Commit | Line | Data |
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e135f41b | 1 | /* tc-pdp11.c - pdp11-specific - |
82704155 | 2 | Copyright (C) 2001-2019 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 | ||
4d5f9b2a NC |
85 | static struct hash_control *insn_hash = NULL; |
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 | ||
191 | insn_hash = hash_new (); | |
192 | if (insn_hash == NULL) | |
20203fb9 | 193 | as_fatal (_("Virtual memory exhausted")); |
5cd4edbe | 194 | |
e135f41b | 195 | for (i = 0; i < pdp11_num_opcodes; i++) |
4d5f9b2a | 196 | hash_insert (insn_hash, pdp11_opcodes[i].name, (void *) (pdp11_opcodes + i)); |
e135f41b | 197 | for (i = 0; i < pdp11_num_aliases; i++) |
4d5f9b2a | 198 | hash_insert (insn_hash, pdp11_aliases[i].name, (void *) (pdp11_aliases + i)); |
e135f41b NC |
199 | } |
200 | ||
201 | void | |
4d5f9b2a | 202 | md_number_to_chars (char con[], valueT value, int nbytes) |
e135f41b NC |
203 | { |
204 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
4d5f9b2a | 205 | 0x12345678 is stored as "\x56\x78\x12\x34". It's |
33eaf5de | 206 | anyone's guess what 0x123456 would be stored like. */ |
e135f41b NC |
207 | |
208 | switch (nbytes) | |
209 | { | |
210 | case 0: | |
211 | break; | |
212 | case 1: | |
213 | con[0] = value & 0xff; | |
214 | break; | |
215 | case 2: | |
4d5f9b2a | 216 | con[0] = value & 0xff; |
e135f41b NC |
217 | con[1] = (value >> 8) & 0xff; |
218 | break; | |
219 | case 4: | |
220 | con[0] = (value >> 16) & 0xff; | |
221 | con[1] = (value >> 24) & 0xff; | |
4d5f9b2a | 222 | con[2] = value & 0xff; |
e135f41b NC |
223 | con[3] = (value >> 8) & 0xff; |
224 | break; | |
225 | default: | |
226 | BAD_CASE (nbytes); | |
5cd4edbe | 227 | } |
e135f41b NC |
228 | } |
229 | ||
230 | /* Fix up some data or instructions after we find out the value of a symbol | |
94f592af | 231 | that they reference. Knows about order of bytes in address. */ |
e135f41b | 232 | |
94f592af | 233 | void |
55cf6793 | 234 | md_apply_fix (fixS *fixP, |
4d5f9b2a NC |
235 | valueT * valP, |
236 | segT seg ATTRIBUTE_UNUSED) | |
e135f41b NC |
237 | { |
238 | valueT code; | |
239 | valueT mask; | |
94f592af | 240 | valueT val = * valP; |
e135f41b NC |
241 | char *buf; |
242 | int shift; | |
243 | int size; | |
244 | ||
245 | buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
246 | size = fixP->fx_size; | |
3ec2b351 | 247 | code = md_chars_to_number ((unsigned char *) buf, size); |
e135f41b NC |
248 | |
249 | switch (fixP->fx_r_type) | |
250 | { | |
251 | case BFD_RELOC_16: | |
252 | case BFD_RELOC_16_PCREL: | |
253 | mask = 0xffff; | |
254 | shift = 0; | |
255 | break; | |
256 | case BFD_RELOC_PDP11_DISP_8_PCREL: | |
257 | mask = 0x00ff; | |
258 | shift = 1; | |
259 | break; | |
260 | case BFD_RELOC_PDP11_DISP_6_PCREL: | |
261 | mask = 0x003f; | |
262 | shift = 1; | |
14127cc4 | 263 | val = -val; |
e135f41b NC |
264 | break; |
265 | default: | |
266 | BAD_CASE (fixP->fx_r_type); | |
267 | } | |
268 | ||
269 | if (fixP->fx_addsy != NULL) | |
94f592af | 270 | val += symbol_get_bfdsym (fixP->fx_addsy)->section->vma; |
e135f41b NC |
271 | /* *value += fixP->fx_addsy->bsym->section->vma; */ |
272 | ||
273 | code &= ~mask; | |
94f592af | 274 | code |= (val >> shift) & mask; |
e135f41b | 275 | number_to_chars_littleendian (buf, code, size); |
94f592af NC |
276 | |
277 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
278 | fixP->fx_done = 1; | |
e135f41b NC |
279 | } |
280 | ||
281 | long | |
e046cf80 | 282 | md_chars_to_number (unsigned char *con, int nbytes) |
e135f41b NC |
283 | { |
284 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
4d5f9b2a | 285 | 0x12345678 is stored as "\x56\x78\x12\x34". It's |
33eaf5de | 286 | anyone's guess what 0x123456 would be stored like. */ |
e135f41b NC |
287 | switch (nbytes) |
288 | { | |
289 | case 0: | |
290 | return 0; | |
291 | case 1: | |
292 | return con[0]; | |
293 | case 2: | |
294 | return (con[1] << BITS_PER_CHAR) | con[0]; | |
295 | case 4: | |
296 | return | |
4d5f9b2a NC |
297 | (((con[1] << BITS_PER_CHAR) | con[0]) << (2 * BITS_PER_CHAR)) |
298 | |((con[3] << BITS_PER_CHAR) | con[2]); | |
e135f41b NC |
299 | default: |
300 | BAD_CASE (nbytes); | |
301 | return 0; | |
5cd4edbe | 302 | } |
e135f41b NC |
303 | } |
304 | \f | |
305 | static char * | |
306 | skip_whitespace (char *str) | |
307 | { | |
308 | while (*str == ' ' || *str == '\t') | |
309 | str++; | |
310 | return str; | |
311 | } | |
312 | ||
313 | static char * | |
314 | find_whitespace (char *str) | |
315 | { | |
316 | while (*str != ' ' && *str != '\t' && *str != 0) | |
317 | str++; | |
318 | return str; | |
319 | } | |
320 | ||
e135f41b NC |
321 | static char * |
322 | parse_reg (char *str, struct pdp11_code *operand) | |
323 | { | |
324 | str = skip_whitespace (str); | |
3882b010 | 325 | if (TOLOWER (*str) == 'r') |
e135f41b NC |
326 | { |
327 | str++; | |
328 | switch (*str) | |
329 | { | |
330 | case '0': case '1': case '2': case '3': | |
331 | case '4': case '5': case '6': case '7': | |
332 | operand->code = *str - '0'; | |
333 | str++; | |
334 | break; | |
335 | default: | |
20203fb9 | 336 | operand->error = _("Bad register name"); |
e135f41b NC |
337 | return str - 1; |
338 | } | |
339 | } | |
4d5f9b2a NC |
340 | else if (strncmp (str, "sp", 2) == 0 |
341 | || strncmp (str, "SP", 2) == 0) | |
e135f41b NC |
342 | { |
343 | operand->code = 6; | |
344 | str += 2; | |
345 | } | |
4d5f9b2a NC |
346 | else if (strncmp (str, "pc", 2) == 0 |
347 | || strncmp (str, "PC", 2) == 0) | |
e135f41b NC |
348 | { |
349 | operand->code = 7; | |
350 | str += 2; | |
351 | } | |
352 | else | |
8f9ea98b | 353 | operand->error = _("Bad register name"); |
e135f41b NC |
354 | |
355 | return str; | |
356 | } | |
357 | ||
358 | static char * | |
cd3cde86 | 359 | parse_ac5 (char *str, struct pdp11_code *operand) |
e135f41b NC |
360 | { |
361 | str = skip_whitespace (str); | |
4d5f9b2a NC |
362 | if (strncmp (str, "fr", 2) == 0 |
363 | || strncmp (str, "FR", 2) == 0 | |
364 | || strncmp (str, "ac", 2) == 0 | |
365 | || strncmp (str, "AC", 2) == 0) | |
e135f41b NC |
366 | { |
367 | str += 2; | |
368 | switch (*str) | |
369 | { | |
370 | case '0': case '1': case '2': case '3': | |
cd3cde86 | 371 | case '4': case '5': |
e135f41b NC |
372 | operand->code = *str - '0'; |
373 | str++; | |
374 | break; | |
375 | default: | |
20203fb9 | 376 | operand->error = _("Bad register name"); |
e135f41b NC |
377 | return str - 2; |
378 | } | |
379 | } | |
380 | else | |
381 | { | |
20203fb9 | 382 | operand->error = _("Bad register name"); |
e135f41b NC |
383 | return str; |
384 | } | |
385 | ||
386 | return str; | |
387 | } | |
388 | ||
cd3cde86 AM |
389 | static char * |
390 | parse_ac (char *str, struct pdp11_code *operand) | |
391 | { | |
392 | str = parse_ac5 (str, operand); | |
393 | if (!operand->error && operand->code > 3) | |
394 | { | |
20203fb9 | 395 | operand->error = _("Bad register name"); |
cd3cde86 AM |
396 | return str - 3; |
397 | } | |
398 | ||
399 | return str; | |
400 | } | |
401 | ||
e135f41b NC |
402 | static char * |
403 | parse_expression (char *str, struct pdp11_code *operand) | |
404 | { | |
405 | char *save_input_line_pointer; | |
406 | segT seg; | |
407 | ||
408 | save_input_line_pointer = input_line_pointer; | |
409 | input_line_pointer = str; | |
410 | seg = expression (&operand->reloc.exp); | |
411 | if (seg == NULL) | |
412 | { | |
413 | input_line_pointer = save_input_line_pointer; | |
20203fb9 | 414 | operand->error = _("Error in expression"); |
e135f41b NC |
415 | return str; |
416 | } | |
417 | ||
418 | str = input_line_pointer; | |
419 | input_line_pointer = save_input_line_pointer; | |
420 | ||
421 | operand->reloc.pc_rel = 0; | |
422 | ||
e135f41b NC |
423 | return str; |
424 | } | |
425 | ||
426 | static char * | |
427 | parse_op_no_deferred (char *str, struct pdp11_code *operand) | |
428 | { | |
cd3cde86 AM |
429 | LITTLENUM_TYPE literal_float[2]; |
430 | ||
e135f41b NC |
431 | str = skip_whitespace (str); |
432 | ||
433 | switch (*str) | |
434 | { | |
435 | case '(': /* (rn) and (rn)+ */ | |
436 | str = parse_reg (str + 1, operand); | |
437 | if (operand->error) | |
438 | return str; | |
439 | str = skip_whitespace (str); | |
440 | if (*str != ')') | |
441 | { | |
20203fb9 | 442 | operand->error = _("Missing ')'"); |
e135f41b NC |
443 | return str; |
444 | } | |
445 | str++; | |
446 | if (*str == '+') | |
447 | { | |
448 | operand->code |= 020; | |
449 | str++; | |
450 | } | |
451 | else | |
452 | { | |
453 | operand->code |= 010; | |
454 | } | |
455 | break; | |
456 | ||
4d5f9b2a NC |
457 | /* Immediate. */ |
458 | case '#': | |
5cd4edbe | 459 | case '$': |
e135f41b NC |
460 | str = parse_expression (str + 1, operand); |
461 | if (operand->error) | |
462 | return str; | |
463 | operand->additional = TRUE; | |
464 | operand->word = operand->reloc.exp.X_add_number; | |
465 | switch (operand->reloc.exp.X_op) | |
466 | { | |
467 | case O_constant: | |
468 | break; | |
469 | case O_symbol: | |
470 | case O_add: | |
471 | case O_subtract: | |
472 | operand->reloc.type = BFD_RELOC_16; | |
473 | operand->reloc.pc_rel = 0; | |
474 | break; | |
cd3cde86 AM |
475 | case O_big: |
476 | if (operand->reloc.exp.X_add_number > 0) | |
477 | { | |
20203fb9 | 478 | operand->error = _("Error in expression"); |
cd3cde86 AM |
479 | break; |
480 | } | |
4d5f9b2a | 481 | /* It's a floating literal... */ |
cd3cde86 AM |
482 | know (operand->reloc.exp.X_add_number < 0); |
483 | flonum_gen2vax ('f', &generic_floating_point_number, literal_float); | |
484 | operand->word = literal_float[0]; | |
485 | if (literal_float[1] != 0) | |
486 | as_warn (_("Low order bits truncated in immediate float operand")); | |
487 | break; | |
e135f41b | 488 | default: |
20203fb9 | 489 | operand->error = _("Error in expression"); |
e135f41b NC |
490 | break; |
491 | } | |
492 | operand->code = 027; | |
493 | break; | |
494 | ||
4d5f9b2a NC |
495 | /* label, d(rn), -(rn) */ |
496 | default: | |
e135f41b | 497 | { |
e135f41b NC |
498 | if (strncmp (str, "-(", 2) == 0) /* -(rn) */ |
499 | { | |
500 | str = parse_reg (str + 2, operand); | |
501 | if (operand->error) | |
502 | return str; | |
503 | str = skip_whitespace (str); | |
504 | if (*str != ')') | |
505 | { | |
20203fb9 | 506 | operand->error = _("Missing ')'"); |
e135f41b NC |
507 | return str; |
508 | } | |
509 | operand->code |= 040; | |
510 | str++; | |
511 | break; | |
512 | } | |
513 | ||
514 | str = parse_expression (str, operand); | |
515 | if (operand->error) | |
516 | return str; | |
517 | ||
518 | str = skip_whitespace (str); | |
519 | ||
4d5f9b2a | 520 | if (*str != '(') |
e135f41b | 521 | { |
e135f41b NC |
522 | operand->code = 067; |
523 | operand->additional = 1; | |
524 | operand->word = 0; | |
525 | operand->reloc.type = BFD_RELOC_16_PCREL; | |
526 | operand->reloc.pc_rel = 1; | |
527 | break; | |
528 | } | |
529 | ||
4d5f9b2a NC |
530 | /* d(rn) */ |
531 | str++; | |
e135f41b NC |
532 | str = parse_reg (str, operand); |
533 | if (operand->error) | |
534 | return str; | |
535 | ||
536 | str = skip_whitespace (str); | |
537 | ||
538 | if (*str != ')') | |
539 | { | |
20203fb9 | 540 | operand->error = _("Missing ')'"); |
e135f41b NC |
541 | return str; |
542 | } | |
543 | ||
544 | str++; | |
545 | operand->additional = TRUE; | |
546 | operand->code |= 060; | |
547 | switch (operand->reloc.exp.X_op) | |
548 | { | |
549 | case O_symbol: | |
bb0a86e1 NC |
550 | operand->reloc.type = BFD_RELOC_16; |
551 | operand->reloc.pc_rel = 0; | |
e135f41b NC |
552 | break; |
553 | case O_constant: | |
554 | if ((operand->code & 7) == 7) | |
555 | { | |
556 | operand->reloc.pc_rel = 1; | |
557 | operand->word = operand->reloc.exp.X_add_number; | |
558 | } | |
559 | else | |
4d5f9b2a NC |
560 | operand->word = operand->reloc.exp.X_add_number; |
561 | ||
e135f41b NC |
562 | break; |
563 | default: | |
564 | BAD_CASE (operand->reloc.exp.X_op); | |
565 | } | |
566 | break; | |
567 | } | |
568 | } | |
569 | ||
570 | return str; | |
571 | } | |
572 | ||
573 | static char * | |
cd3cde86 | 574 | parse_op_noreg (char *str, struct pdp11_code *operand) |
e135f41b NC |
575 | { |
576 | str = skip_whitespace (str); | |
e135f41b NC |
577 | operand->error = NULL; |
578 | ||
579 | if (*str == '@' || *str == '*') | |
580 | { | |
3cf2b669 JPC |
581 | /* @(Rn) == @0(Rn): Mode 7, Indexed deferred. |
582 | Check for auto-increment deferred. */ | |
583 | if (str[1] == '(' | |
584 | && str[2] != 0 | |
585 | && str[3] != 0 | |
586 | && str[4] != 0 | |
587 | && str[5] != '+') | |
588 | { | |
589 | /* Change implied to explicit index deferred. */ | |
590 | *str = '0'; | |
591 | str = parse_op_no_deferred (str, operand); | |
592 | } | |
593 | else | |
8f9ea98b JPC |
594 | { |
595 | /* @Rn == (Rn): Register deferred. */ | |
596 | str = parse_reg (str + 1, operand); | |
597 | ||
598 | /* Not @Rn */ | |
599 | if (operand->error) | |
600 | { | |
601 | operand->error = NULL; | |
602 | str = parse_op_no_deferred (str, operand); | |
603 | } | |
604 | } | |
3cf2b669 | 605 | |
e135f41b NC |
606 | if (operand->error) |
607 | return str; | |
8f9ea98b | 608 | |
e135f41b NC |
609 | operand->code |= 010; |
610 | } | |
611 | else | |
612 | str = parse_op_no_deferred (str, operand); | |
613 | ||
614 | return str; | |
615 | } | |
616 | ||
cd3cde86 AM |
617 | static char * |
618 | parse_op (char *str, struct pdp11_code *operand) | |
619 | { | |
620 | str = skip_whitespace (str); | |
621 | ||
622 | str = parse_reg (str, operand); | |
623 | if (!operand->error) | |
624 | return str; | |
625 | ||
626 | operand->error = NULL; | |
627 | parse_ac5 (str, operand); | |
628 | if (!operand->error) | |
629 | { | |
20203fb9 | 630 | operand->error = _("Float AC not legal as integer operand"); |
cd3cde86 AM |
631 | return str; |
632 | } | |
5d6255fe | 633 | |
cd3cde86 AM |
634 | return parse_op_noreg (str, operand); |
635 | } | |
636 | ||
637 | static char * | |
638 | parse_fop (char *str, struct pdp11_code *operand) | |
639 | { | |
640 | str = skip_whitespace (str); | |
641 | ||
642 | str = parse_ac5 (str, operand); | |
643 | if (!operand->error) | |
644 | return str; | |
645 | ||
646 | operand->error = NULL; | |
647 | parse_reg (str, operand); | |
648 | if (!operand->error) | |
649 | { | |
20203fb9 | 650 | operand->error = _("General register not legal as float operand"); |
cd3cde86 AM |
651 | return str; |
652 | } | |
653 | ||
654 | return parse_op_noreg (str, operand); | |
655 | } | |
656 | ||
e135f41b NC |
657 | static char * |
658 | parse_separator (char *str, int *error) | |
659 | { | |
660 | str = skip_whitespace (str); | |
661 | *error = (*str != ','); | |
662 | if (!*error) | |
663 | str++; | |
664 | return str; | |
665 | } | |
666 | ||
667 | void | |
4d5f9b2a | 668 | md_assemble (char *instruction_string) |
e135f41b | 669 | { |
5a38dc70 | 670 | const struct pdp11_opcode *op; |
e135f41b NC |
671 | struct pdp11_code insn, op1, op2; |
672 | int error; | |
673 | int size; | |
6d4af3c2 | 674 | const char *err = NULL; |
e135f41b NC |
675 | char *str; |
676 | char *p; | |
677 | char c; | |
678 | ||
679 | str = skip_whitespace (instruction_string); | |
680 | p = find_whitespace (str); | |
681 | if (p - str == 0) | |
682 | { | |
20203fb9 | 683 | as_bad (_("No instruction found")); |
e135f41b NC |
684 | return; |
685 | } | |
686 | ||
687 | c = *p; | |
688 | *p = '\0'; | |
689 | op = (struct pdp11_opcode *)hash_find (insn_hash, str); | |
690 | *p = c; | |
691 | if (op == 0) | |
692 | { | |
cd3cde86 | 693 | as_bad (_("Unknown instruction '%s'"), str); |
e135f41b NC |
694 | return; |
695 | } | |
696 | ||
697 | if (!pdp11_extension[op->extension]) | |
698 | { | |
20203fb9 | 699 | as_warn (_("Unsupported instruction set extension: %s"), op->name); |
e135f41b NC |
700 | return; |
701 | } | |
702 | ||
703 | insn.error = NULL; | |
704 | insn.code = op->opcode; | |
705 | insn.reloc.type = BFD_RELOC_NONE; | |
706 | op1.error = NULL; | |
707 | op1.additional = FALSE; | |
708 | op1.reloc.type = BFD_RELOC_NONE; | |
709 | op2.error = NULL; | |
710 | op2.additional = FALSE; | |
711 | op2.reloc.type = BFD_RELOC_NONE; | |
712 | ||
713 | str = p; | |
714 | size = 2; | |
715 | ||
716 | switch (op->type) | |
717 | { | |
718 | case PDP11_OPCODE_NO_OPS: | |
719 | str = skip_whitespace (str); | |
e135f41b NC |
720 | break; |
721 | ||
722 | case PDP11_OPCODE_IMM3: | |
723 | case PDP11_OPCODE_IMM6: | |
724 | case PDP11_OPCODE_IMM8: | |
725 | str = skip_whitespace (str); | |
726 | if (*str == '#' || *str == '$') | |
727 | str++; | |
728 | str = parse_expression (str, &op1); | |
729 | if (op1.error) | |
730 | break; | |
cd3cde86 AM |
731 | if (op1.reloc.exp.X_op != O_constant || op1.reloc.type != BFD_RELOC_NONE) |
732 | { | |
20203fb9 | 733 | op1.error = _("operand is not an absolute constant"); |
cd3cde86 AM |
734 | break; |
735 | } | |
e135f41b NC |
736 | switch (op->type) |
737 | { | |
738 | case PDP11_OPCODE_IMM3: | |
cd3cde86 | 739 | if (op1.reloc.exp.X_add_number & ~7) |
e135f41b | 740 | { |
20203fb9 | 741 | op1.error = _("3-bit immediate out of range"); |
e135f41b NC |
742 | break; |
743 | } | |
744 | break; | |
745 | case PDP11_OPCODE_IMM6: | |
cd3cde86 | 746 | if (op1.reloc.exp.X_add_number & ~0x3f) |
e135f41b | 747 | { |
20203fb9 | 748 | op1.error = _("6-bit immediate out of range"); |
e135f41b NC |
749 | break; |
750 | } | |
751 | break; | |
752 | case PDP11_OPCODE_IMM8: | |
cd3cde86 | 753 | if (op1.reloc.exp.X_add_number & ~0xff) |
e135f41b | 754 | { |
20203fb9 | 755 | op1.error = _("8-bit immediate out of range"); |
e135f41b NC |
756 | break; |
757 | } | |
758 | break; | |
759 | } | |
cd3cde86 | 760 | insn.code |= op1.reloc.exp.X_add_number; |
e135f41b NC |
761 | break; |
762 | ||
763 | case PDP11_OPCODE_DISPL: | |
764 | { | |
d3ce72d0 NC |
765 | char *new_pointer; |
766 | new_pointer = parse_expression (str, &op1); | |
e135f41b NC |
767 | op1.code = 0; |
768 | op1.reloc.pc_rel = 1; | |
769 | op1.reloc.type = BFD_RELOC_PDP11_DISP_8_PCREL; | |
770 | if (op1.reloc.exp.X_op != O_symbol) | |
771 | { | |
20203fb9 | 772 | op1.error = _("Symbol expected"); |
e135f41b NC |
773 | break; |
774 | } | |
775 | if (op1.code & ~0xff) | |
776 | { | |
20203fb9 | 777 | err = _("8-bit displacement out of range"); |
e135f41b NC |
778 | break; |
779 | } | |
d3ce72d0 | 780 | str = new_pointer; |
e135f41b NC |
781 | insn.code |= op1.code; |
782 | insn.reloc = op1.reloc; | |
783 | } | |
784 | break; | |
785 | ||
786 | case PDP11_OPCODE_REG: | |
787 | str = parse_reg (str, &op1); | |
788 | if (op1.error) | |
789 | break; | |
790 | insn.code |= op1.code; | |
791 | break; | |
792 | ||
793 | case PDP11_OPCODE_OP: | |
794 | str = parse_op (str, &op1); | |
795 | if (op1.error) | |
796 | break; | |
797 | insn.code |= op1.code; | |
798 | if (op1.additional) | |
799 | size += 2; | |
800 | break; | |
801 | ||
cd3cde86 AM |
802 | case PDP11_OPCODE_FOP: |
803 | str = parse_fop (str, &op1); | |
804 | if (op1.error) | |
805 | break; | |
806 | insn.code |= op1.code; | |
807 | if (op1.additional) | |
808 | size += 2; | |
809 | break; | |
810 | ||
e135f41b NC |
811 | case PDP11_OPCODE_REG_OP: |
812 | str = parse_reg (str, &op2); | |
813 | if (op2.error) | |
814 | break; | |
815 | insn.code |= op2.code << 6; | |
816 | str = parse_separator (str, &error); | |
817 | if (error) | |
818 | { | |
20203fb9 | 819 | op2.error = _("Missing ','"); |
e135f41b NC |
820 | break; |
821 | } | |
822 | str = parse_op (str, &op1); | |
823 | if (op1.error) | |
824 | break; | |
825 | insn.code |= op1.code; | |
826 | if (op1.additional) | |
827 | size += 2; | |
828 | break; | |
829 | ||
830 | case PDP11_OPCODE_REG_OP_REV: | |
831 | str = parse_op (str, &op1); | |
832 | if (op1.error) | |
833 | break; | |
834 | insn.code |= op1.code; | |
835 | if (op1.additional) | |
836 | size += 2; | |
837 | str = parse_separator (str, &error); | |
838 | if (error) | |
839 | { | |
20203fb9 | 840 | op2.error = _("Missing ','"); |
e135f41b NC |
841 | break; |
842 | } | |
843 | str = parse_reg (str, &op2); | |
844 | if (op2.error) | |
845 | break; | |
846 | insn.code |= op2.code << 6; | |
847 | break; | |
848 | ||
cd3cde86 AM |
849 | case PDP11_OPCODE_AC_FOP: |
850 | str = parse_ac (str, &op2); | |
851 | if (op2.error) | |
852 | break; | |
853 | insn.code |= op2.code << 6; | |
854 | str = parse_separator (str, &error); | |
855 | if (error) | |
856 | { | |
20203fb9 | 857 | op1.error = _("Missing ','"); |
cd3cde86 AM |
858 | break; |
859 | } | |
860 | str = parse_fop (str, &op1); | |
861 | if (op1.error) | |
862 | break; | |
863 | insn.code |= op1.code; | |
864 | if (op1.additional) | |
865 | size += 2; | |
866 | break; | |
867 | ||
868 | case PDP11_OPCODE_FOP_AC: | |
869 | str = parse_fop (str, &op1); | |
870 | if (op1.error) | |
871 | break; | |
872 | insn.code |= op1.code; | |
873 | if (op1.additional) | |
874 | size += 2; | |
875 | str = parse_separator (str, &error); | |
876 | if (error) | |
877 | { | |
20203fb9 | 878 | op1.error = _("Missing ','"); |
cd3cde86 AM |
879 | break; |
880 | } | |
881 | str = parse_ac (str, &op2); | |
882 | if (op2.error) | |
883 | break; | |
884 | insn.code |= op2.code << 6; | |
885 | break; | |
886 | ||
e135f41b NC |
887 | case PDP11_OPCODE_AC_OP: |
888 | str = parse_ac (str, &op2); | |
889 | if (op2.error) | |
890 | break; | |
891 | insn.code |= op2.code << 6; | |
892 | str = parse_separator (str, &error); | |
893 | if (error) | |
894 | { | |
20203fb9 | 895 | op1.error = _("Missing ','"); |
e135f41b NC |
896 | break; |
897 | } | |
898 | str = parse_op (str, &op1); | |
899 | if (op1.error) | |
900 | break; | |
901 | insn.code |= op1.code; | |
902 | if (op1.additional) | |
903 | size += 2; | |
904 | break; | |
905 | ||
cd3cde86 AM |
906 | case PDP11_OPCODE_OP_AC: |
907 | str = parse_op (str, &op1); | |
908 | if (op1.error) | |
909 | break; | |
910 | insn.code |= op1.code; | |
911 | if (op1.additional) | |
912 | size += 2; | |
913 | str = parse_separator (str, &error); | |
914 | if (error) | |
915 | { | |
20203fb9 | 916 | op1.error = _("Missing ','"); |
cd3cde86 AM |
917 | break; |
918 | } | |
919 | str = parse_ac (str, &op2); | |
920 | if (op2.error) | |
921 | break; | |
922 | insn.code |= op2.code << 6; | |
923 | break; | |
924 | ||
e135f41b NC |
925 | case PDP11_OPCODE_OP_OP: |
926 | str = parse_op (str, &op1); | |
927 | if (op1.error) | |
928 | break; | |
929 | insn.code |= op1.code << 6; | |
930 | if (op1.additional) | |
931 | size += 2; | |
932 | str = parse_separator (str, &error); | |
933 | if (error) | |
934 | { | |
20203fb9 | 935 | op2.error = _("Missing ','"); |
e135f41b NC |
936 | break; |
937 | } | |
938 | str = parse_op (str, &op2); | |
939 | if (op2.error) | |
940 | break; | |
941 | insn.code |= op2.code; | |
942 | if (op2.additional) | |
943 | size += 2; | |
944 | break; | |
945 | ||
946 | case PDP11_OPCODE_REG_DISPL: | |
947 | { | |
d3ce72d0 | 948 | char *new_pointer; |
e135f41b NC |
949 | str = parse_reg (str, &op2); |
950 | if (op2.error) | |
951 | break; | |
952 | insn.code |= op2.code << 6; | |
953 | str = parse_separator (str, &error); | |
954 | if (error) | |
955 | { | |
20203fb9 | 956 | op1.error = _("Missing ','"); |
e135f41b NC |
957 | break; |
958 | } | |
d3ce72d0 | 959 | new_pointer = parse_expression (str, &op1); |
e135f41b NC |
960 | op1.code = 0; |
961 | op1.reloc.pc_rel = 1; | |
962 | op1.reloc.type = BFD_RELOC_PDP11_DISP_6_PCREL; | |
963 | if (op1.reloc.exp.X_op != O_symbol) | |
964 | { | |
20203fb9 | 965 | op1.error = _("Symbol expected"); |
e135f41b NC |
966 | break; |
967 | } | |
968 | if (op1.code & ~0x3f) | |
969 | { | |
20203fb9 | 970 | err = _("6-bit displacement out of range"); |
e135f41b NC |
971 | break; |
972 | } | |
d3ce72d0 | 973 | str = new_pointer; |
e135f41b NC |
974 | insn.code |= op1.code; |
975 | insn.reloc = op1.reloc; | |
976 | } | |
977 | break; | |
5cd4edbe | 978 | |
e135f41b NC |
979 | default: |
980 | BAD_CASE (op->type); | |
981 | } | |
982 | ||
983 | if (op1.error) | |
984 | err = op1.error; | |
985 | else if (op2.error) | |
986 | err = op2.error; | |
987 | else | |
988 | { | |
989 | str = skip_whitespace (str); | |
990 | if (*str) | |
20203fb9 | 991 | err = _("Too many operands"); |
e135f41b NC |
992 | } |
993 | ||
994 | { | |
995 | char *to = NULL; | |
5cd4edbe | 996 | |
e135f41b NC |
997 | if (err) |
998 | { | |
20203fb9 | 999 | as_bad ("%s", err); |
e135f41b NC |
1000 | return; |
1001 | } | |
1002 | ||
1003 | to = frag_more (size); | |
1004 | ||
1005 | md_number_to_chars (to, insn.code, 2); | |
1006 | if (insn.reloc.type != BFD_RELOC_NONE) | |
1007 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1008 | &insn.reloc.exp, insn.reloc.pc_rel, insn.reloc.type); | |
1009 | to += 2; | |
1010 | ||
1011 | if (op1.additional) | |
1012 | { | |
1013 | md_number_to_chars (to, op1.word, 2); | |
1014 | if (op1.reloc.type != BFD_RELOC_NONE) | |
1015 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1016 | &op1.reloc.exp, op1.reloc.pc_rel, op1.reloc.type); | |
1017 | to += 2; | |
1018 | } | |
1019 | ||
1020 | if (op2.additional) | |
1021 | { | |
1022 | md_number_to_chars (to, op2.word, 2); | |
1023 | if (op2.reloc.type != BFD_RELOC_NONE) | |
1024 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1025 | &op2.reloc.exp, op2.reloc.pc_rel, op2.reloc.type); | |
1026 | } | |
1027 | } | |
1028 | } | |
1029 | ||
1030 | int | |
4d5f9b2a NC |
1031 | md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED, |
1032 | segT segment ATTRIBUTE_UNUSED) | |
e135f41b NC |
1033 | { |
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | void | |
4d5f9b2a NC |
1038 | md_convert_frag (bfd *headers ATTRIBUTE_UNUSED, |
1039 | segT seg ATTRIBUTE_UNUSED, | |
1040 | fragS *fragP ATTRIBUTE_UNUSED) | |
e135f41b NC |
1041 | { |
1042 | } | |
1043 | ||
2b4f075a HPN |
1044 | int md_short_jump_size = 2; |
1045 | int md_long_jump_size = 4; | |
e135f41b NC |
1046 | |
1047 | void | |
4d5f9b2a NC |
1048 | md_create_short_jump (char *ptr ATTRIBUTE_UNUSED, |
1049 | addressT from_addr ATTRIBUTE_UNUSED, | |
1050 | addressT to_addr ATTRIBUTE_UNUSED, | |
1051 | fragS *frag ATTRIBUTE_UNUSED, | |
1052 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
e135f41b NC |
1053 | { |
1054 | } | |
1055 | ||
1056 | void | |
4d5f9b2a NC |
1057 | md_create_long_jump (char *ptr ATTRIBUTE_UNUSED, |
1058 | addressT from_addr ATTRIBUTE_UNUSED, | |
1059 | addressT to_addr ATTRIBUTE_UNUSED, | |
1060 | fragS *frag ATTRIBUTE_UNUSED, | |
1061 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
e135f41b NC |
1062 | { |
1063 | } | |
1064 | ||
1065 | static int | |
17b9d67d | 1066 | set_cpu_model (const char *arg) |
e135f41b NC |
1067 | { |
1068 | char buf[4]; | |
1069 | char *model = buf; | |
1070 | ||
1071 | if (arg[0] == 'k') | |
1072 | arg++; | |
1073 | ||
1074 | *model++ = *arg++; | |
1075 | ||
1076 | if (strchr ("abdx", model[-1]) == NULL) | |
1077 | return 0; | |
1078 | ||
1079 | if (model[-1] == 'd') | |
1080 | { | |
4d5f9b2a | 1081 | if (arg[0] == 'f' || arg[0] == 'j') |
e135f41b NC |
1082 | model[-1] = *arg++; |
1083 | } | |
1084 | else if (model[-1] == 'x') | |
1085 | { | |
1086 | if (arg[0] == 't') | |
1087 | model[-1] = *arg++; | |
1088 | } | |
1089 | ||
1090 | if (arg[0] == '-') | |
1091 | arg++; | |
1092 | ||
1093 | if (strncmp (arg, "11", 2) != 0) | |
1094 | return 0; | |
1095 | arg += 2; | |
1096 | ||
1097 | if (arg[0] == '-') | |
1098 | { | |
1099 | if (*++arg == 0) | |
1100 | return 0; | |
1101 | } | |
1102 | ||
4d5f9b2a | 1103 | /* Allow up to two revision letters. */ |
e135f41b NC |
1104 | if (arg[0] != 0) |
1105 | *model++ = *arg++; | |
1106 | if (arg[0] != 0) | |
1107 | *model++ = *arg++; | |
1108 | ||
1109 | *model++ = 0; | |
1110 | ||
1111 | set_option ("no-extensions"); | |
1112 | ||
4d5f9b2a NC |
1113 | /* KA11 (11/15/20). */ |
1114 | if (strncmp (buf, "a", 1) == 0) | |
1115 | return 1; /* No extensions. */ | |
e135f41b | 1116 | |
4d5f9b2a NC |
1117 | /* KB11 (11/45/50/55/70). */ |
1118 | else if (strncmp (buf, "b", 1) == 0) | |
1119 | return set_option ("eis") && set_option ("spl"); | |
e135f41b | 1120 | |
4d5f9b2a NC |
1121 | /* KD11-A (11/35/40). */ |
1122 | else if (strncmp (buf, "da", 2) == 0) | |
e135f41b NC |
1123 | return set_option ("limited-eis"); |
1124 | ||
4d5f9b2a NC |
1125 | /* KD11-B (11/05/10). */ |
1126 | else if (strncmp (buf, "db", 2) == 0 | |
1127 | /* KD11-D (11/04). */ | |
1128 | || strncmp (buf, "dd", 2) == 0) | |
e135f41b NC |
1129 | return 1; /* no extensions */ |
1130 | ||
4d5f9b2a NC |
1131 | /* KD11-E (11/34). */ |
1132 | else if (strncmp (buf, "de", 2) == 0) | |
1133 | return set_option ("eis") && set_option ("mxps"); | |
1134 | ||
1135 | /* KD11-F (11/03). */ | |
1136 | else if (strncmp (buf, "df", 2) == 0 | |
1137 | /* KD11-H (11/03). */ | |
1138 | || strncmp (buf, "dh", 2) == 0 | |
1139 | /* KD11-Q (11/03). */ | |
1140 | || strncmp (buf, "dq", 2) == 0) | |
1141 | return set_option ("limited-eis") && set_option ("mxps"); | |
1142 | ||
1143 | /* KD11-K (11/60). */ | |
1144 | else if (strncmp (buf, "dk", 2) == 0) | |
1145 | return set_option ("eis") | |
1146 | && set_option ("mxps") | |
1147 | && set_option ("ucode"); | |
1148 | ||
1149 | /* KD11-Z (11/44). */ | |
1150 | else if (strncmp (buf, "dz", 2) == 0) | |
1151 | return set_option ("csm") | |
1152 | && set_option ("eis") | |
1153 | && set_option ("mfpt") | |
1154 | && set_option ("mxps") | |
1155 | && set_option ("spl"); | |
1156 | ||
1157 | /* F11 (11/23/24). */ | |
1158 | else if (strncmp (buf, "f", 1) == 0) | |
1159 | return set_option ("eis") | |
1160 | && set_option ("mfpt") | |
1161 | && set_option ("mxps"); | |
1162 | ||
1163 | /* J11 (11/53/73/83/84/93/94). */ | |
1164 | else if (strncmp (buf, "j", 1) == 0) | |
1165 | return set_option ("csm") | |
1166 | && set_option ("eis") | |
1167 | && set_option ("mfpt") | |
1168 | && set_option ("multiproc") | |
1169 | && set_option ("mxps") | |
1170 | && set_option ("spl"); | |
1171 | ||
1172 | /* T11 (11/21). */ | |
1173 | else if (strncmp (buf, "t", 1) == 0) | |
1174 | return set_option ("limited-eis") | |
1175 | && set_option ("mxps"); | |
e135f41b NC |
1176 | |
1177 | else | |
1178 | return 0; | |
1179 | } | |
1180 | ||
1181 | static int | |
17b9d67d | 1182 | set_machine_model (const char *arg) |
e135f41b | 1183 | { |
4d5f9b2a NC |
1184 | if (strncmp (arg, "pdp-11/", 7) != 0 |
1185 | && strncmp (arg, "pdp11/", 6) != 0 | |
1186 | && strncmp (arg, "11/", 3) != 0) | |
e135f41b NC |
1187 | return 0; |
1188 | ||
1189 | if (strncmp (arg, "pdp", 3) == 0) | |
1190 | arg += 3; | |
1191 | if (arg[0] == '-') | |
1192 | arg++; | |
1193 | if (strncmp (arg, "11/", 3) == 0) | |
1194 | arg += 3; | |
1195 | ||
4d5f9b2a NC |
1196 | if (strcmp (arg, "03") == 0) |
1197 | return set_cpu_model ("kd11f"); | |
1198 | ||
1199 | else if (strcmp (arg, "04") == 0) | |
1200 | return set_cpu_model ("kd11d"); | |
e135f41b | 1201 | |
4d5f9b2a NC |
1202 | else if (strcmp (arg, "05") == 0 |
1203 | || strcmp (arg, "10") == 0) | |
1204 | return set_cpu_model ("kd11b"); | |
e135f41b | 1205 | |
4d5f9b2a NC |
1206 | else if (strcmp (arg, "15") == 0 |
1207 | || strcmp (arg, "20") == 0) | |
1208 | return set_cpu_model ("ka11"); | |
e135f41b | 1209 | |
4d5f9b2a NC |
1210 | else if (strcmp (arg, "21") == 0) |
1211 | return set_cpu_model ("t11"); | |
e135f41b | 1212 | |
4d5f9b2a NC |
1213 | else if (strcmp (arg, "23") == 0 |
1214 | || strcmp (arg, "24") == 0) | |
1215 | return set_cpu_model ("f11"); | |
e135f41b | 1216 | |
4d5f9b2a NC |
1217 | else if (strcmp (arg, "34") == 0 |
1218 | || strcmp (arg, "34a") == 0) | |
1219 | return set_cpu_model ("kd11e"); | |
e135f41b | 1220 | |
4d5f9b2a NC |
1221 | else if (strcmp (arg, "35") == 0 |
1222 | || strcmp (arg, "40") == 0) | |
1223 | return set_cpu_model ("kd11da"); | |
e135f41b | 1224 | |
4d5f9b2a NC |
1225 | else if (strcmp (arg, "44") == 0) |
1226 | return set_cpu_model ("kd11dz"); | |
e135f41b | 1227 | |
4d5f9b2a NC |
1228 | else if (strcmp (arg, "45") == 0 |
1229 | || strcmp (arg, "50") == 0 | |
1230 | || strcmp (arg, "55") == 0 | |
1231 | || strcmp (arg, "70") == 0) | |
1232 | return set_cpu_model ("kb11"); | |
e135f41b | 1233 | |
4d5f9b2a NC |
1234 | else if (strcmp (arg, "60") == 0) |
1235 | return set_cpu_model ("kd11k"); | |
e135f41b | 1236 | |
4d5f9b2a NC |
1237 | else if (strcmp (arg, "53") == 0 |
1238 | || strcmp (arg, "73") == 0 | |
1239 | || strcmp (arg, "83") == 0 | |
1240 | || strcmp (arg, "84") == 0 | |
1241 | || strcmp (arg, "93") == 0 | |
1242 | || strcmp (arg, "94") == 0) | |
1243 | return set_cpu_model ("j11") | |
1244 | && set_option ("fpp"); | |
e135f41b | 1245 | |
e135f41b NC |
1246 | else |
1247 | return 0; | |
1248 | } | |
1249 | ||
5a38dc70 | 1250 | const char *md_shortopts = "m:"; |
e135f41b NC |
1251 | |
1252 | struct option md_longopts[] = | |
1253 | { | |
1254 | #define OPTION_CPU 257 | |
1255 | { "cpu", required_argument, NULL, OPTION_CPU }, | |
1256 | #define OPTION_MACHINE 258 | |
1257 | { "machine", required_argument, NULL, OPTION_MACHINE }, | |
1258 | #define OPTION_PIC 259 | |
1259 | { "pic", no_argument, NULL, OPTION_PIC }, | |
1260 | { NULL, no_argument, NULL, 0 } | |
1261 | }; | |
1262 | ||
07726851 | 1263 | size_t md_longopts_size = sizeof (md_longopts); |
e135f41b | 1264 | |
4d5f9b2a NC |
1265 | /* Invocation line includes a switch not recognized by the base assembler. |
1266 | See if it's a processor-specific option. */ | |
e135f41b NC |
1267 | |
1268 | int | |
17b9d67d | 1269 | md_parse_option (int c, const char *arg) |
e135f41b NC |
1270 | { |
1271 | init_defaults (); | |
1272 | ||
1273 | switch (c) | |
1274 | { | |
1275 | case 'm': | |
1276 | if (set_option (arg)) | |
1277 | return 1; | |
1278 | if (set_cpu_model (arg)) | |
1279 | return 1; | |
1280 | if (set_machine_model (arg)) | |
1281 | return 1; | |
1282 | break; | |
1283 | ||
1284 | case OPTION_CPU: | |
1285 | if (set_cpu_model (arg)) | |
1286 | return 1; | |
1287 | break; | |
1288 | ||
1289 | case OPTION_MACHINE: | |
1290 | if (set_machine_model (arg)) | |
1291 | return 1; | |
1292 | break; | |
1293 | ||
1294 | case OPTION_PIC: | |
1295 | if (set_option ("pic")) | |
1296 | return 1; | |
1297 | break; | |
1298 | ||
1299 | default: | |
1300 | break; | |
1301 | } | |
1302 | ||
e135f41b NC |
1303 | return 0; |
1304 | } | |
1305 | ||
e135f41b | 1306 | void |
4d5f9b2a | 1307 | md_show_usage (FILE *stream) |
e135f41b NC |
1308 | { |
1309 | fprintf (stream, "\ | |
1310 | \n\ | |
2b0f3761 | 1311 | PDP-11 instruction set extensions:\n\ |
e135f41b | 1312 | \n\ |
33eaf5de | 1313 | -m(no-)cis allow (disallow) commercial instruction set\n\ |
e135f41b NC |
1314 | -m(no-)csm allow (disallow) CSM instruction\n\ |
1315 | -m(no-)eis allow (disallow) full extended instruction set\n\ | |
1316 | -m(no-)fis allow (disallow) KEV11 floating-point instructions\n\ | |
1317 | -m(no-)fpp allow (disallow) FP-11 floating-point instructions\n\ | |
1318 | -m(no-)fpu allow (disallow) FP-11 floating-point instructions\n\ | |
1319 | -m(no-)limited-eis allow (disallow) limited extended instruction set\n\ | |
1320 | -m(no-)mfpt allow (disallow) processor type instruction\n\ | |
1321 | -m(no-)multiproc allow (disallow) multiprocessor instructions\n\ | |
1322 | -m(no-)mxps allow (disallow) processor status instructions\n\ | |
1323 | -m(no-)spl allow (disallow) SPL instruction\n\ | |
1324 | -m(no-)ucode allow (disallow) microcode instructions\n\ | |
1325 | -mall-extensions allow all instruction set extensions\n\ | |
1326 | (this is the default)\n\ | |
33eaf5de NC |
1327 | -mno-extensions disallow all instruction set extensions\n\ |
1328 | -pic generate position-independent code\n\ | |
e135f41b NC |
1329 | \n\ |
1330 | PDP-11 CPU model options:\n\ | |
1331 | \n\ | |
1332 | -mka11* KA11 CPU. base line instruction set only\n\ | |
1333 | -mkb11* KB11 CPU. enable full EIS and SPL\n\ | |
1334 | -mkd11a* KD11-A CPU. enable limited EIS\n\ | |
1335 | -mkd11b* KD11-B CPU. base line instruction set only\n\ | |
1336 | -mkd11d* KD11-D CPU. base line instruction set only\n\ | |
1337 | -mkd11e* KD11-E CPU. enable full EIS, MTPS, and MFPS\n\ | |
1338 | -mkd11f* KD11-F CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1339 | -mkd11h* KD11-H CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1340 | -mkd11q* KD11-Q CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1341 | -mkd11k* KD11-K CPU. enable full EIS, MTPS, MFPS, LDUB, MED,\n\ | |
1342 | XFC, and MFPT\n\ | |
1343 | -mkd11z* KD11-Z CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1344 | and CSM\n\ | |
1345 | -mf11* F11 CPU. enable full EIS, MFPS, MTPS, and MFPT\n\ | |
1346 | -mj11* J11 CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1347 | CSM, TSTSET, and WRTLCK\n\ | |
1348 | -mt11* T11 CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1349 | \n\ | |
1350 | PDP-11 machine model options:\n\ | |
1351 | \n\ | |
1352 | -m11/03 same as -mkd11f\n\ | |
1353 | -m11/04 same as -mkd11d\n\ | |
1354 | -m11/05 same as -mkd11b\n\ | |
1355 | -m11/10 same as -mkd11b\n\ | |
1356 | -m11/15 same as -mka11\n\ | |
1357 | -m11/20 same as -mka11\n\ | |
1358 | -m11/21 same as -mt11\n\ | |
1359 | -m11/23 same as -mf11\n\ | |
1360 | -m11/24 same as -mf11\n\ | |
1361 | -m11/34 same as -mkd11e\n\ | |
1362 | -m11/34a same as -mkd11e -mfpp\n\ | |
1363 | -m11/35 same as -mkd11a\n\ | |
1364 | -m11/40 same as -mkd11a\n\ | |
1365 | -m11/44 same as -mkd11z\n\ | |
1366 | -m11/45 same as -mkb11\n\ | |
1367 | -m11/50 same as -mkb11\n\ | |
1368 | -m11/53 same as -mj11\n\ | |
1369 | -m11/55 same as -mkb11\n\ | |
1370 | -m11/60 same as -mkd11k\n\ | |
1371 | -m11/70 same as -mkb11\n\ | |
1372 | -m11/73 same as -mj11\n\ | |
1373 | -m11/83 same as -mj11\n\ | |
1374 | -m11/84 same as -mj11\n\ | |
1375 | -m11/93 same as -mj11\n\ | |
1376 | -m11/94 same as -mj11\n\ | |
1377 | "); | |
1378 | } | |
1379 | ||
1380 | symbolS * | |
4d5f9b2a | 1381 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
e135f41b NC |
1382 | { |
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | valueT | |
4d5f9b2a NC |
1387 | md_section_align (segT segment ATTRIBUTE_UNUSED, |
1388 | valueT size) | |
e135f41b NC |
1389 | { |
1390 | return (size + 1) & ~1; | |
1391 | } | |
1392 | ||
1393 | long | |
4d5f9b2a | 1394 | md_pcrel_from (fixS *fixP) |
e135f41b NC |
1395 | { |
1396 | return fixP->fx_frag->fr_address + fixP->fx_where + fixP->fx_size; | |
1397 | } | |
1398 | ||
1399 | /* Translate internal representation of relocation info to BFD target | |
1400 | format. */ | |
4d5f9b2a | 1401 | |
e135f41b | 1402 | arelent * |
4d5f9b2a NC |
1403 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, |
1404 | fixS *fixp) | |
e135f41b NC |
1405 | { |
1406 | arelent *reloc; | |
1407 | bfd_reloc_code_real_type code; | |
1408 | ||
325801bd | 1409 | reloc = XNEW (arelent); |
e135f41b | 1410 | |
325801bd | 1411 | reloc->sym_ptr_ptr = XNEW (asymbol *); |
e135f41b NC |
1412 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
1413 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
1414 | ||
55cf6793 | 1415 | /* This is taken account for in md_apply_fix(). */ |
e135f41b NC |
1416 | reloc->addend = -symbol_get_bfdsym (fixp->fx_addsy)->section->vma; |
1417 | ||
1418 | switch (fixp->fx_r_type) | |
1419 | { | |
1420 | case BFD_RELOC_16: | |
1421 | if (fixp->fx_pcrel) | |
1422 | code = BFD_RELOC_16_PCREL; | |
1423 | else | |
1424 | code = BFD_RELOC_16; | |
1425 | break; | |
1426 | ||
1427 | case BFD_RELOC_16_PCREL: | |
1428 | code = BFD_RELOC_16_PCREL; | |
1429 | break; | |
1430 | ||
1431 | default: | |
1432 | BAD_CASE (fixp->fx_r_type); | |
1433 | return NULL; | |
1434 | } | |
1435 | ||
1436 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
1437 | ||
1438 | if (reloc->howto == NULL) | |
1439 | { | |
1440 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
20203fb9 | 1441 | _("Can not represent %s relocation in this object file format"), |
e135f41b NC |
1442 | bfd_get_reloc_code_name (code)); |
1443 | return NULL; | |
1444 | } | |
1445 | ||
1446 | return reloc; | |
1447 | } | |
1448 | ||
1449 | void | |
4d5f9b2a | 1450 | pseudo_bss (int c ATTRIBUTE_UNUSED) |
e135f41b NC |
1451 | { |
1452 | int temp; | |
1453 | ||
1454 | temp = get_absolute_expression (); | |
1455 | subseg_set (bss_section, temp); | |
1456 | demand_empty_rest_of_line (); | |
1457 | } | |
1458 | ||
1459 | void | |
4d5f9b2a | 1460 | pseudo_even (int c ATTRIBUTE_UNUSED) |
e135f41b NC |
1461 | { |
1462 | int alignment = 1; /* 2^1 */ | |
1463 | frag_align (alignment, 0, 1); | |
1464 | record_alignment (now_seg, alignment); | |
1465 | } | |
499ac353 | 1466 | |
6d4af3c2 | 1467 | const char * |
499ac353 NC |
1468 | md_atof (int type, char * litP, int * sizeP) |
1469 | { | |
1470 | return vax_md_atof (type, litP, sizeP); | |
1471 | } |