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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [opcodes/] [z80-dis.c] - Blame information for rev 258

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1 24 jeremybenn 
/* Print Z80 and R800 instructions
2 225 jeremybenn 
   Copyright 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
3 24 jeremybenn 
   Contributed by Arnold Metselaar <arnold_m@operamail.com>
4 
 
5 
   This file is part of the GNU opcodes library.
6 
 
7 
   This library is free software; you can redistribute it and/or modify
8 
   it under the terms of the GNU General Public License as published by
9 
   the Free Software Foundation; either version 3, or (at your option)
10 
   any later version.
11 
 
12 
   It is distributed in the hope that it will be useful, but WITHOUT
13 
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
15 
   License for more details.
16 
 
17 
   You should have received a copy of the GNU General Public License
18 
   along with this program; if not, write to the Free Software
19 
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 
   MA 02110-1301, USA.  */
21 
 
22 
#include "sysdep.h"
23 
#include "dis-asm.h"
24 
#include <stdio.h>
25 
 
26 
struct buffer
27 
{
28 
  bfd_vma base;
29 
  int n_fetch;
30 
  int n_used;
31 
  signed char data[4];
32 
} ;
33 
 
34 
typedef int (*func)(struct buffer *, disassemble_info *, char *);
35 
 
36 
struct tab_elt
37 
{
38 
  unsigned char val;
39 
  unsigned char mask;
40 
  func          fp;
41 
  char *        text;
42 
} ;
43 
 
44 
#define TXTSIZ 24
45 
/* Names of 16-bit registers.  */
46 
static char * rr_str[] = { "bc", "de", "hl", "sp" };
47 
/* Names of 8-bit registers.  */
48 
static char * r_str[]  = { "b", "c", "d", "e", "h", "l", "(hl)", "a" };
49 
/* Texts for condition codes.  */
50 
static char * cc_str[] = { "nz", "z", "nc", "c", "po", "pe", "p", "m" };
51 
/* Instruction names for 8-bit arithmetic, operand "a" is often implicit */
52 
static char * arit_str[] =
53 
{
54 
  "add a,", "adc a,", "sub ", "sbc a,", "and ", "xor ", "or ", "cp "
55 
} ;
56 
 
57 
static int
58 
fetch_data (struct buffer *buf, disassemble_info * info, int n)
59 
{
60 
  int r;
61 
 
62 
  if (buf->n_fetch + n > 4)
63 
    abort ();
64 
 
65 
  r = info->read_memory_func (buf->base + buf->n_fetch,
66 
                              (unsigned char*) buf->data + buf->n_fetch,
67 
                              n, info);
68 
  if (r == 0)
69 
    buf->n_fetch += n;
70 
  return !r;
71 
}
72 
 
73 
static int
74 
prt (struct buffer *buf, disassemble_info * info, char *txt)
75 
{
76 
  info->fprintf_func (info->stream, "%s", txt);
77 
  buf->n_used = buf->n_fetch;
78 
  return 1;
79 
}
80 
 
81 
static int
82 
prt_e (struct buffer *buf, disassemble_info * info, char *txt)
83 
{
84 
  char e;
85 
  int target_addr;
86 
 
87 
  if (fetch_data (buf, info, 1))
88 
    {
89 
      e = buf->data[1];
90 
      target_addr = (buf->base + 2 + e) & 0xffff;
91 
      buf->n_used = buf->n_fetch;
92 
      info->fprintf_func (info->stream, "%s0x%04x", txt, target_addr);
93 
    }
94 
  else
95 
    buf->n_used = -1;
96 
 
97 
  return buf->n_used;
98 
}
99 
 
100 
static int
101 
jr_cc (struct buffer *buf, disassemble_info * info, char *txt)
102 
{
103 
  char mytxt[TXTSIZ];
104 
 
105 
  snprintf (mytxt, TXTSIZ, txt, cc_str[(buf->data[0] >> 3) & 3]);
106 
  return prt_e (buf, info, mytxt);
107 
}
108 
 
109 
static int
110 
prt_nn (struct buffer *buf, disassemble_info * info, char *txt)
111 
{
112 
  int nn;
113 
  unsigned char *p;
114 
 
115 
  p = (unsigned char*) buf->data + buf->n_fetch;
116 
  if (fetch_data (buf, info, 2))
117 
    {
118 
      nn = p[0] + (p[1] << 8);
119 
      info->fprintf_func (info->stream, txt, nn);
120 
      buf->n_used = buf->n_fetch;
121 
    }
122 
  else
123 
    buf->n_used = -1;
124 
  return buf->n_used;
125 
}
126 
 
127 
static int
128 
prt_rr_nn (struct buffer *buf, disassemble_info * info, char *txt)
129 
{
130 
  char mytxt[TXTSIZ];
131 225 jeremybenn 
  int rr;
132 24 jeremybenn 
 
133 225 jeremybenn 
  rr = (buf->data[buf->n_fetch - 1] >> 4) & 3;
134 
  snprintf (mytxt, TXTSIZ, txt, rr_str[rr]);
135 24 jeremybenn 
  return prt_nn (buf, info, mytxt);
136 
}
137 
 
138 
static int
139 
prt_rr (struct buffer *buf, disassemble_info * info, char *txt)
140 
{
141 
  info->fprintf_func (info->stream, "%s%s", txt,
142 
                      rr_str[(buf->data[buf->n_fetch - 1] >> 4) & 3]);
143 
  buf->n_used = buf->n_fetch;
144 
  return buf->n_used;
145 
}
146 
 
147 
static int
148 
prt_n (struct buffer *buf, disassemble_info * info, char *txt)
149 
{
150 
  int n;
151 
  unsigned char *p;
152 
 
153 
  p = (unsigned char*) buf->data + buf->n_fetch;
154 
 
155 
  if (fetch_data (buf, info, 1))
156 
    {
157 
      n = p[0];
158 
      info->fprintf_func (info->stream, txt, n);
159 
      buf->n_used = buf->n_fetch;
160 
    }
161 
  else
162 
    buf->n_used = -1;
163 
 
164 
  return buf->n_used;
165 
}
166 
 
167 
static int
168 
ld_r_n (struct buffer *buf, disassemble_info * info, char *txt)
169 
{
170 
  char mytxt[TXTSIZ];
171 
 
172 
  snprintf (mytxt, TXTSIZ, txt, r_str[(buf->data[0] >> 3) & 7]);
173 
  return prt_n (buf, info, mytxt);
174 
}
175 
 
176 
static int
177 
prt_r (struct buffer *buf, disassemble_info * info, char *txt)
178 
{
179 
  info->fprintf_func (info->stream, txt,
180 
                      r_str[(buf->data[buf->n_fetch - 1] >> 3) & 7]);
181 
  buf->n_used = buf->n_fetch;
182 
  return buf->n_used;
183 
}
184 
 
185 
static int
186 
ld_r_r (struct buffer *buf, disassemble_info * info, char *txt)
187 
{
188 
  info->fprintf_func (info->stream, txt,
189 
                      r_str[(buf->data[buf->n_fetch - 1] >> 3) & 7],
190 
                      r_str[buf->data[buf->n_fetch - 1] & 7]);
191 
  buf->n_used = buf->n_fetch;
192 
  return buf->n_used;
193 
}
194 
 
195 
static int
196 
arit_r (struct buffer *buf, disassemble_info * info, char *txt)
197 
{
198 
  info->fprintf_func (info->stream, txt,
199 
                      arit_str[(buf->data[buf->n_fetch - 1] >> 3) & 7],
200 
                      r_str[buf->data[buf->n_fetch - 1] & 7]);
201 
  buf->n_used = buf->n_fetch;
202 
  return buf->n_used;
203 
}
204 
 
205 
static int
206 
prt_cc (struct buffer *buf, disassemble_info * info, char *txt)
207 
{
208 
  info->fprintf_func (info->stream, "%s%s", txt,
209 
                      cc_str[(buf->data[0] >> 3) & 7]);
210 
  buf->n_used = buf->n_fetch;
211 
  return buf->n_used;
212 
}
213 
 
214 
static int
215 
pop_rr (struct buffer *buf, disassemble_info * info, char *txt)
216 
{
217 
  static char *rr_stack[] = { "bc","de","hl","af"};
218 
 
219 
  info->fprintf_func (info->stream, "%s %s", txt,
220 
                      rr_stack[(buf->data[0] >> 4) & 3]);
221 
  buf->n_used = buf->n_fetch;
222 
  return buf->n_used;
223 
}
224 
 
225 
 
226 
static int
227 
jp_cc_nn (struct buffer *buf, disassemble_info * info, char *txt)
228 
{
229 
  char mytxt[TXTSIZ];
230 
 
231 
  snprintf (mytxt,TXTSIZ,
232 
            "%s%s,0x%%04x", txt, cc_str[(buf->data[0] >> 3) & 7]);
233 
  return prt_nn (buf, info, mytxt);
234 
}
235 
 
236 
static int
237 
arit_n (struct buffer *buf, disassemble_info * info, char *txt)
238 
{
239 
  char mytxt[TXTSIZ];
240 
 
241 
  snprintf (mytxt,TXTSIZ, txt, arit_str[(buf->data[0] >> 3) & 7]);
242 
  return prt_n (buf, info, mytxt);
243 
}
244 
 
245 
static int
246 
rst (struct buffer *buf, disassemble_info * info, char *txt)
247 
{
248 
  info->fprintf_func (info->stream, txt, buf->data[0] & 0x38);
249 
  buf->n_used = buf->n_fetch;
250 
  return buf->n_used;
251 
}
252 
 
253 
 
254 
static int
255 
cis (struct buffer *buf, disassemble_info * info, char *txt ATTRIBUTE_UNUSED)
256 
{
257 
  static char * opar[] = { "ld", "cp", "in", "out" };
258 
  char * op;
259 
  char c;
260 
 
261 
  c = buf->data[1];
262 
  op = ((0x13 & c) == 0x13) ? "ot" : (opar[c & 3]);
263 
  info->fprintf_func (info->stream,
264 
                      "%s%c%s", op,
265 
                      (c & 0x08) ? 'd' : 'i',
266 
                      (c & 0x10) ? "r" : "");
267 
  buf->n_used = 2;
268 
  return buf->n_used;
269 
}
270 
 
271 
static int
272 
dump (struct buffer *buf, disassemble_info * info, char *txt)
273 
{
274 
  int i;
275 
 
276 
  info->fprintf_func (info->stream, "defb ");
277 
  for (i = 0; txt[i]; ++i)
278 
    info->fprintf_func (info->stream, i ? ", 0x%02x" : "0x%02x",
279 
                        (unsigned char) buf->data[i]);
280 
  buf->n_used = i;
281 
  return buf->n_used;
282 
}
283 
 
284 
/* Table to disassemble machine codes with prefix 0xED.  */
285 
struct tab_elt opc_ed[] =
286 
{
287 
  { 0x70, 0xFF, prt, "in f,(c)" },
288 
  { 0x70, 0xFF, dump, "xx" },
289 
  { 0x40, 0xC7, prt_r, "in %s,(c)" },
290 
  { 0x71, 0xFF, prt, "out (c),0" },
291 
  { 0x70, 0xFF, dump, "xx" },
292 
  { 0x41, 0xC7, prt_r, "out (c),%s" },
293 
  { 0x42, 0xCF, prt_rr, "sbc hl," },
294 
  { 0x43, 0xCF, prt_rr_nn, "ld (0x%%04x),%s" },
295 
  { 0x44, 0xFF, prt, "neg" },
296 
  { 0x45, 0xFF, prt, "retn" },
297 
  { 0x46, 0xFF, prt, "im 0" },
298 
  { 0x47, 0xFF, prt, "ld i,a" },
299 
  { 0x4A, 0xCF, prt_rr, "adc hl," },
300 
  { 0x4B, 0xCF, prt_rr_nn, "ld %s,(0x%%04x)" },
301 
  { 0x4D, 0xFF, prt, "reti" },
302 225 jeremybenn 
  { 0x4F, 0xFF, prt, "ld r,a" },
303 24 jeremybenn 
  { 0x56, 0xFF, prt, "im 1" },
304 
  { 0x57, 0xFF, prt, "ld a,i" },
305 
  { 0x5E, 0xFF, prt, "im 2" },
306 225 jeremybenn 
  { 0x5F, 0xFF, prt, "ld a,r" },
307 24 jeremybenn 
  { 0x67, 0xFF, prt, "rrd" },
308 
  { 0x6F, 0xFF, prt, "rld" },
309 
  { 0xA0, 0xE4, cis, "" },
310 
  { 0xC3, 0xFF, prt, "muluw hl,bc" },
311 
  { 0xC5, 0xE7, prt_r, "mulub a,%s" },
312 
  { 0xF3, 0xFF, prt, "muluw hl,sp" },
313 
  { 0x00, 0x00, dump, "xx" }
314 
};
315 
 
316 
static int
317 
pref_ed (struct buffer * buf, disassemble_info * info,
318 
         char* txt ATTRIBUTE_UNUSED)
319 
{
320 
  struct tab_elt *p;
321 
 
322 
  if (fetch_data(buf, info, 1))
323 
    {
324 
      for (p = opc_ed; p->val != (buf->data[1] & p->mask); ++p)
325 
        ;
326 
      p->fp (buf, info, p->text);
327 
    }
328 
  else
329 
    buf->n_used = -1;
330 
 
331 
  return buf->n_used;
332 
}
333 
 
334 
/* Instruction names for the instructions addressing single bits.  */
335 
static char *cb1_str[] = { "", "bit", "res", "set"};
336 
/* Instruction names for shifts and rotates.  */
337 
static char *cb2_str[] =
338 
{
339 
  "rlc", "rrc", "rl", "rr", "sla", "sra", "sli", "srl"
340 
};
341 
 
342 
static int
343 
pref_cb (struct buffer * buf, disassemble_info * info,
344 
         char* txt ATTRIBUTE_UNUSED)
345 
{
346 
  if (fetch_data (buf, info, 1))
347 
    {
348 
      buf->n_used = 2;
349 
      if ((buf->data[1] & 0xc0) == 0)
350 
        info->fprintf_func (info->stream, "%s %s",
351 
                            cb2_str[(buf->data[1] >> 3) & 7],
352 
                            r_str[buf->data[1] & 7]);
353 
      else
354 
        info->fprintf_func (info->stream, "%s %d,%s",
355 
                            cb1_str[(buf->data[1] >> 6) & 3],
356 
                            (buf->data[1] >> 3) & 7,
357 
                            r_str[buf->data[1] & 7]);
358 
    }
359 
  else
360 
    buf->n_used = -1;
361 
 
362 
  return buf->n_used;
363 
}
364 
 
365 
static int
366 
addvv (struct buffer * buf, disassemble_info * info, char* txt)
367 
{
368 
  info->fprintf_func (info->stream, "add %s,%s", txt, txt);
369 
 
370 
  return buf->n_used = buf->n_fetch;
371 
}
372 
 
373 
static int
374 
ld_v_v (struct buffer * buf, disassemble_info * info, char* txt)
375 
{
376 
  char mytxt[TXTSIZ];
377 
 
378 
  snprintf (mytxt, TXTSIZ, "ld %s%%s,%s%%s", txt, txt);
379 
  return ld_r_r (buf, info, mytxt);
380 
}
381 
 
382 
static int
383 
prt_d (struct buffer *buf, disassemble_info * info, char *txt)
384 
{
385 
  int d;
386 
  signed char *p;
387 
 
388 
  p = buf->data + buf->n_fetch;
389 
 
390 
  if (fetch_data (buf, info, 1))
391 
    {
392 
      d = p[0];
393 
      info->fprintf_func (info->stream, txt, d);
394 
      buf->n_used = buf->n_fetch;
395 
    }
396 
  else
397 
    buf->n_used = -1;
398 
 
399 
  return buf->n_used;
400 
}
401 
 
402 
static int
403 
prt_d_n (struct buffer *buf, disassemble_info * info, char *txt)
404 
{
405 
  char mytxt[TXTSIZ];
406 
  int d;
407 
  signed char *p;
408 
 
409 
  p = buf->data + buf->n_fetch;
410 
 
411 
  if (fetch_data (buf, info, 1))
412 
    {
413 
      d = p[0];
414 
      snprintf (mytxt, TXTSIZ, txt, d);
415 
      return prt_n (buf, info, mytxt);
416 
    }
417 
  else
418 
    buf->n_used = -1;
419 
 
420 
  return buf->n_used;
421 
}
422 
 
423 
static int
424 
arit_d (struct buffer *buf, disassemble_info * info, char *txt)
425 
{
426 
  char mytxt[TXTSIZ];
427 
  signed char c;
428 
 
429 
  c = buf->data[buf->n_fetch - 1];
430 
  snprintf (mytxt, TXTSIZ, txt, arit_str[(c >> 3) & 7]);
431 
  return prt_d (buf, info, mytxt);
432 
}
433 
 
434 
static int
435 
ld_r_d (struct buffer *buf, disassemble_info * info, char *txt)
436 
{
437 
  char mytxt[TXTSIZ];
438 
  signed char c;
439 
 
440 
  c = buf->data[buf->n_fetch - 1];
441 
  snprintf (mytxt, TXTSIZ, txt, r_str[(c >> 3) & 7]);
442 
  return prt_d (buf, info, mytxt);
443 
}
444 
 
445 
static int
446 
ld_d_r(struct buffer *buf, disassemble_info * info, char *txt)
447 
{
448 
  char mytxt[TXTSIZ];
449 
  signed char c;
450 
 
451 
  c = buf->data[buf->n_fetch - 1];
452 
  snprintf (mytxt, TXTSIZ, txt, r_str[c & 7]);
453 
  return prt_d (buf, info, mytxt);
454 
}
455 
 
456 
static int
457 
pref_xd_cb (struct buffer * buf, disassemble_info * info, char* txt)
458 
{
459 
  if (fetch_data (buf, info, 2))
460 
    {
461 
      int d;
462 
      char arg[TXTSIZ];
463 
      signed char *p;
464 
 
465 
      buf->n_used = 4;
466 
      p = buf->data;
467 
      d = p[2];
468 
 
469 
      if (((p[3] & 0xC0) == 0x40) || ((p[3] & 7) == 0x06))
470 
        snprintf (arg, TXTSIZ, "(%s%+d)", txt, d);
471 
      else
472 
        snprintf (arg, TXTSIZ, "(%s%+d),%s", txt, d, r_str[p[3] & 7]);
473 
 
474 
      if ((p[3] & 0xc0) == 0)
475 
        info->fprintf_func (info->stream, "%s %s",
476 
                            cb2_str[(buf->data[3] >> 3) & 7],
477 
                            arg);
478 
      else
479 
        info->fprintf_func (info->stream, "%s %d,%s",
480 
                            cb1_str[(buf->data[3] >> 6) & 3],
481 
                            (buf->data[3] >> 3) & 7,
482 
                            arg);
483 
    }
484 
  else
485 
    buf->n_used = -1;
486 
 
487 
  return buf->n_used;
488 
}
489 
 
490 
/* Table to disassemble machine codes with prefix 0xDD or 0xFD.  */
491 
static struct tab_elt opc_ind[] =
492 
{
493 
  { 0x24, 0xF7, prt_r, "inc %s%%s" },
494 
  { 0x25, 0xF7, prt_r, "dec %s%%s" },
495 
  { 0x26, 0xF7, ld_r_n, "ld %s%%s,0x%%%%02x" },
496 
  { 0x21, 0xFF, prt_nn, "ld %s,0x%%04x" },
497 
  { 0x22, 0xFF, prt_nn, "ld (0x%%04x),%s" },
498 
  { 0x2A, 0xFF, prt_nn, "ld %s,(0x%%04x)" },
499 
  { 0x23, 0xFF, prt, "inc %s" },
500 
  { 0x2B, 0xFF, prt, "dec %s" },
501 
  { 0x29, 0xFF, addvv, "%s" },
502 
  { 0x09, 0xCF, prt_rr, "add %s," },
503 
  { 0x34, 0xFF, prt_d, "inc (%s%%+d)" },
504 
  { 0x35, 0xFF, prt_d, "dec (%s%%+d)" },
505 
  { 0x36, 0xFF, prt_d_n, "ld (%s%%+d),0x%%%%02x" },
506 
 
507 
  { 0x76, 0xFF, dump, "h" },
508 
  { 0x46, 0xC7, ld_r_d, "ld %%s,(%s%%%%+d)" },
509 
  { 0x70, 0xF8, ld_d_r, "ld (%s%%%%+d),%%s" },
510 
  { 0x64, 0xF6, ld_v_v, "%s" },
511 
  { 0x60, 0xF0, ld_r_r, "ld %s%%s,%%s" },
512 
  { 0x44, 0xC6, ld_r_r, "ld %%s,%s%%s" },
513 
 
514 
  { 0x86, 0xC7, arit_d, "%%s(%s%%%%+d)" },
515 
  { 0x84, 0xC6, arit_r, "%%s%s%%s" },
516 
 
517 
  { 0xE1, 0xFF, prt, "pop %s" },
518 
  { 0xE5, 0xFF, prt, "push %s" },
519 
  { 0xCB, 0xFF, pref_xd_cb, "%s" },
520 
  { 0xE3, 0xFF, prt, "ex (sp),%s" },
521 
  { 0xE9, 0xFF, prt, "jp (%s)" },
522 
  { 0xF9, 0xFF, prt, "ld sp,%s" },
523 
  { 0x00, 0x00, dump, "?" },
524 
} ;
525 
 
526 
static int
527 
pref_ind (struct buffer * buf, disassemble_info * info, char* txt)
528 
{
529 
  if (fetch_data (buf, info, 1))
530 
    {
531 
      char mytxt[TXTSIZ];
532 
      struct tab_elt *p;
533 
 
534 
      for (p = opc_ind; p->val != (buf->data[1] & p->mask); ++p)
535 
        ;
536 
      snprintf (mytxt, TXTSIZ, p->text, txt);
537 
      p->fp (buf, info, mytxt);
538 
    }
539 
  else
540 
    buf->n_used = -1;
541 
 
542 
  return buf->n_used;
543 
}
544 
 
545 
/* Table to disassemble machine codes without prefix.  */
546 
static struct tab_elt opc_main[] =
547 
{
548 
  { 0x00, 0xFF, prt, "nop" },
549 
  { 0x01, 0xCF, prt_rr_nn, "ld %s,0x%%04x" },
550 
  { 0x02, 0xFF, prt, "ld (bc),a" },
551 
  { 0x03, 0xCF, prt_rr, "inc " },
552 
  { 0x04, 0xC7, prt_r, "inc %s" },
553 
  { 0x05, 0xC7, prt_r, "dec %s" },
554 
  { 0x06, 0xC7, ld_r_n, "ld %s,0x%%02x" },
555 
  { 0x07, 0xFF, prt, "rlca" },
556 
  { 0x08, 0xFF, prt, "ex af,af'" },
557 
  { 0x09, 0xCF, prt_rr, "add hl," },
558 
  { 0x0A, 0xFF, prt, "ld a,(bc)" },
559 
  { 0x0B, 0xCF, prt_rr, "dec " },
560 
  { 0x0F, 0xFF, prt, "rrca" },
561 
  { 0x10, 0xFF, prt_e, "djnz " },
562 
  { 0x12, 0xFF, prt, "ld (de),a" },
563 
  { 0x17, 0xFF, prt, "rla" },
564 
  { 0x18, 0xFF, prt_e, "jr "},
565 
  { 0x1A, 0xFF, prt, "ld a,(de)" },
566 
  { 0x1F, 0xFF, prt, "rra" },
567 
  { 0x20, 0xE7, jr_cc, "jr %s,"},
568 
  { 0x22, 0xFF, prt_nn, "ld (0x%04x),hl" },
569 
  { 0x27, 0xFF, prt, "daa"},
570 
  { 0x2A, 0xFF, prt_nn, "ld hl,(0x%04x)" },
571 
  { 0x2F, 0xFF, prt, "cpl" },
572 
  { 0x32, 0xFF, prt_nn, "ld (0x%04x),a" },
573 
  { 0x37, 0xFF, prt, "scf" },
574 
  { 0x3A, 0xFF, prt_nn, "ld a,(0x%04x)" },
575 
  { 0x3F, 0xFF, prt, "ccf" },
576 
 
577 
  { 0x76, 0xFF, prt, "halt" },
578 
  { 0x40, 0xC0, ld_r_r, "ld %s,%s"},
579 
 
580 
  { 0x80, 0xC0, arit_r, "%s%s" },
581 
 
582 
  { 0xC0, 0xC7, prt_cc, "ret " },
583 
  { 0xC1, 0xCF, pop_rr, "pop" },
584 
  { 0xC2, 0xC7, jp_cc_nn, "jp " },
585 
  { 0xC3, 0xFF, prt_nn, "jp 0x%04x" },
586 
  { 0xC4, 0xC7, jp_cc_nn, "call " },
587 
  { 0xC5, 0xCF, pop_rr, "push" },
588 
  { 0xC6, 0xC7, arit_n, "%s0x%%02x" },
589 
  { 0xC7, 0xC7, rst, "rst 0x%02x" },
590 
  { 0xC9, 0xFF, prt, "ret" },
591 
  { 0xCB, 0xFF, pref_cb, "" },
592 
  { 0xCD, 0xFF, prt_nn, "call 0x%04x" },
593 
  { 0xD3, 0xFF, prt_n, "out (0x%02x),a" },
594 
  { 0xD9, 0xFF, prt, "exx" },
595 
  { 0xDB, 0xFF, prt_n, "in a,(0x%02x)" },
596 
  { 0xDD, 0xFF, pref_ind, "ix" },
597 
  { 0xE3, 0xFF, prt, "ex (sp),hl" },
598 
  { 0xE9, 0xFF, prt, "jp (hl)" },
599 
  { 0xEB, 0xFF, prt, "ex de,hl" },
600 
  { 0xED, 0xFF, pref_ed, ""},
601 
  { 0xF3, 0xFF, prt, "di" },
602 
  { 0xF9, 0xFF, prt, "ld sp,hl" },
603 
  { 0xFB, 0xFF, prt, "ei" },
604 
  { 0xFD, 0xFF, pref_ind, "iy" },
605 
  { 0x00, 0x00, prt, "????" },
606 
} ;
607 
 
608 
int
609 
print_insn_z80 (bfd_vma addr, disassemble_info * info)
610 
{
611 
  struct buffer buf;
612 
  struct tab_elt *p;
613 
 
614 
  buf.base = addr;
615 
  buf.n_fetch = 0;
616 
  buf.n_used = 0;
617 
 
618 
  if (! fetch_data (& buf, info, 1))
619 
    return -1;
620 
 
621 
  for (p = opc_main; p->val != (buf.data[0] & p->mask); ++p)
622 
    ;
623 
  p->fp (& buf, info, p->text);
624 
 
625 
  return buf.n_used;
626 
}

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