Commit | Line | Data |
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252b5132 | 1 | /* ppc-dis.c -- Disassemble PowerPC instructions |
081ba1b3 | 2 | Copyright 1994, 1995, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
aea77599 | 3 | 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Ian Lance Taylor, Cygnus Support |
5 | ||
9b201bb5 NC |
6 | This file is part of the GNU opcodes library. |
7 | ||
8 | This library is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3, or (at your option) | |
11 | any later version. | |
12 | ||
13 | It is distributed in the hope that it will be useful, but WITHOUT | |
14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
16 | License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this file; see the file COPYING. If not, write to the | |
20 | Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, | |
21 | MA 02110-1301, USA. */ | |
252b5132 RH |
22 | |
23 | #include <stdio.h> | |
252b5132 RH |
24 | #include "sysdep.h" |
25 | #include "dis-asm.h" | |
69fe9ce5 | 26 | #include "opintl.h" |
252b5132 RH |
27 | #include "opcode/ppc.h" |
28 | ||
29 | /* This file provides several disassembler functions, all of which use | |
30 | the disassembler interface defined in dis-asm.h. Several functions | |
31 | are provided because this file handles disassembly for the PowerPC | |
32 | in both big and little endian mode and also for the POWER (RS/6000) | |
33 | chip. */ | |
fa452fa6 PB |
34 | static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int, |
35 | ppc_cpu_t); | |
252b5132 | 36 | |
fa452fa6 PB |
37 | struct dis_private |
38 | { | |
39 | /* Stash the result of parsing disassembler_options here. */ | |
40 | ppc_cpu_t dialect; | |
b240011a | 41 | } private; |
fa452fa6 PB |
42 | |
43 | #define POWERPC_DIALECT(INFO) \ | |
44 | (((struct dis_private *) ((INFO)->private_data))->dialect) | |
418c1742 | 45 | |
69fe9ce5 AM |
46 | struct ppc_mopt { |
47 | const char *opt; | |
48 | ppc_cpu_t cpu; | |
49 | ppc_cpu_t sticky; | |
50 | }; | |
51 | ||
52 | struct ppc_mopt ppc_opts[] = { | |
bdc70b4a | 53 | { "403", (PPC_OPCODE_PPC | PPC_OPCODE_403), |
69fe9ce5 | 54 | 0 }, |
bdc70b4a | 55 | { "405", (PPC_OPCODE_PPC | PPC_OPCODE_403 | PPC_OPCODE_405), |
69fe9ce5 | 56 | 0 }, |
bdc70b4a AM |
57 | { "440", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_440 |
58 | | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI), | |
69fe9ce5 | 59 | 0 }, |
bdc70b4a AM |
60 | { "464", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_440 |
61 | | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI), | |
69fe9ce5 | 62 | 0 }, |
bdc70b4a AM |
63 | { "476", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_440 |
64 | | PPC_OPCODE_476 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5), | |
9fe54b1c | 65 | 0 }, |
bdc70b4a | 66 | { "601", (PPC_OPCODE_PPC | PPC_OPCODE_601), |
69fe9ce5 | 67 | 0 }, |
bdc70b4a | 68 | { "603", (PPC_OPCODE_PPC), |
69fe9ce5 | 69 | 0 }, |
bdc70b4a | 70 | { "604", (PPC_OPCODE_PPC), |
69fe9ce5 | 71 | 0 }, |
bdc70b4a | 72 | { "620", (PPC_OPCODE_PPC | PPC_OPCODE_64), |
69fe9ce5 | 73 | 0 }, |
bdc70b4a | 74 | { "7400", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC), |
69fe9ce5 | 75 | 0 }, |
bdc70b4a | 76 | { "7410", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC), |
69fe9ce5 | 77 | 0 }, |
bdc70b4a | 78 | { "7450", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC), |
69fe9ce5 | 79 | 0 }, |
bdc70b4a | 80 | { "7455", (PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC), |
69fe9ce5 AM |
81 | 0 }, |
82 | { "750cl", (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS) | |
83 | , 0 }, | |
bdc70b4a AM |
84 | { "a2", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_POWER4 |
85 | | PPC_OPCODE_POWER5 | PPC_OPCODE_CACHELCK | PPC_OPCODE_64 | |
86 | | PPC_OPCODE_A2), | |
cdc51b07 | 87 | 0 }, |
bdc70b4a | 88 | { "altivec", (PPC_OPCODE_PPC), |
69fe9ce5 AM |
89 | PPC_OPCODE_ALTIVEC }, |
90 | { "any", 0, | |
91 | PPC_OPCODE_ANY }, | |
bdc70b4a | 92 | { "booke", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE), |
69fe9ce5 | 93 | 0 }, |
bdc70b4a | 94 | { "booke32", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE), |
69fe9ce5 | 95 | 0 }, |
bdc70b4a AM |
96 | { "cell", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4 |
97 | | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC), | |
69fe9ce5 | 98 | 0 }, |
bdc70b4a | 99 | { "com", (PPC_OPCODE_COMMON), |
69fe9ce5 | 100 | 0 }, |
bdc70b4a | 101 | { "e300", (PPC_OPCODE_PPC | PPC_OPCODE_E300), |
69fe9ce5 AM |
102 | 0 }, |
103 | { "e500", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE | |
104 | | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK | |
105 | | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI | |
e01d869a | 106 | | PPC_OPCODE_E500), |
69fe9ce5 AM |
107 | 0 }, |
108 | { "e500mc", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL | |
109 | | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI | |
110 | | PPC_OPCODE_E500MC), | |
111 | 0 }, | |
0dc93057 AM |
112 | { "e500mc64", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL |
113 | | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI | |
63d0fa4e AM |
114 | | PPC_OPCODE_E500MC | PPC_OPCODE_64 | PPC_OPCODE_POWER5 |
115 | | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7), | |
0dc93057 | 116 | 0 }, |
aea77599 AM |
117 | { "e5500", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL |
118 | | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI | |
119 | | PPC_OPCODE_E500MC | PPC_OPCODE_64 | PPC_OPCODE_POWER4 | |
120 | | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | |
121 | | PPC_OPCODE_POWER7), | |
122 | 0 }, | |
123 | { "e6500", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL | |
124 | | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI | |
125 | | PPC_OPCODE_E500MC | PPC_OPCODE_64 | PPC_OPCODE_ALTIVEC | |
126 | | PPC_OPCODE_ALTIVEC2 | PPC_OPCODE_E6500 | PPC_OPCODE_POWER4 | |
127 | | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7), | |
128 | 0 }, | |
69fe9ce5 AM |
129 | { "e500x2", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE |
130 | | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK | |
131 | | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI | |
e01d869a | 132 | | PPC_OPCODE_E500), |
69fe9ce5 AM |
133 | 0 }, |
134 | { "efs", (PPC_OPCODE_PPC | PPC_OPCODE_EFS), | |
135 | 0 }, | |
bdc70b4a | 136 | { "power4", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4), |
69fe9ce5 | 137 | 0 }, |
bdc70b4a AM |
138 | { "power5", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4 |
139 | | PPC_OPCODE_POWER5), | |
69fe9ce5 | 140 | 0 }, |
bdc70b4a AM |
141 | { "power6", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4 |
142 | | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_ALTIVEC), | |
69fe9ce5 | 143 | 0 }, |
bdc70b4a AM |
144 | { "power7", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_64 |
145 | | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | |
146 | | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX), | |
69fe9ce5 | 147 | 0 }, |
bdc70b4a | 148 | { "ppc", (PPC_OPCODE_PPC), |
69fe9ce5 | 149 | 0 }, |
bdc70b4a | 150 | { "ppc32", (PPC_OPCODE_PPC), |
69fe9ce5 | 151 | 0 }, |
bdc70b4a | 152 | { "ppc64", (PPC_OPCODE_PPC | PPC_OPCODE_64), |
69fe9ce5 | 153 | 0 }, |
bdc70b4a | 154 | { "ppc64bridge", (PPC_OPCODE_PPC | PPC_OPCODE_64_BRIDGE), |
69fe9ce5 AM |
155 | 0 }, |
156 | { "ppcps", (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS), | |
157 | 0 }, | |
bdc70b4a | 158 | { "pwr", (PPC_OPCODE_POWER), |
69fe9ce5 | 159 | 0 }, |
bdc70b4a | 160 | { "pwr2", (PPC_OPCODE_POWER | PPC_OPCODE_POWER2), |
cdc51b07 | 161 | 0 }, |
bdc70b4a | 162 | { "pwr4", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4), |
cdc51b07 | 163 | 0 }, |
bdc70b4a AM |
164 | { "pwr5", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4 |
165 | | PPC_OPCODE_POWER5), | |
cdc51b07 | 166 | 0 }, |
bdc70b4a AM |
167 | { "pwr5x", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4 |
168 | | PPC_OPCODE_POWER5), | |
cdc51b07 | 169 | 0 }, |
bdc70b4a AM |
170 | { "pwr6", (PPC_OPCODE_PPC | PPC_OPCODE_64 | PPC_OPCODE_POWER4 |
171 | | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_ALTIVEC), | |
cdc51b07 | 172 | 0 }, |
bdc70b4a AM |
173 | { "pwr7", (PPC_OPCODE_PPC | PPC_OPCODE_ISEL | PPC_OPCODE_64 |
174 | | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | |
175 | | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX), | |
69fe9ce5 | 176 | 0 }, |
bdc70b4a | 177 | { "pwrx", (PPC_OPCODE_POWER | PPC_OPCODE_POWER2), |
69fe9ce5 AM |
178 | 0 }, |
179 | { "spe", (PPC_OPCODE_PPC | PPC_OPCODE_EFS), | |
180 | PPC_OPCODE_SPE }, | |
bdc70b4a AM |
181 | { "titan", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_PMR |
182 | | PPC_OPCODE_RFMCI | PPC_OPCODE_TITAN), | |
ce3d2015 | 183 | 0 }, |
bdc70b4a | 184 | { "vsx", (PPC_OPCODE_PPC), |
69fe9ce5 AM |
185 | PPC_OPCODE_VSX }, |
186 | }; | |
187 | ||
188 | /* Handle -m and -M options that set cpu type, and .machine arg. */ | |
189 | ||
190 | ppc_cpu_t | |
191 | ppc_parse_cpu (ppc_cpu_t ppc_cpu, const char *arg) | |
192 | { | |
193 | /* Sticky bits. */ | |
194 | ppc_cpu_t retain_flags = ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX | |
195 | | PPC_OPCODE_SPE | PPC_OPCODE_ANY); | |
196 | unsigned int i; | |
197 | ||
198 | for (i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++) | |
199 | if (strcmp (ppc_opts[i].opt, arg) == 0) | |
200 | { | |
201 | if (ppc_opts[i].sticky) | |
202 | { | |
203 | retain_flags |= ppc_opts[i].sticky; | |
7102e95e AS |
204 | if ((ppc_cpu & ~(ppc_cpu_t) (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX |
205 | | PPC_OPCODE_SPE | PPC_OPCODE_ANY)) != 0) | |
69fe9ce5 AM |
206 | break; |
207 | } | |
208 | ppc_cpu = ppc_opts[i].cpu; | |
209 | break; | |
210 | } | |
211 | if (i >= sizeof (ppc_opts) / sizeof (ppc_opts[0])) | |
212 | return 0; | |
213 | ||
214 | ppc_cpu |= retain_flags; | |
215 | return ppc_cpu; | |
216 | } | |
217 | ||
218 | /* Determine which set of machines to disassemble for. */ | |
418c1742 | 219 | |
b240011a | 220 | static void |
fa452fa6 | 221 | powerpc_init_dialect (struct disassemble_info *info) |
418c1742 | 222 | { |
69fe9ce5 AM |
223 | ppc_cpu_t dialect = 0; |
224 | char *arg; | |
fa452fa6 PB |
225 | struct dis_private *priv = calloc (sizeof (*priv), 1); |
226 | ||
227 | if (priv == NULL) | |
b240011a | 228 | priv = &private; |
418c1742 | 229 | |
69fe9ce5 AM |
230 | arg = info->disassembler_options; |
231 | while (arg != NULL) | |
232 | { | |
233 | ppc_cpu_t new_cpu = 0; | |
234 | char *end = strchr (arg, ','); | |
9b4e5766 | 235 | |
69fe9ce5 AM |
236 | if (end != NULL) |
237 | *end = 0; | |
9b4e5766 | 238 | |
69fe9ce5 AM |
239 | if ((new_cpu = ppc_parse_cpu (dialect, arg)) != 0) |
240 | dialect = new_cpu; | |
241 | else if (strcmp (arg, "32") == 0) | |
7102e95e | 242 | dialect &= ~(ppc_cpu_t) PPC_OPCODE_64; |
69fe9ce5 | 243 | else if (strcmp (arg, "64") == 0) |
bdc70b4a | 244 | dialect |= PPC_OPCODE_64; |
69fe9ce5 AM |
245 | else |
246 | fprintf (stderr, _("warning: ignoring unknown -M%s option\n"), arg); | |
9622b051 | 247 | |
69fe9ce5 AM |
248 | if (end != NULL) |
249 | *end++ = ','; | |
250 | arg = end; | |
251 | } | |
661bd698 | 252 | |
7102e95e | 253 | if ((dialect & ~(ppc_cpu_t) PPC_OPCODE_64) == 0) |
802a735e | 254 | { |
70dc4e32 PB |
255 | if (info->mach == bfd_mach_ppc64) |
256 | dialect |= PPC_OPCODE_64; | |
257 | else | |
7102e95e | 258 | dialect &= ~(ppc_cpu_t) PPC_OPCODE_64; |
69fe9ce5 | 259 | /* Choose a reasonable default. */ |
bdc70b4a AM |
260 | dialect |= (PPC_OPCODE_PPC | PPC_OPCODE_COMMON | PPC_OPCODE_601 |
261 | | PPC_OPCODE_ALTIVEC); | |
802a735e AM |
262 | } |
263 | ||
fa452fa6 PB |
264 | info->private_data = priv; |
265 | POWERPC_DIALECT(info) = dialect; | |
b240011a AM |
266 | } |
267 | ||
268 | #define PPC_OPCD_SEGS 64 | |
269 | #define PPC_OP_TO_SEG(i) (i) | |
270 | static unsigned short powerpc_opcd_indices[PPC_OPCD_SEGS]; | |
271 | ||
272 | /* Calculate opcode table indices to speed up disassembly, | |
273 | and init dialect. */ | |
274 | ||
275 | void | |
276 | disassemble_init_powerpc (struct disassemble_info *info) | |
277 | { | |
278 | int i; | |
279 | ||
280 | for (i = 0; i < PPC_OPCD_SEGS; ++i) | |
281 | powerpc_opcd_indices[i] = powerpc_num_opcodes; | |
fa452fa6 | 282 | |
b240011a AM |
283 | i = powerpc_num_opcodes; |
284 | while (--i >= 0) | |
285 | { | |
286 | unsigned op = PPC_OP (powerpc_opcodes[i].opcode); | |
287 | unsigned seg = PPC_OP_TO_SEG (op); | |
288 | ||
289 | powerpc_opcd_indices[seg] = i; | |
290 | } | |
291 | ||
292 | if (info->arch == bfd_arch_powerpc) | |
293 | powerpc_init_dialect (info); | |
418c1742 MG |
294 | } |
295 | ||
296 | /* Print a big endian PowerPC instruction. */ | |
252b5132 RH |
297 | |
298 | int | |
823bbe9d | 299 | print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info) |
252b5132 | 300 | { |
fa452fa6 | 301 | return print_insn_powerpc (memaddr, info, 1, POWERPC_DIALECT(info)); |
252b5132 RH |
302 | } |
303 | ||
418c1742 | 304 | /* Print a little endian PowerPC instruction. */ |
252b5132 RH |
305 | |
306 | int | |
823bbe9d | 307 | print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info) |
252b5132 | 308 | { |
fa452fa6 | 309 | return print_insn_powerpc (memaddr, info, 0, POWERPC_DIALECT(info)); |
252b5132 RH |
310 | } |
311 | ||
312 | /* Print a POWER (RS/6000) instruction. */ | |
313 | ||
314 | int | |
823bbe9d | 315 | print_insn_rs6000 (bfd_vma memaddr, struct disassemble_info *info) |
252b5132 RH |
316 | { |
317 | return print_insn_powerpc (memaddr, info, 1, PPC_OPCODE_POWER); | |
318 | } | |
319 | ||
ea192fa3 PB |
320 | /* Extract the operand value from the PowerPC or POWER instruction. */ |
321 | ||
322 | static long | |
323 | operand_value_powerpc (const struct powerpc_operand *operand, | |
fa452fa6 | 324 | unsigned long insn, ppc_cpu_t dialect) |
ea192fa3 PB |
325 | { |
326 | long value; | |
327 | int invalid; | |
328 | /* Extract the value from the instruction. */ | |
329 | if (operand->extract) | |
330 | value = (*operand->extract) (insn, dialect, &invalid); | |
331 | else | |
332 | { | |
333 | value = (insn >> operand->shift) & operand->bitm; | |
334 | if ((operand->flags & PPC_OPERAND_SIGNED) != 0) | |
335 | { | |
336 | /* BITM is always some number of zeros followed by some | |
337 | number of ones, followed by some numer of zeros. */ | |
338 | unsigned long top = operand->bitm; | |
339 | /* top & -top gives the rightmost 1 bit, so this | |
340 | fills in any trailing zeros. */ | |
341 | top |= (top & -top) - 1; | |
342 | top &= ~(top >> 1); | |
343 | value = (value ^ top) - top; | |
344 | } | |
345 | } | |
346 | ||
347 | return value; | |
348 | } | |
349 | ||
350 | /* Determine whether the optional operand(s) should be printed. */ | |
351 | ||
352 | static int | |
353 | skip_optional_operands (const unsigned char *opindex, | |
fa452fa6 | 354 | unsigned long insn, ppc_cpu_t dialect) |
ea192fa3 PB |
355 | { |
356 | const struct powerpc_operand *operand; | |
357 | ||
358 | for (; *opindex != 0; opindex++) | |
359 | { | |
360 | operand = &powerpc_operands[*opindex]; | |
361 | if ((operand->flags & PPC_OPERAND_NEXT) != 0 | |
362 | || ((operand->flags & PPC_OPERAND_OPTIONAL) != 0 | |
363 | && operand_value_powerpc (operand, insn, dialect) != 0)) | |
364 | return 0; | |
365 | } | |
366 | ||
367 | return 1; | |
368 | } | |
369 | ||
252b5132 RH |
370 | /* Print a PowerPC or POWER instruction. */ |
371 | ||
372 | static int | |
823bbe9d AM |
373 | print_insn_powerpc (bfd_vma memaddr, |
374 | struct disassemble_info *info, | |
375 | int bigendian, | |
fa452fa6 | 376 | ppc_cpu_t dialect) |
252b5132 RH |
377 | { |
378 | bfd_byte buffer[4]; | |
379 | int status; | |
380 | unsigned long insn; | |
381 | const struct powerpc_opcode *opcode; | |
382 | const struct powerpc_opcode *opcode_end; | |
383 | unsigned long op; | |
384 | ||
385 | status = (*info->read_memory_func) (memaddr, buffer, 4, info); | |
386 | if (status != 0) | |
387 | { | |
388 | (*info->memory_error_func) (status, memaddr, info); | |
389 | return -1; | |
390 | } | |
391 | ||
392 | if (bigendian) | |
393 | insn = bfd_getb32 (buffer); | |
394 | else | |
395 | insn = bfd_getl32 (buffer); | |
396 | ||
397 | /* Get the major opcode of the instruction. */ | |
398 | op = PPC_OP (insn); | |
399 | ||
b240011a AM |
400 | /* Find the first match in the opcode table. |
401 | We speed this up by segmenting the opcode table and starting the search | |
402 | at one of the segment boundaries. */ | |
252b5132 | 403 | opcode_end = powerpc_opcodes + powerpc_num_opcodes; |
661bd698 | 404 | again: |
b240011a AM |
405 | for (opcode = powerpc_opcodes + powerpc_opcd_indices[PPC_OP_TO_SEG (op)]; |
406 | opcode < opcode_end; | |
407 | ++opcode) | |
252b5132 RH |
408 | { |
409 | unsigned long table_op; | |
410 | const unsigned char *opindex; | |
411 | const struct powerpc_operand *operand; | |
412 | int invalid; | |
413 | int need_comma; | |
414 | int need_paren; | |
ea192fa3 | 415 | int skip_optional; |
252b5132 RH |
416 | |
417 | table_op = PPC_OP (opcode->opcode); | |
252b5132 RH |
418 | if (op > table_op) |
419 | continue; | |
b240011a AM |
420 | if (op < table_op) |
421 | break; | |
252b5132 RH |
422 | |
423 | if ((insn & opcode->mask) != opcode->opcode | |
21169fcf | 424 | || (opcode->flags & dialect) == 0 |
8ebac3aa AM |
425 | || (dialect != ~(ppc_cpu_t) PPC_OPCODE_ANY |
426 | && (opcode->deprecated & dialect) != 0)) | |
252b5132 RH |
427 | continue; |
428 | ||
429 | /* Make two passes over the operands. First see if any of them | |
430 | have extraction functions, and, if they do, make sure the | |
431 | instruction is valid. */ | |
432 | invalid = 0; | |
433 | for (opindex = opcode->operands; *opindex != 0; opindex++) | |
434 | { | |
435 | operand = powerpc_operands + *opindex; | |
436 | if (operand->extract) | |
802a735e | 437 | (*operand->extract) (insn, dialect, &invalid); |
252b5132 RH |
438 | } |
439 | if (invalid) | |
440 | continue; | |
441 | ||
442 | /* The instruction is valid. */ | |
252b5132 | 443 | if (opcode->operands[0] != 0) |
fdd12ef3 AM |
444 | (*info->fprintf_func) (info->stream, "%-7s ", opcode->name); |
445 | else | |
446 | (*info->fprintf_func) (info->stream, "%s", opcode->name); | |
252b5132 RH |
447 | |
448 | /* Now extract and print the operands. */ | |
449 | need_comma = 0; | |
450 | need_paren = 0; | |
ea192fa3 | 451 | skip_optional = -1; |
252b5132 RH |
452 | for (opindex = opcode->operands; *opindex != 0; opindex++) |
453 | { | |
454 | long value; | |
455 | ||
456 | operand = powerpc_operands + *opindex; | |
457 | ||
458 | /* Operands that are marked FAKE are simply ignored. We | |
459 | already made sure that the extract function considered | |
460 | the instruction to be valid. */ | |
461 | if ((operand->flags & PPC_OPERAND_FAKE) != 0) | |
462 | continue; | |
463 | ||
ea192fa3 PB |
464 | /* If all of the optional operands have the value zero, |
465 | then don't print any of them. */ | |
65b650b4 AM |
466 | if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0) |
467 | { | |
468 | if (skip_optional < 0) | |
469 | skip_optional = skip_optional_operands (opindex, insn, | |
470 | dialect); | |
471 | if (skip_optional) | |
472 | continue; | |
473 | } | |
252b5132 | 474 | |
ea192fa3 PB |
475 | value = operand_value_powerpc (operand, insn, dialect); |
476 | ||
252b5132 RH |
477 | if (need_comma) |
478 | { | |
479 | (*info->fprintf_func) (info->stream, ","); | |
480 | need_comma = 0; | |
481 | } | |
482 | ||
483 | /* Print the operand as directed by the flags. */ | |
fdd12ef3 AM |
484 | if ((operand->flags & PPC_OPERAND_GPR) != 0 |
485 | || ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0)) | |
252b5132 RH |
486 | (*info->fprintf_func) (info->stream, "r%ld", value); |
487 | else if ((operand->flags & PPC_OPERAND_FPR) != 0) | |
488 | (*info->fprintf_func) (info->stream, "f%ld", value); | |
786e2c0f C |
489 | else if ((operand->flags & PPC_OPERAND_VR) != 0) |
490 | (*info->fprintf_func) (info->stream, "v%ld", value); | |
9b4e5766 PB |
491 | else if ((operand->flags & PPC_OPERAND_VSR) != 0) |
492 | (*info->fprintf_func) (info->stream, "vs%ld", value); | |
252b5132 RH |
493 | else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0) |
494 | (*info->print_address_func) (memaddr + value, info); | |
495 | else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0) | |
496 | (*info->print_address_func) ((bfd_vma) value & 0xffffffff, info); | |
081ba1b3 AM |
497 | else if ((operand->flags & PPC_OPERAND_FSL) != 0) |
498 | (*info->fprintf_func) (info->stream, "fsl%ld", value); | |
499 | else if ((operand->flags & PPC_OPERAND_FCR) != 0) | |
500 | (*info->fprintf_func) (info->stream, "fcr%ld", value); | |
501 | else if ((operand->flags & PPC_OPERAND_UDI) != 0) | |
502 | (*info->fprintf_func) (info->stream, "%ld", value); | |
70dc4e32 PB |
503 | else if ((operand->flags & PPC_OPERAND_CR) != 0 |
504 | && (dialect & PPC_OPCODE_PPC) != 0) | |
252b5132 | 505 | { |
b84bf58a | 506 | if (operand->bitm == 7) |
0fd3a477 | 507 | (*info->fprintf_func) (info->stream, "cr%ld", value); |
252b5132 RH |
508 | else |
509 | { | |
510 | static const char *cbnames[4] = { "lt", "gt", "eq", "so" }; | |
511 | int cr; | |
512 | int cc; | |
513 | ||
514 | cr = value >> 2; | |
515 | if (cr != 0) | |
8b4fa155 | 516 | (*info->fprintf_func) (info->stream, "4*cr%d+", cr); |
252b5132 | 517 | cc = value & 3; |
8b4fa155 | 518 | (*info->fprintf_func) (info->stream, "%s", cbnames[cc]); |
252b5132 RH |
519 | } |
520 | } | |
70dc4e32 PB |
521 | else |
522 | (*info->fprintf_func) (info->stream, "%ld", value); | |
252b5132 RH |
523 | |
524 | if (need_paren) | |
525 | { | |
526 | (*info->fprintf_func) (info->stream, ")"); | |
527 | need_paren = 0; | |
528 | } | |
529 | ||
530 | if ((operand->flags & PPC_OPERAND_PARENS) == 0) | |
531 | need_comma = 1; | |
532 | else | |
533 | { | |
534 | (*info->fprintf_func) (info->stream, "("); | |
535 | need_paren = 1; | |
536 | } | |
537 | } | |
538 | ||
539 | /* We have found and printed an instruction; return. */ | |
540 | return 4; | |
541 | } | |
542 | ||
661bd698 AM |
543 | if ((dialect & PPC_OPCODE_ANY) != 0) |
544 | { | |
7102e95e | 545 | dialect = ~(ppc_cpu_t) PPC_OPCODE_ANY; |
661bd698 AM |
546 | goto again; |
547 | } | |
548 | ||
252b5132 RH |
549 | /* We could not find a match. */ |
550 | (*info->fprintf_func) (info->stream, ".long 0x%lx", insn); | |
551 | ||
552 | return 4; | |
553 | } | |
07dd56a9 NC |
554 | |
555 | void | |
823bbe9d | 556 | print_ppc_disassembler_options (FILE *stream) |
07dd56a9 | 557 | { |
69fe9ce5 AM |
558 | unsigned int i, col; |
559 | ||
560 | fprintf (stream, _("\n\ | |
07dd56a9 | 561 | The following PPC specific disassembler options are supported for use with\n\ |
69fe9ce5 AM |
562 | the -M switch:\n")); |
563 | ||
564 | for (col = 0, i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++) | |
565 | { | |
566 | col += fprintf (stream, " %s,", ppc_opts[i].opt); | |
567 | if (col > 66) | |
568 | { | |
569 | fprintf (stream, "\n"); | |
570 | col = 0; | |
571 | } | |
572 | } | |
573 | fprintf (stream, " 32, 64\n"); | |
07dd56a9 | 574 | } |