Commit | Line | Data |
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e135f41b | 1 | /* tc-pdp11.c - pdp11-specific - |
bb0a86e1 NC |
2 | Copyright 2001, 2002, 2004, 2005, 2007, 2009 |
3 | Free Software Foundation, Inc. | |
e135f41b NC |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 9 | the Free Software Foundation; either version 3, or (at your option) |
e135f41b NC |
10 | any later version. |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to | |
bb0a86e1 NC |
19 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
e135f41b | 21 | |
e135f41b | 22 | #include "as.h" |
3882b010 | 23 | #include "safe-ctype.h" |
e135f41b NC |
24 | #include "opcode/pdp11.h" |
25 | ||
4d5f9b2a | 26 | extern int flonum_gen2vax (int, FLONUM_TYPE * f, LITTLENUM_TYPE *); |
cd3cde86 | 27 | |
4d5f9b2a | 28 | #define TRUE 1 |
e135f41b NC |
29 | #define FALSE 0 |
30 | ||
4d5f9b2a | 31 | /* A representation for PDP-11 machine code. */ |
e135f41b NC |
32 | struct pdp11_code |
33 | { | |
34 | char *error; | |
35 | int code; | |
4d5f9b2a NC |
36 | int additional; /* Is there an additional word? */ |
37 | int word; /* Additional word, if any. */ | |
e135f41b NC |
38 | struct |
39 | { | |
40 | bfd_reloc_code_real_type type; | |
41 | expressionS exp; | |
42 | int pc_rel; | |
43 | } reloc; | |
44 | }; | |
45 | ||
4d5f9b2a NC |
46 | /* Instruction set extensions. |
47 | ||
48 | If you change this from an array to something else, please update | |
49 | the "PDP-11 instruction set extensions" comment in pdp11.h. */ | |
e135f41b NC |
50 | int pdp11_extension[PDP11_EXT_NUM]; |
51 | ||
4d5f9b2a | 52 | /* Assembly options. */ |
e135f41b NC |
53 | |
54 | #define ASM_OPT_PIC 1 | |
55 | #define ASM_OPT_NUM 2 | |
56 | ||
57 | int asm_option[ASM_OPT_NUM]; | |
58 | ||
59 | /* These chars start a comment anywhere in a source file (except inside | |
4d5f9b2a | 60 | another comment. */ |
5a38dc70 | 61 | const char comment_chars[] = "#/"; |
e135f41b | 62 | |
5cd4edbe | 63 | /* These chars only start a comment at the beginning of a line. */ |
5a38dc70 | 64 | const char line_comment_chars[] = "#/"; |
e135f41b | 65 | |
5a38dc70 | 66 | const char line_separator_chars[] = ";"; |
e135f41b | 67 | |
4d5f9b2a | 68 | /* Chars that can be used to separate mant from exp in floating point nums. */ |
5a38dc70 | 69 | const char EXP_CHARS[] = "eE"; |
e135f41b | 70 | |
4d5f9b2a NC |
71 | /* Chars that mean this number is a floating point constant. */ |
72 | /* as in 0f123.456. */ | |
73 | /* or 0H1.234E-12 (see exp chars above). */ | |
5a38dc70 | 74 | const char FLT_CHARS[] = "dDfF"; |
e135f41b NC |
75 | |
76 | void pseudo_even (int); | |
77 | void pseudo_bss (int); | |
78 | ||
5a38dc70 | 79 | const pseudo_typeS md_pseudo_table[] = |
e135f41b NC |
80 | { |
81 | { "bss", pseudo_bss, 0 }, | |
82 | { "even", pseudo_even, 0 }, | |
83 | { 0, 0, 0 }, | |
84 | }; | |
85 | ||
4d5f9b2a NC |
86 | static struct hash_control *insn_hash = NULL; |
87 | \f | |
88 | static int | |
89 | set_option (char *arg) | |
90 | { | |
91 | int yes = 1; | |
92 | ||
93 | if (strcmp (arg, "all-extensions") == 0 | |
94 | || strcmp (arg, "all") == 0) | |
95 | { | |
96 | memset (pdp11_extension, ~0, sizeof pdp11_extension); | |
97 | pdp11_extension[PDP11_NONE] = 0; | |
98 | return 1; | |
99 | } | |
100 | else if (strcmp (arg, "no-extensions") == 0) | |
101 | { | |
102 | memset (pdp11_extension, 0, sizeof pdp11_extension); | |
103 | pdp11_extension[PDP11_BASIC] = 1; | |
104 | return 1; | |
105 | } | |
106 | ||
107 | if (strncmp (arg, "no-", 3) == 0) | |
108 | { | |
109 | yes = 0; | |
110 | arg += 3; | |
111 | } | |
112 | ||
113 | /* Commersial instructions. */ | |
114 | if (strcmp (arg, "cis") == 0) | |
115 | pdp11_extension[PDP11_CIS] = yes; | |
116 | /* Call supervisor mode. */ | |
117 | else if (strcmp (arg, "csm") == 0) | |
118 | pdp11_extension[PDP11_CSM] = yes; | |
119 | /* Extended instruction set. */ | |
120 | else if (strcmp (arg, "eis") == 0) | |
121 | pdp11_extension[PDP11_EIS] = pdp11_extension[PDP11_LEIS] = yes; | |
122 | /* KEV11 floating-point. */ | |
123 | else if (strcmp (arg, "fis") == 0 | |
124 | || strcmp (arg, "kev11") == 0 | |
125 | || strcmp (arg, "kev-11") == 0) | |
126 | pdp11_extension[PDP11_FIS] = yes; | |
127 | /* FP-11 floating-point. */ | |
128 | else if (strcmp (arg, "fpp") == 0 | |
129 | || strcmp (arg, "fpu") == 0 | |
130 | || strcmp (arg, "fp11") == 0 | |
131 | || strcmp (arg, "fp-11") == 0 | |
132 | || strcmp (arg, "fpj11") == 0 | |
133 | || strcmp (arg, "fp-j11") == 0 | |
134 | || strcmp (arg, "fpj-11") == 0) | |
135 | pdp11_extension[PDP11_FPP] = yes; | |
136 | /* Limited extended insns. */ | |
137 | else if (strcmp (arg, "limited-eis") == 0) | |
138 | { | |
139 | pdp11_extension[PDP11_LEIS] = yes; | |
140 | if (!pdp11_extension[PDP11_LEIS]) | |
141 | pdp11_extension[PDP11_EIS] = 0; | |
142 | } | |
143 | /* Move from processor type. */ | |
144 | else if (strcmp (arg, "mfpt") == 0) | |
145 | pdp11_extension[PDP11_MFPT] = yes; | |
146 | /* Multiprocessor insns: */ | |
147 | else if (strncmp (arg, "mproc", 5) == 0 | |
148 | /* TSTSET, WRTLCK */ | |
149 | || strncmp (arg, "multiproc", 9) == 0) | |
150 | pdp11_extension[PDP11_MPROC] = yes; | |
151 | /* Move from/to proc status. */ | |
152 | else if (strcmp (arg, "mxps") == 0) | |
153 | pdp11_extension[PDP11_MXPS] = yes; | |
154 | /* Position-independent code. */ | |
155 | else if (strcmp (arg, "pic") == 0) | |
156 | asm_option[ASM_OPT_PIC] = yes; | |
157 | /* Set priority level. */ | |
158 | else if (strcmp (arg, "spl") == 0) | |
159 | pdp11_extension[PDP11_SPL] = yes; | |
160 | /* Microcode instructions: */ | |
161 | else if (strcmp (arg, "ucode") == 0 | |
162 | /* LDUB, MED, XFC */ | |
163 | || strcmp (arg, "microcode") == 0) | |
164 | pdp11_extension[PDP11_UCODE] = yes; | |
165 | else | |
166 | return 0; | |
167 | ||
168 | return 1; | |
169 | } | |
170 | ||
171 | ||
e135f41b | 172 | static void |
4d5f9b2a | 173 | init_defaults (void) |
e135f41b NC |
174 | { |
175 | static int first = 1; | |
176 | ||
177 | if (first) | |
178 | { | |
179 | set_option ("all-extensions"); | |
180 | set_option ("pic"); | |
181 | first = 0; | |
182 | } | |
183 | } | |
184 | ||
e135f41b | 185 | void |
4d5f9b2a | 186 | md_begin (void) |
e135f41b NC |
187 | { |
188 | int i; | |
189 | ||
190 | init_defaults (); | |
191 | ||
192 | insn_hash = hash_new (); | |
193 | if (insn_hash == NULL) | |
194 | as_fatal ("Virtual memory exhausted"); | |
5cd4edbe | 195 | |
e135f41b | 196 | for (i = 0; i < pdp11_num_opcodes; i++) |
4d5f9b2a | 197 | hash_insert (insn_hash, pdp11_opcodes[i].name, (void *) (pdp11_opcodes + i)); |
e135f41b | 198 | for (i = 0; i < pdp11_num_aliases; i++) |
4d5f9b2a | 199 | hash_insert (insn_hash, pdp11_aliases[i].name, (void *) (pdp11_aliases + i)); |
e135f41b NC |
200 | } |
201 | ||
202 | void | |
4d5f9b2a | 203 | md_number_to_chars (char con[], valueT value, int nbytes) |
e135f41b NC |
204 | { |
205 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
4d5f9b2a NC |
206 | 0x12345678 is stored as "\x56\x78\x12\x34". It's |
207 | anyones guess what 0x123456 would be stored like. */ | |
e135f41b NC |
208 | |
209 | switch (nbytes) | |
210 | { | |
211 | case 0: | |
212 | break; | |
213 | case 1: | |
214 | con[0] = value & 0xff; | |
215 | break; | |
216 | case 2: | |
4d5f9b2a | 217 | con[0] = value & 0xff; |
e135f41b NC |
218 | con[1] = (value >> 8) & 0xff; |
219 | break; | |
220 | case 4: | |
221 | con[0] = (value >> 16) & 0xff; | |
222 | con[1] = (value >> 24) & 0xff; | |
4d5f9b2a | 223 | con[2] = value & 0xff; |
e135f41b NC |
224 | con[3] = (value >> 8) & 0xff; |
225 | break; | |
226 | default: | |
227 | BAD_CASE (nbytes); | |
5cd4edbe | 228 | } |
e135f41b NC |
229 | } |
230 | ||
231 | /* Fix up some data or instructions after we find out the value of a symbol | |
94f592af | 232 | that they reference. Knows about order of bytes in address. */ |
e135f41b | 233 | |
94f592af | 234 | void |
55cf6793 | 235 | md_apply_fix (fixS *fixP, |
4d5f9b2a NC |
236 | valueT * valP, |
237 | segT seg ATTRIBUTE_UNUSED) | |
e135f41b NC |
238 | { |
239 | valueT code; | |
240 | valueT mask; | |
94f592af | 241 | valueT val = * valP; |
e135f41b NC |
242 | char *buf; |
243 | int shift; | |
244 | int size; | |
245 | ||
246 | buf = fixP->fx_where + fixP->fx_frag->fr_literal; | |
247 | size = fixP->fx_size; | |
3ec2b351 | 248 | code = md_chars_to_number ((unsigned char *) buf, size); |
e135f41b NC |
249 | |
250 | switch (fixP->fx_r_type) | |
251 | { | |
252 | case BFD_RELOC_16: | |
253 | case BFD_RELOC_16_PCREL: | |
254 | mask = 0xffff; | |
255 | shift = 0; | |
256 | break; | |
257 | case BFD_RELOC_PDP11_DISP_8_PCREL: | |
258 | mask = 0x00ff; | |
259 | shift = 1; | |
260 | break; | |
261 | case BFD_RELOC_PDP11_DISP_6_PCREL: | |
262 | mask = 0x003f; | |
263 | shift = 1; | |
14127cc4 | 264 | val = -val; |
e135f41b NC |
265 | break; |
266 | default: | |
267 | BAD_CASE (fixP->fx_r_type); | |
268 | } | |
269 | ||
270 | if (fixP->fx_addsy != NULL) | |
94f592af | 271 | val += symbol_get_bfdsym (fixP->fx_addsy)->section->vma; |
e135f41b NC |
272 | /* *value += fixP->fx_addsy->bsym->section->vma; */ |
273 | ||
274 | code &= ~mask; | |
94f592af | 275 | code |= (val >> shift) & mask; |
e135f41b | 276 | number_to_chars_littleendian (buf, code, size); |
94f592af NC |
277 | |
278 | if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0) | |
279 | fixP->fx_done = 1; | |
e135f41b NC |
280 | } |
281 | ||
282 | long | |
283 | md_chars_to_number (con, nbytes) | |
5cd4edbe KH |
284 | unsigned char con[]; /* Low order byte 1st. */ |
285 | int nbytes; /* Number of bytes in the input. */ | |
e135f41b NC |
286 | { |
287 | /* On a PDP-11, 0x1234 is stored as "\x12\x34", and | |
4d5f9b2a NC |
288 | 0x12345678 is stored as "\x56\x78\x12\x34". It's |
289 | anyones guess what 0x123456 would be stored like. */ | |
e135f41b NC |
290 | switch (nbytes) |
291 | { | |
292 | case 0: | |
293 | return 0; | |
294 | case 1: | |
295 | return con[0]; | |
296 | case 2: | |
297 | return (con[1] << BITS_PER_CHAR) | con[0]; | |
298 | case 4: | |
299 | return | |
4d5f9b2a NC |
300 | (((con[1] << BITS_PER_CHAR) | con[0]) << (2 * BITS_PER_CHAR)) |
301 | |((con[3] << BITS_PER_CHAR) | con[2]); | |
e135f41b NC |
302 | default: |
303 | BAD_CASE (nbytes); | |
304 | return 0; | |
5cd4edbe | 305 | } |
e135f41b NC |
306 | } |
307 | \f | |
308 | static char * | |
309 | skip_whitespace (char *str) | |
310 | { | |
311 | while (*str == ' ' || *str == '\t') | |
312 | str++; | |
313 | return str; | |
314 | } | |
315 | ||
316 | static char * | |
317 | find_whitespace (char *str) | |
318 | { | |
319 | while (*str != ' ' && *str != '\t' && *str != 0) | |
320 | str++; | |
321 | return str; | |
322 | } | |
323 | ||
e135f41b NC |
324 | static char * |
325 | parse_reg (char *str, struct pdp11_code *operand) | |
326 | { | |
327 | str = skip_whitespace (str); | |
3882b010 | 328 | if (TOLOWER (*str) == 'r') |
e135f41b NC |
329 | { |
330 | str++; | |
331 | switch (*str) | |
332 | { | |
333 | case '0': case '1': case '2': case '3': | |
334 | case '4': case '5': case '6': case '7': | |
335 | operand->code = *str - '0'; | |
336 | str++; | |
337 | break; | |
338 | default: | |
339 | operand->error = "Bad register name"; | |
340 | return str - 1; | |
341 | } | |
342 | } | |
4d5f9b2a NC |
343 | else if (strncmp (str, "sp", 2) == 0 |
344 | || strncmp (str, "SP", 2) == 0) | |
e135f41b NC |
345 | { |
346 | operand->code = 6; | |
347 | str += 2; | |
348 | } | |
4d5f9b2a NC |
349 | else if (strncmp (str, "pc", 2) == 0 |
350 | || strncmp (str, "PC", 2) == 0) | |
e135f41b NC |
351 | { |
352 | operand->code = 7; | |
353 | str += 2; | |
354 | } | |
355 | else | |
356 | { | |
357 | operand->error = "Bad register name"; | |
358 | return str; | |
359 | } | |
360 | ||
361 | return str; | |
362 | } | |
363 | ||
364 | static char * | |
cd3cde86 | 365 | parse_ac5 (char *str, struct pdp11_code *operand) |
e135f41b NC |
366 | { |
367 | str = skip_whitespace (str); | |
4d5f9b2a NC |
368 | if (strncmp (str, "fr", 2) == 0 |
369 | || strncmp (str, "FR", 2) == 0 | |
370 | || strncmp (str, "ac", 2) == 0 | |
371 | || strncmp (str, "AC", 2) == 0) | |
e135f41b NC |
372 | { |
373 | str += 2; | |
374 | switch (*str) | |
375 | { | |
376 | case '0': case '1': case '2': case '3': | |
cd3cde86 | 377 | case '4': case '5': |
e135f41b NC |
378 | operand->code = *str - '0'; |
379 | str++; | |
380 | break; | |
381 | default: | |
382 | operand->error = "Bad register name"; | |
383 | return str - 2; | |
384 | } | |
385 | } | |
386 | else | |
387 | { | |
388 | operand->error = "Bad register name"; | |
389 | return str; | |
390 | } | |
391 | ||
392 | return str; | |
393 | } | |
394 | ||
cd3cde86 AM |
395 | static char * |
396 | parse_ac (char *str, struct pdp11_code *operand) | |
397 | { | |
398 | str = parse_ac5 (str, operand); | |
399 | if (!operand->error && operand->code > 3) | |
400 | { | |
401 | operand->error = "Bad register name"; | |
402 | return str - 3; | |
403 | } | |
404 | ||
405 | return str; | |
406 | } | |
407 | ||
e135f41b NC |
408 | static char * |
409 | parse_expression (char *str, struct pdp11_code *operand) | |
410 | { | |
411 | char *save_input_line_pointer; | |
412 | segT seg; | |
413 | ||
414 | save_input_line_pointer = input_line_pointer; | |
415 | input_line_pointer = str; | |
416 | seg = expression (&operand->reloc.exp); | |
417 | if (seg == NULL) | |
418 | { | |
419 | input_line_pointer = save_input_line_pointer; | |
420 | operand->error = "Error in expression"; | |
421 | return str; | |
422 | } | |
423 | ||
424 | str = input_line_pointer; | |
425 | input_line_pointer = save_input_line_pointer; | |
426 | ||
427 | operand->reloc.pc_rel = 0; | |
428 | ||
e135f41b NC |
429 | return str; |
430 | } | |
431 | ||
432 | static char * | |
433 | parse_op_no_deferred (char *str, struct pdp11_code *operand) | |
434 | { | |
cd3cde86 AM |
435 | LITTLENUM_TYPE literal_float[2]; |
436 | ||
e135f41b NC |
437 | str = skip_whitespace (str); |
438 | ||
439 | switch (*str) | |
440 | { | |
441 | case '(': /* (rn) and (rn)+ */ | |
442 | str = parse_reg (str + 1, operand); | |
443 | if (operand->error) | |
444 | return str; | |
445 | str = skip_whitespace (str); | |
446 | if (*str != ')') | |
447 | { | |
448 | operand->error = "Missing ')'"; | |
449 | return str; | |
450 | } | |
451 | str++; | |
452 | if (*str == '+') | |
453 | { | |
454 | operand->code |= 020; | |
455 | str++; | |
456 | } | |
457 | else | |
458 | { | |
459 | operand->code |= 010; | |
460 | } | |
461 | break; | |
462 | ||
4d5f9b2a NC |
463 | /* Immediate. */ |
464 | case '#': | |
5cd4edbe | 465 | case '$': |
e135f41b NC |
466 | str = parse_expression (str + 1, operand); |
467 | if (operand->error) | |
468 | return str; | |
469 | operand->additional = TRUE; | |
470 | operand->word = operand->reloc.exp.X_add_number; | |
471 | switch (operand->reloc.exp.X_op) | |
472 | { | |
473 | case O_constant: | |
474 | break; | |
475 | case O_symbol: | |
476 | case O_add: | |
477 | case O_subtract: | |
478 | operand->reloc.type = BFD_RELOC_16; | |
479 | operand->reloc.pc_rel = 0; | |
480 | break; | |
cd3cde86 AM |
481 | case O_big: |
482 | if (operand->reloc.exp.X_add_number > 0) | |
483 | { | |
484 | operand->error = "Error in expression"; | |
485 | break; | |
486 | } | |
4d5f9b2a | 487 | /* It's a floating literal... */ |
cd3cde86 AM |
488 | know (operand->reloc.exp.X_add_number < 0); |
489 | flonum_gen2vax ('f', &generic_floating_point_number, literal_float); | |
490 | operand->word = literal_float[0]; | |
491 | if (literal_float[1] != 0) | |
492 | as_warn (_("Low order bits truncated in immediate float operand")); | |
493 | break; | |
e135f41b NC |
494 | default: |
495 | operand->error = "Error in expression"; | |
496 | break; | |
497 | } | |
498 | operand->code = 027; | |
499 | break; | |
500 | ||
4d5f9b2a NC |
501 | /* label, d(rn), -(rn) */ |
502 | default: | |
e135f41b NC |
503 | { |
504 | char *old = str; | |
505 | ||
506 | if (strncmp (str, "-(", 2) == 0) /* -(rn) */ | |
507 | { | |
508 | str = parse_reg (str + 2, operand); | |
509 | if (operand->error) | |
510 | return str; | |
511 | str = skip_whitespace (str); | |
512 | if (*str != ')') | |
513 | { | |
514 | operand->error = "Missing ')'"; | |
515 | return str; | |
516 | } | |
517 | operand->code |= 040; | |
518 | str++; | |
519 | break; | |
520 | } | |
521 | ||
522 | str = parse_expression (str, operand); | |
523 | if (operand->error) | |
524 | return str; | |
525 | ||
526 | str = skip_whitespace (str); | |
527 | ||
4d5f9b2a | 528 | if (*str != '(') |
e135f41b NC |
529 | { |
530 | if (operand->reloc.exp.X_op != O_symbol) | |
531 | { | |
532 | operand->error = "Label expected"; | |
533 | return old; | |
534 | } | |
535 | operand->code = 067; | |
536 | operand->additional = 1; | |
537 | operand->word = 0; | |
538 | operand->reloc.type = BFD_RELOC_16_PCREL; | |
539 | operand->reloc.pc_rel = 1; | |
540 | break; | |
541 | } | |
542 | ||
4d5f9b2a NC |
543 | /* d(rn) */ |
544 | str++; | |
e135f41b NC |
545 | str = parse_reg (str, operand); |
546 | if (operand->error) | |
547 | return str; | |
548 | ||
549 | str = skip_whitespace (str); | |
550 | ||
551 | if (*str != ')') | |
552 | { | |
553 | operand->error = "Missing ')'"; | |
554 | return str; | |
555 | } | |
556 | ||
557 | str++; | |
558 | operand->additional = TRUE; | |
559 | operand->code |= 060; | |
560 | switch (operand->reloc.exp.X_op) | |
561 | { | |
562 | case O_symbol: | |
bb0a86e1 NC |
563 | operand->reloc.type = BFD_RELOC_16; |
564 | operand->reloc.pc_rel = 0; | |
e135f41b NC |
565 | break; |
566 | case O_constant: | |
567 | if ((operand->code & 7) == 7) | |
568 | { | |
569 | operand->reloc.pc_rel = 1; | |
570 | operand->word = operand->reloc.exp.X_add_number; | |
571 | } | |
572 | else | |
4d5f9b2a NC |
573 | operand->word = operand->reloc.exp.X_add_number; |
574 | ||
e135f41b NC |
575 | break; |
576 | default: | |
577 | BAD_CASE (operand->reloc.exp.X_op); | |
578 | } | |
579 | break; | |
580 | } | |
581 | } | |
582 | ||
583 | return str; | |
584 | } | |
585 | ||
586 | static char * | |
cd3cde86 | 587 | parse_op_noreg (char *str, struct pdp11_code *operand) |
e135f41b NC |
588 | { |
589 | str = skip_whitespace (str); | |
e135f41b NC |
590 | operand->error = NULL; |
591 | ||
592 | if (*str == '@' || *str == '*') | |
593 | { | |
594 | str = parse_op_no_deferred (str + 1, operand); | |
595 | if (operand->error) | |
596 | return str; | |
597 | operand->code |= 010; | |
598 | } | |
599 | else | |
600 | str = parse_op_no_deferred (str, operand); | |
601 | ||
602 | return str; | |
603 | } | |
604 | ||
cd3cde86 AM |
605 | static char * |
606 | parse_op (char *str, struct pdp11_code *operand) | |
607 | { | |
608 | str = skip_whitespace (str); | |
609 | ||
610 | str = parse_reg (str, operand); | |
611 | if (!operand->error) | |
612 | return str; | |
613 | ||
614 | operand->error = NULL; | |
615 | parse_ac5 (str, operand); | |
616 | if (!operand->error) | |
617 | { | |
618 | operand->error = "Float AC not legal as integer operand"; | |
619 | return str; | |
620 | } | |
5d6255fe | 621 | |
cd3cde86 AM |
622 | return parse_op_noreg (str, operand); |
623 | } | |
624 | ||
625 | static char * | |
626 | parse_fop (char *str, struct pdp11_code *operand) | |
627 | { | |
628 | str = skip_whitespace (str); | |
629 | ||
630 | str = parse_ac5 (str, operand); | |
631 | if (!operand->error) | |
632 | return str; | |
633 | ||
634 | operand->error = NULL; | |
635 | parse_reg (str, operand); | |
636 | if (!operand->error) | |
637 | { | |
638 | operand->error = "General register not legal as float operand"; | |
639 | return str; | |
640 | } | |
641 | ||
642 | return parse_op_noreg (str, operand); | |
643 | } | |
644 | ||
e135f41b NC |
645 | static char * |
646 | parse_separator (char *str, int *error) | |
647 | { | |
648 | str = skip_whitespace (str); | |
649 | *error = (*str != ','); | |
650 | if (!*error) | |
651 | str++; | |
652 | return str; | |
653 | } | |
654 | ||
655 | void | |
4d5f9b2a | 656 | md_assemble (char *instruction_string) |
e135f41b | 657 | { |
5a38dc70 | 658 | const struct pdp11_opcode *op; |
e135f41b NC |
659 | struct pdp11_code insn, op1, op2; |
660 | int error; | |
661 | int size; | |
662 | char *err = NULL; | |
663 | char *str; | |
664 | char *p; | |
665 | char c; | |
666 | ||
667 | str = skip_whitespace (instruction_string); | |
668 | p = find_whitespace (str); | |
669 | if (p - str == 0) | |
670 | { | |
671 | as_bad ("No instruction found"); | |
672 | return; | |
673 | } | |
674 | ||
675 | c = *p; | |
676 | *p = '\0'; | |
677 | op = (struct pdp11_opcode *)hash_find (insn_hash, str); | |
678 | *p = c; | |
679 | if (op == 0) | |
680 | { | |
cd3cde86 | 681 | as_bad (_("Unknown instruction '%s'"), str); |
e135f41b NC |
682 | return; |
683 | } | |
684 | ||
685 | if (!pdp11_extension[op->extension]) | |
686 | { | |
687 | as_warn ("Unsupported instruction set extension: %s", op->name); | |
688 | return; | |
689 | } | |
690 | ||
691 | insn.error = NULL; | |
692 | insn.code = op->opcode; | |
693 | insn.reloc.type = BFD_RELOC_NONE; | |
694 | op1.error = NULL; | |
695 | op1.additional = FALSE; | |
696 | op1.reloc.type = BFD_RELOC_NONE; | |
697 | op2.error = NULL; | |
698 | op2.additional = FALSE; | |
699 | op2.reloc.type = BFD_RELOC_NONE; | |
700 | ||
701 | str = p; | |
702 | size = 2; | |
703 | ||
704 | switch (op->type) | |
705 | { | |
706 | case PDP11_OPCODE_NO_OPS: | |
707 | str = skip_whitespace (str); | |
708 | if (*str == 0) | |
709 | str = ""; | |
710 | break; | |
711 | ||
712 | case PDP11_OPCODE_IMM3: | |
713 | case PDP11_OPCODE_IMM6: | |
714 | case PDP11_OPCODE_IMM8: | |
715 | str = skip_whitespace (str); | |
716 | if (*str == '#' || *str == '$') | |
717 | str++; | |
718 | str = parse_expression (str, &op1); | |
719 | if (op1.error) | |
720 | break; | |
cd3cde86 AM |
721 | if (op1.reloc.exp.X_op != O_constant || op1.reloc.type != BFD_RELOC_NONE) |
722 | { | |
723 | op1.error = "operand is not an absolute constant"; | |
724 | break; | |
725 | } | |
e135f41b NC |
726 | switch (op->type) |
727 | { | |
728 | case PDP11_OPCODE_IMM3: | |
cd3cde86 | 729 | if (op1.reloc.exp.X_add_number & ~7) |
e135f41b NC |
730 | { |
731 | op1.error = "3-bit immediate out of range"; | |
732 | break; | |
733 | } | |
734 | break; | |
735 | case PDP11_OPCODE_IMM6: | |
cd3cde86 | 736 | if (op1.reloc.exp.X_add_number & ~0x3f) |
e135f41b NC |
737 | { |
738 | op1.error = "6-bit immediate out of range"; | |
739 | break; | |
740 | } | |
741 | break; | |
742 | case PDP11_OPCODE_IMM8: | |
cd3cde86 | 743 | if (op1.reloc.exp.X_add_number & ~0xff) |
e135f41b NC |
744 | { |
745 | op1.error = "8-bit immediate out of range"; | |
746 | break; | |
747 | } | |
748 | break; | |
749 | } | |
cd3cde86 | 750 | insn.code |= op1.reloc.exp.X_add_number; |
e135f41b NC |
751 | break; |
752 | ||
753 | case PDP11_OPCODE_DISPL: | |
754 | { | |
755 | char *new; | |
756 | new = parse_expression (str, &op1); | |
757 | op1.code = 0; | |
758 | op1.reloc.pc_rel = 1; | |
759 | op1.reloc.type = BFD_RELOC_PDP11_DISP_8_PCREL; | |
760 | if (op1.reloc.exp.X_op != O_symbol) | |
761 | { | |
762 | op1.error = "Symbol expected"; | |
763 | break; | |
764 | } | |
765 | if (op1.code & ~0xff) | |
766 | { | |
767 | err = "8-bit displacement out of range"; | |
768 | break; | |
769 | } | |
770 | str = new; | |
771 | insn.code |= op1.code; | |
772 | insn.reloc = op1.reloc; | |
773 | } | |
774 | break; | |
775 | ||
776 | case PDP11_OPCODE_REG: | |
777 | str = parse_reg (str, &op1); | |
778 | if (op1.error) | |
779 | break; | |
780 | insn.code |= op1.code; | |
781 | break; | |
782 | ||
783 | case PDP11_OPCODE_OP: | |
784 | str = parse_op (str, &op1); | |
785 | if (op1.error) | |
786 | break; | |
787 | insn.code |= op1.code; | |
788 | if (op1.additional) | |
789 | size += 2; | |
790 | break; | |
791 | ||
cd3cde86 AM |
792 | case PDP11_OPCODE_FOP: |
793 | str = parse_fop (str, &op1); | |
794 | if (op1.error) | |
795 | break; | |
796 | insn.code |= op1.code; | |
797 | if (op1.additional) | |
798 | size += 2; | |
799 | break; | |
800 | ||
e135f41b NC |
801 | case PDP11_OPCODE_REG_OP: |
802 | str = parse_reg (str, &op2); | |
803 | if (op2.error) | |
804 | break; | |
805 | insn.code |= op2.code << 6; | |
806 | str = parse_separator (str, &error); | |
807 | if (error) | |
808 | { | |
809 | op2.error = "Missing ','"; | |
810 | break; | |
811 | } | |
812 | str = parse_op (str, &op1); | |
813 | if (op1.error) | |
814 | break; | |
815 | insn.code |= op1.code; | |
816 | if (op1.additional) | |
817 | size += 2; | |
818 | break; | |
819 | ||
820 | case PDP11_OPCODE_REG_OP_REV: | |
821 | str = parse_op (str, &op1); | |
822 | if (op1.error) | |
823 | break; | |
824 | insn.code |= op1.code; | |
825 | if (op1.additional) | |
826 | size += 2; | |
827 | str = parse_separator (str, &error); | |
828 | if (error) | |
829 | { | |
830 | op2.error = "Missing ','"; | |
831 | break; | |
832 | } | |
833 | str = parse_reg (str, &op2); | |
834 | if (op2.error) | |
835 | break; | |
836 | insn.code |= op2.code << 6; | |
837 | break; | |
838 | ||
cd3cde86 AM |
839 | case PDP11_OPCODE_AC_FOP: |
840 | str = parse_ac (str, &op2); | |
841 | if (op2.error) | |
842 | break; | |
843 | insn.code |= op2.code << 6; | |
844 | str = parse_separator (str, &error); | |
845 | if (error) | |
846 | { | |
847 | op1.error = "Missing ','"; | |
848 | break; | |
849 | } | |
850 | str = parse_fop (str, &op1); | |
851 | if (op1.error) | |
852 | break; | |
853 | insn.code |= op1.code; | |
854 | if (op1.additional) | |
855 | size += 2; | |
856 | break; | |
857 | ||
858 | case PDP11_OPCODE_FOP_AC: | |
859 | str = parse_fop (str, &op1); | |
860 | if (op1.error) | |
861 | break; | |
862 | insn.code |= op1.code; | |
863 | if (op1.additional) | |
864 | size += 2; | |
865 | str = parse_separator (str, &error); | |
866 | if (error) | |
867 | { | |
868 | op1.error = "Missing ','"; | |
869 | break; | |
870 | } | |
871 | str = parse_ac (str, &op2); | |
872 | if (op2.error) | |
873 | break; | |
874 | insn.code |= op2.code << 6; | |
875 | break; | |
876 | ||
e135f41b NC |
877 | case PDP11_OPCODE_AC_OP: |
878 | str = parse_ac (str, &op2); | |
879 | if (op2.error) | |
880 | break; | |
881 | insn.code |= op2.code << 6; | |
882 | str = parse_separator (str, &error); | |
883 | if (error) | |
884 | { | |
885 | op1.error = "Missing ','"; | |
886 | break; | |
887 | } | |
888 | str = parse_op (str, &op1); | |
889 | if (op1.error) | |
890 | break; | |
891 | insn.code |= op1.code; | |
892 | if (op1.additional) | |
893 | size += 2; | |
894 | break; | |
895 | ||
cd3cde86 AM |
896 | case PDP11_OPCODE_OP_AC: |
897 | str = parse_op (str, &op1); | |
898 | if (op1.error) | |
899 | break; | |
900 | insn.code |= op1.code; | |
901 | if (op1.additional) | |
902 | size += 2; | |
903 | str = parse_separator (str, &error); | |
904 | if (error) | |
905 | { | |
906 | op1.error = "Missing ','"; | |
907 | break; | |
908 | } | |
909 | str = parse_ac (str, &op2); | |
910 | if (op2.error) | |
911 | break; | |
912 | insn.code |= op2.code << 6; | |
913 | break; | |
914 | ||
e135f41b NC |
915 | case PDP11_OPCODE_OP_OP: |
916 | str = parse_op (str, &op1); | |
917 | if (op1.error) | |
918 | break; | |
919 | insn.code |= op1.code << 6; | |
920 | if (op1.additional) | |
921 | size += 2; | |
922 | str = parse_separator (str, &error); | |
923 | if (error) | |
924 | { | |
925 | op2.error = "Missing ','"; | |
926 | break; | |
927 | } | |
928 | str = parse_op (str, &op2); | |
929 | if (op2.error) | |
930 | break; | |
931 | insn.code |= op2.code; | |
932 | if (op2.additional) | |
933 | size += 2; | |
934 | break; | |
935 | ||
936 | case PDP11_OPCODE_REG_DISPL: | |
937 | { | |
938 | char *new; | |
939 | str = parse_reg (str, &op2); | |
940 | if (op2.error) | |
941 | break; | |
942 | insn.code |= op2.code << 6; | |
943 | str = parse_separator (str, &error); | |
944 | if (error) | |
945 | { | |
946 | op1.error = "Missing ','"; | |
947 | break; | |
948 | } | |
949 | new = parse_expression (str, &op1); | |
950 | op1.code = 0; | |
951 | op1.reloc.pc_rel = 1; | |
952 | op1.reloc.type = BFD_RELOC_PDP11_DISP_6_PCREL; | |
953 | if (op1.reloc.exp.X_op != O_symbol) | |
954 | { | |
955 | op1.error = "Symbol expected"; | |
956 | break; | |
957 | } | |
958 | if (op1.code & ~0x3f) | |
959 | { | |
960 | err = "6-bit displacement out of range"; | |
961 | break; | |
962 | } | |
963 | str = new; | |
964 | insn.code |= op1.code; | |
965 | insn.reloc = op1.reloc; | |
966 | } | |
967 | break; | |
5cd4edbe | 968 | |
e135f41b NC |
969 | default: |
970 | BAD_CASE (op->type); | |
971 | } | |
972 | ||
973 | if (op1.error) | |
974 | err = op1.error; | |
975 | else if (op2.error) | |
976 | err = op2.error; | |
977 | else | |
978 | { | |
979 | str = skip_whitespace (str); | |
980 | if (*str) | |
981 | err = "Too many operands"; | |
982 | } | |
983 | ||
984 | { | |
985 | char *to = NULL; | |
5cd4edbe | 986 | |
e135f41b NC |
987 | if (err) |
988 | { | |
989 | as_bad (err); | |
990 | return; | |
991 | } | |
992 | ||
993 | to = frag_more (size); | |
994 | ||
995 | md_number_to_chars (to, insn.code, 2); | |
996 | if (insn.reloc.type != BFD_RELOC_NONE) | |
997 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
998 | &insn.reloc.exp, insn.reloc.pc_rel, insn.reloc.type); | |
999 | to += 2; | |
1000 | ||
1001 | if (op1.additional) | |
1002 | { | |
1003 | md_number_to_chars (to, op1.word, 2); | |
1004 | if (op1.reloc.type != BFD_RELOC_NONE) | |
1005 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1006 | &op1.reloc.exp, op1.reloc.pc_rel, op1.reloc.type); | |
1007 | to += 2; | |
1008 | } | |
1009 | ||
1010 | if (op2.additional) | |
1011 | { | |
1012 | md_number_to_chars (to, op2.word, 2); | |
1013 | if (op2.reloc.type != BFD_RELOC_NONE) | |
1014 | fix_new_exp (frag_now, to - frag_now->fr_literal, 2, | |
1015 | &op2.reloc.exp, op2.reloc.pc_rel, op2.reloc.type); | |
1016 | } | |
1017 | } | |
1018 | } | |
1019 | ||
1020 | int | |
4d5f9b2a NC |
1021 | md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED, |
1022 | segT segment ATTRIBUTE_UNUSED) | |
e135f41b NC |
1023 | { |
1024 | return 0; | |
1025 | } | |
1026 | ||
1027 | void | |
4d5f9b2a NC |
1028 | md_convert_frag (bfd *headers ATTRIBUTE_UNUSED, |
1029 | segT seg ATTRIBUTE_UNUSED, | |
1030 | fragS *fragP ATTRIBUTE_UNUSED) | |
e135f41b NC |
1031 | { |
1032 | } | |
1033 | ||
2b4f075a HPN |
1034 | int md_short_jump_size = 2; |
1035 | int md_long_jump_size = 4; | |
e135f41b NC |
1036 | |
1037 | void | |
4d5f9b2a NC |
1038 | md_create_short_jump (char *ptr ATTRIBUTE_UNUSED, |
1039 | addressT from_addr ATTRIBUTE_UNUSED, | |
1040 | addressT to_addr ATTRIBUTE_UNUSED, | |
1041 | fragS *frag ATTRIBUTE_UNUSED, | |
1042 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
e135f41b NC |
1043 | { |
1044 | } | |
1045 | ||
1046 | void | |
4d5f9b2a NC |
1047 | md_create_long_jump (char *ptr ATTRIBUTE_UNUSED, |
1048 | addressT from_addr ATTRIBUTE_UNUSED, | |
1049 | addressT to_addr ATTRIBUTE_UNUSED, | |
1050 | fragS *frag ATTRIBUTE_UNUSED, | |
1051 | symbolS *to_symbol ATTRIBUTE_UNUSED) | |
e135f41b NC |
1052 | { |
1053 | } | |
1054 | ||
1055 | static int | |
4d5f9b2a | 1056 | set_cpu_model (char *arg) |
e135f41b NC |
1057 | { |
1058 | char buf[4]; | |
1059 | char *model = buf; | |
1060 | ||
1061 | if (arg[0] == 'k') | |
1062 | arg++; | |
1063 | ||
1064 | *model++ = *arg++; | |
1065 | ||
1066 | if (strchr ("abdx", model[-1]) == NULL) | |
1067 | return 0; | |
1068 | ||
1069 | if (model[-1] == 'd') | |
1070 | { | |
4d5f9b2a | 1071 | if (arg[0] == 'f' || arg[0] == 'j') |
e135f41b NC |
1072 | model[-1] = *arg++; |
1073 | } | |
1074 | else if (model[-1] == 'x') | |
1075 | { | |
1076 | if (arg[0] == 't') | |
1077 | model[-1] = *arg++; | |
1078 | } | |
1079 | ||
1080 | if (arg[0] == '-') | |
1081 | arg++; | |
1082 | ||
1083 | if (strncmp (arg, "11", 2) != 0) | |
1084 | return 0; | |
1085 | arg += 2; | |
1086 | ||
1087 | if (arg[0] == '-') | |
1088 | { | |
1089 | if (*++arg == 0) | |
1090 | return 0; | |
1091 | } | |
1092 | ||
4d5f9b2a | 1093 | /* Allow up to two revision letters. */ |
e135f41b NC |
1094 | if (arg[0] != 0) |
1095 | *model++ = *arg++; | |
1096 | if (arg[0] != 0) | |
1097 | *model++ = *arg++; | |
1098 | ||
1099 | *model++ = 0; | |
1100 | ||
1101 | set_option ("no-extensions"); | |
1102 | ||
4d5f9b2a NC |
1103 | /* KA11 (11/15/20). */ |
1104 | if (strncmp (buf, "a", 1) == 0) | |
1105 | return 1; /* No extensions. */ | |
e135f41b | 1106 | |
4d5f9b2a NC |
1107 | /* KB11 (11/45/50/55/70). */ |
1108 | else if (strncmp (buf, "b", 1) == 0) | |
1109 | return set_option ("eis") && set_option ("spl"); | |
e135f41b | 1110 | |
4d5f9b2a NC |
1111 | /* KD11-A (11/35/40). */ |
1112 | else if (strncmp (buf, "da", 2) == 0) | |
e135f41b NC |
1113 | return set_option ("limited-eis"); |
1114 | ||
4d5f9b2a NC |
1115 | /* KD11-B (11/05/10). */ |
1116 | else if (strncmp (buf, "db", 2) == 0 | |
1117 | /* KD11-D (11/04). */ | |
1118 | || strncmp (buf, "dd", 2) == 0) | |
e135f41b NC |
1119 | return 1; /* no extensions */ |
1120 | ||
4d5f9b2a NC |
1121 | /* KD11-E (11/34). */ |
1122 | else if (strncmp (buf, "de", 2) == 0) | |
1123 | return set_option ("eis") && set_option ("mxps"); | |
1124 | ||
1125 | /* KD11-F (11/03). */ | |
1126 | else if (strncmp (buf, "df", 2) == 0 | |
1127 | /* KD11-H (11/03). */ | |
1128 | || strncmp (buf, "dh", 2) == 0 | |
1129 | /* KD11-Q (11/03). */ | |
1130 | || strncmp (buf, "dq", 2) == 0) | |
1131 | return set_option ("limited-eis") && set_option ("mxps"); | |
1132 | ||
1133 | /* KD11-K (11/60). */ | |
1134 | else if (strncmp (buf, "dk", 2) == 0) | |
1135 | return set_option ("eis") | |
1136 | && set_option ("mxps") | |
1137 | && set_option ("ucode"); | |
1138 | ||
1139 | /* KD11-Z (11/44). */ | |
1140 | else if (strncmp (buf, "dz", 2) == 0) | |
1141 | return set_option ("csm") | |
1142 | && set_option ("eis") | |
1143 | && set_option ("mfpt") | |
1144 | && set_option ("mxps") | |
1145 | && set_option ("spl"); | |
1146 | ||
1147 | /* F11 (11/23/24). */ | |
1148 | else if (strncmp (buf, "f", 1) == 0) | |
1149 | return set_option ("eis") | |
1150 | && set_option ("mfpt") | |
1151 | && set_option ("mxps"); | |
1152 | ||
1153 | /* J11 (11/53/73/83/84/93/94). */ | |
1154 | else if (strncmp (buf, "j", 1) == 0) | |
1155 | return set_option ("csm") | |
1156 | && set_option ("eis") | |
1157 | && set_option ("mfpt") | |
1158 | && set_option ("multiproc") | |
1159 | && set_option ("mxps") | |
1160 | && set_option ("spl"); | |
1161 | ||
1162 | /* T11 (11/21). */ | |
1163 | else if (strncmp (buf, "t", 1) == 0) | |
1164 | return set_option ("limited-eis") | |
1165 | && set_option ("mxps"); | |
e135f41b NC |
1166 | |
1167 | else | |
1168 | return 0; | |
1169 | } | |
1170 | ||
1171 | static int | |
4d5f9b2a | 1172 | set_machine_model (char *arg) |
e135f41b | 1173 | { |
4d5f9b2a NC |
1174 | if (strncmp (arg, "pdp-11/", 7) != 0 |
1175 | && strncmp (arg, "pdp11/", 6) != 0 | |
1176 | && strncmp (arg, "11/", 3) != 0) | |
e135f41b NC |
1177 | return 0; |
1178 | ||
1179 | if (strncmp (arg, "pdp", 3) == 0) | |
1180 | arg += 3; | |
1181 | if (arg[0] == '-') | |
1182 | arg++; | |
1183 | if (strncmp (arg, "11/", 3) == 0) | |
1184 | arg += 3; | |
1185 | ||
4d5f9b2a NC |
1186 | if (strcmp (arg, "03") == 0) |
1187 | return set_cpu_model ("kd11f"); | |
1188 | ||
1189 | else if (strcmp (arg, "04") == 0) | |
1190 | return set_cpu_model ("kd11d"); | |
e135f41b | 1191 | |
4d5f9b2a NC |
1192 | else if (strcmp (arg, "05") == 0 |
1193 | || strcmp (arg, "10") == 0) | |
1194 | return set_cpu_model ("kd11b"); | |
e135f41b | 1195 | |
4d5f9b2a NC |
1196 | else if (strcmp (arg, "15") == 0 |
1197 | || strcmp (arg, "20") == 0) | |
1198 | return set_cpu_model ("ka11"); | |
e135f41b | 1199 | |
4d5f9b2a NC |
1200 | else if (strcmp (arg, "21") == 0) |
1201 | return set_cpu_model ("t11"); | |
e135f41b | 1202 | |
4d5f9b2a NC |
1203 | else if (strcmp (arg, "23") == 0 |
1204 | || strcmp (arg, "24") == 0) | |
1205 | return set_cpu_model ("f11"); | |
e135f41b | 1206 | |
4d5f9b2a NC |
1207 | else if (strcmp (arg, "34") == 0 |
1208 | || strcmp (arg, "34a") == 0) | |
1209 | return set_cpu_model ("kd11e"); | |
e135f41b | 1210 | |
4d5f9b2a NC |
1211 | else if (strcmp (arg, "35") == 0 |
1212 | || strcmp (arg, "40") == 0) | |
1213 | return set_cpu_model ("kd11da"); | |
e135f41b | 1214 | |
4d5f9b2a NC |
1215 | else if (strcmp (arg, "44") == 0) |
1216 | return set_cpu_model ("kd11dz"); | |
e135f41b | 1217 | |
4d5f9b2a NC |
1218 | else if (strcmp (arg, "45") == 0 |
1219 | || strcmp (arg, "50") == 0 | |
1220 | || strcmp (arg, "55") == 0 | |
1221 | || strcmp (arg, "70") == 0) | |
1222 | return set_cpu_model ("kb11"); | |
e135f41b | 1223 | |
4d5f9b2a NC |
1224 | else if (strcmp (arg, "60") == 0) |
1225 | return set_cpu_model ("kd11k"); | |
e135f41b | 1226 | |
4d5f9b2a NC |
1227 | else if (strcmp (arg, "53") == 0 |
1228 | || strcmp (arg, "73") == 0 | |
1229 | || strcmp (arg, "83") == 0 | |
1230 | || strcmp (arg, "84") == 0 | |
1231 | || strcmp (arg, "93") == 0 | |
1232 | || strcmp (arg, "94") == 0) | |
1233 | return set_cpu_model ("j11") | |
1234 | && set_option ("fpp"); | |
e135f41b | 1235 | |
e135f41b NC |
1236 | else |
1237 | return 0; | |
1238 | } | |
1239 | ||
5a38dc70 | 1240 | const char *md_shortopts = "m:"; |
e135f41b NC |
1241 | |
1242 | struct option md_longopts[] = | |
1243 | { | |
1244 | #define OPTION_CPU 257 | |
1245 | { "cpu", required_argument, NULL, OPTION_CPU }, | |
1246 | #define OPTION_MACHINE 258 | |
1247 | { "machine", required_argument, NULL, OPTION_MACHINE }, | |
1248 | #define OPTION_PIC 259 | |
1249 | { "pic", no_argument, NULL, OPTION_PIC }, | |
1250 | { NULL, no_argument, NULL, 0 } | |
1251 | }; | |
1252 | ||
07726851 | 1253 | size_t md_longopts_size = sizeof (md_longopts); |
e135f41b | 1254 | |
4d5f9b2a NC |
1255 | /* Invocation line includes a switch not recognized by the base assembler. |
1256 | See if it's a processor-specific option. */ | |
e135f41b NC |
1257 | |
1258 | int | |
4d5f9b2a | 1259 | md_parse_option (int c, char *arg) |
e135f41b NC |
1260 | { |
1261 | init_defaults (); | |
1262 | ||
1263 | switch (c) | |
1264 | { | |
1265 | case 'm': | |
1266 | if (set_option (arg)) | |
1267 | return 1; | |
1268 | if (set_cpu_model (arg)) | |
1269 | return 1; | |
1270 | if (set_machine_model (arg)) | |
1271 | return 1; | |
1272 | break; | |
1273 | ||
1274 | case OPTION_CPU: | |
1275 | if (set_cpu_model (arg)) | |
1276 | return 1; | |
1277 | break; | |
1278 | ||
1279 | case OPTION_MACHINE: | |
1280 | if (set_machine_model (arg)) | |
1281 | return 1; | |
1282 | break; | |
1283 | ||
1284 | case OPTION_PIC: | |
1285 | if (set_option ("pic")) | |
1286 | return 1; | |
1287 | break; | |
1288 | ||
1289 | default: | |
1290 | break; | |
1291 | } | |
1292 | ||
e135f41b NC |
1293 | return 0; |
1294 | } | |
1295 | ||
e135f41b | 1296 | void |
4d5f9b2a | 1297 | md_show_usage (FILE *stream) |
e135f41b NC |
1298 | { |
1299 | fprintf (stream, "\ | |
1300 | \n\ | |
1301 | PDP-11 instruction set extentions:\n\ | |
1302 | \n\ | |
1303 | -m(no-)cis allow (disallow) commersial instruction set\n\ | |
1304 | -m(no-)csm allow (disallow) CSM instruction\n\ | |
1305 | -m(no-)eis allow (disallow) full extended instruction set\n\ | |
1306 | -m(no-)fis allow (disallow) KEV11 floating-point instructions\n\ | |
1307 | -m(no-)fpp allow (disallow) FP-11 floating-point instructions\n\ | |
1308 | -m(no-)fpu allow (disallow) FP-11 floating-point instructions\n\ | |
1309 | -m(no-)limited-eis allow (disallow) limited extended instruction set\n\ | |
1310 | -m(no-)mfpt allow (disallow) processor type instruction\n\ | |
1311 | -m(no-)multiproc allow (disallow) multiprocessor instructions\n\ | |
1312 | -m(no-)mxps allow (disallow) processor status instructions\n\ | |
1313 | -m(no-)spl allow (disallow) SPL instruction\n\ | |
1314 | -m(no-)ucode allow (disallow) microcode instructions\n\ | |
1315 | -mall-extensions allow all instruction set extensions\n\ | |
1316 | (this is the default)\n\ | |
1317 | -mno-extentions disallow all instruction set extensions\n\ | |
1318 | -pic generate position-indepenent code\n\ | |
1319 | \n\ | |
1320 | PDP-11 CPU model options:\n\ | |
1321 | \n\ | |
1322 | -mka11* KA11 CPU. base line instruction set only\n\ | |
1323 | -mkb11* KB11 CPU. enable full EIS and SPL\n\ | |
1324 | -mkd11a* KD11-A CPU. enable limited EIS\n\ | |
1325 | -mkd11b* KD11-B CPU. base line instruction set only\n\ | |
1326 | -mkd11d* KD11-D CPU. base line instruction set only\n\ | |
1327 | -mkd11e* KD11-E CPU. enable full EIS, MTPS, and MFPS\n\ | |
1328 | -mkd11f* KD11-F CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1329 | -mkd11h* KD11-H CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1330 | -mkd11q* KD11-Q CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1331 | -mkd11k* KD11-K CPU. enable full EIS, MTPS, MFPS, LDUB, MED,\n\ | |
1332 | XFC, and MFPT\n\ | |
1333 | -mkd11z* KD11-Z CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1334 | and CSM\n\ | |
1335 | -mf11* F11 CPU. enable full EIS, MFPS, MTPS, and MFPT\n\ | |
1336 | -mj11* J11 CPU. enable full EIS, MTPS, MFPS, MFPT, SPL,\n\ | |
1337 | CSM, TSTSET, and WRTLCK\n\ | |
1338 | -mt11* T11 CPU. enable limited EIS, MTPS, and MFPS\n\ | |
1339 | \n\ | |
1340 | PDP-11 machine model options:\n\ | |
1341 | \n\ | |
1342 | -m11/03 same as -mkd11f\n\ | |
1343 | -m11/04 same as -mkd11d\n\ | |
1344 | -m11/05 same as -mkd11b\n\ | |
1345 | -m11/10 same as -mkd11b\n\ | |
1346 | -m11/15 same as -mka11\n\ | |
1347 | -m11/20 same as -mka11\n\ | |
1348 | -m11/21 same as -mt11\n\ | |
1349 | -m11/23 same as -mf11\n\ | |
1350 | -m11/24 same as -mf11\n\ | |
1351 | -m11/34 same as -mkd11e\n\ | |
1352 | -m11/34a same as -mkd11e -mfpp\n\ | |
1353 | -m11/35 same as -mkd11a\n\ | |
1354 | -m11/40 same as -mkd11a\n\ | |
1355 | -m11/44 same as -mkd11z\n\ | |
1356 | -m11/45 same as -mkb11\n\ | |
1357 | -m11/50 same as -mkb11\n\ | |
1358 | -m11/53 same as -mj11\n\ | |
1359 | -m11/55 same as -mkb11\n\ | |
1360 | -m11/60 same as -mkd11k\n\ | |
1361 | -m11/70 same as -mkb11\n\ | |
1362 | -m11/73 same as -mj11\n\ | |
1363 | -m11/83 same as -mj11\n\ | |
1364 | -m11/84 same as -mj11\n\ | |
1365 | -m11/93 same as -mj11\n\ | |
1366 | -m11/94 same as -mj11\n\ | |
1367 | "); | |
1368 | } | |
1369 | ||
1370 | symbolS * | |
4d5f9b2a | 1371 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
e135f41b NC |
1372 | { |
1373 | return 0; | |
1374 | } | |
1375 | ||
1376 | valueT | |
4d5f9b2a NC |
1377 | md_section_align (segT segment ATTRIBUTE_UNUSED, |
1378 | valueT size) | |
e135f41b NC |
1379 | { |
1380 | return (size + 1) & ~1; | |
1381 | } | |
1382 | ||
1383 | long | |
4d5f9b2a | 1384 | md_pcrel_from (fixS *fixP) |
e135f41b NC |
1385 | { |
1386 | return fixP->fx_frag->fr_address + fixP->fx_where + fixP->fx_size; | |
1387 | } | |
1388 | ||
1389 | /* Translate internal representation of relocation info to BFD target | |
1390 | format. */ | |
4d5f9b2a | 1391 | |
e135f41b | 1392 | arelent * |
4d5f9b2a NC |
1393 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, |
1394 | fixS *fixp) | |
e135f41b NC |
1395 | { |
1396 | arelent *reloc; | |
1397 | bfd_reloc_code_real_type code; | |
1398 | ||
4d5f9b2a | 1399 | reloc = xmalloc (sizeof (* reloc)); |
e135f41b | 1400 | |
4d5f9b2a | 1401 | reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *)); |
e135f41b NC |
1402 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
1403 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
1404 | ||
55cf6793 | 1405 | /* This is taken account for in md_apply_fix(). */ |
e135f41b NC |
1406 | reloc->addend = -symbol_get_bfdsym (fixp->fx_addsy)->section->vma; |
1407 | ||
1408 | switch (fixp->fx_r_type) | |
1409 | { | |
1410 | case BFD_RELOC_16: | |
1411 | if (fixp->fx_pcrel) | |
1412 | code = BFD_RELOC_16_PCREL; | |
1413 | else | |
1414 | code = BFD_RELOC_16; | |
1415 | break; | |
1416 | ||
1417 | case BFD_RELOC_16_PCREL: | |
1418 | code = BFD_RELOC_16_PCREL; | |
1419 | break; | |
1420 | ||
1421 | default: | |
1422 | BAD_CASE (fixp->fx_r_type); | |
1423 | return NULL; | |
1424 | } | |
1425 | ||
1426 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); | |
1427 | ||
1428 | if (reloc->howto == NULL) | |
1429 | { | |
1430 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1431 | "Can not represent %s relocation in this object file format", | |
1432 | bfd_get_reloc_code_name (code)); | |
1433 | return NULL; | |
1434 | } | |
1435 | ||
1436 | return reloc; | |
1437 | } | |
1438 | ||
1439 | void | |
4d5f9b2a | 1440 | pseudo_bss (int c ATTRIBUTE_UNUSED) |
e135f41b NC |
1441 | { |
1442 | int temp; | |
1443 | ||
1444 | temp = get_absolute_expression (); | |
1445 | subseg_set (bss_section, temp); | |
1446 | demand_empty_rest_of_line (); | |
1447 | } | |
1448 | ||
1449 | void | |
4d5f9b2a | 1450 | pseudo_even (int c ATTRIBUTE_UNUSED) |
e135f41b NC |
1451 | { |
1452 | int alignment = 1; /* 2^1 */ | |
1453 | frag_align (alignment, 0, 1); | |
1454 | record_alignment (now_seg, alignment); | |
1455 | } | |
499ac353 NC |
1456 | |
1457 | char * | |
1458 | md_atof (int type, char * litP, int * sizeP) | |
1459 | { | |
1460 | return vax_md_atof (type, litP, sizeP); | |
1461 | } |