Commit | Line | Data |
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e135f41b | 1 | /* tc-pdp11.c - pdp11-specific - |
b3adc24a | 2 | Copyright (C) 2001-2020 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 | #define TRUE 1 |
e135f41b NC |
28 | #define FALSE 0 |
29 | ||
4d5f9b2a | 30 | /* A representation for PDP-11 machine code. */ |
e135f41b NC |
31 | struct pdp11_code |
32 | { | |
6d4af3c2 | 33 | const char *error; |
e135f41b | 34 | int code; |
4d5f9b2a NC |
35 | int additional; /* Is there an additional word? */ |
36 | int word; /* Additional word, if any. */ | |
e135f41b NC |
37 | struct |
38 | { | |
39 | bfd_reloc_code_real_type type; | |
40 | expressionS exp; | |
41 | int pc_rel; | |
42 | } reloc; | |
43 | }; | |
44 | ||
4d5f9b2a NC |
45 | /* Instruction set extensions. |
46 | ||
47 | If you change this from an array to something else, please update | |
48 | the "PDP-11 instruction set extensions" comment in pdp11.h. */ | |
e135f41b NC |
49 | int pdp11_extension[PDP11_EXT_NUM]; |
50 | ||
4d5f9b2a | 51 | /* Assembly options. */ |
e135f41b NC |
52 | |
53 | #define ASM_OPT_PIC 1 | |
54 | #define ASM_OPT_NUM 2 | |
55 | ||
56 | int asm_option[ASM_OPT_NUM]; | |
57 | ||
58 | /* These chars start a comment anywhere in a source file (except inside | |
4d5f9b2a | 59 | another comment. */ |
5a38dc70 | 60 | const char comment_chars[] = "#/"; |
e135f41b | 61 | |
5cd4edbe | 62 | /* These chars only start a comment at the beginning of a line. */ |
5a38dc70 | 63 | const char line_comment_chars[] = "#/"; |
e135f41b | 64 | |
5a38dc70 | 65 | const char line_separator_chars[] = ";"; |
e135f41b | 66 | |
4d5f9b2a | 67 | /* Chars that can be used to separate mant from exp in floating point nums. */ |
5a38dc70 | 68 | const char EXP_CHARS[] = "eE"; |
e135f41b | 69 | |
4d5f9b2a NC |
70 | /* Chars that mean this number is a floating point constant. */ |
71 | /* as in 0f123.456. */ | |
72 | /* or 0H1.234E-12 (see exp chars above). */ | |
5a38dc70 | 73 | const char FLT_CHARS[] = "dDfF"; |
e135f41b NC |
74 | |
75 | void pseudo_even (int); | |
76 | void pseudo_bss (int); | |
77 | ||
5a38dc70 | 78 | const pseudo_typeS md_pseudo_table[] = |
e135f41b NC |
79 | { |
80 | { "bss", pseudo_bss, 0 }, | |
81 | { "even", pseudo_even, 0 }, | |
82 | { 0, 0, 0 }, | |
83 | }; | |
84 | ||
629310ab | 85 | static htab_t insn_hash = NULL; |
4d5f9b2a NC |
86 | \f |
87 | static int | |
17b9d67d | 88 | set_option (const char *arg) |
4d5f9b2a NC |
89 | { |
90 | int yes = 1; | |
91 | ||
92 | if (strcmp (arg, "all-extensions") == 0 | |
93 | || strcmp (arg, "all") == 0) | |
94 | { | |
95 | memset (pdp11_extension, ~0, sizeof pdp11_extension); | |
96 | pdp11_extension[PDP11_NONE] = 0; | |
97 | return 1; | |
98 | } | |
99 | else if (strcmp (arg, "no-extensions") == 0) | |
100 | { | |
101 | memset (pdp11_extension, 0, sizeof pdp11_extension); | |
102 | pdp11_extension[PDP11_BASIC] = 1; | |
103 | return 1; | |
104 | } | |
105 | ||
106 | if (strncmp (arg, "no-", 3) == 0) | |
107 | { | |
108 | yes = 0; | |
109 | arg += 3; | |
110 | } | |
111 | ||
33eaf5de | 112 | /* Commercial instructions. */ |
4d5f9b2a NC |
113 | if (strcmp (arg, "cis") == 0) |
114 | pdp11_extension[PDP11_CIS] = yes; | |
115 | /* Call supervisor mode. */ | |
116 | else if (strcmp (arg, "csm") == 0) | |
117 | pdp11_extension[PDP11_CSM] = yes; | |
118 | /* Extended instruction set. */ | |
119 | else if (strcmp (arg, "eis") == 0) | |
120 | pdp11_extension[PDP11_EIS] = pdp11_extension[PDP11_LEIS] = yes; | |
121 | /* KEV11 floating-point. */ | |
122 | else if (strcmp (arg, "fis") == 0 | |
123 | || strcmp (arg, "kev11") == 0 | |
124 | || strcmp (arg, "kev-11") == 0) | |
125 | pdp11_extension[PDP11_FIS] = yes; | |
126 | /* FP-11 floating-point. */ | |
127 | else if (strcmp (arg, "fpp") == 0 | |
128 | || strcmp (arg, "fpu") == 0 | |
129 | || strcmp (arg, "fp11") == 0 | |
130 | || strcmp (arg, "fp-11") == 0 | |
131 | || strcmp (arg, "fpj11") == 0 | |
132 | || strcmp (arg, "fp-j11") == 0 | |
133 | || strcmp (arg, "fpj-11") == 0) | |
134 | pdp11_extension[PDP11_FPP] = yes; | |
135 | /* Limited extended insns. */ | |
136 | else if (strcmp (arg, "limited-eis") == 0) | |
137 | { | |
138 | pdp11_extension[PDP11_LEIS] = yes; | |
139 | if (!pdp11_extension[PDP11_LEIS]) | |
140 | pdp11_extension[PDP11_EIS] = 0; | |
141 | } | |
142 | /* Move from processor type. */ | |
143 | else if (strcmp (arg, "mfpt") == 0) | |
144 | pdp11_extension[PDP11_MFPT] = yes; | |
145 | /* Multiprocessor insns: */ | |
146 | else if (strncmp (arg, "mproc", 5) == 0 | |
147 | /* TSTSET, WRTLCK */ | |
148 | || strncmp (arg, "multiproc", 9) == 0) | |
149 | pdp11_extension[PDP11_MPROC] = yes; | |
150 | /* Move from/to proc status. */ | |
151 | else if (strcmp (arg, "mxps") == 0) | |
152 | pdp11_extension[PDP11_MXPS] = yes; | |
153 | /* Position-independent code. */ | |
154 | else if (strcmp (arg, "pic") == 0) | |
155 | asm_option[ASM_OPT_PIC] = yes; | |
156 | /* Set priority level. */ | |
157 | else if (strcmp (arg, "spl") == 0) | |
158 | pdp11_extension[PDP11_SPL] = yes; | |
159 | /* Microcode instructions: */ | |
160 | else if (strcmp (arg, "ucode") == 0 | |
161 | /* LDUB, MED, XFC */ | |
162 | || strcmp (arg, "microcode") == 0) | |
163 | pdp11_extension[PDP11_UCODE] = yes; | |
164 | else | |
165 | return 0; | |
166 | ||
167 | return 1; | |
168 | } | |
169 | ||
170 | ||
e135f41b | 171 | static void |
4d5f9b2a | 172 | init_defaults (void) |
e135f41b NC |
173 | { |
174 | static int first = 1; | |
175 | ||
176 | if (first) | |
177 | { | |
178 | set_option ("all-extensions"); | |
179 | set_option ("pic"); | |
180 | first = 0; | |
181 | } | |
182 | } | |
183 | ||
e135f41b | 184 | void |
4d5f9b2a | 185 | md_begin (void) |
e135f41b NC |
186 | { |
187 | int i; | |
188 | ||
189 | init_defaults (); | |
190 | ||
629310ab | 191 | insn_hash = str_htab_create (); |
5cd4edbe | 192 | |
e135f41b | 193 | for (i = 0; i < pdp11_num_opcodes; i++) |
fe0e921f | 194 | str_hash_insert (insn_hash, pdp11_opcodes[i].name, pdp11_opcodes + i, 0); |
e135f41b | 195 | for (i = 0; i < pdp11_num_aliases; i++) |
fe0e921f | 196 | str_hash_insert (insn_hash, pdp11_aliases[i].name, pdp11_aliases + i, 0); |
e135f41b NC |
197 | } |
198 | ||
199 | void | |
4d5f9b2a | 200 | md_number_to_chars (char con[], valueT value, int nbytes) |
e135f41b NC |
201 | { |
202 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
4d5f9b2a | 203 | 0x12345678 is stored as "\x56\x78\x12\x34". It's |
33eaf5de | 204 | anyone's guess what 0x123456 would be stored like. */ |
e135f41b NC |
205 | |
206 | switch (nbytes) | |
207 | { | |
208 | case 0: | |
209 | break; | |
210 | case 1: | |
211 | con[0] = value & 0xff; | |
212 | break; | |
213 | case 2: | |
4d5f9b2a | 214 | con[0] = value & 0xff; |
e135f41b NC |
215 | con[1] = (value >> 8) & 0xff; |
216 | break; | |
217 | case 4: | |
218 | con[0] = (value >> 16) & 0xff; | |
219 | con[1] = (value >> 24) & 0xff; | |
4d5f9b2a | 220 | con[2] = value & 0xff; |
e135f41b NC |
221 | con[3] = (value >> 8) & 0xff; |
222 | break; | |
66e3eb08 SC |
223 | case 8: |
224 | con[0] = (value >> 48) & 0xff; | |
225 | con[1] = (value >> 56) & 0xff; | |
226 | con[2] = (value >> 32) & 0xff; | |
227 | con[3] = (value >> 40) & 0xff; | |
228 | con[4] = (value >> 16) & 0xff; | |
229 | con[5] = (value >> 24) & 0xff; | |
230 | con[6] = value & 0xff; | |
231 | con[7] = (value >> 8) & 0xff; | |
232 | break; | |
e135f41b NC |
233 | default: |
234 | BAD_CASE (nbytes); | |
5cd4edbe | 235 | } |
e135f41b NC |
236 | } |
237 | ||
238 | /* Fix up some data or instructions after we find out the value of a symbol | |
94f592af | 239 | that they reference. Knows about order of bytes in address. */ |
e135f41b | 240 | |
94f592af | 241 | void |
55cf6793 | 242 | md_apply_fix (fixS *fixP, |
4d5f9b2a NC |
243 | valueT * valP, |
244 | segT seg ATTRIBUTE_UNUSED) | |
e135f41b NC |
245 | { |
246 | valueT code; | |
247 | valueT mask; | |
94f592af | 248 | valueT val = * valP; |
e135f41b NC |
249 | char *buf; |
250 | int shift; | |
251 | int size; | |
252 | ||
253 | buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
254 | size = fixP->fx_size; | |
3ec2b351 | 255 | code = md_chars_to_number ((unsigned char *) buf, size); |
e135f41b NC |
256 | |
257 | switch (fixP->fx_r_type) | |
258 | { | |
7553c869 AM |
259 | case BFD_RELOC_8: |
260 | mask = 0xff; | |
261 | shift = 0; | |
262 | break; | |
e135f41b NC |
263 | case BFD_RELOC_16: |
264 | case BFD_RELOC_16_PCREL: | |
265 | mask = 0xffff; | |
266 | shift = 0; | |
267 | break; | |
10a95fcc AM |
268 | case BFD_RELOC_32: |
269 | mask = 0xffffffff; | |
270 | shift = 0; | |
271 | break; | |
e135f41b NC |
272 | case BFD_RELOC_PDP11_DISP_8_PCREL: |
273 | mask = 0x00ff; | |
274 | shift = 1; | |
275 | break; | |
276 | case BFD_RELOC_PDP11_DISP_6_PCREL: | |
277 | mask = 0x003f; | |
278 | shift = 1; | |
14127cc4 | 279 | val = -val; |
e135f41b NC |
280 | break; |
281 | default: | |
282 | BAD_CASE (fixP->fx_r_type); | |
283 | } | |
284 | ||
285 | if (fixP->fx_addsy != NULL) | |
94f592af | 286 | val += symbol_get_bfdsym (fixP->fx_addsy)->section->vma; |
e135f41b NC |
287 | /* *value += fixP->fx_addsy->bsym->section->vma; */ |
288 | ||
289 | code &= ~mask; | |
94f592af | 290 | code |= (val >> shift) & mask; |
e135f41b | 291 | number_to_chars_littleendian (buf, code, size); |
94f592af NC |
292 | |
293 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
294 | fixP->fx_done = 1; | |
e135f41b NC |
295 | } |
296 | ||
297 | long | |
e046cf80 | 298 | md_chars_to_number (unsigned char *con, int nbytes) |
e135f41b NC |
299 | { |
300 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
4d5f9b2a | 301 | 0x12345678 is stored as "\x56\x78\x12\x34". It's |
33eaf5de | 302 | anyone's guess what 0x123456 would be stored like. */ |
e135f41b NC |
303 | switch (nbytes) |
304 | { | |
305 | case 0: | |
306 | return 0; | |
307 | case 1: | |
308 | return con[0]; | |
309 | case 2: | |
310 | return (con[1] << BITS_PER_CHAR) | con[0]; | |
311 | case 4: | |
312 | return | |
4d5f9b2a NC |
313 | (((con[1] << BITS_PER_CHAR) | con[0]) << (2 * BITS_PER_CHAR)) |
314 | |((con[3] << BITS_PER_CHAR) | con[2]); | |
e135f41b NC |
315 | default: |
316 | BAD_CASE (nbytes); | |
317 | return 0; | |
5cd4edbe | 318 | } |
e135f41b NC |
319 | } |
320 | \f | |
321 | static char * | |
322 | skip_whitespace (char *str) | |
323 | { | |
324 | while (*str == ' ' || *str == '\t') | |
325 | str++; | |
326 | return str; | |
327 | } | |
328 | ||
329 | static char * | |
330 | find_whitespace (char *str) | |
331 | { | |
332 | while (*str != ' ' && *str != '\t' && *str != 0) | |
333 | str++; | |
334 | return str; | |
335 | } | |
336 | ||
e135f41b NC |
337 | static char * |
338 | parse_reg (char *str, struct pdp11_code *operand) | |
339 | { | |
340 | str = skip_whitespace (str); | |
3882b010 | 341 | if (TOLOWER (*str) == 'r') |
e135f41b NC |
342 | { |
343 | str++; | |
344 | switch (*str) | |
345 | { | |
346 | case '0': case '1': case '2': case '3': | |
347 | case '4': case '5': case '6': case '7': | |
348 | operand->code = *str - '0'; | |
349 | str++; | |
350 | break; | |
351 | default: | |
20203fb9 | 352 | operand->error = _("Bad register name"); |
e135f41b NC |
353 | return str - 1; |
354 | } | |
355 | } | |
4d5f9b2a NC |
356 | else if (strncmp (str, "sp", 2) == 0 |
357 | || strncmp (str, "SP", 2) == 0) | |
e135f41b NC |
358 | { |
359 | operand->code = 6; | |
360 | str += 2; | |
361 | } | |
4d5f9b2a NC |
362 | else if (strncmp (str, "pc", 2) == 0 |
363 | || strncmp (str, "PC", 2) == 0) | |
e135f41b NC |
364 | { |
365 | operand->code = 7; | |
366 | str += 2; | |
367 | } | |
368 | else | |
1c912705 SC |
369 | { |
370 | operand->error = _("Bad register name"); | |
371 | return str; | |
372 | } | |
e135f41b | 373 | |
1c912705 SC |
374 | if (ISALNUM (*str) || *str == '_' || *str == '.') |
375 | { | |
376 | operand->error = _("Bad register name"); | |
377 | str -= 2; | |
378 | } | |
379 | ||
e135f41b NC |
380 | return str; |
381 | } | |
382 | ||
383 | static char * | |
cd3cde86 | 384 | parse_ac5 (char *str, struct pdp11_code *operand) |
e135f41b NC |
385 | { |
386 | str = skip_whitespace (str); | |
4d5f9b2a NC |
387 | if (strncmp (str, "fr", 2) == 0 |
388 | || strncmp (str, "FR", 2) == 0 | |
389 | || strncmp (str, "ac", 2) == 0 | |
390 | || strncmp (str, "AC", 2) == 0) | |
e135f41b NC |
391 | { |
392 | str += 2; | |
393 | switch (*str) | |
394 | { | |
395 | case '0': case '1': case '2': case '3': | |
cd3cde86 | 396 | case '4': case '5': |
e135f41b NC |
397 | operand->code = *str - '0'; |
398 | str++; | |
399 | break; | |
400 | default: | |
20203fb9 | 401 | operand->error = _("Bad register name"); |
e135f41b NC |
402 | return str - 2; |
403 | } | |
404 | } | |
405 | else | |
406 | { | |
20203fb9 | 407 | operand->error = _("Bad register name"); |
e135f41b NC |
408 | return str; |
409 | } | |
410 | ||
411 | return str; | |
412 | } | |
413 | ||
cd3cde86 AM |
414 | static char * |
415 | parse_ac (char *str, struct pdp11_code *operand) | |
416 | { | |
417 | str = parse_ac5 (str, operand); | |
418 | if (!operand->error && operand->code > 3) | |
419 | { | |
20203fb9 | 420 | operand->error = _("Bad register name"); |
cd3cde86 AM |
421 | return str - 3; |
422 | } | |
423 | ||
424 | return str; | |
425 | } | |
426 | ||
e135f41b NC |
427 | static char * |
428 | parse_expression (char *str, struct pdp11_code *operand) | |
429 | { | |
430 | char *save_input_line_pointer; | |
431 | segT seg; | |
432 | ||
433 | save_input_line_pointer = input_line_pointer; | |
434 | input_line_pointer = str; | |
435 | seg = expression (&operand->reloc.exp); | |
436 | if (seg == NULL) | |
437 | { | |
438 | input_line_pointer = save_input_line_pointer; | |
20203fb9 | 439 | operand->error = _("Error in expression"); |
e135f41b NC |
440 | return str; |
441 | } | |
442 | ||
443 | str = input_line_pointer; | |
444 | input_line_pointer = save_input_line_pointer; | |
445 | ||
446 | operand->reloc.pc_rel = 0; | |
447 | ||
e135f41b NC |
448 | return str; |
449 | } | |
450 | ||
451 | static char * | |
452 | parse_op_no_deferred (char *str, struct pdp11_code *operand) | |
453 | { | |
cd3cde86 AM |
454 | LITTLENUM_TYPE literal_float[2]; |
455 | ||
e135f41b NC |
456 | str = skip_whitespace (str); |
457 | ||
458 | switch (*str) | |
459 | { | |
460 | case '(': /* (rn) and (rn)+ */ | |
461 | str = parse_reg (str + 1, operand); | |
462 | if (operand->error) | |
463 | return str; | |
464 | str = skip_whitespace (str); | |
465 | if (*str != ')') | |
466 | { | |
20203fb9 | 467 | operand->error = _("Missing ')'"); |
e135f41b NC |
468 | return str; |
469 | } | |
470 | str++; | |
471 | if (*str == '+') | |
472 | { | |
473 | operand->code |= 020; | |
474 | str++; | |
475 | } | |
476 | else | |
477 | { | |
478 | operand->code |= 010; | |
479 | } | |
480 | break; | |
481 | ||
4d5f9b2a NC |
482 | /* Immediate. */ |
483 | case '#': | |
5cd4edbe | 484 | case '$': |
e135f41b NC |
485 | str = parse_expression (str + 1, operand); |
486 | if (operand->error) | |
487 | return str; | |
488 | operand->additional = TRUE; | |
489 | operand->word = operand->reloc.exp.X_add_number; | |
490 | switch (operand->reloc.exp.X_op) | |
491 | { | |
492 | case O_constant: | |
493 | break; | |
494 | case O_symbol: | |
495 | case O_add: | |
496 | case O_subtract: | |
497 | operand->reloc.type = BFD_RELOC_16; | |
498 | operand->reloc.pc_rel = 0; | |
499 | break; | |
cd3cde86 AM |
500 | case O_big: |
501 | if (operand->reloc.exp.X_add_number > 0) | |
502 | { | |
20203fb9 | 503 | operand->error = _("Error in expression"); |
cd3cde86 AM |
504 | break; |
505 | } | |
4d5f9b2a | 506 | /* It's a floating literal... */ |
cd3cde86 AM |
507 | know (operand->reloc.exp.X_add_number < 0); |
508 | flonum_gen2vax ('f', &generic_floating_point_number, literal_float); | |
509 | operand->word = literal_float[0]; | |
510 | if (literal_float[1] != 0) | |
511 | as_warn (_("Low order bits truncated in immediate float operand")); | |
512 | break; | |
e135f41b | 513 | default: |
20203fb9 | 514 | operand->error = _("Error in expression"); |
e135f41b NC |
515 | break; |
516 | } | |
517 | operand->code = 027; | |
518 | break; | |
519 | ||
4d5f9b2a NC |
520 | /* label, d(rn), -(rn) */ |
521 | default: | |
e135f41b | 522 | { |
e135f41b NC |
523 | if (strncmp (str, "-(", 2) == 0) /* -(rn) */ |
524 | { | |
525 | str = parse_reg (str + 2, operand); | |
526 | if (operand->error) | |
527 | return str; | |
528 | str = skip_whitespace (str); | |
529 | if (*str != ')') | |
530 | { | |
20203fb9 | 531 | operand->error = _("Missing ')'"); |
e135f41b NC |
532 | return str; |
533 | } | |
534 | operand->code |= 040; | |
535 | str++; | |
536 | break; | |
537 | } | |
538 | ||
539 | str = parse_expression (str, operand); | |
540 | if (operand->error) | |
541 | return str; | |
542 | ||
543 | str = skip_whitespace (str); | |
544 | ||
4d5f9b2a | 545 | if (*str != '(') |
e135f41b | 546 | { |
e135f41b NC |
547 | operand->code = 067; |
548 | operand->additional = 1; | |
549 | operand->word = 0; | |
550 | operand->reloc.type = BFD_RELOC_16_PCREL; | |
551 | operand->reloc.pc_rel = 1; | |
552 | break; | |
553 | } | |
554 | ||
4d5f9b2a NC |
555 | /* d(rn) */ |
556 | str++; | |
e135f41b NC |
557 | str = parse_reg (str, operand); |
558 | if (operand->error) | |
559 | return str; | |
560 | ||
561 | str = skip_whitespace (str); | |
562 | ||
563 | if (*str != ')') | |
564 | { | |
20203fb9 | 565 | operand->error = _("Missing ')'"); |
e135f41b NC |
566 | return str; |
567 | } | |
568 | ||
569 | str++; | |
570 | operand->additional = TRUE; | |
571 | operand->code |= 060; | |
572 | switch (operand->reloc.exp.X_op) | |
573 | { | |
574 | case O_symbol: | |
bb0a86e1 NC |
575 | operand->reloc.type = BFD_RELOC_16; |
576 | operand->reloc.pc_rel = 0; | |
e135f41b NC |
577 | break; |
578 | case O_constant: | |
579 | if ((operand->code & 7) == 7) | |
580 | { | |
581 | operand->reloc.pc_rel = 1; | |
582 | operand->word = operand->reloc.exp.X_add_number; | |
583 | } | |
584 | else | |
4d5f9b2a NC |
585 | operand->word = operand->reloc.exp.X_add_number; |
586 | ||
e135f41b NC |
587 | break; |
588 | default: | |
589 | BAD_CASE (operand->reloc.exp.X_op); | |
590 | } | |
591 | break; | |
592 | } | |
593 | } | |
594 | ||
595 | return str; | |
596 | } | |
597 | ||
598 | static char * | |
cd3cde86 | 599 | parse_op_noreg (char *str, struct pdp11_code *operand) |
e135f41b NC |
600 | { |
601 | str = skip_whitespace (str); | |
e135f41b NC |
602 | operand->error = NULL; |
603 | ||
604 | if (*str == '@' || *str == '*') | |
605 | { | |
3cf2b669 JPC |
606 | /* @(Rn) == @0(Rn): Mode 7, Indexed deferred. |
607 | Check for auto-increment deferred. */ | |
608 | if (str[1] == '(' | |
609 | && str[2] != 0 | |
610 | && str[3] != 0 | |
611 | && str[4] != 0 | |
612 | && str[5] != '+') | |
613 | { | |
614 | /* Change implied to explicit index deferred. */ | |
615 | *str = '0'; | |
616 | str = parse_op_no_deferred (str, operand); | |
617 | } | |
618 | else | |
8f9ea98b JPC |
619 | { |
620 | /* @Rn == (Rn): Register deferred. */ | |
621 | str = parse_reg (str + 1, operand); | |
622 | ||
623 | /* Not @Rn */ | |
624 | if (operand->error) | |
625 | { | |
626 | operand->error = NULL; | |
627 | str = parse_op_no_deferred (str, operand); | |
628 | } | |
629 | } | |
3cf2b669 | 630 | |
e135f41b NC |
631 | if (operand->error) |
632 | return str; | |
8f9ea98b | 633 | |
e135f41b NC |
634 | operand->code |= 010; |
635 | } | |
636 | else | |
637 | str = parse_op_no_deferred (str, operand); | |
638 | ||
639 | return str; | |
640 | } | |
641 | ||
cd3cde86 AM |
642 | static char * |
643 | parse_op (char *str, struct pdp11_code *operand) | |
644 | { | |
645 | str = skip_whitespace (str); | |
646 | ||
647 | str = parse_reg (str, operand); | |
648 | if (!operand->error) | |
649 | return str; | |
650 | ||
651 | operand->error = NULL; | |
652 | parse_ac5 (str, operand); | |
653 | if (!operand->error) | |
654 | { | |
20203fb9 | 655 | operand->error = _("Float AC not legal as integer operand"); |
cd3cde86 AM |
656 | return str; |
657 | } | |
5d6255fe | 658 | |
cd3cde86 AM |
659 | return parse_op_noreg (str, operand); |
660 | } | |
661 | ||
662 | static char * | |
663 | parse_fop (char *str, struct pdp11_code *operand) | |
664 | { | |
665 | str = skip_whitespace (str); | |
666 | ||
667 | str = parse_ac5 (str, operand); | |
668 | if (!operand->error) | |
669 | return str; | |
670 | ||
671 | operand->error = NULL; | |
672 | parse_reg (str, operand); | |
673 | if (!operand->error) | |
674 | { | |
20203fb9 | 675 | operand->error = _("General register not legal as float operand"); |
cd3cde86 AM |
676 | return str; |
677 | } | |
678 | ||
679 | return parse_op_noreg (str, operand); | |
680 | } | |
681 | ||
e135f41b NC |
682 | static char * |
683 | parse_separator (char *str, int *error) | |
684 | { | |
685 | str = skip_whitespace (str); | |
686 | *error = (*str != ','); | |
687 | if (!*error) | |
688 | str++; | |
689 | return str; | |
690 | } | |
691 | ||
692 | void | |
4d5f9b2a | 693 | md_assemble (char *instruction_string) |
e135f41b | 694 | { |
5a38dc70 | 695 | const struct pdp11_opcode *op; |
e135f41b NC |
696 | struct pdp11_code insn, op1, op2; |
697 | int error; | |
698 | int size; | |
6d4af3c2 | 699 | const char *err = NULL; |
e135f41b NC |
700 | char *str; |
701 | char *p; | |
702 | char c; | |
703 | ||
704 | str = skip_whitespace (instruction_string); | |
705 | p = find_whitespace (str); | |
706 | if (p - str == 0) | |
707 | { | |
20203fb9 | 708 | as_bad (_("No instruction found")); |
e135f41b NC |
709 | return; |
710 | } | |
711 | ||
712 | c = *p; | |
713 | *p = '\0'; | |
629310ab | 714 | op = (struct pdp11_opcode *)str_hash_find (insn_hash, str); |
e135f41b NC |
715 | *p = c; |
716 | if (op == 0) | |
717 | { | |
cd3cde86 | 718 | as_bad (_("Unknown instruction '%s'"), str); |
e135f41b NC |
719 | return; |
720 | } | |
721 | ||
722 | if (!pdp11_extension[op->extension]) | |
723 | { | |
20203fb9 | 724 | as_warn (_("Unsupported instruction set extension: %s"), op->name); |
e135f41b NC |
725 | return; |
726 | } | |
727 | ||
728 | insn.error = NULL; | |
729 | insn.code = op->opcode; | |
730 | insn.reloc.type = BFD_RELOC_NONE; | |
731 | op1.error = NULL; | |
732 | op1.additional = FALSE; | |
733 | op1.reloc.type = BFD_RELOC_NONE; | |
734 | op2.error = NULL; | |
735 | op2.additional = FALSE; | |
736 | op2.reloc.type = BFD_RELOC_NONE; | |
737 | ||
738 | str = p; | |
739 | size = 2; | |
740 | ||
741 | switch (op->type) | |
742 | { | |
743 | case PDP11_OPCODE_NO_OPS: | |
744 | str = skip_whitespace (str); | |
e135f41b NC |
745 | break; |
746 | ||
747 | case PDP11_OPCODE_IMM3: | |
748 | case PDP11_OPCODE_IMM6: | |
749 | case PDP11_OPCODE_IMM8: | |
750 | str = skip_whitespace (str); | |
751 | if (*str == '#' || *str == '$') | |
752 | str++; | |
753 | str = parse_expression (str, &op1); | |
754 | if (op1.error) | |
755 | break; | |
cd3cde86 AM |
756 | if (op1.reloc.exp.X_op != O_constant || op1.reloc.type != BFD_RELOC_NONE) |
757 | { | |
20203fb9 | 758 | op1.error = _("operand is not an absolute constant"); |
cd3cde86 AM |
759 | break; |
760 | } | |
e135f41b NC |
761 | switch (op->type) |
762 | { | |
763 | case PDP11_OPCODE_IMM3: | |
cd3cde86 | 764 | if (op1.reloc.exp.X_add_number & ~7) |
e135f41b | 765 | { |
20203fb9 | 766 | op1.error = _("3-bit immediate out of range"); |
e135f41b NC |
767 | break; |
768 | } | |
769 | break; | |
770 | case PDP11_OPCODE_IMM6: | |
cd3cde86 | 771 | if (op1.reloc.exp.X_add_number & ~0x3f) |
e135f41b | 772 | { |
20203fb9 | 773 | op1.error = _("6-bit immediate out of range"); |
e135f41b NC |
774 | break; |
775 | } | |
776 | break; | |
777 | case PDP11_OPCODE_IMM8: | |
cd3cde86 | 778 | if (op1.reloc.exp.X_add_number & ~0xff) |
e135f41b | 779 | { |
20203fb9 | 780 | op1.error = _("8-bit immediate out of range"); |
e135f41b NC |
781 | break; |
782 | } | |
783 | break; | |
784 | } | |
cd3cde86 | 785 | insn.code |= op1.reloc.exp.X_add_number; |
e135f41b NC |
786 | break; |
787 | ||
788 | case PDP11_OPCODE_DISPL: | |
789 | { | |
d3ce72d0 NC |
790 | char *new_pointer; |
791 | new_pointer = parse_expression (str, &op1); | |
e135f41b NC |
792 | op1.code = 0; |
793 | op1.reloc.pc_rel = 1; | |
794 | op1.reloc.type = BFD_RELOC_PDP11_DISP_8_PCREL; | |
795 | if (op1.reloc.exp.X_op != O_symbol) | |
796 | { | |
20203fb9 | 797 | op1.error = _("Symbol expected"); |
e135f41b NC |
798 | break; |
799 | } | |
800 | if (op1.code & ~0xff) | |
801 | { | |
20203fb9 | 802 | err = _("8-bit displacement out of range"); |
e135f41b NC |
803 | break; |
804 | } | |
d3ce72d0 | 805 | str = new_pointer; |
e135f41b NC |
806 | insn.code |= op1.code; |
807 | insn.reloc = op1.reloc; | |
808 | } | |
809 | break; | |
810 | ||
811 | case PDP11_OPCODE_REG: | |
812 | str = parse_reg (str, &op1); | |
813 | if (op1.error) | |
814 | break; | |
815 | insn.code |= op1.code; | |
816 | break; | |
817 | ||
818 | case PDP11_OPCODE_OP: | |
819 | str = parse_op (str, &op1); | |
820 | if (op1.error) | |
821 | break; | |
822 | insn.code |= op1.code; | |
823 | if (op1.additional) | |
824 | size += 2; | |
825 | break; | |
826 | ||
cd3cde86 AM |
827 | case PDP11_OPCODE_FOP: |
828 | str = parse_fop (str, &op1); | |
829 | if (op1.error) | |
830 | break; | |
831 | insn.code |= op1.code; | |
832 | if (op1.additional) | |
833 | size += 2; | |
834 | break; | |
835 | ||
e135f41b NC |
836 | case PDP11_OPCODE_REG_OP: |
837 | str = parse_reg (str, &op2); | |
838 | if (op2.error) | |
839 | break; | |
840 | insn.code |= op2.code << 6; | |
841 | str = parse_separator (str, &error); | |
842 | if (error) | |
843 | { | |
20203fb9 | 844 | op2.error = _("Missing ','"); |
e135f41b NC |
845 | break; |
846 | } | |
847 | str = parse_op (str, &op1); | |
848 | if (op1.error) | |
849 | break; | |
850 | insn.code |= op1.code; | |
851 | if (op1.additional) | |
852 | size += 2; | |
853 | break; | |
854 | ||
855 | case PDP11_OPCODE_REG_OP_REV: | |
856 | str = parse_op (str, &op1); | |
857 | if (op1.error) | |
858 | break; | |
859 | insn.code |= op1.code; | |
860 | if (op1.additional) | |
861 | size += 2; | |
862 | str = parse_separator (str, &error); | |
863 | if (error) | |
864 | { | |
20203fb9 | 865 | op2.error = _("Missing ','"); |
e135f41b NC |
866 | break; |
867 | } | |
868 | str = parse_reg (str, &op2); | |
869 | if (op2.error) | |
870 | break; | |
871 | insn.code |= op2.code << 6; | |
872 | break; | |
873 | ||
cd3cde86 AM |
874 | case PDP11_OPCODE_AC_FOP: |
875 | str = parse_ac (str, &op2); | |
876 | if (op2.error) | |
877 | break; | |
878 | insn.code |= op2.code << 6; | |
879 | str = parse_separator (str, &error); | |
880 | if (error) | |
881 | { | |
20203fb9 | 882 | op1.error = _("Missing ','"); |
cd3cde86 AM |
883 | break; |
884 | } | |
885 | str = parse_fop (str, &op1); | |
886 | if (op1.error) | |
887 | break; | |
888 | insn.code |= op1.code; | |
889 | if (op1.additional) | |
890 | size += 2; | |
891 | break; | |
892 | ||
893 | case PDP11_OPCODE_FOP_AC: | |
894 | str = parse_fop (str, &op1); | |
895 | if (op1.error) | |
896 | break; | |
897 | insn.code |= op1.code; | |
898 | if (op1.additional) | |
899 | size += 2; | |
900 | str = parse_separator (str, &error); | |
901 | if (error) | |
902 | { | |
20203fb9 | 903 | op1.error = _("Missing ','"); |
cd3cde86 AM |
904 | break; |
905 | } | |
906 | str = parse_ac (str, &op2); | |
907 | if (op2.error) | |
908 | break; | |
909 | insn.code |= op2.code << 6; | |
910 | break; | |
911 | ||
e135f41b NC |
912 | case PDP11_OPCODE_AC_OP: |
913 | str = parse_ac (str, &op2); | |
914 | if (op2.error) | |
915 | break; | |
916 | insn.code |= op2.code << 6; | |
917 | str = parse_separator (str, &error); | |
918 | if (error) | |
919 | { | |
20203fb9 | 920 | op1.error = _("Missing ','"); |
e135f41b NC |
921 | break; |
922 | } | |
923 | str = parse_op (str, &op1); | |
924 | if (op1.error) | |
925 | break; | |
926 | insn.code |= op1.code; | |
927 | if (op1.additional) | |
928 | size += 2; | |
929 | break; | |
930 | ||
cd3cde86 AM |
931 | case PDP11_OPCODE_OP_AC: |
932 | str = parse_op (str, &op1); | |
933 | if (op1.error) | |
934 | break; | |
935 | insn.code |= op1.code; | |
936 | if (op1.additional) | |
937 | size += 2; | |
938 | str = parse_separator (str, &error); | |
939 | if (error) | |
940 | { | |
20203fb9 | 941 | op1.error = _("Missing ','"); |
cd3cde86 AM |
942 | break; |
943 | } | |
944 | str = parse_ac (str, &op2); | |
945 | if (op2.error) | |
946 | break; | |
947 | insn.code |= op2.code << 6; | |
948 | break; | |
949 | ||
e135f41b NC |
950 | case PDP11_OPCODE_OP_OP: |
951 | str = parse_op (str, &op1); | |
952 | if (op1.error) | |
953 | break; | |
954 | insn.code |= op1.code << 6; | |
955 | if (op1.additional) | |
956 | size += 2; | |
957 | str = parse_separator (str, &error); | |
958 | if (error) | |
959 | { | |
20203fb9 | 960 | op2.error = _("Missing ','"); |
e135f41b NC |
961 | break; |
962 | } | |
963 | str = parse_op (str, &op2); | |
964 | if (op2.error) | |
965 | break; | |
966 | insn.code |= op2.code; | |
967 | if (op2.additional) | |
968 | size += 2; | |
969 | break; | |
970 | ||
971 | case PDP11_OPCODE_REG_DISPL: | |
972 | { | |
d3ce72d0 | 973 | char *new_pointer; |
e135f41b NC |
974 | str = parse_reg (str, &op2); |
975 | if (op2.error) | |
976 | break; | |
977 | insn.code |= op2.code << 6; | |
978 | str = parse_separator (str, &error); | |
979 | if (error) | |
980 | { | |
20203fb9 | 981 | op1.error = _("Missing ','"); |
e135f41b NC |
982 | break; |
983 | } | |
d3ce72d0 | 984 | new_pointer = parse_expression (str, &op1); |
e135f41b NC |
985 | op1.code = 0; |
986 | op1.reloc.pc_rel = 1; | |
987 | op1.reloc.type = BFD_RELOC_PDP11_DISP_6_PCREL; | |
988 | if (op1.reloc.exp.X_op != O_symbol) | |
989 | { | |
20203fb9 | 990 | op1.error = _("Symbol expected"); |
e135f41b NC |
991 | break; |
992 | } | |
993 | if (op1.code & ~0x3f) | |
994 | { | |
20203fb9 | 995 | err = _("6-bit displacement out of range"); |
e135f41b NC |
996 | break; |
997 | } | |
d3ce72d0 | 998 | str = new_pointer; |
e135f41b NC |
999 | insn.code |= op1.code; |
1000 | insn.reloc = op1.reloc; | |
1001 | } | |
1002 | break; | |
5cd4edbe | 1003 | |
e135f41b NC |
1004 | default: |
1005 | BAD_CASE (op->type); | |
1006 | } | |
1007 | ||
1008 | if (op1.error) | |
1009 | err = op1.error; | |
1010 | else if (op2.error) | |
1011 | err = op2.error; | |
1012 | else | |
1013 | { | |
1014 | str = skip_whitespace (str); | |
1015 | if (*str) | |
20203fb9 | 1016 | err = _("Too many operands"); |
e135f41b NC |
1017 | } |
1018 | ||
1019 | { | |
1020 | char *to = NULL; | |
5cd4edbe | 1021 | |
e135f41b NC |
1022 | if (err) |
1023 | { | |
20203fb9 | 1024 | as_bad ("%s", err); |
e135f41b NC |
1025 | return; |
1026 | } | |
1027 | ||
1028 | to = frag_more (size); | |
1029 | ||
1030 | md_number_to_chars (to, insn.code, 2); | |
1031 | if (insn.reloc.type != BFD_RELOC_NONE) | |
1032 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1033 | &insn.reloc.exp, insn.reloc.pc_rel, insn.reloc.type); | |
1034 | to += 2; | |
1035 | ||
1036 | if (op1.additional) | |
1037 | { | |
1038 | md_number_to_chars (to, op1.word, 2); | |
1039 | if (op1.reloc.type != BFD_RELOC_NONE) | |
1040 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1041 | &op1.reloc.exp, op1.reloc.pc_rel, op1.reloc.type); | |
1042 | to += 2; | |
1043 | } | |
1044 | ||
1045 | if (op2.additional) | |
1046 | { | |
1047 | md_number_to_chars (to, op2.word, 2); | |
1048 | if (op2.reloc.type != BFD_RELOC_NONE) | |
1049 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1050 | &op2.reloc.exp, op2.reloc.pc_rel, op2.reloc.type); | |
1051 | } | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | int | |
4d5f9b2a NC |
1056 | md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED, |
1057 | segT segment ATTRIBUTE_UNUSED) | |
e135f41b NC |
1058 | { |
1059 | return 0; | |
1060 | } | |
1061 | ||
1062 | void | |
4d5f9b2a NC |
1063 | md_convert_frag (bfd *headers ATTRIBUTE_UNUSED, |
1064 | segT seg ATTRIBUTE_UNUSED, | |
1065 | fragS *fragP ATTRIBUTE_UNUSED) | |
e135f41b NC |
1066 | { |
1067 | } | |
1068 | ||
2b4f075a HPN |
1069 | int md_short_jump_size = 2; |
1070 | int md_long_jump_size = 4; | |
e135f41b NC |
1071 | |
1072 | void | |
4d5f9b2a NC |
1073 | md_create_short_jump (char *ptr ATTRIBUTE_UNUSED, |
1074 | addressT from_addr ATTRIBUTE_UNUSED, | |
1075 | addressT to_addr ATTRIBUTE_UNUSED, | |
1076 | fragS *frag ATTRIBUTE_UNUSED, | |
1077 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
e135f41b NC |
1078 | { |
1079 | } | |
1080 | ||
1081 | void | |
4d5f9b2a NC |
1082 | md_create_long_jump (char *ptr ATTRIBUTE_UNUSED, |
1083 | addressT from_addr ATTRIBUTE_UNUSED, | |
1084 | addressT to_addr ATTRIBUTE_UNUSED, | |
1085 | fragS *frag ATTRIBUTE_UNUSED, | |
1086 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
e135f41b NC |
1087 | { |
1088 | } | |
1089 | ||
1090 | static int | |
17b9d67d | 1091 | set_cpu_model (const char *arg) |
e135f41b NC |
1092 | { |
1093 | char buf[4]; | |
1094 | char *model = buf; | |
1095 | ||
1096 | if (arg[0] == 'k') | |
1097 | arg++; | |
1098 | ||
1099 | *model++ = *arg++; | |
1100 | ||
1101 | if (strchr ("abdx", model[-1]) == NULL) | |
1102 | return 0; | |
1103 | ||
1104 | if (model[-1] == 'd') | |
1105 | { | |
4d5f9b2a | 1106 | if (arg[0] == 'f' || arg[0] == 'j') |
e135f41b NC |
1107 | model[-1] = *arg++; |
1108 | } | |
1109 | else if (model[-1] == 'x') | |
1110 | { | |
1111 | if (arg[0] == 't') | |
1112 | model[-1] = *arg++; | |
1113 | } | |
1114 | ||
1115 | if (arg[0] == '-') | |
1116 | arg++; | |
1117 | ||
1118 | if (strncmp (arg, "11", 2) != 0) | |
1119 | return 0; | |
1120 | arg += 2; | |
1121 | ||
1122 | if (arg[0] == '-') | |
1123 | { | |
1124 | if (*++arg == 0) | |
1125 | return 0; | |
1126 | } | |
1127 | ||
4d5f9b2a | 1128 | /* Allow up to two revision letters. */ |
e135f41b NC |
1129 | if (arg[0] != 0) |
1130 | *model++ = *arg++; | |
1131 | if (arg[0] != 0) | |
1132 | *model++ = *arg++; | |
1133 | ||
1134 | *model++ = 0; | |
1135 | ||
1136 | set_option ("no-extensions"); | |
1137 | ||
4d5f9b2a NC |
1138 | /* KA11 (11/15/20). */ |
1139 | if (strncmp (buf, "a", 1) == 0) | |
1140 | return 1; /* No extensions. */ | |
e135f41b | 1141 | |
4d5f9b2a NC |
1142 | /* KB11 (11/45/50/55/70). */ |
1143 | else if (strncmp (buf, "b", 1) == 0) | |
1144 | return set_option ("eis") && set_option ("spl"); | |
e135f41b | 1145 | |
4d5f9b2a NC |
1146 | /* KD11-A (11/35/40). */ |
1147 | else if (strncmp (buf, "da", 2) == 0) | |
e135f41b NC |
1148 | return set_option ("limited-eis"); |
1149 | ||
4d5f9b2a NC |
1150 | /* KD11-B (11/05/10). */ |
1151 | else if (strncmp (buf, "db", 2) == 0 | |
1152 | /* KD11-D (11/04). */ | |
1153 | || strncmp (buf, "dd", 2) == 0) | |
e135f41b NC |
1154 | return 1; /* no extensions */ |
1155 | ||
4d5f9b2a NC |
1156 | /* KD11-E (11/34). */ |
1157 | else if (strncmp (buf, "de", 2) == 0) | |
1158 | return set_option ("eis") && set_option ("mxps"); | |
1159 | ||
1160 | /* KD11-F (11/03). */ | |
1161 | else if (strncmp (buf, "df", 2) == 0 | |
1162 | /* KD11-H (11/03). */ | |
1163 | || strncmp (buf, "dh", 2) == 0 | |
1164 | /* KD11-Q (11/03). */ | |
1165 | || strncmp (buf, "dq", 2) == 0) | |
1166 | return set_option ("limited-eis") && set_option ("mxps"); | |
1167 | ||
1168 | /* KD11-K (11/60). */ | |
1169 | else if (strncmp (buf, "dk", 2) == 0) | |
1170 | return set_option ("eis") | |
1171 | && set_option ("mxps") | |
1172 | && set_option ("ucode"); | |
1173 | ||
1174 | /* KD11-Z (11/44). */ | |
1175 | else if (strncmp (buf, "dz", 2) == 0) | |
1176 | return set_option ("csm") | |
1177 | && set_option ("eis") | |
1178 | && set_option ("mfpt") | |
1179 | && set_option ("mxps") | |
1180 | && set_option ("spl"); | |
1181 | ||
1182 | /* F11 (11/23/24). */ | |
1183 | else if (strncmp (buf, "f", 1) == 0) | |
1184 | return set_option ("eis") | |
1185 | && set_option ("mfpt") | |
1186 | && set_option ("mxps"); | |
1187 | ||
1188 | /* J11 (11/53/73/83/84/93/94). */ | |
1189 | else if (strncmp (buf, "j", 1) == 0) | |
1190 | return set_option ("csm") | |
1191 | && set_option ("eis") | |
1192 | && set_option ("mfpt") | |
1193 | && set_option ("multiproc") | |
1194 | && set_option ("mxps") | |
1195 | && set_option ("spl"); | |
1196 | ||
1197 | /* T11 (11/21). */ | |
1198 | else if (strncmp (buf, "t", 1) == 0) | |
1199 | return set_option ("limited-eis") | |
1200 | && set_option ("mxps"); | |
e135f41b NC |
1201 | |
1202 | else | |
1203 | return 0; | |
1204 | } | |
1205 | ||
1206 | static int | |
17b9d67d | 1207 | set_machine_model (const char *arg) |
e135f41b | 1208 | { |
4d5f9b2a NC |
1209 | if (strncmp (arg, "pdp-11/", 7) != 0 |
1210 | && strncmp (arg, "pdp11/", 6) != 0 | |
1211 | && strncmp (arg, "11/", 3) != 0) | |
e135f41b NC |
1212 | return 0; |
1213 | ||
1214 | if (strncmp (arg, "pdp", 3) == 0) | |
1215 | arg += 3; | |
1216 | if (arg[0] == '-') | |
1217 | arg++; | |
1218 | if (strncmp (arg, "11/", 3) == 0) | |
1219 | arg += 3; | |
1220 | ||
4d5f9b2a NC |
1221 | if (strcmp (arg, "03") == 0) |
1222 | return set_cpu_model ("kd11f"); | |
1223 | ||
1224 | else if (strcmp (arg, "04") == 0) | |
1225 | return set_cpu_model ("kd11d"); | |
e135f41b | 1226 | |
4d5f9b2a NC |
1227 | else if (strcmp (arg, "05") == 0 |
1228 | || strcmp (arg, "10") == 0) | |
1229 | return set_cpu_model ("kd11b"); | |
e135f41b | 1230 | |
4d5f9b2a NC |
1231 | else if (strcmp (arg, "15") == 0 |
1232 | || strcmp (arg, "20") == 0) | |
1233 | return set_cpu_model ("ka11"); | |
e135f41b | 1234 | |
4d5f9b2a NC |
1235 | else if (strcmp (arg, "21") == 0) |
1236 | return set_cpu_model ("t11"); | |
e135f41b | 1237 | |
4d5f9b2a NC |
1238 | else if (strcmp (arg, "23") == 0 |
1239 | || strcmp (arg, "24") == 0) | |
1240 | return set_cpu_model ("f11"); | |
e135f41b | 1241 | |
4d5f9b2a NC |
1242 | else if (strcmp (arg, "34") == 0 |
1243 | || strcmp (arg, "34a") == 0) | |
1244 | return set_cpu_model ("kd11e"); | |
e135f41b | 1245 | |
4d5f9b2a NC |
1246 | else if (strcmp (arg, "35") == 0 |
1247 | || strcmp (arg, "40") == 0) | |
1248 | return set_cpu_model ("kd11da"); | |
e135f41b | 1249 | |
4d5f9b2a NC |
1250 | else if (strcmp (arg, "44") == 0) |
1251 | return set_cpu_model ("kd11dz"); | |
e135f41b | 1252 | |
4d5f9b2a NC |
1253 | else if (strcmp (arg, "45") == 0 |
1254 | || strcmp (arg, "50") == 0 | |
1255 | || strcmp (arg, "55") == 0 | |
1256 | || strcmp (arg, "70") == 0) | |
1257 | return set_cpu_model ("kb11"); | |
e135f41b | 1258 | |
4d5f9b2a NC |
1259 | else if (strcmp (arg, "60") == 0) |
1260 | return set_cpu_model ("kd11k"); | |
e135f41b | 1261 | |
4d5f9b2a NC |
1262 | else if (strcmp (arg, "53") == 0 |
1263 | || strcmp (arg, "73") == 0 | |
1264 | || strcmp (arg, "83") == 0 | |
1265 | || strcmp (arg, "84") == 0 | |
1266 | || strcmp (arg, "93") == 0 | |
1267 | || strcmp (arg, "94") == 0) | |
1268 | return set_cpu_model ("j11") | |
1269 | && set_option ("fpp"); | |
e135f41b | 1270 | |
e135f41b NC |
1271 | else |
1272 | return 0; | |
1273 | } | |
1274 | ||
5a38dc70 | 1275 | const char *md_shortopts = "m:"; |
e135f41b NC |
1276 | |
1277 | struct option md_longopts[] = | |
1278 | { | |
1279 | #define OPTION_CPU 257 | |
1280 | { "cpu", required_argument, NULL, OPTION_CPU }, | |
1281 | #define OPTION_MACHINE 258 | |
1282 | { "machine", required_argument, NULL, OPTION_MACHINE }, | |
1283 | #define OPTION_PIC 259 | |
1284 | { "pic", no_argument, NULL, OPTION_PIC }, | |
1285 | { NULL, no_argument, NULL, 0 } | |
1286 | }; | |
1287 | ||
07726851 | 1288 | size_t md_longopts_size = sizeof (md_longopts); |
e135f41b | 1289 | |
4d5f9b2a NC |
1290 | /* Invocation line includes a switch not recognized by the base assembler. |
1291 | See if it's a processor-specific option. */ | |
e135f41b NC |
1292 | |
1293 | int | |
17b9d67d | 1294 | md_parse_option (int c, const char *arg) |
e135f41b NC |
1295 | { |
1296 | init_defaults (); | |
1297 | ||
1298 | switch (c) | |
1299 | { | |
1300 | case 'm': | |
1301 | if (set_option (arg)) | |
1302 | return 1; | |
1303 | if (set_cpu_model (arg)) | |
1304 | return 1; | |
1305 | if (set_machine_model (arg)) | |
1306 | return 1; | |
1307 | break; | |
1308 | ||
1309 | case OPTION_CPU: | |
1310 | if (set_cpu_model (arg)) | |
1311 | return 1; | |
1312 | break; | |
1313 | ||
1314 | case OPTION_MACHINE: | |
1315 | if (set_machine_model (arg)) | |
1316 | return 1; | |
1317 | break; | |
1318 | ||
1319 | case OPTION_PIC: | |
1320 | if (set_option ("pic")) | |
1321 | return 1; | |
1322 | break; | |
1323 | ||
1324 | default: | |
1325 | break; | |
1326 | } | |
1327 | ||
e135f41b NC |
1328 | return 0; |
1329 | } | |
1330 | ||
e135f41b | 1331 | void |
4d5f9b2a | 1332 | md_show_usage (FILE *stream) |
e135f41b NC |
1333 | { |
1334 | fprintf (stream, "\ | |
1335 | \n\ | |
2b0f3761 | 1336 | PDP-11 instruction set extensions:\n\ |
e135f41b | 1337 | \n\ |
33eaf5de | 1338 | -m(no-)cis allow (disallow) commercial instruction set\n\ |
e135f41b NC |
1339 | -m(no-)csm allow (disallow) CSM instruction\n\ |
1340 | -m(no-)eis allow (disallow) full extended instruction set\n\ | |
1341 | -m(no-)fis allow (disallow) KEV11 floating-point instructions\n\ | |
1342 | -m(no-)fpp allow (disallow) FP-11 floating-point instructions\n\ | |
1343 | -m(no-)fpu allow (disallow) FP-11 floating-point instructions\n\ | |
1344 | -m(no-)limited-eis allow (disallow) limited extended instruction set\n\ | |
1345 | -m(no-)mfpt allow (disallow) processor type instruction\n\ | |
1346 | -m(no-)multiproc allow (disallow) multiprocessor instructions\n\ | |
1347 | -m(no-)mxps allow (disallow) processor status instructions\n\ | |
1348 | -m(no-)spl allow (disallow) SPL instruction\n\ | |
1349 | -m(no-)ucode allow (disallow) microcode instructions\n\ | |
1350 | -mall-extensions allow all instruction set extensions\n\ | |
1351 | (this is the default)\n\ | |
33eaf5de NC |
1352 | -mno-extensions disallow all instruction set extensions\n\ |
1353 | -pic generate position-independent code\n\ | |
e135f41b NC |
1354 | \n\ |
1355 | PDP-11 CPU model options:\n\ | |
1356 | \n\ | |
1357 | -mka11* KA11 CPU. base line instruction set only\n\ | |
1358 | -mkb11* KB11 CPU. enable full EIS and SPL\n\ | |
1359 | -mkd11a* KD11-A CPU. enable limited EIS\n\ | |
1360 | -mkd11b* KD11-B CPU. base line instruction set only\n\ | |
1361 | -mkd11d* KD11-D CPU. base line instruction set only\n\ | |
1362 | -mkd11e* KD11-E CPU. enable full EIS, MTPS, and MFPS\n\ | |
1363 | -mkd11f* KD11-F CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1364 | -mkd11h* KD11-H CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1365 | -mkd11q* KD11-Q CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1366 | -mkd11k* KD11-K CPU. enable full EIS, MTPS, MFPS, LDUB, MED,\n\ | |
1367 | XFC, and MFPT\n\ | |
1368 | -mkd11z* KD11-Z CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1369 | and CSM\n\ | |
1370 | -mf11* F11 CPU. enable full EIS, MFPS, MTPS, and MFPT\n\ | |
1371 | -mj11* J11 CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1372 | CSM, TSTSET, and WRTLCK\n\ | |
1373 | -mt11* T11 CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1374 | \n\ | |
1375 | PDP-11 machine model options:\n\ | |
1376 | \n\ | |
1377 | -m11/03 same as -mkd11f\n\ | |
1378 | -m11/04 same as -mkd11d\n\ | |
1379 | -m11/05 same as -mkd11b\n\ | |
1380 | -m11/10 same as -mkd11b\n\ | |
1381 | -m11/15 same as -mka11\n\ | |
1382 | -m11/20 same as -mka11\n\ | |
1383 | -m11/21 same as -mt11\n\ | |
1384 | -m11/23 same as -mf11\n\ | |
1385 | -m11/24 same as -mf11\n\ | |
1386 | -m11/34 same as -mkd11e\n\ | |
1387 | -m11/34a same as -mkd11e -mfpp\n\ | |
1388 | -m11/35 same as -mkd11a\n\ | |
1389 | -m11/40 same as -mkd11a\n\ | |
1390 | -m11/44 same as -mkd11z\n\ | |
1391 | -m11/45 same as -mkb11\n\ | |
1392 | -m11/50 same as -mkb11\n\ | |
1393 | -m11/53 same as -mj11\n\ | |
1394 | -m11/55 same as -mkb11\n\ | |
1395 | -m11/60 same as -mkd11k\n\ | |
1396 | -m11/70 same as -mkb11\n\ | |
1397 | -m11/73 same as -mj11\n\ | |
1398 | -m11/83 same as -mj11\n\ | |
1399 | -m11/84 same as -mj11\n\ | |
1400 | -m11/93 same as -mj11\n\ | |
1401 | -m11/94 same as -mj11\n\ | |
1402 | "); | |
1403 | } | |
1404 | ||
1405 | symbolS * | |
4d5f9b2a | 1406 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
e135f41b NC |
1407 | { |
1408 | return 0; | |
1409 | } | |
1410 | ||
1411 | valueT | |
4d5f9b2a NC |
1412 | md_section_align (segT segment ATTRIBUTE_UNUSED, |
1413 | valueT size) | |
e135f41b NC |
1414 | { |
1415 | return (size + 1) & ~1; | |
1416 | } | |
1417 | ||
1418 | long | |
4d5f9b2a | 1419 | md_pcrel_from (fixS *fixP) |
e135f41b NC |
1420 | { |
1421 | return fixP->fx_frag->fr_address + fixP->fx_where + fixP->fx_size; | |
1422 | } | |
1423 | ||
1424 | /* Translate internal representation of relocation info to BFD target | |
1425 | format. */ | |
4d5f9b2a | 1426 | |
e135f41b | 1427 | arelent * |
4d5f9b2a NC |
1428 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, |
1429 | fixS *fixp) | |
e135f41b NC |
1430 | { |
1431 | arelent *reloc; | |
1432 | bfd_reloc_code_real_type code; | |
1433 | ||
325801bd | 1434 | reloc = XNEW (arelent); |
e135f41b | 1435 | |
325801bd | 1436 | reloc->sym_ptr_ptr = XNEW (asymbol *); |
e135f41b NC |
1437 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
1438 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
1439 | ||
55cf6793 | 1440 | /* This is taken account for in md_apply_fix(). */ |
e135f41b NC |
1441 | reloc->addend = -symbol_get_bfdsym (fixp->fx_addsy)->section->vma; |
1442 | ||
10a95fcc AM |
1443 | code = fixp->fx_r_type; |
1444 | if (fixp->fx_pcrel) | |
e135f41b | 1445 | { |
10a95fcc AM |
1446 | switch (code) |
1447 | { | |
1448 | case BFD_RELOC_16: | |
1449 | code = BFD_RELOC_16_PCREL; | |
1450 | break; | |
e135f41b | 1451 | |
10a95fcc AM |
1452 | case BFD_RELOC_16_PCREL: |
1453 | break; | |
e135f41b | 1454 | |
10a95fcc AM |
1455 | default: |
1456 | BAD_CASE (code); | |
1457 | return NULL; | |
1458 | } | |
e135f41b NC |
1459 | } |
1460 | ||
1461 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
1462 | ||
1463 | if (reloc->howto == NULL) | |
1464 | { | |
1465 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
20203fb9 | 1466 | _("Can not represent %s relocation in this object file format"), |
e135f41b NC |
1467 | bfd_get_reloc_code_name (code)); |
1468 | return NULL; | |
1469 | } | |
1470 | ||
1471 | return reloc; | |
1472 | } | |
1473 | ||
1474 | void | |
4d5f9b2a | 1475 | pseudo_bss (int c ATTRIBUTE_UNUSED) |
e135f41b NC |
1476 | { |
1477 | int temp; | |
1478 | ||
1479 | temp = get_absolute_expression (); | |
1480 | subseg_set (bss_section, temp); | |
1481 | demand_empty_rest_of_line (); | |
1482 | } | |
1483 | ||
1484 | void | |
4d5f9b2a | 1485 | pseudo_even (int c ATTRIBUTE_UNUSED) |
e135f41b NC |
1486 | { |
1487 | int alignment = 1; /* 2^1 */ | |
1488 | frag_align (alignment, 0, 1); | |
1489 | record_alignment (now_seg, alignment); | |
1490 | } | |
499ac353 | 1491 | |
6d4af3c2 | 1492 | const char * |
499ac353 NC |
1493 | md_atof (int type, char * litP, int * sizeP) |
1494 | { | |
1495 | return vax_md_atof (type, litP, sizeP); | |
1496 | } |