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252b5132 RH |
1 | /* Assembler interface for targets using CGEN. -*- C -*- |
2 | CGEN: Cpu tools GENerator | |
3 | ||
4 | THIS FILE IS MACHINE GENERATED WITH CGEN. | |
5 | - the resultant file is machine generated, cgen-asm.in isn't | |
6 | ||
060d22b0 | 7 | Copyright 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
252b5132 RH |
8 | |
9 | This file is part of the GNU Binutils and GDB, the GNU debugger. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2, or (at your option) | |
14 | any later version. | |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
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 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
24 | ||
25 | /* ??? Eventually more and more of this stuff can go to cpu-independent files. | |
26 | Keep that in mind. */ | |
27 | ||
28 | #include "sysdep.h" | |
29 | #include <ctype.h> | |
30 | #include <stdio.h> | |
31 | #include "ansidecl.h" | |
32 | #include "bfd.h" | |
33 | #include "symcat.h" | |
34 | #include "fr30-desc.h" | |
35 | #include "fr30-opc.h" | |
36 | #include "opintl.h" | |
37 | ||
38 | #undef min | |
39 | #define min(a,b) ((a) < (b) ? (a) : (b)) | |
40 | #undef max | |
41 | #define max(a,b) ((a) > (b) ? (a) : (b)) | |
42 | ||
43 | static const char * parse_insn_normal | |
44 | PARAMS ((CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *)); | |
45 | \f | |
46 | /* -- assembler routines inserted here */ | |
47 | ||
48 | /* -- asm.c */ | |
49 | /* Handle register lists for LDMx and STMx */ | |
50 | ||
51 | static int | |
52 | parse_register_number (strp) | |
53 | const char **strp; | |
54 | { | |
55 | int regno; | |
56 | if (**strp < '0' || **strp > '9') | |
57 | return -1; /* error */ | |
58 | regno = **strp - '0'; | |
59 | ++*strp; | |
60 | ||
61 | if (**strp >= '0' && **strp <= '9') | |
62 | { | |
63 | regno = regno * 10 + (**strp - '0'); | |
64 | ++*strp; | |
65 | } | |
66 | ||
67 | return regno; | |
68 | } | |
69 | ||
70 | static const char * | |
71 | parse_register_list (cd, strp, opindex, valuep, high_low, load_store) | |
72 | CGEN_CPU_DESC cd; | |
73 | const char **strp; | |
74 | int opindex; | |
75 | unsigned long *valuep; | |
76 | int high_low; /* 0 == high, 1 == low */ | |
77 | int load_store; /* 0 == load, 1 == store */ | |
78 | { | |
79 | int regno; | |
80 | *valuep = 0; | |
81 | while (**strp && **strp != ')') | |
82 | { | |
83 | if (**strp != 'R' && **strp != 'r') | |
84 | break; | |
85 | ++*strp; | |
86 | ||
87 | regno = parse_register_number (strp); | |
88 | if (regno == -1) | |
89 | return "Register number is not valid"; | |
90 | if (regno > 7 && !high_low) | |
91 | return "Register must be between r0 and r7"; | |
92 | if (regno < 8 && high_low) | |
93 | return "Register must be between r8 and r15"; | |
94 | ||
95 | if (high_low) | |
96 | regno -= 8; | |
97 | ||
98 | if (load_store) /* mask is reversed for store */ | |
99 | *valuep |= 0x80 >> regno; | |
100 | else | |
101 | *valuep |= 1 << regno; | |
102 | ||
103 | if (**strp == ',') | |
104 | { | |
105 | if (*(*strp + 1) == ')') | |
106 | break; | |
107 | ++*strp; | |
108 | } | |
109 | } | |
110 | ||
111 | if (!*strp || **strp != ')') | |
112 | return "Register list is not valid"; | |
113 | ||
114 | return NULL; | |
115 | } | |
116 | ||
117 | static const char * | |
118 | parse_low_register_list_ld (cd, strp, opindex, valuep) | |
119 | CGEN_CPU_DESC cd; | |
120 | const char **strp; | |
121 | int opindex; | |
122 | unsigned long *valuep; | |
123 | { | |
124 | return parse_register_list (cd, strp, opindex, valuep, 0/*low*/, 0/*load*/); | |
125 | } | |
126 | ||
127 | static const char * | |
128 | parse_hi_register_list_ld (cd, strp, opindex, valuep) | |
129 | CGEN_CPU_DESC cd; | |
130 | const char **strp; | |
131 | int opindex; | |
132 | unsigned long *valuep; | |
133 | { | |
134 | return parse_register_list (cd, strp, opindex, valuep, 1/*high*/, 0/*load*/); | |
135 | } | |
136 | ||
137 | static const char * | |
138 | parse_low_register_list_st (cd, strp, opindex, valuep) | |
139 | CGEN_CPU_DESC cd; | |
140 | const char **strp; | |
141 | int opindex; | |
142 | unsigned long *valuep; | |
143 | { | |
144 | return parse_register_list (cd, strp, opindex, valuep, 0/*low*/, 1/*store*/); | |
145 | } | |
146 | ||
147 | static const char * | |
148 | parse_hi_register_list_st (cd, strp, opindex, valuep) | |
149 | CGEN_CPU_DESC cd; | |
150 | const char **strp; | |
151 | int opindex; | |
152 | unsigned long *valuep; | |
153 | { | |
154 | return parse_register_list (cd, strp, opindex, valuep, 1/*high*/, 1/*store*/); | |
155 | } | |
156 | ||
157 | /* -- */ | |
158 | ||
159 | /* Main entry point for operand parsing. | |
160 | ||
161 | This function is basically just a big switch statement. Earlier versions | |
162 | used tables to look up the function to use, but | |
163 | - if the table contains both assembler and disassembler functions then | |
164 | the disassembler contains much of the assembler and vice-versa, | |
165 | - there's a lot of inlining possibilities as things grow, | |
166 | - using a switch statement avoids the function call overhead. | |
167 | ||
168 | This function could be moved into `parse_insn_normal', but keeping it | |
169 | separate makes clear the interface between `parse_insn_normal' and each of | |
170 | the handlers. | |
171 | */ | |
172 | ||
173 | const char * | |
174 | fr30_cgen_parse_operand (cd, opindex, strp, fields) | |
175 | CGEN_CPU_DESC cd; | |
176 | int opindex; | |
177 | const char ** strp; | |
178 | CGEN_FIELDS * fields; | |
179 | { | |
eb1b03df DE |
180 | const char * errmsg = NULL; |
181 | /* Used by scalar operands that still need to be parsed. */ | |
182 | long junk; | |
252b5132 RH |
183 | |
184 | switch (opindex) | |
185 | { | |
186 | case FR30_OPERAND_CRI : | |
187 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_cr_names, & fields->f_CRi); | |
188 | break; | |
189 | case FR30_OPERAND_CRJ : | |
190 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_cr_names, & fields->f_CRj); | |
191 | break; | |
192 | case FR30_OPERAND_R13 : | |
eb1b03df | 193 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_h_r13, & junk); |
252b5132 RH |
194 | break; |
195 | case FR30_OPERAND_R14 : | |
eb1b03df | 196 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_h_r14, & junk); |
252b5132 RH |
197 | break; |
198 | case FR30_OPERAND_R15 : | |
eb1b03df | 199 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_h_r15, & junk); |
252b5132 RH |
200 | break; |
201 | case FR30_OPERAND_RI : | |
202 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_gr_names, & fields->f_Ri); | |
203 | break; | |
204 | case FR30_OPERAND_RIC : | |
205 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_gr_names, & fields->f_Ric); | |
206 | break; | |
207 | case FR30_OPERAND_RJ : | |
208 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_gr_names, & fields->f_Rj); | |
209 | break; | |
210 | case FR30_OPERAND_RJC : | |
211 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_gr_names, & fields->f_Rjc); | |
212 | break; | |
213 | case FR30_OPERAND_RS1 : | |
214 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_dr_names, & fields->f_Rs1); | |
215 | break; | |
216 | case FR30_OPERAND_RS2 : | |
217 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_dr_names, & fields->f_Rs2); | |
218 | break; | |
219 | case FR30_OPERAND_CC : | |
220 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_CC, &fields->f_cc); | |
221 | break; | |
222 | case FR30_OPERAND_CCC : | |
223 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_CCC, &fields->f_ccc); | |
224 | break; | |
225 | case FR30_OPERAND_DIR10 : | |
226 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_DIR10, &fields->f_dir10); | |
227 | break; | |
228 | case FR30_OPERAND_DIR8 : | |
229 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_DIR8, &fields->f_dir8); | |
230 | break; | |
231 | case FR30_OPERAND_DIR9 : | |
232 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_DIR9, &fields->f_dir9); | |
233 | break; | |
234 | case FR30_OPERAND_DISP10 : | |
235 | errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_DISP10, &fields->f_disp10); | |
236 | break; | |
237 | case FR30_OPERAND_DISP8 : | |
238 | errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_DISP8, &fields->f_disp8); | |
239 | break; | |
240 | case FR30_OPERAND_DISP9 : | |
241 | errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_DISP9, &fields->f_disp9); | |
242 | break; | |
243 | case FR30_OPERAND_I20 : | |
244 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_I20, &fields->f_i20); | |
245 | break; | |
246 | case FR30_OPERAND_I32 : | |
247 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_I32, &fields->f_i32); | |
248 | break; | |
249 | case FR30_OPERAND_I8 : | |
250 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_I8, &fields->f_i8); | |
251 | break; | |
252 | case FR30_OPERAND_LABEL12 : | |
253 | { | |
254 | bfd_vma value; | |
255 | errmsg = cgen_parse_address (cd, strp, FR30_OPERAND_LABEL12, 0, NULL, & value); | |
256 | fields->f_rel12 = value; | |
257 | } | |
258 | break; | |
259 | case FR30_OPERAND_LABEL9 : | |
260 | { | |
261 | bfd_vma value; | |
262 | errmsg = cgen_parse_address (cd, strp, FR30_OPERAND_LABEL9, 0, NULL, & value); | |
263 | fields->f_rel9 = value; | |
264 | } | |
265 | break; | |
266 | case FR30_OPERAND_M4 : | |
267 | errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_M4, &fields->f_m4); | |
268 | break; | |
269 | case FR30_OPERAND_PS : | |
eb1b03df | 270 | errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_h_ps, & junk); |
252b5132 RH |
271 | break; |
272 | case FR30_OPERAND_REGLIST_HI_LD : | |
273 | errmsg = parse_hi_register_list_ld (cd, strp, FR30_OPERAND_REGLIST_HI_LD, &fields->f_reglist_hi_ld); | |
274 | break; | |
275 | case FR30_OPERAND_REGLIST_HI_ST : | |
276 | errmsg = parse_hi_register_list_st (cd, strp, FR30_OPERAND_REGLIST_HI_ST, &fields->f_reglist_hi_st); | |
277 | break; | |
278 | case FR30_OPERAND_REGLIST_LOW_LD : | |
279 | errmsg = parse_low_register_list_ld (cd, strp, FR30_OPERAND_REGLIST_LOW_LD, &fields->f_reglist_low_ld); | |
280 | break; | |
281 | case FR30_OPERAND_REGLIST_LOW_ST : | |
282 | errmsg = parse_low_register_list_st (cd, strp, FR30_OPERAND_REGLIST_LOW_ST, &fields->f_reglist_low_st); | |
283 | break; | |
284 | case FR30_OPERAND_S10 : | |
285 | errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_S10, &fields->f_s10); | |
286 | break; | |
287 | case FR30_OPERAND_U10 : | |
288 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_U10, &fields->f_u10); | |
289 | break; | |
290 | case FR30_OPERAND_U4 : | |
291 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_U4, &fields->f_u4); | |
292 | break; | |
293 | case FR30_OPERAND_U4C : | |
294 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_U4C, &fields->f_u4c); | |
295 | break; | |
296 | case FR30_OPERAND_U8 : | |
297 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_U8, &fields->f_u8); | |
298 | break; | |
299 | case FR30_OPERAND_UDISP6 : | |
300 | errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_UDISP6, &fields->f_udisp6); | |
301 | break; | |
302 | ||
303 | default : | |
304 | /* xgettext:c-format */ | |
305 | fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex); | |
306 | abort (); | |
307 | } | |
308 | ||
309 | return errmsg; | |
310 | } | |
311 | ||
312 | cgen_parse_fn * const fr30_cgen_parse_handlers[] = | |
313 | { | |
314 | parse_insn_normal, | |
315 | }; | |
316 | ||
317 | void | |
318 | fr30_cgen_init_asm (cd) | |
319 | CGEN_CPU_DESC cd; | |
320 | { | |
321 | fr30_cgen_init_opcode_table (cd); | |
322 | fr30_cgen_init_ibld_table (cd); | |
323 | cd->parse_handlers = & fr30_cgen_parse_handlers[0]; | |
324 | cd->parse_operand = fr30_cgen_parse_operand; | |
325 | } | |
326 | ||
327 | \f | |
328 | /* Default insn parser. | |
329 | ||
330 | The syntax string is scanned and operands are parsed and stored in FIELDS. | |
331 | Relocs are queued as we go via other callbacks. | |
332 | ||
333 | ??? Note that this is currently an all-or-nothing parser. If we fail to | |
334 | parse the instruction, we return 0 and the caller will start over from | |
335 | the beginning. Backtracking will be necessary in parsing subexpressions, | |
336 | but that can be handled there. Not handling backtracking here may get | |
337 | expensive in the case of the m68k. Deal with later. | |
338 | ||
339 | Returns NULL for success, an error message for failure. | |
340 | */ | |
341 | ||
342 | static const char * | |
343 | parse_insn_normal (cd, insn, strp, fields) | |
344 | CGEN_CPU_DESC cd; | |
345 | const CGEN_INSN *insn; | |
346 | const char **strp; | |
347 | CGEN_FIELDS *fields; | |
348 | { | |
349 | /* ??? Runtime added insns not handled yet. */ | |
350 | const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); | |
351 | const char *str = *strp; | |
352 | const char *errmsg; | |
353 | const char *p; | |
b3466c39 | 354 | const CGEN_SYNTAX_CHAR_TYPE * syn; |
252b5132 RH |
355 | #ifdef CGEN_MNEMONIC_OPERANDS |
356 | /* FIXME: wip */ | |
357 | int past_opcode_p; | |
358 | #endif | |
359 | ||
360 | /* For now we assume the mnemonic is first (there are no leading operands). | |
361 | We can parse it without needing to set up operand parsing. | |
362 | GAS's input scrubber will ensure mnemonics are lowercase, but we may | |
363 | not be called from GAS. */ | |
364 | p = CGEN_INSN_MNEMONIC (insn); | |
365 | while (*p && tolower (*p) == tolower (*str)) | |
366 | ++p, ++str; | |
1fa60b5d DE |
367 | |
368 | if (* p) | |
369 | return _("unrecognized instruction"); | |
370 | ||
371 | #ifndef CGEN_MNEMONIC_OPERANDS | |
372 | if (* str && !isspace (* str)) | |
252b5132 | 373 | return _("unrecognized instruction"); |
1fa60b5d | 374 | #endif |
252b5132 RH |
375 | |
376 | CGEN_INIT_PARSE (cd); | |
377 | cgen_init_parse_operand (cd); | |
378 | #ifdef CGEN_MNEMONIC_OPERANDS | |
379 | past_opcode_p = 0; | |
380 | #endif | |
381 | ||
382 | /* We don't check for (*str != '\0') here because we want to parse | |
383 | any trailing fake arguments in the syntax string. */ | |
384 | syn = CGEN_SYNTAX_STRING (syntax); | |
385 | ||
386 | /* Mnemonics come first for now, ensure valid string. */ | |
387 | if (! CGEN_SYNTAX_MNEMONIC_P (* syn)) | |
388 | abort (); | |
389 | ||
390 | ++syn; | |
391 | ||
392 | while (* syn != 0) | |
393 | { | |
394 | /* Non operand chars must match exactly. */ | |
395 | if (CGEN_SYNTAX_CHAR_P (* syn)) | |
396 | { | |
1fa60b5d DE |
397 | /* FIXME: While we allow for non-GAS callers above, we assume the |
398 | first char after the mnemonic part is a space. */ | |
399 | /* FIXME: We also take inappropriate advantage of the fact that | |
400 | GAS's input scrubber will remove extraneous blanks. */ | |
6bb95a0f | 401 | if (tolower (*str) == tolower (CGEN_SYNTAX_CHAR (* syn))) |
252b5132 RH |
402 | { |
403 | #ifdef CGEN_MNEMONIC_OPERANDS | |
b3466c39 | 404 | if (CGEN_SYNTAX_CHAR(* syn) == ' ') |
252b5132 RH |
405 | past_opcode_p = 1; |
406 | #endif | |
407 | ++ syn; | |
408 | ++ str; | |
409 | } | |
b3466c39 | 410 | else if (*str) |
252b5132 RH |
411 | { |
412 | /* Syntax char didn't match. Can't be this insn. */ | |
6bb95a0f DB |
413 | static char msg [80]; |
414 | /* xgettext:c-format */ | |
415 | sprintf (msg, _("syntax error (expected char `%c', found `%c')"), | |
b3466c39 DB |
416 | CGEN_SYNTAX_CHAR(*syn), *str); |
417 | return msg; | |
418 | } | |
419 | else | |
420 | { | |
421 | /* Ran out of input. */ | |
422 | static char msg [80]; | |
423 | /* xgettext:c-format */ | |
424 | sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"), | |
425 | CGEN_SYNTAX_CHAR(*syn)); | |
6bb95a0f | 426 | return msg; |
252b5132 RH |
427 | } |
428 | continue; | |
429 | } | |
430 | ||
431 | /* We have an operand of some sort. */ | |
432 | errmsg = fr30_cgen_parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), | |
433 | &str, fields); | |
434 | if (errmsg) | |
435 | return errmsg; | |
436 | ||
437 | /* Done with this operand, continue with next one. */ | |
438 | ++ syn; | |
439 | } | |
440 | ||
441 | /* If we're at the end of the syntax string, we're done. */ | |
b3466c39 | 442 | if (* syn == 0) |
252b5132 RH |
443 | { |
444 | /* FIXME: For the moment we assume a valid `str' can only contain | |
445 | blanks now. IE: We needn't try again with a longer version of | |
446 | the insn and it is assumed that longer versions of insns appear | |
447 | before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */ | |
448 | while (isspace (* str)) | |
449 | ++ str; | |
450 | ||
451 | if (* str != '\0') | |
452 | return _("junk at end of line"); /* FIXME: would like to include `str' */ | |
453 | ||
454 | return NULL; | |
455 | } | |
456 | ||
457 | /* We couldn't parse it. */ | |
458 | return _("unrecognized instruction"); | |
459 | } | |
460 | \f | |
461 | /* Main entry point. | |
462 | This routine is called for each instruction to be assembled. | |
463 | STR points to the insn to be assembled. | |
464 | We assume all necessary tables have been initialized. | |
465 | The assembled instruction, less any fixups, is stored in BUF. | |
466 | Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value | |
467 | still needs to be converted to target byte order, otherwise BUF is an array | |
468 | of bytes in target byte order. | |
469 | The result is a pointer to the insn's entry in the opcode table, | |
470 | or NULL if an error occured (an error message will have already been | |
471 | printed). | |
472 | ||
473 | Note that when processing (non-alias) macro-insns, | |
474 | this function recurses. | |
475 | ||
476 | ??? It's possible to make this cpu-independent. | |
477 | One would have to deal with a few minor things. | |
478 | At this point in time doing so would be more of a curiosity than useful | |
479 | [for example this file isn't _that_ big], but keeping the possibility in | |
480 | mind helps keep the design clean. */ | |
481 | ||
482 | const CGEN_INSN * | |
483 | fr30_cgen_assemble_insn (cd, str, fields, buf, errmsg) | |
484 | CGEN_CPU_DESC cd; | |
485 | const char *str; | |
486 | CGEN_FIELDS *fields; | |
487 | CGEN_INSN_BYTES_PTR buf; | |
488 | char **errmsg; | |
489 | { | |
490 | const char *start; | |
491 | CGEN_INSN_LIST *ilist; | |
b3466c39 DB |
492 | const char *parse_errmsg = NULL; |
493 | const char *insert_errmsg = NULL; | |
252b5132 RH |
494 | |
495 | /* Skip leading white space. */ | |
496 | while (isspace (* str)) | |
497 | ++ str; | |
498 | ||
499 | /* The instructions are stored in hashed lists. | |
500 | Get the first in the list. */ | |
501 | ilist = CGEN_ASM_LOOKUP_INSN (cd, str); | |
502 | ||
503 | /* Keep looking until we find a match. */ | |
504 | ||
505 | start = str; | |
506 | for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist)) | |
507 | { | |
508 | const CGEN_INSN *insn = ilist->insn; | |
509 | ||
6bb95a0f DB |
510 | #ifdef CGEN_VALIDATE_INSN_SUPPORTED |
511 | /* not usually needed as unsupported opcodes shouldn't be in the hash lists */ | |
252b5132 RH |
512 | /* Is this insn supported by the selected cpu? */ |
513 | if (! fr30_cgen_insn_supported (cd, insn)) | |
514 | continue; | |
515 | #endif | |
516 | ||
517 | /* If the RELAX attribute is set, this is an insn that shouldn't be | |
518 | chosen immediately. Instead, it is used during assembler/linker | |
519 | relaxation if possible. */ | |
520 | if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAX) != 0) | |
521 | continue; | |
522 | ||
523 | str = start; | |
524 | ||
525 | /* Allow parse/insert handlers to obtain length of insn. */ | |
526 | CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); | |
527 | ||
b3466c39 DB |
528 | parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields); |
529 | if (parse_errmsg != NULL) | |
6bb95a0f | 530 | continue; |
252b5132 | 531 | |
6bb95a0f | 532 | /* ??? 0 is passed for `pc' */ |
b3466c39 DB |
533 | insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf, |
534 | (bfd_vma) 0); | |
535 | if (insert_errmsg != NULL) | |
6bb95a0f DB |
536 | continue; |
537 | ||
538 | /* It is up to the caller to actually output the insn and any | |
539 | queued relocs. */ | |
540 | return insn; | |
252b5132 RH |
541 | } |
542 | ||
252b5132 | 543 | { |
6bb95a0f | 544 | static char errbuf[150]; |
b3466c39 | 545 | const char *tmp_errmsg; |
6bb95a0f DB |
546 | |
547 | #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS | |
b3466c39 DB |
548 | /* If requesting verbose error messages, use insert_errmsg. |
549 | Failing that, use parse_errmsg */ | |
550 | tmp_errmsg = (insert_errmsg ? insert_errmsg : | |
551 | parse_errmsg ? parse_errmsg : | |
552 | _("unrecognized instruction")); | |
553 | ||
6bb95a0f DB |
554 | if (strlen (start) > 50) |
555 | /* xgettext:c-format */ | |
556 | sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start); | |
557 | else | |
558 | /* xgettext:c-format */ | |
559 | sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start); | |
560 | #else | |
252b5132 RH |
561 | if (strlen (start) > 50) |
562 | /* xgettext:c-format */ | |
563 | sprintf (errbuf, _("bad instruction `%.50s...'"), start); | |
564 | else | |
565 | /* xgettext:c-format */ | |
566 | sprintf (errbuf, _("bad instruction `%.50s'"), start); | |
6bb95a0f | 567 | #endif |
252b5132 RH |
568 | |
569 | *errmsg = errbuf; | |
570 | return NULL; | |
571 | } | |
572 | } | |
573 | \f | |
574 | #if 0 /* This calls back to GAS which we can't do without care. */ | |
575 | ||
576 | /* Record each member of OPVALS in the assembler's symbol table. | |
577 | This lets GAS parse registers for us. | |
578 | ??? Interesting idea but not currently used. */ | |
579 | ||
580 | /* Record each member of OPVALS in the assembler's symbol table. | |
581 | FIXME: Not currently used. */ | |
582 | ||
583 | void | |
584 | fr30_cgen_asm_hash_keywords (cd, opvals) | |
585 | CGEN_CPU_DESC cd; | |
586 | CGEN_KEYWORD *opvals; | |
587 | { | |
588 | CGEN_KEYWORD_SEARCH search = cgen_keyword_search_init (opvals, NULL); | |
589 | const CGEN_KEYWORD_ENTRY * ke; | |
590 | ||
591 | while ((ke = cgen_keyword_search_next (& search)) != NULL) | |
592 | { | |
593 | #if 0 /* Unnecessary, should be done in the search routine. */ | |
594 | if (! fr30_cgen_opval_supported (ke)) | |
595 | continue; | |
596 | #endif | |
597 | cgen_asm_record_register (cd, ke->name, ke->value); | |
598 | } | |
599 | } | |
600 | ||
601 | #endif /* 0 */ |