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e135f41b | 1 | /* tc-pdp11.c - pdp11-specific - |
d87bef3a | 2 | Copyright (C) 2001-2023 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 | |
ec2655a6 | 8 | the Free Software Foundation; either version 3, or (at your option) |
e135f41b NC |
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 | |
bb0a86e1 NC |
18 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
19 | Boston, MA 02110-1301, USA. */ | |
e135f41b | 20 | |
e135f41b | 21 | #include "as.h" |
3882b010 | 22 | #include "safe-ctype.h" |
e135f41b NC |
23 | #include "opcode/pdp11.h" |
24 | ||
4d5f9b2a | 25 | extern int flonum_gen2vax (int, FLONUM_TYPE * f, LITTLENUM_TYPE *); |
cd3cde86 | 26 | |
4d5f9b2a | 27 | /* A representation for PDP-11 machine code. */ |
e135f41b NC |
28 | struct pdp11_code |
29 | { | |
6d4af3c2 | 30 | const char *error; |
e135f41b | 31 | int code; |
4d5f9b2a NC |
32 | int additional; /* Is there an additional word? */ |
33 | int word; /* Additional word, if any. */ | |
e135f41b NC |
34 | struct |
35 | { | |
36 | bfd_reloc_code_real_type type; | |
37 | expressionS exp; | |
38 | int pc_rel; | |
39 | } reloc; | |
40 | }; | |
41 | ||
4d5f9b2a NC |
42 | /* Instruction set extensions. |
43 | ||
44 | If you change this from an array to something else, please update | |
45 | the "PDP-11 instruction set extensions" comment in pdp11.h. */ | |
e135f41b NC |
46 | int pdp11_extension[PDP11_EXT_NUM]; |
47 | ||
4d5f9b2a | 48 | /* Assembly options. */ |
e135f41b NC |
49 | |
50 | #define ASM_OPT_PIC 1 | |
51 | #define ASM_OPT_NUM 2 | |
52 | ||
53 | int asm_option[ASM_OPT_NUM]; | |
54 | ||
55 | /* These chars start a comment anywhere in a source file (except inside | |
4d5f9b2a | 56 | another comment. */ |
5a38dc70 | 57 | const char comment_chars[] = "#/"; |
e135f41b | 58 | |
5cd4edbe | 59 | /* These chars only start a comment at the beginning of a line. */ |
5a38dc70 | 60 | const char line_comment_chars[] = "#/"; |
e135f41b | 61 | |
5a38dc70 | 62 | const char line_separator_chars[] = ";"; |
e135f41b | 63 | |
4d5f9b2a | 64 | /* Chars that can be used to separate mant from exp in floating point nums. */ |
5a38dc70 | 65 | const char EXP_CHARS[] = "eE"; |
e135f41b | 66 | |
4d5f9b2a NC |
67 | /* Chars that mean this number is a floating point constant. */ |
68 | /* as in 0f123.456. */ | |
69 | /* or 0H1.234E-12 (see exp chars above). */ | |
5a38dc70 | 70 | const char FLT_CHARS[] = "dDfF"; |
e135f41b NC |
71 | |
72 | void pseudo_even (int); | |
73 | void pseudo_bss (int); | |
74 | ||
5a38dc70 | 75 | const pseudo_typeS md_pseudo_table[] = |
e135f41b NC |
76 | { |
77 | { "bss", pseudo_bss, 0 }, | |
78 | { "even", pseudo_even, 0 }, | |
79 | { 0, 0, 0 }, | |
80 | }; | |
81 | ||
629310ab | 82 | static htab_t insn_hash = NULL; |
4d5f9b2a NC |
83 | \f |
84 | static int | |
17b9d67d | 85 | set_option (const char *arg) |
4d5f9b2a NC |
86 | { |
87 | int yes = 1; | |
88 | ||
89 | if (strcmp (arg, "all-extensions") == 0 | |
90 | || strcmp (arg, "all") == 0) | |
91 | { | |
92 | memset (pdp11_extension, ~0, sizeof pdp11_extension); | |
93 | pdp11_extension[PDP11_NONE] = 0; | |
94 | return 1; | |
95 | } | |
96 | else if (strcmp (arg, "no-extensions") == 0) | |
97 | { | |
98 | memset (pdp11_extension, 0, sizeof pdp11_extension); | |
99 | pdp11_extension[PDP11_BASIC] = 1; | |
100 | return 1; | |
101 | } | |
102 | ||
d34049e8 | 103 | if (startswith (arg, "no-")) |
4d5f9b2a NC |
104 | { |
105 | yes = 0; | |
106 | arg += 3; | |
107 | } | |
108 | ||
33eaf5de | 109 | /* Commercial instructions. */ |
4d5f9b2a NC |
110 | if (strcmp (arg, "cis") == 0) |
111 | pdp11_extension[PDP11_CIS] = yes; | |
112 | /* Call supervisor mode. */ | |
113 | else if (strcmp (arg, "csm") == 0) | |
114 | pdp11_extension[PDP11_CSM] = yes; | |
115 | /* Extended instruction set. */ | |
116 | else if (strcmp (arg, "eis") == 0) | |
117 | pdp11_extension[PDP11_EIS] = pdp11_extension[PDP11_LEIS] = yes; | |
118 | /* KEV11 floating-point. */ | |
119 | else if (strcmp (arg, "fis") == 0 | |
120 | || strcmp (arg, "kev11") == 0 | |
121 | || strcmp (arg, "kev-11") == 0) | |
122 | pdp11_extension[PDP11_FIS] = yes; | |
123 | /* FP-11 floating-point. */ | |
124 | else if (strcmp (arg, "fpp") == 0 | |
125 | || strcmp (arg, "fpu") == 0 | |
126 | || strcmp (arg, "fp11") == 0 | |
127 | || strcmp (arg, "fp-11") == 0 | |
128 | || strcmp (arg, "fpj11") == 0 | |
129 | || strcmp (arg, "fp-j11") == 0 | |
130 | || strcmp (arg, "fpj-11") == 0) | |
131 | pdp11_extension[PDP11_FPP] = yes; | |
132 | /* Limited extended insns. */ | |
133 | else if (strcmp (arg, "limited-eis") == 0) | |
134 | { | |
135 | pdp11_extension[PDP11_LEIS] = yes; | |
136 | if (!pdp11_extension[PDP11_LEIS]) | |
137 | pdp11_extension[PDP11_EIS] = 0; | |
138 | } | |
139 | /* Move from processor type. */ | |
140 | else if (strcmp (arg, "mfpt") == 0) | |
141 | pdp11_extension[PDP11_MFPT] = yes; | |
142 | /* Multiprocessor insns: */ | |
d34049e8 | 143 | else if (startswith (arg, "mproc") |
4d5f9b2a | 144 | /* TSTSET, WRTLCK */ |
d34049e8 | 145 | || startswith (arg, "multiproc")) |
4d5f9b2a NC |
146 | pdp11_extension[PDP11_MPROC] = yes; |
147 | /* Move from/to proc status. */ | |
148 | else if (strcmp (arg, "mxps") == 0) | |
149 | pdp11_extension[PDP11_MXPS] = yes; | |
150 | /* Position-independent code. */ | |
151 | else if (strcmp (arg, "pic") == 0) | |
152 | asm_option[ASM_OPT_PIC] = yes; | |
153 | /* Set priority level. */ | |
154 | else if (strcmp (arg, "spl") == 0) | |
155 | pdp11_extension[PDP11_SPL] = yes; | |
156 | /* Microcode instructions: */ | |
157 | else if (strcmp (arg, "ucode") == 0 | |
158 | /* LDUB, MED, XFC */ | |
159 | || strcmp (arg, "microcode") == 0) | |
160 | pdp11_extension[PDP11_UCODE] = yes; | |
161 | else | |
162 | return 0; | |
163 | ||
164 | return 1; | |
165 | } | |
166 | ||
167 | ||
e135f41b | 168 | static void |
4d5f9b2a | 169 | init_defaults (void) |
e135f41b NC |
170 | { |
171 | static int first = 1; | |
172 | ||
173 | if (first) | |
174 | { | |
175 | set_option ("all-extensions"); | |
176 | set_option ("pic"); | |
177 | first = 0; | |
178 | } | |
179 | } | |
180 | ||
e135f41b | 181 | void |
4d5f9b2a | 182 | md_begin (void) |
e135f41b NC |
183 | { |
184 | int i; | |
185 | ||
186 | init_defaults (); | |
187 | ||
629310ab | 188 | insn_hash = str_htab_create (); |
5cd4edbe | 189 | |
e135f41b | 190 | for (i = 0; i < pdp11_num_opcodes; i++) |
fe0e921f | 191 | str_hash_insert (insn_hash, pdp11_opcodes[i].name, pdp11_opcodes + i, 0); |
e135f41b | 192 | for (i = 0; i < pdp11_num_aliases; i++) |
fe0e921f | 193 | str_hash_insert (insn_hash, pdp11_aliases[i].name, pdp11_aliases + i, 0); |
e135f41b NC |
194 | } |
195 | ||
196 | void | |
4d5f9b2a | 197 | md_number_to_chars (char con[], valueT value, int nbytes) |
e135f41b NC |
198 | { |
199 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
4d5f9b2a | 200 | 0x12345678 is stored as "\x56\x78\x12\x34". It's |
33eaf5de | 201 | anyone's guess what 0x123456 would be stored like. */ |
e135f41b NC |
202 | |
203 | switch (nbytes) | |
204 | { | |
205 | case 0: | |
206 | break; | |
207 | case 1: | |
208 | con[0] = value & 0xff; | |
209 | break; | |
210 | case 2: | |
4d5f9b2a | 211 | con[0] = value & 0xff; |
e135f41b NC |
212 | con[1] = (value >> 8) & 0xff; |
213 | break; | |
214 | case 4: | |
215 | con[0] = (value >> 16) & 0xff; | |
216 | con[1] = (value >> 24) & 0xff; | |
4d5f9b2a | 217 | con[2] = value & 0xff; |
e135f41b NC |
218 | con[3] = (value >> 8) & 0xff; |
219 | break; | |
f6e6b052 | 220 | #ifdef BFD64 |
66e3eb08 SC |
221 | case 8: |
222 | con[0] = (value >> 48) & 0xff; | |
223 | con[1] = (value >> 56) & 0xff; | |
224 | con[2] = (value >> 32) & 0xff; | |
225 | con[3] = (value >> 40) & 0xff; | |
226 | con[4] = (value >> 16) & 0xff; | |
227 | con[5] = (value >> 24) & 0xff; | |
228 | con[6] = value & 0xff; | |
229 | con[7] = (value >> 8) & 0xff; | |
230 | break; | |
f6e6b052 | 231 | #endif |
e135f41b NC |
232 | default: |
233 | BAD_CASE (nbytes); | |
5cd4edbe | 234 | } |
e135f41b NC |
235 | } |
236 | ||
237 | /* Fix up some data or instructions after we find out the value of a symbol | |
94f592af | 238 | that they reference. Knows about order of bytes in address. */ |
e135f41b | 239 | |
94f592af | 240 | void |
55cf6793 | 241 | md_apply_fix (fixS *fixP, |
4d5f9b2a NC |
242 | valueT * valP, |
243 | segT seg ATTRIBUTE_UNUSED) | |
e135f41b NC |
244 | { |
245 | valueT code; | |
246 | valueT mask; | |
94f592af | 247 | valueT val = * valP; |
e135f41b NC |
248 | char *buf; |
249 | int shift; | |
250 | int size; | |
251 | ||
252 | buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
253 | size = fixP->fx_size; | |
3ec2b351 | 254 | code = md_chars_to_number ((unsigned char *) buf, size); |
e135f41b NC |
255 | |
256 | switch (fixP->fx_r_type) | |
257 | { | |
7553c869 AM |
258 | case BFD_RELOC_8: |
259 | mask = 0xff; | |
260 | shift = 0; | |
261 | break; | |
e135f41b NC |
262 | case BFD_RELOC_16: |
263 | case BFD_RELOC_16_PCREL: | |
264 | mask = 0xffff; | |
265 | shift = 0; | |
266 | break; | |
10a95fcc AM |
267 | case BFD_RELOC_32: |
268 | mask = 0xffffffff; | |
269 | shift = 0; | |
270 | break; | |
e135f41b NC |
271 | case BFD_RELOC_PDP11_DISP_8_PCREL: |
272 | mask = 0x00ff; | |
273 | shift = 1; | |
274 | break; | |
275 | case BFD_RELOC_PDP11_DISP_6_PCREL: | |
276 | mask = 0x003f; | |
277 | shift = 1; | |
14127cc4 | 278 | val = -val; |
e135f41b NC |
279 | break; |
280 | default: | |
281 | BAD_CASE (fixP->fx_r_type); | |
282 | } | |
283 | ||
284 | if (fixP->fx_addsy != NULL) | |
94f592af | 285 | val += symbol_get_bfdsym (fixP->fx_addsy)->section->vma; |
e135f41b NC |
286 | /* *value += fixP->fx_addsy->bsym->section->vma; */ |
287 | ||
288 | code &= ~mask; | |
94f592af | 289 | code |= (val >> shift) & mask; |
e135f41b | 290 | number_to_chars_littleendian (buf, code, size); |
94f592af NC |
291 | |
292 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
293 | fixP->fx_done = 1; | |
e135f41b NC |
294 | } |
295 | ||
296 | long | |
e046cf80 | 297 | md_chars_to_number (unsigned char *con, int nbytes) |
e135f41b NC |
298 | { |
299 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
4d5f9b2a | 300 | 0x12345678 is stored as "\x56\x78\x12\x34". It's |
33eaf5de | 301 | anyone's guess what 0x123456 would be stored like. */ |
e135f41b NC |
302 | switch (nbytes) |
303 | { | |
304 | case 0: | |
305 | return 0; | |
306 | case 1: | |
307 | return con[0]; | |
308 | case 2: | |
309 | return (con[1] << BITS_PER_CHAR) | con[0]; | |
310 | case 4: | |
311 | return | |
4d5f9b2a NC |
312 | (((con[1] << BITS_PER_CHAR) | con[0]) << (2 * BITS_PER_CHAR)) |
313 | |((con[3] << BITS_PER_CHAR) | con[2]); | |
e135f41b NC |
314 | default: |
315 | BAD_CASE (nbytes); | |
316 | return 0; | |
5cd4edbe | 317 | } |
e135f41b NC |
318 | } |
319 | \f | |
320 | static char * | |
321 | skip_whitespace (char *str) | |
322 | { | |
323 | while (*str == ' ' || *str == '\t') | |
324 | str++; | |
325 | return str; | |
326 | } | |
327 | ||
328 | static char * | |
329 | find_whitespace (char *str) | |
330 | { | |
331 | while (*str != ' ' && *str != '\t' && *str != 0) | |
332 | str++; | |
333 | return str; | |
334 | } | |
335 | ||
e135f41b NC |
336 | static char * |
337 | parse_reg (char *str, struct pdp11_code *operand) | |
338 | { | |
339 | str = skip_whitespace (str); | |
3882b010 | 340 | if (TOLOWER (*str) == 'r') |
e135f41b NC |
341 | { |
342 | str++; | |
343 | switch (*str) | |
344 | { | |
345 | case '0': case '1': case '2': case '3': | |
346 | case '4': case '5': case '6': case '7': | |
347 | operand->code = *str - '0'; | |
348 | str++; | |
349 | break; | |
350 | default: | |
20203fb9 | 351 | operand->error = _("Bad register name"); |
e135f41b NC |
352 | return str - 1; |
353 | } | |
354 | } | |
d34049e8 ML |
355 | else if (startswith (str, "sp") |
356 | || startswith (str, "SP")) | |
e135f41b NC |
357 | { |
358 | operand->code = 6; | |
359 | str += 2; | |
360 | } | |
d34049e8 ML |
361 | else if (startswith (str, "pc") |
362 | || startswith (str, "PC")) | |
e135f41b NC |
363 | { |
364 | operand->code = 7; | |
365 | str += 2; | |
366 | } | |
367 | else | |
1c912705 SC |
368 | { |
369 | operand->error = _("Bad register name"); | |
370 | return str; | |
371 | } | |
e135f41b | 372 | |
1c912705 SC |
373 | if (ISALNUM (*str) || *str == '_' || *str == '.') |
374 | { | |
375 | operand->error = _("Bad register name"); | |
376 | str -= 2; | |
377 | } | |
378 | ||
e135f41b NC |
379 | return str; |
380 | } | |
381 | ||
382 | static char * | |
cd3cde86 | 383 | parse_ac5 (char *str, struct pdp11_code *operand) |
e135f41b NC |
384 | { |
385 | str = skip_whitespace (str); | |
d34049e8 ML |
386 | if (startswith (str, "fr") |
387 | || startswith (str, "FR") | |
388 | || startswith (str, "ac") | |
389 | || startswith (str, "AC")) | |
e135f41b NC |
390 | { |
391 | str += 2; | |
392 | switch (*str) | |
393 | { | |
394 | case '0': case '1': case '2': case '3': | |
cd3cde86 | 395 | case '4': case '5': |
e135f41b NC |
396 | operand->code = *str - '0'; |
397 | str++; | |
398 | break; | |
399 | default: | |
20203fb9 | 400 | operand->error = _("Bad register name"); |
e135f41b NC |
401 | return str - 2; |
402 | } | |
403 | } | |
404 | else | |
405 | { | |
20203fb9 | 406 | operand->error = _("Bad register name"); |
e135f41b NC |
407 | return str; |
408 | } | |
409 | ||
410 | return str; | |
411 | } | |
412 | ||
cd3cde86 AM |
413 | static char * |
414 | parse_ac (char *str, struct pdp11_code *operand) | |
415 | { | |
416 | str = parse_ac5 (str, operand); | |
417 | if (!operand->error && operand->code > 3) | |
418 | { | |
20203fb9 | 419 | operand->error = _("Bad register name"); |
cd3cde86 AM |
420 | return str - 3; |
421 | } | |
422 | ||
423 | return str; | |
424 | } | |
425 | ||
e135f41b NC |
426 | static char * |
427 | parse_expression (char *str, struct pdp11_code *operand) | |
428 | { | |
429 | char *save_input_line_pointer; | |
430 | segT seg; | |
431 | ||
432 | save_input_line_pointer = input_line_pointer; | |
433 | input_line_pointer = str; | |
434 | seg = expression (&operand->reloc.exp); | |
435 | if (seg == NULL) | |
436 | { | |
437 | input_line_pointer = save_input_line_pointer; | |
20203fb9 | 438 | operand->error = _("Error in expression"); |
e135f41b NC |
439 | return str; |
440 | } | |
441 | ||
442 | str = input_line_pointer; | |
443 | input_line_pointer = save_input_line_pointer; | |
444 | ||
445 | operand->reloc.pc_rel = 0; | |
446 | ||
e135f41b NC |
447 | return str; |
448 | } | |
449 | ||
450 | static char * | |
451 | parse_op_no_deferred (char *str, struct pdp11_code *operand) | |
452 | { | |
cd3cde86 AM |
453 | LITTLENUM_TYPE literal_float[2]; |
454 | ||
e135f41b NC |
455 | str = skip_whitespace (str); |
456 | ||
457 | switch (*str) | |
458 | { | |
459 | case '(': /* (rn) and (rn)+ */ | |
460 | str = parse_reg (str + 1, operand); | |
461 | if (operand->error) | |
462 | return str; | |
463 | str = skip_whitespace (str); | |
464 | if (*str != ')') | |
465 | { | |
20203fb9 | 466 | operand->error = _("Missing ')'"); |
e135f41b NC |
467 | return str; |
468 | } | |
469 | str++; | |
470 | if (*str == '+') | |
471 | { | |
472 | operand->code |= 020; | |
473 | str++; | |
474 | } | |
475 | else | |
476 | { | |
477 | operand->code |= 010; | |
478 | } | |
479 | break; | |
480 | ||
4d5f9b2a NC |
481 | /* Immediate. */ |
482 | case '#': | |
5cd4edbe | 483 | case '$': |
e135f41b NC |
484 | str = parse_expression (str + 1, operand); |
485 | if (operand->error) | |
486 | return str; | |
5b7c81bd | 487 | operand->additional = true; |
e135f41b NC |
488 | operand->word = operand->reloc.exp.X_add_number; |
489 | switch (operand->reloc.exp.X_op) | |
490 | { | |
491 | case O_constant: | |
492 | break; | |
493 | case O_symbol: | |
494 | case O_add: | |
495 | case O_subtract: | |
496 | operand->reloc.type = BFD_RELOC_16; | |
497 | operand->reloc.pc_rel = 0; | |
498 | break; | |
cd3cde86 AM |
499 | case O_big: |
500 | if (operand->reloc.exp.X_add_number > 0) | |
501 | { | |
20203fb9 | 502 | operand->error = _("Error in expression"); |
cd3cde86 AM |
503 | break; |
504 | } | |
4d5f9b2a | 505 | /* It's a floating literal... */ |
cd3cde86 AM |
506 | know (operand->reloc.exp.X_add_number < 0); |
507 | flonum_gen2vax ('f', &generic_floating_point_number, literal_float); | |
508 | operand->word = literal_float[0]; | |
509 | if (literal_float[1] != 0) | |
510 | as_warn (_("Low order bits truncated in immediate float operand")); | |
511 | break; | |
e135f41b | 512 | default: |
20203fb9 | 513 | operand->error = _("Error in expression"); |
e135f41b NC |
514 | break; |
515 | } | |
516 | operand->code = 027; | |
517 | break; | |
518 | ||
4d5f9b2a NC |
519 | /* label, d(rn), -(rn) */ |
520 | default: | |
e135f41b | 521 | { |
d34049e8 | 522 | if (startswith (str, "-(")) /* -(rn) */ |
e135f41b NC |
523 | { |
524 | str = parse_reg (str + 2, operand); | |
525 | if (operand->error) | |
526 | return str; | |
527 | str = skip_whitespace (str); | |
528 | if (*str != ')') | |
529 | { | |
20203fb9 | 530 | operand->error = _("Missing ')'"); |
e135f41b NC |
531 | return str; |
532 | } | |
533 | operand->code |= 040; | |
534 | str++; | |
535 | break; | |
536 | } | |
537 | ||
538 | str = parse_expression (str, operand); | |
539 | if (operand->error) | |
540 | return str; | |
541 | ||
542 | str = skip_whitespace (str); | |
543 | ||
4d5f9b2a | 544 | if (*str != '(') |
e135f41b | 545 | { |
e135f41b NC |
546 | operand->code = 067; |
547 | operand->additional = 1; | |
548 | operand->word = 0; | |
549 | operand->reloc.type = BFD_RELOC_16_PCREL; | |
550 | operand->reloc.pc_rel = 1; | |
551 | break; | |
552 | } | |
553 | ||
4d5f9b2a NC |
554 | /* d(rn) */ |
555 | str++; | |
e135f41b NC |
556 | str = parse_reg (str, operand); |
557 | if (operand->error) | |
558 | return str; | |
559 | ||
560 | str = skip_whitespace (str); | |
561 | ||
562 | if (*str != ')') | |
563 | { | |
20203fb9 | 564 | operand->error = _("Missing ')'"); |
e135f41b NC |
565 | return str; |
566 | } | |
567 | ||
568 | str++; | |
5b7c81bd | 569 | operand->additional = true; |
e135f41b NC |
570 | operand->code |= 060; |
571 | switch (operand->reloc.exp.X_op) | |
572 | { | |
573 | case O_symbol: | |
bb0a86e1 NC |
574 | operand->reloc.type = BFD_RELOC_16; |
575 | operand->reloc.pc_rel = 0; | |
e135f41b NC |
576 | break; |
577 | case O_constant: | |
578 | if ((operand->code & 7) == 7) | |
579 | { | |
580 | operand->reloc.pc_rel = 1; | |
581 | operand->word = operand->reloc.exp.X_add_number; | |
582 | } | |
583 | else | |
4d5f9b2a NC |
584 | operand->word = operand->reloc.exp.X_add_number; |
585 | ||
e135f41b NC |
586 | break; |
587 | default: | |
588 | BAD_CASE (operand->reloc.exp.X_op); | |
589 | } | |
590 | break; | |
591 | } | |
592 | } | |
593 | ||
594 | return str; | |
595 | } | |
596 | ||
597 | static char * | |
cd3cde86 | 598 | parse_op_noreg (char *str, struct pdp11_code *operand) |
e135f41b NC |
599 | { |
600 | str = skip_whitespace (str); | |
e135f41b NC |
601 | operand->error = NULL; |
602 | ||
603 | if (*str == '@' || *str == '*') | |
604 | { | |
3cf2b669 JPC |
605 | /* @(Rn) == @0(Rn): Mode 7, Indexed deferred. |
606 | Check for auto-increment deferred. */ | |
607 | if (str[1] == '(' | |
608 | && str[2] != 0 | |
609 | && str[3] != 0 | |
610 | && str[4] != 0 | |
611 | && str[5] != '+') | |
612 | { | |
613 | /* Change implied to explicit index deferred. */ | |
614 | *str = '0'; | |
615 | str = parse_op_no_deferred (str, operand); | |
616 | } | |
617 | else | |
8f9ea98b JPC |
618 | { |
619 | /* @Rn == (Rn): Register deferred. */ | |
620 | str = parse_reg (str + 1, operand); | |
621 | ||
622 | /* Not @Rn */ | |
623 | if (operand->error) | |
624 | { | |
625 | operand->error = NULL; | |
626 | str = parse_op_no_deferred (str, operand); | |
627 | } | |
628 | } | |
3cf2b669 | 629 | |
e135f41b NC |
630 | if (operand->error) |
631 | return str; | |
8f9ea98b | 632 | |
e135f41b NC |
633 | operand->code |= 010; |
634 | } | |
635 | else | |
636 | str = parse_op_no_deferred (str, operand); | |
637 | ||
638 | return str; | |
639 | } | |
640 | ||
cd3cde86 AM |
641 | static char * |
642 | parse_op (char *str, struct pdp11_code *operand) | |
643 | { | |
644 | str = skip_whitespace (str); | |
645 | ||
646 | str = parse_reg (str, operand); | |
647 | if (!operand->error) | |
648 | return str; | |
649 | ||
650 | operand->error = NULL; | |
651 | parse_ac5 (str, operand); | |
652 | if (!operand->error) | |
653 | { | |
20203fb9 | 654 | operand->error = _("Float AC not legal as integer operand"); |
cd3cde86 AM |
655 | return str; |
656 | } | |
5d6255fe | 657 | |
cd3cde86 AM |
658 | return parse_op_noreg (str, operand); |
659 | } | |
660 | ||
661 | static char * | |
662 | parse_fop (char *str, struct pdp11_code *operand) | |
663 | { | |
664 | str = skip_whitespace (str); | |
665 | ||
666 | str = parse_ac5 (str, operand); | |
667 | if (!operand->error) | |
668 | return str; | |
669 | ||
670 | operand->error = NULL; | |
671 | parse_reg (str, operand); | |
672 | if (!operand->error) | |
673 | { | |
20203fb9 | 674 | operand->error = _("General register not legal as float operand"); |
cd3cde86 AM |
675 | return str; |
676 | } | |
677 | ||
678 | return parse_op_noreg (str, operand); | |
679 | } | |
680 | ||
e135f41b NC |
681 | static char * |
682 | parse_separator (char *str, int *error) | |
683 | { | |
684 | str = skip_whitespace (str); | |
685 | *error = (*str != ','); | |
686 | if (!*error) | |
687 | str++; | |
688 | return str; | |
689 | } | |
690 | ||
691 | void | |
4d5f9b2a | 692 | md_assemble (char *instruction_string) |
e135f41b | 693 | { |
5a38dc70 | 694 | const struct pdp11_opcode *op; |
e135f41b NC |
695 | struct pdp11_code insn, op1, op2; |
696 | int error; | |
697 | int size; | |
6d4af3c2 | 698 | const char *err = NULL; |
e135f41b NC |
699 | char *str; |
700 | char *p; | |
701 | char c; | |
702 | ||
703 | str = skip_whitespace (instruction_string); | |
704 | p = find_whitespace (str); | |
705 | if (p - str == 0) | |
706 | { | |
20203fb9 | 707 | as_bad (_("No instruction found")); |
e135f41b NC |
708 | return; |
709 | } | |
710 | ||
711 | c = *p; | |
712 | *p = '\0'; | |
629310ab | 713 | op = (struct pdp11_opcode *)str_hash_find (insn_hash, str); |
e135f41b NC |
714 | *p = c; |
715 | if (op == 0) | |
716 | { | |
cd3cde86 | 717 | as_bad (_("Unknown instruction '%s'"), str); |
e135f41b NC |
718 | return; |
719 | } | |
720 | ||
721 | if (!pdp11_extension[op->extension]) | |
722 | { | |
20203fb9 | 723 | as_warn (_("Unsupported instruction set extension: %s"), op->name); |
e135f41b NC |
724 | return; |
725 | } | |
726 | ||
727 | insn.error = NULL; | |
728 | insn.code = op->opcode; | |
729 | insn.reloc.type = BFD_RELOC_NONE; | |
730 | op1.error = NULL; | |
5b7c81bd | 731 | op1.additional = false; |
e135f41b NC |
732 | op1.reloc.type = BFD_RELOC_NONE; |
733 | op2.error = NULL; | |
5b7c81bd | 734 | op2.additional = false; |
e135f41b NC |
735 | op2.reloc.type = BFD_RELOC_NONE; |
736 | ||
737 | str = p; | |
738 | size = 2; | |
739 | ||
740 | switch (op->type) | |
741 | { | |
742 | case PDP11_OPCODE_NO_OPS: | |
743 | str = skip_whitespace (str); | |
e135f41b NC |
744 | break; |
745 | ||
746 | case PDP11_OPCODE_IMM3: | |
747 | case PDP11_OPCODE_IMM6: | |
748 | case PDP11_OPCODE_IMM8: | |
749 | str = skip_whitespace (str); | |
750 | if (*str == '#' || *str == '$') | |
751 | str++; | |
752 | str = parse_expression (str, &op1); | |
753 | if (op1.error) | |
754 | break; | |
cd3cde86 AM |
755 | if (op1.reloc.exp.X_op != O_constant || op1.reloc.type != BFD_RELOC_NONE) |
756 | { | |
20203fb9 | 757 | op1.error = _("operand is not an absolute constant"); |
cd3cde86 AM |
758 | break; |
759 | } | |
e135f41b NC |
760 | switch (op->type) |
761 | { | |
762 | case PDP11_OPCODE_IMM3: | |
cd3cde86 | 763 | if (op1.reloc.exp.X_add_number & ~7) |
e135f41b | 764 | { |
20203fb9 | 765 | op1.error = _("3-bit immediate out of range"); |
e135f41b NC |
766 | break; |
767 | } | |
768 | break; | |
769 | case PDP11_OPCODE_IMM6: | |
cd3cde86 | 770 | if (op1.reloc.exp.X_add_number & ~0x3f) |
e135f41b | 771 | { |
20203fb9 | 772 | op1.error = _("6-bit immediate out of range"); |
e135f41b NC |
773 | break; |
774 | } | |
775 | break; | |
776 | case PDP11_OPCODE_IMM8: | |
cd3cde86 | 777 | if (op1.reloc.exp.X_add_number & ~0xff) |
e135f41b | 778 | { |
20203fb9 | 779 | op1.error = _("8-bit immediate out of range"); |
e135f41b NC |
780 | break; |
781 | } | |
782 | break; | |
783 | } | |
cd3cde86 | 784 | insn.code |= op1.reloc.exp.X_add_number; |
e135f41b NC |
785 | break; |
786 | ||
787 | case PDP11_OPCODE_DISPL: | |
788 | { | |
d3ce72d0 NC |
789 | char *new_pointer; |
790 | new_pointer = parse_expression (str, &op1); | |
e135f41b NC |
791 | op1.code = 0; |
792 | op1.reloc.pc_rel = 1; | |
793 | op1.reloc.type = BFD_RELOC_PDP11_DISP_8_PCREL; | |
794 | if (op1.reloc.exp.X_op != O_symbol) | |
795 | { | |
20203fb9 | 796 | op1.error = _("Symbol expected"); |
e135f41b NC |
797 | break; |
798 | } | |
799 | if (op1.code & ~0xff) | |
800 | { | |
20203fb9 | 801 | err = _("8-bit displacement out of range"); |
e135f41b NC |
802 | break; |
803 | } | |
d3ce72d0 | 804 | str = new_pointer; |
e135f41b NC |
805 | insn.code |= op1.code; |
806 | insn.reloc = op1.reloc; | |
807 | } | |
808 | break; | |
809 | ||
810 | case PDP11_OPCODE_REG: | |
811 | str = parse_reg (str, &op1); | |
812 | if (op1.error) | |
813 | break; | |
814 | insn.code |= op1.code; | |
815 | break; | |
816 | ||
817 | case PDP11_OPCODE_OP: | |
818 | str = parse_op (str, &op1); | |
819 | if (op1.error) | |
820 | break; | |
821 | insn.code |= op1.code; | |
822 | if (op1.additional) | |
823 | size += 2; | |
824 | break; | |
825 | ||
cd3cde86 AM |
826 | case PDP11_OPCODE_FOP: |
827 | str = parse_fop (str, &op1); | |
828 | if (op1.error) | |
829 | break; | |
830 | insn.code |= op1.code; | |
831 | if (op1.additional) | |
832 | size += 2; | |
833 | break; | |
834 | ||
e135f41b NC |
835 | case PDP11_OPCODE_REG_OP: |
836 | str = parse_reg (str, &op2); | |
837 | if (op2.error) | |
838 | break; | |
839 | insn.code |= op2.code << 6; | |
840 | str = parse_separator (str, &error); | |
841 | if (error) | |
842 | { | |
20203fb9 | 843 | op2.error = _("Missing ','"); |
e135f41b NC |
844 | break; |
845 | } | |
846 | str = parse_op (str, &op1); | |
847 | if (op1.error) | |
848 | break; | |
849 | insn.code |= op1.code; | |
850 | if (op1.additional) | |
851 | size += 2; | |
852 | break; | |
853 | ||
854 | case PDP11_OPCODE_REG_OP_REV: | |
855 | str = parse_op (str, &op1); | |
856 | if (op1.error) | |
857 | break; | |
858 | insn.code |= op1.code; | |
859 | if (op1.additional) | |
860 | size += 2; | |
861 | str = parse_separator (str, &error); | |
862 | if (error) | |
863 | { | |
20203fb9 | 864 | op2.error = _("Missing ','"); |
e135f41b NC |
865 | break; |
866 | } | |
867 | str = parse_reg (str, &op2); | |
868 | if (op2.error) | |
869 | break; | |
870 | insn.code |= op2.code << 6; | |
871 | break; | |
872 | ||
cd3cde86 AM |
873 | case PDP11_OPCODE_AC_FOP: |
874 | str = parse_ac (str, &op2); | |
875 | if (op2.error) | |
876 | break; | |
877 | insn.code |= op2.code << 6; | |
878 | str = parse_separator (str, &error); | |
879 | if (error) | |
880 | { | |
20203fb9 | 881 | op1.error = _("Missing ','"); |
cd3cde86 AM |
882 | break; |
883 | } | |
884 | str = parse_fop (str, &op1); | |
885 | if (op1.error) | |
886 | break; | |
887 | insn.code |= op1.code; | |
888 | if (op1.additional) | |
889 | size += 2; | |
890 | break; | |
891 | ||
892 | case PDP11_OPCODE_FOP_AC: | |
893 | str = parse_fop (str, &op1); | |
894 | if (op1.error) | |
895 | break; | |
896 | insn.code |= op1.code; | |
897 | if (op1.additional) | |
898 | size += 2; | |
899 | str = parse_separator (str, &error); | |
900 | if (error) | |
901 | { | |
20203fb9 | 902 | op1.error = _("Missing ','"); |
cd3cde86 AM |
903 | break; |
904 | } | |
905 | str = parse_ac (str, &op2); | |
906 | if (op2.error) | |
907 | break; | |
908 | insn.code |= op2.code << 6; | |
909 | break; | |
910 | ||
e135f41b NC |
911 | case PDP11_OPCODE_AC_OP: |
912 | str = parse_ac (str, &op2); | |
913 | if (op2.error) | |
914 | break; | |
915 | insn.code |= op2.code << 6; | |
916 | str = parse_separator (str, &error); | |
917 | if (error) | |
918 | { | |
20203fb9 | 919 | op1.error = _("Missing ','"); |
e135f41b NC |
920 | break; |
921 | } | |
922 | str = parse_op (str, &op1); | |
923 | if (op1.error) | |
924 | break; | |
925 | insn.code |= op1.code; | |
926 | if (op1.additional) | |
927 | size += 2; | |
928 | break; | |
929 | ||
cd3cde86 AM |
930 | case PDP11_OPCODE_OP_AC: |
931 | str = parse_op (str, &op1); | |
932 | if (op1.error) | |
933 | break; | |
934 | insn.code |= op1.code; | |
935 | if (op1.additional) | |
936 | size += 2; | |
937 | str = parse_separator (str, &error); | |
938 | if (error) | |
939 | { | |
20203fb9 | 940 | op1.error = _("Missing ','"); |
cd3cde86 AM |
941 | break; |
942 | } | |
943 | str = parse_ac (str, &op2); | |
944 | if (op2.error) | |
945 | break; | |
946 | insn.code |= op2.code << 6; | |
947 | break; | |
948 | ||
e135f41b NC |
949 | case PDP11_OPCODE_OP_OP: |
950 | str = parse_op (str, &op1); | |
951 | if (op1.error) | |
952 | break; | |
953 | insn.code |= op1.code << 6; | |
954 | if (op1.additional) | |
955 | size += 2; | |
956 | str = parse_separator (str, &error); | |
957 | if (error) | |
958 | { | |
20203fb9 | 959 | op2.error = _("Missing ','"); |
e135f41b NC |
960 | break; |
961 | } | |
962 | str = parse_op (str, &op2); | |
963 | if (op2.error) | |
964 | break; | |
965 | insn.code |= op2.code; | |
966 | if (op2.additional) | |
967 | size += 2; | |
968 | break; | |
969 | ||
970 | case PDP11_OPCODE_REG_DISPL: | |
971 | { | |
d3ce72d0 | 972 | char *new_pointer; |
e135f41b NC |
973 | str = parse_reg (str, &op2); |
974 | if (op2.error) | |
975 | break; | |
976 | insn.code |= op2.code << 6; | |
977 | str = parse_separator (str, &error); | |
978 | if (error) | |
979 | { | |
20203fb9 | 980 | op1.error = _("Missing ','"); |
e135f41b NC |
981 | break; |
982 | } | |
d3ce72d0 | 983 | new_pointer = parse_expression (str, &op1); |
e135f41b NC |
984 | op1.code = 0; |
985 | op1.reloc.pc_rel = 1; | |
986 | op1.reloc.type = BFD_RELOC_PDP11_DISP_6_PCREL; | |
987 | if (op1.reloc.exp.X_op != O_symbol) | |
988 | { | |
20203fb9 | 989 | op1.error = _("Symbol expected"); |
e135f41b NC |
990 | break; |
991 | } | |
992 | if (op1.code & ~0x3f) | |
993 | { | |
20203fb9 | 994 | err = _("6-bit displacement out of range"); |
e135f41b NC |
995 | break; |
996 | } | |
d3ce72d0 | 997 | str = new_pointer; |
e135f41b NC |
998 | insn.code |= op1.code; |
999 | insn.reloc = op1.reloc; | |
1000 | } | |
1001 | break; | |
5cd4edbe | 1002 | |
e135f41b NC |
1003 | default: |
1004 | BAD_CASE (op->type); | |
1005 | } | |
1006 | ||
1007 | if (op1.error) | |
1008 | err = op1.error; | |
1009 | else if (op2.error) | |
1010 | err = op2.error; | |
1011 | else | |
1012 | { | |
1013 | str = skip_whitespace (str); | |
1014 | if (*str) | |
20203fb9 | 1015 | err = _("Too many operands"); |
e135f41b NC |
1016 | } |
1017 | ||
1018 | { | |
1019 | char *to = NULL; | |
5cd4edbe | 1020 | |
e135f41b NC |
1021 | if (err) |
1022 | { | |
20203fb9 | 1023 | as_bad ("%s", err); |
e135f41b NC |
1024 | return; |
1025 | } | |
1026 | ||
1027 | to = frag_more (size); | |
1028 | ||
1029 | md_number_to_chars (to, insn.code, 2); | |
1030 | if (insn.reloc.type != BFD_RELOC_NONE) | |
1031 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1032 | &insn.reloc.exp, insn.reloc.pc_rel, insn.reloc.type); | |
1033 | to += 2; | |
1034 | ||
1035 | if (op1.additional) | |
1036 | { | |
1037 | md_number_to_chars (to, op1.word, 2); | |
1038 | if (op1.reloc.type != BFD_RELOC_NONE) | |
1039 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1040 | &op1.reloc.exp, op1.reloc.pc_rel, op1.reloc.type); | |
1041 | to += 2; | |
1042 | } | |
1043 | ||
1044 | if (op2.additional) | |
1045 | { | |
1046 | md_number_to_chars (to, op2.word, 2); | |
1047 | if (op2.reloc.type != BFD_RELOC_NONE) | |
1048 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1049 | &op2.reloc.exp, op2.reloc.pc_rel, op2.reloc.type); | |
1050 | } | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | int | |
4d5f9b2a NC |
1055 | md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED, |
1056 | segT segment ATTRIBUTE_UNUSED) | |
e135f41b NC |
1057 | { |
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | void | |
4d5f9b2a NC |
1062 | md_convert_frag (bfd *headers ATTRIBUTE_UNUSED, |
1063 | segT seg ATTRIBUTE_UNUSED, | |
1064 | fragS *fragP ATTRIBUTE_UNUSED) | |
e135f41b NC |
1065 | { |
1066 | } | |
1067 | ||
2b4f075a HPN |
1068 | int md_short_jump_size = 2; |
1069 | int md_long_jump_size = 4; | |
e135f41b NC |
1070 | |
1071 | void | |
4d5f9b2a NC |
1072 | md_create_short_jump (char *ptr ATTRIBUTE_UNUSED, |
1073 | addressT from_addr ATTRIBUTE_UNUSED, | |
1074 | addressT to_addr ATTRIBUTE_UNUSED, | |
1075 | fragS *frag ATTRIBUTE_UNUSED, | |
1076 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
e135f41b NC |
1077 | { |
1078 | } | |
1079 | ||
1080 | void | |
4d5f9b2a NC |
1081 | md_create_long_jump (char *ptr ATTRIBUTE_UNUSED, |
1082 | addressT from_addr ATTRIBUTE_UNUSED, | |
1083 | addressT to_addr ATTRIBUTE_UNUSED, | |
1084 | fragS *frag ATTRIBUTE_UNUSED, | |
1085 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
e135f41b NC |
1086 | { |
1087 | } | |
1088 | ||
1089 | static int | |
17b9d67d | 1090 | set_cpu_model (const char *arg) |
e135f41b NC |
1091 | { |
1092 | char buf[4]; | |
1093 | char *model = buf; | |
1094 | ||
1095 | if (arg[0] == 'k') | |
1096 | arg++; | |
1097 | ||
1098 | *model++ = *arg++; | |
1099 | ||
1100 | if (strchr ("abdx", model[-1]) == NULL) | |
1101 | return 0; | |
1102 | ||
1103 | if (model[-1] == 'd') | |
1104 | { | |
4d5f9b2a | 1105 | if (arg[0] == 'f' || arg[0] == 'j') |
e135f41b NC |
1106 | model[-1] = *arg++; |
1107 | } | |
1108 | else if (model[-1] == 'x') | |
1109 | { | |
1110 | if (arg[0] == 't') | |
1111 | model[-1] = *arg++; | |
1112 | } | |
1113 | ||
1114 | if (arg[0] == '-') | |
1115 | arg++; | |
1116 | ||
d34049e8 | 1117 | if (!startswith (arg, "11")) |
e135f41b NC |
1118 | return 0; |
1119 | arg += 2; | |
1120 | ||
1121 | if (arg[0] == '-') | |
1122 | { | |
1123 | if (*++arg == 0) | |
1124 | return 0; | |
1125 | } | |
1126 | ||
4d5f9b2a | 1127 | /* Allow up to two revision letters. */ |
e135f41b NC |
1128 | if (arg[0] != 0) |
1129 | *model++ = *arg++; | |
1130 | if (arg[0] != 0) | |
1131 | *model++ = *arg++; | |
1132 | ||
1133 | *model++ = 0; | |
1134 | ||
1135 | set_option ("no-extensions"); | |
1136 | ||
4d5f9b2a | 1137 | /* KA11 (11/15/20). */ |
d34049e8 | 1138 | if (startswith (buf, "a")) |
4d5f9b2a | 1139 | return 1; /* No extensions. */ |
e135f41b | 1140 | |
4d5f9b2a | 1141 | /* KB11 (11/45/50/55/70). */ |
d34049e8 | 1142 | else if (startswith (buf, "b")) |
4d5f9b2a | 1143 | return set_option ("eis") && set_option ("spl"); |
e135f41b | 1144 | |
4d5f9b2a | 1145 | /* KD11-A (11/35/40). */ |
d34049e8 | 1146 | else if (startswith (buf, "da")) |
e135f41b NC |
1147 | return set_option ("limited-eis"); |
1148 | ||
4d5f9b2a | 1149 | /* KD11-B (11/05/10). */ |
d34049e8 | 1150 | else if (startswith (buf, "db") |
4d5f9b2a | 1151 | /* KD11-D (11/04). */ |
d34049e8 | 1152 | || startswith (buf, "dd")) |
e135f41b NC |
1153 | return 1; /* no extensions */ |
1154 | ||
4d5f9b2a | 1155 | /* KD11-E (11/34). */ |
d34049e8 | 1156 | else if (startswith (buf, "de")) |
4d5f9b2a NC |
1157 | return set_option ("eis") && set_option ("mxps"); |
1158 | ||
1159 | /* KD11-F (11/03). */ | |
d34049e8 | 1160 | else if (startswith (buf, "df") |
4d5f9b2a | 1161 | /* KD11-H (11/03). */ |
d34049e8 | 1162 | || startswith (buf, "dh") |
4d5f9b2a | 1163 | /* KD11-Q (11/03). */ |
d34049e8 | 1164 | || startswith (buf, "dq")) |
4d5f9b2a NC |
1165 | return set_option ("limited-eis") && set_option ("mxps"); |
1166 | ||
1167 | /* KD11-K (11/60). */ | |
d34049e8 | 1168 | else if (startswith (buf, "dk")) |
4d5f9b2a NC |
1169 | return set_option ("eis") |
1170 | && set_option ("mxps") | |
1171 | && set_option ("ucode"); | |
1172 | ||
1173 | /* KD11-Z (11/44). */ | |
d34049e8 | 1174 | else if (startswith (buf, "dz")) |
4d5f9b2a NC |
1175 | return set_option ("csm") |
1176 | && set_option ("eis") | |
1177 | && set_option ("mfpt") | |
1178 | && set_option ("mxps") | |
1179 | && set_option ("spl"); | |
1180 | ||
1181 | /* F11 (11/23/24). */ | |
d34049e8 | 1182 | else if (startswith (buf, "f")) |
4d5f9b2a NC |
1183 | return set_option ("eis") |
1184 | && set_option ("mfpt") | |
1185 | && set_option ("mxps"); | |
1186 | ||
1187 | /* J11 (11/53/73/83/84/93/94). */ | |
d34049e8 | 1188 | else if (startswith (buf, "j")) |
4d5f9b2a NC |
1189 | return set_option ("csm") |
1190 | && set_option ("eis") | |
1191 | && set_option ("mfpt") | |
1192 | && set_option ("multiproc") | |
1193 | && set_option ("mxps") | |
1194 | && set_option ("spl"); | |
1195 | ||
1196 | /* T11 (11/21). */ | |
d34049e8 | 1197 | else if (startswith (buf, "t")) |
4d5f9b2a NC |
1198 | return set_option ("limited-eis") |
1199 | && set_option ("mxps"); | |
e135f41b NC |
1200 | |
1201 | else | |
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | static int | |
17b9d67d | 1206 | set_machine_model (const char *arg) |
e135f41b | 1207 | { |
d34049e8 ML |
1208 | if (!startswith (arg, "pdp-11/") |
1209 | && !startswith (arg, "pdp11/") | |
1210 | && !startswith (arg, "11/")) | |
e135f41b NC |
1211 | return 0; |
1212 | ||
d34049e8 | 1213 | if (startswith (arg, "pdp")) |
e135f41b NC |
1214 | arg += 3; |
1215 | if (arg[0] == '-') | |
1216 | arg++; | |
d34049e8 | 1217 | if (startswith (arg, "11/")) |
e135f41b NC |
1218 | arg += 3; |
1219 | ||
4d5f9b2a NC |
1220 | if (strcmp (arg, "03") == 0) |
1221 | return set_cpu_model ("kd11f"); | |
1222 | ||
1223 | else if (strcmp (arg, "04") == 0) | |
1224 | return set_cpu_model ("kd11d"); | |
e135f41b | 1225 | |
4d5f9b2a NC |
1226 | else if (strcmp (arg, "05") == 0 |
1227 | || strcmp (arg, "10") == 0) | |
1228 | return set_cpu_model ("kd11b"); | |
e135f41b | 1229 | |
4d5f9b2a NC |
1230 | else if (strcmp (arg, "15") == 0 |
1231 | || strcmp (arg, "20") == 0) | |
1232 | return set_cpu_model ("ka11"); | |
e135f41b | 1233 | |
4d5f9b2a NC |
1234 | else if (strcmp (arg, "21") == 0) |
1235 | return set_cpu_model ("t11"); | |
e135f41b | 1236 | |
4d5f9b2a NC |
1237 | else if (strcmp (arg, "23") == 0 |
1238 | || strcmp (arg, "24") == 0) | |
1239 | return set_cpu_model ("f11"); | |
e135f41b | 1240 | |
4d5f9b2a NC |
1241 | else if (strcmp (arg, "34") == 0 |
1242 | || strcmp (arg, "34a") == 0) | |
1243 | return set_cpu_model ("kd11e"); | |
e135f41b | 1244 | |
4d5f9b2a NC |
1245 | else if (strcmp (arg, "35") == 0 |
1246 | || strcmp (arg, "40") == 0) | |
1247 | return set_cpu_model ("kd11da"); | |
e135f41b | 1248 | |
4d5f9b2a NC |
1249 | else if (strcmp (arg, "44") == 0) |
1250 | return set_cpu_model ("kd11dz"); | |
e135f41b | 1251 | |
4d5f9b2a NC |
1252 | else if (strcmp (arg, "45") == 0 |
1253 | || strcmp (arg, "50") == 0 | |
1254 | || strcmp (arg, "55") == 0 | |
1255 | || strcmp (arg, "70") == 0) | |
1256 | return set_cpu_model ("kb11"); | |
e135f41b | 1257 | |
4d5f9b2a NC |
1258 | else if (strcmp (arg, "60") == 0) |
1259 | return set_cpu_model ("kd11k"); | |
e135f41b | 1260 | |
4d5f9b2a NC |
1261 | else if (strcmp (arg, "53") == 0 |
1262 | || strcmp (arg, "73") == 0 | |
1263 | || strcmp (arg, "83") == 0 | |
1264 | || strcmp (arg, "84") == 0 | |
1265 | || strcmp (arg, "93") == 0 | |
1266 | || strcmp (arg, "94") == 0) | |
1267 | return set_cpu_model ("j11") | |
1268 | && set_option ("fpp"); | |
e135f41b | 1269 | |
e135f41b NC |
1270 | else |
1271 | return 0; | |
1272 | } | |
1273 | ||
5a38dc70 | 1274 | const char *md_shortopts = "m:"; |
e135f41b NC |
1275 | |
1276 | struct option md_longopts[] = | |
1277 | { | |
1278 | #define OPTION_CPU 257 | |
1279 | { "cpu", required_argument, NULL, OPTION_CPU }, | |
1280 | #define OPTION_MACHINE 258 | |
1281 | { "machine", required_argument, NULL, OPTION_MACHINE }, | |
1282 | #define OPTION_PIC 259 | |
1283 | { "pic", no_argument, NULL, OPTION_PIC }, | |
1284 | { NULL, no_argument, NULL, 0 } | |
1285 | }; | |
1286 | ||
07726851 | 1287 | size_t md_longopts_size = sizeof (md_longopts); |
e135f41b | 1288 | |
4d5f9b2a NC |
1289 | /* Invocation line includes a switch not recognized by the base assembler. |
1290 | See if it's a processor-specific option. */ | |
e135f41b NC |
1291 | |
1292 | int | |
17b9d67d | 1293 | md_parse_option (int c, const char *arg) |
e135f41b NC |
1294 | { |
1295 | init_defaults (); | |
1296 | ||
1297 | switch (c) | |
1298 | { | |
1299 | case 'm': | |
1300 | if (set_option (arg)) | |
1301 | return 1; | |
1302 | if (set_cpu_model (arg)) | |
1303 | return 1; | |
1304 | if (set_machine_model (arg)) | |
1305 | return 1; | |
1306 | break; | |
1307 | ||
1308 | case OPTION_CPU: | |
1309 | if (set_cpu_model (arg)) | |
1310 | return 1; | |
1311 | break; | |
1312 | ||
1313 | case OPTION_MACHINE: | |
1314 | if (set_machine_model (arg)) | |
1315 | return 1; | |
1316 | break; | |
1317 | ||
1318 | case OPTION_PIC: | |
1319 | if (set_option ("pic")) | |
1320 | return 1; | |
1321 | break; | |
1322 | ||
1323 | default: | |
1324 | break; | |
1325 | } | |
1326 | ||
e135f41b NC |
1327 | return 0; |
1328 | } | |
1329 | ||
e135f41b | 1330 | void |
4d5f9b2a | 1331 | md_show_usage (FILE *stream) |
e135f41b NC |
1332 | { |
1333 | fprintf (stream, "\ | |
1334 | \n\ | |
2b0f3761 | 1335 | PDP-11 instruction set extensions:\n\ |
e135f41b | 1336 | \n\ |
33eaf5de | 1337 | -m(no-)cis allow (disallow) commercial instruction set\n\ |
e135f41b NC |
1338 | -m(no-)csm allow (disallow) CSM instruction\n\ |
1339 | -m(no-)eis allow (disallow) full extended instruction set\n\ | |
1340 | -m(no-)fis allow (disallow) KEV11 floating-point instructions\n\ | |
1341 | -m(no-)fpp allow (disallow) FP-11 floating-point instructions\n\ | |
1342 | -m(no-)fpu allow (disallow) FP-11 floating-point instructions\n\ | |
1343 | -m(no-)limited-eis allow (disallow) limited extended instruction set\n\ | |
1344 | -m(no-)mfpt allow (disallow) processor type instruction\n\ | |
1345 | -m(no-)multiproc allow (disallow) multiprocessor instructions\n\ | |
1346 | -m(no-)mxps allow (disallow) processor status instructions\n\ | |
1347 | -m(no-)spl allow (disallow) SPL instruction\n\ | |
1348 | -m(no-)ucode allow (disallow) microcode instructions\n\ | |
1349 | -mall-extensions allow all instruction set extensions\n\ | |
1350 | (this is the default)\n\ | |
33eaf5de NC |
1351 | -mno-extensions disallow all instruction set extensions\n\ |
1352 | -pic generate position-independent code\n\ | |
e135f41b NC |
1353 | \n\ |
1354 | PDP-11 CPU model options:\n\ | |
1355 | \n\ | |
1356 | -mka11* KA11 CPU. base line instruction set only\n\ | |
1357 | -mkb11* KB11 CPU. enable full EIS and SPL\n\ | |
1358 | -mkd11a* KD11-A CPU. enable limited EIS\n\ | |
1359 | -mkd11b* KD11-B CPU. base line instruction set only\n\ | |
1360 | -mkd11d* KD11-D CPU. base line instruction set only\n\ | |
1361 | -mkd11e* KD11-E CPU. enable full EIS, MTPS, and MFPS\n\ | |
1362 | -mkd11f* KD11-F CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1363 | -mkd11h* KD11-H CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1364 | -mkd11q* KD11-Q CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1365 | -mkd11k* KD11-K CPU. enable full EIS, MTPS, MFPS, LDUB, MED,\n\ | |
1366 | XFC, and MFPT\n\ | |
1367 | -mkd11z* KD11-Z CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1368 | and CSM\n\ | |
1369 | -mf11* F11 CPU. enable full EIS, MFPS, MTPS, and MFPT\n\ | |
1370 | -mj11* J11 CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1371 | CSM, TSTSET, and WRTLCK\n\ | |
1372 | -mt11* T11 CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1373 | \n\ | |
1374 | PDP-11 machine model options:\n\ | |
1375 | \n\ | |
1376 | -m11/03 same as -mkd11f\n\ | |
1377 | -m11/04 same as -mkd11d\n\ | |
1378 | -m11/05 same as -mkd11b\n\ | |
1379 | -m11/10 same as -mkd11b\n\ | |
1380 | -m11/15 same as -mka11\n\ | |
1381 | -m11/20 same as -mka11\n\ | |
1382 | -m11/21 same as -mt11\n\ | |
1383 | -m11/23 same as -mf11\n\ | |
1384 | -m11/24 same as -mf11\n\ | |
1385 | -m11/34 same as -mkd11e\n\ | |
1386 | -m11/34a same as -mkd11e -mfpp\n\ | |
1387 | -m11/35 same as -mkd11a\n\ | |
1388 | -m11/40 same as -mkd11a\n\ | |
1389 | -m11/44 same as -mkd11z\n\ | |
1390 | -m11/45 same as -mkb11\n\ | |
1391 | -m11/50 same as -mkb11\n\ | |
1392 | -m11/53 same as -mj11\n\ | |
1393 | -m11/55 same as -mkb11\n\ | |
1394 | -m11/60 same as -mkd11k\n\ | |
1395 | -m11/70 same as -mkb11\n\ | |
1396 | -m11/73 same as -mj11\n\ | |
1397 | -m11/83 same as -mj11\n\ | |
1398 | -m11/84 same as -mj11\n\ | |
1399 | -m11/93 same as -mj11\n\ | |
1400 | -m11/94 same as -mj11\n\ | |
1401 | "); | |
1402 | } | |
1403 | ||
1404 | symbolS * | |
4d5f9b2a | 1405 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
e135f41b NC |
1406 | { |
1407 | return 0; | |
1408 | } | |
1409 | ||
1410 | valueT | |
4d5f9b2a NC |
1411 | md_section_align (segT segment ATTRIBUTE_UNUSED, |
1412 | valueT size) | |
e135f41b NC |
1413 | { |
1414 | return (size + 1) & ~1; | |
1415 | } | |
1416 | ||
1417 | long | |
4d5f9b2a | 1418 | md_pcrel_from (fixS *fixP) |
e135f41b NC |
1419 | { |
1420 | return fixP->fx_frag->fr_address + fixP->fx_where + fixP->fx_size; | |
1421 | } | |
1422 | ||
1423 | /* Translate internal representation of relocation info to BFD target | |
1424 | format. */ | |
4d5f9b2a | 1425 | |
e135f41b | 1426 | arelent * |
4d5f9b2a NC |
1427 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, |
1428 | fixS *fixp) | |
e135f41b NC |
1429 | { |
1430 | arelent *reloc; | |
1431 | bfd_reloc_code_real_type code; | |
1432 | ||
325801bd | 1433 | reloc = XNEW (arelent); |
e135f41b | 1434 | |
325801bd | 1435 | reloc->sym_ptr_ptr = XNEW (asymbol *); |
e135f41b NC |
1436 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
1437 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
1438 | ||
55cf6793 | 1439 | /* This is taken account for in md_apply_fix(). */ |
e135f41b NC |
1440 | reloc->addend = -symbol_get_bfdsym (fixp->fx_addsy)->section->vma; |
1441 | ||
10a95fcc AM |
1442 | code = fixp->fx_r_type; |
1443 | if (fixp->fx_pcrel) | |
e135f41b | 1444 | { |
10a95fcc AM |
1445 | switch (code) |
1446 | { | |
1447 | case BFD_RELOC_16: | |
1448 | code = BFD_RELOC_16_PCREL; | |
1449 | break; | |
e135f41b | 1450 | |
10a95fcc AM |
1451 | case BFD_RELOC_16_PCREL: |
1452 | break; | |
e135f41b | 1453 | |
10a95fcc AM |
1454 | default: |
1455 | BAD_CASE (code); | |
1456 | return NULL; | |
1457 | } | |
e135f41b NC |
1458 | } |
1459 | ||
1460 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
1461 | ||
1462 | if (reloc->howto == NULL) | |
1463 | { | |
1464 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
20203fb9 | 1465 | _("Can not represent %s relocation in this object file format"), |
e135f41b NC |
1466 | bfd_get_reloc_code_name (code)); |
1467 | return NULL; | |
1468 | } | |
1469 | ||
1470 | return reloc; | |
1471 | } | |
1472 | ||
1473 | void | |
4d5f9b2a | 1474 | pseudo_bss (int c ATTRIBUTE_UNUSED) |
e135f41b NC |
1475 | { |
1476 | int temp; | |
1477 | ||
1478 | temp = get_absolute_expression (); | |
1479 | subseg_set (bss_section, temp); | |
1480 | demand_empty_rest_of_line (); | |
1481 | } | |
1482 | ||
1483 | void | |
4d5f9b2a | 1484 | pseudo_even (int c ATTRIBUTE_UNUSED) |
e135f41b NC |
1485 | { |
1486 | int alignment = 1; /* 2^1 */ | |
1487 | frag_align (alignment, 0, 1); | |
1488 | record_alignment (now_seg, alignment); | |
1489 | } | |
499ac353 | 1490 | |
6d4af3c2 | 1491 | const char * |
499ac353 NC |
1492 | md_atof (int type, char * litP, int * sizeP) |
1493 | { | |
1494 | return vax_md_atof (type, litP, sizeP); | |
1495 | } |