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 | if (strcmp (opcode->name, prev_name)) |
163 | { | |
164 | hash_insert (opcode_hash_control, opcode->name, (char *) opcode); | |
165 | idx++; | |
166 | } | |
167 | opcode->idx = idx; | |
168 | prev_name = opcode->name; | |
169 | } | |
170 | ||
e0c6ed95 | 171 | /* Default to z8002. */ |
252b5132 RH |
172 | s_unseg (); |
173 | ||
e0c6ed95 | 174 | /* Insert the pseudo ops, too. */ |
252b5132 RH |
175 | for (idx = 0; md_pseudo_table[idx].poc_name; idx++) |
176 | { | |
177 | opcode_entry_type *fake_opcode; | |
178 | fake_opcode = (opcode_entry_type *) malloc (sizeof (opcode_entry_type)); | |
879db8be NC |
179 | fake_opcode->name = md_pseudo_table[idx].poc_name; |
180 | fake_opcode->func = (void *) (md_pseudo_table + idx); | |
252b5132 RH |
181 | fake_opcode->opcode = 250; |
182 | hash_insert (opcode_hash_control, fake_opcode->name, fake_opcode); | |
183 | } | |
184 | ||
185 | linkrelax = 1; | |
186 | } | |
187 | ||
19d63e5d | 188 | struct z8k_exp { |
252b5132 RH |
189 | char *e_beg; |
190 | char *e_end; | |
191 | expressionS e_exp; | |
192 | }; | |
e0c6ed95 | 193 | |
19d63e5d | 194 | typedef struct z8k_op { |
e0c6ed95 AM |
195 | /* 'b','w','r','q'. */ |
196 | char regsize; | |
197 | ||
198 | /* 0 .. 15. */ | |
199 | unsigned int reg; | |
252b5132 RH |
200 | |
201 | int mode; | |
202 | ||
e0c6ed95 AM |
203 | /* Any other register associated with the mode. */ |
204 | unsigned int x_reg; | |
205 | ||
206 | /* Any expression. */ | |
207 | expressionS exp; | |
19d63e5d | 208 | } op_type; |
252b5132 RH |
209 | |
210 | static expressionS *da_operand; | |
211 | static expressionS *imm_operand; | |
212 | ||
213 | int reg[16]; | |
214 | int the_cc; | |
215 | int the_ctrl; | |
216 | int the_flags; | |
217 | int the_interrupt; | |
218 | ||
219 | char * | |
c0fecd35 AM |
220 | whatreg (reg, src) |
221 | int *reg; | |
222 | char *src; | |
252b5132 RH |
223 | { |
224 | if (isdigit (src[1])) | |
225 | { | |
226 | *reg = (src[0] - '0') * 10 + src[1] - '0'; | |
227 | return src + 2; | |
228 | } | |
229 | else | |
230 | { | |
231 | *reg = (src[0] - '0'); | |
232 | return src + 1; | |
233 | } | |
234 | } | |
235 | ||
e0c6ed95 | 236 | /* Parse operands |
252b5132 | 237 | |
e0c6ed95 AM |
238 | rh0-rh7, rl0-rl7 |
239 | r0-r15 | |
240 | rr0-rr14 | |
241 | rq0--rq12 | |
242 | WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp | |
243 | r0l,r0h,..r7l,r7h | |
244 | @WREG | |
245 | @WREG+ | |
246 | @-WREG | |
247 | #const | |
248 | */ | |
252b5132 | 249 | |
bc0d738a NC |
250 | /* Try to parse a reg name. Return a pointer to the first character |
251 | in SRC after the reg name. */ | |
252 | ||
252b5132 | 253 | char * |
c0fecd35 AM |
254 | parse_reg (src, mode, reg) |
255 | char *src; | |
256 | int *mode; | |
257 | unsigned int *reg; | |
252b5132 RH |
258 | { |
259 | char *res = 0; | |
260 | char regno; | |
261 | ||
28bab82b | 262 | if (src[0] == 's' && src[1] == 'p' && (src[2] == 0 || src[2] == ',')) |
252b5132 RH |
263 | { |
264 | if (segmented_mode) | |
e0c6ed95 AM |
265 | { |
266 | *mode = CLASS_REG_LONG; | |
267 | *reg = 14; | |
268 | } | |
252b5132 | 269 | else |
e0c6ed95 AM |
270 | { |
271 | *mode = CLASS_REG_WORD; | |
272 | *reg = 15; | |
273 | } | |
252b5132 RH |
274 | return src + 2; |
275 | } | |
276 | if (src[0] == 'r') | |
277 | { | |
278 | if (src[1] == 'r') | |
e0c6ed95 | 279 | { |
28bab82b NC |
280 | if (src[2] < '0' || src[2] > '9') |
281 | return res; /* Assume no register name but a label starting with 'rr'. */ | |
e0c6ed95 AM |
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 | 289 | { |
28bab82b NC |
290 | if (src[2] < '0' || src[2] > '9') |
291 | return res; /* Assume no register name but a label starting with 'rh'. */ | |
e0c6ed95 AM |
292 | *mode = CLASS_REG_BYTE; |
293 | res = whatreg (reg, src + 2); | |
252b5132 RH |
294 | regno = *reg; |
295 | if (regno > 7) | |
e0c6ed95 AM |
296 | as_warn (_("register rh%d, out of range."), regno); |
297 | } | |
252b5132 | 298 | else if (src[1] == 'l') |
e0c6ed95 | 299 | { |
28bab82b NC |
300 | if (src[2] < '0' || src[2] > '9') |
301 | return res; /* Assume no register name but a label starting with 'rl'. */ | |
e0c6ed95 AM |
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 | 310 | { |
28bab82b NC |
311 | if (src[2] < '0' || src[2] > '9') |
312 | return res; /* Assume no register name but a label starting with 'rq'. */ | |
e0c6ed95 AM |
313 | *mode = CLASS_REG_QUAD; |
314 | res = whatreg (reg, src + 2); | |
252b5132 RH |
315 | regno = *reg; |
316 | if (regno > 12) | |
e0c6ed95 AM |
317 | as_warn (_("register rq%d, out of range."), regno); |
318 | } | |
252b5132 | 319 | else |
e0c6ed95 | 320 | { |
28bab82b NC |
321 | if (src[1] < '0' || src[1] > '9') |
322 | return res; /* Assume no register name but a label starting with 'r'. */ | |
e0c6ed95 AM |
323 | *mode = CLASS_REG_WORD; |
324 | res = whatreg (reg, src + 1); | |
252b5132 RH |
325 | regno = *reg; |
326 | if (regno > 15) | |
e0c6ed95 AM |
327 | as_warn (_("register r%d, out of range."), regno); |
328 | } | |
252b5132 RH |
329 | } |
330 | return res; | |
252b5132 RH |
331 | } |
332 | ||
333 | char * | |
c0fecd35 AM |
334 | parse_exp (s, op) |
335 | char *s; | |
336 | expressionS *op; | |
252b5132 RH |
337 | { |
338 | char *save = input_line_pointer; | |
339 | char *new; | |
340 | ||
341 | input_line_pointer = s; | |
342 | expression (op); | |
343 | if (op->X_op == O_absent) | |
344 | as_bad (_("missing operand")); | |
345 | new = input_line_pointer; | |
346 | input_line_pointer = save; | |
347 | return new; | |
348 | } | |
349 | ||
350 | /* The many forms of operand: | |
351 | ||
352 | <rb> | |
353 | <r> | |
354 | <rr> | |
355 | <rq> | |
356 | @r | |
357 | #exp | |
358 | exp | |
359 | exp(r) | |
360 | r(#exp) | |
361 | r(r) | |
252b5132 RH |
362 | */ |
363 | ||
e0c6ed95 | 364 | static char * |
c0fecd35 AM |
365 | checkfor (ptr, what) |
366 | char *ptr; | |
367 | char what; | |
252b5132 RH |
368 | { |
369 | if (*ptr == what) | |
370 | ptr++; | |
371 | else | |
e0c6ed95 AM |
372 | as_bad (_("expected %c"), what); |
373 | ||
252b5132 RH |
374 | return ptr; |
375 | } | |
376 | ||
e0c6ed95 AM |
377 | /* Make sure the mode supplied is the size of a word. */ |
378 | ||
252b5132 | 379 | static void |
c0fecd35 AM |
380 | regword (mode, string) |
381 | int mode; | |
382 | char *string; | |
252b5132 RH |
383 | { |
384 | int ok; | |
385 | ||
386 | ok = CLASS_REG_WORD; | |
387 | if (ok != mode) | |
388 | { | |
389 | as_bad (_("register is wrong size for a word %s"), string); | |
390 | } | |
391 | } | |
392 | ||
e0c6ed95 AM |
393 | /* Make sure the mode supplied is the size of an address. */ |
394 | ||
252b5132 | 395 | static void |
c0fecd35 AM |
396 | regaddr (mode, string) |
397 | int mode; | |
398 | char *string; | |
252b5132 RH |
399 | { |
400 | int ok; | |
401 | ||
402 | ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD; | |
403 | if (ok != mode) | |
404 | { | |
405 | as_bad (_("register is wrong size for address %s"), string); | |
406 | } | |
407 | } | |
408 | ||
19d63e5d | 409 | struct ctrl_names { |
e0c6ed95 AM |
410 | int value; |
411 | char *name; | |
252b5132 RH |
412 | }; |
413 | ||
e0c6ed95 | 414 | struct ctrl_names ctrl_table[] = { |
879db8be NC |
415 | { 0x2, "fcw" }, |
416 | { 0x3, "refresh" }, | |
417 | { 0x4, "psapseg" }, | |
418 | { 0x5, "psapoff" }, | |
419 | { 0x5, "psap" }, | |
420 | { 0x6, "nspseg" }, | |
421 | { 0x7, "nspoff" }, | |
422 | { 0x7, "nsp" }, | |
423 | { 0 , 0 } | |
252b5132 | 424 | }; |
e0c6ed95 | 425 | |
252b5132 | 426 | static void |
c0fecd35 AM |
427 | get_ctrl_operand (ptr, mode, dst) |
428 | char **ptr; | |
429 | struct z8k_op *mode; | |
879db8be | 430 | unsigned int dst ATTRIBUTE_UNUSED; |
252b5132 RH |
431 | { |
432 | char *src = *ptr; | |
252b5132 RH |
433 | int i; |
434 | ||
435 | while (*src == ' ') | |
436 | src++; | |
437 | ||
438 | mode->mode = CLASS_CTRL; | |
439 | for (i = 0; ctrl_table[i].name; i++) | |
440 | { | |
441 | int j; | |
442 | ||
443 | for (j = 0; ctrl_table[i].name[j]; j++) | |
e0c6ed95 AM |
444 | { |
445 | if (ctrl_table[i].name[j] != src[j]) | |
446 | goto fail; | |
447 | } | |
252b5132 RH |
448 | the_ctrl = ctrl_table[i].value; |
449 | *ptr = src + j; | |
450 | return; | |
e0c6ed95 AM |
451 | fail: |
452 | ; | |
252b5132 RH |
453 | } |
454 | the_ctrl = 0; | |
455 | return; | |
456 | } | |
457 | ||
19d63e5d | 458 | struct flag_names { |
252b5132 RH |
459 | int value; |
460 | char *name; | |
461 | ||
462 | }; | |
463 | ||
e0c6ed95 | 464 | struct flag_names flag_table[] = { |
879db8be NC |
465 | { 0x1, "p" }, |
466 | { 0x1, "v" }, | |
467 | { 0x2, "s" }, | |
468 | { 0x4, "z" }, | |
469 | { 0x8, "c" }, | |
470 | { 0x0, "+" }, | |
471 | { 0, 0 } | |
252b5132 RH |
472 | }; |
473 | ||
474 | static void | |
c0fecd35 AM |
475 | get_flags_operand (ptr, mode, dst) |
476 | char **ptr; | |
477 | struct z8k_op *mode; | |
879db8be | 478 | unsigned int dst ATTRIBUTE_UNUSED; |
252b5132 RH |
479 | { |
480 | char *src = *ptr; | |
252b5132 RH |
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 | ||
19d63e5d | 510 | struct interrupt_names { |
252b5132 RH |
511 | int value; |
512 | char *name; | |
513 | ||
514 | }; | |
515 | ||
19d63e5d | 516 | struct interrupt_names intr_table[] = { |
879db8be NC |
517 | { 0x1, "nvi" }, |
518 | { 0x2, "vi" }, | |
519 | { 0x3, "both" }, | |
520 | { 0x3, "all" }, | |
521 | { 0, 0 } | |
252b5132 RH |
522 | }; |
523 | ||
524 | static void | |
c0fecd35 AM |
525 | get_interrupt_operand (ptr, mode, dst) |
526 | char **ptr; | |
527 | struct z8k_op *mode; | |
879db8be | 528 | unsigned int dst ATTRIBUTE_UNUSED; |
252b5132 RH |
529 | { |
530 | char *src = *ptr; | |
252b5132 RH |
531 | int i; |
532 | ||
533 | while (*src == ' ') | |
534 | src++; | |
535 | ||
536 | mode->mode = CLASS_IMM; | |
537 | for (i = 0; intr_table[i].name; i++) | |
538 | { | |
539 | int j; | |
540 | ||
541 | for (j = 0; intr_table[i].name[j]; j++) | |
e0c6ed95 AM |
542 | { |
543 | if (intr_table[i].name[j] != src[j]) | |
544 | goto fail; | |
545 | } | |
252b5132 RH |
546 | the_interrupt = intr_table[i].value; |
547 | *ptr = src + j; | |
548 | return; | |
e0c6ed95 AM |
549 | fail: |
550 | ; | |
252b5132 RH |
551 | } |
552 | the_interrupt = 0x0; | |
553 | return; | |
554 | } | |
555 | ||
19d63e5d | 556 | struct cc_names { |
252b5132 RH |
557 | int value; |
558 | char *name; | |
559 | ||
560 | }; | |
561 | ||
e0c6ed95 | 562 | struct cc_names table[] = { |
879db8be NC |
563 | { 0x0, "f" }, |
564 | { 0x1, "lt" }, | |
565 | { 0x2, "le" }, | |
566 | { 0x3, "ule" }, | |
567 | { 0x4, "ov" }, | |
568 | { 0x4, "pe" }, | |
569 | { 0x5, "mi" }, | |
570 | { 0x6, "eq" }, | |
571 | { 0x6, "z" }, | |
572 | { 0x7, "c" }, | |
573 | { 0x7, "ult" }, | |
574 | { 0x8, "t" }, | |
575 | { 0x9, "ge" }, | |
576 | { 0xa, "gt" }, | |
577 | { 0xb, "ugt" }, | |
578 | { 0xc, "nov" }, | |
579 | { 0xc, "po" }, | |
580 | { 0xd, "pl" }, | |
581 | { 0xe, "ne" }, | |
582 | { 0xe, "nz" }, | |
583 | { 0xf, "nc" }, | |
584 | { 0xf, "uge" }, | |
585 | { 0 , 0 } | |
252b5132 RH |
586 | }; |
587 | ||
588 | static void | |
c0fecd35 AM |
589 | get_cc_operand (ptr, mode, dst) |
590 | char **ptr; | |
591 | struct z8k_op *mode; | |
879db8be | 592 | unsigned int dst ATTRIBUTE_UNUSED; |
252b5132 RH |
593 | { |
594 | char *src = *ptr; | |
252b5132 RH |
595 | int i; |
596 | ||
597 | while (*src == ' ') | |
598 | src++; | |
599 | ||
600 | mode->mode = CLASS_CC; | |
601 | for (i = 0; table[i].name; i++) | |
602 | { | |
603 | int j; | |
604 | ||
605 | for (j = 0; table[i].name[j]; j++) | |
606 | { | |
607 | if (table[i].name[j] != src[j]) | |
608 | goto fail; | |
609 | } | |
610 | the_cc = table[i].value; | |
611 | *ptr = src + j; | |
612 | return; | |
e0c6ed95 AM |
613 | fail: |
614 | ; | |
252b5132 RH |
615 | } |
616 | the_cc = 0x8; | |
617 | } | |
618 | ||
619 | static void | |
620 | get_operand (ptr, mode, dst) | |
621 | char **ptr; | |
622 | struct z8k_op *mode; | |
879db8be | 623 | unsigned int dst ATTRIBUTE_UNUSED; |
252b5132 RH |
624 | { |
625 | char *src = *ptr; | |
626 | char *end; | |
252b5132 RH |
627 | |
628 | mode->mode = 0; | |
629 | ||
630 | while (*src == ' ') | |
631 | src++; | |
632 | if (*src == '#') | |
633 | { | |
634 | mode->mode = CLASS_IMM; | |
635 | imm_operand = &(mode->exp); | |
636 | src = parse_exp (src + 1, &(mode->exp)); | |
637 | } | |
638 | else if (*src == '@') | |
639 | { | |
640 | int d; | |
641 | ||
642 | mode->mode = CLASS_IR; | |
643 | src = parse_reg (src + 1, &d, &mode->reg); | |
644 | } | |
645 | else | |
646 | { | |
647 | int regn; | |
648 | ||
649 | end = parse_reg (src, &mode->mode, ®n); | |
650 | ||
651 | if (end) | |
652 | { | |
653 | int nw, nr; | |
654 | ||
655 | src = end; | |
656 | if (*src == '(') | |
657 | { | |
658 | src++; | |
659 | end = parse_reg (src, &nw, &nr); | |
660 | if (end) | |
661 | { | |
e0c6ed95 | 662 | /* Got Ra(Rb). */ |
252b5132 RH |
663 | src = end; |
664 | ||
665 | if (*src != ')') | |
e0c6ed95 | 666 | as_bad (_("Missing ) in ra(rb)")); |
252b5132 | 667 | else |
e0c6ed95 | 668 | src++; |
252b5132 RH |
669 | |
670 | regaddr (mode->mode, "ra(rb) ra"); | |
e0c6ed95 AM |
671 | #if 0 |
672 | regword (mode->mode, "ra(rb) rb"); | |
673 | #endif | |
252b5132 RH |
674 | mode->mode = CLASS_BX; |
675 | mode->reg = regn; | |
676 | mode->x_reg = nr; | |
677 | reg[ARG_RX] = nr; | |
678 | } | |
679 | else | |
680 | { | |
e0c6ed95 | 681 | /* Got Ra(disp). */ |
252b5132 RH |
682 | if (*src == '#') |
683 | src++; | |
684 | src = parse_exp (src, &(mode->exp)); | |
685 | src = checkfor (src, ')'); | |
686 | mode->mode = CLASS_BA; | |
687 | mode->reg = regn; | |
688 | mode->x_reg = 0; | |
689 | imm_operand = &(mode->exp); | |
690 | } | |
691 | } | |
692 | else | |
693 | { | |
694 | mode->reg = regn; | |
695 | mode->x_reg = 0; | |
696 | } | |
697 | } | |
698 | else | |
699 | { | |
e0c6ed95 | 700 | /* No initial reg. */ |
252b5132 RH |
701 | src = parse_exp (src, &(mode->exp)); |
702 | if (*src == '(') | |
703 | { | |
704 | src++; | |
705 | end = parse_reg (src, &(mode->mode), ®n); | |
706 | regword (mode->mode, "addr(Ra) ra"); | |
707 | mode->mode = CLASS_X; | |
708 | mode->reg = regn; | |
709 | mode->x_reg = 0; | |
710 | da_operand = &(mode->exp); | |
711 | src = checkfor (end, ')'); | |
712 | } | |
713 | else | |
714 | { | |
e0c6ed95 | 715 | /* Just an address. */ |
252b5132 RH |
716 | mode->mode = CLASS_DA; |
717 | mode->reg = 0; | |
718 | mode->x_reg = 0; | |
719 | da_operand = &(mode->exp); | |
720 | } | |
721 | } | |
722 | } | |
723 | *ptr = src; | |
724 | } | |
725 | ||
e0c6ed95 | 726 | static char * |
252b5132 RH |
727 | get_operands (opcode, op_end, operand) |
728 | opcode_entry_type *opcode; | |
729 | char *op_end; | |
730 | op_type *operand; | |
731 | { | |
732 | char *ptr = op_end; | |
e0c6ed95 AM |
733 | char *savptr; |
734 | ||
252b5132 RH |
735 | switch (opcode->noperands) |
736 | { | |
737 | case 0: | |
738 | operand[0].mode = 0; | |
739 | operand[1].mode = 0; | |
740 | break; | |
741 | ||
742 | case 1: | |
743 | ptr++; | |
744 | if (opcode->arg_info[0] == CLASS_CC) | |
e0c6ed95 AM |
745 | { |
746 | get_cc_operand (&ptr, operand + 0, 0); | |
747 | } | |
252b5132 | 748 | else if (opcode->arg_info[0] == CLASS_FLAGS) |
e0c6ed95 AM |
749 | { |
750 | get_flags_operand (&ptr, operand + 0, 0); | |
751 | } | |
752 | else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2))) | |
753 | { | |
754 | get_interrupt_operand (&ptr, operand + 0, 0); | |
755 | } | |
252b5132 | 756 | else |
e0c6ed95 AM |
757 | { |
758 | get_operand (&ptr, operand + 0, 0); | |
759 | } | |
252b5132 RH |
760 | operand[1].mode = 0; |
761 | break; | |
762 | ||
763 | case 2: | |
764 | ptr++; | |
765 | savptr = ptr; | |
766 | if (opcode->arg_info[0] == CLASS_CC) | |
e0c6ed95 AM |
767 | { |
768 | get_cc_operand (&ptr, operand + 0, 0); | |
769 | } | |
252b5132 | 770 | else if (opcode->arg_info[0] == CLASS_CTRL) |
e0c6ed95 AM |
771 | { |
772 | get_ctrl_operand (&ptr, operand + 0, 0); | |
773 | if (the_ctrl == 0) | |
774 | { | |
775 | ptr = savptr; | |
776 | get_operand (&ptr, operand + 0, 0); | |
777 | if (ptr == 0) | |
879db8be | 778 | return NULL; |
e0c6ed95 AM |
779 | if (*ptr == ',') |
780 | ptr++; | |
781 | get_ctrl_operand (&ptr, operand + 1, 1); | |
782 | return ptr; | |
783 | } | |
784 | } | |
252b5132 | 785 | else |
e0c6ed95 AM |
786 | { |
787 | get_operand (&ptr, operand + 0, 0); | |
788 | } | |
252b5132 | 789 | if (ptr == 0) |
879db8be | 790 | return NULL; |
252b5132 | 791 | if (*ptr == ',') |
e0c6ed95 | 792 | ptr++; |
252b5132 RH |
793 | get_operand (&ptr, operand + 1, 1); |
794 | break; | |
795 | ||
796 | case 3: | |
797 | ptr++; | |
798 | get_operand (&ptr, operand + 0, 0); | |
799 | if (*ptr == ',') | |
800 | ptr++; | |
801 | get_operand (&ptr, operand + 1, 1); | |
802 | if (*ptr == ',') | |
803 | ptr++; | |
804 | get_operand (&ptr, operand + 2, 2); | |
805 | break; | |
806 | ||
807 | case 4: | |
808 | ptr++; | |
809 | get_operand (&ptr, operand + 0, 0); | |
810 | if (*ptr == ',') | |
811 | ptr++; | |
812 | get_operand (&ptr, operand + 1, 1); | |
813 | if (*ptr == ',') | |
814 | ptr++; | |
815 | get_operand (&ptr, operand + 2, 2); | |
816 | if (*ptr == ',') | |
817 | ptr++; | |
818 | get_cc_operand (&ptr, operand + 3, 3); | |
819 | break; | |
e0c6ed95 | 820 | |
252b5132 RH |
821 | default: |
822 | abort (); | |
823 | } | |
824 | ||
825 | return ptr; | |
826 | } | |
827 | ||
828 | /* Passed a pointer to a list of opcodes which use different | |
e0c6ed95 AM |
829 | addressing modes. Return the opcode which matches the opcodes |
830 | provided. */ | |
252b5132 | 831 | |
e0c6ed95 | 832 | static opcode_entry_type * |
c0fecd35 AM |
833 | get_specific (opcode, operands) |
834 | opcode_entry_type *opcode; | |
835 | op_type *operands; | |
252b5132 RH |
836 | |
837 | { | |
838 | opcode_entry_type *this_try = opcode; | |
839 | int found = 0; | |
840 | unsigned int noperands = opcode->noperands; | |
841 | ||
879db8be | 842 | int this_index = opcode->idx; |
252b5132 RH |
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 | { | |
879db8be | 851 | unsigned int mode = operands[i].mode; |
252b5132 RH |
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 | ||
879db8be | 915 | #if 0 /* Not used. */ |
252b5132 | 916 | static void |
c0fecd35 AM |
917 | check_operand (operand, width, string) |
918 | struct z8k_op *operand; | |
919 | unsigned int width; | |
920 | char *string; | |
252b5132 RH |
921 | { |
922 | if (operand->exp.X_add_symbol == 0 | |
923 | && operand->exp.X_op_symbol == 0) | |
924 | { | |
925 | ||
e0c6ed95 AM |
926 | /* No symbol involved, let's look at offset, it's dangerous if |
927 | any of the high bits are not 0 or ff's, find out by oring or | |
928 | anding with the width and seeing if the answer is 0 or all | |
929 | fs. */ | |
252b5132 RH |
930 | if ((operand->exp.X_add_number & ~width) != 0 && |
931 | (operand->exp.X_add_number | width) != (~0)) | |
932 | { | |
e0c6ed95 AM |
933 | as_warn (_("operand %s0x%x out of range."), |
934 | string, operand->exp.X_add_number); | |
252b5132 RH |
935 | } |
936 | } | |
937 | ||
938 | } | |
879db8be | 939 | #endif |
252b5132 RH |
940 | |
941 | static char buffer[20]; | |
942 | ||
943 | static void | |
c0fecd35 AM |
944 | newfix (ptr, type, operand) |
945 | int ptr; | |
946 | int type; | |
947 | expressionS *operand; | |
252b5132 RH |
948 | { |
949 | if (operand->X_add_symbol | |
950 | || operand->X_op_symbol | |
951 | || operand->X_add_number) | |
952 | { | |
953 | fix_new_exp (frag_now, | |
954 | ptr, | |
955 | 1, | |
956 | operand, | |
957 | 0, | |
958 | type); | |
959 | } | |
960 | } | |
961 | ||
962 | static char * | |
c0fecd35 AM |
963 | apply_fix (ptr, type, operand, size) |
964 | char *ptr; | |
965 | int type; | |
966 | expressionS *operand; | |
967 | int size; | |
252b5132 RH |
968 | { |
969 | int n = operand->X_add_number; | |
970 | ||
252b5132 | 971 | newfix ((ptr - buffer) / 2, type, operand); |
252b5132 RH |
972 | switch (size) |
973 | { | |
879db8be | 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; | |
879db8be | 979 | case 4: /* 4 nibbles == 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 | } | |
252b5132 | 988 | return ptr; |
252b5132 RH |
989 | } |
990 | ||
e0c6ed95 AM |
991 | /* Now we know what sort of opcodes it is. Let's build the bytes. */ |
992 | ||
252b5132 | 993 | #define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y; |
19d63e5d | 994 | |
252b5132 RH |
995 | static void |
996 | build_bytes (this_try, operand) | |
e0c6ed95 | 997 | opcode_entry_type *this_try; |
879db8be | 998 | struct z8k_op *operand ATTRIBUTE_UNUSED; |
252b5132 | 999 | { |
252b5132 | 1000 | char *output_ptr = buffer; |
252b5132 | 1001 | int c; |
252b5132 RH |
1002 | int nib; |
1003 | int nibble; | |
1004 | unsigned int *class_ptr; | |
1005 | ||
1006 | frag_wane (frag_now); | |
1007 | frag_new (0); | |
1008 | ||
1009 | memset (buffer, 20, 0); | |
1010 | class_ptr = this_try->byte_info; | |
252b5132 | 1011 | |
879db8be | 1012 | for (nibble = 0; (c = *class_ptr++); nibble++) |
252b5132 RH |
1013 | { |
1014 | ||
1015 | switch (c & CLASS_MASK) | |
1016 | { | |
1017 | default: | |
252b5132 | 1018 | abort (); |
e0c6ed95 | 1019 | |
252b5132 | 1020 | case CLASS_ADDRESS: |
e0c6ed95 | 1021 | /* Direct address, we don't cope with the SS mode right now. */ |
252b5132 RH |
1022 | if (segmented_mode) |
1023 | { | |
879db8be | 1024 | /* da_operand->X_add_number |= 0x80000000; -- Now set at relocation time. */ |
252b5132 RH |
1025 | output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8); |
1026 | } | |
1027 | else | |
1028 | { | |
1029 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1030 | } | |
1031 | da_operand = 0; | |
1032 | break; | |
1033 | case CLASS_DISP8: | |
e0c6ed95 | 1034 | /* pc rel 8 bit */ |
252b5132 RH |
1035 | output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2); |
1036 | da_operand = 0; | |
1037 | break; | |
1038 | ||
1039 | case CLASS_0DISP7: | |
e0c6ed95 | 1040 | /* pc rel 7 bit */ |
252b5132 RH |
1041 | *output_ptr = 0; |
1042 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
1043 | da_operand = 0; | |
1044 | break; | |
1045 | ||
1046 | case CLASS_1DISP7: | |
e0c6ed95 | 1047 | /* pc rel 7 bit */ |
252b5132 RH |
1048 | *output_ptr = 0x80; |
1049 | output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2); | |
e0c6ed95 | 1050 | output_ptr[-2] = 0x8; |
252b5132 RH |
1051 | da_operand = 0; |
1052 | break; | |
1053 | ||
1054 | case CLASS_BIT_1OR2: | |
1055 | *output_ptr = c & 0xf; | |
1056 | if (imm_operand) | |
1057 | { | |
1058 | if (imm_operand->X_add_number == 2) | |
e0c6ed95 | 1059 | *output_ptr |= 2; |
252b5132 | 1060 | else if (imm_operand->X_add_number != 1) |
e0c6ed95 | 1061 | as_bad (_("immediate must be 1 or 2")); |
252b5132 RH |
1062 | } |
1063 | else | |
e0c6ed95 | 1064 | as_bad (_("immediate 1 or 2 expected")); |
252b5132 RH |
1065 | output_ptr++; |
1066 | break; | |
1067 | case CLASS_CC: | |
1068 | *output_ptr++ = the_cc; | |
1069 | break; | |
e0c6ed95 AM |
1070 | case CLASS_0CCC: |
1071 | *output_ptr++ = the_ctrl; | |
1072 | break; | |
1073 | case CLASS_1CCC: | |
1074 | *output_ptr++ = the_ctrl | 0x8; | |
1075 | break; | |
1076 | case CLASS_00II: | |
1077 | *output_ptr++ = (~the_interrupt & 0x3); | |
1078 | break; | |
1079 | case CLASS_01II: | |
1080 | *output_ptr++ = (~the_interrupt & 0x3) | 0x4; | |
1081 | break; | |
1082 | case CLASS_FLAGS: | |
1083 | *output_ptr++ = the_flags; | |
1084 | break; | |
252b5132 RH |
1085 | case CLASS_BIT: |
1086 | *output_ptr++ = c & 0xf; | |
1087 | break; | |
1088 | case CLASS_REGN0: | |
1089 | if (reg[c & 0xf] == 0) | |
e0c6ed95 AM |
1090 | as_bad (_("can't use R0 here")); |
1091 | /* Fall through. */ | |
252b5132 RH |
1092 | case CLASS_REG: |
1093 | case CLASS_REG_BYTE: | |
1094 | case CLASS_REG_WORD: | |
1095 | case CLASS_REG_LONG: | |
1096 | case CLASS_REG_QUAD: | |
e0c6ed95 | 1097 | /* Insert bit mattern of right reg. */ |
252b5132 RH |
1098 | *output_ptr++ = reg[c & 0xf]; |
1099 | break; | |
1100 | case CLASS_DISP: | |
6840198f NC |
1101 | switch (c & ARG_MASK) |
1102 | { | |
1103 | case ARG_DISP12: | |
1104 | output_ptr = apply_fix (output_ptr, R_CALLR, da_operand, 4); | |
1105 | break; | |
1106 | case ARG_DISP16: | |
879db8be NC |
1107 | output_ptr = apply_fix (output_ptr, R_REL16, da_operand, 4); |
1108 | break; | |
1109 | default: | |
1110 | output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4); | |
1111 | } | |
252b5132 RH |
1112 | da_operand = 0; |
1113 | break; | |
1114 | ||
1115 | case CLASS_IMM: | |
1116 | { | |
1117 | nib = 0; | |
1118 | switch (c & ARG_MASK) | |
1119 | { | |
1120 | case ARG_IMM4: | |
1121 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1122 | break; | |
1123 | case ARG_IMM4M1: | |
1124 | imm_operand->X_add_number--; | |
1125 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1126 | break; | |
1127 | case ARG_IMMNMINUS1: | |
1128 | imm_operand->X_add_number--; | |
1129 | output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1); | |
1130 | break; | |
1131 | case ARG_NIM8: | |
1132 | imm_operand->X_add_number = -imm_operand->X_add_number; | |
1133 | case ARG_IMM8: | |
1134 | output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2); | |
1135 | break; | |
1136 | case ARG_IMM16: | |
1137 | output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4); | |
1138 | break; | |
1139 | ||
1140 | case ARG_IMM32: | |
1141 | output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8); | |
1142 | break; | |
1143 | ||
1144 | default: | |
1145 | abort (); | |
1146 | } | |
1147 | } | |
1148 | } | |
1149 | } | |
1150 | ||
e0c6ed95 | 1151 | /* Copy from the nibble buffer into the frag. */ |
252b5132 RH |
1152 | { |
1153 | int length = (output_ptr - buffer) / 2; | |
1154 | char *src = buffer; | |
1155 | char *fragp = frag_more (length); | |
1156 | ||
1157 | while (src < output_ptr) | |
1158 | { | |
1159 | *fragp = (src[0] << 4) | src[1]; | |
1160 | src += 2; | |
1161 | fragp++; | |
1162 | } | |
252b5132 | 1163 | } |
252b5132 RH |
1164 | } |
1165 | ||
1166 | /* This is the guts of the machine-dependent assembler. STR points to a | |
1994a7c7 NC |
1167 | machine dependent instruction. This function is supposed to emit |
1168 | the frags/bytes it assembles to. */ | |
252b5132 RH |
1169 | |
1170 | void | |
c0fecd35 AM |
1171 | md_assemble (str) |
1172 | char *str; | |
252b5132 | 1173 | { |
879db8be | 1174 | char c; |
252b5132 RH |
1175 | char *op_start; |
1176 | char *op_end; | |
252b5132 RH |
1177 | struct z8k_op operand[3]; |
1178 | opcode_entry_type *opcode; | |
1179 | opcode_entry_type *prev_opcode; | |
1180 | ||
e0c6ed95 | 1181 | /* Drop leading whitespace. */ |
252b5132 RH |
1182 | while (*str == ' ') |
1183 | str++; | |
1184 | ||
e0c6ed95 | 1185 | /* Find the op code end. */ |
252b5132 RH |
1186 | for (op_start = op_end = str; |
1187 | *op_end != 0 && *op_end != ' '; | |
1188 | op_end++) | |
e0c6ed95 | 1189 | ; |
252b5132 RH |
1190 | |
1191 | if (op_end == op_start) | |
1192 | { | |
1193 | as_bad (_("can't find opcode ")); | |
1194 | } | |
1195 | c = *op_end; | |
1196 | ||
1197 | *op_end = 0; | |
1198 | ||
e0c6ed95 | 1199 | opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start); |
252b5132 RH |
1200 | |
1201 | if (opcode == NULL) | |
1202 | { | |
1203 | as_bad (_("unknown opcode")); | |
1204 | return; | |
1205 | } | |
1206 | ||
1207 | if (opcode->opcode == 250) | |
1208 | { | |
e0c6ed95 | 1209 | /* Was really a pseudo op. */ |
252b5132 RH |
1210 | |
1211 | pseudo_typeS *p; | |
1212 | char oc; | |
1213 | ||
1214 | char *old = input_line_pointer; | |
1215 | *op_end = c; | |
1216 | ||
252b5132 RH |
1217 | input_line_pointer = op_end; |
1218 | ||
1219 | oc = *old; | |
1220 | *old = '\n'; | |
1221 | while (*input_line_pointer == ' ') | |
1222 | input_line_pointer++; | |
1223 | p = (pseudo_typeS *) (opcode->func); | |
1224 | ||
1225 | (p->poc_handler) (p->poc_val); | |
1226 | input_line_pointer = old; | |
1227 | *old = oc; | |
1228 | } | |
1229 | else | |
1230 | { | |
e0c6ed95 | 1231 | input_line_pointer = get_operands (opcode, op_end, operand); |
252b5132 RH |
1232 | prev_opcode = opcode; |
1233 | ||
1234 | opcode = get_specific (opcode, operand); | |
1235 | ||
1236 | if (opcode == 0) | |
1237 | { | |
e0c6ed95 | 1238 | /* Couldn't find an opcode which matched the operands. */ |
252b5132 RH |
1239 | char *where = frag_more (2); |
1240 | ||
1241 | where[0] = 0x0; | |
1242 | where[1] = 0x0; | |
1243 | ||
1244 | as_bad (_("Can't find opcode to match operands")); | |
1245 | return; | |
1246 | } | |
1247 | ||
1248 | build_bytes (opcode, operand); | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | void | |
c0fecd35 | 1253 | tc_crawl_symbol_chain (headers) |
879db8be | 1254 | object_headers *headers ATTRIBUTE_UNUSED; |
252b5132 RH |
1255 | { |
1256 | printf (_("call to tc_crawl_symbol_chain \n")); | |
1257 | } | |
1258 | ||
1259 | symbolS * | |
c0fecd35 | 1260 | md_undefined_symbol (name) |
879db8be | 1261 | char *name ATTRIBUTE_UNUSED; |
252b5132 RH |
1262 | { |
1263 | return 0; | |
1264 | } | |
1265 | ||
1266 | void | |
c0fecd35 | 1267 | tc_headers_hook (headers) |
879db8be | 1268 | object_headers *headers ATTRIBUTE_UNUSED; |
252b5132 RH |
1269 | { |
1270 | printf (_("call to tc_headers_hook \n")); | |
1271 | } | |
1272 | ||
e0c6ed95 AM |
1273 | /* Various routines to kill one day. */ |
1274 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
252b5132 RH |
1275 | #define MAX_LITTLENUMS 6 |
1276 | ||
e0c6ed95 AM |
1277 | /* Turn a string in input_line_pointer into a floating point constant |
1278 | of type TYPE, and store the appropriate bytes in *LITP. The number | |
1279 | of LITTLENUMS emitted is stored in *SIZEP. An error message is | |
1280 | returned, or NULL on OK. */ | |
1281 | ||
252b5132 RH |
1282 | char * |
1283 | md_atof (type, litP, sizeP) | |
1284 | char type; | |
1285 | char *litP; | |
1286 | int *sizeP; | |
1287 | { | |
1288 | int prec; | |
1289 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1290 | LITTLENUM_TYPE *wordP; | |
1291 | char *t; | |
1292 | char *atof_ieee (); | |
1293 | ||
1294 | switch (type) | |
1295 | { | |
1296 | case 'f': | |
1297 | case 'F': | |
1298 | case 's': | |
1299 | case 'S': | |
1300 | prec = 2; | |
1301 | break; | |
1302 | ||
1303 | case 'd': | |
1304 | case 'D': | |
1305 | case 'r': | |
1306 | case 'R': | |
1307 | prec = 4; | |
1308 | break; | |
1309 | ||
1310 | case 'x': | |
1311 | case 'X': | |
1312 | prec = 6; | |
1313 | break; | |
1314 | ||
1315 | case 'p': | |
1316 | case 'P': | |
1317 | prec = 6; | |
1318 | break; | |
1319 | ||
1320 | default: | |
1321 | *sizeP = 0; | |
1322 | return _("Bad call to MD_ATOF()"); | |
1323 | } | |
1324 | t = atof_ieee (input_line_pointer, type, words); | |
1325 | if (t) | |
1326 | input_line_pointer = t; | |
1327 | ||
1328 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1329 | for (wordP = words; prec--;) | |
1330 | { | |
1331 | md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE)); | |
1332 | litP += sizeof (LITTLENUM_TYPE); | |
1333 | } | |
1334 | return 0; | |
1335 | } | |
1336 | \f | |
1337 | CONST char *md_shortopts = "z:"; | |
e0c6ed95 | 1338 | |
252b5132 RH |
1339 | struct option md_longopts[] = { |
1340 | {NULL, no_argument, NULL, 0} | |
1341 | }; | |
e0c6ed95 AM |
1342 | |
1343 | size_t md_longopts_size = sizeof (md_longopts); | |
252b5132 RH |
1344 | |
1345 | int | |
1346 | md_parse_option (c, arg) | |
1347 | int c; | |
1348 | char *arg; | |
1349 | { | |
1350 | switch (c) | |
1351 | { | |
1352 | case 'z': | |
1353 | if (!strcmp (arg, "8001")) | |
1354 | s_segm (); | |
1355 | else if (!strcmp (arg, "8002")) | |
1356 | s_unseg (); | |
1357 | else | |
1358 | { | |
1359 | as_bad (_("invalid architecture -z%s"), arg); | |
1360 | return 0; | |
1361 | } | |
1362 | break; | |
1363 | ||
1364 | default: | |
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | return 1; | |
1369 | } | |
1370 | ||
1371 | void | |
1372 | md_show_usage (stream) | |
1373 | FILE *stream; | |
1374 | { | |
e0c6ed95 | 1375 | fprintf (stream, _("\ |
252b5132 RH |
1376 | Z8K options:\n\ |
1377 | -z8001 generate segmented code\n\ | |
1378 | -z8002 generate unsegmented code\n")); | |
1379 | } | |
1380 | \f | |
1381 | void | |
1382 | tc_aout_fix_to_chars () | |
1383 | { | |
1384 | printf (_("call to tc_aout_fix_to_chars \n")); | |
1385 | abort (); | |
1386 | } | |
1387 | ||
1388 | void | |
1389 | md_convert_frag (headers, seg, fragP) | |
879db8be NC |
1390 | object_headers *headers ATTRIBUTE_UNUSED; |
1391 | segT seg ATTRIBUTE_UNUSED; | |
1392 | fragS *fragP ATTRIBUTE_UNUSED; | |
252b5132 RH |
1393 | { |
1394 | printf (_("call to md_convert_frag \n")); | |
1395 | abort (); | |
1396 | } | |
1397 | ||
1398 | valueT | |
c0fecd35 AM |
1399 | md_section_align (seg, size) |
1400 | segT seg; | |
1401 | valueT size; | |
252b5132 | 1402 | { |
e0c6ed95 AM |
1403 | return ((size + (1 << section_alignment[(int) seg]) - 1) |
1404 | & (-1 << section_alignment[(int) seg])); | |
252b5132 RH |
1405 | |
1406 | } | |
1407 | ||
1408 | void | |
1409 | md_apply_fix (fixP, val) | |
1410 | fixS *fixP; | |
1411 | long val; | |
1412 | { | |
1413 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
1414 | ||
1415 | switch (fixP->fx_r_type) | |
1416 | { | |
1417 | case R_IMM4L: | |
1418 | buf[0] = (buf[0] & 0xf0) | ((buf[0] + val) & 0xf); | |
1419 | break; | |
1420 | ||
1421 | case R_JR: | |
1422 | ||
1423 | *buf++ = val; | |
e0c6ed95 AM |
1424 | #if 0 |
1425 | if (val != 0) | |
1426 | abort (); | |
1427 | #endif | |
252b5132 RH |
1428 | break; |
1429 | ||
1430 | case R_DISP7: | |
1431 | ||
1432 | *buf++ += val; | |
e0c6ed95 AM |
1433 | #if 0 |
1434 | if (val != 0) | |
1435 | abort (); | |
1436 | #endif | |
252b5132 RH |
1437 | break; |
1438 | ||
1439 | case R_IMM8: | |
1440 | buf[0] += val; | |
1441 | break; | |
1442 | case R_IMM16: | |
1443 | *buf++ = (val >> 8); | |
1444 | *buf++ = val; | |
1445 | break; | |
1446 | case R_IMM32: | |
1447 | *buf++ = (val >> 24); | |
1448 | *buf++ = (val >> 16); | |
1449 | *buf++ = (val >> 8); | |
1450 | *buf++ = val; | |
1451 | break; | |
1452 | #if 0 | |
1453 | case R_DA | R_SEG: | |
1454 | *buf++ = (val >> 16); | |
1455 | *buf++ = 0x00; | |
1456 | *buf++ = (val >> 8); | |
1457 | *buf++ = val; | |
1458 | break; | |
1459 | #endif | |
1460 | ||
1461 | case 0: | |
1462 | md_number_to_chars (buf, val, fixP->fx_size); | |
1463 | break; | |
1464 | ||
1465 | default: | |
1466 | abort (); | |
252b5132 RH |
1467 | } |
1468 | } | |
1469 | ||
1470 | int | |
1471 | md_estimate_size_before_relax (fragP, segment_type) | |
879db8be NC |
1472 | register fragS *fragP ATTRIBUTE_UNUSED; |
1473 | register segT segment_type ATTRIBUTE_UNUSED; | |
252b5132 RH |
1474 | { |
1475 | printf (_("call tomd_estimate_size_before_relax \n")); | |
1476 | abort (); | |
1477 | } | |
1478 | ||
e0c6ed95 | 1479 | /* Put number into target byte order. */ |
252b5132 RH |
1480 | |
1481 | void | |
c0fecd35 AM |
1482 | md_number_to_chars (ptr, use, nbytes) |
1483 | char *ptr; | |
1484 | valueT use; | |
1485 | int nbytes; | |
252b5132 RH |
1486 | { |
1487 | number_to_chars_bigendian (ptr, use, nbytes); | |
1488 | } | |
e0c6ed95 | 1489 | |
252b5132 RH |
1490 | long |
1491 | md_pcrel_from (fixP) | |
879db8be | 1492 | fixS *fixP ATTRIBUTE_UNUSED; |
252b5132 RH |
1493 | { |
1494 | abort (); | |
1495 | } | |
1496 | ||
1497 | void | |
1498 | tc_coff_symbol_emit_hook (s) | |
879db8be | 1499 | symbolS *s ATTRIBUTE_UNUSED; |
252b5132 RH |
1500 | { |
1501 | } | |
1502 | ||
1503 | void | |
1504 | tc_reloc_mangle (fix_ptr, intr, base) | |
1505 | fixS *fix_ptr; | |
1506 | struct internal_reloc *intr; | |
1507 | bfd_vma base; | |
1508 | ||
1509 | { | |
1510 | symbolS *symbol_ptr; | |
1511 | ||
e0c6ed95 AM |
1512 | if (fix_ptr->fx_addsy |
1513 | && fix_ptr->fx_subsy) | |
252b5132 RH |
1514 | { |
1515 | symbolS *add = fix_ptr->fx_addsy; | |
1516 | symbolS *sub = fix_ptr->fx_subsy; | |
e0c6ed95 AM |
1517 | |
1518 | if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub)) | |
1519 | as_bad (_("Can't subtract symbols in different sections %s %s"), | |
1520 | S_GET_NAME (add), S_GET_NAME (sub)); | |
1521 | else | |
252b5132 | 1522 | { |
e0c6ed95 AM |
1523 | int diff = S_GET_VALUE (add) - S_GET_VALUE (sub); |
1524 | ||
1525 | fix_ptr->fx_addsy = 0; | |
1526 | fix_ptr->fx_subsy = 0; | |
1527 | fix_ptr->fx_offset += diff; | |
252b5132 | 1528 | } |
252b5132 RH |
1529 | } |
1530 | symbol_ptr = fix_ptr->fx_addsy; | |
1531 | ||
1532 | /* If this relocation is attached to a symbol then it's ok | |
e0c6ed95 | 1533 | to output it. */ |
252b5132 RH |
1534 | if (fix_ptr->fx_r_type == 0) |
1535 | { | |
e0c6ed95 | 1536 | /* cons likes to create reloc32's whatever the size of the reloc. */ |
252b5132 RH |
1537 | switch (fix_ptr->fx_size) |
1538 | { | |
1539 | case 2: | |
1540 | intr->r_type = R_IMM16; | |
1541 | break; | |
1542 | case 1: | |
1543 | intr->r_type = R_IMM8; | |
1544 | break; | |
1545 | case 4: | |
1546 | intr->r_type = R_IMM32; | |
1547 | break; | |
1548 | default: | |
1549 | abort (); | |
1550 | } | |
252b5132 RH |
1551 | } |
1552 | else | |
e0c6ed95 | 1553 | intr->r_type = fix_ptr->fx_r_type; |
252b5132 RH |
1554 | |
1555 | intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base; | |
1556 | intr->r_offset = fix_ptr->fx_offset; | |
1557 | ||
1558 | if (symbol_ptr) | |
1559 | intr->r_symndx = symbol_ptr->sy_number; | |
1560 | else | |
1561 | intr->r_symndx = -1; | |
1562 | } |