Commit | Line | Data |
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e135f41b | 1 | /* tc-pdp11.c - pdp11-specific - |
14127cc4 | 2 | Copyright 2001, 2002, 2004 Free Software Foundation, Inc. |
e135f41b NC |
3 | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | /* | |
21 | Apparently unused functions: | |
22 | md_convert_frag | |
23 | md_estimate_size_before_relax | |
24 | md_create_short_jump | |
25 | md_create_long_jump | |
26 | */ | |
27 | ||
28 | #include "as.h" | |
3882b010 | 29 | #include "safe-ctype.h" |
e135f41b NC |
30 | #include "opcode/pdp11.h" |
31 | ||
32 | static int set_option PARAMS ((char *arg)); | |
33 | static int set_cpu_model PARAMS ((char *arg)); | |
34 | static int set_machine_model PARAMS ((char *arg)); | |
35 | ||
cd3cde86 AM |
36 | extern int flonum_gen2vax PARAMS ((char format_letter, FLONUM_TYPE * f, |
37 | LITTLENUM_TYPE * words)); | |
38 | ||
e135f41b NC |
39 | #define TRUE 1 |
40 | #define FALSE 0 | |
41 | ||
42 | /* | |
43 | * A representation for PDP-11 machine code. | |
44 | */ | |
45 | struct pdp11_code | |
46 | { | |
47 | char *error; | |
48 | int code; | |
49 | int additional; /* is there an additional word? */ | |
50 | int word; /* additional word, if any */ | |
51 | struct | |
52 | { | |
53 | bfd_reloc_code_real_type type; | |
54 | expressionS exp; | |
55 | int pc_rel; | |
56 | } reloc; | |
57 | }; | |
58 | ||
59 | /* | |
60 | * Instruction set extensions. | |
61 | * | |
62 | * If you change this from an array to something else, please update | |
63 | * the "PDP-11 instruction set extensions" comment in pdp11.h. | |
64 | */ | |
65 | int pdp11_extension[PDP11_EXT_NUM]; | |
66 | ||
67 | /* | |
68 | * Assembly options. | |
69 | */ | |
70 | ||
71 | #define ASM_OPT_PIC 1 | |
72 | #define ASM_OPT_NUM 2 | |
73 | ||
74 | int asm_option[ASM_OPT_NUM]; | |
75 | ||
76 | /* These chars start a comment anywhere in a source file (except inside | |
77 | another comment */ | |
5a38dc70 | 78 | const char comment_chars[] = "#/"; |
e135f41b | 79 | |
5cd4edbe | 80 | /* These chars only start a comment at the beginning of a line. */ |
5a38dc70 | 81 | const char line_comment_chars[] = "#/"; |
e135f41b | 82 | |
5a38dc70 | 83 | const char line_separator_chars[] = ";"; |
e135f41b NC |
84 | |
85 | /* Chars that can be used to separate mant from exp in floating point nums */ | |
5a38dc70 | 86 | const char EXP_CHARS[] = "eE"; |
e135f41b NC |
87 | |
88 | /* Chars that mean this number is a floating point constant */ | |
89 | /* as in 0f123.456 */ | |
90 | /* or 0H1.234E-12 (see exp chars above) */ | |
5a38dc70 | 91 | const char FLT_CHARS[] = "dDfF"; |
e135f41b NC |
92 | |
93 | void pseudo_even (int); | |
94 | void pseudo_bss (int); | |
95 | ||
5a38dc70 | 96 | const pseudo_typeS md_pseudo_table[] = |
e135f41b NC |
97 | { |
98 | { "bss", pseudo_bss, 0 }, | |
99 | { "even", pseudo_even, 0 }, | |
100 | { 0, 0, 0 }, | |
101 | }; | |
102 | ||
e135f41b NC |
103 | static void |
104 | init_defaults () | |
105 | { | |
106 | static int first = 1; | |
107 | ||
108 | if (first) | |
109 | { | |
110 | set_option ("all-extensions"); | |
111 | set_option ("pic"); | |
112 | first = 0; | |
113 | } | |
114 | } | |
115 | ||
116 | static struct hash_control *insn_hash = NULL; | |
117 | ||
118 | void | |
119 | md_begin () | |
120 | { | |
121 | int i; | |
122 | ||
123 | init_defaults (); | |
124 | ||
125 | insn_hash = hash_new (); | |
126 | if (insn_hash == NULL) | |
127 | as_fatal ("Virtual memory exhausted"); | |
5cd4edbe | 128 | |
e135f41b NC |
129 | for (i = 0; i < pdp11_num_opcodes; i++) |
130 | hash_insert (insn_hash, pdp11_opcodes[i].name, (PTR)(pdp11_opcodes + i)); | |
131 | for (i = 0; i < pdp11_num_aliases; i++) | |
132 | hash_insert (insn_hash, pdp11_aliases[i].name, (PTR)(pdp11_aliases + i)); | |
133 | } | |
134 | ||
135 | void | |
136 | md_number_to_chars (con, value, nbytes) | |
137 | char con[]; | |
138 | valueT value; | |
139 | int nbytes; | |
140 | { | |
141 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
142 | * 0x12345678 is stored as "\x56\x78\x12\x34". It's | |
143 | * anyones guess what 0x123456 would be stored like. | |
144 | */ | |
145 | ||
146 | switch (nbytes) | |
147 | { | |
148 | case 0: | |
149 | break; | |
150 | case 1: | |
151 | con[0] = value & 0xff; | |
152 | break; | |
153 | case 2: | |
154 | con[0] = value & 0xff; | |
155 | con[1] = (value >> 8) & 0xff; | |
156 | break; | |
157 | case 4: | |
158 | con[0] = (value >> 16) & 0xff; | |
159 | con[1] = (value >> 24) & 0xff; | |
160 | con[2] = value & 0xff; | |
161 | con[3] = (value >> 8) & 0xff; | |
162 | break; | |
163 | default: | |
164 | BAD_CASE (nbytes); | |
5cd4edbe | 165 | } |
e135f41b NC |
166 | } |
167 | ||
168 | /* Fix up some data or instructions after we find out the value of a symbol | |
94f592af | 169 | that they reference. Knows about order of bytes in address. */ |
e135f41b | 170 | |
94f592af NC |
171 | void |
172 | md_apply_fix3 (fixP, valP, seg) | |
e135f41b | 173 | fixS *fixP; |
94f592af NC |
174 | valueT * valP; |
175 | segT seg ATTRIBUTE_UNUSED; | |
e135f41b NC |
176 | { |
177 | valueT code; | |
178 | valueT mask; | |
94f592af | 179 | valueT val = * valP; |
e135f41b NC |
180 | char *buf; |
181 | int shift; | |
182 | int size; | |
183 | ||
184 | buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
185 | size = fixP->fx_size; | |
186 | code = md_chars_to_number (buf, size); | |
187 | ||
188 | switch (fixP->fx_r_type) | |
189 | { | |
190 | case BFD_RELOC_16: | |
191 | case BFD_RELOC_16_PCREL: | |
192 | mask = 0xffff; | |
193 | shift = 0; | |
194 | break; | |
195 | case BFD_RELOC_PDP11_DISP_8_PCREL: | |
196 | mask = 0x00ff; | |
197 | shift = 1; | |
198 | break; | |
199 | case BFD_RELOC_PDP11_DISP_6_PCREL: | |
200 | mask = 0x003f; | |
201 | shift = 1; | |
14127cc4 | 202 | val = -val; |
e135f41b NC |
203 | break; |
204 | default: | |
205 | BAD_CASE (fixP->fx_r_type); | |
206 | } | |
207 | ||
208 | if (fixP->fx_addsy != NULL) | |
94f592af | 209 | val += symbol_get_bfdsym (fixP->fx_addsy)->section->vma; |
e135f41b NC |
210 | /* *value += fixP->fx_addsy->bsym->section->vma; */ |
211 | ||
212 | code &= ~mask; | |
94f592af | 213 | code |= (val >> shift) & mask; |
e135f41b | 214 | number_to_chars_littleendian (buf, code, size); |
94f592af NC |
215 | |
216 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
217 | fixP->fx_done = 1; | |
e135f41b NC |
218 | } |
219 | ||
220 | long | |
221 | md_chars_to_number (con, nbytes) | |
5cd4edbe KH |
222 | unsigned char con[]; /* Low order byte 1st. */ |
223 | int nbytes; /* Number of bytes in the input. */ | |
e135f41b NC |
224 | { |
225 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
226 | * 0x12345678 is stored as "\x56\x78\x12\x34". It's | |
227 | * anyones guess what 0x123456 would be stored like. | |
228 | */ | |
229 | ||
230 | switch (nbytes) | |
231 | { | |
232 | case 0: | |
233 | return 0; | |
234 | case 1: | |
235 | return con[0]; | |
236 | case 2: | |
237 | return (con[1] << BITS_PER_CHAR) | con[0]; | |
238 | case 4: | |
239 | return | |
240 | (((con[1] << BITS_PER_CHAR) | con[0]) << (2 * BITS_PER_CHAR)) | | |
241 | ((con[3] << BITS_PER_CHAR) | con[2]); | |
242 | default: | |
243 | BAD_CASE (nbytes); | |
244 | return 0; | |
5cd4edbe | 245 | } |
e135f41b NC |
246 | } |
247 | \f | |
248 | static char * | |
249 | skip_whitespace (char *str) | |
250 | { | |
251 | while (*str == ' ' || *str == '\t') | |
252 | str++; | |
253 | return str; | |
254 | } | |
255 | ||
256 | static char * | |
257 | find_whitespace (char *str) | |
258 | { | |
259 | while (*str != ' ' && *str != '\t' && *str != 0) | |
260 | str++; | |
261 | return str; | |
262 | } | |
263 | ||
e135f41b NC |
264 | static char * |
265 | parse_reg (char *str, struct pdp11_code *operand) | |
266 | { | |
267 | str = skip_whitespace (str); | |
3882b010 | 268 | if (TOLOWER (*str) == 'r') |
e135f41b NC |
269 | { |
270 | str++; | |
271 | switch (*str) | |
272 | { | |
273 | case '0': case '1': case '2': case '3': | |
274 | case '4': case '5': case '6': case '7': | |
275 | operand->code = *str - '0'; | |
276 | str++; | |
277 | break; | |
278 | default: | |
279 | operand->error = "Bad register name"; | |
280 | return str - 1; | |
281 | } | |
282 | } | |
283 | else if (strncmp (str, "sp", 2) == 0 || | |
284 | strncmp (str, "SP", 2) == 0) | |
285 | { | |
286 | operand->code = 6; | |
287 | str += 2; | |
288 | } | |
289 | else if (strncmp (str, "pc", 2) == 0 || | |
290 | strncmp (str, "PC", 2) == 0) | |
291 | { | |
292 | operand->code = 7; | |
293 | str += 2; | |
294 | } | |
295 | else | |
296 | { | |
297 | operand->error = "Bad register name"; | |
298 | return str; | |
299 | } | |
300 | ||
301 | return str; | |
302 | } | |
303 | ||
304 | static char * | |
cd3cde86 | 305 | parse_ac5 (char *str, struct pdp11_code *operand) |
e135f41b NC |
306 | { |
307 | str = skip_whitespace (str); | |
308 | if (strncmp (str, "fr", 2) == 0 || | |
309 | strncmp (str, "FR", 2) == 0 || | |
310 | strncmp (str, "ac", 2) == 0 || | |
311 | strncmp (str, "AC", 2) == 0) | |
312 | { | |
313 | str += 2; | |
314 | switch (*str) | |
315 | { | |
316 | case '0': case '1': case '2': case '3': | |
cd3cde86 | 317 | case '4': case '5': |
e135f41b NC |
318 | operand->code = *str - '0'; |
319 | str++; | |
320 | break; | |
321 | default: | |
322 | operand->error = "Bad register name"; | |
323 | return str - 2; | |
324 | } | |
325 | } | |
326 | else | |
327 | { | |
328 | operand->error = "Bad register name"; | |
329 | return str; | |
330 | } | |
331 | ||
332 | return str; | |
333 | } | |
334 | ||
cd3cde86 AM |
335 | static char * |
336 | parse_ac (char *str, struct pdp11_code *operand) | |
337 | { | |
338 | str = parse_ac5 (str, operand); | |
339 | if (!operand->error && operand->code > 3) | |
340 | { | |
341 | operand->error = "Bad register name"; | |
342 | return str - 3; | |
343 | } | |
344 | ||
345 | return str; | |
346 | } | |
347 | ||
e135f41b NC |
348 | static char * |
349 | parse_expression (char *str, struct pdp11_code *operand) | |
350 | { | |
351 | char *save_input_line_pointer; | |
352 | segT seg; | |
353 | ||
354 | save_input_line_pointer = input_line_pointer; | |
355 | input_line_pointer = str; | |
356 | seg = expression (&operand->reloc.exp); | |
357 | if (seg == NULL) | |
358 | { | |
359 | input_line_pointer = save_input_line_pointer; | |
360 | operand->error = "Error in expression"; | |
361 | return str; | |
362 | } | |
363 | ||
364 | str = input_line_pointer; | |
365 | input_line_pointer = save_input_line_pointer; | |
366 | ||
367 | operand->reloc.pc_rel = 0; | |
368 | ||
e135f41b NC |
369 | return str; |
370 | } | |
371 | ||
372 | static char * | |
373 | parse_op_no_deferred (char *str, struct pdp11_code *operand) | |
374 | { | |
cd3cde86 AM |
375 | LITTLENUM_TYPE literal_float[2]; |
376 | ||
e135f41b NC |
377 | str = skip_whitespace (str); |
378 | ||
379 | switch (*str) | |
380 | { | |
381 | case '(': /* (rn) and (rn)+ */ | |
382 | str = parse_reg (str + 1, operand); | |
383 | if (operand->error) | |
384 | return str; | |
385 | str = skip_whitespace (str); | |
386 | if (*str != ')') | |
387 | { | |
388 | operand->error = "Missing ')'"; | |
389 | return str; | |
390 | } | |
391 | str++; | |
392 | if (*str == '+') | |
393 | { | |
394 | operand->code |= 020; | |
395 | str++; | |
396 | } | |
397 | else | |
398 | { | |
399 | operand->code |= 010; | |
400 | } | |
401 | break; | |
402 | ||
403 | case '#': /* immediate */ | |
5cd4edbe | 404 | case '$': |
e135f41b NC |
405 | str = parse_expression (str + 1, operand); |
406 | if (operand->error) | |
407 | return str; | |
408 | operand->additional = TRUE; | |
409 | operand->word = operand->reloc.exp.X_add_number; | |
410 | switch (operand->reloc.exp.X_op) | |
411 | { | |
412 | case O_constant: | |
413 | break; | |
414 | case O_symbol: | |
415 | case O_add: | |
416 | case O_subtract: | |
417 | operand->reloc.type = BFD_RELOC_16; | |
418 | operand->reloc.pc_rel = 0; | |
419 | break; | |
cd3cde86 AM |
420 | case O_big: |
421 | if (operand->reloc.exp.X_add_number > 0) | |
422 | { | |
423 | operand->error = "Error in expression"; | |
424 | break; | |
425 | } | |
5d6255fe | 426 | /* it's a floating literal... */ |
cd3cde86 AM |
427 | know (operand->reloc.exp.X_add_number < 0); |
428 | flonum_gen2vax ('f', &generic_floating_point_number, literal_float); | |
429 | operand->word = literal_float[0]; | |
430 | if (literal_float[1] != 0) | |
431 | as_warn (_("Low order bits truncated in immediate float operand")); | |
432 | break; | |
e135f41b NC |
433 | default: |
434 | operand->error = "Error in expression"; | |
435 | break; | |
436 | } | |
437 | operand->code = 027; | |
438 | break; | |
439 | ||
440 | default: /* label, d(rn), -(rn) */ | |
441 | { | |
442 | char *old = str; | |
443 | ||
444 | if (strncmp (str, "-(", 2) == 0) /* -(rn) */ | |
445 | { | |
446 | str = parse_reg (str + 2, operand); | |
447 | if (operand->error) | |
448 | return str; | |
449 | str = skip_whitespace (str); | |
450 | if (*str != ')') | |
451 | { | |
452 | operand->error = "Missing ')'"; | |
453 | return str; | |
454 | } | |
455 | operand->code |= 040; | |
456 | str++; | |
457 | break; | |
458 | } | |
459 | ||
460 | str = parse_expression (str, operand); | |
461 | if (operand->error) | |
462 | return str; | |
463 | ||
464 | str = skip_whitespace (str); | |
465 | ||
466 | if (*str != '(') /* label */ | |
467 | { | |
468 | if (operand->reloc.exp.X_op != O_symbol) | |
469 | { | |
470 | operand->error = "Label expected"; | |
471 | return old; | |
472 | } | |
473 | operand->code = 067; | |
474 | operand->additional = 1; | |
475 | operand->word = 0; | |
476 | operand->reloc.type = BFD_RELOC_16_PCREL; | |
477 | operand->reloc.pc_rel = 1; | |
478 | break; | |
479 | } | |
480 | ||
481 | str++; /* d(rn) */ | |
482 | str = parse_reg (str, operand); | |
483 | if (operand->error) | |
484 | return str; | |
485 | ||
486 | str = skip_whitespace (str); | |
487 | ||
488 | if (*str != ')') | |
489 | { | |
490 | operand->error = "Missing ')'"; | |
491 | return str; | |
492 | } | |
493 | ||
494 | str++; | |
495 | operand->additional = TRUE; | |
496 | operand->code |= 060; | |
497 | switch (operand->reloc.exp.X_op) | |
498 | { | |
499 | case O_symbol: | |
500 | operand->word = 0; | |
501 | operand->reloc.pc_rel = 1; | |
502 | break; | |
503 | case O_constant: | |
504 | if ((operand->code & 7) == 7) | |
505 | { | |
506 | operand->reloc.pc_rel = 1; | |
507 | operand->word = operand->reloc.exp.X_add_number; | |
508 | } | |
509 | else | |
510 | { | |
511 | operand->word = operand->reloc.exp.X_add_number; | |
512 | } | |
513 | break; | |
514 | default: | |
515 | BAD_CASE (operand->reloc.exp.X_op); | |
516 | } | |
517 | break; | |
518 | } | |
519 | } | |
520 | ||
521 | return str; | |
522 | } | |
523 | ||
524 | static char * | |
cd3cde86 | 525 | parse_op_noreg (char *str, struct pdp11_code *operand) |
e135f41b NC |
526 | { |
527 | str = skip_whitespace (str); | |
e135f41b NC |
528 | operand->error = NULL; |
529 | ||
530 | if (*str == '@' || *str == '*') | |
531 | { | |
532 | str = parse_op_no_deferred (str + 1, operand); | |
533 | if (operand->error) | |
534 | return str; | |
535 | operand->code |= 010; | |
536 | } | |
537 | else | |
538 | str = parse_op_no_deferred (str, operand); | |
539 | ||
540 | return str; | |
541 | } | |
542 | ||
cd3cde86 AM |
543 | static char * |
544 | parse_op (char *str, struct pdp11_code *operand) | |
545 | { | |
546 | str = skip_whitespace (str); | |
547 | ||
548 | str = parse_reg (str, operand); | |
549 | if (!operand->error) | |
550 | return str; | |
551 | ||
552 | operand->error = NULL; | |
553 | parse_ac5 (str, operand); | |
554 | if (!operand->error) | |
555 | { | |
556 | operand->error = "Float AC not legal as integer operand"; | |
557 | return str; | |
558 | } | |
5d6255fe | 559 | |
cd3cde86 AM |
560 | return parse_op_noreg (str, operand); |
561 | } | |
562 | ||
563 | static char * | |
564 | parse_fop (char *str, struct pdp11_code *operand) | |
565 | { | |
566 | str = skip_whitespace (str); | |
567 | ||
568 | str = parse_ac5 (str, operand); | |
569 | if (!operand->error) | |
570 | return str; | |
571 | ||
572 | operand->error = NULL; | |
573 | parse_reg (str, operand); | |
574 | if (!operand->error) | |
575 | { | |
576 | operand->error = "General register not legal as float operand"; | |
577 | return str; | |
578 | } | |
579 | ||
580 | return parse_op_noreg (str, operand); | |
581 | } | |
582 | ||
e135f41b NC |
583 | static char * |
584 | parse_separator (char *str, int *error) | |
585 | { | |
586 | str = skip_whitespace (str); | |
587 | *error = (*str != ','); | |
588 | if (!*error) | |
589 | str++; | |
590 | return str; | |
591 | } | |
592 | ||
593 | void | |
594 | md_assemble (instruction_string) | |
595 | char *instruction_string; | |
596 | { | |
5a38dc70 | 597 | const struct pdp11_opcode *op; |
e135f41b NC |
598 | struct pdp11_code insn, op1, op2; |
599 | int error; | |
600 | int size; | |
601 | char *err = NULL; | |
602 | char *str; | |
603 | char *p; | |
604 | char c; | |
605 | ||
606 | str = skip_whitespace (instruction_string); | |
607 | p = find_whitespace (str); | |
608 | if (p - str == 0) | |
609 | { | |
610 | as_bad ("No instruction found"); | |
611 | return; | |
612 | } | |
613 | ||
614 | c = *p; | |
615 | *p = '\0'; | |
616 | op = (struct pdp11_opcode *)hash_find (insn_hash, str); | |
617 | *p = c; | |
618 | if (op == 0) | |
619 | { | |
cd3cde86 | 620 | as_bad (_("Unknown instruction '%s'"), str); |
e135f41b NC |
621 | return; |
622 | } | |
623 | ||
624 | if (!pdp11_extension[op->extension]) | |
625 | { | |
626 | as_warn ("Unsupported instruction set extension: %s", op->name); | |
627 | return; | |
628 | } | |
629 | ||
630 | insn.error = NULL; | |
631 | insn.code = op->opcode; | |
632 | insn.reloc.type = BFD_RELOC_NONE; | |
633 | op1.error = NULL; | |
634 | op1.additional = FALSE; | |
635 | op1.reloc.type = BFD_RELOC_NONE; | |
636 | op2.error = NULL; | |
637 | op2.additional = FALSE; | |
638 | op2.reloc.type = BFD_RELOC_NONE; | |
639 | ||
640 | str = p; | |
641 | size = 2; | |
642 | ||
643 | switch (op->type) | |
644 | { | |
645 | case PDP11_OPCODE_NO_OPS: | |
646 | str = skip_whitespace (str); | |
647 | if (*str == 0) | |
648 | str = ""; | |
649 | break; | |
650 | ||
651 | case PDP11_OPCODE_IMM3: | |
652 | case PDP11_OPCODE_IMM6: | |
653 | case PDP11_OPCODE_IMM8: | |
654 | str = skip_whitespace (str); | |
655 | if (*str == '#' || *str == '$') | |
656 | str++; | |
657 | str = parse_expression (str, &op1); | |
658 | if (op1.error) | |
659 | break; | |
cd3cde86 AM |
660 | if (op1.reloc.exp.X_op != O_constant || op1.reloc.type != BFD_RELOC_NONE) |
661 | { | |
662 | op1.error = "operand is not an absolute constant"; | |
663 | break; | |
664 | } | |
e135f41b NC |
665 | switch (op->type) |
666 | { | |
667 | case PDP11_OPCODE_IMM3: | |
cd3cde86 | 668 | if (op1.reloc.exp.X_add_number & ~7) |
e135f41b NC |
669 | { |
670 | op1.error = "3-bit immediate out of range"; | |
671 | break; | |
672 | } | |
673 | break; | |
674 | case PDP11_OPCODE_IMM6: | |
cd3cde86 | 675 | if (op1.reloc.exp.X_add_number & ~0x3f) |
e135f41b NC |
676 | { |
677 | op1.error = "6-bit immediate out of range"; | |
678 | break; | |
679 | } | |
680 | break; | |
681 | case PDP11_OPCODE_IMM8: | |
cd3cde86 | 682 | if (op1.reloc.exp.X_add_number & ~0xff) |
e135f41b NC |
683 | { |
684 | op1.error = "8-bit immediate out of range"; | |
685 | break; | |
686 | } | |
687 | break; | |
688 | } | |
cd3cde86 | 689 | insn.code |= op1.reloc.exp.X_add_number; |
e135f41b NC |
690 | break; |
691 | ||
692 | case PDP11_OPCODE_DISPL: | |
693 | { | |
694 | char *new; | |
695 | new = parse_expression (str, &op1); | |
696 | op1.code = 0; | |
697 | op1.reloc.pc_rel = 1; | |
698 | op1.reloc.type = BFD_RELOC_PDP11_DISP_8_PCREL; | |
699 | if (op1.reloc.exp.X_op != O_symbol) | |
700 | { | |
701 | op1.error = "Symbol expected"; | |
702 | break; | |
703 | } | |
704 | if (op1.code & ~0xff) | |
705 | { | |
706 | err = "8-bit displacement out of range"; | |
707 | break; | |
708 | } | |
709 | str = new; | |
710 | insn.code |= op1.code; | |
711 | insn.reloc = op1.reloc; | |
712 | } | |
713 | break; | |
714 | ||
715 | case PDP11_OPCODE_REG: | |
716 | str = parse_reg (str, &op1); | |
717 | if (op1.error) | |
718 | break; | |
719 | insn.code |= op1.code; | |
720 | break; | |
721 | ||
722 | case PDP11_OPCODE_OP: | |
723 | str = parse_op (str, &op1); | |
724 | if (op1.error) | |
725 | break; | |
726 | insn.code |= op1.code; | |
727 | if (op1.additional) | |
728 | size += 2; | |
729 | break; | |
730 | ||
cd3cde86 AM |
731 | case PDP11_OPCODE_FOP: |
732 | str = parse_fop (str, &op1); | |
733 | if (op1.error) | |
734 | break; | |
735 | insn.code |= op1.code; | |
736 | if (op1.additional) | |
737 | size += 2; | |
738 | break; | |
739 | ||
e135f41b NC |
740 | case PDP11_OPCODE_REG_OP: |
741 | str = parse_reg (str, &op2); | |
742 | if (op2.error) | |
743 | break; | |
744 | insn.code |= op2.code << 6; | |
745 | str = parse_separator (str, &error); | |
746 | if (error) | |
747 | { | |
748 | op2.error = "Missing ','"; | |
749 | break; | |
750 | } | |
751 | str = parse_op (str, &op1); | |
752 | if (op1.error) | |
753 | break; | |
754 | insn.code |= op1.code; | |
755 | if (op1.additional) | |
756 | size += 2; | |
757 | break; | |
758 | ||
759 | case PDP11_OPCODE_REG_OP_REV: | |
760 | str = parse_op (str, &op1); | |
761 | if (op1.error) | |
762 | break; | |
763 | insn.code |= op1.code; | |
764 | if (op1.additional) | |
765 | size += 2; | |
766 | str = parse_separator (str, &error); | |
767 | if (error) | |
768 | { | |
769 | op2.error = "Missing ','"; | |
770 | break; | |
771 | } | |
772 | str = parse_reg (str, &op2); | |
773 | if (op2.error) | |
774 | break; | |
775 | insn.code |= op2.code << 6; | |
776 | break; | |
777 | ||
cd3cde86 AM |
778 | case PDP11_OPCODE_AC_FOP: |
779 | str = parse_ac (str, &op2); | |
780 | if (op2.error) | |
781 | break; | |
782 | insn.code |= op2.code << 6; | |
783 | str = parse_separator (str, &error); | |
784 | if (error) | |
785 | { | |
786 | op1.error = "Missing ','"; | |
787 | break; | |
788 | } | |
789 | str = parse_fop (str, &op1); | |
790 | if (op1.error) | |
791 | break; | |
792 | insn.code |= op1.code; | |
793 | if (op1.additional) | |
794 | size += 2; | |
795 | break; | |
796 | ||
797 | case PDP11_OPCODE_FOP_AC: | |
798 | str = parse_fop (str, &op1); | |
799 | if (op1.error) | |
800 | break; | |
801 | insn.code |= op1.code; | |
802 | if (op1.additional) | |
803 | size += 2; | |
804 | str = parse_separator (str, &error); | |
805 | if (error) | |
806 | { | |
807 | op1.error = "Missing ','"; | |
808 | break; | |
809 | } | |
810 | str = parse_ac (str, &op2); | |
811 | if (op2.error) | |
812 | break; | |
813 | insn.code |= op2.code << 6; | |
814 | break; | |
815 | ||
e135f41b NC |
816 | case PDP11_OPCODE_AC_OP: |
817 | str = parse_ac (str, &op2); | |
818 | if (op2.error) | |
819 | break; | |
820 | insn.code |= op2.code << 6; | |
821 | str = parse_separator (str, &error); | |
822 | if (error) | |
823 | { | |
824 | op1.error = "Missing ','"; | |
825 | break; | |
826 | } | |
827 | str = parse_op (str, &op1); | |
828 | if (op1.error) | |
829 | break; | |
830 | insn.code |= op1.code; | |
831 | if (op1.additional) | |
832 | size += 2; | |
833 | break; | |
834 | ||
cd3cde86 AM |
835 | case PDP11_OPCODE_OP_AC: |
836 | str = parse_op (str, &op1); | |
837 | if (op1.error) | |
838 | break; | |
839 | insn.code |= op1.code; | |
840 | if (op1.additional) | |
841 | size += 2; | |
842 | str = parse_separator (str, &error); | |
843 | if (error) | |
844 | { | |
845 | op1.error = "Missing ','"; | |
846 | break; | |
847 | } | |
848 | str = parse_ac (str, &op2); | |
849 | if (op2.error) | |
850 | break; | |
851 | insn.code |= op2.code << 6; | |
852 | break; | |
853 | ||
e135f41b NC |
854 | case PDP11_OPCODE_OP_OP: |
855 | str = parse_op (str, &op1); | |
856 | if (op1.error) | |
857 | break; | |
858 | insn.code |= op1.code << 6; | |
859 | if (op1.additional) | |
860 | size += 2; | |
861 | str = parse_separator (str, &error); | |
862 | if (error) | |
863 | { | |
864 | op2.error = "Missing ','"; | |
865 | break; | |
866 | } | |
867 | str = parse_op (str, &op2); | |
868 | if (op2.error) | |
869 | break; | |
870 | insn.code |= op2.code; | |
871 | if (op2.additional) | |
872 | size += 2; | |
873 | break; | |
874 | ||
875 | case PDP11_OPCODE_REG_DISPL: | |
876 | { | |
877 | char *new; | |
878 | str = parse_reg (str, &op2); | |
879 | if (op2.error) | |
880 | break; | |
881 | insn.code |= op2.code << 6; | |
882 | str = parse_separator (str, &error); | |
883 | if (error) | |
884 | { | |
885 | op1.error = "Missing ','"; | |
886 | break; | |
887 | } | |
888 | new = parse_expression (str, &op1); | |
889 | op1.code = 0; | |
890 | op1.reloc.pc_rel = 1; | |
891 | op1.reloc.type = BFD_RELOC_PDP11_DISP_6_PCREL; | |
892 | if (op1.reloc.exp.X_op != O_symbol) | |
893 | { | |
894 | op1.error = "Symbol expected"; | |
895 | break; | |
896 | } | |
897 | if (op1.code & ~0x3f) | |
898 | { | |
899 | err = "6-bit displacement out of range"; | |
900 | break; | |
901 | } | |
902 | str = new; | |
903 | insn.code |= op1.code; | |
904 | insn.reloc = op1.reloc; | |
905 | } | |
906 | break; | |
5cd4edbe | 907 | |
e135f41b NC |
908 | default: |
909 | BAD_CASE (op->type); | |
910 | } | |
911 | ||
912 | if (op1.error) | |
913 | err = op1.error; | |
914 | else if (op2.error) | |
915 | err = op2.error; | |
916 | else | |
917 | { | |
918 | str = skip_whitespace (str); | |
919 | if (*str) | |
920 | err = "Too many operands"; | |
921 | } | |
922 | ||
923 | { | |
924 | char *to = NULL; | |
5cd4edbe | 925 | |
e135f41b NC |
926 | if (err) |
927 | { | |
928 | as_bad (err); | |
929 | return; | |
930 | } | |
931 | ||
932 | to = frag_more (size); | |
933 | ||
934 | md_number_to_chars (to, insn.code, 2); | |
935 | if (insn.reloc.type != BFD_RELOC_NONE) | |
936 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
937 | &insn.reloc.exp, insn.reloc.pc_rel, insn.reloc.type); | |
938 | to += 2; | |
939 | ||
940 | if (op1.additional) | |
941 | { | |
942 | md_number_to_chars (to, op1.word, 2); | |
943 | if (op1.reloc.type != BFD_RELOC_NONE) | |
944 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
945 | &op1.reloc.exp, op1.reloc.pc_rel, op1.reloc.type); | |
946 | to += 2; | |
947 | } | |
948 | ||
949 | if (op2.additional) | |
950 | { | |
951 | md_number_to_chars (to, op2.word, 2); | |
952 | if (op2.reloc.type != BFD_RELOC_NONE) | |
953 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
954 | &op2.reloc.exp, op2.reloc.pc_rel, op2.reloc.type); | |
955 | } | |
956 | } | |
957 | } | |
958 | ||
959 | int | |
960 | md_estimate_size_before_relax (fragP, segment) | |
961 | fragS *fragP ATTRIBUTE_UNUSED; | |
962 | segT segment ATTRIBUTE_UNUSED; | |
963 | { | |
964 | return 0; | |
965 | } | |
966 | ||
967 | void | |
968 | md_convert_frag (headers, seg, fragP) | |
969 | bfd *headers ATTRIBUTE_UNUSED; | |
970 | segT seg ATTRIBUTE_UNUSED; | |
971 | fragS *fragP ATTRIBUTE_UNUSED; | |
972 | { | |
973 | } | |
974 | ||
2b4f075a HPN |
975 | int md_short_jump_size = 2; |
976 | int md_long_jump_size = 4; | |
e135f41b NC |
977 | |
978 | void | |
979 | md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
980 | char *ptr ATTRIBUTE_UNUSED; | |
981 | addressT from_addr ATTRIBUTE_UNUSED; | |
982 | addressT to_addr ATTRIBUTE_UNUSED; | |
983 | fragS *frag ATTRIBUTE_UNUSED; | |
984 | symbolS *to_symbol ATTRIBUTE_UNUSED; | |
985 | { | |
986 | } | |
987 | ||
988 | void | |
989 | md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol) | |
990 | char *ptr ATTRIBUTE_UNUSED; | |
991 | addressT from_addr ATTRIBUTE_UNUSED; | |
992 | addressT to_addr ATTRIBUTE_UNUSED; | |
993 | fragS *frag ATTRIBUTE_UNUSED; | |
994 | symbolS *to_symbol ATTRIBUTE_UNUSED; | |
995 | { | |
996 | } | |
997 | ||
998 | static int | |
999 | set_option (arg) | |
1000 | char *arg; | |
1001 | { | |
1002 | int yes = 1; | |
1003 | ||
1004 | if (strcmp (arg, "all-extensions") == 0 || | |
1005 | strcmp (arg, "all") == 0) | |
1006 | { | |
1007 | memset (pdp11_extension, ~0, sizeof pdp11_extension); | |
1008 | pdp11_extension[PDP11_NONE] = 0; | |
1009 | return 1; | |
1010 | } | |
1011 | else if (strcmp (arg, "no-extensions") == 0) | |
1012 | { | |
1013 | memset (pdp11_extension, 0, sizeof pdp11_extension); | |
1014 | pdp11_extension[PDP11_BASIC] = 1; | |
1015 | return 1; | |
1016 | } | |
1017 | ||
1018 | if (strncmp (arg, "no-", 3) == 0) | |
1019 | { | |
1020 | yes = 0; | |
1021 | arg += 3; | |
1022 | } | |
1023 | ||
1024 | if (strcmp (arg, "cis") == 0) /* commersial instructions */ | |
1025 | pdp11_extension[PDP11_CIS] = yes; | |
1026 | else if (strcmp (arg, "csm") == 0) /* call supervisor mode */ | |
1027 | pdp11_extension[PDP11_CSM] = yes; | |
1028 | else if (strcmp (arg, "eis") == 0) /* extended instruction set */ | |
1029 | pdp11_extension[PDP11_EIS] = pdp11_extension[PDP11_LEIS] = yes; | |
1030 | else if (strcmp (arg, "fis") == 0 || /* KEV11 floating-point */ | |
1031 | strcmp (arg, "kev11") == 0 || | |
1032 | strcmp (arg, "kev-11") == 0) | |
1033 | pdp11_extension[PDP11_FIS] = yes; | |
1034 | else if (strcmp (arg, "fpp") == 0 || /* FP-11 floating-point */ | |
1035 | strcmp (arg, "fpu") == 0 || | |
1036 | strcmp (arg, "fp11") == 0 || | |
1037 | strcmp (arg, "fp-11") == 0 || | |
1038 | strcmp (arg, "fpj11") == 0 || | |
1039 | strcmp (arg, "fp-j11") == 0 || | |
1040 | strcmp (arg, "fpj-11") == 0) | |
1041 | pdp11_extension[PDP11_FPP] = yes; | |
1042 | else if (strcmp (arg, "limited-eis") == 0) /* limited extended insns */ | |
1043 | { | |
1044 | pdp11_extension[PDP11_LEIS] = yes; | |
1045 | if (!pdp11_extension[PDP11_LEIS]) | |
1046 | pdp11_extension[PDP11_EIS] = 0; | |
1047 | } | |
1048 | else if (strcmp (arg, "mfpt") == 0) /* move from processor type */ | |
1049 | pdp11_extension[PDP11_MFPT] = yes; | |
1050 | else if (strncmp (arg, "mproc", 5) == 0 || /* multiprocessor insns: */ | |
1051 | strncmp (arg, "multiproc", 9) == 0 ) /* TSTSET, WRTLCK */ | |
5cd4edbe | 1052 | pdp11_extension[PDP11_MPROC] = yes; |
e135f41b NC |
1053 | else if (strcmp (arg, "mxps") == 0) /* move from/to proc status */ |
1054 | pdp11_extension[PDP11_MXPS] = yes; | |
1055 | else if (strcmp (arg, "pic") == 0) /* position-independent code */ | |
1056 | asm_option[ASM_OPT_PIC] = yes; | |
1057 | else if (strcmp (arg, "spl") == 0) /* set priority level */ | |
1058 | pdp11_extension[PDP11_SPL] = yes; | |
1059 | else if (strcmp (arg, "ucode") == 0 || /* microcode instructions: */ | |
1060 | strcmp (arg, "microcode") == 0) /* LDUB, MED, XFC */ | |
1061 | pdp11_extension[PDP11_UCODE] = yes; | |
1062 | else | |
1063 | return 0; | |
1064 | ||
1065 | return 1; | |
1066 | } | |
1067 | ||
1068 | static int | |
1069 | set_cpu_model (arg) | |
1070 | char *arg; | |
1071 | { | |
1072 | char buf[4]; | |
1073 | char *model = buf; | |
1074 | ||
1075 | if (arg[0] == 'k') | |
1076 | arg++; | |
1077 | ||
1078 | *model++ = *arg++; | |
1079 | ||
1080 | if (strchr ("abdx", model[-1]) == NULL) | |
1081 | return 0; | |
1082 | ||
1083 | if (model[-1] == 'd') | |
1084 | { | |
1085 | if (arg[0] == 'f' || | |
1086 | arg[0] == 'j') | |
1087 | model[-1] = *arg++; | |
1088 | } | |
1089 | else if (model[-1] == 'x') | |
1090 | { | |
1091 | if (arg[0] == 't') | |
1092 | model[-1] = *arg++; | |
1093 | } | |
1094 | ||
1095 | if (arg[0] == '-') | |
1096 | arg++; | |
1097 | ||
1098 | if (strncmp (arg, "11", 2) != 0) | |
1099 | return 0; | |
1100 | arg += 2; | |
1101 | ||
1102 | if (arg[0] == '-') | |
1103 | { | |
1104 | if (*++arg == 0) | |
1105 | return 0; | |
1106 | } | |
1107 | ||
1108 | /* allow up to two revision letters */ | |
1109 | if (arg[0] != 0) | |
1110 | *model++ = *arg++; | |
1111 | if (arg[0] != 0) | |
1112 | *model++ = *arg++; | |
1113 | ||
1114 | *model++ = 0; | |
1115 | ||
1116 | set_option ("no-extensions"); | |
1117 | ||
1118 | if (strncmp (buf, "a", 1) == 0) /* KA11 (11/15/20) */ | |
1119 | return 1; /* no extensions */ | |
1120 | ||
1121 | else if (strncmp (buf, "b", 1) == 0) /* KB11 (11/45/50/55/70) */ | |
1122 | return set_option ("eis") && | |
1123 | set_option ("spl"); | |
1124 | ||
1125 | else if (strncmp (buf, "da", 2) == 0) /* KD11-A (11/35/40) */ | |
1126 | return set_option ("limited-eis"); | |
1127 | ||
1128 | else if (strncmp (buf, "db", 2) == 0 || /* KD11-B (11/05/10) */ | |
1129 | strncmp (buf, "dd", 2) == 0) /* KD11-D (11/04) */ | |
1130 | return 1; /* no extensions */ | |
1131 | ||
1132 | else if (strncmp (buf, "de", 2) == 0) /* KD11-E (11/34) */ | |
1133 | return set_option ("eis") && | |
1134 | set_option ("mxps"); | |
1135 | ||
1136 | else if (strncmp (buf, "df", 2) == 0 || /* KD11-F (11/03) */ | |
1137 | strncmp (buf, "dh", 2) == 0 || /* KD11-H (11/03) */ | |
1138 | strncmp (buf, "dq", 2) == 0) /* KD11-Q (11/03) */ | |
1139 | return set_option ("limited-eis") && | |
1140 | set_option ("mxps"); | |
1141 | ||
1142 | else if (strncmp (buf, "dk", 2) == 0) /* KD11-K (11/60) */ | |
1143 | return set_option ("eis") && | |
1144 | set_option ("mxps") && | |
1145 | set_option ("ucode"); | |
1146 | ||
1147 | else if (strncmp (buf, "dz", 2) == 0) /* KD11-Z (11/44) */ | |
1148 | return set_option ("csm") && | |
1149 | set_option ("eis") && | |
1150 | set_option ("mfpt") && | |
1151 | set_option ("mxps") && | |
1152 | set_option ("spl"); | |
1153 | ||
1154 | else if (strncmp (buf, "f", 1) == 0) /* F11 (11/23/24) */ | |
1155 | return set_option ("eis") && | |
1156 | set_option ("mfpt") && | |
1157 | set_option ("mxps"); | |
1158 | ||
1159 | else if (strncmp (buf, "j", 1) == 0) /* J11 (11/53/73/83/84/93/94)*/ | |
1160 | return set_option ("csm") && | |
1161 | set_option ("eis") && | |
1162 | set_option ("mfpt") && | |
1163 | set_option ("multiproc") && | |
1164 | set_option ("mxps") && | |
1165 | set_option ("spl"); | |
1166 | ||
1167 | else if (strncmp (buf, "t", 1) == 0) /* T11 (11/21) */ | |
1168 | return set_option ("limited-eis") && | |
1169 | set_option ("mxps"); | |
1170 | ||
1171 | else | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | static int | |
1176 | set_machine_model (arg) | |
1177 | char *arg; | |
1178 | { | |
1179 | if (strncmp (arg, "pdp-11/", 7) != 0 && | |
1180 | strncmp (arg, "pdp11/", 6) != 0 && | |
1181 | strncmp (arg, "11/", 3) != 0) | |
1182 | return 0; | |
1183 | ||
1184 | if (strncmp (arg, "pdp", 3) == 0) | |
1185 | arg += 3; | |
1186 | if (arg[0] == '-') | |
1187 | arg++; | |
1188 | if (strncmp (arg, "11/", 3) == 0) | |
1189 | arg += 3; | |
1190 | ||
1191 | if (strcmp (arg, "03") == 0) /* 11/03 */ | |
1192 | return set_cpu_model ("kd11f"); /* KD11-F */ | |
1193 | ||
1194 | else if (strcmp (arg, "04") == 0) /* 11/04 */ | |
1195 | return set_cpu_model ("kd11d"); /* KD11-D */ | |
1196 | ||
1197 | else if (strcmp (arg, "05") == 0 || /* 11/05 or 11/10 */ | |
1198 | strcmp (arg, "10") == 0) | |
1199 | return set_cpu_model ("kd11b"); /* KD11-B */ | |
1200 | ||
1201 | else if (strcmp (arg, "15") == 0 || /* 11/15 or 11/20 */ | |
1202 | strcmp (arg, "20") == 0) | |
1203 | return set_cpu_model ("ka11"); /* KA11 */ | |
1204 | ||
1205 | else if (strcmp (arg, "21") == 0) /* 11/21 */ | |
1206 | return set_cpu_model ("t11"); /* T11 */ | |
1207 | ||
1208 | else if (strcmp (arg, "23") == 0 || /* 11/23 or 11/24 */ | |
1209 | strcmp (arg, "24") == 0) | |
1210 | return set_cpu_model ("f11"); /* F11 */ | |
1211 | ||
1212 | else if (strcmp (arg, "34") == 0 || /* 11/34 or 11/34a */ | |
1213 | strcmp (arg, "34a") == 0) | |
1214 | return set_cpu_model ("kd11e"); /* KD11-E */ | |
1215 | ||
1216 | else if (strcmp (arg, "35") == 0 || /* 11/35 or 11/40 */ | |
1217 | strcmp (arg, "40") == 0) | |
1218 | return set_cpu_model ("kd11da"); /* KD11-A */ | |
1219 | ||
1220 | else if (strcmp (arg, "44") == 0) /* 11/44 */ | |
1221 | return set_cpu_model ("kd11dz"); /* KD11-Z */ | |
1222 | ||
1223 | else if (strcmp (arg, "45") == 0 || /* 11/45/50/55/70 */ | |
1224 | strcmp (arg, "50") == 0 || | |
1225 | strcmp (arg, "55") == 0 || | |
1226 | strcmp (arg, "70") == 0) | |
1227 | return set_cpu_model ("kb11"); /* KB11 */ | |
1228 | ||
1229 | else if (strcmp (arg, "60") == 0) /* 11/60 */ | |
1230 | return set_cpu_model ("kd11k"); /* KD11-K */ /* FPP? */ | |
1231 | ||
1232 | else if (strcmp (arg, "53") == 0 || /* 11/53/73/83/84/93/94 */ | |
1233 | strcmp (arg, "73") == 0 || | |
1234 | strcmp (arg, "83") == 0 || | |
1235 | strcmp (arg, "84") == 0 || | |
1236 | strcmp (arg, "93") == 0 || | |
1237 | strcmp (arg, "94") == 0) | |
1238 | return set_cpu_model ("j11") && /* J11 */ | |
1239 | set_option ("fpp"); /* All J11 machines come */ | |
5cd4edbe | 1240 | /* with FPP installed. */ |
e135f41b NC |
1241 | else |
1242 | return 0; | |
1243 | } | |
1244 | ||
5a38dc70 | 1245 | const char *md_shortopts = "m:"; |
e135f41b NC |
1246 | |
1247 | struct option md_longopts[] = | |
1248 | { | |
1249 | #define OPTION_CPU 257 | |
1250 | { "cpu", required_argument, NULL, OPTION_CPU }, | |
1251 | #define OPTION_MACHINE 258 | |
1252 | { "machine", required_argument, NULL, OPTION_MACHINE }, | |
1253 | #define OPTION_PIC 259 | |
1254 | { "pic", no_argument, NULL, OPTION_PIC }, | |
1255 | { NULL, no_argument, NULL, 0 } | |
1256 | }; | |
1257 | ||
07726851 | 1258 | size_t md_longopts_size = sizeof (md_longopts); |
e135f41b NC |
1259 | |
1260 | /* | |
1261 | * md_parse_option | |
1262 | * Invocation line includes a switch not recognized by the base assembler. | |
1263 | * See if it's a processor-specific option. | |
1264 | */ | |
1265 | ||
1266 | int | |
1267 | md_parse_option (c, arg) | |
1268 | int c; | |
1269 | char *arg; | |
1270 | { | |
1271 | init_defaults (); | |
1272 | ||
1273 | switch (c) | |
1274 | { | |
1275 | case 'm': | |
1276 | if (set_option (arg)) | |
1277 | return 1; | |
1278 | if (set_cpu_model (arg)) | |
1279 | return 1; | |
1280 | if (set_machine_model (arg)) | |
1281 | return 1; | |
1282 | break; | |
1283 | ||
1284 | case OPTION_CPU: | |
1285 | if (set_cpu_model (arg)) | |
1286 | return 1; | |
1287 | break; | |
1288 | ||
1289 | case OPTION_MACHINE: | |
1290 | if (set_machine_model (arg)) | |
1291 | return 1; | |
1292 | break; | |
1293 | ||
1294 | case OPTION_PIC: | |
1295 | if (set_option ("pic")) | |
1296 | return 1; | |
1297 | break; | |
1298 | ||
1299 | default: | |
1300 | break; | |
1301 | } | |
1302 | ||
e135f41b NC |
1303 | return 0; |
1304 | } | |
1305 | ||
1306 | /* | |
1307 | One possible way of parsing options. | |
1308 | ||
1309 | enum | |
1310 | { | |
1311 | OPTION_CSM, | |
1312 | OPTION_CIS, | |
1313 | ... | |
1314 | }; | |
1315 | ||
1316 | struct | |
1317 | { | |
5a38dc70 | 1318 | const char *pattern; |
e135f41b | 1319 | int opt; |
5a38dc70 | 1320 | const char *description; |
5cd4edbe | 1321 | } options; |
e135f41b NC |
1322 | |
1323 | static struct options extension_opts[] = | |
1324 | { | |
1325 | { "Ncsm", OPTION_CSM, | |
1326 | "allow (disallow) CSM instruction" }, | |
1327 | { "Ncis", OPTION_CIS, | |
1328 | "allow (disallow) commersial instruction set" }, | |
1329 | { "Neis", OPTION_EIS, | |
1330 | "allow (disallow) extended instruction set" }, | |
1331 | ... | |
1332 | { "all-extensions", OPTION_ALL_EXTENSIONS, | |
1333 | "allow all instruction set extensions\n\ | |
1334 | (this is the default)" }, | |
1335 | { "no-extensions", OPTION_NO_EXTENSIONS, | |
1336 | "disallow all instruction set extensions" }, | |
1337 | { "pic", OPTION_PIC, | |
1338 | "position-independent code" }, | |
1339 | }; | |
1340 | ||
1341 | static struct options cpu_opts[] = | |
1342 | { | |
1343 | { "Ka_11_*", OPTION_KA11, "KA11 CPU. ..." }, | |
1344 | { "Kb_11_*", OPTION_KB11, "KB11 CPU. ..." }, | |
1345 | { "Kd_11_a*", OPTION_KD11A, "KD11-A CPU. ..." }, | |
1346 | { "Kd_11_b*", OPTION_KD11B, "KD11-B CPU. ..." }, | |
1347 | { "Kd_11_d*", OPTION_KD11D, "KD11-D CPU. ..." }, | |
1348 | { "Kd_11_e*", OPTION_KD11E, "KD11-E CPU. ..." }, | |
1349 | { "Kd_11_f*", OPTION_KD11F, "KD11-F CPU. ..." }, | |
1350 | { "Kd_11_h*", OPTION_KD11H, "KD11-H CPU. ..." }, | |
1351 | { "Kd_11_q*", OPTION_KD11Q, "KD11-Q CPU. ..." }, | |
1352 | { "Kd_11_z*", OPTION_KD11Z, "KD11-Z CPU. ..." }, | |
1353 | { "Df_11_*", OPTION_F11, "F11 CPU. ..." }, | |
1354 | { "Dj_11_*", OPTION_J11, "J11 CPU. ..." }, | |
1355 | { "Dt_11_*", OPTION_T11, "T11 CPU. ..." }, | |
1356 | }; | |
1357 | ||
1358 | static struct options model_opts[] = | |
1359 | { | |
1360 | { "P03", OPTION_PDP11_03, "same as ..." }, | |
1361 | { "P04", OPTION_PDP11_04, "same as ..." }, | |
1362 | { "P05", OPTION_PDP11_05, "same as ..." }, | |
1363 | { "P10", OPTION_PDP11_10, "same as ..." }, | |
1364 | { "P15", OPTION_PDP11_15, "same as ..." }, | |
1365 | { "P20", OPTION_PDP11_20, "same as ..." }, | |
1366 | { "P21", OPTION_PDP11_21, "same as ..." }, | |
1367 | { "P24", OPTION_PDP11_24, "same as ..." }, | |
1368 | { "P34", OPTION_PDP11_34, "same as ..." }, | |
1369 | { "P34a", OPTION_PDP11_34A, "same as ..." }, | |
1370 | { "P40", OPTION_PDP11_40, "same as ..." }, | |
1371 | { "P44", OPTION_PDP11_44, "same as ..." }, | |
1372 | { "P45", OPTION_PDP11_45, "same as ..." }, | |
1373 | { "P50", OPTION_PDP11_50, "same as ..." }, | |
1374 | { "P53", OPTION_PDP11_53, "same as ..." }, | |
1375 | { "P55", OPTION_PDP11_55, "same as ..." }, | |
1376 | { "P60", OPTION_PDP11_60, "same as ..." }, | |
1377 | { "P70", OPTION_PDP11_70, "same as ..." }, | |
1378 | { "P73", OPTION_PDP11_73, "same as ..." }, | |
1379 | { "P83", OPTION_PDP11_83, "same as ..." }, | |
1380 | { "P84", OPTION_PDP11_84, "same as ..." }, | |
1381 | { "P93", OPTION_PDP11_93, "same as ..." }, | |
1382 | { "P94", OPTION_PDP11_94, "same as ..." }, | |
1383 | }; | |
1384 | ||
1385 | struct | |
1386 | { | |
5a38dc70 | 1387 | const char *title; |
e135f41b NC |
1388 | struct options *opts; |
1389 | int num; | |
1390 | } all_opts[] = | |
1391 | { | |
1392 | { "PDP-11 instruction set extentions", | |
1393 | extension_opts, | |
1394 | sizeof extension_opts / sizeof extension_opts[0] }, | |
5cd4edbe | 1395 | { "PDP-11 CPU model options", |
e135f41b NC |
1396 | cpu_opts, |
1397 | sizeof cpu_opts / sizeof cpu_opts[0] }, | |
5cd4edbe | 1398 | { "PDP-11 machine model options", |
e135f41b NC |
1399 | model_opts, |
1400 | sizeof model_opts / sizeof model_opts[0] }, | |
1401 | }; | |
1402 | ||
1403 | int | |
1404 | parse_match (char *arg, char *pattern) | |
1405 | { | |
1406 | int yes = 1; | |
1407 | ||
1408 | while (*pattern) | |
1409 | { | |
1410 | switch (*pattern++) | |
1411 | { | |
1412 | case 'N': | |
1413 | if (strncmp (arg, "no-") == 0) | |
1414 | { | |
1415 | yes = 0; | |
1416 | arg += 3; | |
1417 | } | |
1418 | break; | |
1419 | ||
1420 | case 'K': | |
1421 | if (arg[0] == 'k') | |
1422 | arg++; | |
1423 | break; | |
1424 | ||
1425 | case 'D': | |
1426 | if (strncmp (arg, "kd", 2) == 0) | |
1427 | arg +=2; | |
1428 | break; | |
1429 | ||
1430 | case 'P': | |
1431 | if (strncmp (arg, "pdp-11/", 7) == 0) | |
1432 | arg += 7; | |
1433 | else if (strncmp (arg, "pdp11/", 6) == 0) | |
1434 | arg += 6; | |
1435 | else if (strncmp (arg, "11/", 3) == 0) | |
1436 | arg += 3; | |
1437 | break; | |
1438 | ||
1439 | case '_': | |
1440 | if (arg[0] == "-") | |
1441 | { | |
1442 | if (*++arg == 0) | |
1443 | return 0; | |
1444 | } | |
1445 | break; | |
1446 | ||
1447 | case '*': | |
1448 | return 1; | |
1449 | ||
1450 | default: | |
1451 | if (*arg++ != pattern[-1]) | |
1452 | return 0; | |
1453 | } | |
1454 | } | |
1455 | ||
1456 | return arg[0] == 0; | |
1457 | } | |
1458 | ||
1459 | int | |
1460 | fprint_opt (stream, pattern) | |
1461 | FILE *stream; | |
5a38dc70 | 1462 | const char *pattern; |
e135f41b NC |
1463 | { |
1464 | int n; | |
1465 | ||
1466 | while (*pattern) | |
1467 | { | |
1468 | switch (*pattern++) | |
1469 | { | |
1470 | case 'N': | |
1471 | n += fprintf (stream, "(no-)"); | |
1472 | break; | |
1473 | ||
1474 | case 'K': | |
1475 | n += fprintf (stream, "k"); | |
1476 | break; | |
1477 | ||
1478 | case 'P': | |
1479 | n += fprintf (stream "11/"); | |
1480 | break; | |
1481 | ||
1482 | case 'D': | |
1483 | case '_': | |
1484 | case '*': | |
1485 | break; | |
1486 | ||
1487 | default: | |
1488 | fputc (pattern[-1], stream); | |
1489 | n++; | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | return n; | |
1494 | } | |
1495 | ||
1496 | int | |
1497 | parse_option (char *arg) | |
1498 | { | |
1499 | int i, j; | |
1500 | ||
1501 | for (i = 0; i < sizeof all_opts / sizeof all_opts[0]; i++) | |
1502 | { | |
1503 | for (j = 0; j < all_opts[i].num; j++) | |
1504 | { | |
1505 | if (parse_match (arg, all_opts[i].opts[j].pattern)) | |
1506 | { | |
1507 | set_option (all_opts[i].opts[j].opt); | |
1508 | return 1; | |
1509 | } | |
1510 | } | |
1511 | } | |
1512 | ||
1513 | return 0; | |
1514 | } | |
1515 | ||
1516 | static void | |
1517 | fprint_space (stream, n) | |
1518 | FILE *stream; | |
1519 | int n; | |
1520 | { | |
1521 | while (n--) | |
1522 | fputc (' ', stream); | |
1523 | } | |
1524 | ||
1525 | void | |
1526 | md_show_usage (stream) | |
1527 | FILE *stream; | |
1528 | { | |
1529 | int i, j, n; | |
1530 | ||
1531 | for (i = 0; i < sizeof all_opts / sizeof all_opts[0]; i++) | |
1532 | { | |
1533 | fprintf (stream "\n%s:\n\n", all_opts[i].title); | |
1534 | ||
1535 | for (j = 0; j < all_opts[i].num; j++) | |
1536 | { | |
1537 | fprintf (stream, "-m"); | |
1538 | n = fprintf_opt (stream, all_opts[i].opts[j].pattern); | |
1539 | fprint_space (stream, 22 - n); | |
1540 | fprintf (stream, "%s\n", all_opts[i].opts[j].description); | |
1541 | } | |
1542 | } | |
1543 | } | |
1544 | */ | |
1545 | ||
1546 | void | |
1547 | md_show_usage (stream) | |
1548 | FILE *stream; | |
1549 | { | |
1550 | fprintf (stream, "\ | |
1551 | \n\ | |
1552 | PDP-11 instruction set extentions:\n\ | |
1553 | \n\ | |
1554 | -m(no-)cis allow (disallow) commersial instruction set\n\ | |
1555 | -m(no-)csm allow (disallow) CSM instruction\n\ | |
1556 | -m(no-)eis allow (disallow) full extended instruction set\n\ | |
1557 | -m(no-)fis allow (disallow) KEV11 floating-point instructions\n\ | |
1558 | -m(no-)fpp allow (disallow) FP-11 floating-point instructions\n\ | |
1559 | -m(no-)fpu allow (disallow) FP-11 floating-point instructions\n\ | |
1560 | -m(no-)limited-eis allow (disallow) limited extended instruction set\n\ | |
1561 | -m(no-)mfpt allow (disallow) processor type instruction\n\ | |
1562 | -m(no-)multiproc allow (disallow) multiprocessor instructions\n\ | |
1563 | -m(no-)mxps allow (disallow) processor status instructions\n\ | |
1564 | -m(no-)spl allow (disallow) SPL instruction\n\ | |
1565 | -m(no-)ucode allow (disallow) microcode instructions\n\ | |
1566 | -mall-extensions allow all instruction set extensions\n\ | |
1567 | (this is the default)\n\ | |
1568 | -mno-extentions disallow all instruction set extensions\n\ | |
1569 | -pic generate position-indepenent code\n\ | |
1570 | \n\ | |
1571 | PDP-11 CPU model options:\n\ | |
1572 | \n\ | |
1573 | -mka11* KA11 CPU. base line instruction set only\n\ | |
1574 | -mkb11* KB11 CPU. enable full EIS and SPL\n\ | |
1575 | -mkd11a* KD11-A CPU. enable limited EIS\n\ | |
1576 | -mkd11b* KD11-B CPU. base line instruction set only\n\ | |
1577 | -mkd11d* KD11-D CPU. base line instruction set only\n\ | |
1578 | -mkd11e* KD11-E CPU. enable full EIS, MTPS, and MFPS\n\ | |
1579 | -mkd11f* KD11-F CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1580 | -mkd11h* KD11-H CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1581 | -mkd11q* KD11-Q CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1582 | -mkd11k* KD11-K CPU. enable full EIS, MTPS, MFPS, LDUB, MED,\n\ | |
1583 | XFC, and MFPT\n\ | |
1584 | -mkd11z* KD11-Z CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1585 | and CSM\n\ | |
1586 | -mf11* F11 CPU. enable full EIS, MFPS, MTPS, and MFPT\n\ | |
1587 | -mj11* J11 CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1588 | CSM, TSTSET, and WRTLCK\n\ | |
1589 | -mt11* T11 CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1590 | \n\ | |
1591 | PDP-11 machine model options:\n\ | |
1592 | \n\ | |
1593 | -m11/03 same as -mkd11f\n\ | |
1594 | -m11/04 same as -mkd11d\n\ | |
1595 | -m11/05 same as -mkd11b\n\ | |
1596 | -m11/10 same as -mkd11b\n\ | |
1597 | -m11/15 same as -mka11\n\ | |
1598 | -m11/20 same as -mka11\n\ | |
1599 | -m11/21 same as -mt11\n\ | |
1600 | -m11/23 same as -mf11\n\ | |
1601 | -m11/24 same as -mf11\n\ | |
1602 | -m11/34 same as -mkd11e\n\ | |
1603 | -m11/34a same as -mkd11e -mfpp\n\ | |
1604 | -m11/35 same as -mkd11a\n\ | |
1605 | -m11/40 same as -mkd11a\n\ | |
1606 | -m11/44 same as -mkd11z\n\ | |
1607 | -m11/45 same as -mkb11\n\ | |
1608 | -m11/50 same as -mkb11\n\ | |
1609 | -m11/53 same as -mj11\n\ | |
1610 | -m11/55 same as -mkb11\n\ | |
1611 | -m11/60 same as -mkd11k\n\ | |
1612 | -m11/70 same as -mkb11\n\ | |
1613 | -m11/73 same as -mj11\n\ | |
1614 | -m11/83 same as -mj11\n\ | |
1615 | -m11/84 same as -mj11\n\ | |
1616 | -m11/93 same as -mj11\n\ | |
1617 | -m11/94 same as -mj11\n\ | |
1618 | "); | |
1619 | } | |
1620 | ||
1621 | symbolS * | |
1622 | md_undefined_symbol (name) | |
1623 | char *name ATTRIBUTE_UNUSED; | |
1624 | { | |
1625 | return 0; | |
1626 | } | |
1627 | ||
1628 | valueT | |
1629 | md_section_align (segment, size) | |
1630 | segT segment ATTRIBUTE_UNUSED; | |
1631 | valueT size; | |
1632 | { | |
1633 | return (size + 1) & ~1; | |
1634 | } | |
1635 | ||
1636 | long | |
1637 | md_pcrel_from (fixP) | |
1638 | fixS *fixP; | |
1639 | { | |
1640 | return fixP->fx_frag->fr_address + fixP->fx_where + fixP->fx_size; | |
1641 | } | |
1642 | ||
1643 | /* Translate internal representation of relocation info to BFD target | |
1644 | format. */ | |
1645 | arelent * | |
1646 | tc_gen_reloc (section, fixp) | |
1647 | asection *section ATTRIBUTE_UNUSED; | |
1648 | fixS *fixp; | |
1649 | { | |
1650 | arelent *reloc; | |
1651 | bfd_reloc_code_real_type code; | |
1652 | ||
1653 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
1654 | ||
1655 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); | |
1656 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
1657 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
1658 | ||
94f592af | 1659 | /* This is taken account for in md_apply_fix3(). */ |
e135f41b NC |
1660 | reloc->addend = -symbol_get_bfdsym (fixp->fx_addsy)->section->vma; |
1661 | ||
1662 | switch (fixp->fx_r_type) | |
1663 | { | |
1664 | case BFD_RELOC_16: | |
1665 | if (fixp->fx_pcrel) | |
1666 | code = BFD_RELOC_16_PCREL; | |
1667 | else | |
1668 | code = BFD_RELOC_16; | |
1669 | break; | |
1670 | ||
1671 | case BFD_RELOC_16_PCREL: | |
1672 | code = BFD_RELOC_16_PCREL; | |
1673 | break; | |
1674 | ||
1675 | default: | |
1676 | BAD_CASE (fixp->fx_r_type); | |
1677 | return NULL; | |
1678 | } | |
1679 | ||
1680 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
1681 | ||
1682 | if (reloc->howto == NULL) | |
1683 | { | |
1684 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1685 | "Can not represent %s relocation in this object file format", | |
1686 | bfd_get_reloc_code_name (code)); | |
1687 | return NULL; | |
1688 | } | |
1689 | ||
1690 | return reloc; | |
1691 | } | |
1692 | ||
1693 | void | |
1694 | pseudo_bss (c) | |
1695 | int c ATTRIBUTE_UNUSED; | |
1696 | { | |
1697 | int temp; | |
1698 | ||
1699 | temp = get_absolute_expression (); | |
1700 | subseg_set (bss_section, temp); | |
1701 | demand_empty_rest_of_line (); | |
1702 | } | |
1703 | ||
1704 | void | |
1705 | pseudo_even (c) | |
1706 | int c ATTRIBUTE_UNUSED; | |
1707 | { | |
1708 | int alignment = 1; /* 2^1 */ | |
1709 | frag_align (alignment, 0, 1); | |
1710 | record_alignment (now_seg, alignment); | |
1711 | } | |
1712 | ||
1713 | /* end of tc-pdp11.c */ |