Commit | Line | Data |
---|---|---|
c2dcd04e | 1 | /* tc-h8300.c -- Assemble code for the Renesas H8/300 |
cc8a6dd0 | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, |
c2dcd04e | 3 | 2001, 2002, 2003 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 | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
bc0d738a | 22 | /* Written By Steve Chamberlain <sac@cygnus.com>. */ |
252b5132 RH |
23 | |
24 | #include <stdio.h> | |
25 | #include "as.h" | |
26 | #include "subsegs.h" | |
27 | #include "bfd.h" | |
2c8714f2 NC |
28 | |
29 | #ifdef BFD_ASSEMBLER | |
30 | #include "dwarf2dbg.h" | |
31 | #endif | |
32 | ||
252b5132 RH |
33 | #define DEFINE_TABLE |
34 | #define h8_opcodes ops | |
35 | #include "opcode/h8300.h" | |
3882b010 | 36 | #include "safe-ctype.h" |
252b5132 | 37 | |
7e0de7bf JL |
38 | #ifdef OBJ_ELF |
39 | #include "elf/h8.h" | |
7e0de7bf JL |
40 | #endif |
41 | ||
63a0b638 | 42 | const char comment_chars[] = ";"; |
252b5132 | 43 | const char line_comment_chars[] = "#"; |
63a0b638 | 44 | const char line_separator_chars[] = ""; |
252b5132 | 45 | |
3048287a NC |
46 | void cons PARAMS ((int)); |
47 | void sbranch PARAMS ((int)); | |
48 | void h8300hmode PARAMS ((int)); | |
49 | void h8300smode PARAMS ((int)); | |
8d9cd6b1 NC |
50 | void h8300hnmode PARAMS ((int)); |
51 | void h8300snmode PARAMS ((int)); | |
7ee7b84d | 52 | void h8300sxmode PARAMS ((int)); |
3048287a | 53 | static void pint PARAMS ((int)); |
252b5132 RH |
54 | |
55 | int Hmode; | |
56 | int Smode; | |
8d9cd6b1 | 57 | int Nmode; |
7ee7b84d | 58 | int SXmode; |
3048287a | 59 | |
252b5132 RH |
60 | #define PSIZE (Hmode ? L_32 : L_16) |
61 | #define DMODE (L_16) | |
62 | #define DSYMMODE (Hmode ? L_24 : L_16) | |
3048287a | 63 | |
c2dcd04e | 64 | int bsize = L_8; /* Default branch displacement. */ |
252b5132 | 65 | |
a720f7bc KD |
66 | struct h8_instruction |
67 | { | |
68 | int length; | |
69 | int noperands; | |
70 | int idx; | |
71 | int size; | |
72 | const struct h8_opcode *opcode; | |
73 | }; | |
74 | ||
75 | struct h8_instruction *h8_instructions; | |
76 | ||
252b5132 | 77 | void |
3048287a NC |
78 | h8300hmode (arg) |
79 | int arg ATTRIBUTE_UNUSED; | |
252b5132 RH |
80 | { |
81 | Hmode = 1; | |
82 | Smode = 0; | |
83e20b45 JL |
83 | #ifdef BFD_ASSEMBLER |
84 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300h)) | |
85 | as_warn (_("could not set architecture and machine")); | |
86 | #endif | |
252b5132 RH |
87 | } |
88 | ||
89 | void | |
3048287a NC |
90 | h8300smode (arg) |
91 | int arg ATTRIBUTE_UNUSED; | |
252b5132 RH |
92 | { |
93 | Smode = 1; | |
94 | Hmode = 1; | |
83e20b45 JL |
95 | #ifdef BFD_ASSEMBLER |
96 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300s)) | |
97 | as_warn (_("could not set architecture and machine")); | |
98 | #endif | |
252b5132 | 99 | } |
70d6ecf3 | 100 | |
8d9cd6b1 NC |
101 | void |
102 | h8300hnmode (arg) | |
103 | int arg ATTRIBUTE_UNUSED; | |
104 | { | |
105 | Hmode = 1; | |
106 | Smode = 0; | |
107 | Nmode = 1; | |
108 | #ifdef BFD_ASSEMBLER | |
109 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300hn)) | |
110 | as_warn (_("could not set architecture and machine")); | |
111 | #endif | |
112 | } | |
113 | ||
114 | void | |
115 | h8300snmode (arg) | |
116 | int arg ATTRIBUTE_UNUSED; | |
117 | { | |
118 | Smode = 1; | |
119 | Hmode = 1; | |
120 | Nmode = 1; | |
121 | #ifdef BFD_ASSEMBLER | |
122 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300sn)) | |
123 | as_warn (_("could not set architecture and machine")); | |
124 | #endif | |
125 | } | |
126 | ||
7ee7b84d MS |
127 | void |
128 | h8300sxmode (arg) | |
129 | int arg ATTRIBUTE_UNUSED; | |
130 | { | |
131 | Smode = 1; | |
132 | Hmode = 1; | |
133 | SXmode = 1; | |
134 | #ifdef BFD_ASSEMBLER | |
135 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300sx)) | |
136 | as_warn (_("could not set architecture and machine")); | |
137 | #endif | |
138 | } | |
139 | ||
252b5132 RH |
140 | void |
141 | sbranch (size) | |
142 | int size; | |
143 | { | |
144 | bsize = size; | |
145 | } | |
146 | ||
70d6ecf3 | 147 | static void |
3048287a NC |
148 | pint (arg) |
149 | int arg ATTRIBUTE_UNUSED; | |
252b5132 RH |
150 | { |
151 | cons (Hmode ? 4 : 2); | |
152 | } | |
153 | ||
3048287a NC |
154 | /* This table describes all the machine specific pseudo-ops the assembler |
155 | has to support. The fields are: | |
156 | pseudo-op name without dot | |
157 | function to call to execute this pseudo-op | |
158 | Integer arg to pass to the function. */ | |
159 | ||
252b5132 RH |
160 | const pseudo_typeS md_pseudo_table[] = |
161 | { | |
7ee7b84d | 162 | {"h8300h", h8300hmode, 0}, |
8d9cd6b1 | 163 | {"h8300hn", h8300hnmode, 0}, |
7ee7b84d | 164 | {"h8300s", h8300smode, 0}, |
8d9cd6b1 | 165 | {"h8300sn", h8300snmode, 0}, |
7ee7b84d | 166 | {"h8300sx", h8300sxmode, 0}, |
252b5132 RH |
167 | {"sbranch", sbranch, L_8}, |
168 | {"lbranch", sbranch, L_16}, | |
169 | ||
170 | {"int", pint, 0}, | |
171 | {"data.b", cons, 1}, | |
172 | {"data.w", cons, 2}, | |
173 | {"data.l", cons, 4}, | |
174 | {"form", listing_psize, 0}, | |
175 | {"heading", listing_title, 0}, | |
7ee7b84d MS |
176 | {"import", s_ignore, 0}, |
177 | {"page", listing_eject, 0}, | |
252b5132 RH |
178 | {"program", s_ignore, 0}, |
179 | {0, 0, 0} | |
180 | }; | |
181 | ||
182 | const int md_reloc_size; | |
183 | ||
184 | const char EXP_CHARS[] = "eE"; | |
185 | ||
3048287a NC |
186 | /* Chars that mean this number is a floating point constant |
187 | As in 0f12.456 | |
188 | or 0d1.2345e12. */ | |
252b5132 RH |
189 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; |
190 | ||
3048287a | 191 | static struct hash_control *opcode_hash_control; /* Opcode mnemonics. */ |
252b5132 | 192 | |
70d6ecf3 AM |
193 | /* This function is called once, at assembler startup time. This |
194 | should set up all the tables, etc. that the MD part of the assembler | |
195 | needs. */ | |
3048287a | 196 | |
252b5132 RH |
197 | void |
198 | md_begin () | |
199 | { | |
a720f7bc | 200 | unsigned int nopcodes; |
7ee7b84d | 201 | struct h8_opcode *p, *p1; |
a720f7bc | 202 | struct h8_instruction *pi; |
252b5132 RH |
203 | char prev_buffer[100]; |
204 | int idx = 0; | |
205 | ||
83e20b45 JL |
206 | #ifdef BFD_ASSEMBLER |
207 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_h8300, bfd_mach_h8300)) | |
208 | as_warn (_("could not set architecture and machine")); | |
209 | #endif | |
210 | ||
252b5132 RH |
211 | opcode_hash_control = hash_new (); |
212 | prev_buffer[0] = 0; | |
213 | ||
a720f7bc KD |
214 | nopcodes = sizeof (h8_opcodes) / sizeof (struct h8_opcode); |
215 | ||
216 | h8_instructions = (struct h8_instruction *) | |
217 | xmalloc (nopcodes * sizeof (struct h8_instruction)); | |
218 | ||
7ee7b84d MS |
219 | pi = h8_instructions; |
220 | p1 = h8_opcodes; | |
221 | /* We do a minimum amount of sorting on the opcode table; this is to | |
222 | make it easy to describe the mova instructions without unnecessary | |
223 | code duplication. | |
224 | Sorting only takes place inside blocks of instructions of the form | |
225 | X/Y, so for example mova/b, mova/w and mova/l can be intermixed. */ | |
226 | while (p1) | |
252b5132 | 227 | { |
7ee7b84d MS |
228 | struct h8_opcode *first_skipped = 0; |
229 | int len, cmplen = 0; | |
230 | char *src = p1->name; | |
231 | char *dst, *buffer; | |
252b5132 | 232 | |
7ee7b84d MS |
233 | if (p1->name == 0) |
234 | break; | |
235 | /* Strip off any . part when inserting the opcode and only enter | |
236 | unique codes into the hash table. */ | |
237 | dst = buffer = malloc (strlen (src) + 1); | |
252b5132 RH |
238 | while (*src) |
239 | { | |
240 | if (*src == '.') | |
241 | { | |
242 | src++; | |
252b5132 RH |
243 | break; |
244 | } | |
7ee7b84d MS |
245 | if (*src == '/') |
246 | cmplen = src - p1->name + 1; | |
252b5132 RH |
247 | *dst++ = *src++; |
248 | } | |
7ee7b84d MS |
249 | *dst = 0; |
250 | len = dst - buffer; | |
251 | if (cmplen == 0) | |
252 | cmplen = len; | |
253 | hash_insert (opcode_hash_control, buffer, (char *) pi); | |
254 | strcpy (prev_buffer, buffer); | |
255 | idx++; | |
256 | ||
257 | for (p = p1; p->name; p++) | |
252b5132 | 258 | { |
7ee7b84d MS |
259 | /* A negative TIME is used to indicate that we've added this opcode |
260 | already. */ | |
261 | if (p->time == -1) | |
262 | continue; | |
263 | if (strncmp (p->name, buffer, cmplen) != 0 | |
264 | || (p->name[cmplen] != '\0' && p->name[cmplen] != '.' | |
265 | && p->name[cmplen - 1] != '/')) | |
266 | { | |
267 | if (first_skipped == 0) | |
268 | first_skipped = p; | |
269 | break; | |
270 | } | |
271 | if (strncmp (p->name, buffer, len) != 0) | |
272 | { | |
273 | if (first_skipped == 0) | |
274 | first_skipped = p; | |
275 | continue; | |
276 | } | |
277 | ||
278 | p->time = -1; | |
279 | pi->size = p->name[len] == '.' ? p->name[len + 1] : 0; | |
280 | pi->idx = idx; | |
252b5132 | 281 | |
7ee7b84d MS |
282 | /* Find the number of operands. */ |
283 | pi->noperands = 0; | |
284 | while (pi->noperands < 3 && p->args.nib[pi->noperands] != (op_type) E) | |
285 | pi->noperands++; | |
70d6ecf3 | 286 | |
7ee7b84d MS |
287 | /* Find the length of the opcode in bytes. */ |
288 | pi->length = 0; | |
289 | while (p->data.nib[pi->length * 2] != (op_type) E) | |
290 | pi->length++; | |
a720f7bc | 291 | |
7ee7b84d MS |
292 | pi->opcode = p; |
293 | pi++; | |
294 | } | |
295 | p1 = first_skipped; | |
252b5132 RH |
296 | } |
297 | ||
a720f7bc KD |
298 | /* Add entry for the NULL vector terminator. */ |
299 | pi->length = 0; | |
300 | pi->noperands = 0; | |
301 | pi->idx = 0; | |
302 | pi->size = 0; | |
7ee7b84d | 303 | pi->opcode = 0; |
a720f7bc | 304 | |
252b5132 RH |
305 | linkrelax = 1; |
306 | } | |
307 | ||
252b5132 RH |
308 | struct h8_exp |
309 | { | |
310 | char *e_beg; | |
311 | char *e_end; | |
312 | expressionS e_exp; | |
313 | }; | |
70d6ecf3 | 314 | |
252b5132 RH |
315 | struct h8_op |
316 | { | |
317 | op_type mode; | |
318 | unsigned reg; | |
319 | expressionS exp; | |
320 | }; | |
321 | ||
a720f7bc KD |
322 | static void clever_message PARAMS ((const struct h8_instruction *, struct h8_op *)); |
323 | static void build_bytes PARAMS ((const struct h8_instruction *, struct h8_op *)); | |
7ee7b84d | 324 | static void do_a_fix_imm PARAMS ((int, int, struct h8_op *, int)); |
3048287a | 325 | static void check_operand PARAMS ((struct h8_op *, unsigned int, char *)); |
a720f7bc | 326 | static const struct h8_instruction * get_specific PARAMS ((const struct h8_instruction *, struct h8_op *, int)); |
3048287a | 327 | static char * get_operands PARAMS ((unsigned, char *, struct h8_op *)); |
7ee7b84d | 328 | static void get_operand PARAMS ((char **, struct h8_op *, int)); |
3048287a NC |
329 | static char * skip_colonthing PARAMS ((char *, expressionS *, int *)); |
330 | static char * parse_exp PARAMS ((char *, expressionS *)); | |
331 | static int parse_reg PARAMS ((char *, op_type *, unsigned *, int)); | |
332 | char * colonmod24 PARAMS ((struct h8_op *, char *)); | |
333 | ||
7ee7b84d MS |
334 | static int constant_fits_width_p PARAMS ((struct h8_op *, unsigned int)); |
335 | static int constant_fits_size_p PARAMS ((struct h8_op *, int, int)); | |
336 | ||
252b5132 RH |
337 | /* |
338 | parse operands | |
339 | WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp | |
340 | r0l,r0h,..r7l,r7h | |
341 | @WREG | |
342 | @WREG+ | |
343 | @-WREG | |
344 | #const | |
345 | ccr | |
346 | */ | |
347 | ||
bc0d738a NC |
348 | /* Try to parse a reg name. Return the number of chars consumed. */ |
349 | ||
40f09f82 | 350 | static int |
252b5132 RH |
351 | parse_reg (src, mode, reg, direction) |
352 | char *src; | |
353 | op_type *mode; | |
354 | unsigned int *reg; | |
355 | int direction; | |
252b5132 RH |
356 | { |
357 | char *end; | |
358 | int len; | |
359 | ||
70d6ecf3 | 360 | /* Cribbed from get_symbol_end. */ |
252b5132 RH |
361 | if (!is_name_beginner (*src) || *src == '\001') |
362 | return 0; | |
70d6ecf3 | 363 | end = src + 1; |
7ee7b84d | 364 | while ((is_part_of_name (*end) && *end != '.') || *end == '\001') |
252b5132 RH |
365 | end++; |
366 | len = end - src; | |
367 | ||
7ee7b84d | 368 | if (len == 2 && TOLOWER (src[0]) == 's' && TOLOWER (src[1]) == 'p') |
252b5132 RH |
369 | { |
370 | *mode = PSIZE | REG | direction; | |
371 | *reg = 7; | |
372 | return len; | |
373 | } | |
7ee7b84d MS |
374 | if (len == 3 && |
375 | TOLOWER (src[0]) == 'c' && | |
376 | TOLOWER (src[1]) == 'c' && | |
377 | TOLOWER (src[2]) == 'r') | |
252b5132 RH |
378 | { |
379 | *mode = CCR; | |
380 | *reg = 0; | |
381 | return len; | |
382 | } | |
7ee7b84d MS |
383 | if (len == 3 && |
384 | TOLOWER (src[0]) == 'e' && | |
385 | TOLOWER (src[1]) == 'x' && | |
386 | TOLOWER (src[2]) == 'r') | |
252b5132 RH |
387 | { |
388 | *mode = EXR; | |
7ee7b84d MS |
389 | *reg = 1; |
390 | return len; | |
391 | } | |
392 | if (len == 3 && | |
393 | TOLOWER (src[0]) == 'v' && | |
394 | TOLOWER (src[1]) == 'b' && | |
395 | TOLOWER (src[2]) == 'r') | |
396 | { | |
397 | *mode = VBR; | |
398 | *reg = 6; | |
399 | return len; | |
400 | } | |
401 | if (len == 3 && | |
402 | TOLOWER (src[0]) == 's' && | |
403 | TOLOWER (src[1]) == 'b' && | |
404 | TOLOWER (src[2]) == 'r') | |
405 | { | |
406 | *mode = SBR; | |
407 | *reg = 7; | |
252b5132 RH |
408 | return len; |
409 | } | |
7ee7b84d | 410 | if (len == 2 && TOLOWER (src[0]) == 'f' && TOLOWER (src[1]) == 'p') |
252b5132 RH |
411 | { |
412 | *mode = PSIZE | REG | direction; | |
413 | *reg = 6; | |
414 | return len; | |
415 | } | |
7ee7b84d MS |
416 | if (len == 3 && TOLOWER (src[0]) == 'e' && TOLOWER (src[1]) == 'r' && |
417 | src[2] >= '0' && src[2] <= '7') | |
252b5132 RH |
418 | { |
419 | *mode = L_32 | REG | direction; | |
420 | *reg = src[2] - '0'; | |
421 | if (!Hmode) | |
422 | as_warn (_("Reg not valid for H8/300")); | |
423 | return len; | |
424 | } | |
7ee7b84d | 425 | if (len == 2 && TOLOWER (src[0]) == 'e' && src[1] >= '0' && src[1] <= '7') |
252b5132 RH |
426 | { |
427 | *mode = L_16 | REG | direction; | |
428 | *reg = src[1] - '0' + 8; | |
429 | if (!Hmode) | |
430 | as_warn (_("Reg not valid for H8/300")); | |
431 | return len; | |
432 | } | |
433 | ||
7ee7b84d | 434 | if (TOLOWER (src[0]) == 'r') |
252b5132 RH |
435 | { |
436 | if (src[1] >= '0' && src[1] <= '7') | |
437 | { | |
7ee7b84d | 438 | if (len == 3 && TOLOWER (src[2]) == 'l') |
252b5132 RH |
439 | { |
440 | *mode = L_8 | REG | direction; | |
441 | *reg = (src[1] - '0') + 8; | |
442 | return len; | |
443 | } | |
7ee7b84d | 444 | if (len == 3 && TOLOWER (src[2]) == 'h') |
252b5132 RH |
445 | { |
446 | *mode = L_8 | REG | direction; | |
447 | *reg = (src[1] - '0'); | |
448 | return len; | |
449 | } | |
450 | if (len == 2) | |
451 | { | |
452 | *mode = L_16 | REG | direction; | |
453 | *reg = (src[1] - '0'); | |
454 | return len; | |
455 | } | |
456 | } | |
457 | } | |
458 | ||
459 | return 0; | |
460 | } | |
461 | ||
40f09f82 | 462 | static char * |
252b5132 RH |
463 | parse_exp (s, op) |
464 | char *s; | |
70d6ecf3 | 465 | expressionS *op; |
252b5132 RH |
466 | { |
467 | char *save = input_line_pointer; | |
468 | char *new; | |
469 | ||
470 | input_line_pointer = s; | |
471 | expression (op); | |
472 | if (op->X_op == O_absent) | |
473 | as_bad (_("missing operand")); | |
474 | new = input_line_pointer; | |
475 | input_line_pointer = save; | |
476 | return new; | |
477 | } | |
478 | ||
479 | static char * | |
480 | skip_colonthing (ptr, exp, mode) | |
481 | char *ptr; | |
dbbc7809 | 482 | expressionS *exp ATTRIBUTE_UNUSED; |
252b5132 RH |
483 | int *mode; |
484 | { | |
485 | if (*ptr == ':') | |
486 | { | |
487 | ptr++; | |
488 | *mode &= ~SIZE; | |
7ee7b84d MS |
489 | if (ptr[0] == '8' && ! ISDIGIT (ptr[1])) |
490 | *mode |= L_8; | |
491 | else if (ptr[0] == '2' && ! ISDIGIT (ptr[1])) | |
492 | *mode |= L_2; | |
493 | else if (ptr[0] == '3' && ! ISDIGIT (ptr[1])) | |
494 | *mode |= L_3; | |
495 | else if (ptr[0] == '4' && ! ISDIGIT (ptr[1])) | |
496 | *mode |= L_4; | |
497 | else if (ptr[0] == '5' && ! ISDIGIT (ptr[1])) | |
498 | *mode |= L_5; | |
499 | else if (ptr[0] == '2' && ptr[1] == '4') | |
500 | *mode |= L_24; | |
501 | else if (ptr[0] == '3' && ptr[1] == '2') | |
502 | *mode |= L_32; | |
503 | else if (ptr[0] == '1' && ptr[1] == '6') | |
504 | *mode |= L_16; | |
252b5132 | 505 | else |
7ee7b84d MS |
506 | as_bad (_("invalid operand size requested")); |
507 | ||
508 | while (ISDIGIT (*ptr)) | |
509 | ptr++; | |
252b5132 RH |
510 | } |
511 | return ptr; | |
512 | } | |
513 | ||
514 | /* The many forms of operand: | |
515 | ||
516 | Rn Register direct | |
517 | @Rn Register indirect | |
518 | @(exp[:16], Rn) Register indirect with displacement | |
519 | @Rn+ | |
520 | @-Rn | |
70d6ecf3 AM |
521 | @aa:8 absolute 8 bit |
522 | @aa:16 absolute 16 bit | |
252b5132 RH |
523 | @aa absolute 16 bit |
524 | ||
525 | #xx[:size] immediate data | |
70d6ecf3 | 526 | @(exp:[8], pc) pc rel |
3048287a | 527 | @@aa[:8] memory indirect. */ |
252b5132 RH |
528 | |
529 | char * | |
530 | colonmod24 (op, src) | |
531 | struct h8_op *op; | |
532 | char *src; | |
252b5132 RH |
533 | { |
534 | int mode = 0; | |
535 | src = skip_colonthing (src, &op->exp, &mode); | |
536 | ||
537 | if (!mode) | |
538 | { | |
70d6ecf3 | 539 | /* Choose a default mode. */ |
252b5132 RH |
540 | if (op->exp.X_add_number < -32768 |
541 | || op->exp.X_add_number > 32767) | |
542 | { | |
543 | if (Hmode) | |
544 | mode = L_24; | |
545 | else | |
546 | mode = L_16; | |
547 | } | |
548 | else if (op->exp.X_add_symbol | |
549 | || op->exp.X_op_symbol) | |
550 | mode = DSYMMODE; | |
551 | else | |
552 | mode = DMODE; | |
553 | } | |
3048287a | 554 | |
252b5132 RH |
555 | op->mode |= mode; |
556 | return src; | |
252b5132 RH |
557 | } |
558 | ||
7ee7b84d MS |
559 | static int |
560 | constant_fits_width_p (operand, width) | |
561 | struct h8_op *operand; | |
562 | unsigned int width; | |
563 | { | |
564 | return ((operand->exp.X_add_number & ~width) == 0 | |
565 | || (operand->exp.X_add_number | width) == (unsigned)(~0)); | |
566 | } | |
567 | ||
568 | static int | |
569 | constant_fits_size_p (operand, size, no_symbols) | |
570 | struct h8_op *operand; | |
571 | int size, no_symbols; | |
572 | { | |
573 | offsetT num = operand->exp.X_add_number; | |
574 | if (no_symbols | |
575 | && (operand->exp.X_add_symbol != 0 || operand->exp.X_op_symbol != 0)) | |
576 | return 0; | |
577 | switch (size) | |
578 | { | |
579 | case L_2: | |
580 | return (num & ~3) == 0; | |
581 | case L_3: | |
582 | return (num & ~7) == 0; | |
583 | case L_3NZ: | |
584 | return num >= 1 && num < 8; | |
585 | case L_4: | |
586 | return (num & ~15) == 0; | |
587 | case L_5: | |
588 | return num >= 1 && num < 32; | |
589 | case L_8: | |
590 | return (num & ~0xFF) == 0 || ((unsigned)num | 0x7F) == ~0u; | |
591 | case L_8U: | |
592 | return (num & ~0xFF) == 0; | |
593 | case L_16: | |
594 | return (num & ~0xFFFF) == 0 || ((unsigned)num | 0x7FFF) == ~0u; | |
595 | case L_16U: | |
596 | return (num & ~0xFFFF) == 0; | |
597 | case L_32: | |
598 | return 1; | |
599 | default: | |
600 | abort (); | |
601 | } | |
602 | } | |
603 | ||
252b5132 | 604 | static void |
7ee7b84d | 605 | get_operand (ptr, op, direction) |
252b5132 RH |
606 | char **ptr; |
607 | struct h8_op *op; | |
252b5132 RH |
608 | int direction; |
609 | { | |
610 | char *src = *ptr; | |
611 | op_type mode; | |
612 | unsigned int num; | |
613 | unsigned int len; | |
614 | ||
7ee7b84d | 615 | op->mode = 0; |
252b5132 | 616 | |
3048287a NC |
617 | /* Check for '(' and ')' for instructions ldm and stm. */ |
618 | if (src[0] == '(' && src[8] == ')') | |
619 | ++ src; | |
620 | ||
252b5132 RH |
621 | /* Gross. Gross. ldm and stm have a format not easily handled |
622 | by get_operand. We deal with it explicitly here. */ | |
7ee7b84d MS |
623 | if (TOLOWER (src[0]) == 'e' && TOLOWER (src[1]) == 'r' && |
624 | ISDIGIT (src[2]) && src[3] == '-' && | |
625 | TOLOWER (src[4]) == 'e' && TOLOWER (src[5]) == 'r' && ISDIGIT (src[6])) | |
252b5132 RH |
626 | { |
627 | int low, high; | |
628 | ||
629 | low = src[2] - '0'; | |
630 | high = src[6] - '0'; | |
631 | ||
7ee7b84d | 632 | if (high == low) |
252b5132 RH |
633 | as_bad (_("Invalid register list for ldm/stm\n")); |
634 | ||
7ee7b84d | 635 | if (high < low) |
252b5132 RH |
636 | as_bad (_("Invalid register list for ldm/stm\n")); |
637 | ||
638 | if (high - low > 3) | |
7ee7b84d | 639 | as_bad (_("Invalid register list for ldm/stm)\n")); |
252b5132 RH |
640 | |
641 | /* Even sicker. We encode two registers into op->reg. One | |
642 | for the low register to save, the other for the high | |
643 | register to save; we also set the high bit in op->reg | |
644 | so we know this is "very special". */ | |
645 | op->reg = 0x80000000 | (high << 8) | low; | |
646 | op->mode = REG; | |
3048287a NC |
647 | if (src[7] == ')') |
648 | *ptr = src + 8; | |
649 | else | |
650 | *ptr = src + 7; | |
252b5132 RH |
651 | return; |
652 | } | |
653 | ||
654 | len = parse_reg (src, &op->mode, &op->reg, direction); | |
655 | if (len) | |
656 | { | |
7ee7b84d MS |
657 | src += len; |
658 | if (*src == '.') | |
659 | { | |
660 | int size = op->mode & SIZE; | |
661 | switch (src[1]) | |
662 | { | |
663 | case 'l': case 'L': | |
664 | if (size != L_32) | |
665 | as_warn (_("mismatch between register and suffix")); | |
666 | op->mode = (op->mode & ~MODE) | LOWREG; | |
667 | break; | |
668 | case 'w': case 'W': | |
669 | if (size != L_32 && size != L_16) | |
670 | as_warn (_("mismatch between register and suffix")); | |
671 | op->mode = (op->mode & ~MODE) | LOWREG; | |
672 | op->mode = (op->mode & ~SIZE) | L_16; | |
673 | break; | |
674 | case 'b': case 'B': | |
675 | op->mode = (op->mode & ~MODE) | LOWREG; | |
676 | if (size != L_32 && size != L_8) | |
677 | as_warn (_("mismatch between register and suffix")); | |
678 | op->mode = (op->mode & ~MODE) | LOWREG; | |
679 | op->mode = (op->mode & ~SIZE) | L_8; | |
680 | break; | |
681 | default: | |
682 | as_warn ("invalid suffix after register."); | |
683 | break; | |
684 | } | |
685 | src += 2; | |
686 | } | |
687 | *ptr = src; | |
252b5132 RH |
688 | return; |
689 | } | |
690 | ||
691 | if (*src == '@') | |
692 | { | |
693 | src++; | |
694 | if (*src == '@') | |
695 | { | |
696 | src++; | |
697 | src = parse_exp (src, &op->exp); | |
698 | ||
699 | src = skip_colonthing (src, &op->exp, &op->mode); | |
700 | ||
701 | *ptr = src; | |
702 | ||
7ee7b84d MS |
703 | if (op->exp.X_add_number >= 0x100) |
704 | { | |
705 | int divisor; | |
706 | ||
707 | op->mode = VECIND; | |
708 | /* FIXME : 2? or 4? */ | |
709 | if (op->exp.X_add_number >= 0x400) | |
710 | as_bad (_("address too high for vector table jmp/jsr")); | |
711 | else if (op->exp.X_add_number >= 0x200) | |
712 | divisor = 4; | |
713 | else | |
714 | divisor = 2; | |
715 | ||
716 | op->exp.X_add_number = op->exp.X_add_number / divisor - 0x80; | |
717 | } | |
718 | else | |
719 | op->mode = MEMIND; | |
720 | ||
252b5132 | 721 | return; |
252b5132 RH |
722 | } |
723 | ||
7ee7b84d | 724 | if (*src == '-' || *src == '+') |
252b5132 | 725 | { |
7ee7b84d | 726 | char c = *src; |
252b5132 RH |
727 | src++; |
728 | len = parse_reg (src, &mode, &num, direction); | |
729 | if (len == 0) | |
730 | { | |
70d6ecf3 | 731 | /* Oops, not a reg after all, must be ordinary exp. */ |
252b5132 | 732 | src--; |
70d6ecf3 | 733 | /* Must be a symbol. */ |
252b5132 RH |
734 | op->mode = ABS | PSIZE | direction; |
735 | *ptr = skip_colonthing (parse_exp (src, &op->exp), | |
736 | &op->exp, &op->mode); | |
737 | ||
738 | return; | |
252b5132 RH |
739 | } |
740 | ||
252b5132 RH |
741 | if ((mode & SIZE) != PSIZE) |
742 | as_bad (_("Wrong size pointer register for architecture.")); | |
7ee7b84d | 743 | op->mode = c == '-' ? RDPREDEC : RDPREINC; |
252b5132 RH |
744 | op->reg = num; |
745 | *ptr = src + len; | |
746 | return; | |
747 | } | |
748 | if (*src == '(') | |
749 | { | |
252b5132 RH |
750 | src++; |
751 | ||
7ee7b84d MS |
752 | /* See if this is @(ERn.x, PC). */ |
753 | len = parse_reg (src, &mode, &op->reg, direction); | |
754 | if (len != 0 && (mode & MODE) == REG && src[len] == '.') | |
755 | { | |
756 | switch (TOLOWER (src[len + 1])) | |
757 | { | |
758 | case 'b': | |
759 | mode = PCIDXB | direction; | |
760 | break; | |
761 | case 'w': | |
762 | mode = PCIDXW | direction; | |
763 | break; | |
764 | case 'l': | |
765 | mode = PCIDXL | direction; | |
766 | break; | |
767 | default: | |
768 | mode = 0; | |
769 | break; | |
770 | } | |
771 | if (mode | |
772 | && src[len + 2] == ',' | |
773 | && TOLOWER (src[len + 3]) != 'p' | |
774 | && TOLOWER (src[len + 4]) != 'c' | |
775 | && src[len + 5] != ')') | |
776 | { | |
777 | *ptr = src + len + 6; | |
778 | op->mode |= mode; | |
779 | return; | |
780 | } | |
781 | /* Fall through into disp case - the grammar is somewhat | |
782 | ambiguous, so we should try whether it's a DISP operand | |
783 | after all ("ER3.L" might be a poorly named label...). */ | |
784 | } | |
785 | ||
786 | /* Disp. */ | |
787 | ||
70d6ecf3 | 788 | /* Start off assuming a 16 bit offset. */ |
252b5132 RH |
789 | |
790 | src = parse_exp (src, &op->exp); | |
791 | ||
792 | src = colonmod24 (op, src); | |
793 | ||
794 | if (*src == ')') | |
795 | { | |
796 | src++; | |
797 | op->mode |= ABS | direction; | |
798 | *ptr = src; | |
799 | return; | |
800 | } | |
801 | ||
802 | if (*src != ',') | |
803 | { | |
804 | as_bad (_("expected @(exp, reg16)")); | |
805 | return; | |
806 | ||
807 | } | |
808 | src++; | |
809 | ||
810 | len = parse_reg (src, &mode, &op->reg, direction); | |
7ee7b84d | 811 | if (len == 0 || (mode & MODE) != REG) |
252b5132 RH |
812 | { |
813 | as_bad (_("expected @(exp, reg16)")); | |
814 | return; | |
815 | } | |
252b5132 | 816 | src += len; |
7ee7b84d MS |
817 | if (src[0] == '.') |
818 | { | |
819 | switch (TOLOWER (src[1])) | |
820 | { | |
821 | case 'b': | |
822 | op->mode |= INDEXB | direction; | |
823 | break; | |
824 | case 'w': | |
825 | op->mode |= INDEXW | direction; | |
826 | break; | |
827 | case 'l': | |
828 | op->mode |= INDEXL | direction; | |
829 | break; | |
830 | default: | |
831 | as_bad (_("expected .L, .W or .B for register in indexed addressing mode")); | |
832 | } | |
833 | src += 2; | |
834 | op->reg &= 7; | |
835 | } | |
836 | else | |
837 | op->mode |= DISP | direction; | |
252b5132 RH |
838 | src = skip_colonthing (src, &op->exp, &op->mode); |
839 | ||
840 | if (*src != ')' && '(') | |
841 | { | |
842 | as_bad (_("expected @(exp, reg16)")); | |
843 | return; | |
844 | } | |
845 | *ptr = src + 1; | |
846 | ||
847 | return; | |
848 | } | |
849 | len = parse_reg (src, &mode, &num, direction); | |
850 | ||
851 | if (len) | |
852 | { | |
853 | src += len; | |
7ee7b84d | 854 | if (*src == '+' || *src == '-') |
252b5132 | 855 | { |
252b5132 RH |
856 | if ((mode & SIZE) != PSIZE) |
857 | as_bad (_("Wrong size pointer register for architecture.")); | |
7ee7b84d | 858 | op->mode = *src == '+' ? RSPOSTINC : RSPOSTDEC; |
252b5132 | 859 | op->reg = num; |
7ee7b84d | 860 | src++; |
252b5132 RH |
861 | *ptr = src; |
862 | return; | |
863 | } | |
864 | if ((mode & SIZE) != PSIZE) | |
865 | as_bad (_("Wrong size pointer register for architecture.")); | |
866 | ||
867 | op->mode = direction | IND | PSIZE; | |
868 | op->reg = num; | |
869 | *ptr = src; | |
870 | ||
871 | return; | |
872 | } | |
873 | else | |
874 | { | |
875 | /* must be a symbol */ | |
876 | ||
877 | op->mode = ABS | direction; | |
878 | src = parse_exp (src, &op->exp); | |
879 | ||
880 | *ptr = colonmod24 (op, src); | |
881 | ||
882 | return; | |
883 | } | |
884 | } | |
885 | ||
252b5132 RH |
886 | if (*src == '#') |
887 | { | |
888 | src++; | |
889 | op->mode = IMM; | |
890 | src = parse_exp (src, &op->exp); | |
891 | *ptr = skip_colonthing (src, &op->exp, &op->mode); | |
892 | ||
893 | return; | |
894 | } | |
7ee7b84d MS |
895 | else if (strncmp (src, "mach", 4) == 0 || |
896 | strncmp (src, "macl", 4) == 0 || | |
897 | strncmp (src, "MACH", 4) == 0 || | |
898 | strncmp (src, "MACL", 4) == 0) | |
252b5132 | 899 | { |
7ee7b84d | 900 | op->reg = TOLOWER (src[3]) == 'l'; |
252b5132 RH |
901 | op->mode = MACREG; |
902 | *ptr = src + 4; | |
903 | return; | |
904 | } | |
905 | else | |
906 | { | |
907 | src = parse_exp (src, &op->exp); | |
908 | /* Trailing ':' size ? */ | |
909 | if (*src == ':') | |
910 | { | |
911 | if (src[1] == '1' && src[2] == '6') | |
912 | { | |
913 | op->mode = PCREL | L_16; | |
914 | src += 3; | |
915 | } | |
916 | else if (src[1] == '8') | |
917 | { | |
918 | op->mode = PCREL | L_8; | |
919 | src += 2; | |
920 | } | |
921 | else | |
3048287a | 922 | as_bad (_("expect :8 or :16 here")); |
252b5132 RH |
923 | } |
924 | else | |
7ee7b84d MS |
925 | { |
926 | int val = op->exp.X_add_number; | |
927 | ||
928 | op->mode = PCREL; | |
929 | if (-128 < val && val < 127) | |
930 | op->mode |= L_8; | |
931 | else | |
932 | op->mode |= L_16; | |
933 | } | |
3048287a | 934 | |
252b5132 RH |
935 | *ptr = src; |
936 | } | |
937 | } | |
938 | ||
70d6ecf3 | 939 | static char * |
252b5132 RH |
940 | get_operands (noperands, op_end, operand) |
941 | unsigned int noperands; | |
942 | char *op_end; | |
943 | struct h8_op *operand; | |
944 | { | |
945 | char *ptr = op_end; | |
946 | ||
947 | switch (noperands) | |
948 | { | |
949 | case 0: | |
252b5132 RH |
950 | break; |
951 | ||
952 | case 1: | |
953 | ptr++; | |
7ee7b84d | 954 | get_operand (&ptr, operand + 0, SRC); |
252b5132 RH |
955 | if (*ptr == ',') |
956 | { | |
957 | ptr++; | |
7ee7b84d | 958 | get_operand (&ptr, operand + 1, DST); |
252b5132 | 959 | } |
252b5132 | 960 | break; |
70d6ecf3 | 961 | |
252b5132 RH |
962 | case 2: |
963 | ptr++; | |
7ee7b84d | 964 | get_operand (&ptr, operand + 0, SRC); |
252b5132 RH |
965 | if (*ptr == ',') |
966 | ptr++; | |
7ee7b84d MS |
967 | get_operand (&ptr, operand + 1, DST); |
968 | break; | |
969 | ||
970 | case 3: | |
971 | ptr++; | |
972 | get_operand (&ptr, operand + 0, SRC); | |
973 | if (*ptr == ',') | |
974 | ptr++; | |
975 | get_operand (&ptr, operand + 1, DST); | |
976 | if (*ptr == ',') | |
977 | ptr++; | |
978 | get_operand (&ptr, operand + 2, OP3); | |
252b5132 RH |
979 | break; |
980 | ||
981 | default: | |
982 | abort (); | |
983 | } | |
984 | ||
252b5132 RH |
985 | return ptr; |
986 | } | |
987 | ||
7ee7b84d MS |
988 | /* MOVA has special requirements. Rather than adding twice the amount of |
989 | addressing modes, we simply special case it a bit. */ | |
990 | static void | |
991 | get_mova_operands (char *op_end, struct h8_op *operand) | |
992 | { | |
993 | char *ptr = op_end; | |
994 | ||
995 | if (ptr[1] != '@' || ptr[2] != '(') | |
996 | goto error; | |
997 | ptr += 3; | |
998 | operand[0].mode = 0; | |
999 | ptr = parse_exp (ptr, &operand[0].exp); | |
1000 | ptr = colonmod24 (operand + 0, ptr); | |
1001 | ||
1002 | if (*ptr !=',') | |
1003 | goto error; | |
1004 | ptr++; | |
1005 | get_operand (&ptr, operand + 1, DST); | |
1006 | ||
1007 | if (*ptr =='.') | |
1008 | { | |
1009 | ptr++; | |
1010 | switch (*ptr++) | |
1011 | { | |
1012 | case 'b': case 'B': | |
1013 | operand[0].mode = (operand[0].mode & ~MODE) | INDEXB; | |
1014 | break; | |
1015 | case 'w': case 'W': | |
1016 | operand[0].mode = (operand[0].mode & ~MODE) | INDEXW; | |
1017 | break; | |
1018 | case 'l': case 'L': | |
1019 | operand[0].mode = (operand[0].mode & ~MODE) | INDEXL; | |
1020 | break; | |
1021 | default: | |
1022 | goto error; | |
1023 | } | |
1024 | } | |
1025 | else if ((operand[1].mode & MODE) == LOWREG) | |
1026 | { | |
1027 | switch (operand[1].mode & SIZE) | |
1028 | { | |
1029 | case L_8: | |
1030 | operand[0].mode = (operand[0].mode & ~MODE) | INDEXB; | |
1031 | break; | |
1032 | case L_16: | |
1033 | operand[0].mode = (operand[0].mode & ~MODE) | INDEXW; | |
1034 | break; | |
1035 | case L_32: | |
1036 | operand[0].mode = (operand[0].mode & ~MODE) | INDEXL; | |
1037 | break; | |
1038 | default: | |
1039 | goto error; | |
1040 | } | |
1041 | } | |
1042 | else | |
1043 | goto error; | |
1044 | ||
1045 | if (*ptr++ != ')' || *ptr++ != ',') | |
1046 | goto error; | |
1047 | get_operand (&ptr, operand + 2, OP3); | |
1048 | /* See if we can use the short form of MOVA. */ | |
1049 | if (((operand[1].mode & MODE) == REG || (operand[1].mode & MODE) == LOWREG) | |
1050 | && (operand[2].mode & MODE) == REG | |
1051 | && (operand[1].reg & 7) == (operand[2].reg & 7)) | |
1052 | { | |
1053 | operand[1].mode = operand[2].mode = 0; | |
1054 | operand[0].reg = operand[2].reg & 7; | |
1055 | } | |
1056 | return; | |
1057 | ||
1058 | error: | |
1059 | as_bad (_("expected valid addressing mode for mova: \"@(disp, ea.sz),ERn\"")); | |
1060 | return; | |
1061 | } | |
1062 | ||
1063 | static void | |
1064 | get_rtsl_operands (char *ptr, struct h8_op *operand) | |
1065 | { | |
1066 | int mode, num, num2, len, type = 0; | |
1067 | ||
1068 | ptr++; | |
1069 | if (*ptr == '(') | |
1070 | { | |
1071 | ptr++; | |
1072 | type = 1; | |
1073 | } | |
1074 | len = parse_reg (ptr, &mode, &num, SRC); | |
1075 | if (len == 0 || (mode & MODE) != REG) | |
1076 | { | |
1077 | as_bad (_("expected register")); | |
1078 | return; | |
1079 | } | |
1080 | if (type == 1) | |
1081 | { | |
1082 | ptr += len; | |
1083 | if (*ptr++ != '-') | |
1084 | { | |
1085 | as_bad (_("expected register list")); | |
1086 | return; | |
1087 | } | |
1088 | len = parse_reg (ptr, &mode, &num2, SRC); | |
1089 | if (len == 0 || (mode & MODE) != REG) | |
1090 | { | |
1091 | as_bad (_("expected register")); | |
1092 | return; | |
1093 | } | |
1094 | ptr += len; | |
1095 | if (*ptr++ != ')') | |
1096 | { | |
1097 | as_bad (_("expected closing paren")); | |
1098 | return; | |
1099 | } | |
1100 | /* CONST_xxx are used as placeholders in the opcode table. */ | |
1101 | num = num2 - num; | |
1102 | if (num < 1 || num > 3) | |
1103 | { | |
1104 | as_bad (_("invalid register list")); | |
1105 | return; | |
1106 | } | |
1107 | } | |
1108 | else | |
1109 | num2 = num, num = 0; | |
1110 | operand[0].mode = RS32; | |
1111 | operand[1].mode = RD32; | |
1112 | operand[0].reg = num; | |
1113 | operand[1].reg = num2; | |
1114 | } | |
1115 | ||
252b5132 RH |
1116 | /* Passed a pointer to a list of opcodes which use different |
1117 | addressing modes, return the opcode which matches the opcodes | |
70d6ecf3 | 1118 | provided. */ |
3048287a | 1119 | |
a720f7bc KD |
1120 | static const struct h8_instruction * |
1121 | get_specific (instruction, operands, size) | |
1122 | const struct h8_instruction *instruction; | |
252b5132 RH |
1123 | struct h8_op *operands; |
1124 | int size; | |
1125 | { | |
a720f7bc | 1126 | const struct h8_instruction *this_try = instruction; |
7ee7b84d | 1127 | const struct h8_instruction *found_other = 0, *found_mismatched = 0; |
252b5132 | 1128 | int found = 0; |
a720f7bc | 1129 | int this_index = instruction->idx; |
7ee7b84d | 1130 | int noperands = 0; |
252b5132 RH |
1131 | |
1132 | /* There's only one ldm/stm and it's easier to just | |
1133 | get out quick for them. */ | |
7ee7b84d MS |
1134 | if (OP_KIND (instruction->opcode->how) == O_LDM |
1135 | || OP_KIND (instruction->opcode->how) == O_STM) | |
252b5132 RH |
1136 | return this_try; |
1137 | ||
7ee7b84d MS |
1138 | while (noperands < 3 && operands[noperands].mode != 0) |
1139 | noperands++; | |
1140 | ||
a720f7bc | 1141 | while (this_index == instruction->idx && !found) |
252b5132 | 1142 | { |
7ee7b84d | 1143 | int this_size; |
252b5132 | 1144 | |
7ee7b84d | 1145 | found = 1; |
a720f7bc | 1146 | this_try = instruction++; |
7ee7b84d | 1147 | this_size = this_try->opcode->how & SN; |
252b5132 | 1148 | |
7ee7b84d MS |
1149 | if (this_try->noperands != noperands) |
1150 | found = 0; | |
1151 | else if (this_try->noperands > 0) | |
252b5132 | 1152 | { |
3048287a | 1153 | int i; |
252b5132 RH |
1154 | |
1155 | for (i = 0; i < this_try->noperands && found; i++) | |
1156 | { | |
a720f7bc | 1157 | op_type op = this_try->opcode->args.nib[i]; |
7ee7b84d MS |
1158 | int op_mode = op & MODE; |
1159 | int op_size = op & SIZE; | |
252b5132 | 1160 | int x = operands[i].mode; |
7ee7b84d MS |
1161 | int x_mode = x & MODE; |
1162 | int x_size = x & SIZE; | |
252b5132 | 1163 | |
7ee7b84d | 1164 | if (op_mode == LOWREG && (x_mode == REG || x_mode == LOWREG)) |
252b5132 | 1165 | { |
7ee7b84d MS |
1166 | if ((x_size == L_8 && (operands[i].reg & 8) == 0) |
1167 | || (x_size == L_16 && (operands[i].reg & 8) == 8)) | |
1168 | as_warn (_("can't use high part of register in operand %d"), i); | |
1169 | ||
1170 | if (x_size != op_size) | |
1171 | found = 0; | |
252b5132 | 1172 | } |
7ee7b84d | 1173 | else if (op_mode == REG) |
252b5132 | 1174 | { |
7ee7b84d MS |
1175 | if (x_mode == LOWREG) |
1176 | x_mode = REG; | |
1177 | if (x_mode != REG) | |
252b5132 RH |
1178 | found = 0; |
1179 | ||
7ee7b84d MS |
1180 | if (x_size == L_P) |
1181 | x_size = (Hmode ? L_32 : L_16); | |
1182 | if (op_size == L_P) | |
1183 | op_size = (Hmode ? L_32 : L_16); | |
252b5132 | 1184 | |
70d6ecf3 | 1185 | /* The size of the reg is v important. */ |
7ee7b84d | 1186 | if (op_size != x_size) |
252b5132 RH |
1187 | found = 0; |
1188 | } | |
7ee7b84d | 1189 | else if (op_mode & CTRL) /* control register */ |
252b5132 | 1190 | { |
7ee7b84d MS |
1191 | if (!(x_mode & CTRL)) |
1192 | found = 0; | |
1193 | ||
1194 | switch (x_mode) | |
1195 | { | |
1196 | case CCR: | |
1197 | if (op_mode != CCR && | |
1198 | op_mode != CCR_EXR && | |
1199 | op_mode != CC_EX_VB_SB) | |
1200 | found = 0; | |
1201 | break; | |
1202 | case EXR: | |
1203 | if (op_mode != EXR && | |
1204 | op_mode != CCR_EXR && | |
1205 | op_mode != CC_EX_VB_SB) | |
1206 | found = 0; | |
1207 | break; | |
1208 | case MACH: | |
1209 | if (op_mode != MACH && | |
1210 | op_mode != MACREG) | |
1211 | found = 0; | |
1212 | break; | |
1213 | case MACL: | |
1214 | if (op_mode != MACL && | |
1215 | op_mode != MACREG) | |
1216 | found = 0; | |
1217 | break; | |
1218 | case VBR: | |
1219 | if (op_mode != VBR && | |
1220 | op_mode != VBR_SBR && | |
1221 | op_mode != CC_EX_VB_SB) | |
1222 | found = 0; | |
1223 | break; | |
1224 | case SBR: | |
1225 | if (op_mode != SBR && | |
1226 | op_mode != VBR_SBR && | |
1227 | op_mode != CC_EX_VB_SB) | |
1228 | found = 0; | |
1229 | break; | |
1230 | } | |
1231 | } | |
1232 | else if ((op & ABSJMP) && (x_mode == ABS || x_mode == PCREL)) | |
1233 | { | |
1234 | operands[i].mode &= ~MODE; | |
252b5132 | 1235 | operands[i].mode |= ABSJMP; |
70d6ecf3 | 1236 | /* But it may not be 24 bits long. */ |
7ee7b84d | 1237 | if (x_mode == ABS && !Hmode) |
252b5132 RH |
1238 | { |
1239 | operands[i].mode &= ~SIZE; | |
1240 | operands[i].mode |= L_16; | |
1241 | } | |
7ee7b84d MS |
1242 | if ((operands[i].mode & SIZE) == L_32 |
1243 | && (op_mode & SIZE) != L_32) | |
1244 | found = 0; | |
252b5132 | 1245 | } |
7ee7b84d | 1246 | else if (x_mode == IMM && op_mode != IMM) |
252b5132 | 1247 | { |
7ee7b84d MS |
1248 | offsetT num = operands[i].exp.X_add_number; |
1249 | if (op_mode == KBIT || op_mode == DBIT) | |
1250 | /* This is ok if the immediate value is sensible. */; | |
1251 | else if (op_mode == CONST_2) | |
1252 | found = num == 2; | |
1253 | else if (op_mode == CONST_4) | |
1254 | found = num == 4; | |
1255 | else if (op_mode == CONST_8) | |
1256 | found = num == 8; | |
1257 | else if (op_mode == CONST_16) | |
1258 | found = num == 16; | |
1259 | else | |
1260 | found = 0; | |
252b5132 | 1261 | } |
7ee7b84d | 1262 | else if (op_mode == PCREL && op_mode == x_mode) |
252b5132 | 1263 | { |
7ee7b84d MS |
1264 | /* movsd only comes in PCREL16 flavour: |
1265 | If x_size is L_8, promote it. */ | |
1266 | if (OP_KIND (this_try->opcode->how) == O_MOVSD) | |
1267 | if (x_size == L_8) | |
1268 | x_size = L_16; | |
1269 | ||
70d6ecf3 | 1270 | /* The size of the displacement is important. */ |
7ee7b84d | 1271 | if (op_size != x_size) |
252b5132 RH |
1272 | found = 0; |
1273 | } | |
7ee7b84d MS |
1274 | else if ((op_mode == DISP || op_mode == IMM || op_mode == ABS |
1275 | || op_mode == INDEXB || op_mode == INDEXW | |
1276 | || op_mode == INDEXL) | |
1277 | && op_mode == x_mode) | |
252b5132 RH |
1278 | { |
1279 | /* Promote a L_24 to L_32 if it makes us match. */ | |
7ee7b84d | 1280 | if (x_size == L_24 && op_size == L_32) |
252b5132 | 1281 | { |
7ee7b84d MS |
1282 | x &= ~SIZE; |
1283 | x |= x_size = L_32; | |
252b5132 | 1284 | } |
7ee7b84d MS |
1285 | |
1286 | #if 0 /* ??? */ | |
252b5132 | 1287 | /* Promote an L8 to L_16 if it makes us match. */ |
7ee7b84d | 1288 | if ((op_mode == ABS || op_mode == DISP) && x_size == L_8) |
252b5132 | 1289 | { |
7ee7b84d MS |
1290 | if (op_size == L_16) |
1291 | x_size = L_16; | |
252b5132 | 1292 | } |
7ee7b84d MS |
1293 | #endif |
1294 | ||
1295 | if (((x_size == L_16 && op_size == L_16U) | |
1296 | || (x_size == L_3 && op_size == L_3NZ)) | |
1297 | /* We're deliberately more permissive for ABS modes. */ | |
1298 | && (op_mode == ABS | |
1299 | || constant_fits_size_p (operands + i, op_size, | |
1300 | op & NO_SYMBOLS))) | |
1301 | x_size = op_size; | |
1302 | ||
1303 | if (x_size != 0 && op_size != x_size) | |
1304 | found = 0; | |
1305 | else if (x_size == 0 | |
1306 | && ! constant_fits_size_p (operands + i, op_size, | |
1307 | op & NO_SYMBOLS)) | |
252b5132 RH |
1308 | found = 0; |
1309 | } | |
7ee7b84d | 1310 | else if (op_mode != x_mode) |
252b5132 RH |
1311 | { |
1312 | found = 0; | |
70d6ecf3 | 1313 | } |
252b5132 RH |
1314 | } |
1315 | } | |
7ee7b84d MS |
1316 | if (found) |
1317 | { | |
1318 | if ((this_try->opcode->available == AV_H8SX && ! SXmode) | |
1319 | || (this_try->opcode->available == AV_H8H && ! Hmode)) | |
1320 | found = 0, found_other = this_try; | |
1321 | else if (this_size != size && (this_size != SN && size != SN)) | |
1322 | found_mismatched = this_try, found = 0; | |
1323 | ||
1324 | } | |
252b5132 RH |
1325 | } |
1326 | if (found) | |
1327 | return this_try; | |
7ee7b84d MS |
1328 | if (found_other) |
1329 | { | |
1330 | as_warn (_("Opcode `%s' with these operand types not available in %s mode"), | |
1331 | found_other->opcode->name, | |
1332 | (! Hmode && ! Smode ? "H8/300" | |
1333 | : SXmode ? "H8sx" | |
1334 | : Smode ? "H8/300S" | |
1335 | : "H8/300H")); | |
1336 | } | |
1337 | else if (found_mismatched) | |
1338 | { | |
1339 | as_warn (_("mismatch between opcode size and operand size")); | |
1340 | return found_mismatched; | |
1341 | } | |
1342 | return 0; | |
252b5132 RH |
1343 | } |
1344 | ||
1345 | static void | |
1346 | check_operand (operand, width, string) | |
1347 | struct h8_op *operand; | |
1348 | unsigned int width; | |
1349 | char *string; | |
1350 | { | |
1351 | if (operand->exp.X_add_symbol == 0 | |
1352 | && operand->exp.X_op_symbol == 0) | |
1353 | { | |
70d6ecf3 AM |
1354 | /* No symbol involved, let's look at offset, it's dangerous if |
1355 | any of the high bits are not 0 or ff's, find out by oring or | |
1356 | anding with the width and seeing if the answer is 0 or all | |
1357 | fs. */ | |
252b5132 | 1358 | |
7ee7b84d | 1359 | if (! constant_fits_width_p (operand, width)) |
252b5132 | 1360 | { |
70d6ecf3 | 1361 | if (width == 255 |
252b5132 RH |
1362 | && (operand->exp.X_add_number & 0xff00) == 0xff00) |
1363 | { | |
1364 | /* Just ignore this one - which happens when trying to | |
1365 | fit a 16 bit address truncated into an 8 bit address | |
1366 | of something like bset. */ | |
1367 | } | |
166e23f9 KH |
1368 | else if (strcmp (string, "@") == 0 |
1369 | && width == 0xffff | |
1370 | && (operand->exp.X_add_number & 0xff8000) == 0xff8000) | |
1371 | { | |
1372 | /* Just ignore this one - which happens when trying to | |
1373 | fit a 24 bit address truncated into a 16 bit address | |
1374 | of something like mov.w. */ | |
1375 | } | |
70d6ecf3 | 1376 | else |
252b5132 RH |
1377 | { |
1378 | as_warn (_("operand %s0x%lx out of range."), string, | |
1379 | (unsigned long) operand->exp.X_add_number); | |
1380 | } | |
1381 | } | |
1382 | } | |
252b5132 RH |
1383 | } |
1384 | ||
1385 | /* RELAXMODE has one of 3 values: | |
1386 | ||
1387 | 0 Output a "normal" reloc, no relaxing possible for this insn/reloc | |
1388 | ||
1389 | 1 Output a relaxable 24bit absolute mov.w address relocation | |
1390 | (may relax into a 16bit absolute address). | |
1391 | ||
1392 | 2 Output a relaxable 16/24 absolute mov.b address relocation | |
1393 | (may relax into an 8bit absolute address). */ | |
1394 | ||
1395 | static void | |
7ee7b84d MS |
1396 | do_a_fix_imm (offset, nibble, operand, relaxmode) |
1397 | int offset, nibble; | |
252b5132 RH |
1398 | struct h8_op *operand; |
1399 | int relaxmode; | |
1400 | { | |
1401 | int idx; | |
1402 | int size; | |
1403 | int where; | |
7ee7b84d | 1404 | char *bytes = frag_now->fr_literal + offset; |
252b5132 | 1405 | |
7ee7b84d | 1406 | char *t = ((operand->mode & MODE) == IMM) ? "#" : "@"; |
252b5132 RH |
1407 | |
1408 | if (operand->exp.X_add_symbol == 0) | |
1409 | { | |
252b5132 RH |
1410 | switch (operand->mode & SIZE) |
1411 | { | |
1412 | case L_2: | |
1413 | check_operand (operand, 0x3, t); | |
7ee7b84d | 1414 | bytes[0] |= (operand->exp.X_add_number & 3) << (nibble ? 0 : 4); |
252b5132 RH |
1415 | break; |
1416 | case L_3: | |
7ee7b84d | 1417 | case L_3NZ: |
252b5132 | 1418 | check_operand (operand, 0x7, t); |
7ee7b84d MS |
1419 | bytes[0] |= (operand->exp.X_add_number & 7) << (nibble ? 0 : 4); |
1420 | break; | |
1421 | case L_4: | |
1422 | check_operand (operand, 0xF, t); | |
1423 | bytes[0] |= (operand->exp.X_add_number & 15) << (nibble ? 0 : 4); | |
1424 | break; | |
1425 | case L_5: | |
1426 | check_operand (operand, 0x1F, t); | |
1427 | bytes[0] |= operand->exp.X_add_number & 31; | |
252b5132 RH |
1428 | break; |
1429 | case L_8: | |
7ee7b84d | 1430 | case L_8U: |
252b5132 | 1431 | check_operand (operand, 0xff, t); |
7ee7b84d | 1432 | bytes[0] |= operand->exp.X_add_number; |
252b5132 RH |
1433 | break; |
1434 | case L_16: | |
7ee7b84d | 1435 | case L_16U: |
252b5132 | 1436 | check_operand (operand, 0xffff, t); |
7ee7b84d MS |
1437 | bytes[0] |= operand->exp.X_add_number >> 8; |
1438 | bytes[1] |= operand->exp.X_add_number >> 0; | |
252b5132 RH |
1439 | break; |
1440 | case L_24: | |
1441 | check_operand (operand, 0xffffff, t); | |
7ee7b84d MS |
1442 | bytes[0] |= operand->exp.X_add_number >> 16; |
1443 | bytes[1] |= operand->exp.X_add_number >> 8; | |
1444 | bytes[2] |= operand->exp.X_add_number >> 0; | |
252b5132 RH |
1445 | break; |
1446 | ||
1447 | case L_32: | |
70d6ecf3 | 1448 | /* This should be done with bfd. */ |
7ee7b84d MS |
1449 | bytes[0] |= operand->exp.X_add_number >> 24; |
1450 | bytes[1] |= operand->exp.X_add_number >> 16; | |
1451 | bytes[2] |= operand->exp.X_add_number >> 8; | |
1452 | bytes[3] |= operand->exp.X_add_number >> 0; | |
4132022d AM |
1453 | if (relaxmode != 0) |
1454 | { | |
1455 | idx = (relaxmode == 2) ? R_MOV24B1 : R_MOVL1; | |
1456 | fix_new_exp (frag_now, offset, 4, &operand->exp, 0, idx); | |
1457 | } | |
252b5132 RH |
1458 | break; |
1459 | } | |
252b5132 RH |
1460 | } |
1461 | else | |
1462 | { | |
1463 | switch (operand->mode & SIZE) | |
1464 | { | |
252b5132 RH |
1465 | case L_24: |
1466 | case L_32: | |
1467 | size = 4; | |
1468 | where = (operand->mode & SIZE) == L_24 ? -1 : 0; | |
1469 | if (relaxmode == 2) | |
1470 | idx = R_MOV24B1; | |
1471 | else if (relaxmode == 1) | |
1472 | idx = R_MOVL1; | |
1473 | else | |
1474 | idx = R_RELLONG; | |
1475 | break; | |
1476 | default: | |
70d6ecf3 | 1477 | as_bad (_("Can't work out size of operand.\n")); |
252b5132 | 1478 | case L_16: |
7ee7b84d | 1479 | case L_16U: |
252b5132 RH |
1480 | size = 2; |
1481 | where = 0; | |
1482 | if (relaxmode == 2) | |
1483 | idx = R_MOV16B1; | |
1484 | else | |
1485 | idx = R_RELWORD; | |
4132022d AM |
1486 | operand->exp.X_add_number = |
1487 | ((operand->exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000; | |
7ee7b84d | 1488 | operand->exp.X_add_number |= (bytes[0] << 8) | bytes[1]; |
252b5132 RH |
1489 | break; |
1490 | case L_8: | |
1491 | size = 1; | |
1492 | where = 0; | |
1493 | idx = R_RELBYTE; | |
4132022d AM |
1494 | operand->exp.X_add_number = |
1495 | ((operand->exp.X_add_number & 0xff) ^ 0x80) - 0x80; | |
7ee7b84d | 1496 | operand->exp.X_add_number |= bytes[0]; |
252b5132 RH |
1497 | } |
1498 | ||
1499 | fix_new_exp (frag_now, | |
1500 | offset + where, | |
1501 | size, | |
1502 | &operand->exp, | |
1503 | 0, | |
1504 | idx); | |
1505 | } | |
252b5132 RH |
1506 | } |
1507 | ||
70d6ecf3 | 1508 | /* Now we know what sort of opcodes it is, let's build the bytes. */ |
3048287a | 1509 | |
252b5132 RH |
1510 | static void |
1511 | build_bytes (this_try, operand) | |
a720f7bc | 1512 | const struct h8_instruction *this_try; |
252b5132 RH |
1513 | struct h8_op *operand; |
1514 | { | |
3048287a | 1515 | int i; |
252b5132 | 1516 | char *output = frag_more (this_try->length); |
a720f7bc | 1517 | op_type *nibble_ptr = this_try->opcode->data.nib; |
252b5132 RH |
1518 | op_type c; |
1519 | unsigned int nibble_count = 0; | |
7ee7b84d | 1520 | int op_at[3]; |
3048287a | 1521 | int nib = 0; |
252b5132 | 1522 | int movb = 0; |
7ee7b84d | 1523 | char asnibbles[100]; |
252b5132 | 1524 | char *p = asnibbles; |
7ee7b84d | 1525 | int high, low; |
252b5132 | 1526 | |
7ee7b84d | 1527 | if (!(this_try->opcode->available == AV_H8 || Hmode)) |
252b5132 | 1528 | as_warn (_("Opcode `%s' with these operand types not available in H8/300 mode"), |
a720f7bc | 1529 | this_try->opcode->name); |
252b5132 | 1530 | |
7ee7b84d | 1531 | while (*nibble_ptr != (op_type) E) |
252b5132 RH |
1532 | { |
1533 | int d; | |
7ee7b84d MS |
1534 | |
1535 | nib = 0; | |
252b5132 RH |
1536 | c = *nibble_ptr++; |
1537 | ||
7ee7b84d | 1538 | d = (c & OP3) == OP3 ? 2 : (c & DST) == DST ? 1 : 0; |
252b5132 RH |
1539 | |
1540 | if (c < 16) | |
3048287a | 1541 | nib = c; |
252b5132 RH |
1542 | else |
1543 | { | |
7ee7b84d MS |
1544 | int c2 = c & MODE; |
1545 | ||
1546 | if (c2 == REG || c2 == LOWREG | |
1547 | || c2 == IND || c2 == PREINC || c2 == PREDEC | |
1548 | || c2 == POSTINC || c2 == POSTDEC) | |
1549 | { | |
1550 | nib = operand[d].reg; | |
1551 | if (c2 == LOWREG) | |
1552 | nib &= 7; | |
1553 | } | |
1554 | ||
1555 | else if (c & CTRL) /* Control reg operand. */ | |
3048287a NC |
1556 | nib = operand[d].reg; |
1557 | ||
252b5132 | 1558 | else if ((c & DISPREG) == (DISPREG)) |
7ee7b84d MS |
1559 | { |
1560 | nib = operand[d].reg; | |
1561 | } | |
1562 | else if (c2 == ABS) | |
252b5132 RH |
1563 | { |
1564 | operand[d].mode = c; | |
7ee7b84d | 1565 | op_at[d] = nibble_count; |
252b5132 RH |
1566 | nib = 0; |
1567 | } | |
7ee7b84d MS |
1568 | else if (c2 == IMM || c2 == PCREL || c2 == ABS |
1569 | || (c & ABSJMP) || c2 == DISP) | |
252b5132 RH |
1570 | { |
1571 | operand[d].mode = c; | |
7ee7b84d | 1572 | op_at[d] = nibble_count; |
252b5132 RH |
1573 | nib = 0; |
1574 | } | |
7ee7b84d | 1575 | else if ((c & IGNORE) || (c & DATA)) |
3048287a NC |
1576 | nib = 0; |
1577 | ||
7ee7b84d | 1578 | else if (c2 == DBIT) |
252b5132 RH |
1579 | { |
1580 | switch (operand[0].exp.X_add_number) | |
1581 | { | |
1582 | case 1: | |
1583 | nib = c; | |
1584 | break; | |
1585 | case 2: | |
1586 | nib = 0x8 | c; | |
1587 | break; | |
1588 | default: | |
1589 | as_bad (_("Need #1 or #2 here")); | |
1590 | } | |
1591 | } | |
7ee7b84d | 1592 | else if (c2 == KBIT) |
252b5132 RH |
1593 | { |
1594 | switch (operand[0].exp.X_add_number) | |
1595 | { | |
1596 | case 1: | |
1597 | nib = 0; | |
1598 | break; | |
1599 | case 2: | |
1600 | nib = 8; | |
1601 | break; | |
1602 | case 4: | |
1603 | if (!Hmode) | |
1604 | as_warn (_("#4 not valid on H8/300.")); | |
1605 | nib = 9; | |
1606 | break; | |
1607 | ||
1608 | default: | |
1609 | as_bad (_("Need #1 or #2 here")); | |
1610 | break; | |
1611 | } | |
70d6ecf3 | 1612 | /* Stop it making a fix. */ |
252b5132 RH |
1613 | operand[0].mode = 0; |
1614 | } | |
1615 | ||
1616 | if (c & MEMRELAX) | |
3048287a | 1617 | operand[d].mode |= MEMRELAX; |
252b5132 RH |
1618 | |
1619 | if (c & B31) | |
3048287a | 1620 | nib |= 0x8; |
252b5132 | 1621 | |
7ee7b84d MS |
1622 | if (c & B21) |
1623 | nib |= 0x4; | |
1624 | ||
1625 | if (c & B11) | |
1626 | nib |= 0x2; | |
1627 | ||
1628 | if (c & B01) | |
1629 | nib |= 0x1; | |
1630 | ||
1631 | if (c2 == MACREG) | |
252b5132 | 1632 | { |
f0c56b90 NC |
1633 | if (operand[0].mode == MACREG) |
1634 | /* stmac has mac[hl] as the first operand. */ | |
1635 | nib = 2 + operand[0].reg; | |
1636 | else | |
1637 | /* ldmac has mac[hl] as the second operand. */ | |
1638 | nib = 2 + operand[1].reg; | |
252b5132 RH |
1639 | } |
1640 | } | |
1641 | nibble_count++; | |
1642 | ||
1643 | *p++ = nib; | |
1644 | } | |
1645 | ||
1646 | /* Disgusting. Why, oh why didn't someone ask us for advice | |
1647 | on the assembler format. */ | |
7ee7b84d | 1648 | if (OP_KIND (this_try->opcode->how) == O_LDM) |
252b5132 | 1649 | { |
7ee7b84d MS |
1650 | high = (operand[1].reg >> 8) & 0xf; |
1651 | low = (operand[1].reg) & 0xf; | |
252b5132 | 1652 | asnibbles[2] = high - low; |
7ee7b84d MS |
1653 | asnibbles[7] = high; |
1654 | } | |
1655 | else if (OP_KIND (this_try->opcode->how) == O_STM) | |
1656 | { | |
1657 | high = (operand[0].reg >> 8) & 0xf; | |
1658 | low = (operand[0].reg) & 0xf; | |
1659 | asnibbles[2] = high - low; | |
1660 | asnibbles[7] = low; | |
252b5132 RH |
1661 | } |
1662 | ||
1663 | for (i = 0; i < this_try->length; i++) | |
3048287a | 1664 | output[i] = (asnibbles[i * 2] << 4) | asnibbles[i * 2 + 1]; |
252b5132 RH |
1665 | |
1666 | /* Note if this is a movb instruction -- there's a special relaxation | |
1667 | which only applies to them. */ | |
7ee7b84d | 1668 | if (this_try->opcode->how == O (O_MOV, SB)) |
252b5132 RH |
1669 | movb = 1; |
1670 | ||
70d6ecf3 | 1671 | /* Output any fixes. */ |
7ee7b84d | 1672 | for (i = 0; i < this_try->noperands; i++) |
252b5132 RH |
1673 | { |
1674 | int x = operand[i].mode; | |
7ee7b84d | 1675 | int x_mode = x & MODE; |
252b5132 | 1676 | |
7ee7b84d MS |
1677 | if (x_mode == IMM || x_mode == DISP) |
1678 | do_a_fix_imm (output - frag_now->fr_literal + op_at[i] / 2, | |
1679 | op_at[i] & 1, operand + i, (x & MEMRELAX) != 0); | |
3048287a | 1680 | |
7ee7b84d MS |
1681 | else if (x_mode == ABS) |
1682 | do_a_fix_imm (output - frag_now->fr_literal + op_at[i] / 2, | |
1683 | op_at[i] & 1, operand + i, | |
1684 | (x & MEMRELAX) ? movb + 1 : 0); | |
3048287a | 1685 | |
7ee7b84d | 1686 | else if (x_mode == PCREL) |
252b5132 | 1687 | { |
7ee7b84d | 1688 | int size16 = (x & SIZE) == L_16; |
252b5132 RH |
1689 | int size = size16 ? 2 : 1; |
1690 | int type = size16 ? R_PCRWORD : R_PCRBYTE; | |
36ed2fff | 1691 | fixS *fixP; |
252b5132 RH |
1692 | |
1693 | check_operand (operand + i, size16 ? 0x7fff : 0x7f, "@"); | |
1694 | ||
1695 | if (operand[i].exp.X_add_number & 1) | |
3048287a NC |
1696 | as_warn (_("branch operand has odd offset (%lx)\n"), |
1697 | (unsigned long) operand->exp.X_add_number); | |
36ed2fff JL |
1698 | #ifndef OBJ_ELF |
1699 | /* The COFF port has always been off by one, changing it | |
1700 | now would be an incompatible change, so we leave it as-is. | |
1701 | ||
1702 | We don't want to do this for ELF as we want to be | |
1703 | compatible with the proposed ELF format from Hitachi. */ | |
252b5132 | 1704 | operand[i].exp.X_add_number -= 1; |
36ed2fff | 1705 | #endif |
7ee7b84d MS |
1706 | if (size16) |
1707 | { | |
1708 | operand[i].exp.X_add_number = | |
1709 | ((operand[i].exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000; | |
1710 | } | |
1711 | else | |
1712 | { | |
1713 | operand[i].exp.X_add_number = | |
1714 | ((operand[i].exp.X_add_number & 0xff) ^ 0x80) - 0x80; | |
1715 | } | |
1716 | ||
1717 | /* For BRA/S. */ | |
1718 | if (! size16) | |
1719 | operand[i].exp.X_add_number |= output[op_at[i] / 2]; | |
252b5132 | 1720 | |
36ed2fff | 1721 | fixP = fix_new_exp (frag_now, |
7ee7b84d | 1722 | output - frag_now->fr_literal + op_at[i] / 2, |
36ed2fff JL |
1723 | size, |
1724 | &operand[i].exp, | |
1725 | 1, | |
1726 | type); | |
1727 | fixP->fx_signed = 1; | |
252b5132 | 1728 | } |
7ee7b84d | 1729 | else if (x_mode == MEMIND) |
252b5132 | 1730 | { |
252b5132 RH |
1731 | check_operand (operand + i, 0xff, "@@"); |
1732 | fix_new_exp (frag_now, | |
1733 | output - frag_now->fr_literal + 1, | |
1734 | 1, | |
1735 | &operand[i].exp, | |
1736 | 0, | |
1737 | R_MEM_INDIRECT); | |
1738 | } | |
7ee7b84d MS |
1739 | else if (x_mode == VECIND) |
1740 | { | |
1741 | check_operand (operand + i, 0x7f, "@@"); | |
1742 | /* FIXME: approximating the effect of "B31" here... | |
1743 | This is very hackish, and ought to be done a better way. */ | |
1744 | operand[i].exp.X_add_number |= 0x80; | |
1745 | fix_new_exp (frag_now, | |
1746 | output - frag_now->fr_literal + 1, | |
1747 | 1, | |
1748 | &operand[i].exp, | |
1749 | 0, | |
1750 | R_MEM_INDIRECT); | |
1751 | } | |
252b5132 RH |
1752 | else if (x & ABSJMP) |
1753 | { | |
3c1ba8a3 | 1754 | int where = 0; |
7ee7b84d | 1755 | bfd_reloc_code_real_type reloc_type = R_JMPL1; |
3c1ba8a3 JL |
1756 | |
1757 | #ifdef OBJ_ELF | |
1758 | /* To be compatible with the proposed H8 ELF format, we | |
1759 | want the relocation's offset to point to the first byte | |
1760 | that will be modified, not to the start of the instruction. */ | |
7ee7b84d MS |
1761 | |
1762 | if ((operand->mode & SIZE) == L_32) | |
1763 | { | |
1764 | where = 2; | |
1765 | reloc_type = R_RELLONG; | |
1766 | } | |
1767 | else | |
1768 | where = 1; | |
3c1ba8a3 | 1769 | #endif |
de342d07 | 1770 | |
70d6ecf3 | 1771 | /* This jmp may be a jump or a branch. */ |
252b5132 | 1772 | |
7ee7b84d MS |
1773 | check_operand (operand + i, |
1774 | SXmode ? 0xffffffff : Hmode ? 0xffffff : 0xffff, | |
1775 | "@"); | |
3048287a | 1776 | |
252b5132 | 1777 | if (operand[i].exp.X_add_number & 1) |
3048287a NC |
1778 | as_warn (_("branch operand has odd offset (%lx)\n"), |
1779 | (unsigned long) operand->exp.X_add_number); | |
1780 | ||
252b5132 | 1781 | if (!Hmode) |
70d6ecf3 | 1782 | operand[i].exp.X_add_number = |
4132022d | 1783 | ((operand[i].exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000; |
252b5132 | 1784 | fix_new_exp (frag_now, |
3c1ba8a3 | 1785 | output - frag_now->fr_literal + where, |
252b5132 RH |
1786 | 4, |
1787 | &operand[i].exp, | |
1788 | 0, | |
7ee7b84d | 1789 | reloc_type); |
252b5132 RH |
1790 | } |
1791 | } | |
252b5132 RH |
1792 | } |
1793 | ||
70d6ecf3 AM |
1794 | /* Try to give an intelligent error message for common and simple to |
1795 | detect errors. */ | |
3048287a | 1796 | |
252b5132 | 1797 | static void |
a720f7bc KD |
1798 | clever_message (instruction, operand) |
1799 | const struct h8_instruction *instruction; | |
252b5132 RH |
1800 | struct h8_op *operand; |
1801 | { | |
70d6ecf3 | 1802 | /* Find out if there was more than one possible opcode. */ |
252b5132 | 1803 | |
a720f7bc | 1804 | if ((instruction + 1)->idx != instruction->idx) |
252b5132 | 1805 | { |
3048287a | 1806 | int argn; |
252b5132 | 1807 | |
70d6ecf3 AM |
1808 | /* Only one opcode of this flavour, try to guess which operand |
1809 | didn't match. */ | |
a720f7bc | 1810 | for (argn = 0; argn < instruction->noperands; argn++) |
252b5132 | 1811 | { |
a720f7bc | 1812 | switch (instruction->opcode->args.nib[argn]) |
252b5132 RH |
1813 | { |
1814 | case RD16: | |
1815 | if (operand[argn].mode != RD16) | |
1816 | { | |
1817 | as_bad (_("destination operand must be 16 bit register")); | |
1818 | return; | |
1819 | ||
1820 | } | |
1821 | break; | |
1822 | ||
1823 | case RS8: | |
252b5132 RH |
1824 | if (operand[argn].mode != RS8) |
1825 | { | |
1826 | as_bad (_("source operand must be 8 bit register")); | |
1827 | return; | |
1828 | } | |
1829 | break; | |
1830 | ||
1831 | case ABS16DST: | |
1832 | if (operand[argn].mode != ABS16DST) | |
1833 | { | |
1834 | as_bad (_("destination operand must be 16bit absolute address")); | |
1835 | return; | |
1836 | } | |
1837 | break; | |
1838 | case RD8: | |
1839 | if (operand[argn].mode != RD8) | |
1840 | { | |
1841 | as_bad (_("destination operand must be 8 bit register")); | |
1842 | return; | |
1843 | } | |
1844 | break; | |
1845 | ||
252b5132 RH |
1846 | case ABS16SRC: |
1847 | if (operand[argn].mode != ABS16SRC) | |
1848 | { | |
1849 | as_bad (_("source operand must be 16bit absolute address")); | |
1850 | return; | |
1851 | } | |
1852 | break; | |
1853 | ||
1854 | } | |
1855 | } | |
1856 | } | |
1857 | as_bad (_("invalid operands")); | |
1858 | } | |
1859 | ||
70d6ecf3 AM |
1860 | /* This is the guts of the machine-dependent assembler. STR points to |
1861 | a machine dependent instruction. This function is supposed to emit | |
1862 | the frags/bytes it assembles. */ | |
3048287a | 1863 | |
252b5132 RH |
1864 | void |
1865 | md_assemble (str) | |
1866 | char *str; | |
1867 | { | |
1868 | char *op_start; | |
1869 | char *op_end; | |
7ee7b84d | 1870 | struct h8_op operand[3]; |
a720f7bc KD |
1871 | const struct h8_instruction *instruction; |
1872 | const struct h8_instruction *prev_instruction; | |
252b5132 RH |
1873 | |
1874 | char *dot = 0; | |
1875 | char c; | |
7ee7b84d | 1876 | int size, i; |
252b5132 | 1877 | |
70d6ecf3 | 1878 | /* Drop leading whitespace. */ |
252b5132 RH |
1879 | while (*str == ' ') |
1880 | str++; | |
1881 | ||
70d6ecf3 | 1882 | /* Find the op code end. */ |
252b5132 RH |
1883 | for (op_start = op_end = str; |
1884 | *op_end != 0 && *op_end != ' '; | |
1885 | op_end++) | |
1886 | { | |
1887 | if (*op_end == '.') | |
1888 | { | |
1889 | dot = op_end + 1; | |
1890 | *op_end = 0; | |
1891 | op_end += 2; | |
1892 | break; | |
1893 | } | |
1894 | } | |
1895 | ||
252b5132 RH |
1896 | if (op_end == op_start) |
1897 | { | |
1898 | as_bad (_("can't find opcode ")); | |
1899 | } | |
1900 | c = *op_end; | |
1901 | ||
1902 | *op_end = 0; | |
1903 | ||
a720f7bc KD |
1904 | instruction = (const struct h8_instruction *) |
1905 | hash_find (opcode_hash_control, op_start); | |
252b5132 | 1906 | |
a720f7bc | 1907 | if (instruction == NULL) |
252b5132 RH |
1908 | { |
1909 | as_bad (_("unknown opcode")); | |
1910 | return; | |
1911 | } | |
1912 | ||
70d6ecf3 | 1913 | /* We used to set input_line_pointer to the result of get_operands, |
252b5132 RH |
1914 | but that is wrong. Our caller assumes we don't change it. */ |
1915 | ||
7ee7b84d MS |
1916 | operand[0].mode = 0; |
1917 | operand[1].mode = 0; | |
1918 | operand[2].mode = 0; | |
1919 | ||
1920 | if (OP_KIND (instruction->opcode->how) == O_MOVAB | |
1921 | || OP_KIND (instruction->opcode->how) == O_MOVAW | |
1922 | || OP_KIND (instruction->opcode->how) == O_MOVAL) | |
1923 | get_mova_operands (op_end, operand); | |
1924 | else if (OP_KIND (instruction->opcode->how) == O_RTEL | |
1925 | || OP_KIND (instruction->opcode->how) == O_RTSL) | |
1926 | get_rtsl_operands (op_end, operand); | |
1927 | else | |
1928 | get_operands (instruction->noperands, op_end, operand); | |
1929 | ||
252b5132 | 1930 | *op_end = c; |
a720f7bc | 1931 | prev_instruction = instruction; |
252b5132 RH |
1932 | |
1933 | size = SN; | |
1934 | if (dot) | |
1935 | { | |
1936 | switch (*dot) | |
1937 | { | |
1938 | case 'b': | |
1939 | size = SB; | |
1940 | break; | |
1941 | ||
1942 | case 'w': | |
1943 | size = SW; | |
1944 | break; | |
1945 | ||
1946 | case 'l': | |
1947 | size = SL; | |
1948 | break; | |
1949 | } | |
1950 | } | |
a720f7bc | 1951 | instruction = get_specific (instruction, operand, size); |
252b5132 | 1952 | |
a720f7bc | 1953 | if (instruction == 0) |
252b5132 | 1954 | { |
70d6ecf3 | 1955 | /* Couldn't find an opcode which matched the operands. */ |
252b5132 RH |
1956 | char *where = frag_more (2); |
1957 | ||
1958 | where[0] = 0x0; | |
1959 | where[1] = 0x0; | |
a720f7bc | 1960 | clever_message (prev_instruction, operand); |
252b5132 RH |
1961 | |
1962 | return; | |
1963 | } | |
7ee7b84d MS |
1964 | |
1965 | /* This is the earliest point at which we can do this: | |
1966 | any DISP2 operands need to be fixed-up according to | |
1967 | the size of the operation. */ | |
1968 | /* MOVA is a whole different set of rules... */ | |
1969 | if (OP_KIND (instruction->opcode->how) == O_MOVAB || | |
1970 | OP_KIND (instruction->opcode->how) == O_MOVAW || | |
1971 | OP_KIND (instruction->opcode->how) == O_MOVAL) | |
252b5132 | 1972 | { |
7ee7b84d MS |
1973 | if ((operand[1].mode & MODE) == DISP && |
1974 | (operand[1].mode & SIZE) == L_2) | |
1975 | switch (operand[0].mode & MODE) { | |
1976 | case INDEXB: | |
1977 | default: | |
1978 | break; | |
1979 | case INDEXW: | |
1980 | if (operand[1].exp.X_add_number % 2) | |
1981 | as_warn (_("operand/size mis-match")); | |
1982 | operand[1].exp.X_add_number /= 2; | |
1983 | break; | |
1984 | case INDEXL: | |
1985 | if (operand[1].exp.X_add_number % 4) | |
1986 | as_warn (_("operand/size mis-match")); | |
1987 | operand[1].exp.X_add_number /= 4; | |
1988 | break; | |
252b5132 RH |
1989 | } |
1990 | } | |
7ee7b84d MS |
1991 | else |
1992 | { | |
1993 | for (i = 0; i < instruction->noperands; i++) | |
1994 | if ((operand[i].mode & MODE) == DISP && | |
1995 | (operand[i].mode & SIZE) == L_2) | |
1996 | switch (size) { | |
1997 | case SN: | |
1998 | case SB: | |
1999 | default: | |
2000 | break; | |
2001 | case SW: | |
2002 | if (operand[i].exp.X_add_number % 2) | |
2003 | as_warn (_("operand/size mis-match")); | |
2004 | operand[i].exp.X_add_number /= 2; | |
2005 | break; | |
2006 | case SL: | |
2007 | if (operand[i].exp.X_add_number % 4) | |
2008 | as_warn (_("operand/size mis-match")); | |
2009 | operand[i].exp.X_add_number /= 4; | |
2010 | break; | |
2011 | } | |
2012 | } | |
252b5132 | 2013 | |
a720f7bc | 2014 | build_bytes (instruction, operand); |
2c8714f2 NC |
2015 | |
2016 | #ifdef BFD_ASSEMBLER | |
2017 | dwarf2_emit_insn (instruction->length); | |
2018 | #endif | |
252b5132 RH |
2019 | } |
2020 | ||
5facebfc | 2021 | #ifndef BFD_ASSEMBLER |
252b5132 RH |
2022 | void |
2023 | tc_crawl_symbol_chain (headers) | |
70d6ecf3 | 2024 | object_headers *headers ATTRIBUTE_UNUSED; |
252b5132 RH |
2025 | { |
2026 | printf (_("call to tc_crawl_symbol_chain \n")); | |
2027 | } | |
f333765f | 2028 | #endif |
252b5132 RH |
2029 | |
2030 | symbolS * | |
2031 | md_undefined_symbol (name) | |
dbbc7809 | 2032 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
2033 | { |
2034 | return 0; | |
2035 | } | |
2036 | ||
5facebfc | 2037 | #ifndef BFD_ASSEMBLER |
252b5132 RH |
2038 | void |
2039 | tc_headers_hook (headers) | |
70d6ecf3 | 2040 | object_headers *headers ATTRIBUTE_UNUSED; |
252b5132 RH |
2041 | { |
2042 | printf (_("call to tc_headers_hook \n")); | |
2043 | } | |
f333765f | 2044 | #endif |
252b5132 RH |
2045 | |
2046 | /* Various routines to kill one day */ | |
2047 | /* Equal to MAX_PRECISION in atof-ieee.c */ | |
2048 | #define MAX_LITTLENUMS 6 | |
2049 | ||
70d6ecf3 AM |
2050 | /* Turn a string in input_line_pointer into a floating point constant |
2051 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
bc0d738a | 2052 | of LITTLENUMS emitted is stored in *SIZEP. An error message is |
70d6ecf3 | 2053 | returned, or NULL on OK. */ |
bc0d738a | 2054 | |
252b5132 RH |
2055 | char * |
2056 | md_atof (type, litP, sizeP) | |
2057 | char type; | |
2058 | char *litP; | |
2059 | int *sizeP; | |
2060 | { | |
2061 | int prec; | |
2062 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
2063 | LITTLENUM_TYPE *wordP; | |
2064 | char *t; | |
252b5132 RH |
2065 | |
2066 | switch (type) | |
2067 | { | |
2068 | case 'f': | |
2069 | case 'F': | |
2070 | case 's': | |
2071 | case 'S': | |
2072 | prec = 2; | |
2073 | break; | |
2074 | ||
2075 | case 'd': | |
2076 | case 'D': | |
2077 | case 'r': | |
2078 | case 'R': | |
2079 | prec = 4; | |
2080 | break; | |
2081 | ||
2082 | case 'x': | |
2083 | case 'X': | |
2084 | prec = 6; | |
2085 | break; | |
2086 | ||
2087 | case 'p': | |
2088 | case 'P': | |
2089 | prec = 6; | |
2090 | break; | |
2091 | ||
2092 | default: | |
2093 | *sizeP = 0; | |
2094 | return _("Bad call to MD_ATOF()"); | |
2095 | } | |
2096 | t = atof_ieee (input_line_pointer, type, words); | |
2097 | if (t) | |
2098 | input_line_pointer = t; | |
2099 | ||
2100 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
2101 | for (wordP = words; prec--;) | |
2102 | { | |
2103 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
2104 | litP += sizeof (LITTLENUM_TYPE); | |
2105 | } | |
2106 | return 0; | |
2107 | } | |
2108 | \f | |
5a38dc70 | 2109 | const char *md_shortopts = ""; |
252b5132 RH |
2110 | struct option md_longopts[] = { |
2111 | {NULL, no_argument, NULL, 0} | |
2112 | }; | |
70d6ecf3 AM |
2113 | |
2114 | size_t md_longopts_size = sizeof (md_longopts); | |
252b5132 RH |
2115 | |
2116 | int | |
2117 | md_parse_option (c, arg) | |
dbbc7809 JL |
2118 | int c ATTRIBUTE_UNUSED; |
2119 | char *arg ATTRIBUTE_UNUSED; | |
252b5132 RH |
2120 | { |
2121 | return 0; | |
2122 | } | |
2123 | ||
2124 | void | |
2125 | md_show_usage (stream) | |
dbbc7809 | 2126 | FILE *stream ATTRIBUTE_UNUSED; |
252b5132 RH |
2127 | { |
2128 | } | |
2129 | \f | |
3048287a NC |
2130 | void tc_aout_fix_to_chars PARAMS ((void)); |
2131 | ||
252b5132 RH |
2132 | void |
2133 | tc_aout_fix_to_chars () | |
2134 | { | |
2135 | printf (_("call to tc_aout_fix_to_chars \n")); | |
2136 | abort (); | |
2137 | } | |
2138 | ||
2139 | void | |
2140 | md_convert_frag (headers, seg, fragP) | |
36ed2fff JL |
2141 | #ifdef BFD_ASSEMBLER |
2142 | bfd *headers ATTRIBUTE_UNUSED; | |
2143 | #else | |
dbbc7809 | 2144 | object_headers *headers ATTRIBUTE_UNUSED; |
36ed2fff | 2145 | #endif |
dbbc7809 JL |
2146 | segT seg ATTRIBUTE_UNUSED; |
2147 | fragS *fragP ATTRIBUTE_UNUSED; | |
252b5132 RH |
2148 | { |
2149 | printf (_("call to md_convert_frag \n")); | |
2150 | abort (); | |
2151 | } | |
2152 | ||
3c1ba8a3 JL |
2153 | #ifdef BFD_ASSEMBLER |
2154 | valueT | |
2155 | md_section_align (segment, size) | |
2156 | segT segment; | |
2157 | valueT size; | |
2158 | { | |
2159 | int align = bfd_get_section_alignment (stdoutput, segment); | |
2160 | return ((size + (1 << align) - 1) & (-1 << align)); | |
2161 | } | |
2162 | #else | |
70d6ecf3 | 2163 | valueT |
252b5132 RH |
2164 | md_section_align (seg, size) |
2165 | segT seg; | |
2166 | valueT size; | |
2167 | { | |
70d6ecf3 | 2168 | return ((size + (1 << section_alignment[(int) seg]) - 1) |
cc8a6dd0 | 2169 | & (-1 << section_alignment[(int) seg])); |
252b5132 | 2170 | } |
3c1ba8a3 JL |
2171 | #endif |
2172 | ||
252b5132 RH |
2173 | |
2174 | void | |
94f592af | 2175 | md_apply_fix3 (fixP, valP, seg) |
252b5132 | 2176 | fixS *fixP; |
94f592af NC |
2177 | valueT *valP; |
2178 | segT seg ATTRIBUTE_UNUSED; | |
252b5132 RH |
2179 | { |
2180 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
a161fe53 | 2181 | long val = *valP; |
252b5132 RH |
2182 | |
2183 | switch (fixP->fx_size) | |
2184 | { | |
2185 | case 1: | |
2186 | *buf++ = val; | |
2187 | break; | |
2188 | case 2: | |
2189 | *buf++ = (val >> 8); | |
2190 | *buf++ = val; | |
2191 | break; | |
2192 | case 4: | |
2193 | *buf++ = (val >> 24); | |
2194 | *buf++ = (val >> 16); | |
2195 | *buf++ = (val >> 8); | |
2196 | *buf++ = val; | |
2197 | break; | |
2198 | default: | |
2199 | abort (); | |
2200 | } | |
94f592af NC |
2201 | |
2202 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
2203 | fixP->fx_done = 1; | |
252b5132 RH |
2204 | } |
2205 | ||
2206 | int | |
2207 | md_estimate_size_before_relax (fragP, segment_type) | |
dbbc7809 JL |
2208 | register fragS *fragP ATTRIBUTE_UNUSED; |
2209 | register segT segment_type ATTRIBUTE_UNUSED; | |
252b5132 RH |
2210 | { |
2211 | printf (_("call tomd_estimate_size_before_relax \n")); | |
2212 | abort (); | |
2213 | } | |
2214 | ||
70d6ecf3 | 2215 | /* Put number into target byte order. */ |
252b5132 RH |
2216 | void |
2217 | md_number_to_chars (ptr, use, nbytes) | |
2218 | char *ptr; | |
2219 | valueT use; | |
2220 | int nbytes; | |
2221 | { | |
2222 | number_to_chars_bigendian (ptr, use, nbytes); | |
2223 | } | |
70d6ecf3 | 2224 | |
252b5132 RH |
2225 | long |
2226 | md_pcrel_from (fixP) | |
dbbc7809 | 2227 | fixS *fixP ATTRIBUTE_UNUSED; |
252b5132 RH |
2228 | { |
2229 | abort (); | |
2230 | } | |
2231 | ||
5facebfc | 2232 | #ifndef BFD_ASSEMBLER |
252b5132 RH |
2233 | void |
2234 | tc_reloc_mangle (fix_ptr, intr, base) | |
2235 | fixS *fix_ptr; | |
2236 | struct internal_reloc *intr; | |
2237 | bfd_vma base; | |
2238 | ||
2239 | { | |
2240 | symbolS *symbol_ptr; | |
2241 | ||
2242 | symbol_ptr = fix_ptr->fx_addsy; | |
2243 | ||
2244 | /* If this relocation is attached to a symbol then it's ok | |
70d6ecf3 | 2245 | to output it. */ |
252b5132 RH |
2246 | if (fix_ptr->fx_r_type == TC_CONS_RELOC) |
2247 | { | |
2248 | /* cons likes to create reloc32's whatever the size of the reloc.. | |
2249 | */ | |
2250 | switch (fix_ptr->fx_size) | |
2251 | { | |
2252 | case 4: | |
2253 | intr->r_type = R_RELLONG; | |
2254 | break; | |
2255 | case 2: | |
2256 | intr->r_type = R_RELWORD; | |
2257 | break; | |
2258 | case 1: | |
2259 | intr->r_type = R_RELBYTE; | |
2260 | break; | |
2261 | default: | |
2262 | abort (); | |
252b5132 | 2263 | } |
252b5132 RH |
2264 | } |
2265 | else | |
2266 | { | |
2267 | intr->r_type = fix_ptr->fx_r_type; | |
2268 | } | |
2269 | ||
2270 | intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base; | |
2271 | intr->r_offset = fix_ptr->fx_offset; | |
2272 | ||
2273 | if (symbol_ptr) | |
2274 | { | |
2275 | if (symbol_ptr->sy_number != -1) | |
2276 | intr->r_symndx = symbol_ptr->sy_number; | |
2277 | else | |
2278 | { | |
2279 | symbolS *segsym; | |
2280 | ||
2281 | /* This case arises when a reference is made to `.'. */ | |
2282 | segsym = seg_info (S_GET_SEGMENT (symbol_ptr))->dot; | |
2283 | if (segsym == NULL) | |
2284 | intr->r_symndx = -1; | |
2285 | else | |
2286 | { | |
2287 | intr->r_symndx = segsym->sy_number; | |
2288 | intr->r_offset += S_GET_VALUE (symbol_ptr); | |
2289 | } | |
2290 | } | |
2291 | } | |
2292 | else | |
2293 | intr->r_symndx = -1; | |
252b5132 | 2294 | } |
5facebfc | 2295 | #else /* BFD_ASSEMBLER */ |
f333765f JL |
2296 | arelent * |
2297 | tc_gen_reloc (section, fixp) | |
2298 | asection *section ATTRIBUTE_UNUSED; | |
2299 | fixS *fixp; | |
2300 | { | |
2301 | arelent *rel; | |
2302 | bfd_reloc_code_real_type r_type; | |
2303 | ||
de342d07 JL |
2304 | if (fixp->fx_addsy && fixp->fx_subsy) |
2305 | { | |
2306 | if ((S_GET_SEGMENT (fixp->fx_addsy) != S_GET_SEGMENT (fixp->fx_subsy)) | |
2307 | || S_GET_SEGMENT (fixp->fx_addsy) == undefined_section) | |
2308 | { | |
2309 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
2310 | "Difference of symbols in different sections is not supported"); | |
2311 | return NULL; | |
2312 | } | |
2313 | } | |
2314 | ||
f333765f JL |
2315 | rel = (arelent *) xmalloc (sizeof (arelent)); |
2316 | rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); | |
2317 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
2318 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
2319 | rel->addend = fixp->fx_offset; | |
2320 | ||
2321 | r_type = fixp->fx_r_type; | |
2322 | ||
2323 | #define DEBUG 0 | |
2324 | #if DEBUG | |
2325 | fprintf (stderr, "%s\n", bfd_get_reloc_code_name (r_type)); | |
2326 | fflush(stderr); | |
2327 | #endif | |
2328 | rel->howto = bfd_reloc_type_lookup (stdoutput, r_type); | |
2329 | if (rel->howto == NULL) | |
2330 | { | |
2331 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
2332 | _("Cannot represent relocation type %s"), | |
2333 | bfd_get_reloc_code_name (r_type)); | |
2334 | return NULL; | |
2335 | } | |
2336 | ||
2337 | return rel; | |
2338 | } | |
2339 | #endif |