Commit | Line | Data |
---|---|---|
3c9b82ba NC |
1 | /* Print Z80 and R800 instructions |
2 | Copyright 2005 Free Software Foundation, Inc. | |
3 | Contributed by Arnold Metselaar <arnold_m@operamail.com> | |
4 | ||
5 | This file is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the Free Software | |
17 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
18 | MA 02110-1301, USA. */ | |
19 | ||
20 | #include "sysdep.h" | |
21 | #include "dis-asm.h" | |
22 | #include <stdio.h> | |
23 | ||
24 | struct buffer | |
25 | { | |
26 | bfd_vma base; | |
27 | int n_fetch; | |
28 | int n_used; | |
9e919b5f | 29 | signed char data[4]; |
3c9b82ba NC |
30 | } ; |
31 | ||
32 | typedef int (*func)(struct buffer *, disassemble_info *, char *); | |
33 | ||
34 | struct tab_elt | |
35 | { | |
36 | unsigned char val; | |
37 | unsigned char mask; | |
38 | func fp; | |
39 | char * text; | |
40 | } ; | |
41 | ||
9e919b5f | 42 | #define TXTSIZ 24 |
3c9b82ba NC |
43 | /* Names of 16-bit registers. */ |
44 | static char * rr_str[] = { "bc", "de", "hl", "sp" }; | |
45 | /* Names of 8-bit registers. */ | |
46 | static char * r_str[] = { "b", "c", "d", "e", "h", "l", "(hl)", "a" }; | |
47 | /* Texts for condition codes. */ | |
48 | static char * cc_str[] = { "nz", "z", "nc", "c", "po", "pe", "p", "m" }; | |
49 | /* Instruction names for 8-bit arithmetic, operand "a" is often implicit */ | |
50 | static char * arit_str[] = | |
51 | { | |
52 | "add a,", "adc a,", "sub ", "sbc a,", "and ", "xor ", "or ", "cp " | |
53 | } ; | |
54 | \f | |
55 | static int | |
56 | fetch_data (struct buffer *buf, disassemble_info * info, int n) | |
57 | { | |
58 | int r; | |
59 | ||
60 | if (buf->n_fetch + n > 4) | |
61 | abort (); | |
62 | ||
63 | r = info->read_memory_func (buf->base + buf->n_fetch, | |
9e919b5f | 64 | (unsigned char*) buf->data + buf->n_fetch, |
3c9b82ba NC |
65 | n, info); |
66 | if (r == 0) | |
67 | buf->n_fetch += n; | |
68 | return !r; | |
69 | } | |
70 | ||
71 | static int | |
72 | prt (struct buffer *buf, disassemble_info * info, char *txt) | |
73 | { | |
74 | info->fprintf_func (info->stream, "%s", txt); | |
75 | buf->n_used = buf->n_fetch; | |
76 | return 1; | |
77 | } | |
78 | ||
79 | static int | |
80 | prt_e (struct buffer *buf, disassemble_info * info, char *txt) | |
81 | { | |
82 | char e; | |
83 | int target_addr; | |
84 | ||
85 | if (fetch_data (buf, info, 1)) | |
86 | { | |
87 | e = buf->data[1]; | |
88 | target_addr = (buf->base + 2 + e) & 0xffff; | |
89 | buf->n_used = buf->n_fetch; | |
90 | info->fprintf_func (info->stream, "%s0x%04x", txt, target_addr); | |
91 | } | |
92 | else | |
93 | buf->n_used = -1; | |
94 | ||
95 | return buf->n_used; | |
96 | } | |
97 | ||
98 | static int | |
99 | jr_cc (struct buffer *buf, disassemble_info * info, char *txt) | |
100 | { | |
101 | char mytxt[TXTSIZ]; | |
102 | ||
103 | snprintf (mytxt, TXTSIZ, txt, cc_str[(buf->data[0] >> 3) & 3]); | |
104 | return prt_e (buf, info, mytxt); | |
105 | } | |
106 | ||
107 | static int | |
108 | prt_nn (struct buffer *buf, disassemble_info * info, char *txt) | |
109 | { | |
110 | int nn; | |
111 | unsigned char *p; | |
112 | ||
113 | p = (unsigned char*) buf->data + buf->n_fetch; | |
114 | if (fetch_data (buf, info, 2)) | |
115 | { | |
116 | nn = p[0] + (p[1] << 8); | |
117 | info->fprintf_func (info->stream, txt, nn); | |
118 | buf->n_used = buf->n_fetch; | |
119 | } | |
120 | else | |
121 | buf->n_used = -1; | |
122 | return buf->n_used; | |
123 | } | |
124 | ||
125 | static int | |
126 | prt_rr_nn (struct buffer *buf, disassemble_info * info, char *txt) | |
127 | { | |
128 | char mytxt[TXTSIZ]; | |
129 | ||
130 | snprintf (mytxt, TXTSIZ, txt, rr_str[(buf->data[0] >> 4) & 3]); | |
131 | return prt_nn (buf, info, mytxt); | |
132 | } | |
133 | ||
134 | static int | |
135 | prt_rr (struct buffer *buf, disassemble_info * info, char *txt) | |
136 | { | |
137 | info->fprintf_func (info->stream, "%s%s", txt, | |
138 | rr_str[(buf->data[buf->n_fetch - 1] >> 4) & 3]); | |
139 | buf->n_used = buf->n_fetch; | |
140 | return buf->n_used; | |
141 | } | |
142 | ||
143 | static int | |
144 | prt_n (struct buffer *buf, disassemble_info * info, char *txt) | |
145 | { | |
146 | int n; | |
147 | unsigned char *p; | |
148 | ||
149 | p = (unsigned char*) buf->data + buf->n_fetch; | |
150 | ||
151 | if (fetch_data (buf, info, 1)) | |
152 | { | |
153 | n = p[0]; | |
154 | info->fprintf_func (info->stream, txt, n); | |
155 | buf->n_used = buf->n_fetch; | |
156 | } | |
157 | else | |
158 | buf->n_used = -1; | |
159 | ||
160 | return buf->n_used; | |
161 | } | |
162 | ||
163 | static int | |
164 | ld_r_n (struct buffer *buf, disassemble_info * info, char *txt) | |
165 | { | |
166 | char mytxt[TXTSIZ]; | |
167 | ||
168 | snprintf (mytxt, TXTSIZ, txt, r_str[(buf->data[0] >> 3) & 7]); | |
169 | return prt_n (buf, info, mytxt); | |
170 | } | |
171 | ||
172 | static int | |
173 | prt_r (struct buffer *buf, disassemble_info * info, char *txt) | |
174 | { | |
175 | info->fprintf_func (info->stream, txt, | |
176 | r_str[(buf->data[buf->n_fetch - 1] >> 3) & 7]); | |
177 | buf->n_used = buf->n_fetch; | |
178 | return buf->n_used; | |
179 | } | |
180 | ||
181 | static int | |
182 | ld_r_r (struct buffer *buf, disassemble_info * info, char *txt) | |
183 | { | |
184 | info->fprintf_func (info->stream, txt, | |
185 | r_str[(buf->data[buf->n_fetch - 1] >> 3) & 7], | |
186 | r_str[buf->data[buf->n_fetch - 1] & 7]); | |
187 | buf->n_used = buf->n_fetch; | |
188 | return buf->n_used; | |
189 | } | |
190 | ||
191 | static int | |
192 | arit_r (struct buffer *buf, disassemble_info * info, char *txt) | |
193 | { | |
194 | info->fprintf_func (info->stream, txt, | |
195 | arit_str[(buf->data[buf->n_fetch - 1] >> 3) & 7], | |
196 | r_str[buf->data[buf->n_fetch - 1] & 7]); | |
197 | buf->n_used = buf->n_fetch; | |
198 | return buf->n_used; | |
199 | } | |
200 | ||
201 | static int | |
202 | prt_cc (struct buffer *buf, disassemble_info * info, char *txt) | |
203 | { | |
204 | info->fprintf_func (info->stream, "%s%s", txt, | |
205 | cc_str[(buf->data[0] >> 3) & 7]); | |
206 | buf->n_used = buf->n_fetch; | |
207 | return buf->n_used; | |
208 | } | |
209 | ||
210 | static int | |
211 | pop_rr (struct buffer *buf, disassemble_info * info, char *txt) | |
212 | { | |
213 | static char *rr_stack[] = { "bc","de","hl","af"}; | |
214 | ||
215 | info->fprintf_func (info->stream, "%s %s", txt, | |
216 | rr_stack[(buf->data[0] >> 4) & 3]); | |
217 | buf->n_used = buf->n_fetch; | |
218 | return buf->n_used; | |
219 | } | |
220 | ||
221 | ||
222 | static int | |
223 | jp_cc_nn (struct buffer *buf, disassemble_info * info, char *txt) | |
224 | { | |
225 | char mytxt[TXTSIZ]; | |
226 | ||
227 | snprintf (mytxt,TXTSIZ, | |
228 | "%s%s,0x%%04x", txt, cc_str[(buf->data[0] >> 3) & 7]); | |
229 | return prt_nn (buf, info, mytxt); | |
230 | } | |
231 | ||
232 | static int | |
233 | arit_n (struct buffer *buf, disassemble_info * info, char *txt) | |
234 | { | |
235 | char mytxt[TXTSIZ]; | |
236 | ||
237 | snprintf (mytxt,TXTSIZ, txt, arit_str[(buf->data[0] >> 3) & 7]); | |
238 | return prt_n (buf, info, mytxt); | |
239 | } | |
240 | ||
241 | static int | |
242 | rst (struct buffer *buf, disassemble_info * info, char *txt) | |
243 | { | |
244 | info->fprintf_func (info->stream, txt, buf->data[0] & 0x38); | |
245 | buf->n_used = buf->n_fetch; | |
246 | return buf->n_used; | |
247 | } | |
248 | ||
249 | \f | |
250 | static int | |
251 | cis (struct buffer *buf, disassemble_info * info, char *txt ATTRIBUTE_UNUSED) | |
252 | { | |
253 | static char * opar[] = { "ld", "cp", "in", "out" }; | |
254 | char * op; | |
255 | char c; | |
256 | ||
257 | c = buf->data[1]; | |
258 | op = ((0x13 & c) == 0x13) ? "ot" : (opar[c & 3]); | |
259 | info->fprintf_func (info->stream, | |
260 | "%s%c%s", op, | |
261 | (c & 0x08) ? 'd' : 'i', | |
262 | (c & 0x10) ? "r" : ""); | |
263 | buf->n_used = 2; | |
264 | return buf->n_used; | |
265 | } | |
266 | ||
267 | static int | |
268 | dump (struct buffer *buf, disassemble_info * info, char *txt) | |
269 | { | |
270 | int i; | |
271 | ||
272 | info->fprintf_func (info->stream, "defb "); | |
273 | for (i = 0; txt[i]; ++i) | |
274 | info->fprintf_func (info->stream, i ? ", 0x%02x" : "0x%02x", | |
275 | (unsigned char) buf->data[i]); | |
276 | buf->n_used = i; | |
277 | return buf->n_used; | |
278 | } | |
279 | \f | |
280 | /* Table to disassemble machine codes with prefix 0xED. */ | |
281 | struct tab_elt opc_ed[] = | |
282 | { | |
283 | { 0x70, 0xFF, prt, "in f,(c)" }, | |
284 | { 0x70, 0xFF, dump, "xx" }, | |
285 | { 0x40, 0xC7, prt_r, "in %s,(c)" }, | |
286 | { 0x71, 0xFF, prt, "out (c),0" }, | |
287 | { 0x70, 0xFF, dump, "xx" }, | |
288 | { 0x41, 0xC7, prt_r, "out (c),%s" }, | |
289 | { 0x42, 0xCF, prt_rr, "sbc hl," }, | |
290 | { 0x43, 0xCF, prt_rr_nn, "ld (0x%%04x),%s" }, | |
291 | { 0x44, 0xFF, prt, "neg" }, | |
292 | { 0x45, 0xFF, prt, "retn" }, | |
293 | { 0x46, 0xFF, prt, "im 0" }, | |
294 | { 0x47, 0xFF, prt, "ld i,a" }, | |
295 | { 0x4A, 0xCF, prt_rr, "adc hl," }, | |
296 | { 0x4B, 0xCF, prt_rr_nn, "ld %s,(0x%%04x)" }, | |
297 | { 0x4D, 0xFF, prt, "reti" }, | |
298 | { 0x56, 0xFF, prt, "im 1" }, | |
299 | { 0x57, 0xFF, prt, "ld a,i" }, | |
300 | { 0x5E, 0xFF, prt, "im 2" }, | |
301 | { 0x67, 0xFF, prt, "rrd" }, | |
302 | { 0x6F, 0xFF, prt, "rld" }, | |
303 | { 0xA0, 0xE4, cis, "" }, | |
304 | { 0xC3, 0xFF, prt, "muluw hl,bc" }, | |
305 | { 0xC5, 0xE7, prt_r, "mulub a,%s" }, | |
306 | { 0xF3, 0xFF, prt, "muluw hl,sp" }, | |
307 | { 0x00, 0x00, dump, "xx" } | |
308 | }; | |
309 | ||
310 | static int | |
311 | pref_ed (struct buffer * buf, disassemble_info * info, | |
312 | char* txt ATTRIBUTE_UNUSED) | |
313 | { | |
314 | struct tab_elt *p; | |
315 | ||
316 | if (fetch_data(buf, info, 1)) | |
317 | { | |
318 | for (p = opc_ed; p->val != (buf->data[1] & p->mask); ++p) | |
319 | ; | |
320 | p->fp (buf, info, p->text); | |
321 | } | |
322 | else | |
323 | buf->n_used = -1; | |
324 | ||
325 | return buf->n_used; | |
326 | } | |
327 | \f | |
328 | /* Instruction names for the instructions addressing single bits. */ | |
329 | static char *cb1_str[] = { "", "bit", "res", "set"}; | |
330 | /* Instruction names for shifts and rotates. */ | |
331 | static char *cb2_str[] = | |
332 | { | |
333 | "rlc", "rrc", "rl", "rr", "sla", "sra", "sli", "srl" | |
334 | }; | |
335 | ||
336 | static int | |
337 | pref_cb (struct buffer * buf, disassemble_info * info, | |
338 | char* txt ATTRIBUTE_UNUSED) | |
339 | { | |
340 | if (fetch_data (buf, info, 1)) | |
341 | { | |
342 | buf->n_used = 2; | |
343 | if ((buf->data[1] & 0xc0) == 0) | |
344 | info->fprintf_func (info->stream, "%s %s", | |
345 | cb2_str[(buf->data[1] >> 3) & 7], | |
346 | r_str[buf->data[1] & 7]); | |
347 | else | |
348 | info->fprintf_func (info->stream, "%s %d,%s", | |
349 | cb1_str[(buf->data[1] >> 6) & 3], | |
350 | (buf->data[1] >> 3) & 7, | |
351 | r_str[buf->data[1] & 7]); | |
352 | } | |
353 | else | |
354 | buf->n_used = -1; | |
355 | ||
356 | return buf->n_used; | |
357 | } | |
358 | \f | |
359 | static int | |
360 | addvv (struct buffer * buf, disassemble_info * info, char* txt) | |
361 | { | |
362 | info->fprintf_func (info->stream, "add %s,%s", txt, txt); | |
363 | ||
364 | return buf->n_used = buf->n_fetch; | |
365 | } | |
366 | ||
367 | static int | |
368 | ld_v_v (struct buffer * buf, disassemble_info * info, char* txt) | |
369 | { | |
370 | char mytxt[TXTSIZ]; | |
371 | ||
372 | snprintf (mytxt, TXTSIZ, "ld %s%%s,%s%%s", txt, txt); | |
373 | return ld_r_r (buf, info, mytxt); | |
374 | } | |
375 | ||
376 | static int | |
377 | prt_d (struct buffer *buf, disassemble_info * info, char *txt) | |
378 | { | |
379 | int d; | |
9e919b5f | 380 | signed char *p; |
3c9b82ba | 381 | |
c9021189 | 382 | p = buf->data + buf->n_fetch; |
3c9b82ba NC |
383 | |
384 | if (fetch_data (buf, info, 1)) | |
385 | { | |
386 | d = p[0]; | |
387 | info->fprintf_func (info->stream, txt, d); | |
388 | buf->n_used = buf->n_fetch; | |
389 | } | |
390 | else | |
391 | buf->n_used = -1; | |
392 | ||
393 | return buf->n_used; | |
394 | } | |
395 | ||
396 | static int | |
397 | prt_d_n (struct buffer *buf, disassemble_info * info, char *txt) | |
398 | { | |
399 | char mytxt[TXTSIZ]; | |
400 | int d; | |
9e919b5f | 401 | signed char *p; |
3c9b82ba | 402 | |
c9021189 | 403 | p = buf->data + buf->n_fetch; |
3c9b82ba NC |
404 | |
405 | if (fetch_data (buf, info, 1)) | |
406 | { | |
407 | d = p[0]; | |
408 | snprintf (mytxt, TXTSIZ, txt, d); | |
409 | return prt_n (buf, info, mytxt); | |
410 | } | |
411 | else | |
412 | buf->n_used = -1; | |
413 | ||
414 | return buf->n_used; | |
415 | } | |
416 | ||
417 | static int | |
418 | arit_d (struct buffer *buf, disassemble_info * info, char *txt) | |
419 | { | |
420 | char mytxt[TXTSIZ]; | |
9e919b5f | 421 | signed char c; |
3c9b82ba NC |
422 | |
423 | c = buf->data[buf->n_fetch - 1]; | |
424 | snprintf (mytxt, TXTSIZ, txt, arit_str[(c >> 3) & 7]); | |
425 | return prt_d (buf, info, mytxt); | |
426 | } | |
427 | ||
428 | static int | |
429 | ld_r_d (struct buffer *buf, disassemble_info * info, char *txt) | |
430 | { | |
431 | char mytxt[TXTSIZ]; | |
9e919b5f | 432 | signed char c; |
3c9b82ba NC |
433 | |
434 | c = buf->data[buf->n_fetch - 1]; | |
435 | snprintf (mytxt, TXTSIZ, txt, r_str[(c >> 3) & 7]); | |
436 | return prt_d (buf, info, mytxt); | |
437 | } | |
438 | ||
439 | static int | |
440 | ld_d_r(struct buffer *buf, disassemble_info * info, char *txt) | |
441 | { | |
442 | char mytxt[TXTSIZ]; | |
9e919b5f | 443 | signed char c; |
3c9b82ba NC |
444 | |
445 | c = buf->data[buf->n_fetch - 1]; | |
446 | snprintf (mytxt, TXTSIZ, txt, r_str[c & 7]); | |
447 | return prt_d (buf, info, mytxt); | |
448 | } | |
449 | ||
450 | static int | |
451 | pref_xd_cb (struct buffer * buf, disassemble_info * info, char* txt) | |
452 | { | |
453 | if (fetch_data (buf, info, 2)) | |
454 | { | |
455 | int d; | |
456 | char arg[TXTSIZ]; | |
9e919b5f | 457 | signed char *p; |
3c9b82ba NC |
458 | |
459 | buf->n_used = 4; | |
460 | p = buf->data; | |
461 | d = p[2]; | |
462 | ||
463 | if (((p[3] & 0xC0) == 0x40) || ((p[3] & 7) == 0x06)) | |
9e919b5f | 464 | snprintf (arg, TXTSIZ, "(%s%+d)", txt, d); |
3c9b82ba | 465 | else |
9e919b5f | 466 | snprintf (arg, TXTSIZ, "(%s%+d),%s", txt, d, r_str[p[3] & 7]); |
3c9b82ba NC |
467 | |
468 | if ((p[3] & 0xc0) == 0) | |
469 | info->fprintf_func (info->stream, "%s %s", | |
470 | cb2_str[(buf->data[3] >> 3) & 7], | |
471 | arg); | |
472 | else | |
473 | info->fprintf_func (info->stream, "%s %d,%s", | |
474 | cb1_str[(buf->data[3] >> 6) & 3], | |
475 | (buf->data[3] >> 3) & 7, | |
476 | arg); | |
477 | } | |
478 | else | |
479 | buf->n_used = -1; | |
480 | ||
481 | return buf->n_used; | |
482 | } | |
483 | \f | |
484 | /* Table to disassemble machine codes with prefix 0xDD or 0xFD. */ | |
485 | static struct tab_elt opc_ind[] = | |
486 | { | |
487 | { 0x24, 0xF7, prt_r, "inc %s%%s" }, | |
488 | { 0x25, 0xF7, prt_r, "dec %s%%s" }, | |
489 | { 0x26, 0xF7, ld_r_n, "ld %s%%s,0x%%%%02x" }, | |
490 | { 0x21, 0xFF, prt_nn, "ld %s,0x%%04x" }, | |
491 | { 0x22, 0xFF, prt_nn, "ld (0x%%04x),%s" }, | |
492 | { 0x2A, 0xFF, prt_nn, "ld %s,(0x%%04x)" }, | |
493 | { 0x23, 0xFF, prt, "inc %s" }, | |
494 | { 0x2B, 0xFF, prt, "dec %s" }, | |
495 | { 0x29, 0xFF, addvv, "%s" }, | |
496 | { 0x09, 0xCF, prt_rr, "add %s," }, | |
9e919b5f AM |
497 | { 0x34, 0xFF, prt_d, "inc (%s%%+d)" }, |
498 | { 0x35, 0xFF, prt_d, "dec (%s%%+d)" }, | |
499 | { 0x36, 0xFF, prt_d_n, "ld (%s%%+d),0x%%%%02x" }, | |
3c9b82ba NC |
500 | |
501 | { 0x76, 0xFF, dump, "h" }, | |
9e919b5f AM |
502 | { 0x46, 0xC7, ld_r_d, "ld %%s,(%s%%%%+d)" }, |
503 | { 0x70, 0xF8, ld_d_r, "ld (%s%%%%+d),%%s" }, | |
3c9b82ba NC |
504 | { 0x64, 0xF6, ld_v_v, "%s" }, |
505 | { 0x60, 0xF0, ld_r_r, "ld %s%%s,%%s" }, | |
506 | { 0x44, 0xC6, ld_r_r, "ld %%s,%s%%s" }, | |
507 | ||
9e919b5f | 508 | { 0x86, 0xC7, arit_d, "%%s(%s%%%%+d)" }, |
3c9b82ba NC |
509 | { 0x84, 0xC6, arit_r, "%%s%s%%s" }, |
510 | ||
511 | { 0xE1, 0xFF, prt, "pop %s" }, | |
512 | { 0xE5, 0xFF, prt, "push %s" }, | |
513 | { 0xCB, 0xFF, pref_xd_cb, "%s" }, | |
514 | { 0xE3, 0xFF, prt, "ex (sp),%s" }, | |
515 | { 0xE9, 0xFF, prt, "jp (%s)" }, | |
516 | { 0xF9, 0xFF, prt, "ld sp,%s" }, | |
517 | { 0x00, 0x00, dump, "?" }, | |
518 | } ; | |
519 | ||
520 | static int | |
521 | pref_ind (struct buffer * buf, disassemble_info * info, char* txt) | |
522 | { | |
523 | if (fetch_data (buf, info, 1)) | |
524 | { | |
525 | char mytxt[TXTSIZ]; | |
526 | struct tab_elt *p; | |
527 | ||
528 | for (p = opc_ind; p->val != (buf->data[1] & p->mask); ++p) | |
529 | ; | |
530 | snprintf (mytxt, TXTSIZ, p->text, txt); | |
531 | p->fp (buf, info, mytxt); | |
532 | } | |
533 | else | |
534 | buf->n_used = -1; | |
535 | ||
536 | return buf->n_used; | |
537 | } | |
538 | ||
539 | /* Table to disassemble machine codes without prefix. */ | |
540 | static struct tab_elt opc_main[] = | |
541 | { | |
542 | { 0x00, 0xFF, prt, "nop" }, | |
543 | { 0x01, 0xCF, prt_rr_nn, "ld %s,0x%%04x" }, | |
544 | { 0x02, 0xFF, prt, "ld (bc),a" }, | |
545 | { 0x03, 0xCF, prt_rr, "inc " }, | |
546 | { 0x04, 0xC7, prt_r, "inc %s" }, | |
547 | { 0x05, 0xC7, prt_r, "dec %s" }, | |
548 | { 0x06, 0xC7, ld_r_n, "ld %s,0x%%02x" }, | |
549 | { 0x07, 0xFF, prt, "rlca" }, | |
550 | { 0x08, 0xFF, prt, "ex af,af'" }, | |
551 | { 0x09, 0xCF, prt_rr, "add hl," }, | |
552 | { 0x0A, 0xFF, prt, "ld a,(bc)" }, | |
553 | { 0x0B, 0xCF, prt_rr, "dec " }, | |
554 | { 0x0F, 0xFF, prt, "rrca" }, | |
555 | { 0x10, 0xFF, prt_e, "djnz " }, | |
556 | { 0x12, 0xFF, prt, "ld (de),a" }, | |
557 | { 0x17, 0xFF, prt, "rla" }, | |
558 | { 0x18, 0xFF, prt_e, "jr "}, | |
559 | { 0x1A, 0xFF, prt, "ld a,(de)" }, | |
560 | { 0x1F, 0xFF, prt, "rra" }, | |
561 | { 0x20, 0xE7, jr_cc, "jr %s,"}, | |
562 | { 0x22, 0xFF, prt_nn, "ld (0x%04x),hl" }, | |
563 | { 0x27, 0xFF, prt, "daa"}, | |
564 | { 0x2A, 0xFF, prt_nn, "ld hl,(0x%04x)" }, | |
565 | { 0x2F, 0xFF, prt, "cpl" }, | |
566 | { 0x32, 0xFF, prt_nn, "ld (0x%04x),a" }, | |
567 | { 0x37, 0xFF, prt, "scf" }, | |
568 | { 0x3A, 0xFF, prt_nn, "ld a,(0x%04x)" }, | |
569 | { 0x3F, 0xFF, prt, "ccf" }, | |
570 | ||
571 | { 0x76, 0xFF, prt, "halt" }, | |
572 | { 0x40, 0xC0, ld_r_r, "ld %s,%s"}, | |
573 | ||
574 | { 0x80, 0xC0, arit_r, "%s%s" }, | |
575 | ||
576 | { 0xC0, 0xC7, prt_cc, "ret " }, | |
577 | { 0xC1, 0xCF, pop_rr, "pop" }, | |
578 | { 0xC2, 0xC7, jp_cc_nn, "jp " }, | |
579 | { 0xC3, 0xFF, prt_nn, "jp 0x%04x" }, | |
580 | { 0xC4, 0xC7, jp_cc_nn, "call " }, | |
581 | { 0xC5, 0xCF, pop_rr, "push" }, | |
582 | { 0xC6, 0xC7, arit_n, "%s0x%%02x" }, | |
583 | { 0xC7, 0xC7, rst, "rst 0x%02x" }, | |
584 | { 0xC9, 0xFF, prt, "ret" }, | |
585 | { 0xCB, 0xFF, pref_cb, "" }, | |
586 | { 0xCD, 0xFF, prt_nn, "call 0x%04x" }, | |
587 | { 0xD3, 0xFF, prt_n, "out (0x%02x),a" }, | |
588 | { 0xD9, 0xFF, prt, "exx" }, | |
589 | { 0xDB, 0xFF, prt_n, "in a,(0x%02x)" }, | |
590 | { 0xDD, 0xFF, pref_ind, "ix" }, | |
591 | { 0xE3, 0xFF, prt, "ex (sp),hl" }, | |
592 | { 0xE9, 0xFF, prt, "jp (hl)" }, | |
593 | { 0xEB, 0xFF, prt, "ex de,hl" }, | |
594 | { 0xED, 0xFF, pref_ed, ""}, | |
595 | { 0xF3, 0xFF, prt, "di" }, | |
596 | { 0xF9, 0xFF, prt, "ld sp,hl" }, | |
597 | { 0xFB, 0xFF, prt, "ei" }, | |
598 | { 0xFD, 0xFF, pref_ind, "iy" }, | |
599 | { 0x00, 0x00, prt, "????" }, | |
600 | } ; | |
601 | ||
602 | int | |
603 | print_insn_z80 (bfd_vma addr, disassemble_info * info) | |
604 | { | |
605 | struct buffer buf; | |
606 | struct tab_elt *p; | |
607 | ||
608 | buf.base = addr; | |
609 | buf.n_fetch = 0; | |
610 | buf.n_used = 0; | |
611 | ||
612 | if (! fetch_data (& buf, info, 1)) | |
613 | return -1; | |
614 | ||
615 | for (p = opc_main; p->val != (buf.data[0] & p->mask); ++p) | |
616 | ; | |
617 | p->fp (& buf, info, p->text); | |
618 | ||
619 | return buf.n_used; | |
620 | } |