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Commit | Line | Data |
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87e6d782 NC |
1 | /* Assembler interface for targets using CGEN. -*- C -*- |
2 | CGEN: Cpu tools GENerator | |
3 | ||
47b0e7ad NC |
4 | THIS FILE IS MACHINE GENERATED WITH CGEN. |
5 | - the resultant file is machine generated, cgen-asm.in isn't | |
87e6d782 | 6 | |
73589c9d | 7 | Copyright 1996-2014 Free Software Foundation, Inc. |
87e6d782 | 8 | |
9b201bb5 | 9 | This file is part of libopcodes. |
87e6d782 | 10 | |
9b201bb5 | 11 | This library is free software; you can redistribute it and/or modify |
47b0e7ad | 12 | it under the terms of the GNU General Public License as published by |
9b201bb5 | 13 | the Free Software Foundation; either version 3, or (at your option) |
47b0e7ad | 14 | any later version. |
87e6d782 | 15 | |
9b201bb5 NC |
16 | It is distributed in the hope that it will be useful, but WITHOUT |
17 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
18 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
19 | License for more details. | |
87e6d782 | 20 | |
47b0e7ad NC |
21 | You should have received a copy of the GNU General Public License |
22 | along with this program; if not, write to the Free Software Foundation, Inc., | |
23 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |
87e6d782 | 24 | |
9b201bb5 | 25 | |
87e6d782 NC |
26 | /* ??? Eventually more and more of this stuff can go to cpu-independent files. |
27 | Keep that in mind. */ | |
28 | ||
29 | #include "sysdep.h" | |
87e6d782 NC |
30 | #include <stdio.h> |
31 | #include "ansidecl.h" | |
32 | #include "bfd.h" | |
33 | #include "symcat.h" | |
73589c9d CS |
34 | #include "or1k-desc.h" |
35 | #include "or1k-opc.h" | |
87e6d782 | 36 | #include "opintl.h" |
fc7bc883 | 37 | #include "xregex.h" |
fc05c67f | 38 | #include "libiberty.h" |
37111cc7 | 39 | #include "safe-ctype.h" |
87e6d782 | 40 | |
37111cc7 | 41 | #undef min |
87e6d782 | 42 | #define min(a,b) ((a) < (b) ? (a) : (b)) |
37111cc7 | 43 | #undef max |
87e6d782 NC |
44 | #define max(a,b) ((a) > (b) ? (a) : (b)) |
45 | ||
46 | static const char * parse_insn_normal | |
ffead7ae | 47 | (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *); |
87e6d782 | 48 | \f |
37111cc7 | 49 | /* -- assembler routines inserted here. */ |
87e6d782 NC |
50 | |
51 | /* -- asm.c */ | |
52 | ||
47b0e7ad | 53 | static const char * MISSING_CLOSING_PARENTHESIS = N_("missing `)'"); |
87e6d782 | 54 | |
47b0e7ad | 55 | #define CGEN_VERBOSE_ASSEMBLER_ERRORS |
0e2ee3ca | 56 | |
73589c9d CS |
57 | static const char * |
58 | parse_disp26 (CGEN_CPU_DESC cd, | |
59 | const char ** strp, | |
60 | int opindex, | |
61 | int opinfo, | |
62 | enum cgen_parse_operand_result * resultp, | |
63 | bfd_vma * valuep) | |
87e6d782 | 64 | { |
73589c9d CS |
65 | const char *errmsg = NULL; |
66 | enum cgen_parse_operand_result result_type; | |
87e6d782 | 67 | |
73589c9d CS |
68 | if (strncasecmp (*strp, "plt(", 4) == 0) |
69 | { | |
70 | bfd_vma value; | |
71 | ||
72 | *strp += 4; | |
73 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_OR1K_PLT26, | |
74 | & result_type, & value); | |
75 | if (**strp != ')') | |
76 | return MISSING_CLOSING_PARENTHESIS; | |
77 | ++*strp; | |
78 | if (errmsg == NULL | |
79 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
80 | value = (value >> 2) & 0xffff; | |
81 | *valuep = value; | |
82 | return errmsg; | |
83 | } | |
84 | return cgen_parse_address (cd, strp, opindex, opinfo, resultp, valuep); | |
85 | } | |
87e6d782 NC |
86 | |
87 | static const char * | |
73589c9d | 88 | parse_simm16 (CGEN_CPU_DESC cd, const char ** strp, int opindex, long * valuep) |
87e6d782 NC |
89 | { |
90 | const char *errmsg; | |
91 | enum cgen_parse_operand_result result_type; | |
73589c9d | 92 | long ret; |
87e6d782 NC |
93 | |
94 | if (**strp == '#') | |
95 | ++*strp; | |
96 | ||
97 | if (strncasecmp (*strp, "hi(", 3) == 0) | |
98 | { | |
8f807746 | 99 | bfd_vma value; |
87e6d782 | 100 | |
8f807746 | 101 | *strp += 3; |
33b71eeb | 102 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16, |
73589c9d CS |
103 | & result_type, & value); |
104 | if (**strp != ')') | |
105 | errmsg = MISSING_CLOSING_PARENTHESIS; | |
106 | ++*strp; | |
107 | ||
108 | ret = value; | |
109 | ||
110 | if (errmsg == NULL | |
111 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
112 | { | |
113 | ret >>= 16; | |
114 | ret &= 0xffff; | |
115 | ret = (ret ^ 0x8000) - 0x8000; | |
116 | } | |
117 | } | |
118 | else if (strncasecmp (*strp, "lo(", 3) == 0) | |
119 | { | |
120 | bfd_vma value; | |
121 | ||
122 | *strp += 3; | |
123 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16, | |
124 | & result_type, & value); | |
87e6d782 | 125 | if (**strp != ')') |
47b0e7ad | 126 | return MISSING_CLOSING_PARENTHESIS; |
73589c9d CS |
127 | ++*strp; |
128 | ||
129 | ret = value; | |
130 | ||
131 | if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
132 | { | |
133 | ret &= 0xffff; | |
134 | ret = (ret ^ 0x8000) - 0x8000; | |
135 | } | |
136 | } | |
137 | else if (strncasecmp (*strp, "got(", 4) == 0) | |
138 | { | |
139 | bfd_vma value; | |
8f807746 | 140 | |
73589c9d CS |
141 | *strp += 4; |
142 | errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_OR1K_GOT16, | |
143 | & result_type, & value); | |
144 | if (**strp != ')') | |
145 | return MISSING_CLOSING_PARENTHESIS; | |
87e6d782 NC |
146 | ++*strp; |
147 | if (errmsg == NULL | |
148 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
73589c9d CS |
149 | value &= 0xffff; |
150 | *valuep = value; | |
151 | return errmsg; | |
87e6d782 | 152 | } |
73589c9d | 153 | else if (strncasecmp (*strp, "gotpchi(", 8) == 0) |
87e6d782 | 154 | { |
73589c9d | 155 | bfd_vma value; |
33b71eeb | 156 | |
73589c9d CS |
157 | *strp += 8; |
158 | errmsg = cgen_parse_address (cd, strp, opindex, | |
159 | BFD_RELOC_OR1K_GOTPC_HI16, | |
160 | & result_type, & value); | |
161 | if (**strp != ')') | |
162 | return MISSING_CLOSING_PARENTHESIS; | |
163 | ++*strp; | |
164 | if (errmsg == NULL | |
165 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
166 | value = (value >> 16) & 0xffff; | |
167 | *valuep = value; | |
168 | return errmsg; | |
169 | } | |
170 | else if (strncasecmp (*strp, "gotpclo(", 8) == 0) | |
171 | { | |
172 | bfd_vma value; | |
33b71eeb | 173 | |
73589c9d CS |
174 | *strp += 8; |
175 | errmsg = cgen_parse_address (cd, strp, opindex, | |
176 | BFD_RELOC_OR1K_GOTPC_LO16, | |
177 | &result_type, &value); | |
178 | if (**strp != ')') | |
179 | return MISSING_CLOSING_PARENTHESIS; | |
180 | ++*strp; | |
181 | if (errmsg == NULL | |
182 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
183 | value &= 0xffff; | |
184 | *valuep = value; | |
185 | return errmsg; | |
87e6d782 | 186 | } |
73589c9d CS |
187 | else if (strncasecmp (*strp, "gotoffhi(", 9) == 0) |
188 | { | |
189 | bfd_vma value; | |
8f807746 | 190 | |
73589c9d CS |
191 | *strp += 9; |
192 | errmsg = cgen_parse_address (cd, strp, opindex, | |
193 | BFD_RELOC_OR1K_GOTOFF_HI16, | |
194 | & result_type, & value); | |
87e6d782 | 195 | |
73589c9d CS |
196 | if (**strp != ')') |
197 | return MISSING_CLOSING_PARENTHESIS; | |
198 | ++*strp; | |
199 | if (errmsg == NULL | |
200 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
201 | value = (value >> 16) & 0xffff; | |
202 | *valuep = value; | |
203 | return errmsg; | |
204 | } | |
205 | else if (strncasecmp (*strp, "gotofflo(", 9) == 0) | |
206 | { | |
207 | bfd_vma value; | |
87e6d782 | 208 | |
73589c9d CS |
209 | *strp += 9; |
210 | errmsg = cgen_parse_address (cd, strp, opindex, | |
211 | BFD_RELOC_OR1K_GOTOFF_LO16, | |
212 | &result_type, &value); | |
213 | if (**strp != ')') | |
214 | return MISSING_CLOSING_PARENTHESIS; | |
215 | ++*strp; | |
216 | if (errmsg == NULL | |
217 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
218 | value &= 0xffff; | |
219 | *valuep = value; | |
220 | return errmsg; | |
221 | } | |
222 | else if (strncasecmp (*strp, "tlsgdhi(", 8) == 0) | |
223 | { | |
224 | bfd_vma value; | |
87e6d782 | 225 | |
73589c9d CS |
226 | *strp += 8; |
227 | errmsg = cgen_parse_address (cd, strp, opindex, | |
228 | BFD_RELOC_OR1K_TLS_GD_HI16, | |
229 | & result_type, & value); | |
87e6d782 | 230 | |
73589c9d CS |
231 | if (**strp != ')') |
232 | return MISSING_CLOSING_PARENTHESIS; | |
233 | ++*strp; | |
234 | if (errmsg == NULL | |
235 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
236 | value = (value >> 16) & 0xffff; | |
237 | *valuep = value; | |
238 | return errmsg; | |
239 | } | |
240 | else if (strncasecmp (*strp, "tlsgdlo(", 8) == 0) | |
87e6d782 | 241 | { |
8f807746 | 242 | bfd_vma value; |
87e6d782 | 243 | |
73589c9d CS |
244 | *strp += 8; |
245 | errmsg = cgen_parse_address (cd, strp, opindex, | |
246 | BFD_RELOC_OR1K_TLS_GD_LO16, | |
247 | &result_type, &value); | |
248 | if (**strp != ')') | |
249 | return MISSING_CLOSING_PARENTHESIS; | |
250 | ++*strp; | |
251 | if (errmsg == NULL | |
252 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
253 | value &= 0xffff; | |
254 | *valuep = value; | |
255 | return errmsg; | |
256 | } | |
257 | else if (strncasecmp (*strp, "tlsldmhi(", 9) == 0) | |
258 | { | |
259 | bfd_vma value; | |
260 | ||
261 | *strp += 9; | |
262 | errmsg = cgen_parse_address (cd, strp, opindex, | |
263 | BFD_RELOC_OR1K_TLS_LDM_HI16, | |
264 | & result_type, & value); | |
265 | ||
87e6d782 | 266 | if (**strp != ')') |
47b0e7ad | 267 | return MISSING_CLOSING_PARENTHESIS; |
73589c9d CS |
268 | ++*strp; |
269 | if (errmsg == NULL | |
270 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
271 | value = (value >> 16) & 0xffff; | |
272 | *valuep = value; | |
273 | return errmsg; | |
274 | } | |
275 | else if (strncasecmp (*strp, "tlsldmlo(", 9) == 0) | |
276 | { | |
277 | bfd_vma value; | |
87e6d782 | 278 | |
73589c9d CS |
279 | *strp += 9; |
280 | errmsg = cgen_parse_address (cd, strp, opindex, | |
281 | BFD_RELOC_OR1K_TLS_LDM_LO16, | |
282 | &result_type, &value); | |
283 | if (**strp != ')') | |
284 | return MISSING_CLOSING_PARENTHESIS; | |
8f807746 | 285 | ++*strp; |
73589c9d CS |
286 | if (errmsg == NULL |
287 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
288 | value &= 0xffff; | |
289 | *valuep = value; | |
290 | return errmsg; | |
87e6d782 | 291 | } |
73589c9d | 292 | else if (strncasecmp (*strp, "dtpoffhi(", 9) == 0) |
8f807746 | 293 | { |
73589c9d | 294 | bfd_vma value; |
33b71eeb | 295 | |
73589c9d CS |
296 | *strp += 9; |
297 | errmsg = cgen_parse_address (cd, strp, opindex, | |
298 | BFD_RELOC_OR1K_TLS_LDO_HI16, | |
299 | & result_type, & value); | |
33b71eeb | 300 | |
73589c9d CS |
301 | if (**strp != ')') |
302 | return MISSING_CLOSING_PARENTHESIS; | |
303 | ++*strp; | |
304 | if (errmsg == NULL | |
305 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
306 | value = (value >> 16) & 0xffff; | |
307 | *valuep = value; | |
308 | return errmsg; | |
309 | } | |
310 | else if (strncasecmp (*strp, "dtpofflo(", 9) == 0) | |
311 | { | |
312 | bfd_vma value; | |
313 | ||
314 | *strp += 9; | |
315 | errmsg = cgen_parse_address (cd, strp, opindex, | |
316 | BFD_RELOC_OR1K_TLS_LDO_LO16, | |
317 | &result_type, &value); | |
318 | if (**strp != ')') | |
319 | return MISSING_CLOSING_PARENTHESIS; | |
320 | ++*strp; | |
321 | if (errmsg == NULL | |
322 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
323 | value &= 0xffff; | |
324 | *valuep = value; | |
325 | return errmsg; | |
8f807746 | 326 | } |
73589c9d CS |
327 | else if (strncasecmp (*strp, "gottpoffhi(", 11) == 0) |
328 | { | |
329 | bfd_vma value; | |
8f807746 | 330 | |
73589c9d CS |
331 | *strp += 11; |
332 | errmsg = cgen_parse_address (cd, strp, opindex, | |
333 | BFD_RELOC_OR1K_TLS_IE_HI16, | |
334 | & result_type, & value); | |
335 | ||
336 | if (**strp != ')') | |
337 | return MISSING_CLOSING_PARENTHESIS; | |
338 | ++*strp; | |
339 | if (errmsg == NULL | |
340 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
341 | value = (value >> 16) & 0xffff; | |
342 | *valuep = value; | |
343 | return errmsg; | |
344 | } | |
345 | else if (strncasecmp (*strp, "gottpofflo(", 11) == 0) | |
346 | { | |
347 | bfd_vma value; | |
348 | ||
349 | *strp += 11; | |
350 | errmsg = cgen_parse_address (cd, strp, opindex, | |
351 | BFD_RELOC_OR1K_TLS_IE_LO16, | |
352 | &result_type, &value); | |
353 | if (**strp != ')') | |
354 | return MISSING_CLOSING_PARENTHESIS; | |
355 | ++*strp; | |
356 | if (errmsg == NULL | |
357 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
358 | value &= 0xffff; | |
359 | *valuep = value; | |
360 | return errmsg; | |
361 | } | |
362 | else if (strncasecmp (*strp, "tpoffhi(", 8) == 0) | |
363 | { | |
364 | bfd_vma value; | |
365 | ||
366 | *strp += 8; | |
367 | errmsg = cgen_parse_address (cd, strp, opindex, | |
368 | BFD_RELOC_OR1K_TLS_LE_HI16, | |
369 | & result_type, & value); | |
370 | ||
371 | if (**strp != ')') | |
372 | return MISSING_CLOSING_PARENTHESIS; | |
373 | ++*strp; | |
374 | if (errmsg == NULL | |
375 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
376 | value = (value >> 16) & 0xffff; | |
377 | *valuep = value; | |
378 | return errmsg; | |
379 | } | |
380 | else if (strncasecmp (*strp, "tpofflo(", 8) == 0) | |
381 | { | |
382 | bfd_vma value; | |
383 | ||
384 | *strp += 8; | |
385 | errmsg = cgen_parse_address (cd, strp, opindex, | |
386 | BFD_RELOC_OR1K_TLS_LE_LO16, | |
387 | &result_type, &value); | |
388 | if (**strp != ')') | |
389 | return MISSING_CLOSING_PARENTHESIS; | |
390 | ++*strp; | |
391 | if (errmsg == NULL | |
392 | && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER) | |
393 | value &= 0xffff; | |
394 | *valuep = value; | |
395 | return errmsg; | |
396 | } | |
397 | else | |
398 | { | |
399 | long value; | |
400 | errmsg = cgen_parse_signed_integer (cd, strp, opindex, &value); | |
401 | ret = value; | |
402 | } | |
403 | ||
404 | if (errmsg == NULL) | |
405 | *valuep = ret; | |
406 | ||
407 | return errmsg; | |
408 | } | |
409 | ||
410 | static const char * | |
411 | parse_uimm16 (CGEN_CPU_DESC cd, const char ** strp, int opindex, unsigned long * valuep) | |
412 | { | |
413 | const char *errmsg = parse_simm16(cd, strp, opindex, (long *) valuep); | |
414 | if (errmsg == NULL) | |
415 | *valuep &= 0xffff; | |
87e6d782 NC |
416 | return errmsg; |
417 | } | |
418 | ||
419 | /* -- */ | |
420 | ||
73589c9d | 421 | const char * or1k_cgen_parse_operand |
47b0e7ad | 422 | (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *); |
0e2ee3ca | 423 | |
87e6d782 NC |
424 | /* Main entry point for operand parsing. |
425 | ||
426 | This function is basically just a big switch statement. Earlier versions | |
427 | used tables to look up the function to use, but | |
428 | - if the table contains both assembler and disassembler functions then | |
429 | the disassembler contains much of the assembler and vice-versa, | |
430 | - there's a lot of inlining possibilities as things grow, | |
431 | - using a switch statement avoids the function call overhead. | |
432 | ||
433 | This function could be moved into `parse_insn_normal', but keeping it | |
434 | separate makes clear the interface between `parse_insn_normal' and each of | |
9a2e995d | 435 | the handlers. */ |
87e6d782 NC |
436 | |
437 | const char * | |
73589c9d | 438 | or1k_cgen_parse_operand (CGEN_CPU_DESC cd, |
47b0e7ad NC |
439 | int opindex, |
440 | const char ** strp, | |
441 | CGEN_FIELDS * fields) | |
87e6d782 NC |
442 | { |
443 | const char * errmsg = NULL; | |
444 | /* Used by scalar operands that still need to be parsed. */ | |
fc05c67f | 445 | long junk ATTRIBUTE_UNUSED; |
87e6d782 NC |
446 | |
447 | switch (opindex) | |
448 | { | |
73589c9d | 449 | case OR1K_OPERAND_DISP26 : |
87e6d782 | 450 | { |
9494d739 | 451 | bfd_vma value = 0; |
73589c9d | 452 | errmsg = parse_disp26 (cd, strp, OR1K_OPERAND_DISP26, 0, NULL, & value); |
87e6d782 NC |
453 | fields->f_disp26 = value; |
454 | } | |
455 | break; | |
73589c9d CS |
456 | case OR1K_OPERAND_RA : |
457 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_gpr, & fields->f_r2); | |
458 | break; | |
459 | case OR1K_OPERAND_RADF : | |
460 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_fdr, & fields->f_r1); | |
87e6d782 | 461 | break; |
73589c9d CS |
462 | case OR1K_OPERAND_RASF : |
463 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_fsr, & fields->f_r2); | |
87e6d782 | 464 | break; |
73589c9d CS |
465 | case OR1K_OPERAND_RB : |
466 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_gpr, & fields->f_r3); | |
87e6d782 | 467 | break; |
73589c9d CS |
468 | case OR1K_OPERAND_RBDF : |
469 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_fdr, & fields->f_r1); | |
87e6d782 | 470 | break; |
73589c9d CS |
471 | case OR1K_OPERAND_RBSF : |
472 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_fsr, & fields->f_r3); | |
87e6d782 | 473 | break; |
73589c9d CS |
474 | case OR1K_OPERAND_RD : |
475 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_gpr, & fields->f_r1); | |
87e6d782 | 476 | break; |
73589c9d CS |
477 | case OR1K_OPERAND_RDDF : |
478 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_fdr, & fields->f_r1); | |
87e6d782 | 479 | break; |
73589c9d CS |
480 | case OR1K_OPERAND_RDSF : |
481 | errmsg = cgen_parse_keyword (cd, strp, & or1k_cgen_opval_h_fsr, & fields->f_r1); | |
87e6d782 | 482 | break; |
73589c9d CS |
483 | case OR1K_OPERAND_SIMM16 : |
484 | errmsg = parse_simm16 (cd, strp, OR1K_OPERAND_SIMM16, (long *) (& fields->f_simm16)); | |
87e6d782 | 485 | break; |
73589c9d CS |
486 | case OR1K_OPERAND_SIMM16_SPLIT : |
487 | errmsg = parse_simm16 (cd, strp, OR1K_OPERAND_SIMM16_SPLIT, (long *) (& fields->f_simm16_split)); | |
87e6d782 | 488 | break; |
73589c9d CS |
489 | case OR1K_OPERAND_UIMM16 : |
490 | errmsg = parse_uimm16 (cd, strp, OR1K_OPERAND_UIMM16, (unsigned long *) (& fields->f_uimm16)); | |
491 | break; | |
492 | case OR1K_OPERAND_UIMM16_SPLIT : | |
493 | errmsg = parse_uimm16 (cd, strp, OR1K_OPERAND_UIMM16_SPLIT, (unsigned long *) (& fields->f_uimm16_split)); | |
494 | break; | |
495 | case OR1K_OPERAND_UIMM6 : | |
496 | errmsg = cgen_parse_unsigned_integer (cd, strp, OR1K_OPERAND_UIMM6, (unsigned long *) (& fields->f_uimm6)); | |
87e6d782 NC |
497 | break; |
498 | ||
499 | default : | |
500 | /* xgettext:c-format */ | |
501 | fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex); | |
502 | abort (); | |
503 | } | |
504 | ||
505 | return errmsg; | |
506 | } | |
507 | ||
73589c9d | 508 | cgen_parse_fn * const or1k_cgen_parse_handlers[] = |
87e6d782 NC |
509 | { |
510 | parse_insn_normal, | |
511 | }; | |
512 | ||
513 | void | |
73589c9d | 514 | or1k_cgen_init_asm (CGEN_CPU_DESC cd) |
87e6d782 | 515 | { |
73589c9d CS |
516 | or1k_cgen_init_opcode_table (cd); |
517 | or1k_cgen_init_ibld_table (cd); | |
518 | cd->parse_handlers = & or1k_cgen_parse_handlers[0]; | |
519 | cd->parse_operand = or1k_cgen_parse_operand; | |
1620f33d AM |
520 | #ifdef CGEN_ASM_INIT_HOOK |
521 | CGEN_ASM_INIT_HOOK | |
522 | #endif | |
87e6d782 NC |
523 | } |
524 | ||
fc7bc883 RH |
525 | \f |
526 | ||
37111cc7 | 527 | /* Regex construction routine. |
fc7bc883 | 528 | |
37111cc7 NC |
529 | This translates an opcode syntax string into a regex string, |
530 | by replacing any non-character syntax element (such as an | |
531 | opcode) with the pattern '.*' | |
fc7bc883 | 532 | |
37111cc7 | 533 | It then compiles the regex and stores it in the opcode, for |
73589c9d | 534 | later use by or1k_cgen_assemble_insn |
fc7bc883 | 535 | |
37111cc7 | 536 | Returns NULL for success, an error message for failure. */ |
fc7bc883 | 537 | |
73589c9d CS |
538 | char * |
539 | or1k_cgen_build_insn_regex (CGEN_INSN *insn) | |
540 | { | |
fc05c67f | 541 | CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn); |
fc7bc883 | 542 | const char *mnem = CGEN_INSN_MNEMONIC (insn); |
fc7bc883 RH |
543 | char rxbuf[CGEN_MAX_RX_ELEMENTS]; |
544 | char *rx = rxbuf; | |
545 | const CGEN_SYNTAX_CHAR_TYPE *syn; | |
546 | int reg_err; | |
547 | ||
548 | syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc)); | |
549 | ||
f3a55c17 NC |
550 | /* Mnemonics come first in the syntax string. */ |
551 | if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) | |
552 | return _("missing mnemonic in syntax string"); | |
fc7bc883 RH |
553 | ++syn; |
554 | ||
f3a55c17 NC |
555 | /* Generate a case sensitive regular expression that emulates case |
556 | insensitive matching in the "C" locale. We cannot generate a case | |
557 | insensitive regular expression because in Turkish locales, 'i' and 'I' | |
558 | are not equal modulo case conversion. */ | |
fc7bc883 | 559 | |
f3a55c17 NC |
560 | /* Copy the literal mnemonic out of the insn. */ |
561 | for (; *mnem; mnem++) | |
562 | { | |
563 | char c = *mnem; | |
564 | ||
565 | if (ISALPHA (c)) | |
566 | { | |
567 | *rx++ = '['; | |
568 | *rx++ = TOLOWER (c); | |
569 | *rx++ = TOUPPER (c); | |
570 | *rx++ = ']'; | |
571 | } | |
572 | else | |
573 | *rx++ = c; | |
574 | } | |
575 | ||
576 | /* Copy any remaining literals from the syntax string into the rx. */ | |
577 | for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn) | |
fc7bc883 | 578 | { |
73589c9d | 579 | if (CGEN_SYNTAX_CHAR_P (* syn)) |
fc7bc883 | 580 | { |
f3a55c17 NC |
581 | char c = CGEN_SYNTAX_CHAR (* syn); |
582 | ||
73589c9d | 583 | switch (c) |
f3a55c17 NC |
584 | { |
585 | /* Escape any regex metacharacters in the syntax. */ | |
73589c9d CS |
586 | case '.': case '[': case '\\': |
587 | case '*': case '^': case '$': | |
fc7bc883 RH |
588 | |
589 | #ifdef CGEN_ESCAPE_EXTENDED_REGEX | |
73589c9d | 590 | case '?': case '{': case '}': |
f3a55c17 NC |
591 | case '(': case ')': case '*': |
592 | case '|': case '+': case ']': | |
fc7bc883 | 593 | #endif |
f3a55c17 NC |
594 | *rx++ = '\\'; |
595 | *rx++ = c; | |
596 | break; | |
597 | ||
598 | default: | |
599 | if (ISALPHA (c)) | |
600 | { | |
601 | *rx++ = '['; | |
602 | *rx++ = TOLOWER (c); | |
603 | *rx++ = TOUPPER (c); | |
604 | *rx++ = ']'; | |
605 | } | |
606 | else | |
607 | *rx++ = c; | |
608 | break; | |
609 | } | |
fc7bc883 RH |
610 | } |
611 | else | |
612 | { | |
f3a55c17 NC |
613 | /* Replace non-syntax fields with globs. */ |
614 | *rx++ = '.'; | |
615 | *rx++ = '*'; | |
fc7bc883 RH |
616 | } |
617 | } | |
618 | ||
f3a55c17 | 619 | /* Trailing whitespace ok. */ |
73589c9d CS |
620 | * rx++ = '['; |
621 | * rx++ = ' '; | |
622 | * rx++ = '\t'; | |
623 | * rx++ = ']'; | |
624 | * rx++ = '*'; | |
fc7bc883 | 625 | |
f3a55c17 | 626 | /* But anchor it after that. */ |
73589c9d | 627 | * rx++ = '$'; |
fc7bc883 RH |
628 | * rx = '\0'; |
629 | ||
630 | CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t)); | |
f3a55c17 | 631 | reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB); |
fc7bc883 | 632 | |
73589c9d | 633 | if (reg_err == 0) |
fc7bc883 RH |
634 | return NULL; |
635 | else | |
636 | { | |
637 | static char msg[80]; | |
f3a55c17 | 638 | |
fc7bc883 RH |
639 | regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80); |
640 | regfree ((regex_t *) CGEN_INSN_RX (insn)); | |
641 | free (CGEN_INSN_RX (insn)); | |
642 | (CGEN_INSN_RX (insn)) = NULL; | |
37111cc7 | 643 | return msg; |
fc7bc883 RH |
644 | } |
645 | } | |
646 | ||
87e6d782 NC |
647 | \f |
648 | /* Default insn parser. | |
649 | ||
650 | The syntax string is scanned and operands are parsed and stored in FIELDS. | |
651 | Relocs are queued as we go via other callbacks. | |
652 | ||
653 | ??? Note that this is currently an all-or-nothing parser. If we fail to | |
654 | parse the instruction, we return 0 and the caller will start over from | |
655 | the beginning. Backtracking will be necessary in parsing subexpressions, | |
656 | but that can be handled there. Not handling backtracking here may get | |
657 | expensive in the case of the m68k. Deal with later. | |
658 | ||
f3a55c17 | 659 | Returns NULL for success, an error message for failure. */ |
87e6d782 NC |
660 | |
661 | static const char * | |
ffead7ae MM |
662 | parse_insn_normal (CGEN_CPU_DESC cd, |
663 | const CGEN_INSN *insn, | |
664 | const char **strp, | |
665 | CGEN_FIELDS *fields) | |
87e6d782 NC |
666 | { |
667 | /* ??? Runtime added insns not handled yet. */ | |
668 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
669 | const char *str = *strp; | |
670 | const char *errmsg; | |
671 | const char *p; | |
672 | const CGEN_SYNTAX_CHAR_TYPE * syn; | |
673 | #ifdef CGEN_MNEMONIC_OPERANDS | |
674 | /* FIXME: wip */ | |
675 | int past_opcode_p; | |
676 | #endif | |
677 | ||
678 | /* For now we assume the mnemonic is first (there are no leading operands). | |
679 | We can parse it without needing to set up operand parsing. | |
680 | GAS's input scrubber will ensure mnemonics are lowercase, but we may | |
681 | not be called from GAS. */ | |
682 | p = CGEN_INSN_MNEMONIC (insn); | |
37111cc7 | 683 | while (*p && TOLOWER (*p) == TOLOWER (*str)) |
87e6d782 NC |
684 | ++p, ++str; |
685 | ||
686 | if (* p) | |
687 | return _("unrecognized instruction"); | |
688 | ||
689 | #ifndef CGEN_MNEMONIC_OPERANDS | |
37111cc7 | 690 | if (* str && ! ISSPACE (* str)) |
87e6d782 NC |
691 | return _("unrecognized instruction"); |
692 | #endif | |
693 | ||
694 | CGEN_INIT_PARSE (cd); | |
695 | cgen_init_parse_operand (cd); | |
696 | #ifdef CGEN_MNEMONIC_OPERANDS | |
697 | past_opcode_p = 0; | |
698 | #endif | |
699 | ||
700 | /* We don't check for (*str != '\0') here because we want to parse | |
701 | any trailing fake arguments in the syntax string. */ | |
702 | syn = CGEN_SYNTAX_STRING (syntax); | |
703 | ||
704 | /* Mnemonics come first for now, ensure valid string. */ | |
705 | if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) | |
706 | abort (); | |
707 | ||
708 | ++syn; | |
709 | ||
710 | while (* syn != 0) | |
711 | { | |
712 | /* Non operand chars must match exactly. */ | |
713 | if (CGEN_SYNTAX_CHAR_P (* syn)) | |
714 | { | |
715 | /* FIXME: While we allow for non-GAS callers above, we assume the | |
716 | first char after the mnemonic part is a space. */ | |
717 | /* FIXME: We also take inappropriate advantage of the fact that | |
718 | GAS's input scrubber will remove extraneous blanks. */ | |
37111cc7 | 719 | if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn))) |
87e6d782 NC |
720 | { |
721 | #ifdef CGEN_MNEMONIC_OPERANDS | |
722 | if (CGEN_SYNTAX_CHAR(* syn) == ' ') | |
723 | past_opcode_p = 1; | |
724 | #endif | |
725 | ++ syn; | |
726 | ++ str; | |
727 | } | |
728 | else if (*str) | |
729 | { | |
730 | /* Syntax char didn't match. Can't be this insn. */ | |
731 | static char msg [80]; | |
f3a55c17 | 732 | |
87e6d782 NC |
733 | /* xgettext:c-format */ |
734 | sprintf (msg, _("syntax error (expected char `%c', found `%c')"), | |
735 | CGEN_SYNTAX_CHAR(*syn), *str); | |
736 | return msg; | |
737 | } | |
738 | else | |
739 | { | |
740 | /* Ran out of input. */ | |
741 | static char msg [80]; | |
f3a55c17 | 742 | |
87e6d782 NC |
743 | /* xgettext:c-format */ |
744 | sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), | |
745 | CGEN_SYNTAX_CHAR(*syn)); | |
746 | return msg; | |
747 | } | |
748 | continue; | |
749 | } | |
750 | ||
c7e2358a AM |
751 | #ifdef CGEN_MNEMONIC_OPERANDS |
752 | (void) past_opcode_p; | |
753 | #endif | |
87e6d782 | 754 | /* We have an operand of some sort. */ |
c7e2358a | 755 | errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields); |
87e6d782 NC |
756 | if (errmsg) |
757 | return errmsg; | |
758 | ||
759 | /* Done with this operand, continue with next one. */ | |
760 | ++ syn; | |
761 | } | |
762 | ||
763 | /* If we're at the end of the syntax string, we're done. */ | |
764 | if (* syn == 0) | |
765 | { | |
766 | /* FIXME: For the moment we assume a valid `str' can only contain | |
767 | blanks now. IE: We needn't try again with a longer version of | |
768 | the insn and it is assumed that longer versions of insns appear | |
769 | before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ | |
37111cc7 | 770 | while (ISSPACE (* str)) |
87e6d782 NC |
771 | ++ str; |
772 | ||
773 | if (* str != '\0') | |
774 | return _("junk at end of line"); /* FIXME: would like to include `str' */ | |
775 | ||
776 | return NULL; | |
777 | } | |
778 | ||
779 | /* We couldn't parse it. */ | |
780 | return _("unrecognized instruction"); | |
781 | } | |
782 | \f | |
783 | /* Main entry point. | |
784 | This routine is called for each instruction to be assembled. | |
785 | STR points to the insn to be assembled. | |
786 | We assume all necessary tables have been initialized. | |
787 | The assembled instruction, less any fixups, is stored in BUF. | |
788 | Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value | |
789 | still needs to be converted to target byte order, otherwise BUF is an array | |
790 | of bytes in target byte order. | |
791 | The result is a pointer to the insn's entry in the opcode table, | |
792 | or NULL if an error occured (an error message will have already been | |
793 | printed). | |
794 | ||
795 | Note that when processing (non-alias) macro-insns, | |
796 | this function recurses. | |
797 | ||
798 | ??? It's possible to make this cpu-independent. | |
799 | One would have to deal with a few minor things. | |
800 | At this point in time doing so would be more of a curiosity than useful | |
801 | [for example this file isn't _that_ big], but keeping the possibility in | |
802 | mind helps keep the design clean. */ | |
803 | ||
804 | const CGEN_INSN * | |
73589c9d | 805 | or1k_cgen_assemble_insn (CGEN_CPU_DESC cd, |
ffead7ae MM |
806 | const char *str, |
807 | CGEN_FIELDS *fields, | |
808 | CGEN_INSN_BYTES_PTR buf, | |
809 | char **errmsg) | |
87e6d782 NC |
810 | { |
811 | const char *start; | |
812 | CGEN_INSN_LIST *ilist; | |
813 | const char *parse_errmsg = NULL; | |
814 | const char *insert_errmsg = NULL; | |
fc7bc883 | 815 | int recognized_mnemonic = 0; |
87e6d782 NC |
816 | |
817 | /* Skip leading white space. */ | |
37111cc7 | 818 | while (ISSPACE (* str)) |
87e6d782 NC |
819 | ++ str; |
820 | ||
821 | /* The instructions are stored in hashed lists. | |
822 | Get the first in the list. */ | |
823 | ilist = CGEN_ASM_LOOKUP_INSN (cd, str); | |
824 | ||
825 | /* Keep looking until we find a match. */ | |
87e6d782 NC |
826 | start = str; |
827 | for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) | |
828 | { | |
829 | const CGEN_INSN *insn = ilist->insn; | |
fc7bc883 | 830 | recognized_mnemonic = 1; |
87e6d782 | 831 | |
73589c9d | 832 | #ifdef CGEN_VALIDATE_INSN_SUPPORTED |
f3a55c17 NC |
833 | /* Not usually needed as unsupported opcodes |
834 | shouldn't be in the hash lists. */ | |
87e6d782 | 835 | /* Is this insn supported by the selected cpu? */ |
73589c9d | 836 | if (! or1k_cgen_insn_supported (cd, insn)) |
87e6d782 NC |
837 | continue; |
838 | #endif | |
b11dcf4e | 839 | /* If the RELAXED attribute is set, this is an insn that shouldn't be |
87e6d782 NC |
840 | chosen immediately. Instead, it is used during assembler/linker |
841 | relaxation if possible. */ | |
b11dcf4e | 842 | if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0) |
87e6d782 NC |
843 | continue; |
844 | ||
845 | str = start; | |
846 | ||
f3a55c17 | 847 | /* Skip this insn if str doesn't look right lexically. */ |
fc7bc883 RH |
848 | if (CGEN_INSN_RX (insn) != NULL && |
849 | regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH) | |
850 | continue; | |
851 | ||
87e6d782 NC |
852 | /* Allow parse/insert handlers to obtain length of insn. */ |
853 | CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); | |
854 | ||
855 | parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); | |
856 | if (parse_errmsg != NULL) | |
857 | continue; | |
858 | ||
f3a55c17 | 859 | /* ??? 0 is passed for `pc'. */ |
87e6d782 NC |
860 | insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, |
861 | (bfd_vma) 0); | |
862 | if (insert_errmsg != NULL) | |
863 | continue; | |
864 | ||
865 | /* It is up to the caller to actually output the insn and any | |
866 | queued relocs. */ | |
867 | return insn; | |
868 | } | |
869 | ||
870 | { | |
871 | static char errbuf[150]; | |
87e6d782 | 872 | const char *tmp_errmsg; |
c7e2358a AM |
873 | #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS |
874 | #define be_verbose 1 | |
87e6d782 | 875 | #else |
c7e2358a | 876 | #define be_verbose 0 |
87e6d782 | 877 | #endif |
c7e2358a AM |
878 | |
879 | if (be_verbose) | |
880 | { | |
881 | /* If requesting verbose error messages, use insert_errmsg. | |
882 | Failing that, use parse_errmsg. */ | |
883 | tmp_errmsg = (insert_errmsg ? insert_errmsg : | |
884 | parse_errmsg ? parse_errmsg : | |
885 | recognized_mnemonic ? | |
886 | _("unrecognized form of instruction") : | |
887 | _("unrecognized instruction")); | |
888 | ||
889 | if (strlen (start) > 50) | |
890 | /* xgettext:c-format */ | |
891 | sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); | |
73589c9d | 892 | else |
c7e2358a AM |
893 | /* xgettext:c-format */ |
894 | sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); | |
895 | } | |
896 | else | |
897 | { | |
898 | if (strlen (start) > 50) | |
899 | /* xgettext:c-format */ | |
900 | sprintf (errbuf, _("bad instruction `%.50s...'"), start); | |
73589c9d | 901 | else |
c7e2358a AM |
902 | /* xgettext:c-format */ |
903 | sprintf (errbuf, _("bad instruction `%.50s'"), start); | |
904 | } | |
73589c9d | 905 | |
87e6d782 NC |
906 | *errmsg = errbuf; |
907 | return NULL; | |
908 | } | |
909 | } |