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* Makefile.in (VERSION): Bump to 4.5.6.
[deliverable/binutils-gdb.git] / gdb / hppa-pinsn.c
CommitLineData
7da1e27d
SG		 1/* Disassembler for the PA-RISC. Somewhat derived from sparc-pinsn.c.
2 Copyright (C) 1989, 1990 Free Software Foundation, Inc.
3
4 Contributed by the Center for Software Science at the
5 University of Utah (pa-gdb-bugs@cs.utah.edu).
6
7This file is part of GDB, the GNU disassembler.
8
9GDB is free software; you can redistribute it and/or modify
10it under the terms of the GNU General Public License as published by
11the Free Software Foundation; either version 1, or (at your option)
12any later version.
13
14GDB is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
20along with GDB; see the file COPYING. If not, write to
21the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
22
23#include <stdio.h>
24
25#include "defs.h"
26#include "symtab.h"
27#include "opcode/hppa.h"
28
29char *control_reg[] = {"rctr", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
30 "pidr1", "pidr2", "ccr", "sar", "pidr3", "pidr4",
31 "iva", "eiem", "itmr", "pcsq", "pcoq", "iir", "isr",
32 "ior", "ipsw", "eirr", "tr0", "tr1", "tr2", "tr3",
33 "tr4", "tr5", "tr6", "tr7"
34 };
35
36char *compare_cond_names[] = {"", ",=", ",<", ",<=", ",<<", ",<<=", ",sv",
37 ",od", ",tr", ",<>", ",>=", ",>", ",>>=",
38 ",>>", ",nsv", ",ev"
39 };
40char *add_cond_names[] = {"", ",=", ",<", ",<=", ",nuv", ",znv", ",sv",
41 ",od", ",tr", ",<>", ",>=", ",>", ",uv",
42 ",vnz", ",nsv", ",ev"
43 };
44char *logical_cond_names[] = {"", ",=", ",<", ",<=", 0, 0, 0, ",od",
45 ",tr", ",<>", ",>=", ",>", 0, 0, 0, ",ev"};
46char *unit_cond_names[] = {"", 0, ",sbz", ",shz", ",sdc", 0, ",sbc", ",shc",
47 ",tr", 0, ",nbz", ",nhz", ",ndc", 0, ",nbc", ",nhc"
48 };
49char *shift_cond_names[] = {"", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"};
50
51char *index_compl_names[] = {"", ",m", ",s", ",sm"};
52char *short_ldst_compl_names[] = {"", ",ma", "", ",mb"};
53char *short_bytes_compl_names[] = {"", ",b,m", ",e", ",e,m"};
54char *float_format_names[] = {",sgl", ",dbl", ",quad"};
55char *float_comp_names[] =
56{",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
57 ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
58 ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
59 ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
60 };
61
62/* For a bunch of different instructions form an index into a
63 completer name table. */
64#define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
65 GET_FIELD (insn, 18, 18) << 1)
66
67#define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
68 (GET_FIELD ((insn), 19, 19) ? 8 : 0))
69
70void fput_reg (), fput_const ();
71
72/* Print one instruction from MEMADDR on STREAM. */
73int
74print_insn (memaddr, stream)
75 CORE_ADDR memaddr;
76 FILE *stream;
77{
78 unsigned int insn, i, op;
79
80 read_memory (memaddr, &insn, sizeof (insn));
81
82 for (i = 0; i < NUMOPCODES; ++i)
83 {
84 const struct pa_opcode *opcode = &pa_opcodes[i];
85 if ((insn & opcode->mask) == opcode->match)
86 {
87 register const char *s;
88
89 fputs_filtered (opcode->name, stream);
90
91 if (!index ("cCY<?!@-+&U>~nZFM", opcode->args[0]))
92 fputs_filtered (" ", stream);
93 for (s = opcode->args; *s != '\0'; ++s)
94 {
95 switch (*s)
96 {
97 case 'x':
98 fput_reg (GET_FIELD (insn, 11, 15), stream);
99 break;
100 case 'X':
101 if (GET_FIELD (insn, 25, 25))
102 fput_reg_r (GET_FIELD (insn, 11, 15), stream);
103 else
104 fput_reg (GET_FIELD (insn, 11, 15), stream);
105 break;
106 case 'b':
107 fput_reg (GET_FIELD (insn, 6, 10), stream);
108 break;
109 case '^':
110 fput_creg (GET_FIELD (insn, 6, 10), stream);
111 break;
112 case 'E':
113 if (GET_FIELD (insn, 25, 25))
114 fput_reg_r (GET_FIELD (insn, 6, 10), stream);
115 else
116 fput_reg (GET_FIELD (insn, 6, 10), stream);
117 break;
118 case 't':
119 fput_reg (GET_FIELD (insn, 27, 31), stream);
120 break;
121 case 'v':
122 if (GET_FIELD (insn, 25, 25))
123 fput_reg_r (GET_FIELD (insn, 27, 31), stream);
124 else
125 fput_reg (GET_FIELD (insn, 27, 31), stream);
126 break;
127 case '4':
128 fput_creg (GET_FIELD (insn, 6, 10), stream);
129 break;
130 case '6':
131 fput_reg (GET_FIELD (insn, 11, 15), stream);
132 break;
133 case '7':
134 fput_reg (GET_FIELD (insn, 27, 31), stream);
135 break;
136 case '8':
137 fput_reg (GET_FIELD (insn, 16, 20), stream);
138 break;
139 case '9':
140 fput_reg (GET_FIELD (insn, 21, 25), stream);
141 break;
142 case '5':
143 fput_const (extract_5_load (insn), stream);
144 break;
145 /* case 's': */
146 case 'S':
147 fprintf_filtered (stream, "sr%d", extract_3 (insn));
148 break;
149 case 'c':
150 fprintf_filtered (stream, "%s ",
151 index_compl_names[GET_COMPL (insn)]);
152 break;
153 case 'C':
154 fprintf_filtered (stream, "%s ",
155 short_ldst_compl_names[GET_COMPL (insn)]);
156 break;
157 case 'Y':
158 fprintf_filtered (stream, "%s ",
159 short_bytes_compl_names[GET_COMPL (insn)]);
160 break;
161 /* these four conditions are for the set of instructions
162 which distinguish true/false conditions by opcode rather
163 than by the 'f' bit (sigh): comb, comib, addb, addib */
164 case '<':
165 fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)],
166 stream);
167 break;
168 case '?':
169 fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18) + 8],
170 stream);
171 break;
172 case '!':
173 fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18)],
174 stream);
175 break;
176 case '@':
177 fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18) + 8],
178 stream);
179 break;
180 case '-':
181 fprintf_filtered (stream, "%s ",
182 compare_cond_names[GET_COND (insn)]);
183 break;
184 case '+':
185 fprintf_filtered (stream, "%s ",
186 add_cond_names[GET_FIELD (insn, 16, 18)]);
187 break;
188
189 case '&':
190 fprintf_filtered (stream, "%s ",
191 logical_cond_names[GET_COND (insn)]);
192 break;
193 case 'U':
194 fprintf_filtered (stream, "%s ",
195 unit_cond_names[GET_COND (insn)]);
196 break;
197 case '>':
198 case '~':
199 fprintf_filtered (stream, "%s ",
200 shift_cond_names[GET_FIELD (insn, 16, 18)]);
201 break;
202 case 'V':
203 fput_const (extract_5_store (insn), stream);
204 break;
205 case 'i':
206 fput_const (extract_11 (insn), stream);
207 break;
208 case 'j':
209 fput_const (extract_14 (insn), stream);
210 break;
211 case 'k':
212 fput_const (extract_21 (insn), stream);
213 break;
214 case 'n':
215 if (insn & 0x2)
216 fprintf_filtered (stream, ",n ");
217 else
218 fprintf_filtered (stream, " ");
219 break;
220 case 'w':
221 print_address (memaddr + 8 + extract_12 (insn), stream);
222 break;
223 case 'W':
224 /* don't interpret an address if it's an external branch
225 instruction. */
226 op = GET_FIELD (insn, 0, 5);
227 if (op != 0x38 /* be */ && op != 0x39 /* ble */)
228 print_address (memaddr + 8 + extract_17 (insn), stream);
229 else
230 fput_const (extract_17 (insn), stream);
231 break;
232 case 'B':
233 {
234 int space;
235 if (space = GET_FIELD (insn, 16, 17))
236 fprintf_filtered (stream, "sr%d,", space);
237 fput_reg (GET_FIELD (insn, 6, 10), stream);
238 break;
239 }
240 case 'p':
241 fprintf_filtered (stream, "%d",
242 31 - GET_FIELD (insn, 22, 26));
243 break;
244 case 'P':
245 fprintf_filtered (stream, "%d",
246 GET_FIELD (insn, 22, 26));
247 break;
248 case 'T':
249 fprintf_filtered (stream, "%d",
250 32 - GET_FIELD (insn, 27, 31));
251 break;
252 case 'A':
253 fput_const (GET_FIELD (insn, 6, 18), stream);
254 break;
255 case 'Z':
256 if (GET_FIELD (insn, 26, 26))
257 fprintf_filtered (stream, ",m ");
258 else
259 fprintf_filtered (stream, " ");
260 break;
261 case 'D':
262 fput_const (GET_FIELD (insn, 6, 31), stream);
263 break;
264 case 'f':
265 fprintf_filtered (stream, ",%d", GET_FIELD (insn, 23, 25));
266 break;
267 case 'O':
268 fput_const ((GET_FIELD (insn, 6,20) << 5 |
269 GET_FIELD (insn, 27, 31)), stream);
270 break;
271 case 'o':
272 fput_const (GET_FIELD (insn, 6, 20), stream);
273 break;
274 case '2':
275 fput_const ((GET_FIELD (insn, 6, 22) << 5 |
276 GET_FIELD (insn, 27, 31)), stream);
277 break;
278 case '1':
279 fput_const ((GET_FIELD (insn, 11, 20) << 5 |
280 GET_FIELD (insn, 27, 31)), stream);
281 break;
282 case '0':
283 fput_const ((GET_FIELD (insn, 16, 20) << 5 |
284 GET_FIELD (insn, 27, 31)), stream);
285 break;
286 case 'u':
287 fprintf_filtered (stream, "%d", GET_FIELD (insn, 23, 25));
288 break;
289 case 'F':
290 /* if no destination completer, need a space here */
291 if (GET_FIELD (insn, 21, 22) == 1)
292 fputs_filtered (float_format_names[GET_FIELD (insn, 19, 20)],
293 stream);
294 else
295 fprintf_filtered (stream, "%s ",
296 float_format_names[GET_FIELD
297 (insn, 19, 20)]);
298 break;
299 case 'G':
300 fprintf_filtered (stream, "%s ",
301 float_format_names[GET_FIELD (insn,
302 17, 18)]);
303 break;
304 case 'H':
305 fputs_filtered (float_format_names[GET_FIELD
306 (insn, 26, 26)], stream);
307 break;
308 case 'M':
309 fputs_filtered (float_comp_names[GET_FIELD (insn, 27, 31)],
310 stream);
311 break;
312 case '}':
313 fprintf_filtered (stream, "fp%d", GET_FIELD (insn, 6, 10));
314 break;
315 case '|':
316 fprintf_filtered (stream, "fp%d", GET_FIELD (insn, 11, 15));
317 break;
318 case '{':
319 if (GET_FIELD (insn, 23, 25) == 0)
320 fprintf_filtered (stream, "fp%d",
321 GET_FIELD (insn, 27, 31));
322 else
323 fprintf_filtered (stream, "cp%d",
324 GET_FIELD (insn, 27, 31));
325 break;
326 default:
327 fprintf_filtered (stream, "%c", *s);
328 break;
329 }
330 }
331 return sizeof(insn);
332 }
333 }
334 fprintf_filtered (stream, "%#8x", insn);
335 return sizeof(insn);
336}
337
338/* Utility function to print registers */
339
340void
341fput_reg (reg, stream)
342 unsigned reg;
343 FILE *stream;
344{
345 if (reg)
346 fputs_filtered (reg_names[reg], stream);
347 else
348 fputs_filtered ("r0", stream);
349}
350
351void
352fput_reg_r (reg, stream)
353 unsigned reg;
354 FILE *stream;
355{
356 if (reg)
357 fputs_filtered (reg_names[reg], stream);
358 else
359 fputs_filtered ("r0", stream);
360 fputs_filtered ("R", stream);
361}
362
363void
364fput_creg (reg, stream)
365 unsigned reg;
366 FILE *stream;
367{
368 fputs_filtered (control_reg[reg], stream);
369}
370
371/* print constants with sign */
372
373void
374fput_const (num, stream)
375 unsigned num;
376 FILE *stream;
377{
378 if ((int)num < 0)
379 fprintf_filtered (stream, "-%x", -(int)num);
380 else
381 fprintf_filtered (stream, "%x", num);
382}
GDB Binutils - Deliverables
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