Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-z8k.c -- Assemble code for the Zilog Z800n |
c0fecd35 AM |
2 | Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 99, 2000 |
3 | Free Software Foundation. | |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
e0c6ed95 AM |
22 | /* Written By Steve Chamberlain <sac@cygnus.com>. */ |
23 | ||
252b5132 RH |
24 | #define DEFINE_TABLE |
25 | #include <stdio.h> | |
26 | ||
27 | #include "opcodes/z8k-opc.h" | |
28 | ||
29 | #include "as.h" | |
30 | #include "bfd.h" | |
31 | #include <ctype.h> | |
32 | ||
63a0b638 AM |
33 | const char comment_chars[] = "!"; |
34 | const char line_comment_chars[] = "#"; | |
35 | const char line_separator_chars[] = ";"; | |
252b5132 RH |
36 | |
37 | extern int machine; | |
38 | extern int coff_flags; | |
39 | int segmented_mode; | |
40 | const int md_reloc_size; | |
41 | ||
252b5132 RH |
42 | void cons (); |
43 | ||
44 | void | |
45 | s_segm () | |
46 | { | |
47 | segmented_mode = 1; | |
48 | machine = bfd_mach_z8001; | |
49 | coff_flags = F_Z8001; | |
50 | } | |
51 | ||
52 | void | |
53 | s_unseg () | |
54 | { | |
55 | segmented_mode = 0; | |
56 | machine = bfd_mach_z8002; | |
57 | coff_flags = F_Z8002; | |
58 | } | |
59 | ||
e0c6ed95 | 60 | static void |
252b5132 RH |
61 | even () |
62 | { | |
63 | frag_align (1, 0, 0); | |
64 | record_alignment (now_seg, 1); | |
65 | } | |
66 | ||
67 | void obj_coff_section (); | |
68 | ||
69 | int | |
70 | tohex (c) | |
71 | int c; | |
72 | { | |
73 | if (isdigit (c)) | |
74 | return c - '0'; | |
75 | if (islower (c)) | |
76 | return c - 'a' + 10; | |
77 | return c - 'A' + 10; | |
78 | } | |
79 | ||
80 | void | |
81 | sval () | |
82 | { | |
252b5132 RH |
83 | SKIP_WHITESPACE (); |
84 | if (*input_line_pointer == '\'') | |
85 | { | |
86 | int c; | |
87 | input_line_pointer++; | |
88 | c = *input_line_pointer++; | |
89 | while (c != '\'') | |
90 | { | |
91 | if (c == '%') | |
92 | { | |
93 | c = (tohex (input_line_pointer[0]) << 4) | |
94 | | tohex (input_line_pointer[1]); | |
95 | input_line_pointer += 2; | |
96 | } | |
97 | FRAG_APPEND_1_CHAR (c); | |
98 | c = *input_line_pointer++; | |
99 | } | |
100 | demand_empty_rest_of_line (); | |
101 | } | |
252b5132 | 102 | } |
e0c6ed95 AM |
103 | |
104 | /* This table describes all the machine specific pseudo-ops the assembler | |
105 | has to support. The fields are: | |
106 | pseudo-op name without dot | |
107 | function to call to execute this pseudo-op | |
108 | Integer arg to pass to the function | |
109 | */ | |
110 | ||
111 | const pseudo_typeS md_pseudo_table[] = { | |
112 | {"int" , cons , 2}, | |
113 | {"data.b" , cons , 1}, | |
114 | {"data.w" , cons , 2}, | |
115 | {"data.l" , cons , 4}, | |
116 | {"form" , listing_psize , 0}, | |
117 | {"heading", listing_title , 0}, | |
118 | {"import" , s_ignore , 0}, | |
119 | {"page" , listing_eject , 0}, | |
120 | {"program", s_ignore , 0}, | |
121 | {"z8001" , s_segm , 0}, | |
122 | {"z8002" , s_unseg , 0}, | |
123 | ||
124 | {"segm" , s_segm , 0}, | |
125 | {"unsegm" , s_unseg , 0}, | |
126 | {"unseg" , s_unseg , 0}, | |
127 | {"name" , s_app_file , 0}, | |
128 | {"global" , s_globl , 0}, | |
129 | {"wval" , cons , 2}, | |
130 | {"lval" , cons , 4}, | |
131 | {"bval" , cons , 1}, | |
132 | {"sval" , sval , 0}, | |
133 | {"rsect" , obj_coff_section, 0}, | |
134 | {"sect" , obj_coff_section, 0}, | |
135 | {"block" , s_space , 0}, | |
136 | {"even" , even , 0}, | |
137 | {0 , 0 , 0} | |
252b5132 RH |
138 | }; |
139 | ||
140 | const char EXP_CHARS[] = "eE"; | |
141 | ||
e0c6ed95 AM |
142 | /* Chars that mean this number is a floating point constant. |
143 | As in 0f12.456 | |
144 | or 0d1.2345e12 */ | |
252b5132 RH |
145 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; |
146 | ||
e0c6ed95 AM |
147 | /* Opcode mnemonics. */ |
148 | static struct hash_control *opcode_hash_control; | |
252b5132 RH |
149 | |
150 | void | |
151 | md_begin () | |
152 | { | |
153 | opcode_entry_type *opcode; | |
154 | char *prev_name = ""; | |
155 | int idx = 0; | |
156 | ||
157 | opcode_hash_control = hash_new (); | |
158 | ||
159 | for (opcode = z8k_table; opcode->name; opcode++) | |
160 | { | |
e0c6ed95 | 161 | /* Only enter unique codes into the table. */ |
252b5132 RH |
162 | char *src = opcode->name; |
163 | ||
164 | if (strcmp (opcode->name, prev_name)) | |
165 | { | |
166 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
167 | idx++; | |
168 | } | |
169 | opcode->idx = idx; | |
170 | prev_name = opcode->name; | |
171 | } | |
172 | ||
e0c6ed95 | 173 | /* Default to z8002. */ |
252b5132 RH |
174 | s_unseg (); |
175 | ||
e0c6ed95 | 176 | /* Insert the pseudo ops, too. */ |
252b5132 RH |
177 | for (idx = 0; md_pseudo_table[idx].poc_name; idx++) |
178 | { | |
179 | opcode_entry_type *fake_opcode; | |
180 | fake_opcode = (opcode_entry_type *) malloc (sizeof (opcode_entry_type)); | |
181 | fake_opcode->name = md_pseudo_table[idx].poc_name, | |
182 | fake_opcode->func = (void *) (md_pseudo_table + idx); | |
183 | fake_opcode->opcode = 250; | |
184 | hash_insert (opcode_hash_control, fake_opcode->name, fake_opcode); | |
185 | } | |
186 | ||
187 | linkrelax = 1; | |
188 | } | |
189 | ||
190 | struct z8k_exp | |
191 | { | |
192 | char *e_beg; | |
193 | char *e_end; | |
194 | expressionS e_exp; | |
195 | }; | |
e0c6ed95 | 196 | |
252b5132 RH |
197 | typedef struct z8k_op |
198 | { | |
e0c6ed95 AM |
199 | /* 'b','w','r','q'. */ |
200 | char regsize; | |
201 | ||
202 | /* 0 .. 15. */ | |
203 | unsigned int reg; | |
252b5132 RH |
204 | |
205 | int mode; | |
206 | ||
e0c6ed95 AM |
207 | /* Any other register associated with the mode. */ |
208 | unsigned int x_reg; | |
209 | ||
210 | /* Any expression. */ | |
211 | expressionS exp; | |
252b5132 RH |
212 | } |
213 | ||
214 | op_type; | |
215 | ||
216 | static expressionS *da_operand; | |
217 | static expressionS *imm_operand; | |
218 | ||
219 | int reg[16]; | |
220 | int the_cc; | |
221 | int the_ctrl; | |
222 | int the_flags; | |
223 | int the_interrupt; | |
224 | ||
225 | char * | |
c0fecd35 AM |
226 | whatreg (reg, src) |
227 | int *reg; | |
228 | char *src; | |
252b5132 RH |
229 | { |
230 | if (isdigit (src[1])) | |
231 | { | |
232 | *reg = (src[0] - '0') * 10 + src[1] - '0'; | |
233 | return src + 2; | |
234 | } | |
235 | else | |
236 | { | |
237 | *reg = (src[0] - '0'); | |
238 | return src + 1; | |
239 | } | |
240 | } | |
241 | ||
e0c6ed95 | 242 | /* Parse operands |
252b5132 | 243 | |
e0c6ed95 AM |
244 | rh0-rh7, rl0-rl7 |
245 | r0-r15 | |
246 | rr0-rr14 | |
247 | rq0--rq12 | |
248 | WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp | |
249 | r0l,r0h,..r7l,r7h | |
250 | @WREG | |
251 | @WREG+ | |
252 | @-WREG | |
253 | #const | |
254 | */ | |
252b5132 | 255 | |
bc0d738a NC |
256 | /* Try to parse a reg name. Return a pointer to the first character |
257 | in SRC after the reg name. */ | |
258 | ||
252b5132 | 259 | char * |
c0fecd35 AM |
260 | parse_reg (src, mode, reg) |
261 | char *src; | |
262 | int *mode; | |
263 | unsigned int *reg; | |
252b5132 RH |
264 | { |
265 | char *res = 0; | |
266 | char regno; | |
267 | ||
268 | if (src[0] == 's' && src[1] == 'p') | |
269 | { | |
270 | if (segmented_mode) | |
e0c6ed95 AM |
271 | { |
272 | *mode = CLASS_REG_LONG; | |
273 | *reg = 14; | |
274 | } | |
252b5132 | 275 | else |
e0c6ed95 AM |
276 | { |
277 | *mode = CLASS_REG_WORD; | |
278 | *reg = 15; | |
279 | } | |
252b5132 RH |
280 | return src + 2; |
281 | } | |
282 | if (src[0] == 'r') | |
283 | { | |
284 | if (src[1] == 'r') | |
e0c6ed95 AM |
285 | { |
286 | *mode = CLASS_REG_LONG; | |
287 | res = whatreg (reg, src + 2); | |
252b5132 RH |
288 | regno = *reg; |
289 | if (regno > 14) | |
e0c6ed95 AM |
290 | as_warn (_("register rr%d, out of range."), regno); |
291 | } | |
252b5132 | 292 | else if (src[1] == 'h') |
e0c6ed95 AM |
293 | { |
294 | *mode = CLASS_REG_BYTE; | |
295 | res = whatreg (reg, src + 2); | |
252b5132 RH |
296 | regno = *reg; |
297 | if (regno > 7) | |
e0c6ed95 AM |
298 | as_warn (_("register rh%d, out of range."), regno); |
299 | } | |
252b5132 | 300 | else if (src[1] == 'l') |
e0c6ed95 AM |
301 | { |
302 | *mode = CLASS_REG_BYTE; | |
303 | res = whatreg (reg, src + 2); | |
252b5132 RH |
304 | regno = *reg; |
305 | if (regno > 7) | |
e0c6ed95 AM |
306 | as_warn (_("register rl%d, out of range."), regno); |
307 | *reg += 8; | |
308 | } | |
252b5132 | 309 | else if (src[1] == 'q') |
e0c6ed95 AM |
310 | { |
311 | *mode = CLASS_REG_QUAD; | |
312 | res = whatreg (reg, src + 2); | |
252b5132 RH |
313 | regno = *reg; |
314 | if (regno > 12) | |
e0c6ed95 AM |
315 | as_warn (_("register rq%d, out of range."), regno); |
316 | } | |
252b5132 | 317 | else |
e0c6ed95 AM |
318 | { |
319 | *mode = CLASS_REG_WORD; | |
320 | res = whatreg (reg, src + 1); | |
252b5132 RH |
321 | regno = *reg; |
322 | if (regno > 15) | |
e0c6ed95 AM |
323 | as_warn (_("register r%d, out of range."), regno); |
324 | } | |
252b5132 RH |
325 | } |
326 | return res; | |
252b5132 RH |
327 | } |
328 | ||
329 | char * | |
c0fecd35 AM |
330 | parse_exp (s, op) |
331 | char *s; | |
332 | expressionS *op; | |
252b5132 RH |
333 | { |
334 | char *save = input_line_pointer; | |
335 | char *new; | |
336 | ||
337 | input_line_pointer = s; | |
338 | expression (op); | |
339 | if (op->X_op == O_absent) | |
340 | as_bad (_("missing operand")); | |
341 | new = input_line_pointer; | |
342 | input_line_pointer = save; | |
343 | return new; | |
344 | } | |
345 | ||
346 | /* The many forms of operand: | |
347 | ||
348 | <rb> | |
349 | <r> | |
350 | <rr> | |
351 | <rq> | |
352 | @r | |
353 | #exp | |
354 | exp | |
355 | exp(r) | |
356 | r(#exp) | |
357 | r(r) | |
252b5132 RH |
358 | */ |
359 | ||
e0c6ed95 | 360 | static char * |
c0fecd35 AM |
361 | checkfor (ptr, what) |
362 | char *ptr; | |
363 | char what; | |
252b5132 RH |
364 | { |
365 | if (*ptr == what) | |
366 | ptr++; | |
367 | else | |
e0c6ed95 AM |
368 | as_bad (_("expected %c"), what); |
369 | ||
252b5132 RH |
370 | return ptr; |
371 | } | |
372 | ||
e0c6ed95 AM |
373 | /* Make sure the mode supplied is the size of a word. */ |
374 | ||
252b5132 | 375 | static void |
c0fecd35 AM |
376 | regword (mode, string) |
377 | int mode; | |
378 | char *string; | |
252b5132 RH |
379 | { |
380 | int ok; | |
381 | ||
382 | ok = CLASS_REG_WORD; | |
383 | if (ok != mode) | |
384 | { | |
385 | as_bad (_("register is wrong size for a word %s"), string); | |
386 | } | |
387 | } | |
388 | ||
e0c6ed95 AM |
389 | /* Make sure the mode supplied is the size of an address. */ |
390 | ||
252b5132 | 391 | static void |
c0fecd35 AM |
392 | regaddr (mode, string) |
393 | int mode; | |
394 | char *string; | |
252b5132 RH |
395 | { |
396 | int ok; | |
397 | ||
398 | ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD; | |
399 | if (ok != mode) | |
400 | { | |
401 | as_bad (_("register is wrong size for address %s"), string); | |
402 | } | |
403 | } | |
404 | ||
405 | struct ctrl_names | |
406 | { | |
e0c6ed95 AM |
407 | int value; |
408 | char *name; | |
252b5132 RH |
409 | }; |
410 | ||
e0c6ed95 AM |
411 | struct ctrl_names ctrl_table[] = { |
412 | 0x2, "fcw", | |
413 | 0X3, "refresh", | |
414 | 0x4, "psapseg", | |
415 | 0x5, "psapoff", | |
416 | 0x5, "psap", | |
417 | 0x6, "nspseg", | |
418 | 0x7, "nspoff", | |
419 | 0x7, "nsp", | |
420 | 0 , 0 | |
252b5132 | 421 | }; |
e0c6ed95 | 422 | |
252b5132 | 423 | static void |
c0fecd35 AM |
424 | get_ctrl_operand (ptr, mode, dst) |
425 | char **ptr; | |
426 | struct z8k_op *mode; | |
427 | unsigned int dst; | |
252b5132 RH |
428 | { |
429 | char *src = *ptr; | |
430 | int r; | |
431 | int i; | |
432 | ||
433 | while (*src == ' ') | |
434 | src++; | |
435 | ||
436 | mode->mode = CLASS_CTRL; | |
437 | for (i = 0; ctrl_table[i].name; i++) | |
438 | { | |
439 | int j; | |
440 | ||
441 | for (j = 0; ctrl_table[i].name[j]; j++) | |
e0c6ed95 AM |
442 | { |
443 | if (ctrl_table[i].name[j] != src[j]) | |
444 | goto fail; | |
445 | } | |
252b5132 RH |
446 | the_ctrl = ctrl_table[i].value; |
447 | *ptr = src + j; | |
448 | return; | |
e0c6ed95 AM |
449 | fail: |
450 | ; | |
252b5132 RH |
451 | } |
452 | the_ctrl = 0; | |
453 | return; | |
454 | } | |
455 | ||
456 | struct flag_names | |
457 | { | |
458 | int value; | |
459 | char *name; | |
460 | ||
461 | }; | |
462 | ||
e0c6ed95 | 463 | struct flag_names flag_table[] = { |
252b5132 RH |
464 | 0x1, "p", |
465 | 0x1, "v", | |
466 | 0x2, "s", | |
467 | 0x4, "z", | |
468 | 0x8, "c", | |
469 | 0x0, "+", | |
470 | 0, 0 | |
471 | }; | |
472 | ||
473 | static void | |
c0fecd35 AM |
474 | get_flags_operand (ptr, mode, dst) |
475 | char **ptr; | |
476 | struct z8k_op *mode; | |
477 | unsigned int dst; | |
252b5132 RH |
478 | { |
479 | char *src = *ptr; | |
480 | int r; | |
481 | int i; | |
482 | int j; | |
483 | ||
484 | while (*src == ' ') | |
485 | src++; | |
486 | ||
487 | mode->mode = CLASS_FLAGS; | |
488 | the_flags = 0; | |
489 | for (j = 0; j <= 9; j++) | |
490 | { | |
e0c6ed95 | 491 | if (!src[j]) |
252b5132 | 492 | goto done; |
e0c6ed95 AM |
493 | for (i = 0; flag_table[i].name; i++) |
494 | { | |
495 | if (flag_table[i].name[0] == src[j]) | |
496 | { | |
497 | the_flags = the_flags | flag_table[i].value; | |
498 | goto match; | |
499 | } | |
500 | } | |
252b5132 RH |
501 | goto done; |
502 | match: | |
e0c6ed95 | 503 | ; |
252b5132 | 504 | } |
e0c6ed95 | 505 | done: |
252b5132 RH |
506 | *ptr = src + j; |
507 | return; | |
508 | } | |
509 | ||
252b5132 RH |
510 | struct interrupt_names |
511 | { | |
512 | int value; | |
513 | char *name; | |
514 | ||
515 | }; | |
516 | ||
517 | struct interrupt_names intr_table[] = | |
518 | { | |
519 | 0x1, "nvi", | |
520 | 0x2, "vi", | |
521 | 0x3, "both", | |
522 | 0x3, "all", | |
523 | 0, 0 | |
524 | }; | |
525 | ||
526 | static void | |
c0fecd35 AM |
527 | get_interrupt_operand (ptr, mode, dst) |
528 | char **ptr; | |
529 | struct z8k_op *mode; | |
530 | unsigned int dst; | |
252b5132 RH |
531 | { |
532 | char *src = *ptr; | |
533 | int r; | |
534 | int i; | |
535 | ||
536 | while (*src == ' ') | |
537 | src++; | |
538 | ||
539 | mode->mode = CLASS_IMM; | |
540 | for (i = 0; intr_table[i].name; i++) | |
541 | { | |
542 | int j; | |
543 | ||
544 | for (j = 0; intr_table[i].name[j]; j++) | |
e0c6ed95 AM |
545 | { |
546 | if (intr_table[i].name[j] != src[j]) | |
547 | goto fail; | |
548 | } | |
252b5132 RH |
549 | the_interrupt = intr_table[i].value; |
550 | *ptr = src + j; | |
551 | return; | |
e0c6ed95 AM |
552 | fail: |
553 | ; | |
252b5132 RH |
554 | } |
555 | the_interrupt = 0x0; | |
556 | return; | |
557 | } | |
558 | ||
559 | struct cc_names | |
560 | { | |
561 | int value; | |
562 | char *name; | |
563 | ||
564 | }; | |
565 | ||
e0c6ed95 | 566 | struct cc_names table[] = { |
252b5132 RH |
567 | 0x0, "f", |
568 | 0x1, "lt", | |
569 | 0x2, "le", | |
570 | 0x3, "ule", | |
571 | 0x4, "ov", | |
572 | 0x4, "pe", | |
573 | 0x5, "mi", | |
574 | 0x6, "eq", | |
575 | 0x6, "z", | |
576 | 0x7, "c", | |
577 | 0x7, "ult", | |
578 | 0x8, "t", | |
579 | 0x9, "ge", | |
580 | 0xa, "gt", | |
581 | 0xb, "ugt", | |
582 | 0xc, "nov", | |
583 | 0xc, "po", | |
584 | 0xd, "pl", | |
585 | 0xe, "ne", | |
586 | 0xe, "nz", | |
587 | 0xf, "nc", | |
588 | 0xf, "uge", | |
e0c6ed95 | 589 | 0 , 0 |
252b5132 RH |
590 | }; |
591 | ||
592 | static void | |
c0fecd35 AM |
593 | get_cc_operand (ptr, mode, dst) |
594 | char **ptr; | |
595 | struct z8k_op *mode; | |
596 | unsigned int dst; | |
252b5132 RH |
597 | { |
598 | char *src = *ptr; | |
599 | int r; | |
600 | int i; | |
601 | ||
602 | while (*src == ' ') | |
603 | src++; | |
604 | ||
605 | mode->mode = CLASS_CC; | |
606 | for (i = 0; table[i].name; i++) | |
607 | { | |
608 | int j; | |
609 | ||
610 | for (j = 0; table[i].name[j]; j++) | |
611 | { | |
612 | if (table[i].name[j] != src[j]) | |
613 | goto fail; | |
614 | } | |
615 | the_cc = table[i].value; | |
616 | *ptr = src + j; | |
617 | return; | |
e0c6ed95 AM |
618 | fail: |
619 | ; | |
252b5132 RH |
620 | } |
621 | the_cc = 0x8; | |
622 | } | |
623 | ||
624 | static void | |
625 | get_operand (ptr, mode, dst) | |
626 | char **ptr; | |
627 | struct z8k_op *mode; | |
628 | unsigned int dst; | |
629 | { | |
630 | char *src = *ptr; | |
631 | char *end; | |
632 | unsigned int num; | |
633 | unsigned int len; | |
634 | unsigned int size; | |
635 | ||
636 | mode->mode = 0; | |
637 | ||
638 | while (*src == ' ') | |
639 | src++; | |
640 | if (*src == '#') | |
641 | { | |
642 | mode->mode = CLASS_IMM; | |
643 | imm_operand = &(mode->exp); | |
644 | src = parse_exp (src + 1, &(mode->exp)); | |
645 | } | |
646 | else if (*src == '@') | |
647 | { | |
648 | int d; | |
649 | ||
650 | mode->mode = CLASS_IR; | |
651 | src = parse_reg (src + 1, &d, &mode->reg); | |
652 | } | |
653 | else | |
654 | { | |
655 | int regn; | |
656 | ||
657 | end = parse_reg (src, &mode->mode, ®n); | |
658 | ||
659 | if (end) | |
660 | { | |
661 | int nw, nr; | |
662 | ||
663 | src = end; | |
664 | if (*src == '(') | |
665 | { | |
666 | src++; | |
667 | end = parse_reg (src, &nw, &nr); | |
668 | if (end) | |
669 | { | |
e0c6ed95 | 670 | /* Got Ra(Rb). */ |
252b5132 RH |
671 | src = end; |
672 | ||
673 | if (*src != ')') | |
e0c6ed95 | 674 | as_bad (_("Missing ) in ra(rb)")); |
252b5132 | 675 | else |
e0c6ed95 | 676 | src++; |
252b5132 RH |
677 | |
678 | regaddr (mode->mode, "ra(rb) ra"); | |
e0c6ed95 AM |
679 | #if 0 |
680 | regword (mode->mode, "ra(rb) rb"); | |
681 | #endif | |
252b5132 RH |
682 | mode->mode = CLASS_BX; |
683 | mode->reg = regn; | |
684 | mode->x_reg = nr; | |
685 | reg[ARG_RX] = nr; | |
686 | } | |
687 | else | |
688 | { | |
e0c6ed95 | 689 | /* Got Ra(disp). */ |
252b5132 RH |
690 | if (*src == '#') |
691 | src++; | |
692 | src = parse_exp (src, &(mode->exp)); | |
693 | src = checkfor (src, ')'); | |
694 | mode->mode = CLASS_BA; | |
695 | mode->reg = regn; | |
696 | mode->x_reg = 0; | |
697 | imm_operand = &(mode->exp); | |
698 | } | |
699 | } | |
700 | else | |
701 | { | |
702 | mode->reg = regn; | |
703 | mode->x_reg = 0; | |
704 | } | |
705 | } | |
706 | else | |
707 | { | |
e0c6ed95 | 708 | /* No initial reg. */ |
252b5132 RH |
709 | src = parse_exp (src, &(mode->exp)); |
710 | if (*src == '(') | |
711 | { | |
712 | src++; | |
713 | end = parse_reg (src, &(mode->mode), ®n); | |
714 | regword (mode->mode, "addr(Ra) ra"); | |
715 | mode->mode = CLASS_X; | |
716 | mode->reg = regn; | |
717 | mode->x_reg = 0; | |
718 | da_operand = &(mode->exp); | |
719 | src = checkfor (end, ')'); | |
720 | } | |
721 | else | |
722 | { | |
e0c6ed95 | 723 | /* Just an address. */ |
252b5132 RH |
724 | mode->mode = CLASS_DA; |
725 | mode->reg = 0; | |
726 | mode->x_reg = 0; | |
727 | da_operand = &(mode->exp); | |
728 | } | |
729 | } | |
730 | } | |
731 | *ptr = src; | |
732 | } | |
733 | ||
e0c6ed95 | 734 | static char * |
252b5132 RH |
735 | get_operands (opcode, op_end, operand) |
736 | opcode_entry_type *opcode; | |
737 | char *op_end; | |
738 | op_type *operand; | |
739 | { | |
740 | char *ptr = op_end; | |
e0c6ed95 AM |
741 | char *savptr; |
742 | ||
252b5132 RH |
743 | switch (opcode->noperands) |
744 | { | |
745 | case 0: | |
746 | operand[0].mode = 0; | |
747 | operand[1].mode = 0; | |
748 | break; | |
749 | ||
750 | case 1: | |
751 | ptr++; | |
752 | if (opcode->arg_info[0] == CLASS_CC) | |
e0c6ed95 AM |
753 | { |
754 | get_cc_operand (&ptr, operand + 0, 0); | |
755 | } | |
252b5132 | 756 | else if (opcode->arg_info[0] == CLASS_FLAGS) |
e0c6ed95 AM |
757 | { |
758 | get_flags_operand (&ptr, operand + 0, 0); | |
759 | } | |
760 | else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2))) | |
761 | { | |
762 | get_interrupt_operand (&ptr, operand + 0, 0); | |
763 | } | |
252b5132 | 764 | else |
e0c6ed95 AM |
765 | { |
766 | get_operand (&ptr, operand + 0, 0); | |
767 | } | |
252b5132 RH |
768 | operand[1].mode = 0; |
769 | break; | |
770 | ||
771 | case 2: | |
772 | ptr++; | |
773 | savptr = ptr; | |
774 | if (opcode->arg_info[0] == CLASS_CC) | |
e0c6ed95 AM |
775 | { |
776 | get_cc_operand (&ptr, operand + 0, 0); | |
777 | } | |
252b5132 | 778 | else if (opcode->arg_info[0] == CLASS_CTRL) |
e0c6ed95 AM |
779 | { |
780 | get_ctrl_operand (&ptr, operand + 0, 0); | |
781 | if (the_ctrl == 0) | |
782 | { | |
783 | ptr = savptr; | |
784 | get_operand (&ptr, operand + 0, 0); | |
785 | if (ptr == 0) | |
786 | return; | |
787 | if (*ptr == ',') | |
788 | ptr++; | |
789 | get_ctrl_operand (&ptr, operand + 1, 1); | |
790 | return ptr; | |
791 | } | |
792 | } | |
252b5132 | 793 | else |
e0c6ed95 AM |
794 | { |
795 | get_operand (&ptr, operand + 0, 0); | |
796 | } | |
252b5132 | 797 | if (ptr == 0) |
e0c6ed95 | 798 | return; |
252b5132 | 799 | if (*ptr == ',') |
e0c6ed95 | 800 | ptr++; |
252b5132 RH |
801 | get_operand (&ptr, operand + 1, 1); |
802 | break; | |
803 | ||
804 | case 3: | |
805 | ptr++; | |
806 | get_operand (&ptr, operand + 0, 0); | |
807 | if (*ptr == ',') | |
808 | ptr++; | |
809 | get_operand (&ptr, operand + 1, 1); | |
810 | if (*ptr == ',') | |
811 | ptr++; | |
812 | get_operand (&ptr, operand + 2, 2); | |
813 | break; | |
814 | ||
815 | case 4: | |
816 | ptr++; | |
817 | get_operand (&ptr, operand + 0, 0); | |
818 | if (*ptr == ',') | |
819 | ptr++; | |
820 | get_operand (&ptr, operand + 1, 1); | |
821 | if (*ptr == ',') | |
822 | ptr++; | |
823 | get_operand (&ptr, operand + 2, 2); | |
824 | if (*ptr == ',') | |
825 | ptr++; | |
826 | get_cc_operand (&ptr, operand + 3, 3); | |
827 | break; | |
e0c6ed95 | 828 | |
252b5132 RH |
829 | default: |
830 | abort (); | |
831 | } | |
832 | ||
833 | return ptr; | |
834 | } | |
835 | ||
836 | /* Passed a pointer to a list of opcodes which use different | |
e0c6ed95 AM |
837 | addressing modes. Return the opcode which matches the opcodes |
838 | provided. */ | |
252b5132 | 839 | |
e0c6ed95 | 840 | static opcode_entry_type * |
c0fecd35 AM |
841 | get_specific (opcode, operands) |
842 | opcode_entry_type *opcode; | |
843 | op_type *operands; | |
252b5132 RH |
844 | |
845 | { | |
846 | opcode_entry_type *this_try = opcode; | |
847 | int found = 0; | |
848 | unsigned int noperands = opcode->noperands; | |
849 | ||
850 | unsigned int dispreg; | |
851 | unsigned int this_index = opcode->idx; | |
852 | ||
853 | while (this_index == opcode->idx && !found) | |
854 | { | |
855 | unsigned int i; | |
856 | ||
857 | this_try = opcode++; | |
858 | for (i = 0; i < noperands; i++) | |
859 | { | |
860 | int mode = operands[i].mode; | |
861 | ||
862 | if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK)) | |
863 | { | |
e0c6ed95 AM |
864 | /* It could be an pc rel operand, if this is a da mode |
865 | and we like disps, then insert it. */ | |
252b5132 RH |
866 | |
867 | if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP) | |
868 | { | |
e0c6ed95 | 869 | /* This is the case. */ |
252b5132 RH |
870 | operands[i].mode = CLASS_DISP; |
871 | } | |
872 | else if (mode == CLASS_BA && this_try->arg_info[i]) | |
873 | { | |
e0c6ed95 AM |
874 | /* Can't think of a way to turn what we've been |
875 | given into something that's OK. */ | |
252b5132 RH |
876 | goto fail; |
877 | } | |
878 | else if (this_try->arg_info[i] & CLASS_PR) | |
879 | { | |
880 | if (mode == CLASS_REG_LONG && segmented_mode) | |
881 | { | |
e0c6ed95 | 882 | /* OK. */ |
252b5132 RH |
883 | } |
884 | else if (mode == CLASS_REG_WORD && !segmented_mode) | |
885 | { | |
e0c6ed95 | 886 | /* OK. */ |
252b5132 RH |
887 | } |
888 | else | |
889 | goto fail; | |
890 | } | |
891 | else | |
892 | goto fail; | |
893 | } | |
894 | switch (mode & CLASS_MASK) | |
895 | { | |
896 | default: | |
897 | break; | |
898 | case CLASS_X: | |
899 | case CLASS_IR: | |
900 | case CLASS_BA: | |
901 | case CLASS_BX: | |
902 | case CLASS_DISP: | |
903 | case CLASS_REG: | |
904 | case CLASS_REG_WORD: | |
905 | case CLASS_REG_BYTE: | |
906 | case CLASS_REG_QUAD: | |
907 | case CLASS_REG_LONG: | |
908 | case CLASS_REGN0: | |
909 | reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg; | |
910 | break; | |
911 | } | |
912 | } | |
913 | ||
914 | found = 1; | |
e0c6ed95 AM |
915 | fail: |
916 | ; | |
252b5132 RH |
917 | } |
918 | if (found) | |
919 | return this_try; | |
920 | else | |
921 | return 0; | |
922 | } | |
923 | ||
924 | static void | |
c0fecd35 AM |
925 | check_operand (operand, width, string) |
926 | struct z8k_op *operand; | |
927 | unsigned int width; | |
928 | char *string; | |
252b5132 RH |
929 | { |
930 | if (operand->exp.X_add_symbol == 0 | |
931 | && operand->exp.X_op_symbol == 0) | |
932 | { | |
933 | ||
e0c6ed95 AM |
934 | /* No symbol involved, let's look at offset, it's dangerous if |
935 | any of the high bits are not 0 or ff's, find out by oring or | |
936 | anding with the width and seeing if the answer is 0 or all | |
937 | fs. */ | |
252b5132 RH |
938 | if ((operand->exp.X_add_number & ~width) != 0 && |
939 | (operand->exp.X_add_number | width) != (~0)) | |
940 | { | |
e0c6ed95 AM |
941 | as_warn (_("operand %s0x%x out of range."), |
942 | string, operand->exp.X_add_number); | |
252b5132 RH |
943 | } |
944 | } | |
945 | ||
946 | } | |
947 | ||
948 | static char buffer[20]; | |
949 | ||
950 | static void | |
c0fecd35 AM |
951 | newfix (ptr, type, operand) |
952 | int ptr; | |
953 | int type; | |
954 | expressionS *operand; | |
252b5132 RH |
955 | { |
956 | if (operand->X_add_symbol | |
957 | || operand->X_op_symbol | |
958 | || operand->X_add_number) | |
959 | { | |
960 | fix_new_exp (frag_now, | |
961 | ptr, | |
962 | 1, | |
963 | operand, | |
964 | 0, | |
965 | type); | |
966 | } | |
967 | } | |
968 | ||
969 | static char * | |
c0fecd35 AM |
970 | apply_fix (ptr, type, operand, size) |
971 | char *ptr; | |
972 | int type; | |
973 | expressionS *operand; | |
974 | int size; | |
252b5132 RH |
975 | { |
976 | int n = operand->X_add_number; | |
977 | ||
978 | operand->X_add_number = n; | |
979 | newfix ((ptr - buffer) / 2, type, operand); | |
980 | #if 1 | |
981 | switch (size) | |
982 | { | |
e0c6ed95 | 983 | case 8: /* 8 nibbles == 32 bits */ |
252b5132 RH |
984 | *ptr++ = n >> 28; |
985 | *ptr++ = n >> 24; | |
986 | *ptr++ = n >> 20; | |
987 | *ptr++ = n >> 16; | |
e0c6ed95 | 988 | case 4: /* 4 niblles == 16 bits */ |
252b5132 RH |
989 | *ptr++ = n >> 12; |
990 | *ptr++ = n >> 8; | |
991 | case 2: | |
992 | *ptr++ = n >> 4; | |
993 | case 1: | |
994 | *ptr++ = n >> 0; | |
995 | break; | |
996 | } | |
997 | #endif | |
998 | return ptr; | |
999 | ||
1000 | } | |
1001 | ||
e0c6ed95 AM |
1002 | /* Now we know what sort of opcodes it is. Let's build the bytes. */ |
1003 | ||
252b5132 RH |
1004 | #define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y; |
1005 | static void | |
1006 | build_bytes (this_try, operand) | |
e0c6ed95 | 1007 | opcode_entry_type *this_try; |
252b5132 RH |
1008 | struct z8k_op *operand; |
1009 | { | |
1010 | unsigned int i; | |
1011 | ||
1012 | int length; | |
1013 | char *output; | |
1014 | char *output_ptr = buffer; | |
1015 | char part; | |
1016 | int c; | |
1017 | char high; | |
1018 | int nib; | |
1019 | int nibble; | |
1020 | unsigned int *class_ptr; | |
1021 | ||
1022 | frag_wane (frag_now); | |
1023 | frag_new (0); | |
1024 | ||
1025 | memset (buffer, 20, 0); | |
1026 | class_ptr = this_try->byte_info; | |
252b5132 | 1027 | |
e0c6ed95 | 1028 | top: |
252b5132 RH |
1029 | for (nibble = 0; c = *class_ptr++; nibble++) |
1030 | { | |
1031 | ||
1032 | switch (c & CLASS_MASK) | |
1033 | { | |
1034 | default: | |
252b5132 | 1035 | abort (); |
e0c6ed95 | 1036 | |
252b5132 | 1037 | case CLASS_ADDRESS: |
e0c6ed95 | 1038 | /* Direct address, we don't cope with the SS mode right now. */ |
252b5132 RH |
1039 | if (segmented_mode) |
1040 | { | |
1041 | da_operand->X_add_number |= 0x80000000; | |
1042 | output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8); | |
1043 | } | |
1044 | else | |
1045 | { | |
1046 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1047 | } | |
1048 | da_operand = 0; | |
1049 | break; | |
1050 | case CLASS_DISP8: | |
e0c6ed95 | 1051 | /* pc rel 8 bit */ |
252b5132 RH |
1052 | output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2); |
1053 | da_operand = 0; | |
1054 | break; | |
1055 | ||
1056 | case CLASS_0DISP7: | |
e0c6ed95 | 1057 | /* pc rel 7 bit */ |
252b5132 RH |
1058 | *output_ptr = 0; |
1059 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
1060 | da_operand = 0; | |
1061 | break; | |
1062 | ||
1063 | case CLASS_1DISP7: | |
e0c6ed95 | 1064 | /* pc rel 7 bit */ |
252b5132 RH |
1065 | *output_ptr = 0x80; |
1066 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
e0c6ed95 | 1067 | output_ptr[-2] = 0x8; |
252b5132 RH |
1068 | da_operand = 0; |
1069 | break; | |
1070 | ||
1071 | case CLASS_BIT_1OR2: | |
1072 | *output_ptr = c & 0xf; | |
1073 | if (imm_operand) | |
1074 | { | |
1075 | if (imm_operand->X_add_number == 2) | |
e0c6ed95 | 1076 | *output_ptr |= 2; |
252b5132 | 1077 | else if (imm_operand->X_add_number != 1) |
e0c6ed95 | 1078 | as_bad (_("immediate must be 1 or 2")); |
252b5132 RH |
1079 | } |
1080 | else | |
e0c6ed95 | 1081 | as_bad (_("immediate 1 or 2 expected")); |
252b5132 RH |
1082 | output_ptr++; |
1083 | break; | |
1084 | case CLASS_CC: | |
1085 | *output_ptr++ = the_cc; | |
1086 | break; | |
e0c6ed95 AM |
1087 | case CLASS_0CCC: |
1088 | *output_ptr++ = the_ctrl; | |
1089 | break; | |
1090 | case CLASS_1CCC: | |
1091 | *output_ptr++ = the_ctrl | 0x8; | |
1092 | break; | |
1093 | case CLASS_00II: | |
1094 | *output_ptr++ = (~the_interrupt & 0x3); | |
1095 | break; | |
1096 | case CLASS_01II: | |
1097 | *output_ptr++ = (~the_interrupt & 0x3) | 0x4; | |
1098 | break; | |
1099 | case CLASS_FLAGS: | |
1100 | *output_ptr++ = the_flags; | |
1101 | break; | |
252b5132 RH |
1102 | case CLASS_BIT: |
1103 | *output_ptr++ = c & 0xf; | |
1104 | break; | |
1105 | case CLASS_REGN0: | |
1106 | if (reg[c & 0xf] == 0) | |
e0c6ed95 AM |
1107 | as_bad (_("can't use R0 here")); |
1108 | /* Fall through. */ | |
252b5132 RH |
1109 | case CLASS_REG: |
1110 | case CLASS_REG_BYTE: | |
1111 | case CLASS_REG_WORD: | |
1112 | case CLASS_REG_LONG: | |
1113 | case CLASS_REG_QUAD: | |
e0c6ed95 | 1114 | /* Insert bit mattern of right reg. */ |
252b5132 RH |
1115 | *output_ptr++ = reg[c & 0xf]; |
1116 | break; | |
1117 | case CLASS_DISP: | |
1118 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1119 | da_operand = 0; | |
1120 | break; | |
1121 | ||
1122 | case CLASS_IMM: | |
1123 | { | |
1124 | nib = 0; | |
1125 | switch (c & ARG_MASK) | |
1126 | { | |
1127 | case ARG_IMM4: | |
1128 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1129 | break; | |
1130 | case ARG_IMM4M1: | |
1131 | imm_operand->X_add_number--; | |
1132 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1133 | break; | |
1134 | case ARG_IMMNMINUS1: | |
1135 | imm_operand->X_add_number--; | |
1136 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1137 | break; | |
1138 | case ARG_NIM8: | |
1139 | imm_operand->X_add_number = -imm_operand->X_add_number; | |
1140 | case ARG_IMM8: | |
1141 | output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2); | |
1142 | break; | |
1143 | case ARG_IMM16: | |
1144 | output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4); | |
1145 | break; | |
1146 | ||
1147 | case ARG_IMM32: | |
1148 | output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8); | |
1149 | break; | |
1150 | ||
1151 | default: | |
1152 | abort (); | |
1153 | } | |
1154 | } | |
1155 | } | |
1156 | } | |
1157 | ||
e0c6ed95 | 1158 | /* Copy from the nibble buffer into the frag. */ |
252b5132 RH |
1159 | { |
1160 | int length = (output_ptr - buffer) / 2; | |
1161 | char *src = buffer; | |
1162 | char *fragp = frag_more (length); | |
1163 | ||
1164 | while (src < output_ptr) | |
1165 | { | |
1166 | *fragp = (src[0] << 4) | src[1]; | |
1167 | src += 2; | |
1168 | fragp++; | |
1169 | } | |
252b5132 | 1170 | } |
252b5132 RH |
1171 | } |
1172 | ||
1173 | /* This is the guts of the machine-dependent assembler. STR points to a | |
1994a7c7 NC |
1174 | machine dependent instruction. This function is supposed to emit |
1175 | the frags/bytes it assembles to. */ | |
252b5132 RH |
1176 | |
1177 | void | |
c0fecd35 AM |
1178 | md_assemble (str) |
1179 | char *str; | |
252b5132 RH |
1180 | { |
1181 | char *op_start; | |
1182 | char *op_end; | |
1183 | unsigned int i; | |
1184 | struct z8k_op operand[3]; | |
1185 | opcode_entry_type *opcode; | |
1186 | opcode_entry_type *prev_opcode; | |
1187 | ||
1188 | char *dot = 0; | |
1189 | char c; | |
1190 | ||
e0c6ed95 | 1191 | /* Drop leading whitespace. */ |
252b5132 RH |
1192 | while (*str == ' ') |
1193 | str++; | |
1194 | ||
e0c6ed95 | 1195 | /* Find the op code end. */ |
252b5132 RH |
1196 | for (op_start = op_end = str; |
1197 | *op_end != 0 && *op_end != ' '; | |
1198 | op_end++) | |
e0c6ed95 | 1199 | ; |
252b5132 RH |
1200 | |
1201 | if (op_end == op_start) | |
1202 | { | |
1203 | as_bad (_("can't find opcode ")); | |
1204 | } | |
1205 | c = *op_end; | |
1206 | ||
1207 | *op_end = 0; | |
1208 | ||
e0c6ed95 | 1209 | opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start); |
252b5132 RH |
1210 | |
1211 | if (opcode == NULL) | |
1212 | { | |
1213 | as_bad (_("unknown opcode")); | |
1214 | return; | |
1215 | } | |
1216 | ||
1217 | if (opcode->opcode == 250) | |
1218 | { | |
e0c6ed95 | 1219 | /* Was really a pseudo op. */ |
252b5132 RH |
1220 | |
1221 | pseudo_typeS *p; | |
1222 | char oc; | |
1223 | ||
1224 | char *old = input_line_pointer; | |
1225 | *op_end = c; | |
1226 | ||
252b5132 RH |
1227 | input_line_pointer = op_end; |
1228 | ||
1229 | oc = *old; | |
1230 | *old = '\n'; | |
1231 | while (*input_line_pointer == ' ') | |
1232 | input_line_pointer++; | |
1233 | p = (pseudo_typeS *) (opcode->func); | |
1234 | ||
1235 | (p->poc_handler) (p->poc_val); | |
1236 | input_line_pointer = old; | |
1237 | *old = oc; | |
1238 | } | |
1239 | else | |
1240 | { | |
e0c6ed95 | 1241 | input_line_pointer = get_operands (opcode, op_end, operand); |
252b5132 RH |
1242 | prev_opcode = opcode; |
1243 | ||
1244 | opcode = get_specific (opcode, operand); | |
1245 | ||
1246 | if (opcode == 0) | |
1247 | { | |
e0c6ed95 | 1248 | /* Couldn't find an opcode which matched the operands. */ |
252b5132 RH |
1249 | char *where = frag_more (2); |
1250 | ||
1251 | where[0] = 0x0; | |
1252 | where[1] = 0x0; | |
1253 | ||
1254 | as_bad (_("Can't find opcode to match operands")); | |
1255 | return; | |
1256 | } | |
1257 | ||
1258 | build_bytes (opcode, operand); | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | void | |
c0fecd35 AM |
1263 | tc_crawl_symbol_chain (headers) |
1264 | object_headers *headers; | |
252b5132 RH |
1265 | { |
1266 | printf (_("call to tc_crawl_symbol_chain \n")); | |
1267 | } | |
1268 | ||
1269 | symbolS * | |
c0fecd35 AM |
1270 | md_undefined_symbol (name) |
1271 | char *name; | |
252b5132 RH |
1272 | { |
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | void | |
c0fecd35 AM |
1277 | tc_headers_hook (headers) |
1278 | object_headers *headers; | |
252b5132 RH |
1279 | { |
1280 | printf (_("call to tc_headers_hook \n")); | |
1281 | } | |
1282 | ||
e0c6ed95 AM |
1283 | /* Various routines to kill one day. */ |
1284 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
1285 | #define MAX_LITTLENUMS 6 |
1286 | ||
e0c6ed95 AM |
1287 | /* Turn a string in input_line_pointer into a floating point constant |
1288 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
1289 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
1290 | returned, or NULL on OK. */ | |
1291 | ||
252b5132 RH |
1292 | char * |
1293 | md_atof (type, litP, sizeP) | |
1294 | char type; | |
1295 | char *litP; | |
1296 | int *sizeP; | |
1297 | { | |
1298 | int prec; | |
1299 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1300 | LITTLENUM_TYPE *wordP; | |
1301 | char *t; | |
1302 | char *atof_ieee (); | |
1303 | ||
1304 | switch (type) | |
1305 | { | |
1306 | case 'f': | |
1307 | case 'F': | |
1308 | case 's': | |
1309 | case 'S': | |
1310 | prec = 2; | |
1311 | break; | |
1312 | ||
1313 | case 'd': | |
1314 | case 'D': | |
1315 | case 'r': | |
1316 | case 'R': | |
1317 | prec = 4; | |
1318 | break; | |
1319 | ||
1320 | case 'x': | |
1321 | case 'X': | |
1322 | prec = 6; | |
1323 | break; | |
1324 | ||
1325 | case 'p': | |
1326 | case 'P': | |
1327 | prec = 6; | |
1328 | break; | |
1329 | ||
1330 | default: | |
1331 | *sizeP = 0; | |
1332 | return _("Bad call to MD_ATOF()"); | |
1333 | } | |
1334 | t = atof_ieee (input_line_pointer, type, words); | |
1335 | if (t) | |
1336 | input_line_pointer = t; | |
1337 | ||
1338 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1339 | for (wordP = words; prec--;) | |
1340 | { | |
1341 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1342 | litP += sizeof (LITTLENUM_TYPE); | |
1343 | } | |
1344 | return 0; | |
1345 | } | |
1346 | \f | |
1347 | CONST char *md_shortopts = "z:"; | |
e0c6ed95 | 1348 | |
252b5132 RH |
1349 | struct option md_longopts[] = { |
1350 | {NULL, no_argument, NULL, 0} | |
1351 | }; | |
e0c6ed95 AM |
1352 | |
1353 | size_t md_longopts_size = sizeof (md_longopts); | |
252b5132 RH |
1354 | |
1355 | int | |
1356 | md_parse_option (c, arg) | |
1357 | int c; | |
1358 | char *arg; | |
1359 | { | |
1360 | switch (c) | |
1361 | { | |
1362 | case 'z': | |
1363 | if (!strcmp (arg, "8001")) | |
1364 | s_segm (); | |
1365 | else if (!strcmp (arg, "8002")) | |
1366 | s_unseg (); | |
1367 | else | |
1368 | { | |
1369 | as_bad (_("invalid architecture -z%s"), arg); | |
1370 | return 0; | |
1371 | } | |
1372 | break; | |
1373 | ||
1374 | default: | |
1375 | return 0; | |
1376 | } | |
1377 | ||
1378 | return 1; | |
1379 | } | |
1380 | ||
1381 | void | |
1382 | md_show_usage (stream) | |
1383 | FILE *stream; | |
1384 | { | |
e0c6ed95 | 1385 | fprintf (stream, _("\ |
252b5132 RH |
1386 | Z8K options:\n\ |
1387 | -z8001 generate segmented code\n\ | |
1388 | -z8002 generate unsegmented code\n")); | |
1389 | } | |
1390 | \f | |
1391 | void | |
1392 | tc_aout_fix_to_chars () | |
1393 | { | |
1394 | printf (_("call to tc_aout_fix_to_chars \n")); | |
1395 | abort (); | |
1396 | } | |
1397 | ||
1398 | void | |
1399 | md_convert_frag (headers, seg, fragP) | |
1400 | object_headers *headers; | |
1401 | segT seg; | |
1402 | fragS *fragP; | |
1403 | { | |
1404 | printf (_("call to md_convert_frag \n")); | |
1405 | abort (); | |
1406 | } | |
1407 | ||
1408 | valueT | |
c0fecd35 AM |
1409 | md_section_align (seg, size) |
1410 | segT seg; | |
1411 | valueT size; | |
252b5132 | 1412 | { |
e0c6ed95 AM |
1413 | return ((size + (1 << section_alignment[(int) seg]) - 1) |
1414 | & (-1 << section_alignment[(int) seg])); | |
252b5132 RH |
1415 | |
1416 | } | |
1417 | ||
1418 | void | |
1419 | md_apply_fix (fixP, val) | |
1420 | fixS *fixP; | |
1421 | long val; | |
1422 | { | |
1423 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
1424 | ||
1425 | switch (fixP->fx_r_type) | |
1426 | { | |
1427 | case R_IMM4L: | |
1428 | buf[0] = (buf[0] & 0xf0) | ((buf[0] + val) & 0xf); | |
1429 | break; | |
1430 | ||
1431 | case R_JR: | |
1432 | ||
1433 | *buf++ = val; | |
e0c6ed95 AM |
1434 | #if 0 |
1435 | if (val != 0) | |
1436 | abort (); | |
1437 | #endif | |
252b5132 RH |
1438 | break; |
1439 | ||
1440 | case R_DISP7: | |
1441 | ||
1442 | *buf++ += val; | |
e0c6ed95 AM |
1443 | #if 0 |
1444 | if (val != 0) | |
1445 | abort (); | |
1446 | #endif | |
252b5132 RH |
1447 | break; |
1448 | ||
1449 | case R_IMM8: | |
1450 | buf[0] += val; | |
1451 | break; | |
1452 | case R_IMM16: | |
1453 | *buf++ = (val >> 8); | |
1454 | *buf++ = val; | |
1455 | break; | |
1456 | case R_IMM32: | |
1457 | *buf++ = (val >> 24); | |
1458 | *buf++ = (val >> 16); | |
1459 | *buf++ = (val >> 8); | |
1460 | *buf++ = val; | |
1461 | break; | |
1462 | #if 0 | |
1463 | case R_DA | R_SEG: | |
1464 | *buf++ = (val >> 16); | |
1465 | *buf++ = 0x00; | |
1466 | *buf++ = (val >> 8); | |
1467 | *buf++ = val; | |
1468 | break; | |
1469 | #endif | |
1470 | ||
1471 | case 0: | |
1472 | md_number_to_chars (buf, val, fixP->fx_size); | |
1473 | break; | |
1474 | ||
1475 | default: | |
1476 | abort (); | |
252b5132 RH |
1477 | } |
1478 | } | |
1479 | ||
1480 | int | |
1481 | md_estimate_size_before_relax (fragP, segment_type) | |
1482 | register fragS *fragP; | |
1483 | register segT segment_type; | |
1484 | { | |
1485 | printf (_("call tomd_estimate_size_before_relax \n")); | |
1486 | abort (); | |
1487 | } | |
1488 | ||
e0c6ed95 | 1489 | /* Put number into target byte order. */ |
252b5132 RH |
1490 | |
1491 | void | |
c0fecd35 AM |
1492 | md_number_to_chars (ptr, use, nbytes) |
1493 | char *ptr; | |
1494 | valueT use; | |
1495 | int nbytes; | |
252b5132 RH |
1496 | { |
1497 | number_to_chars_bigendian (ptr, use, nbytes); | |
1498 | } | |
e0c6ed95 | 1499 | |
252b5132 RH |
1500 | long |
1501 | md_pcrel_from (fixP) | |
1502 | fixS *fixP; | |
1503 | { | |
1504 | abort (); | |
1505 | } | |
1506 | ||
1507 | void | |
1508 | tc_coff_symbol_emit_hook (s) | |
49309057 | 1509 | symbolS *s; |
252b5132 RH |
1510 | { |
1511 | } | |
1512 | ||
1513 | void | |
1514 | tc_reloc_mangle (fix_ptr, intr, base) | |
1515 | fixS *fix_ptr; | |
1516 | struct internal_reloc *intr; | |
1517 | bfd_vma base; | |
1518 | ||
1519 | { | |
1520 | symbolS *symbol_ptr; | |
1521 | ||
e0c6ed95 AM |
1522 | if (fix_ptr->fx_addsy |
1523 | && fix_ptr->fx_subsy) | |
252b5132 RH |
1524 | { |
1525 | symbolS *add = fix_ptr->fx_addsy; | |
1526 | symbolS *sub = fix_ptr->fx_subsy; | |
e0c6ed95 AM |
1527 | |
1528 | if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub)) | |
1529 | as_bad (_("Can't subtract symbols in different sections %s %s"), | |
1530 | S_GET_NAME (add), S_GET_NAME (sub)); | |
1531 | else | |
252b5132 | 1532 | { |
e0c6ed95 AM |
1533 | int diff = S_GET_VALUE (add) - S_GET_VALUE (sub); |
1534 | ||
1535 | fix_ptr->fx_addsy = 0; | |
1536 | fix_ptr->fx_subsy = 0; | |
1537 | fix_ptr->fx_offset += diff; | |
252b5132 | 1538 | } |
252b5132 RH |
1539 | } |
1540 | symbol_ptr = fix_ptr->fx_addsy; | |
1541 | ||
1542 | /* If this relocation is attached to a symbol then it's ok | |
e0c6ed95 | 1543 | to output it. */ |
252b5132 RH |
1544 | if (fix_ptr->fx_r_type == 0) |
1545 | { | |
e0c6ed95 | 1546 | /* cons likes to create reloc32's whatever the size of the reloc. */ |
252b5132 RH |
1547 | switch (fix_ptr->fx_size) |
1548 | { | |
1549 | case 2: | |
1550 | intr->r_type = R_IMM16; | |
1551 | break; | |
1552 | case 1: | |
1553 | intr->r_type = R_IMM8; | |
1554 | break; | |
1555 | case 4: | |
1556 | intr->r_type = R_IMM32; | |
1557 | break; | |
1558 | default: | |
1559 | abort (); | |
1560 | } | |
252b5132 RH |
1561 | } |
1562 | else | |
e0c6ed95 | 1563 | intr->r_type = fix_ptr->fx_r_type; |
252b5132 RH |
1564 | |
1565 | intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base; | |
1566 | intr->r_offset = fix_ptr->fx_offset; | |
1567 | ||
1568 | if (symbol_ptr) | |
1569 | intr->r_symndx = symbol_ptr->sy_number; | |
1570 | else | |
1571 | intr->r_symndx = -1; | |
1572 | } |