SCB_F, UNDEF_WORD_DISP): | |
1246 | case C (SCB_TST, UNDEF_WORD_DISP): | |
3dd5103b NC |
1247 | /* This tried to be relaxed, but didn't manage it, it now needs |
1248 | a fix. */ | |
252b5132 RH |
1249 | wordify_scb (buffer, &disp_size, &inst_size); |
1250 | ||
1251 | /* Make a reloc */ | |
1252 | fix_new (fragP, | |
1253 | fragP->fr_fix + inst_size, | |
1254 | 4, | |
1255 | fragP->fr_symbol, | |
1256 | fragP->fr_offset, | |
1257 | 0, | |
1258 | R_H8500_PCREL16); | |
1259 | ||
1260 | fragP->fr_fix += disp_size + inst_size; | |
252b5132 RH |
1261 | return; |
1262 | break; | |
1263 | default: | |
1264 | abort (); | |
1265 | } | |
1266 | if (inst_size) | |
1267 | { | |
ea1562b3 | 1268 | /* Get the address of the end of the instruction. */ |
252b5132 RH |
1269 | int next_inst = fragP->fr_fix + fragP->fr_address + disp_size + inst_size; |
1270 | int targ_addr = (S_GET_VALUE (fragP->fr_symbol) + | |
1271 | fragP->fr_offset); | |
1272 | int disp = targ_addr - next_inst; | |
1273 | ||
1274 | md_number_to_chars (buffer + inst_size, disp, disp_size); | |
1275 | fragP->fr_fix += disp_size + inst_size; | |
252b5132 RH |
1276 | } |
1277 | } | |
1278 | ||
1279 | valueT | |
ea1562b3 | 1280 | md_section_align (segT seg, valueT size) |
252b5132 | 1281 | { |
3dd5103b | 1282 | return ((size + (1 << section_alignment[(int) seg]) - 1) |
252b5132 | 1283 | & (-1 << section_alignment[(int) seg])); |
252b5132 RH |
1284 | } |
1285 | ||
1286 | void | |
ea1562b3 | 1287 | md_apply_fix3 (fixS *fixP, valueT * valP, segT seg ATTRIBUTE_UNUSED) |
252b5132 | 1288 | { |
94f592af | 1289 | long val = * (long *) valP; |
252b5132 RH |
1290 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; |
1291 | ||
1292 | if (fixP->fx_r_type == 0) | |
94f592af | 1293 | fixP->fx_r_type = fixP->fx_size == 4 ? R_H8500_IMM32 : R_H8500_IMM16; |
252b5132 RH |
1294 | |
1295 | switch (fixP->fx_r_type) | |
1296 | { | |
252b5132 RH |
1297 | case R_H8500_IMM8: |
1298 | case R_H8500_PCREL8: | |
1299 | *buf++ = val; | |
1300 | break; | |
1301 | case R_H8500_IMM16: | |
1302 | case R_H8500_LOW16: | |
1303 | case R_H8500_PCREL16: | |
1304 | *buf++ = (val >> 8); | |
1305 | *buf++ = val; | |
1306 | break; | |
1307 | case R_H8500_HIGH8: | |
1308 | *buf++ = val >> 16; | |
1309 | break; | |
1310 | case R_H8500_HIGH16: | |
1311 | *buf++ = val >> 24; | |
1312 | *buf++ = val >> 16; | |
1313 | break; | |
1314 | case R_H8500_IMM24: | |
1315 | *buf++ = (val >> 16); | |
1316 | *buf++ = (val >> 8); | |
1317 | *buf++ = val; | |
1318 | break; | |
1319 | case R_H8500_IMM32: | |
1320 | *buf++ = (val >> 24); | |
1321 | *buf++ = (val >> 16); | |
1322 | *buf++ = (val >> 8); | |
1323 | *buf++ = val; | |
1324 | break; | |
1325 | default: | |
1326 | abort (); | |
252b5132 | 1327 | } |
94f592af NC |
1328 | |
1329 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
1330 | fixP->fx_done = 1; | |
252b5132 RH |
1331 | } |
1332 | ||
94f592af NC |
1333 | /* Called just before address relaxation, return the length |
1334 | by which a fragment must grow to reach it's destination. */ | |
1335 | ||
252b5132 | 1336 | int |
ea1562b3 | 1337 | md_estimate_size_before_relax (fragS *fragP, segT segment_type) |
252b5132 | 1338 | { |
e66457fb | 1339 | int what; |
252b5132 RH |
1340 | |
1341 | switch (fragP->fr_subtype) | |
1342 | { | |
1343 | default: | |
1344 | abort (); | |
93c2a809 | 1345 | |
252b5132 RH |
1346 | case C (BRANCH, UNDEF_BYTE_DISP): |
1347 | case C (SCB_F, UNDEF_BYTE_DISP): | |
1348 | case C (SCB_TST, UNDEF_BYTE_DISP): | |
e66457fb | 1349 | what = GET_WHAT (fragP->fr_subtype); |
ea1562b3 | 1350 | /* Used to be a branch to somewhere which was unknown. */ |
252b5132 RH |
1351 | if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type) |
1352 | { | |
1353 | /* Got a symbol and it's defined in this segment, become byte | |
3dd5103b | 1354 | sized - maybe it will fix up. */ |
252b5132 | 1355 | fragP->fr_subtype = C (what, BYTE_DISP); |
252b5132 RH |
1356 | } |
1357 | else | |
ea1562b3 NC |
1358 | /* Its got a segment, but its not ours, so it will always be |
1359 | long. */ | |
1360 | fragP->fr_subtype = C (what, UNDEF_WORD_DISP); | |
93c2a809 AM |
1361 | break; |
1362 | ||
1363 | case C (BRANCH, BYTE_DISP): | |
e66457fb | 1364 | case C (BRANCH, WORD_DISP): |
93c2a809 AM |
1365 | case C (BRANCH, UNDEF_WORD_DISP): |
1366 | case C (SCB_F, BYTE_DISP): | |
e66457fb | 1367 | case C (SCB_F, WORD_DISP): |
93c2a809 AM |
1368 | case C (SCB_F, UNDEF_WORD_DISP): |
1369 | case C (SCB_TST, BYTE_DISP): | |
e66457fb | 1370 | case C (SCB_TST, WORD_DISP): |
93c2a809 AM |
1371 | case C (SCB_TST, UNDEF_WORD_DISP): |
1372 | /* When relaxing a section for the second time, we don't need to | |
e66457fb | 1373 | do anything besides return the current size. */ |
93c2a809 | 1374 | break; |
252b5132 | 1375 | } |
e66457fb | 1376 | |
606ab118 | 1377 | return md_relax_table[fragP->fr_subtype].rlx_length; |
252b5132 RH |
1378 | } |
1379 | ||
3dd5103b | 1380 | /* Put number into target byte order. */ |
252b5132 RH |
1381 | |
1382 | void | |
ea1562b3 | 1383 | md_number_to_chars (char *ptr, valueT use, int nbytes) |
252b5132 RH |
1384 | { |
1385 | number_to_chars_bigendian (ptr, use, nbytes); | |
1386 | } | |
1387 | ||
1388 | long | |
ea1562b3 | 1389 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
1390 | { |
1391 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
1392 | } | |
1393 | ||
252b5132 | 1394 | void |
ea1562b3 | 1395 | tc_coff_symbol_emit_hook (symbolS *ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
1396 | { |
1397 | } | |
1398 | ||
1399 | short | |
ea1562b3 | 1400 | tc_coff_fix2rtype (fixS *fix_ptr) |
252b5132 RH |
1401 | { |
1402 | if (fix_ptr->fx_r_type == RELOC_32) | |
1403 | { | |
ea1562b3 | 1404 | /* Cons likes to create reloc32's whatever the size of the reloc. */ |
252b5132 RH |
1405 | switch (fix_ptr->fx_size) |
1406 | { | |
1407 | case 2: | |
1408 | return R_H8500_IMM16; | |
1409 | break; | |
1410 | case 1: | |
1411 | return R_H8500_IMM8; | |
1412 | break; | |
1413 | default: | |
1414 | abort (); | |
1415 | } | |
1416 | } | |
1417 | return fix_ptr->fx_r_type; | |
1418 | } | |
1419 | ||
1420 | void | |
ea1562b3 NC |
1421 | tc_reloc_mangle (fixS *fix_ptr, |
1422 | struct internal_reloc *intr, | |
1423 | bfd_vma base) | |
252b5132 RH |
1424 | { |
1425 | symbolS *symbol_ptr; | |
1426 | ||
1427 | symbol_ptr = fix_ptr->fx_addsy; | |
1428 | ||
1429 | /* If this relocation is attached to a symbol then it's ok | |
1430 | to output it */ | |
1431 | if (fix_ptr->fx_r_type == RELOC_32) | |
1432 | { | |
ea1562b3 | 1433 | /* Cons likes to create reloc32's whatever the size of the reloc. */ |
252b5132 RH |
1434 | switch (fix_ptr->fx_size) |
1435 | { | |
1436 | case 2: | |
1437 | intr->r_type = R_IMM16; | |
1438 | break; | |
1439 | case 1: | |
1440 | intr->r_type = R_IMM8; | |
1441 | break; | |
1442 | default: | |
1443 | abort (); | |
1444 | } | |
1445 | } | |
1446 | else | |
ea1562b3 | 1447 | intr->r_type = fix_ptr->fx_r_type; |
252b5132 RH |
1448 | |
1449 | intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base; | |
1450 | intr->r_offset = fix_ptr->fx_offset; | |
1451 | ||
1452 | /* Turn the segment of the symbol into an offset. */ | |
1453 | if (symbol_ptr) | |
1454 | { | |
1455 | symbolS *dot; | |
1456 | ||
1457 | dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot; | |
1458 | if (dot) | |
1459 | { | |
252b5132 RH |
1460 | intr->r_offset += S_GET_VALUE (symbol_ptr); |
1461 | intr->r_symndx = dot->sy_number; | |
1462 | } | |
1463 | else | |
ea1562b3 | 1464 | intr->r_symndx = symbol_ptr->sy_number; |
252b5132 RH |
1465 | } |
1466 | else | |
ea1562b3 | 1467 | intr->r_symndx = -1; |
252b5132 RH |
1468 | } |
1469 | ||
252b5132 | 1470 | int |
ea1562b3 | 1471 | start_label (char *ptr) |
252b5132 RH |
1472 | { |
1473 | /* Check for :s.w */ | |
3882b010 | 1474 | if (ISALPHA (ptr[1]) && ptr[2] == '.') |
252b5132 RH |
1475 | return 0; |
1476 | /* Check for :s */ | |
3882b010 | 1477 | if (ISALPHA (ptr[1]) && !ISALPHA (ptr[2])) |
252b5132 RH |
1478 | return 0; |
1479 | return 1; | |
1480 | } | |
1481 | ||
252b5132 | 1482 | int |
ea1562b3 | 1483 | tc_coff_sizemachdep (fragS *frag) |
252b5132 RH |
1484 | { |
1485 | return md_relax_table[frag->fr_subtype].rlx_length; | |
1486 | } |