OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [opcodes/] [frv-dis.c] - Blame information for rev 280

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 227 jeremybenn 
/* Disassembler 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-dis.in isn't
6 
 
7 
   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2007,
8 
   2008, 2010  Free Software Foundation, Inc.
9 
 
10 
   This file is part of libopcodes.
11 
 
12 
   This library is free software; you can redistribute it and/or modify
13 
   it under the terms of the GNU General Public License as published by
14 
   the Free Software Foundation; either version 3, or (at your option)
15 
   any later version.
16 
 
17 
   It is distributed in the hope that it will be useful, but WITHOUT
18 
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
19 
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
20 
   License for more details.
21 
 
22 
   You should have received a copy of the GNU General Public License
23 
   along with this program; if not, write to the Free Software Foundation, Inc.,
24 
   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
25 
 
26 
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
27 
   Keep that in mind.  */
28 
 
29 
#include "sysdep.h"
30 
#include <stdio.h>
31 
#include "ansidecl.h"
32 
#include "dis-asm.h"
33 
#include "bfd.h"
34 
#include "symcat.h"
35 
#include "libiberty.h"
36 
#include "frv-desc.h"
37 
#include "frv-opc.h"
38 
#include "opintl.h"
39 
 
40 
/* Default text to print if an instruction isn't recognized.  */
41 
#define UNKNOWN_INSN_MSG _("*unknown*")
42 
 
43 
static void print_normal
44 
  (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
45 
static void print_address
46 
  (CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
47 
static void print_keyword
48 
  (CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
49 
static void print_insn_normal
50 
  (CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
51 
static int print_insn
52 
  (CGEN_CPU_DESC, bfd_vma,  disassemble_info *, bfd_byte *, unsigned);
53 
static int default_print_insn
54 
  (CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
55 
static int read_insn
56 
  (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
57 
   unsigned long *);
58 
 
59 
/* -- disassembler routines inserted here.  */
60 
 
61 
/* -- dis.c */
62 
static void
63 
print_at (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
64 
          void * dis_info,
65 
          long reloc_ann ATTRIBUTE_UNUSED,
66 
          long value ATTRIBUTE_UNUSED,
67 
          bfd_vma pc ATTRIBUTE_UNUSED,
68 
          int length ATTRIBUTE_UNUSED)
69 
{
70 
  disassemble_info *info = (disassemble_info *) dis_info;
71 
 
72 
  (*info->fprintf_func) (info->stream, "@");
73 
}
74 
 
75 
static void
76 
print_spr (CGEN_CPU_DESC cd,
77 
           void * dis_info,
78 
           CGEN_KEYWORD *names,
79 
           long regno,
80 
           unsigned int attrs)
81 
{
82 
  /* Use the register index format for any unnamed registers.  */
83 
  if (cgen_keyword_lookup_value (names, regno) == NULL)
84 
    {
85 
      disassemble_info *info = (disassemble_info *) dis_info;
86 
      (*info->fprintf_func) (info->stream, "spr[%ld]", regno);
87 
    }
88 
  else
89 
    print_keyword (cd, dis_info, names, regno, attrs);
90 
}
91 
 
92 
static void
93 
print_hi (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
94 
          void * dis_info,
95 
          long value,
96 
          unsigned int attrs ATTRIBUTE_UNUSED,
97 
          bfd_vma pc ATTRIBUTE_UNUSED,
98 
          int length ATTRIBUTE_UNUSED)
99 
{
100 
  disassemble_info *info = (disassemble_info *) dis_info;
101 
 
102 
  (*info->fprintf_func) (info->stream, value ? "0x%lx" : "hi(0x%lx)", value);
103 
}
104 
 
105 
static void
106 
print_lo (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
107 
          void * dis_info,
108 
          long value,
109 
          unsigned int attrs ATTRIBUTE_UNUSED,
110 
          bfd_vma pc ATTRIBUTE_UNUSED,
111 
          int length ATTRIBUTE_UNUSED)
112 
{
113 
  disassemble_info *info = (disassemble_info *) dis_info;
114 
  if (value)
115 
    (*info->fprintf_func) (info->stream, "0x%lx", value);
116 
  else
117 
    (*info->fprintf_func) (info->stream, "lo(0x%lx)", value);
118 
}
119 
 
120 
/* -- */
121 
 
122 
void frv_cgen_print_operand
123 
  (CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int);
124 
 
125 
/* Main entry point for printing operands.
126 
   XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
127 
   of dis-asm.h on cgen.h.
128 
 
129 
   This function is basically just a big switch statement.  Earlier versions
130 
   used tables to look up the function to use, but
131 
   - if the table contains both assembler and disassembler functions then
132 
     the disassembler contains much of the assembler and vice-versa,
133 
   - there's a lot of inlining possibilities as things grow,
134 
   - using a switch statement avoids the function call overhead.
135 
 
136 
   This function could be moved into `print_insn_normal', but keeping it
137 
   separate makes clear the interface between `print_insn_normal' and each of
138 
   the handlers.  */
139 
 
140 
void
141 
frv_cgen_print_operand (CGEN_CPU_DESC cd,
142 
                           int opindex,
143 
                           void * xinfo,
144 
                           CGEN_FIELDS *fields,
145 
                           void const *attrs ATTRIBUTE_UNUSED,
146 
                           bfd_vma pc,
147 
                           int length)
148 
{
149 
  disassemble_info *info = (disassemble_info *) xinfo;
150 
 
151 
  switch (opindex)
152 
    {
153 
    case FRV_OPERAND_A0 :
154 
      print_normal (cd, info, fields->f_A, 0, pc, length);
155 
      break;
156 
    case FRV_OPERAND_A1 :
157 
      print_normal (cd, info, fields->f_A, 0, pc, length);
158 
      break;
159 
    case FRV_OPERAND_ACC40SI :
160 
      print_keyword (cd, info, & frv_cgen_opval_acc_names, fields->f_ACC40Si, 0);
161 
      break;
162 
    case FRV_OPERAND_ACC40SK :
163 
      print_keyword (cd, info, & frv_cgen_opval_acc_names, fields->f_ACC40Sk, 0);
164 
      break;
165 
    case FRV_OPERAND_ACC40UI :
166 
      print_keyword (cd, info, & frv_cgen_opval_acc_names, fields->f_ACC40Ui, 0);
167 
      break;
168 
    case FRV_OPERAND_ACC40UK :
169 
      print_keyword (cd, info, & frv_cgen_opval_acc_names, fields->f_ACC40Uk, 0);
170 
      break;
171 
    case FRV_OPERAND_ACCGI :
172 
      print_keyword (cd, info, & frv_cgen_opval_accg_names, fields->f_ACCGi, 0);
173 
      break;
174 
    case FRV_OPERAND_ACCGK :
175 
      print_keyword (cd, info, & frv_cgen_opval_accg_names, fields->f_ACCGk, 0);
176 
      break;
177 
    case FRV_OPERAND_CCI :
178 
      print_keyword (cd, info, & frv_cgen_opval_cccr_names, fields->f_CCi, 0);
179 
      break;
180 
    case FRV_OPERAND_CPRDOUBLEK :
181 
      print_keyword (cd, info, & frv_cgen_opval_cpr_names, fields->f_CPRk, 0);
182 
      break;
183 
    case FRV_OPERAND_CPRI :
184 
      print_keyword (cd, info, & frv_cgen_opval_cpr_names, fields->f_CPRi, 0);
185 
      break;
186 
    case FRV_OPERAND_CPRJ :
187 
      print_keyword (cd, info, & frv_cgen_opval_cpr_names, fields->f_CPRj, 0);
188 
      break;
189 
    case FRV_OPERAND_CPRK :
190 
      print_keyword (cd, info, & frv_cgen_opval_cpr_names, fields->f_CPRk, 0);
191 
      break;
192 
    case FRV_OPERAND_CRI :
193 
      print_keyword (cd, info, & frv_cgen_opval_cccr_names, fields->f_CRi, 0);
194 
      break;
195 
    case FRV_OPERAND_CRJ :
196 
      print_keyword (cd, info, & frv_cgen_opval_cccr_names, fields->f_CRj, 0);
197 
      break;
198 
    case FRV_OPERAND_CRJ_FLOAT :
199 
      print_keyword (cd, info, & frv_cgen_opval_cccr_names, fields->f_CRj_float, 0);
200 
      break;
201 
    case FRV_OPERAND_CRJ_INT :
202 
      print_keyword (cd, info, & frv_cgen_opval_cccr_names, fields->f_CRj_int, 0);
203 
      break;
204 
    case FRV_OPERAND_CRK :
205 
      print_keyword (cd, info, & frv_cgen_opval_cccr_names, fields->f_CRk, 0);
206 
      break;
207 
    case FRV_OPERAND_FCCI_1 :
208 
      print_keyword (cd, info, & frv_cgen_opval_fccr_names, fields->f_FCCi_1, 0);
209 
      break;
210 
    case FRV_OPERAND_FCCI_2 :
211 
      print_keyword (cd, info, & frv_cgen_opval_fccr_names, fields->f_FCCi_2, 0);
212 
      break;
213 
    case FRV_OPERAND_FCCI_3 :
214 
      print_keyword (cd, info, & frv_cgen_opval_fccr_names, fields->f_FCCi_3, 0);
215 
      break;
216 
    case FRV_OPERAND_FCCK :
217 
      print_keyword (cd, info, & frv_cgen_opval_fccr_names, fields->f_FCCk, 0);
218 
      break;
219 
    case FRV_OPERAND_FRDOUBLEI :
220 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRi, 0);
221 
      break;
222 
    case FRV_OPERAND_FRDOUBLEJ :
223 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRj, 0);
224 
      break;
225 
    case FRV_OPERAND_FRDOUBLEK :
226 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRk, 0);
227 
      break;
228 
    case FRV_OPERAND_FRI :
229 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRi, 0);
230 
      break;
231 
    case FRV_OPERAND_FRINTI :
232 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRi, 0);
233 
      break;
234 
    case FRV_OPERAND_FRINTIEVEN :
235 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRi, 0);
236 
      break;
237 
    case FRV_OPERAND_FRINTJ :
238 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRj, 0);
239 
      break;
240 
    case FRV_OPERAND_FRINTJEVEN :
241 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRj, 0);
242 
      break;
243 
    case FRV_OPERAND_FRINTK :
244 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRk, 0);
245 
      break;
246 
    case FRV_OPERAND_FRINTKEVEN :
247 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRk, 0);
248 
      break;
249 
    case FRV_OPERAND_FRJ :
250 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRj, 0);
251 
      break;
252 
    case FRV_OPERAND_FRK :
253 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRk, 0);
254 
      break;
255 
    case FRV_OPERAND_FRKHI :
256 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRk, 0);
257 
      break;
258 
    case FRV_OPERAND_FRKLO :
259 
      print_keyword (cd, info, & frv_cgen_opval_fr_names, fields->f_FRk, 0);
260 
      break;
261 
    case FRV_OPERAND_GRDOUBLEK :
262 
      print_keyword (cd, info, & frv_cgen_opval_gr_names, fields->f_GRk, 0);
263 
      break;
264 
    case FRV_OPERAND_GRI :
265 
      print_keyword (cd, info, & frv_cgen_opval_gr_names, fields->f_GRi, 0);
266 
      break;
267 
    case FRV_OPERAND_GRJ :
268 
      print_keyword (cd, info, & frv_cgen_opval_gr_names, fields->f_GRj, 0);
269 
      break;
270 
    case FRV_OPERAND_GRK :
271 
      print_keyword (cd, info, & frv_cgen_opval_gr_names, fields->f_GRk, 0);
272 
      break;
273 
    case FRV_OPERAND_GRKHI :
274 
      print_keyword (cd, info, & frv_cgen_opval_gr_names, fields->f_GRk, 0);
275 
      break;
276 
    case FRV_OPERAND_GRKLO :
277 
      print_keyword (cd, info, & frv_cgen_opval_gr_names, fields->f_GRk, 0);
278 
      break;
279 
    case FRV_OPERAND_ICCI_1 :
280 
      print_keyword (cd, info, & frv_cgen_opval_iccr_names, fields->f_ICCi_1, 0);
281 
      break;
282 
    case FRV_OPERAND_ICCI_2 :
283 
      print_keyword (cd, info, & frv_cgen_opval_iccr_names, fields->f_ICCi_2, 0);
284 
      break;
285 
    case FRV_OPERAND_ICCI_3 :
286 
      print_keyword (cd, info, & frv_cgen_opval_iccr_names, fields->f_ICCi_3, 0);
287 
      break;
288 
    case FRV_OPERAND_LI :
289 
      print_normal (cd, info, fields->f_LI, 0, pc, length);
290 
      break;
291 
    case FRV_OPERAND_LRAD :
292 
      print_normal (cd, info, fields->f_LRAD, 0, pc, length);
293 
      break;
294 
    case FRV_OPERAND_LRAE :
295 
      print_normal (cd, info, fields->f_LRAE, 0, pc, length);
296 
      break;
297 
    case FRV_OPERAND_LRAS :
298 
      print_normal (cd, info, fields->f_LRAS, 0, pc, length);
299 
      break;
300 
    case FRV_OPERAND_TLBPRL :
301 
      print_normal (cd, info, fields->f_TLBPRL, 0, pc, length);
302 
      break;
303 
    case FRV_OPERAND_TLBPROPX :
304 
      print_normal (cd, info, fields->f_TLBPRopx, 0, pc, length);
305 
      break;
306 
    case FRV_OPERAND_AE :
307 
      print_normal (cd, info, fields->f_ae, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
308 
      break;
309 
    case FRV_OPERAND_CALLANN :
310 
      print_at (cd, info, fields->f_reloc_ann, 0, pc, length);
311 
      break;
312 
    case FRV_OPERAND_CCOND :
313 
      print_normal (cd, info, fields->f_ccond, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
314 
      break;
315 
    case FRV_OPERAND_COND :
316 
      print_normal (cd, info, fields->f_cond, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
317 
      break;
318 
    case FRV_OPERAND_D12 :
319 
      print_normal (cd, info, fields->f_d12, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
320 
      break;
321 
    case FRV_OPERAND_DEBUG :
322 
      print_normal (cd, info, fields->f_debug, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
323 
      break;
324 
    case FRV_OPERAND_EIR :
325 
      print_normal (cd, info, fields->f_eir, 0, pc, length);
326 
      break;
327 
    case FRV_OPERAND_HINT :
328 
      print_normal (cd, info, fields->f_hint, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
329 
      break;
330 
    case FRV_OPERAND_HINT_NOT_TAKEN :
331 
      print_keyword (cd, info, & frv_cgen_opval_h_hint_not_taken, fields->f_hint, 0);
332 
      break;
333 
    case FRV_OPERAND_HINT_TAKEN :
334 
      print_keyword (cd, info, & frv_cgen_opval_h_hint_taken, fields->f_hint, 0);
335 
      break;
336 
    case FRV_OPERAND_LABEL16 :
337 
      print_address (cd, info, fields->f_label16, 0|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
338 
      break;
339 
    case FRV_OPERAND_LABEL24 :
340 
      print_address (cd, info, fields->f_label24, 0|(1<<CGEN_OPERAND_PCREL_ADDR)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
341 
      break;
342 
    case FRV_OPERAND_LDANN :
343 
      print_at (cd, info, fields->f_reloc_ann, 0, pc, length);
344 
      break;
345 
    case FRV_OPERAND_LDDANN :
346 
      print_at (cd, info, fields->f_reloc_ann, 0, pc, length);
347 
      break;
348 
    case FRV_OPERAND_LOCK :
349 
      print_normal (cd, info, fields->f_lock, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
350 
      break;
351 
    case FRV_OPERAND_PACK :
352 
      print_keyword (cd, info, & frv_cgen_opval_h_pack, fields->f_pack, 0);
353 
      break;
354 
    case FRV_OPERAND_S10 :
355 
      print_normal (cd, info, fields->f_s10, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
356 
      break;
357 
    case FRV_OPERAND_S12 :
358 
      print_normal (cd, info, fields->f_d12, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
359 
      break;
360 
    case FRV_OPERAND_S16 :
361 
      print_normal (cd, info, fields->f_s16, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
362 
      break;
363 
    case FRV_OPERAND_S5 :
364 
      print_normal (cd, info, fields->f_s5, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
365 
      break;
366 
    case FRV_OPERAND_S6 :
367 
      print_normal (cd, info, fields->f_s6, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
368 
      break;
369 
    case FRV_OPERAND_S6_1 :
370 
      print_normal (cd, info, fields->f_s6_1, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
371 
      break;
372 
    case FRV_OPERAND_SLO16 :
373 
      print_lo (cd, info, fields->f_s16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
374 
      break;
375 
    case FRV_OPERAND_SPR :
376 
      print_spr (cd, info, & frv_cgen_opval_spr_names, fields->f_spr, 0|(1<<CGEN_OPERAND_VIRTUAL));
377 
      break;
378 
    case FRV_OPERAND_U12 :
379 
      print_normal (cd, info, fields->f_u12, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
380 
      break;
381 
    case FRV_OPERAND_U16 :
382 
      print_normal (cd, info, fields->f_u16, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
383 
      break;
384 
    case FRV_OPERAND_U6 :
385 
      print_normal (cd, info, fields->f_u6, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
386 
      break;
387 
    case FRV_OPERAND_UHI16 :
388 
      print_hi (cd, info, fields->f_u16, 0, pc, length);
389 
      break;
390 
    case FRV_OPERAND_ULO16 :
391 
      print_lo (cd, info, fields->f_u16, 0, pc, length);
392 
      break;
393 
 
394 
    default :
395 
      /* xgettext:c-format */
396 
      fprintf (stderr, _("Unrecognized field %d while printing insn.\n"),
397 
               opindex);
398 
    abort ();
399 
  }
400 
}
401 
 
402 
cgen_print_fn * const frv_cgen_print_handlers[] =
403 
{
404 
  print_insn_normal,
405 
};
406 
 
407 
 
408 
void
409 
frv_cgen_init_dis (CGEN_CPU_DESC cd)
410 
{
411 
  frv_cgen_init_opcode_table (cd);
412 
  frv_cgen_init_ibld_table (cd);
413 
  cd->print_handlers = & frv_cgen_print_handlers[0];
414 
  cd->print_operand = frv_cgen_print_operand;
415 
}
416 
 
417 
 
418 
/* Default print handler.  */
419 
 
420 
static void
421 
print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
422 
              void *dis_info,
423 
              long value,
424 
              unsigned int attrs,
425 
              bfd_vma pc ATTRIBUTE_UNUSED,
426 
              int length ATTRIBUTE_UNUSED)
427 
{
428 
  disassemble_info *info = (disassemble_info *) dis_info;
429 
 
430 
  /* Print the operand as directed by the attributes.  */
431 
  if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
432 
    ; /* nothing to do */
433 
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
434 
    (*info->fprintf_func) (info->stream, "%ld", value);
435 
  else
436 
    (*info->fprintf_func) (info->stream, "0x%lx", value);
437 
}
438 
 
439 
/* Default address handler.  */
440 
 
441 
static void
442 
print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
443 
               void *dis_info,
444 
               bfd_vma value,
445 
               unsigned int attrs,
446 
               bfd_vma pc ATTRIBUTE_UNUSED,
447 
               int length ATTRIBUTE_UNUSED)
448 
{
449 
  disassemble_info *info = (disassemble_info *) dis_info;
450 
 
451 
  /* Print the operand as directed by the attributes.  */
452 
  if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
453 
    ; /* Nothing to do.  */
454 
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
455 
    (*info->print_address_func) (value, info);
456 
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
457 
    (*info->print_address_func) (value, info);
458 
  else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
459 
    (*info->fprintf_func) (info->stream, "%ld", (long) value);
460 
  else
461 
    (*info->fprintf_func) (info->stream, "0x%lx", (long) value);
462 
}
463 
 
464 
/* Keyword print handler.  */
465 
 
466 
static void
467 
print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
468 
               void *dis_info,
469 
               CGEN_KEYWORD *keyword_table,
470 
               long value,
471 
               unsigned int attrs ATTRIBUTE_UNUSED)
472 
{
473 
  disassemble_info *info = (disassemble_info *) dis_info;
474 
  const CGEN_KEYWORD_ENTRY *ke;
475 
 
476 
  ke = cgen_keyword_lookup_value (keyword_table, value);
477 
  if (ke != NULL)
478 
    (*info->fprintf_func) (info->stream, "%s", ke->name);
479 
  else
480 
    (*info->fprintf_func) (info->stream, "???");
481 
}
482 
 
483 
/* Default insn printer.
484 
 
485 
   DIS_INFO is defined as `void *' so the disassembler needn't know anything
486 
   about disassemble_info.  */
487 
 
488 
static void
489 
print_insn_normal (CGEN_CPU_DESC cd,
490 
                   void *dis_info,
491 
                   const CGEN_INSN *insn,
492 
                   CGEN_FIELDS *fields,
493 
                   bfd_vma pc,
494 
                   int length)
495 
{
496 
  const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
497 
  disassemble_info *info = (disassemble_info *) dis_info;
498 
  const CGEN_SYNTAX_CHAR_TYPE *syn;
499 
 
500 
  CGEN_INIT_PRINT (cd);
501 
 
502 
  for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
503 
    {
504 
      if (CGEN_SYNTAX_MNEMONIC_P (*syn))
505 
        {
506 
          (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
507 
          continue;
508 
        }
509 
      if (CGEN_SYNTAX_CHAR_P (*syn))
510 
        {
511 
          (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
512 
          continue;
513 
        }
514 
 
515 
      /* We have an operand.  */
516 
      frv_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
517 
                                 fields, CGEN_INSN_ATTRS (insn), pc, length);
518 
    }
519 
}
520 
 
521 
/* Subroutine of print_insn. Reads an insn into the given buffers and updates
522 
   the extract info.
523 
   Returns 0 if all is well, non-zero otherwise.  */
524 
 
525 
static int
526 
read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
527 
           bfd_vma pc,
528 
           disassemble_info *info,
529 
           bfd_byte *buf,
530 
           int buflen,
531 
           CGEN_EXTRACT_INFO *ex_info,
532 
           unsigned long *insn_value)
533 
{
534 
  int status = (*info->read_memory_func) (pc, buf, buflen, info);
535 
 
536 
  if (status != 0)
537 
    {
538 
      (*info->memory_error_func) (status, pc, info);
539 
      return -1;
540 
    }
541 
 
542 
  ex_info->dis_info = info;
543 
  ex_info->valid = (1 << buflen) - 1;
544 
  ex_info->insn_bytes = buf;
545 
 
546 
  *insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
547 
  return 0;
548 
}
549 
 
550 
/* Utility to print an insn.
551 
   BUF is the base part of the insn, target byte order, BUFLEN bytes long.
552 
   The result is the size of the insn in bytes or zero for an unknown insn
553 
   or -1 if an error occurs fetching data (memory_error_func will have
554 
   been called).  */
555 
 
556 
static int
557 
print_insn (CGEN_CPU_DESC cd,
558 
            bfd_vma pc,
559 
            disassemble_info *info,
560 
            bfd_byte *buf,
561 
            unsigned int buflen)
562 
{
563 
  CGEN_INSN_INT insn_value;
564 
  const CGEN_INSN_LIST *insn_list;
565 
  CGEN_EXTRACT_INFO ex_info;
566 
  int basesize;
567 
 
568 
  /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
569 
  basesize = cd->base_insn_bitsize < buflen * 8 ?
570 
                                     cd->base_insn_bitsize : buflen * 8;
571 
  insn_value = cgen_get_insn_value (cd, buf, basesize);
572 
 
573 
 
574 
  /* Fill in ex_info fields like read_insn would.  Don't actually call
575 
     read_insn, since the incoming buffer is already read (and possibly
576 
     modified a la m32r).  */
577 
  ex_info.valid = (1 << buflen) - 1;
578 
  ex_info.dis_info = info;
579 
  ex_info.insn_bytes = buf;
580 
 
581 
  /* The instructions are stored in hash lists.
582 
     Pick the first one and keep trying until we find the right one.  */
583 
 
584 
  insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
585 
  while (insn_list != NULL)
586 
    {
587 
      const CGEN_INSN *insn = insn_list->insn;
588 
      CGEN_FIELDS fields;
589 
      int length;
590 
      unsigned long insn_value_cropped;
591 
 
592 
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
593 
      /* Not needed as insn shouldn't be in hash lists if not supported.  */
594 
      /* Supported by this cpu?  */
595 
      if (! frv_cgen_insn_supported (cd, insn))
596 
        {
597 
          insn_list = CGEN_DIS_NEXT_INSN (insn_list);
598 
          continue;
599 
        }
600 
#endif
601 
 
602 
      /* Basic bit mask must be correct.  */
603 
      /* ??? May wish to allow target to defer this check until the extract
604 
         handler.  */
605 
 
606 
      /* Base size may exceed this instruction's size.  Extract the
607 
         relevant part from the buffer. */
608 
      if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
609 
          (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
610 
        insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
611 
                                           info->endian == BFD_ENDIAN_BIG);
612 
      else
613 
        insn_value_cropped = insn_value;
614 
 
615 
      if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
616 
          == CGEN_INSN_BASE_VALUE (insn))
617 
        {
618 
          /* Printing is handled in two passes.  The first pass parses the
619 
             machine insn and extracts the fields.  The second pass prints
620 
             them.  */
621 
 
622 
          /* Make sure the entire insn is loaded into insn_value, if it
623 
             can fit.  */
624 
          if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
625 
              (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
626 
            {
627 
              unsigned long full_insn_value;
628 
              int rc = read_insn (cd, pc, info, buf,
629 
                                  CGEN_INSN_BITSIZE (insn) / 8,
630 
                                  & ex_info, & full_insn_value);
631 
              if (rc != 0)
632 
                return rc;
633 
              length = CGEN_EXTRACT_FN (cd, insn)
634 
                (cd, insn, &ex_info, full_insn_value, &fields, pc);
635 
            }
636 
          else
637 
            length = CGEN_EXTRACT_FN (cd, insn)
638 
              (cd, insn, &ex_info, insn_value_cropped, &fields, pc);
639 
 
640 
          /* Length < 0 -> error.  */
641 
          if (length < 0)
642 
            return length;
643 
          if (length > 0)
644 
            {
645 
              CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
646 
              /* Length is in bits, result is in bytes.  */
647 
              return length / 8;
648 
            }
649 
        }
650 
 
651 
      insn_list = CGEN_DIS_NEXT_INSN (insn_list);
652 
    }
653 
 
654 
  return 0;
655 
}
656 
 
657 
/* Default value for CGEN_PRINT_INSN.
658 
   The result is the size of the insn in bytes or zero for an unknown insn
659 
   or -1 if an error occured fetching bytes.  */
660 
 
661 
#ifndef CGEN_PRINT_INSN
662 
#define CGEN_PRINT_INSN default_print_insn
663 
#endif
664 
 
665 
static int
666 
default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
667 
{
668 
  bfd_byte buf[CGEN_MAX_INSN_SIZE];
669 
  int buflen;
670 
  int status;
671 
 
672 
  /* Attempt to read the base part of the insn.  */
673 
  buflen = cd->base_insn_bitsize / 8;
674 
  status = (*info->read_memory_func) (pc, buf, buflen, info);
675 
 
676 
  /* Try again with the minimum part, if min < base.  */
677 
  if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
678 
    {
679 
      buflen = cd->min_insn_bitsize / 8;
680 
      status = (*info->read_memory_func) (pc, buf, buflen, info);
681 
    }
682 
 
683 
  if (status != 0)
684 
    {
685 
      (*info->memory_error_func) (status, pc, info);
686 
      return -1;
687 
    }
688 
 
689 
  return print_insn (cd, pc, info, buf, buflen);
690 
}
691 
 
692 
/* Main entry point.
693 
   Print one instruction from PC on INFO->STREAM.
694 
   Return the size of the instruction (in bytes).  */
695 
 
696 
typedef struct cpu_desc_list
697 
{
698 
  struct cpu_desc_list *next;
699 
  CGEN_BITSET *isa;
700 
  int mach;
701 
  int endian;
702 
  CGEN_CPU_DESC cd;
703 
} cpu_desc_list;
704 
 
705 
int
706 
print_insn_frv (bfd_vma pc, disassemble_info *info)
707 
{
708 
  static cpu_desc_list *cd_list = 0;
709 
  cpu_desc_list *cl = 0;
710 
  static CGEN_CPU_DESC cd = 0;
711 
  static CGEN_BITSET *prev_isa;
712 
  static int prev_mach;
713 
  static int prev_endian;
714 
  int length;
715 
  CGEN_BITSET *isa;
716 
  int mach;
717 
  int endian = (info->endian == BFD_ENDIAN_BIG
718 
                ? CGEN_ENDIAN_BIG
719 
                : CGEN_ENDIAN_LITTLE);
720 
  enum bfd_architecture arch;
721 
 
722 
  /* ??? gdb will set mach but leave the architecture as "unknown" */
723 
#ifndef CGEN_BFD_ARCH
724 
#define CGEN_BFD_ARCH bfd_arch_frv
725 
#endif
726 
  arch = info->arch;
727 
  if (arch == bfd_arch_unknown)
728 
    arch = CGEN_BFD_ARCH;
729 
 
730 
  /* There's no standard way to compute the machine or isa number
731 
     so we leave it to the target.  */
732 
#ifdef CGEN_COMPUTE_MACH
733 
  mach = CGEN_COMPUTE_MACH (info);
734 
#else
735 
  mach = info->mach;
736 
#endif
737 
 
738 
#ifdef CGEN_COMPUTE_ISA
739 
  {
740 
    static CGEN_BITSET *permanent_isa;
741 
 
742 
    if (!permanent_isa)
743 
      permanent_isa = cgen_bitset_create (MAX_ISAS);
744 
    isa = permanent_isa;
745 
    cgen_bitset_clear (isa);
746 
    cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
747 
  }
748 
#else
749 
  isa = info->insn_sets;
750 
#endif
751 
 
752 
  /* If we've switched cpu's, try to find a handle we've used before */
753 
  if (cd
754 
      && (cgen_bitset_compare (isa, prev_isa) != 0
755 
          || mach != prev_mach
756 
          || endian != prev_endian))
757 
    {
758 
      cd = 0;
759 
      for (cl = cd_list; cl; cl = cl->next)
760 
        {
761 
          if (cgen_bitset_compare (cl->isa, isa) == 0 &&
762 
              cl->mach == mach &&
763 
              cl->endian == endian)
764 
            {
765 
              cd = cl->cd;
766 
              prev_isa = cd->isas;
767 
              break;
768 
            }
769 
        }
770 
    }
771 
 
772 
  /* If we haven't initialized yet, initialize the opcode table.  */
773 
  if (! cd)
774 
    {
775 
      const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
776 
      const char *mach_name;
777 
 
778 
      if (!arch_type)
779 
        abort ();
780 
      mach_name = arch_type->printable_name;
781 
 
782 
      prev_isa = cgen_bitset_copy (isa);
783 
      prev_mach = mach;
784 
      prev_endian = endian;
785 
      cd = frv_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
786 
                                 CGEN_CPU_OPEN_BFDMACH, mach_name,
787 
                                 CGEN_CPU_OPEN_ENDIAN, prev_endian,
788 
                                 CGEN_CPU_OPEN_END);
789 
      if (!cd)
790 
        abort ();
791 
 
792 
      /* Save this away for future reference.  */
793 
      cl = xmalloc (sizeof (struct cpu_desc_list));
794 
      cl->cd = cd;
795 
      cl->isa = prev_isa;
796 
      cl->mach = mach;
797 
      cl->endian = endian;
798 
      cl->next = cd_list;
799 
      cd_list = cl;
800 
 
801 
      frv_cgen_init_dis (cd);
802 
    }
803 
 
804 
  /* We try to have as much common code as possible.
805 
     But at this point some targets need to take over.  */
806 
  /* ??? Some targets may need a hook elsewhere.  Try to avoid this,
807 
     but if not possible try to move this hook elsewhere rather than
808 
     have two hooks.  */
809 
  length = CGEN_PRINT_INSN (cd, pc, info);
810 
  if (length > 0)
811 
    return length;
812 
  if (length < 0)
813 
    return -1;
814 
 
815 
  (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
816 
  return cd->default_insn_bitsize / 8;
817 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.