Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* tc-z8k.c -- Assemble code for the Zilog Z800n |
f7e42eb4 NC |
2 | Copyright 1992, 1993, 1994, 1995, 1996, 1998, 2000 |
3 | Free Software Foundation, Inc. | |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
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 | ||
19d63e5d | 190 | struct z8k_exp { |
252b5132 RH |
191 | char *e_beg; |
192 | char *e_end; | |
193 | expressionS e_exp; | |
194 | }; | |
e0c6ed95 | 195 | |
19d63e5d | 196 | typedef struct z8k_op { |
e0c6ed95 AM |
197 | /* 'b','w','r','q'. */ |
198 | char regsize; | |
199 | ||
200 | /* 0 .. 15. */ | |
201 | unsigned int reg; | |
252b5132 RH |
202 | |
203 | int mode; | |
204 | ||
e0c6ed95 AM |
205 | /* Any other register associated with the mode. */ |
206 | unsigned int x_reg; | |
207 | ||
208 | /* Any expression. */ | |
209 | expressionS exp; | |
19d63e5d | 210 | } op_type; |
252b5132 RH |
211 | |
212 | static expressionS *da_operand; | |
213 | static expressionS *imm_operand; | |
214 | ||
215 | int reg[16]; | |
216 | int the_cc; | |
217 | int the_ctrl; | |
218 | int the_flags; | |
219 | int the_interrupt; | |
220 | ||
221 | char * | |
c0fecd35 AM |
222 | whatreg (reg, src) |
223 | int *reg; | |
224 | char *src; | |
252b5132 RH |
225 | { |
226 | if (isdigit (src[1])) | |
227 | { | |
228 | *reg = (src[0] - '0') * 10 + src[1] - '0'; | |
229 | return src + 2; | |
230 | } | |
231 | else | |
232 | { | |
233 | *reg = (src[0] - '0'); | |
234 | return src + 1; | |
235 | } | |
236 | } | |
237 | ||
e0c6ed95 | 238 | /* Parse operands |
252b5132 | 239 | |
e0c6ed95 AM |
240 | rh0-rh7, rl0-rl7 |
241 | r0-r15 | |
242 | rr0-rr14 | |
243 | rq0--rq12 | |
244 | WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp | |
245 | r0l,r0h,..r7l,r7h | |
246 | @WREG | |
247 | @WREG+ | |
248 | @-WREG | |
249 | #const | |
250 | */ | |
252b5132 | 251 | |
bc0d738a NC |
252 | /* Try to parse a reg name. Return a pointer to the first character |
253 | in SRC after the reg name. */ | |
254 | ||
252b5132 | 255 | char * |
c0fecd35 AM |
256 | parse_reg (src, mode, reg) |
257 | char *src; | |
258 | int *mode; | |
259 | unsigned int *reg; | |
252b5132 RH |
260 | { |
261 | char *res = 0; | |
262 | char regno; | |
263 | ||
264 | if (src[0] == 's' && src[1] == 'p') | |
265 | { | |
266 | if (segmented_mode) | |
e0c6ed95 AM |
267 | { |
268 | *mode = CLASS_REG_LONG; | |
269 | *reg = 14; | |
270 | } | |
252b5132 | 271 | else |
e0c6ed95 AM |
272 | { |
273 | *mode = CLASS_REG_WORD; | |
274 | *reg = 15; | |
275 | } | |
252b5132 RH |
276 | return src + 2; |
277 | } | |
278 | if (src[0] == 'r') | |
279 | { | |
280 | if (src[1] == 'r') | |
e0c6ed95 AM |
281 | { |
282 | *mode = CLASS_REG_LONG; | |
283 | res = whatreg (reg, src + 2); | |
252b5132 RH |
284 | regno = *reg; |
285 | if (regno > 14) | |
e0c6ed95 AM |
286 | as_warn (_("register rr%d, out of range."), regno); |
287 | } | |
252b5132 | 288 | else if (src[1] == 'h') |
e0c6ed95 AM |
289 | { |
290 | *mode = CLASS_REG_BYTE; | |
291 | res = whatreg (reg, src + 2); | |
252b5132 RH |
292 | regno = *reg; |
293 | if (regno > 7) | |
e0c6ed95 AM |
294 | as_warn (_("register rh%d, out of range."), regno); |
295 | } | |
252b5132 | 296 | else if (src[1] == 'l') |
e0c6ed95 AM |
297 | { |
298 | *mode = CLASS_REG_BYTE; | |
299 | res = whatreg (reg, src + 2); | |
252b5132 RH |
300 | regno = *reg; |
301 | if (regno > 7) | |
e0c6ed95 AM |
302 | as_warn (_("register rl%d, out of range."), regno); |
303 | *reg += 8; | |
304 | } | |
252b5132 | 305 | else if (src[1] == 'q') |
e0c6ed95 AM |
306 | { |
307 | *mode = CLASS_REG_QUAD; | |
308 | res = whatreg (reg, src + 2); | |
252b5132 RH |
309 | regno = *reg; |
310 | if (regno > 12) | |
e0c6ed95 AM |
311 | as_warn (_("register rq%d, out of range."), regno); |
312 | } | |
252b5132 | 313 | else |
e0c6ed95 AM |
314 | { |
315 | *mode = CLASS_REG_WORD; | |
316 | res = whatreg (reg, src + 1); | |
252b5132 RH |
317 | regno = *reg; |
318 | if (regno > 15) | |
e0c6ed95 AM |
319 | as_warn (_("register r%d, out of range."), regno); |
320 | } | |
252b5132 RH |
321 | } |
322 | return res; | |
252b5132 RH |
323 | } |
324 | ||
325 | char * | |
c0fecd35 AM |
326 | parse_exp (s, op) |
327 | char *s; | |
328 | expressionS *op; | |
252b5132 RH |
329 | { |
330 | char *save = input_line_pointer; | |
331 | char *new; | |
332 | ||
333 | input_line_pointer = s; | |
334 | expression (op); | |
335 | if (op->X_op == O_absent) | |
336 | as_bad (_("missing operand")); | |
337 | new = input_line_pointer; | |
338 | input_line_pointer = save; | |
339 | return new; | |
340 | } | |
341 | ||
342 | /* The many forms of operand: | |
343 | ||
344 | <rb> | |
345 | <r> | |
346 | <rr> | |
347 | <rq> | |
348 | @r | |
349 | #exp | |
350 | exp | |
351 | exp(r) | |
352 | r(#exp) | |
353 | r(r) | |
252b5132 RH |
354 | */ |
355 | ||
e0c6ed95 | 356 | static char * |
c0fecd35 AM |
357 | checkfor (ptr, what) |
358 | char *ptr; | |
359 | char what; | |
252b5132 RH |
360 | { |
361 | if (*ptr == what) | |
362 | ptr++; | |
363 | else | |
e0c6ed95 AM |
364 | as_bad (_("expected %c"), what); |
365 | ||
252b5132 RH |
366 | return ptr; |
367 | } | |
368 | ||
e0c6ed95 AM |
369 | /* Make sure the mode supplied is the size of a word. */ |
370 | ||
252b5132 | 371 | static void |
c0fecd35 AM |
372 | regword (mode, string) |
373 | int mode; | |
374 | char *string; | |
252b5132 RH |
375 | { |
376 | int ok; | |
377 | ||
378 | ok = CLASS_REG_WORD; | |
379 | if (ok != mode) | |
380 | { | |
381 | as_bad (_("register is wrong size for a word %s"), string); | |
382 | } | |
383 | } | |
384 | ||
e0c6ed95 AM |
385 | /* Make sure the mode supplied is the size of an address. */ |
386 | ||
252b5132 | 387 | static void |
c0fecd35 AM |
388 | regaddr (mode, string) |
389 | int mode; | |
390 | char *string; | |
252b5132 RH |
391 | { |
392 | int ok; | |
393 | ||
394 | ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD; | |
395 | if (ok != mode) | |
396 | { | |
397 | as_bad (_("register is wrong size for address %s"), string); | |
398 | } | |
399 | } | |
400 | ||
19d63e5d | 401 | struct ctrl_names { |
e0c6ed95 AM |
402 | int value; |
403 | char *name; | |
252b5132 RH |
404 | }; |
405 | ||
e0c6ed95 AM |
406 | struct ctrl_names ctrl_table[] = { |
407 | 0x2, "fcw", | |
408 | 0X3, "refresh", | |
409 | 0x4, "psapseg", | |
410 | 0x5, "psapoff", | |
411 | 0x5, "psap", | |
412 | 0x6, "nspseg", | |
413 | 0x7, "nspoff", | |
414 | 0x7, "nsp", | |
415 | 0 , 0 | |
252b5132 | 416 | }; |
e0c6ed95 | 417 | |
252b5132 | 418 | static void |
c0fecd35 AM |
419 | get_ctrl_operand (ptr, mode, dst) |
420 | char **ptr; | |
421 | struct z8k_op *mode; | |
422 | unsigned int dst; | |
252b5132 RH |
423 | { |
424 | char *src = *ptr; | |
425 | int r; | |
426 | int i; | |
427 | ||
428 | while (*src == ' ') | |
429 | src++; | |
430 | ||
431 | mode->mode = CLASS_CTRL; | |
432 | for (i = 0; ctrl_table[i].name; i++) | |
433 | { | |
434 | int j; | |
435 | ||
436 | for (j = 0; ctrl_table[i].name[j]; j++) | |
e0c6ed95 AM |
437 | { |
438 | if (ctrl_table[i].name[j] != src[j]) | |
439 | goto fail; | |
440 | } | |
252b5132 RH |
441 | the_ctrl = ctrl_table[i].value; |
442 | *ptr = src + j; | |
443 | return; | |
e0c6ed95 AM |
444 | fail: |
445 | ; | |
252b5132 RH |
446 | } |
447 | the_ctrl = 0; | |
448 | return; | |
449 | } | |
450 | ||
19d63e5d | 451 | struct flag_names { |
252b5132 RH |
452 | int value; |
453 | char *name; | |
454 | ||
455 | }; | |
456 | ||
e0c6ed95 | 457 | struct flag_names flag_table[] = { |
252b5132 RH |
458 | 0x1, "p", |
459 | 0x1, "v", | |
460 | 0x2, "s", | |
461 | 0x4, "z", | |
462 | 0x8, "c", | |
463 | 0x0, "+", | |
464 | 0, 0 | |
465 | }; | |
466 | ||
467 | static void | |
c0fecd35 AM |
468 | get_flags_operand (ptr, mode, dst) |
469 | char **ptr; | |
470 | struct z8k_op *mode; | |
471 | unsigned int dst; | |
252b5132 RH |
472 | { |
473 | char *src = *ptr; | |
474 | int r; | |
475 | int i; | |
476 | int j; | |
477 | ||
478 | while (*src == ' ') | |
479 | src++; | |
480 | ||
481 | mode->mode = CLASS_FLAGS; | |
482 | the_flags = 0; | |
483 | for (j = 0; j <= 9; j++) | |
484 | { | |
e0c6ed95 | 485 | if (!src[j]) |
252b5132 | 486 | goto done; |
e0c6ed95 AM |
487 | for (i = 0; flag_table[i].name; i++) |
488 | { | |
489 | if (flag_table[i].name[0] == src[j]) | |
490 | { | |
491 | the_flags = the_flags | flag_table[i].value; | |
492 | goto match; | |
493 | } | |
494 | } | |
252b5132 RH |
495 | goto done; |
496 | match: | |
e0c6ed95 | 497 | ; |
252b5132 | 498 | } |
e0c6ed95 | 499 | done: |
252b5132 RH |
500 | *ptr = src + j; |
501 | return; | |
502 | } | |
503 | ||
19d63e5d | 504 | struct interrupt_names { |
252b5132 RH |
505 | int value; |
506 | char *name; | |
507 | ||
508 | }; | |
509 | ||
19d63e5d | 510 | struct interrupt_names intr_table[] = { |
252b5132 RH |
511 | 0x1, "nvi", |
512 | 0x2, "vi", | |
513 | 0x3, "both", | |
514 | 0x3, "all", | |
515 | 0, 0 | |
516 | }; | |
517 | ||
518 | static void | |
c0fecd35 AM |
519 | get_interrupt_operand (ptr, mode, dst) |
520 | char **ptr; | |
521 | struct z8k_op *mode; | |
522 | unsigned int dst; | |
252b5132 RH |
523 | { |
524 | char *src = *ptr; | |
525 | int r; | |
526 | int i; | |
527 | ||
528 | while (*src == ' ') | |
529 | src++; | |
530 | ||
531 | mode->mode = CLASS_IMM; | |
532 | for (i = 0; intr_table[i].name; i++) | |
533 | { | |
534 | int j; | |
535 | ||
536 | for (j = 0; intr_table[i].name[j]; j++) | |
e0c6ed95 AM |
537 | { |
538 | if (intr_table[i].name[j] != src[j]) | |
539 | goto fail; | |
540 | } | |
252b5132 RH |
541 | the_interrupt = intr_table[i].value; |
542 | *ptr = src + j; | |
543 | return; | |
e0c6ed95 AM |
544 | fail: |
545 | ; | |
252b5132 RH |
546 | } |
547 | the_interrupt = 0x0; | |
548 | return; | |
549 | } | |
550 | ||
19d63e5d | 551 | struct cc_names { |
252b5132 RH |
552 | int value; |
553 | char *name; | |
554 | ||
555 | }; | |
556 | ||
e0c6ed95 | 557 | struct cc_names table[] = { |
252b5132 RH |
558 | 0x0, "f", |
559 | 0x1, "lt", | |
560 | 0x2, "le", | |
561 | 0x3, "ule", | |
562 | 0x4, "ov", | |
563 | 0x4, "pe", | |
564 | 0x5, "mi", | |
565 | 0x6, "eq", | |
566 | 0x6, "z", | |
567 | 0x7, "c", | |
568 | 0x7, "ult", | |
569 | 0x8, "t", | |
570 | 0x9, "ge", | |
571 | 0xa, "gt", | |
572 | 0xb, "ugt", | |
573 | 0xc, "nov", | |
574 | 0xc, "po", | |
575 | 0xd, "pl", | |
576 | 0xe, "ne", | |
577 | 0xe, "nz", | |
578 | 0xf, "nc", | |
579 | 0xf, "uge", | |
e0c6ed95 | 580 | 0 , 0 |
252b5132 RH |
581 | }; |
582 | ||
583 | static void | |
c0fecd35 AM |
584 | get_cc_operand (ptr, mode, dst) |
585 | char **ptr; | |
586 | struct z8k_op *mode; | |
587 | unsigned int dst; | |
252b5132 RH |
588 | { |
589 | char *src = *ptr; | |
590 | int r; | |
591 | int i; | |
592 | ||
593 | while (*src == ' ') | |
594 | src++; | |
595 | ||
596 | mode->mode = CLASS_CC; | |
597 | for (i = 0; table[i].name; i++) | |
598 | { | |
599 | int j; | |
600 | ||
601 | for (j = 0; table[i].name[j]; j++) | |
602 | { | |
603 | if (table[i].name[j] != src[j]) | |
604 | goto fail; | |
605 | } | |
606 | the_cc = table[i].value; | |
607 | *ptr = src + j; | |
608 | return; | |
e0c6ed95 AM |
609 | fail: |
610 | ; | |
252b5132 RH |
611 | } |
612 | the_cc = 0x8; | |
613 | } | |
614 | ||
615 | static void | |
616 | get_operand (ptr, mode, dst) | |
617 | char **ptr; | |
618 | struct z8k_op *mode; | |
619 | unsigned int dst; | |
620 | { | |
621 | char *src = *ptr; | |
622 | char *end; | |
623 | unsigned int num; | |
624 | unsigned int len; | |
625 | unsigned int size; | |
626 | ||
627 | mode->mode = 0; | |
628 | ||
629 | while (*src == ' ') | |
630 | src++; | |
631 | if (*src == '#') | |
632 | { | |
633 | mode->mode = CLASS_IMM; | |
634 | imm_operand = &(mode->exp); | |
635 | src = parse_exp (src + 1, &(mode->exp)); | |
636 | } | |
637 | else if (*src == '@') | |
638 | { | |
639 | int d; | |
640 | ||
641 | mode->mode = CLASS_IR; | |
642 | src = parse_reg (src + 1, &d, &mode->reg); | |
643 | } | |
644 | else | |
645 | { | |
646 | int regn; | |
647 | ||
648 | end = parse_reg (src, &mode->mode, ®n); | |
649 | ||
650 | if (end) | |
651 | { | |
652 | int nw, nr; | |
653 | ||
654 | src = end; | |
655 | if (*src == '(') | |
656 | { | |
657 | src++; | |
658 | end = parse_reg (src, &nw, &nr); | |
659 | if (end) | |
660 | { | |
e0c6ed95 | 661 | /* Got Ra(Rb). */ |
252b5132 RH |
662 | src = end; |
663 | ||
664 | if (*src != ')') | |
e0c6ed95 | 665 | as_bad (_("Missing ) in ra(rb)")); |
252b5132 | 666 | else |
e0c6ed95 | 667 | src++; |
252b5132 RH |
668 | |
669 | regaddr (mode->mode, "ra(rb) ra"); | |
e0c6ed95 AM |
670 | #if 0 |
671 | regword (mode->mode, "ra(rb) rb"); | |
672 | #endif | |
252b5132 RH |
673 | mode->mode = CLASS_BX; |
674 | mode->reg = regn; | |
675 | mode->x_reg = nr; | |
676 | reg[ARG_RX] = nr; | |
677 | } | |
678 | else | |
679 | { | |
e0c6ed95 | 680 | /* Got Ra(disp). */ |
252b5132 RH |
681 | if (*src == '#') |
682 | src++; | |
683 | src = parse_exp (src, &(mode->exp)); | |
684 | src = checkfor (src, ')'); | |
685 | mode->mode = CLASS_BA; | |
686 | mode->reg = regn; | |
687 | mode->x_reg = 0; | |
688 | imm_operand = &(mode->exp); | |
689 | } | |
690 | } | |
691 | else | |
692 | { | |
693 | mode->reg = regn; | |
694 | mode->x_reg = 0; | |
695 | } | |
696 | } | |
697 | else | |
698 | { | |
e0c6ed95 | 699 | /* No initial reg. */ |
252b5132 RH |
700 | src = parse_exp (src, &(mode->exp)); |
701 | if (*src == '(') | |
702 | { | |
703 | src++; | |
704 | end = parse_reg (src, &(mode->mode), ®n); | |
705 | regword (mode->mode, "addr(Ra) ra"); | |
706 | mode->mode = CLASS_X; | |
707 | mode->reg = regn; | |
708 | mode->x_reg = 0; | |
709 | da_operand = &(mode->exp); | |
710 | src = checkfor (end, ')'); | |
711 | } | |
712 | else | |
713 | { | |
e0c6ed95 | 714 | /* Just an address. */ |
252b5132 RH |
715 | mode->mode = CLASS_DA; |
716 | mode->reg = 0; | |
717 | mode->x_reg = 0; | |
718 | da_operand = &(mode->exp); | |
719 | } | |
720 | } | |
721 | } | |
722 | *ptr = src; | |
723 | } | |
724 | ||
e0c6ed95 | 725 | static char * |
252b5132 RH |
726 | get_operands (opcode, op_end, operand) |
727 | opcode_entry_type *opcode; | |
728 | char *op_end; | |
729 | op_type *operand; | |
730 | { | |
731 | char *ptr = op_end; | |
e0c6ed95 AM |
732 | char *savptr; |
733 | ||
252b5132 RH |
734 | switch (opcode->noperands) |
735 | { | |
736 | case 0: | |
737 | operand[0].mode = 0; | |
738 | operand[1].mode = 0; | |
739 | break; | |
740 | ||
741 | case 1: | |
742 | ptr++; | |
743 | if (opcode->arg_info[0] == CLASS_CC) | |
e0c6ed95 AM |
744 | { |
745 | get_cc_operand (&ptr, operand + 0, 0); | |
746 | } | |
252b5132 | 747 | else if (opcode->arg_info[0] == CLASS_FLAGS) |
e0c6ed95 AM |
748 | { |
749 | get_flags_operand (&ptr, operand + 0, 0); | |
750 | } | |
751 | else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2))) | |
752 | { | |
753 | get_interrupt_operand (&ptr, operand + 0, 0); | |
754 | } | |
252b5132 | 755 | else |
e0c6ed95 AM |
756 | { |
757 | get_operand (&ptr, operand + 0, 0); | |
758 | } | |
252b5132 RH |
759 | operand[1].mode = 0; |
760 | break; | |
761 | ||
762 | case 2: | |
763 | ptr++; | |
764 | savptr = ptr; | |
765 | if (opcode->arg_info[0] == CLASS_CC) | |
e0c6ed95 AM |
766 | { |
767 | get_cc_operand (&ptr, operand + 0, 0); | |
768 | } | |
252b5132 | 769 | else if (opcode->arg_info[0] == CLASS_CTRL) |
e0c6ed95 AM |
770 | { |
771 | get_ctrl_operand (&ptr, operand + 0, 0); | |
772 | if (the_ctrl == 0) | |
773 | { | |
774 | ptr = savptr; | |
775 | get_operand (&ptr, operand + 0, 0); | |
776 | if (ptr == 0) | |
777 | return; | |
778 | if (*ptr == ',') | |
779 | ptr++; | |
780 | get_ctrl_operand (&ptr, operand + 1, 1); | |
781 | return ptr; | |
782 | } | |
783 | } | |
252b5132 | 784 | else |
e0c6ed95 AM |
785 | { |
786 | get_operand (&ptr, operand + 0, 0); | |
787 | } | |
252b5132 | 788 | if (ptr == 0) |
e0c6ed95 | 789 | return; |
252b5132 | 790 | if (*ptr == ',') |
e0c6ed95 | 791 | ptr++; |
252b5132 RH |
792 | get_operand (&ptr, operand + 1, 1); |
793 | break; | |
794 | ||
795 | case 3: | |
796 | ptr++; | |
797 | get_operand (&ptr, operand + 0, 0); | |
798 | if (*ptr == ',') | |
799 | ptr++; | |
800 | get_operand (&ptr, operand + 1, 1); | |
801 | if (*ptr == ',') | |
802 | ptr++; | |
803 | get_operand (&ptr, operand + 2, 2); | |
804 | break; | |
805 | ||
806 | case 4: | |
807 | ptr++; | |
808 | get_operand (&ptr, operand + 0, 0); | |
809 | if (*ptr == ',') | |
810 | ptr++; | |
811 | get_operand (&ptr, operand + 1, 1); | |
812 | if (*ptr == ',') | |
813 | ptr++; | |
814 | get_operand (&ptr, operand + 2, 2); | |
815 | if (*ptr == ',') | |
816 | ptr++; | |
817 | get_cc_operand (&ptr, operand + 3, 3); | |
818 | break; | |
e0c6ed95 | 819 | |
252b5132 RH |
820 | default: |
821 | abort (); | |
822 | } | |
823 | ||
824 | return ptr; | |
825 | } | |
826 | ||
827 | /* Passed a pointer to a list of opcodes which use different | |
e0c6ed95 AM |
828 | addressing modes. Return the opcode which matches the opcodes |
829 | provided. */ | |
252b5132 | 830 | |
e0c6ed95 | 831 | static opcode_entry_type * |
c0fecd35 AM |
832 | get_specific (opcode, operands) |
833 | opcode_entry_type *opcode; | |
834 | op_type *operands; | |
252b5132 RH |
835 | |
836 | { | |
837 | opcode_entry_type *this_try = opcode; | |
838 | int found = 0; | |
839 | unsigned int noperands = opcode->noperands; | |
840 | ||
841 | unsigned int dispreg; | |
842 | unsigned int this_index = opcode->idx; | |
843 | ||
844 | while (this_index == opcode->idx && !found) | |
845 | { | |
846 | unsigned int i; | |
847 | ||
848 | this_try = opcode++; | |
849 | for (i = 0; i < noperands; i++) | |
850 | { | |
851 | int mode = operands[i].mode; | |
852 | ||
853 | if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK)) | |
854 | { | |
e0c6ed95 AM |
855 | /* It could be an pc rel operand, if this is a da mode |
856 | and we like disps, then insert it. */ | |
252b5132 RH |
857 | |
858 | if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP) | |
859 | { | |
e0c6ed95 | 860 | /* This is the case. */ |
252b5132 RH |
861 | operands[i].mode = CLASS_DISP; |
862 | } | |
863 | else if (mode == CLASS_BA && this_try->arg_info[i]) | |
864 | { | |
e0c6ed95 AM |
865 | /* Can't think of a way to turn what we've been |
866 | given into something that's OK. */ | |
252b5132 RH |
867 | goto fail; |
868 | } | |
869 | else if (this_try->arg_info[i] & CLASS_PR) | |
870 | { | |
871 | if (mode == CLASS_REG_LONG && segmented_mode) | |
872 | { | |
e0c6ed95 | 873 | /* OK. */ |
252b5132 RH |
874 | } |
875 | else if (mode == CLASS_REG_WORD && !segmented_mode) | |
876 | { | |
e0c6ed95 | 877 | /* OK. */ |
252b5132 RH |
878 | } |
879 | else | |
880 | goto fail; | |
881 | } | |
882 | else | |
883 | goto fail; | |
884 | } | |
885 | switch (mode & CLASS_MASK) | |
886 | { | |
887 | default: | |
888 | break; | |
889 | case CLASS_X: | |
890 | case CLASS_IR: | |
891 | case CLASS_BA: | |
892 | case CLASS_BX: | |
893 | case CLASS_DISP: | |
894 | case CLASS_REG: | |
895 | case CLASS_REG_WORD: | |
896 | case CLASS_REG_BYTE: | |
897 | case CLASS_REG_QUAD: | |
898 | case CLASS_REG_LONG: | |
899 | case CLASS_REGN0: | |
900 | reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg; | |
901 | break; | |
902 | } | |
903 | } | |
904 | ||
905 | found = 1; | |
e0c6ed95 AM |
906 | fail: |
907 | ; | |
252b5132 RH |
908 | } |
909 | if (found) | |
910 | return this_try; | |
911 | else | |
912 | return 0; | |
913 | } | |
914 | ||
915 | static void | |
c0fecd35 AM |
916 | check_operand (operand, width, string) |
917 | struct z8k_op *operand; | |
918 | unsigned int width; | |
919 | char *string; | |
252b5132 RH |
920 | { |
921 | if (operand->exp.X_add_symbol == 0 | |
922 | && operand->exp.X_op_symbol == 0) | |
923 | { | |
924 | ||
e0c6ed95 AM |
925 | /* No symbol involved, let's look at offset, it's dangerous if |
926 | any of the high bits are not 0 or ff's, find out by oring or | |
927 | anding with the width and seeing if the answer is 0 or all | |
928 | fs. */ | |
252b5132 RH |
929 | if ((operand->exp.X_add_number & ~width) != 0 && |
930 | (operand->exp.X_add_number | width) != (~0)) | |
931 | { | |
e0c6ed95 AM |
932 | as_warn (_("operand %s0x%x out of range."), |
933 | string, operand->exp.X_add_number); | |
252b5132 RH |
934 | } |
935 | } | |
936 | ||
937 | } | |
938 | ||
939 | static char buffer[20]; | |
940 | ||
941 | static void | |
c0fecd35 AM |
942 | newfix (ptr, type, operand) |
943 | int ptr; | |
944 | int type; | |
945 | expressionS *operand; | |
252b5132 RH |
946 | { |
947 | if (operand->X_add_symbol | |
948 | || operand->X_op_symbol | |
949 | || operand->X_add_number) | |
950 | { | |
951 | fix_new_exp (frag_now, | |
952 | ptr, | |
953 | 1, | |
954 | operand, | |
955 | 0, | |
956 | type); | |
957 | } | |
958 | } | |
959 | ||
960 | static char * | |
c0fecd35 AM |
961 | apply_fix (ptr, type, operand, size) |
962 | char *ptr; | |
963 | int type; | |
964 | expressionS *operand; | |
965 | int size; | |
252b5132 RH |
966 | { |
967 | int n = operand->X_add_number; | |
968 | ||
969 | operand->X_add_number = n; | |
970 | newfix ((ptr - buffer) / 2, type, operand); | |
971 | #if 1 | |
972 | switch (size) | |
973 | { | |
e0c6ed95 | 974 | case 8: /* 8 nibbles == 32 bits */ |
252b5132 RH |
975 | *ptr++ = n >> 28; |
976 | *ptr++ = n >> 24; | |
977 | *ptr++ = n >> 20; | |
978 | *ptr++ = n >> 16; | |
e0c6ed95 | 979 | case 4: /* 4 niblles == 16 bits */ |
252b5132 RH |
980 | *ptr++ = n >> 12; |
981 | *ptr++ = n >> 8; | |
982 | case 2: | |
983 | *ptr++ = n >> 4; | |
984 | case 1: | |
985 | *ptr++ = n >> 0; | |
986 | break; | |
987 | } | |
988 | #endif | |
989 | return ptr; | |
990 | ||
991 | } | |
992 | ||
e0c6ed95 AM |
993 | /* Now we know what sort of opcodes it is. Let's build the bytes. */ |
994 | ||
252b5132 | 995 | #define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y; |
19d63e5d | 996 | |
252b5132 RH |
997 | static void |
998 | build_bytes (this_try, operand) | |
e0c6ed95 | 999 | opcode_entry_type *this_try; |
252b5132 RH |
1000 | struct z8k_op *operand; |
1001 | { | |
1002 | unsigned int i; | |
1003 | ||
1004 | int length; | |
1005 | char *output; | |
1006 | char *output_ptr = buffer; | |
1007 | char part; | |
1008 | int c; | |
1009 | char high; | |
1010 | int nib; | |
1011 | int nibble; | |
1012 | unsigned int *class_ptr; | |
1013 | ||
1014 | frag_wane (frag_now); | |
1015 | frag_new (0); | |
1016 | ||
1017 | memset (buffer, 20, 0); | |
1018 | class_ptr = this_try->byte_info; | |
252b5132 | 1019 | |
e0c6ed95 | 1020 | top: |
252b5132 RH |
1021 | for (nibble = 0; c = *class_ptr++; nibble++) |
1022 | { | |
1023 | ||
1024 | switch (c & CLASS_MASK) | |
1025 | { | |
1026 | default: | |
252b5132 | 1027 | abort (); |
e0c6ed95 | 1028 | |
252b5132 | 1029 | case CLASS_ADDRESS: |
e0c6ed95 | 1030 | /* Direct address, we don't cope with the SS mode right now. */ |
252b5132 RH |
1031 | if (segmented_mode) |
1032 | { | |
1033 | da_operand->X_add_number |= 0x80000000; | |
1034 | output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8); | |
1035 | } | |
1036 | else | |
1037 | { | |
1038 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1039 | } | |
1040 | da_operand = 0; | |
1041 | break; | |
1042 | case CLASS_DISP8: | |
e0c6ed95 | 1043 | /* pc rel 8 bit */ |
252b5132 RH |
1044 | output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2); |
1045 | da_operand = 0; | |
1046 | break; | |
1047 | ||
1048 | case CLASS_0DISP7: | |
e0c6ed95 | 1049 | /* pc rel 7 bit */ |
252b5132 RH |
1050 | *output_ptr = 0; |
1051 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
1052 | da_operand = 0; | |
1053 | break; | |
1054 | ||
1055 | case CLASS_1DISP7: | |
e0c6ed95 | 1056 | /* pc rel 7 bit */ |
252b5132 RH |
1057 | *output_ptr = 0x80; |
1058 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
e0c6ed95 | 1059 | output_ptr[-2] = 0x8; |
252b5132 RH |
1060 | da_operand = 0; |
1061 | break; | |
1062 | ||
1063 | case CLASS_BIT_1OR2: | |
1064 | *output_ptr = c & 0xf; | |
1065 | if (imm_operand) | |
1066 | { | |
1067 | if (imm_operand->X_add_number == 2) | |
e0c6ed95 | 1068 | *output_ptr |= 2; |
252b5132 | 1069 | else if (imm_operand->X_add_number != 1) |
e0c6ed95 | 1070 | as_bad (_("immediate must be 1 or 2")); |
252b5132 RH |
1071 | } |
1072 | else | |
e0c6ed95 | 1073 | as_bad (_("immediate 1 or 2 expected")); |
252b5132 RH |
1074 | output_ptr++; |
1075 | break; | |
1076 | case CLASS_CC: | |
1077 | *output_ptr++ = the_cc; | |
1078 | break; | |
e0c6ed95 AM |
1079 | case CLASS_0CCC: |
1080 | *output_ptr++ = the_ctrl; | |
1081 | break; | |
1082 | case CLASS_1CCC: | |
1083 | *output_ptr++ = the_ctrl | 0x8; | |
1084 | break; | |
1085 | case CLASS_00II: | |
1086 | *output_ptr++ = (~the_interrupt & 0x3); | |
1087 | break; | |
1088 | case CLASS_01II: | |
1089 | *output_ptr++ = (~the_interrupt & 0x3) | 0x4; | |
1090 | break; | |
1091 | case CLASS_FLAGS: | |
1092 | *output_ptr++ = the_flags; | |
1093 | break; | |
252b5132 RH |
1094 | case CLASS_BIT: |
1095 | *output_ptr++ = c & 0xf; | |
1096 | break; | |
1097 | case CLASS_REGN0: | |
1098 | if (reg[c & 0xf] == 0) | |
e0c6ed95 AM |
1099 | as_bad (_("can't use R0 here")); |
1100 | /* Fall through. */ | |
252b5132 RH |
1101 | case CLASS_REG: |
1102 | case CLASS_REG_BYTE: | |
1103 | case CLASS_REG_WORD: | |
1104 | case CLASS_REG_LONG: | |
1105 | case CLASS_REG_QUAD: | |
e0c6ed95 | 1106 | /* Insert bit mattern of right reg. */ |
252b5132 RH |
1107 | *output_ptr++ = reg[c & 0xf]; |
1108 | break; | |
1109 | case CLASS_DISP: | |
1110 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1111 | da_operand = 0; | |
1112 | break; | |
1113 | ||
1114 | case CLASS_IMM: | |
1115 | { | |
1116 | nib = 0; | |
1117 | switch (c & ARG_MASK) | |
1118 | { | |
1119 | case ARG_IMM4: | |
1120 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1121 | break; | |
1122 | case ARG_IMM4M1: | |
1123 | imm_operand->X_add_number--; | |
1124 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1125 | break; | |
1126 | case ARG_IMMNMINUS1: | |
1127 | imm_operand->X_add_number--; | |
1128 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1129 | break; | |
1130 | case ARG_NIM8: | |
1131 | imm_operand->X_add_number = -imm_operand->X_add_number; | |
1132 | case ARG_IMM8: | |
1133 | output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2); | |
1134 | break; | |
1135 | case ARG_IMM16: | |
1136 | output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4); | |
1137 | break; | |
1138 | ||
1139 | case ARG_IMM32: | |
1140 | output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8); | |
1141 | break; | |
1142 | ||
1143 | default: | |
1144 | abort (); | |
1145 | } | |
1146 | } | |
1147 | } | |
1148 | } | |
1149 | ||
e0c6ed95 | 1150 | /* Copy from the nibble buffer into the frag. */ |
252b5132 RH |
1151 | { |
1152 | int length = (output_ptr - buffer) / 2; | |
1153 | char *src = buffer; | |
1154 | char *fragp = frag_more (length); | |
1155 | ||
1156 | while (src < output_ptr) | |
1157 | { | |
1158 | *fragp = (src[0] << 4) | src[1]; | |
1159 | src += 2; | |
1160 | fragp++; | |
1161 | } | |
252b5132 | 1162 | } |
252b5132 RH |
1163 | } |
1164 | ||
1165 | /* This is the guts of the machine-dependent assembler. STR points to a | |
1994a7c7 NC |
1166 | machine dependent instruction. This function is supposed to emit |
1167 | the frags/bytes it assembles to. */ | |
252b5132 RH |
1168 | |
1169 | void | |
c0fecd35 AM |
1170 | md_assemble (str) |
1171 | char *str; | |
252b5132 RH |
1172 | { |
1173 | char *op_start; | |
1174 | char *op_end; | |
1175 | unsigned int i; | |
1176 | struct z8k_op operand[3]; | |
1177 | opcode_entry_type *opcode; | |
1178 | opcode_entry_type *prev_opcode; | |
1179 | ||
1180 | char *dot = 0; | |
1181 | char c; | |
1182 | ||
e0c6ed95 | 1183 | /* Drop leading whitespace. */ |
252b5132 RH |
1184 | while (*str == ' ') |
1185 | str++; | |
1186 | ||
e0c6ed95 | 1187 | /* Find the op code end. */ |
252b5132 RH |
1188 | for (op_start = op_end = str; |
1189 | *op_end != 0 && *op_end != ' '; | |
1190 | op_end++) | |
e0c6ed95 | 1191 | ; |
252b5132 RH |
1192 | |
1193 | if (op_end == op_start) | |
1194 | { | |
1195 | as_bad (_("can't find opcode ")); | |
1196 | } | |
1197 | c = *op_end; | |
1198 | ||
1199 | *op_end = 0; | |
1200 | ||
e0c6ed95 | 1201 | opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start); |
252b5132 RH |
1202 | |
1203 | if (opcode == NULL) | |
1204 | { | |
1205 | as_bad (_("unknown opcode")); | |
1206 | return; | |
1207 | } | |
1208 | ||
1209 | if (opcode->opcode == 250) | |
1210 | { | |
e0c6ed95 | 1211 | /* Was really a pseudo op. */ |
252b5132 RH |
1212 | |
1213 | pseudo_typeS *p; | |
1214 | char oc; | |
1215 | ||
1216 | char *old = input_line_pointer; | |
1217 | *op_end = c; | |
1218 | ||
252b5132 RH |
1219 | input_line_pointer = op_end; |
1220 | ||
1221 | oc = *old; | |
1222 | *old = '\n'; | |
1223 | while (*input_line_pointer == ' ') | |
1224 | input_line_pointer++; | |
1225 | p = (pseudo_typeS *) (opcode->func); | |
1226 | ||
1227 | (p->poc_handler) (p->poc_val); | |
1228 | input_line_pointer = old; | |
1229 | *old = oc; | |
1230 | } | |
1231 | else | |
1232 | { | |
e0c6ed95 | 1233 | input_line_pointer = get_operands (opcode, op_end, operand); |
252b5132 RH |
1234 | prev_opcode = opcode; |
1235 | ||
1236 | opcode = get_specific (opcode, operand); | |
1237 | ||
1238 | if (opcode == 0) | |
1239 | { | |
e0c6ed95 | 1240 | /* Couldn't find an opcode which matched the operands. */ |
252b5132 RH |
1241 | char *where = frag_more (2); |
1242 | ||
1243 | where[0] = 0x0; | |
1244 | where[1] = 0x0; | |
1245 | ||
1246 | as_bad (_("Can't find opcode to match operands")); | |
1247 | return; | |
1248 | } | |
1249 | ||
1250 | build_bytes (opcode, operand); | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | void | |
c0fecd35 AM |
1255 | tc_crawl_symbol_chain (headers) |
1256 | object_headers *headers; | |
252b5132 RH |
1257 | { |
1258 | printf (_("call to tc_crawl_symbol_chain \n")); | |
1259 | } | |
1260 | ||
1261 | symbolS * | |
c0fecd35 AM |
1262 | md_undefined_symbol (name) |
1263 | char *name; | |
252b5132 RH |
1264 | { |
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | void | |
c0fecd35 AM |
1269 | tc_headers_hook (headers) |
1270 | object_headers *headers; | |
252b5132 RH |
1271 | { |
1272 | printf (_("call to tc_headers_hook \n")); | |
1273 | } | |
1274 | ||
e0c6ed95 AM |
1275 | /* Various routines to kill one day. */ |
1276 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
1277 | #define MAX_LITTLENUMS 6 |
1278 | ||
e0c6ed95 AM |
1279 | /* Turn a string in input_line_pointer into a floating point constant |
1280 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
1281 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
1282 | returned, or NULL on OK. */ | |
1283 | ||
252b5132 RH |
1284 | char * |
1285 | md_atof (type, litP, sizeP) | |
1286 | char type; | |
1287 | char *litP; | |
1288 | int *sizeP; | |
1289 | { | |
1290 | int prec; | |
1291 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1292 | LITTLENUM_TYPE *wordP; | |
1293 | char *t; | |
1294 | char *atof_ieee (); | |
1295 | ||
1296 | switch (type) | |
1297 | { | |
1298 | case 'f': | |
1299 | case 'F': | |
1300 | case 's': | |
1301 | case 'S': | |
1302 | prec = 2; | |
1303 | break; | |
1304 | ||
1305 | case 'd': | |
1306 | case 'D': | |
1307 | case 'r': | |
1308 | case 'R': | |
1309 | prec = 4; | |
1310 | break; | |
1311 | ||
1312 | case 'x': | |
1313 | case 'X': | |
1314 | prec = 6; | |
1315 | break; | |
1316 | ||
1317 | case 'p': | |
1318 | case 'P': | |
1319 | prec = 6; | |
1320 | break; | |
1321 | ||
1322 | default: | |
1323 | *sizeP = 0; | |
1324 | return _("Bad call to MD_ATOF()"); | |
1325 | } | |
1326 | t = atof_ieee (input_line_pointer, type, words); | |
1327 | if (t) | |
1328 | input_line_pointer = t; | |
1329 | ||
1330 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1331 | for (wordP = words; prec--;) | |
1332 | { | |
1333 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1334 | litP += sizeof (LITTLENUM_TYPE); | |
1335 | } | |
1336 | return 0; | |
1337 | } | |
1338 | \f | |
1339 | CONST char *md_shortopts = "z:"; | |
e0c6ed95 | 1340 | |
252b5132 RH |
1341 | struct option md_longopts[] = { |
1342 | {NULL, no_argument, NULL, 0} | |
1343 | }; | |
e0c6ed95 AM |
1344 | |
1345 | size_t md_longopts_size = sizeof (md_longopts); | |
252b5132 RH |
1346 | |
1347 | int | |
1348 | md_parse_option (c, arg) | |
1349 | int c; | |
1350 | char *arg; | |
1351 | { | |
1352 | switch (c) | |
1353 | { | |
1354 | case 'z': | |
1355 | if (!strcmp (arg, "8001")) | |
1356 | s_segm (); | |
1357 | else if (!strcmp (arg, "8002")) | |
1358 | s_unseg (); | |
1359 | else | |
1360 | { | |
1361 | as_bad (_("invalid architecture -z%s"), arg); | |
1362 | return 0; | |
1363 | } | |
1364 | break; | |
1365 | ||
1366 | default: | |
1367 | return 0; | |
1368 | } | |
1369 | ||
1370 | return 1; | |
1371 | } | |
1372 | ||
1373 | void | |
1374 | md_show_usage (stream) | |
1375 | FILE *stream; | |
1376 | { | |
e0c6ed95 | 1377 | fprintf (stream, _("\ |
252b5132 RH |
1378 | Z8K options:\n\ |
1379 | -z8001 generate segmented code\n\ | |
1380 | -z8002 generate unsegmented code\n")); | |
1381 | } | |
1382 | \f | |
1383 | void | |
1384 | tc_aout_fix_to_chars () | |
1385 | { | |
1386 | printf (_("call to tc_aout_fix_to_chars \n")); | |
1387 | abort (); | |
1388 | } | |
1389 | ||
1390 | void | |
1391 | md_convert_frag (headers, seg, fragP) | |
1392 | object_headers *headers; | |
1393 | segT seg; | |
1394 | fragS *fragP; | |
1395 | { | |
1396 | printf (_("call to md_convert_frag \n")); | |
1397 | abort (); | |
1398 | } | |
1399 | ||
1400 | valueT | |
c0fecd35 AM |
1401 | md_section_align (seg, size) |
1402 | segT seg; | |
1403 | valueT size; | |
252b5132 | 1404 | { |
e0c6ed95 AM |
1405 | return ((size + (1 << section_alignment[(int) seg]) - 1) |
1406 | & (-1 << section_alignment[(int) seg])); | |
252b5132 RH |
1407 | |
1408 | } | |
1409 | ||
1410 | void | |
1411 | md_apply_fix (fixP, val) | |
1412 | fixS *fixP; | |
1413 | long val; | |
1414 | { | |
1415 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
1416 | ||
1417 | switch (fixP->fx_r_type) | |
1418 | { | |
1419 | case R_IMM4L: | |
1420 | buf[0] = (buf[0] & 0xf0) | ((buf[0] + val) & 0xf); | |
1421 | break; | |
1422 | ||
1423 | case R_JR: | |
1424 | ||
1425 | *buf++ = val; | |
e0c6ed95 AM |
1426 | #if 0 |
1427 | if (val != 0) | |
1428 | abort (); | |
1429 | #endif | |
252b5132 RH |
1430 | break; |
1431 | ||
1432 | case R_DISP7: | |
1433 | ||
1434 | *buf++ += val; | |
e0c6ed95 AM |
1435 | #if 0 |
1436 | if (val != 0) | |
1437 | abort (); | |
1438 | #endif | |
252b5132 RH |
1439 | break; |
1440 | ||
1441 | case R_IMM8: | |
1442 | buf[0] += val; | |
1443 | break; | |
1444 | case R_IMM16: | |
1445 | *buf++ = (val >> 8); | |
1446 | *buf++ = val; | |
1447 | break; | |
1448 | case R_IMM32: | |
1449 | *buf++ = (val >> 24); | |
1450 | *buf++ = (val >> 16); | |
1451 | *buf++ = (val >> 8); | |
1452 | *buf++ = val; | |
1453 | break; | |
1454 | #if 0 | |
1455 | case R_DA | R_SEG: | |
1456 | *buf++ = (val >> 16); | |
1457 | *buf++ = 0x00; | |
1458 | *buf++ = (val >> 8); | |
1459 | *buf++ = val; | |
1460 | break; | |
1461 | #endif | |
1462 | ||
1463 | case 0: | |
1464 | md_number_to_chars (buf, val, fixP->fx_size); | |
1465 | break; | |
1466 | ||
1467 | default: | |
1468 | abort (); | |
252b5132 RH |
1469 | } |
1470 | } | |
1471 | ||
1472 | int | |
1473 | md_estimate_size_before_relax (fragP, segment_type) | |
1474 | register fragS *fragP; | |
1475 | register segT segment_type; | |
1476 | { | |
1477 | printf (_("call tomd_estimate_size_before_relax \n")); | |
1478 | abort (); | |
1479 | } | |
1480 | ||
e0c6ed95 | 1481 | /* Put number into target byte order. */ |
252b5132 RH |
1482 | |
1483 | void | |
c0fecd35 AM |
1484 | md_number_to_chars (ptr, use, nbytes) |
1485 | char *ptr; | |
1486 | valueT use; | |
1487 | int nbytes; | |
252b5132 RH |
1488 | { |
1489 | number_to_chars_bigendian (ptr, use, nbytes); | |
1490 | } | |
e0c6ed95 | 1491 | |
252b5132 RH |
1492 | long |
1493 | md_pcrel_from (fixP) | |
1494 | fixS *fixP; | |
1495 | { | |
1496 | abort (); | |
1497 | } | |
1498 | ||
1499 | void | |
1500 | tc_coff_symbol_emit_hook (s) | |
49309057 | 1501 | symbolS *s; |
252b5132 RH |
1502 | { |
1503 | } | |
1504 | ||
1505 | void | |
1506 | tc_reloc_mangle (fix_ptr, intr, base) | |
1507 | fixS *fix_ptr; | |
1508 | struct internal_reloc *intr; | |
1509 | bfd_vma base; | |
1510 | ||
1511 | { | |
1512 | symbolS *symbol_ptr; | |
1513 | ||
e0c6ed95 AM |
1514 | if (fix_ptr->fx_addsy |
1515 | && fix_ptr->fx_subsy) | |
252b5132 RH |
1516 | { |
1517 | symbolS *add = fix_ptr->fx_addsy; | |
1518 | symbolS *sub = fix_ptr->fx_subsy; | |
e0c6ed95 AM |
1519 | |
1520 | if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub)) | |
1521 | as_bad (_("Can't subtract symbols in different sections %s %s"), | |
1522 | S_GET_NAME (add), S_GET_NAME (sub)); | |
1523 | else | |
252b5132 | 1524 | { |
e0c6ed95 AM |
1525 | int diff = S_GET_VALUE (add) - S_GET_VALUE (sub); |
1526 | ||
1527 | fix_ptr->fx_addsy = 0; | |
1528 | fix_ptr->fx_subsy = 0; | |
1529 | fix_ptr->fx_offset += diff; | |
252b5132 | 1530 | } |
252b5132 RH |
1531 | } |
1532 | symbol_ptr = fix_ptr->fx_addsy; | |
1533 | ||
1534 | /* If this relocation is attached to a symbol then it's ok | |
e0c6ed95 | 1535 | to output it. */ |
252b5132 RH |
1536 | if (fix_ptr->fx_r_type == 0) |
1537 | { | |
e0c6ed95 | 1538 | /* cons likes to create reloc32's whatever the size of the reloc. */ |
252b5132 RH |
1539 | switch (fix_ptr->fx_size) |
1540 | { | |
1541 | case 2: | |
1542 | intr->r_type = R_IMM16; | |
1543 | break; | |
1544 | case 1: | |
1545 | intr->r_type = R_IMM8; | |
1546 | break; | |
1547 | case 4: | |
1548 | intr->r_type = R_IMM32; | |
1549 | break; | |
1550 | default: | |
1551 | abort (); | |
1552 | } | |
252b5132 RH |
1553 | } |
1554 | else | |
e0c6ed95 | 1555 | intr->r_type = fix_ptr->fx_r_type; |
252b5132 RH |
1556 | |
1557 | intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base; | |
1558 | intr->r_offset = fix_ptr->fx_offset; | |
1559 | ||
1560 | if (symbol_ptr) | |
1561 | intr->r_symndx = symbol_ptr->sy_number; | |
1562 | else | |
1563 | intr->r_symndx = -1; | |
1564 | } |