1 /* Print mips instructions for GDB, the GNU debugger, or for objdump.
2 Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2005, 2007
4 Free Software Foundation, Inc.
5 Contributed by Nobuyuki Hikichi(hikichi@sra.co.jp).
7 This file is part of the GNU opcodes library.
9 This library is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 It is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
17 License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
26 #include "libiberty.h"
27 #include "opcode/mips.h"
30 /* FIXME: These are needed to figure out if the code is mips16 or
31 not. The low bit of the address is often a good indicator. No
32 symbol table is available when this code runs out in an embedded
33 system as when it is used for disassembler support in a monitor. */
35 #if !defined(EMBEDDED_ENV)
36 #define SYMTAB_AVAILABLE 1
41 /* Mips instructions are at maximum this many bytes long. */
45 /* FIXME: These should be shared with gdb somehow. */
47 struct mips_cp0sel_name
51 const char * const name;
54 /* The mips16 registers. */
55 static const unsigned int mips16_to_32_reg_map[] =
57 16, 17, 2, 3, 4, 5, 6, 7
60 #define mips16_reg_names(rn) mips_gpr_names[mips16_to_32_reg_map[rn]]
63 static const char * const mips_gpr_names_numeric[32] =
65 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
66 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
67 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
68 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
71 static const char * const mips_gpr_names_oldabi[32] =
73 "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
74 "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
75 "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
76 "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
79 static const char * const mips_gpr_names_newabi[32] =
81 "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
82 "a4", "a5", "a6", "a7", "t0", "t1", "t2", "t3",
83 "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
84 "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
87 static const char * const mips_fpr_names_numeric[32] =
89 "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7",
90 "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15",
91 "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23",
92 "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31"
95 static const char * const mips_fpr_names_32[32] =
97 "fv0", "fv0f", "fv1", "fv1f", "ft0", "ft0f", "ft1", "ft1f",
98 "ft2", "ft2f", "ft3", "ft3f", "fa0", "fa0f", "fa1", "fa1f",
99 "ft4", "ft4f", "ft5", "ft5f", "fs0", "fs0f", "fs1", "fs1f",
100 "fs2", "fs2f", "fs3", "fs3f", "fs4", "fs4f", "fs5", "fs5f"
103 static const char * const mips_fpr_names_n32[32] =
105 "fv0", "ft14", "fv1", "ft15", "ft0", "ft1", "ft2", "ft3",
106 "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3",
107 "fa4", "fa5", "fa6", "fa7", "fs0", "ft8", "fs1", "ft9",
108 "fs2", "ft10", "fs3", "ft11", "fs4", "ft12", "fs5", "ft13"
111 static const char * const mips_fpr_names_64[32] =
113 "fv0", "ft12", "fv1", "ft13", "ft0", "ft1", "ft2", "ft3",
114 "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3",
115 "fa4", "fa5", "fa6", "fa7", "ft8", "ft9", "ft10", "ft11",
116 "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7"
119 static const char * const mips_cp0_names_numeric[32] =
121 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
122 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
123 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
124 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
127 static const char * const mips_cp0_names_r3000[32] =
129 "c0_index", "c0_random", "c0_entrylo", "$3",
130 "c0_context", "$5", "$6", "$7",
131 "c0_badvaddr", "$9", "c0_entryhi", "$11",
132 "c0_sr", "c0_cause", "c0_epc", "c0_prid",
133 "$16", "$17", "$18", "$19",
134 "$20", "$21", "$22", "$23",
135 "$24", "$25", "$26", "$27",
136 "$28", "$29", "$30", "$31",
139 static const char * const mips_cp0_names_r4000[32] =
141 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
142 "c0_context", "c0_pagemask", "c0_wired", "$7",
143 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
144 "c0_sr", "c0_cause", "c0_epc", "c0_prid",
145 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
146 "c0_xcontext", "$21", "$22", "$23",
147 "$24", "$25", "c0_ecc", "c0_cacheerr",
148 "c0_taglo", "c0_taghi", "c0_errorepc", "$31",
151 static const char * const mips_cp0_names_mips3264[32] =
153 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
154 "c0_context", "c0_pagemask", "c0_wired", "$7",
155 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
156 "c0_status", "c0_cause", "c0_epc", "c0_prid",
157 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
158 "c0_xcontext", "$21", "$22", "c0_debug",
159 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr",
160 "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave",
163 static const struct mips_cp0sel_name mips_cp0sel_names_mips3264[] =
165 { 16, 1, "c0_config1" },
166 { 16, 2, "c0_config2" },
167 { 16, 3, "c0_config3" },
168 { 18, 1, "c0_watchlo,1" },
169 { 18, 2, "c0_watchlo,2" },
170 { 18, 3, "c0_watchlo,3" },
171 { 18, 4, "c0_watchlo,4" },
172 { 18, 5, "c0_watchlo,5" },
173 { 18, 6, "c0_watchlo,6" },
174 { 18, 7, "c0_watchlo,7" },
175 { 19, 1, "c0_watchhi,1" },
176 { 19, 2, "c0_watchhi,2" },
177 { 19, 3, "c0_watchhi,3" },
178 { 19, 4, "c0_watchhi,4" },
179 { 19, 5, "c0_watchhi,5" },
180 { 19, 6, "c0_watchhi,6" },
181 { 19, 7, "c0_watchhi,7" },
182 { 25, 1, "c0_perfcnt,1" },
183 { 25, 2, "c0_perfcnt,2" },
184 { 25, 3, "c0_perfcnt,3" },
185 { 25, 4, "c0_perfcnt,4" },
186 { 25, 5, "c0_perfcnt,5" },
187 { 25, 6, "c0_perfcnt,6" },
188 { 25, 7, "c0_perfcnt,7" },
189 { 27, 1, "c0_cacheerr,1" },
190 { 27, 2, "c0_cacheerr,2" },
191 { 27, 3, "c0_cacheerr,3" },
192 { 28, 1, "c0_datalo" },
193 { 29, 1, "c0_datahi" }
196 static const char * const mips_cp0_names_mips3264r2[32] =
198 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
199 "c0_context", "c0_pagemask", "c0_wired", "c0_hwrena",
200 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
201 "c0_status", "c0_cause", "c0_epc", "c0_prid",
202 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
203 "c0_xcontext", "$21", "$22", "c0_debug",
204 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr",
205 "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave",
208 static const struct mips_cp0sel_name mips_cp0sel_names_mips3264r2[] =
210 { 4, 1, "c0_contextconfig" },
211 { 0, 1, "c0_mvpcontrol" },
212 { 0, 2, "c0_mvpconf0" },
213 { 0, 3, "c0_mvpconf1" },
214 { 1, 1, "c0_vpecontrol" },
215 { 1, 2, "c0_vpeconf0" },
216 { 1, 3, "c0_vpeconf1" },
217 { 1, 4, "c0_yqmask" },
218 { 1, 5, "c0_vpeschedule" },
219 { 1, 6, "c0_vpeschefback" },
220 { 2, 1, "c0_tcstatus" },
221 { 2, 2, "c0_tcbind" },
222 { 2, 3, "c0_tcrestart" },
223 { 2, 4, "c0_tchalt" },
224 { 2, 5, "c0_tccontext" },
225 { 2, 6, "c0_tcschedule" },
226 { 2, 7, "c0_tcschefback" },
227 { 5, 1, "c0_pagegrain" },
228 { 6, 1, "c0_srsconf0" },
229 { 6, 2, "c0_srsconf1" },
230 { 6, 3, "c0_srsconf2" },
231 { 6, 4, "c0_srsconf3" },
232 { 6, 5, "c0_srsconf4" },
233 { 12, 1, "c0_intctl" },
234 { 12, 2, "c0_srsctl" },
235 { 12, 3, "c0_srsmap" },
236 { 15, 1, "c0_ebase" },
237 { 16, 1, "c0_config1" },
238 { 16, 2, "c0_config2" },
239 { 16, 3, "c0_config3" },
240 { 18, 1, "c0_watchlo,1" },
241 { 18, 2, "c0_watchlo,2" },
242 { 18, 3, "c0_watchlo,3" },
243 { 18, 4, "c0_watchlo,4" },
244 { 18, 5, "c0_watchlo,5" },
245 { 18, 6, "c0_watchlo,6" },
246 { 18, 7, "c0_watchlo,7" },
247 { 19, 1, "c0_watchhi,1" },
248 { 19, 2, "c0_watchhi,2" },
249 { 19, 3, "c0_watchhi,3" },
250 { 19, 4, "c0_watchhi,4" },
251 { 19, 5, "c0_watchhi,5" },
252 { 19, 6, "c0_watchhi,6" },
253 { 19, 7, "c0_watchhi,7" },
254 { 23, 1, "c0_tracecontrol" },
255 { 23, 2, "c0_tracecontrol2" },
256 { 23, 3, "c0_usertracedata" },
257 { 23, 4, "c0_tracebpc" },
258 { 25, 1, "c0_perfcnt,1" },
259 { 25, 2, "c0_perfcnt,2" },
260 { 25, 3, "c0_perfcnt,3" },
261 { 25, 4, "c0_perfcnt,4" },
262 { 25, 5, "c0_perfcnt,5" },
263 { 25, 6, "c0_perfcnt,6" },
264 { 25, 7, "c0_perfcnt,7" },
265 { 27, 1, "c0_cacheerr,1" },
266 { 27, 2, "c0_cacheerr,2" },
267 { 27, 3, "c0_cacheerr,3" },
268 { 28, 1, "c0_datalo" },
269 { 28, 2, "c0_taglo1" },
270 { 28, 3, "c0_datalo1" },
271 { 28, 4, "c0_taglo2" },
272 { 28, 5, "c0_datalo2" },
273 { 28, 6, "c0_taglo3" },
274 { 28, 7, "c0_datalo3" },
275 { 29, 1, "c0_datahi" },
276 { 29, 2, "c0_taghi1" },
277 { 29, 3, "c0_datahi1" },
278 { 29, 4, "c0_taghi2" },
279 { 29, 5, "c0_datahi2" },
280 { 29, 6, "c0_taghi3" },
281 { 29, 7, "c0_datahi3" },
284 /* SB-1: MIPS64 (mips_cp0_names_mips3264) with minor mods. */
285 static const char * const mips_cp0_names_sb1[32] =
287 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
288 "c0_context", "c0_pagemask", "c0_wired", "$7",
289 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
290 "c0_status", "c0_cause", "c0_epc", "c0_prid",
291 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
292 "c0_xcontext", "$21", "$22", "c0_debug",
293 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i",
294 "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave",
297 static const struct mips_cp0sel_name mips_cp0sel_names_sb1[] =
299 { 16, 1, "c0_config1" },
300 { 18, 1, "c0_watchlo,1" },
301 { 19, 1, "c0_watchhi,1" },
302 { 22, 0, "c0_perftrace" },
303 { 23, 3, "c0_edebug" },
304 { 25, 1, "c0_perfcnt,1" },
305 { 25, 2, "c0_perfcnt,2" },
306 { 25, 3, "c0_perfcnt,3" },
307 { 25, 4, "c0_perfcnt,4" },
308 { 25, 5, "c0_perfcnt,5" },
309 { 25, 6, "c0_perfcnt,6" },
310 { 25, 7, "c0_perfcnt,7" },
311 { 26, 1, "c0_buserr_pa" },
312 { 27, 1, "c0_cacheerr_d" },
313 { 27, 3, "c0_cacheerr_d_pa" },
314 { 28, 1, "c0_datalo_i" },
315 { 28, 2, "c0_taglo_d" },
316 { 28, 3, "c0_datalo_d" },
317 { 29, 1, "c0_datahi_i" },
318 { 29, 2, "c0_taghi_d" },
319 { 29, 3, "c0_datahi_d" },
322 static const char * const mips_hwr_names_numeric[32] =
324 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
325 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
326 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
327 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
330 static const char * const mips_hwr_names_mips3264r2[32] =
332 "hwr_cpunum", "hwr_synci_step", "hwr_cc", "hwr_ccres",
333 "$4", "$5", "$6", "$7",
334 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
335 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
336 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
339 struct mips_abi_choice
342 const char * const *gpr_names;
343 const char * const *fpr_names;
346 struct mips_abi_choice mips_abi_choices[] =
348 { "numeric", mips_gpr_names_numeric, mips_fpr_names_numeric },
349 { "32", mips_gpr_names_oldabi, mips_fpr_names_32 },
350 { "n32", mips_gpr_names_newabi, mips_fpr_names_n32 },
351 { "64", mips_gpr_names_newabi, mips_fpr_names_64 },
354 struct mips_arch_choice
358 unsigned long bfd_mach;
361 const char * const *cp0_names;
362 const struct mips_cp0sel_name *cp0sel_names;
363 unsigned int cp0sel_names_len;
364 const char * const *hwr_names;
367 const struct mips_arch_choice mips_arch_choices[] =
369 { "numeric", 0, 0, 0, 0,
370 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
372 { "r3000", 1, bfd_mach_mips3000, CPU_R3000, ISA_MIPS1,
373 mips_cp0_names_r3000, NULL, 0, mips_hwr_names_numeric },
374 { "r3900", 1, bfd_mach_mips3900, CPU_R3900, ISA_MIPS1,
375 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
376 { "r4000", 1, bfd_mach_mips4000, CPU_R4000, ISA_MIPS3,
377 mips_cp0_names_r4000, NULL, 0, mips_hwr_names_numeric },
378 { "r4010", 1, bfd_mach_mips4010, CPU_R4010, ISA_MIPS2,
379 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
380 { "vr4100", 1, bfd_mach_mips4100, CPU_VR4100, ISA_MIPS3,
381 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
382 { "vr4111", 1, bfd_mach_mips4111, CPU_R4111, ISA_MIPS3,
383 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
384 { "vr4120", 1, bfd_mach_mips4120, CPU_VR4120, ISA_MIPS3,
385 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
386 { "r4300", 1, bfd_mach_mips4300, CPU_R4300, ISA_MIPS3,
387 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
388 { "r4400", 1, bfd_mach_mips4400, CPU_R4400, ISA_MIPS3,
389 mips_cp0_names_r4000, NULL, 0, mips_hwr_names_numeric },
390 { "r4600", 1, bfd_mach_mips4600, CPU_R4600, ISA_MIPS3,
391 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
392 { "r4650", 1, bfd_mach_mips4650, CPU_R4650, ISA_MIPS3,
393 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
394 { "r5000", 1, bfd_mach_mips5000, CPU_R5000, ISA_MIPS4,
395 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
396 { "vr5400", 1, bfd_mach_mips5400, CPU_VR5400, ISA_MIPS4,
397 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
398 { "vr5500", 1, bfd_mach_mips5500, CPU_VR5500, ISA_MIPS4,
399 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
400 { "r6000", 1, bfd_mach_mips6000, CPU_R6000, ISA_MIPS2,
401 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
402 { "rm7000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4,
403 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
404 { "rm9000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4,
405 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
406 { "r8000", 1, bfd_mach_mips8000, CPU_R8000, ISA_MIPS4,
407 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
408 { "r10000", 1, bfd_mach_mips10000, CPU_R10000, ISA_MIPS4,
409 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
410 { "r12000", 1, bfd_mach_mips12000, CPU_R12000, ISA_MIPS4,
411 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
412 { "mips5", 1, bfd_mach_mips5, CPU_MIPS5, ISA_MIPS5,
413 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
415 /* For stock MIPS32, disassemble all applicable MIPS-specified ASEs.
416 Note that MIPS-3D and MDMX are not applicable to MIPS32. (See
417 _MIPS32 Architecture For Programmers Volume I: Introduction to the
418 MIPS32 Architecture_ (MIPS Document Number MD00082, Revision 0.95),
420 { "mips32", 1, bfd_mach_mipsisa32, CPU_MIPS32,
421 ISA_MIPS32 | INSN_MIPS16 | INSN_SMARTMIPS,
422 mips_cp0_names_mips3264,
423 mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
424 mips_hwr_names_numeric },
426 { "mips32r2", 1, bfd_mach_mipsisa32r2, CPU_MIPS32R2,
427 (ISA_MIPS32R2 | INSN_MIPS16 | INSN_SMARTMIPS | INSN_DSP | INSN_DSPR2
428 | INSN_MIPS3D | INSN_MT),
429 mips_cp0_names_mips3264r2,
430 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
431 mips_hwr_names_mips3264r2 },
433 /* For stock MIPS64, disassemble all applicable MIPS-specified ASEs. */
434 { "mips64", 1, bfd_mach_mipsisa64, CPU_MIPS64,
435 ISA_MIPS64 | INSN_MIPS16 | INSN_MIPS3D | INSN_MDMX,
436 mips_cp0_names_mips3264,
437 mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
438 mips_hwr_names_numeric },
440 { "mips64r2", 1, bfd_mach_mipsisa64r2, CPU_MIPS64R2,
441 (ISA_MIPS64R2 | INSN_MIPS16 | INSN_MIPS3D | INSN_DSP | INSN_DSPR2
442 | INSN_DSP64 | INSN_MT | INSN_MDMX),
443 mips_cp0_names_mips3264r2,
444 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
445 mips_hwr_names_mips3264r2 },
447 { "sb1", 1, bfd_mach_mips_sb1, CPU_SB1,
448 ISA_MIPS64 | INSN_MIPS3D | INSN_SB1,
450 mips_cp0sel_names_sb1, ARRAY_SIZE (mips_cp0sel_names_sb1),
451 mips_hwr_names_numeric },
453 /* This entry, mips16, is here only for ISA/processor selection; do
454 not print its name. */
455 { "", 1, bfd_mach_mips16, CPU_MIPS16, ISA_MIPS3 | INSN_MIPS16,
456 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
459 /* ISA and processor type to disassemble for, and register names to use.
460 set_default_mips_dis_options and parse_mips_dis_options fill in these
462 static int mips_processor;
464 static const char * const *mips_gpr_names;
465 static const char * const *mips_fpr_names;
466 static const char * const *mips_cp0_names;
467 static const struct mips_cp0sel_name *mips_cp0sel_names;
468 static int mips_cp0sel_names_len;
469 static const char * const *mips_hwr_names;
472 static int no_aliases; /* If set disassemble as most general inst. */
474 static const struct mips_abi_choice *
475 choose_abi_by_name (const char *name, unsigned int namelen)
477 const struct mips_abi_choice *c;
480 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_abi_choices) && c == NULL; i++)
481 if (strncmp (mips_abi_choices[i].name, name, namelen) == 0
482 && strlen (mips_abi_choices[i].name) == namelen)
483 c = &mips_abi_choices[i];
488 static const struct mips_arch_choice *
489 choose_arch_by_name (const char *name, unsigned int namelen)
491 const struct mips_arch_choice *c = NULL;
494 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
495 if (strncmp (mips_arch_choices[i].name, name, namelen) == 0
496 && strlen (mips_arch_choices[i].name) == namelen)
497 c = &mips_arch_choices[i];
502 static const struct mips_arch_choice *
503 choose_arch_by_number (unsigned long mach)
505 static unsigned long hint_bfd_mach;
506 static const struct mips_arch_choice *hint_arch_choice;
507 const struct mips_arch_choice *c;
510 /* We optimize this because even if the user specifies no
511 flags, this will be done for every instruction! */
512 if (hint_bfd_mach == mach
513 && hint_arch_choice != NULL
514 && hint_arch_choice->bfd_mach == hint_bfd_mach)
515 return hint_arch_choice;
517 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
519 if (mips_arch_choices[i].bfd_mach_valid
520 && mips_arch_choices[i].bfd_mach == mach)
522 c = &mips_arch_choices[i];
523 hint_bfd_mach = mach;
524 hint_arch_choice = c;
530 /* Check if the object uses NewABI conventions. */
533 is_newabi (Elf_Internal_Ehdr *header)
535 /* There are no old-style ABIs which use 64-bit ELF. */
536 if (header->e_ident[EI_CLASS] == ELFCLASS64)
539 /* If a 32-bit ELF file, n32 is a new-style ABI. */
540 if ((header->e_flags & EF_MIPS_ABI2) != 0)
547 set_default_mips_dis_options (struct disassemble_info *info)
549 const struct mips_arch_choice *chosen_arch;
551 /* Defaults: mipsIII/r3000 (?!), (o)32-style ("oldabi") GPR names,
552 and numeric FPR, CP0 register, and HWR names. */
553 mips_isa = ISA_MIPS3;
554 mips_processor = CPU_R3000;
555 mips_gpr_names = mips_gpr_names_oldabi;
556 mips_fpr_names = mips_fpr_names_numeric;
557 mips_cp0_names = mips_cp0_names_numeric;
558 mips_cp0sel_names = NULL;
559 mips_cp0sel_names_len = 0;
560 mips_hwr_names = mips_hwr_names_numeric;
563 /* If an ELF "newabi" binary, use the n32/(n)64 GPR names. */
564 if (info->flavour == bfd_target_elf_flavour && info->section != NULL)
566 Elf_Internal_Ehdr *header;
568 header = elf_elfheader (info->section->owner);
569 if (is_newabi (header))
570 mips_gpr_names = mips_gpr_names_newabi;
573 /* Set ISA, architecture, and cp0 register names as best we can. */
574 #if ! SYMTAB_AVAILABLE
575 /* This is running out on a target machine, not in a host tool.
576 FIXME: Where does mips_target_info come from? */
577 target_processor = mips_target_info.processor;
578 mips_isa = mips_target_info.isa;
580 chosen_arch = choose_arch_by_number (info->mach);
581 if (chosen_arch != NULL)
583 mips_processor = chosen_arch->processor;
584 mips_isa = chosen_arch->isa;
585 mips_cp0_names = chosen_arch->cp0_names;
586 mips_cp0sel_names = chosen_arch->cp0sel_names;
587 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
588 mips_hwr_names = chosen_arch->hwr_names;
594 parse_mips_dis_option (const char *option, unsigned int len)
596 unsigned int i, optionlen, vallen;
598 const struct mips_abi_choice *chosen_abi;
599 const struct mips_arch_choice *chosen_arch;
601 /* Try to match options that are simple flags */
602 if (CONST_STRNEQ (option, "no-aliases"))
608 /* Look for the = that delimits the end of the option name. */
609 for (i = 0; i < len; i++)
610 if (option[i] == '=')
613 if (i == 0) /* Invalid option: no name before '='. */
615 if (i == len) /* Invalid option: no '='. */
617 if (i == (len - 1)) /* Invalid option: no value after '='. */
621 val = option + (optionlen + 1);
622 vallen = len - (optionlen + 1);
624 if (strncmp ("gpr-names", option, optionlen) == 0
625 && strlen ("gpr-names") == optionlen)
627 chosen_abi = choose_abi_by_name (val, vallen);
628 if (chosen_abi != NULL)
629 mips_gpr_names = chosen_abi->gpr_names;
633 if (strncmp ("fpr-names", option, optionlen) == 0
634 && strlen ("fpr-names") == optionlen)
636 chosen_abi = choose_abi_by_name (val, vallen);
637 if (chosen_abi != NULL)
638 mips_fpr_names = chosen_abi->fpr_names;
642 if (strncmp ("cp0-names", option, optionlen) == 0
643 && strlen ("cp0-names") == optionlen)
645 chosen_arch = choose_arch_by_name (val, vallen);
646 if (chosen_arch != NULL)
648 mips_cp0_names = chosen_arch->cp0_names;
649 mips_cp0sel_names = chosen_arch->cp0sel_names;
650 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
655 if (strncmp ("hwr-names", option, optionlen) == 0
656 && strlen ("hwr-names") == optionlen)
658 chosen_arch = choose_arch_by_name (val, vallen);
659 if (chosen_arch != NULL)
660 mips_hwr_names = chosen_arch->hwr_names;
664 if (strncmp ("reg-names", option, optionlen) == 0
665 && strlen ("reg-names") == optionlen)
667 /* We check both ABI and ARCH here unconditionally, so
668 that "numeric" will do the desirable thing: select
669 numeric register names for all registers. Other than
670 that, a given name probably won't match both. */
671 chosen_abi = choose_abi_by_name (val, vallen);
672 if (chosen_abi != NULL)
674 mips_gpr_names = chosen_abi->gpr_names;
675 mips_fpr_names = chosen_abi->fpr_names;
677 chosen_arch = choose_arch_by_name (val, vallen);
678 if (chosen_arch != NULL)
680 mips_cp0_names = chosen_arch->cp0_names;
681 mips_cp0sel_names = chosen_arch->cp0sel_names;
682 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
683 mips_hwr_names = chosen_arch->hwr_names;
688 /* Invalid option. */
692 parse_mips_dis_options (const char *options)
694 const char *option_end;
699 while (*options != '\0')
701 /* Skip empty options. */
708 /* We know that *options is neither NUL or a comma. */
709 option_end = options + 1;
710 while (*option_end != ',' && *option_end != '\0')
713 parse_mips_dis_option (options, option_end - options);
715 /* Go on to the next one. If option_end points to a comma, it
716 will be skipped above. */
717 options = option_end;
721 static const struct mips_cp0sel_name *
722 lookup_mips_cp0sel_name (const struct mips_cp0sel_name *names,
729 for (i = 0; i < len; i++)
730 if (names[i].cp0reg == cp0reg && names[i].sel == sel)
735 /* Print insn arguments for 32/64-bit code. */
738 print_insn_args (const char *d,
739 register unsigned long int l,
741 struct disassemble_info *info,
742 const struct mips_opcode *opp)
745 unsigned int lsb, msb, msbd;
749 for (; *d != '\0'; d++)
758 (*info->fprintf_func) (info->stream, "%c", *d);
762 /* Extension character; switch for second char. */
767 /* xgettext:c-format */
768 (*info->fprintf_func) (info->stream,
769 _("# internal error, incomplete extension sequence (+)"));
773 lsb = (l >> OP_SH_SHAMT) & OP_MASK_SHAMT;
774 (*info->fprintf_func) (info->stream, "0x%x", lsb);
778 msb = (l >> OP_SH_INSMSB) & OP_MASK_INSMSB;
779 (*info->fprintf_func) (info->stream, "0x%x", msb - lsb + 1);
783 (*info->fprintf_func) (info->stream, "0x%lx",
784 (l >> OP_SH_UDI1) & OP_MASK_UDI1);
788 (*info->fprintf_func) (info->stream, "0x%lx",
789 (l >> OP_SH_UDI2) & OP_MASK_UDI2);
793 (*info->fprintf_func) (info->stream, "0x%lx",
794 (l >> OP_SH_UDI3) & OP_MASK_UDI3);
798 (*info->fprintf_func) (info->stream, "0x%lx",
799 (l >> OP_SH_UDI4) & OP_MASK_UDI4);
804 msbd = (l >> OP_SH_EXTMSBD) & OP_MASK_EXTMSBD;
805 (*info->fprintf_func) (info->stream, "0x%x", msbd + 1);
810 const struct mips_cp0sel_name *n;
811 unsigned int cp0reg, sel;
813 cp0reg = (l >> OP_SH_RD) & OP_MASK_RD;
814 sel = (l >> OP_SH_SEL) & OP_MASK_SEL;
816 /* CP0 register including 'sel' code for mtcN (et al.), to be
817 printed textually if known. If not known, print both
818 CP0 register name and sel numerically since CP0 register
819 with sel 0 may have a name unrelated to register being
821 n = lookup_mips_cp0sel_name(mips_cp0sel_names,
822 mips_cp0sel_names_len, cp0reg, sel);
824 (*info->fprintf_func) (info->stream, "%s", n->name);
826 (*info->fprintf_func) (info->stream, "$%d,%d", cp0reg, sel);
831 lsb = ((l >> OP_SH_SHAMT) & OP_MASK_SHAMT) + 32;
832 (*info->fprintf_func) (info->stream, "0x%x", lsb);
836 msb = ((l >> OP_SH_INSMSB) & OP_MASK_INSMSB) + 32;
837 (*info->fprintf_func) (info->stream, "0x%x", msb - lsb + 1);
841 msbd = ((l >> OP_SH_EXTMSBD) & OP_MASK_EXTMSBD) + 32;
842 (*info->fprintf_func) (info->stream, "0x%x", msbd + 1);
845 case 't': /* Coprocessor 0 reg name */
846 (*info->fprintf_func) (info->stream, "%s",
847 mips_cp0_names[(l >> OP_SH_RT) &
851 case 'T': /* Coprocessor 0 reg name */
853 const struct mips_cp0sel_name *n;
854 unsigned int cp0reg, sel;
856 cp0reg = (l >> OP_SH_RT) & OP_MASK_RT;
857 sel = (l >> OP_SH_SEL) & OP_MASK_SEL;
859 /* CP0 register including 'sel' code for mftc0, to be
860 printed textually if known. If not known, print both
861 CP0 register name and sel numerically since CP0 register
862 with sel 0 may have a name unrelated to register being
864 n = lookup_mips_cp0sel_name(mips_cp0sel_names,
865 mips_cp0sel_names_len, cp0reg, sel);
867 (*info->fprintf_func) (info->stream, "%s", n->name);
869 (*info->fprintf_func) (info->stream, "$%d,%d", cp0reg, sel);
874 /* xgettext:c-format */
875 (*info->fprintf_func) (info->stream,
876 _("# internal error, undefined extension sequence (+%c)"),
883 (*info->fprintf_func) (info->stream, "0x%lx",
884 (l >> OP_SH_BP) & OP_MASK_BP);
888 (*info->fprintf_func) (info->stream, "0x%lx",
889 (l >> OP_SH_SA3) & OP_MASK_SA3);
893 (*info->fprintf_func) (info->stream, "0x%lx",
894 (l >> OP_SH_SA4) & OP_MASK_SA4);
898 (*info->fprintf_func) (info->stream, "0x%lx",
899 (l >> OP_SH_IMM8) & OP_MASK_IMM8);
903 (*info->fprintf_func) (info->stream, "0x%lx",
904 (l >> OP_SH_RS) & OP_MASK_RS);
908 (*info->fprintf_func) (info->stream, "$ac%ld",
909 (l >> OP_SH_DSPACC) & OP_MASK_DSPACC);
913 (*info->fprintf_func) (info->stream, "0x%lx",
914 (l >> OP_SH_WRDSP) & OP_MASK_WRDSP);
918 (*info->fprintf_func) (info->stream, "$ac%ld",
919 (l >> OP_SH_DSPACC_S) & OP_MASK_DSPACC_S);
922 case '0': /* dsp 6-bit signed immediate in bit 20 */
923 delta = ((l >> OP_SH_DSPSFT) & OP_MASK_DSPSFT);
924 if (delta & 0x20) /* test sign bit */
925 delta |= ~OP_MASK_DSPSFT;
926 (*info->fprintf_func) (info->stream, "%d", delta);
929 case ':': /* dsp 7-bit signed immediate in bit 19 */
930 delta = ((l >> OP_SH_DSPSFT_7) & OP_MASK_DSPSFT_7);
931 if (delta & 0x40) /* test sign bit */
932 delta |= ~OP_MASK_DSPSFT_7;
933 (*info->fprintf_func) (info->stream, "%d", delta);
937 (*info->fprintf_func) (info->stream, "0x%lx",
938 (l >> OP_SH_RDDSP) & OP_MASK_RDDSP);
941 case '@': /* dsp 10-bit signed immediate in bit 16 */
942 delta = ((l >> OP_SH_IMM10) & OP_MASK_IMM10);
943 if (delta & 0x200) /* test sign bit */
944 delta |= ~OP_MASK_IMM10;
945 (*info->fprintf_func) (info->stream, "%d", delta);
949 (*info->fprintf_func) (info->stream, "%ld",
950 (l >> OP_SH_MT_U) & OP_MASK_MT_U);
954 (*info->fprintf_func) (info->stream, "%ld",
955 (l >> OP_SH_MT_H) & OP_MASK_MT_H);
959 (*info->fprintf_func) (info->stream, "$ac%ld",
960 (l >> OP_SH_MTACC_T) & OP_MASK_MTACC_T);
964 (*info->fprintf_func) (info->stream, "$ac%ld",
965 (l >> OP_SH_MTACC_D) & OP_MASK_MTACC_D);
969 /* Coprocessor register for CTTC1, MTTC2, MTHC2, CTTC2. */
970 (*info->fprintf_func) (info->stream, "$%ld",
971 (l >> OP_SH_RD) & OP_MASK_RD);
978 (*info->fprintf_func) (info->stream, "%s",
979 mips_gpr_names[(l >> OP_SH_RS) & OP_MASK_RS]);
984 (*info->fprintf_func) (info->stream, "%s",
985 mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
990 (*info->fprintf_func) (info->stream, "0x%lx",
991 (l >> OP_SH_IMMEDIATE) & OP_MASK_IMMEDIATE);
994 case 'j': /* Same as i, but sign-extended. */
996 delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA;
999 (*info->fprintf_func) (info->stream, "%d",
1004 (*info->fprintf_func) (info->stream, "0x%x",
1005 (unsigned int) ((l >> OP_SH_PREFX)
1010 (*info->fprintf_func) (info->stream, "0x%x",
1011 (unsigned int) ((l >> OP_SH_CACHE)
1016 info->target = (((pc + 4) & ~(bfd_vma) 0x0fffffff)
1017 | (((l >> OP_SH_TARGET) & OP_MASK_TARGET) << 2));
1018 /* For gdb disassembler, force odd address on jalx. */
1019 if (info->flavour == bfd_target_unknown_flavour
1020 && strcmp (opp->name, "jalx") == 0)
1022 (*info->print_address_func) (info->target, info);
1026 /* Sign extend the displacement. */
1027 delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA;
1030 info->target = (delta << 2) + pc + INSNLEN;
1031 (*info->print_address_func) (info->target, info);
1035 (*info->fprintf_func) (info->stream, "%s",
1036 mips_gpr_names[(l >> OP_SH_RD) & OP_MASK_RD]);
1041 /* First check for both rd and rt being equal. */
1042 unsigned int reg = (l >> OP_SH_RD) & OP_MASK_RD;
1043 if (reg == ((l >> OP_SH_RT) & OP_MASK_RT))
1044 (*info->fprintf_func) (info->stream, "%s",
1045 mips_gpr_names[reg]);
1048 /* If one is zero use the other. */
1050 (*info->fprintf_func) (info->stream, "%s",
1051 mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
1052 else if (((l >> OP_SH_RT) & OP_MASK_RT) == 0)
1053 (*info->fprintf_func) (info->stream, "%s",
1054 mips_gpr_names[reg]);
1055 else /* Bogus, result depends on processor. */
1056 (*info->fprintf_func) (info->stream, "%s or %s",
1057 mips_gpr_names[reg],
1058 mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
1064 (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]);
1068 (*info->fprintf_func) (info->stream, "0x%lx",
1069 (l >> OP_SH_SHAMT) & OP_MASK_SHAMT);
1073 (*info->fprintf_func) (info->stream, "0x%lx",
1074 (l >> OP_SH_CODE) & OP_MASK_CODE);
1078 (*info->fprintf_func) (info->stream, "0x%lx",
1079 (l >> OP_SH_CODE2) & OP_MASK_CODE2);
1083 (*info->fprintf_func) (info->stream, "0x%lx",
1084 (l >> OP_SH_COPZ) & OP_MASK_COPZ);
1088 (*info->fprintf_func) (info->stream, "0x%lx",
1090 (l >> OP_SH_CODE20) & OP_MASK_CODE20);
1094 (*info->fprintf_func) (info->stream, "0x%lx",
1095 (l >> OP_SH_CODE19) & OP_MASK_CODE19);
1100 (*info->fprintf_func) (info->stream, "%s",
1101 mips_fpr_names[(l >> OP_SH_FS) & OP_MASK_FS]);
1106 (*info->fprintf_func) (info->stream, "%s",
1107 mips_fpr_names[(l >> OP_SH_FT) & OP_MASK_FT]);
1111 (*info->fprintf_func) (info->stream, "%s",
1112 mips_fpr_names[(l >> OP_SH_FD) & OP_MASK_FD]);
1116 (*info->fprintf_func) (info->stream, "%s",
1117 mips_fpr_names[(l >> OP_SH_FR) & OP_MASK_FR]);
1121 /* Coprocessor register for lwcN instructions, et al.
1123 Note that there is no load/store cp0 instructions, and
1124 that FPU (cp1) instructions disassemble this field using
1125 'T' format. Therefore, until we gain understanding of
1126 cp2 register names, we can simply print the register
1128 (*info->fprintf_func) (info->stream, "$%ld",
1129 (l >> OP_SH_RT) & OP_MASK_RT);
1133 /* Coprocessor register for mtcN instructions, et al. Note
1134 that FPU (cp1) instructions disassemble this field using
1135 'S' format. Therefore, we only need to worry about cp0,
1137 op = (l >> OP_SH_OP) & OP_MASK_OP;
1138 if (op == OP_OP_COP0)
1139 (*info->fprintf_func) (info->stream, "%s",
1140 mips_cp0_names[(l >> OP_SH_RD) & OP_MASK_RD]);
1142 (*info->fprintf_func) (info->stream, "$%ld",
1143 (l >> OP_SH_RD) & OP_MASK_RD);
1147 (*info->fprintf_func) (info->stream, "%s",
1148 mips_hwr_names[(l >> OP_SH_RD) & OP_MASK_RD]);
1152 (*info->fprintf_func) (info->stream,
1153 ((opp->pinfo & (FP_D | FP_S)) != 0
1154 ? "$fcc%ld" : "$cc%ld"),
1155 (l >> OP_SH_BCC) & OP_MASK_BCC);
1159 (*info->fprintf_func) (info->stream, "$fcc%ld",
1160 (l >> OP_SH_CCC) & OP_MASK_CCC);
1164 (*info->fprintf_func) (info->stream, "%ld",
1165 (l >> OP_SH_PERFREG) & OP_MASK_PERFREG);
1169 (*info->fprintf_func) (info->stream, "%ld",
1170 (l >> OP_SH_VECBYTE) & OP_MASK_VECBYTE);
1174 (*info->fprintf_func) (info->stream, "%ld",
1175 (l >> OP_SH_VECALIGN) & OP_MASK_VECALIGN);
1179 (*info->fprintf_func) (info->stream, "%ld",
1180 (l >> OP_SH_SEL) & OP_MASK_SEL);
1184 (*info->fprintf_func) (info->stream, "%ld",
1185 (l >> OP_SH_ALN) & OP_MASK_ALN);
1190 unsigned int vsel = (l >> OP_SH_VSEL) & OP_MASK_VSEL;
1192 if ((vsel & 0x10) == 0)
1197 for (fmt = 0; fmt < 3; fmt++, vsel >>= 1)
1198 if ((vsel & 1) == 0)
1200 (*info->fprintf_func) (info->stream, "$v%ld[%d]",
1201 (l >> OP_SH_FT) & OP_MASK_FT,
1204 else if ((vsel & 0x08) == 0)
1206 (*info->fprintf_func) (info->stream, "$v%ld",
1207 (l >> OP_SH_FT) & OP_MASK_FT);
1211 (*info->fprintf_func) (info->stream, "0x%lx",
1212 (l >> OP_SH_FT) & OP_MASK_FT);
1218 (*info->fprintf_func) (info->stream, "$v%ld",
1219 (l >> OP_SH_FD) & OP_MASK_FD);
1223 (*info->fprintf_func) (info->stream, "$v%ld",
1224 (l >> OP_SH_FS) & OP_MASK_FS);
1228 (*info->fprintf_func) (info->stream, "$v%ld",
1229 (l >> OP_SH_FT) & OP_MASK_FT);
1233 /* xgettext:c-format */
1234 (*info->fprintf_func) (info->stream,
1235 _("# internal error, undefined modifier (%c)"),
1242 /* Print the mips instruction at address MEMADDR in debugged memory,
1243 on using INFO. Returns length of the instruction, in bytes, which is
1244 always INSNLEN. BIGENDIAN must be 1 if this is big-endian code, 0 if
1245 this is little-endian code. */
1248 print_insn_mips (bfd_vma memaddr,
1249 unsigned long int word,
1250 struct disassemble_info *info)
1252 const struct mips_opcode *op;
1253 static bfd_boolean init = 0;
1254 static const struct mips_opcode *mips_hash[OP_MASK_OP + 1];
1256 /* Build a hash table to shorten the search time. */
1261 for (i = 0; i <= OP_MASK_OP; i++)
1263 for (op = mips_opcodes; op < &mips_opcodes[NUMOPCODES]; op++)
1265 if (op->pinfo == INSN_MACRO
1266 || (no_aliases && (op->pinfo2 & INSN2_ALIAS)))
1268 if (i == ((op->match >> OP_SH_OP) & OP_MASK_OP))
1279 info->bytes_per_chunk = INSNLEN;
1280 info->display_endian = info->endian;
1281 info->insn_info_valid = 1;
1282 info->branch_delay_insns = 0;
1283 info->data_size = 0;
1284 info->insn_type = dis_nonbranch;
1288 op = mips_hash[(word >> OP_SH_OP) & OP_MASK_OP];
1291 for (; op < &mips_opcodes[NUMOPCODES]; op++)
1293 if (op->pinfo != INSN_MACRO
1294 && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
1295 && (word & op->mask) == op->match)
1299 /* We always allow to disassemble the jalx instruction. */
1300 if (! OPCODE_IS_MEMBER (op, mips_isa, mips_processor)
1301 && strcmp (op->name, "jalx"))
1304 /* Figure out instruction type and branch delay information. */
1305 if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
1307 if ((info->insn_type & INSN_WRITE_GPR_31) != 0)
1308 info->insn_type = dis_jsr;
1310 info->insn_type = dis_branch;
1311 info->branch_delay_insns = 1;
1313 else if ((op->pinfo & (INSN_COND_BRANCH_DELAY
1314 | INSN_COND_BRANCH_LIKELY)) != 0)
1316 if ((info->insn_type & INSN_WRITE_GPR_31) != 0)
1317 info->insn_type = dis_condjsr;
1319 info->insn_type = dis_condbranch;
1320 info->branch_delay_insns = 1;
1322 else if ((op->pinfo & (INSN_STORE_MEMORY
1323 | INSN_LOAD_MEMORY_DELAY)) != 0)
1324 info->insn_type = dis_dref;
1326 (*info->fprintf_func) (info->stream, "%s", op->name);
1329 if (d != NULL && *d != '\0')
1331 (*info->fprintf_func) (info->stream, "\t");
1332 print_insn_args (d, word, memaddr, info, op);
1340 /* Handle undefined instructions. */
1341 info->insn_type = dis_noninsn;
1342 (*info->fprintf_func) (info->stream, "0x%lx", word);
1346 /* Disassemble an operand for a mips16 instruction. */
1349 print_mips16_insn_arg (char type,
1350 const struct mips_opcode *op,
1352 bfd_boolean use_extend,
1355 struct disassemble_info *info)
1362 (*info->fprintf_func) (info->stream, "%c", type);
1367 (*info->fprintf_func) (info->stream, "%s",
1368 mips16_reg_names(((l >> MIPS16OP_SH_RY)
1369 & MIPS16OP_MASK_RY)));
1374 (*info->fprintf_func) (info->stream, "%s",
1375 mips16_reg_names(((l >> MIPS16OP_SH_RX)
1376 & MIPS16OP_MASK_RX)));
1380 (*info->fprintf_func) (info->stream, "%s",
1381 mips16_reg_names(((l >> MIPS16OP_SH_RZ)
1382 & MIPS16OP_MASK_RZ)));
1386 (*info->fprintf_func) (info->stream, "%s",
1387 mips16_reg_names(((l >> MIPS16OP_SH_MOVE32Z)
1388 & MIPS16OP_MASK_MOVE32Z)));
1392 (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]);
1396 (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[29]);
1400 (*info->fprintf_func) (info->stream, "$pc");
1404 (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[31]);
1408 (*info->fprintf_func) (info->stream, "%s",
1409 mips_gpr_names[((l >> MIPS16OP_SH_REGR32)
1410 & MIPS16OP_MASK_REGR32)]);
1414 (*info->fprintf_func) (info->stream, "%s",
1415 mips_gpr_names[MIPS16OP_EXTRACT_REG32R (l)]);
1441 int immed, nbits, shift, signedp, extbits, pcrel, extu, branch;
1453 immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ;
1459 immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX;
1465 immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ;
1471 immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX;
1477 immed = (l >> MIPS16OP_SH_IMM4) & MIPS16OP_MASK_IMM4;
1483 immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1484 info->insn_type = dis_dref;
1485 info->data_size = 1;
1490 immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1491 info->insn_type = dis_dref;
1492 info->data_size = 2;
1497 immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1498 if ((op->pinfo & MIPS16_INSN_READ_PC) == 0
1499 && (op->pinfo & MIPS16_INSN_READ_SP) == 0)
1501 info->insn_type = dis_dref;
1502 info->data_size = 4;
1508 immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1509 info->insn_type = dis_dref;
1510 info->data_size = 8;
1514 immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1519 immed = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
1523 immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1528 immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1529 /* FIXME: This might be lw, or it might be addiu to $sp or
1530 $pc. We assume it's load. */
1531 info->insn_type = dis_dref;
1532 info->data_size = 4;
1537 immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1538 info->insn_type = dis_dref;
1539 info->data_size = 8;
1543 immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1548 immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1554 immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1559 immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1563 info->insn_type = dis_condbranch;
1567 immed = (l >> MIPS16OP_SH_IMM11) & MIPS16OP_MASK_IMM11;
1571 info->insn_type = dis_branch;
1576 immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1578 /* FIXME: This can be lw or la. We assume it is lw. */
1579 info->insn_type = dis_dref;
1580 info->data_size = 4;
1585 immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1587 info->insn_type = dis_dref;
1588 info->data_size = 8;
1593 immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1602 if (signedp && immed >= (1 << (nbits - 1)))
1603 immed -= 1 << nbits;
1605 if ((type == '<' || type == '>' || type == '[' || type == ']')
1612 immed |= ((extend & 0x1f) << 11) | (extend & 0x7e0);
1613 else if (extbits == 15)
1614 immed |= ((extend & 0xf) << 11) | (extend & 0x7f0);
1616 immed = ((extend >> 6) & 0x1f) | (extend & 0x20);
1617 immed &= (1 << extbits) - 1;
1618 if (! extu && immed >= (1 << (extbits - 1)))
1619 immed -= 1 << extbits;
1623 (*info->fprintf_func) (info->stream, "%d", immed);
1631 baseaddr = memaddr + 2;
1633 else if (use_extend)
1634 baseaddr = memaddr - 2;
1642 /* If this instruction is in the delay slot of a jr
1643 instruction, the base address is the address of the
1644 jr instruction. If it is in the delay slot of jalr
1645 instruction, the base address is the address of the
1646 jalr instruction. This test is unreliable: we have
1647 no way of knowing whether the previous word is
1648 instruction or data. */
1649 status = (*info->read_memory_func) (memaddr - 4, buffer, 2,
1652 && (((info->endian == BFD_ENDIAN_BIG
1653 ? bfd_getb16 (buffer)
1654 : bfd_getl16 (buffer))
1655 & 0xf800) == 0x1800))
1656 baseaddr = memaddr - 4;
1659 status = (*info->read_memory_func) (memaddr - 2, buffer,
1662 && (((info->endian == BFD_ENDIAN_BIG
1663 ? bfd_getb16 (buffer)
1664 : bfd_getl16 (buffer))
1665 & 0xf81f) == 0xe800))
1666 baseaddr = memaddr - 2;
1669 info->target = (baseaddr & ~((1 << shift) - 1)) + immed;
1671 && info->flavour == bfd_target_unknown_flavour)
1672 /* For gdb disassembler, maintain odd address. */
1674 (*info->print_address_func) (info->target, info);
1681 int jalx = l & 0x400;
1685 l = ((l & 0x1f) << 23) | ((l & 0x3e0) << 13) | (extend << 2);
1686 if (!jalx && info->flavour == bfd_target_unknown_flavour)
1687 /* For gdb disassembler, maintain odd address. */
1690 info->target = ((memaddr + 4) & ~(bfd_vma) 0x0fffffff) | l;
1691 (*info->print_address_func) (info->target, info);
1692 info->insn_type = dis_jsr;
1693 info->branch_delay_insns = 1;
1699 int need_comma, amask, smask;
1703 l = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
1705 amask = (l >> 3) & 7;
1707 if (amask > 0 && amask < 5)
1709 (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]);
1711 (*info->fprintf_func) (info->stream, "-%s",
1712 mips_gpr_names[amask + 3]);
1716 smask = (l >> 1) & 3;
1719 (*info->fprintf_func) (info->stream, "%s??",
1720 need_comma ? "," : "");
1725 (*info->fprintf_func) (info->stream, "%s%s",
1726 need_comma ? "," : "",
1727 mips_gpr_names[16]);
1729 (*info->fprintf_func) (info->stream, "-%s",
1730 mips_gpr_names[smask + 15]);
1736 (*info->fprintf_func) (info->stream, "%s%s",
1737 need_comma ? "," : "",
1738 mips_gpr_names[31]);
1742 if (amask == 5 || amask == 6)
1744 (*info->fprintf_func) (info->stream, "%s$f0",
1745 need_comma ? "," : "");
1747 (*info->fprintf_func) (info->stream, "-$f1");
1754 /* MIPS16e save/restore. */
1757 int amask, args, statics;
1766 amask = (l >> 16) & 0xf;
1767 if (amask == MIPS16_ALL_ARGS)
1772 else if (amask == MIPS16_ALL_STATICS)
1780 statics = amask & 3;
1784 (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]);
1786 (*info->fprintf_func) (info->stream, "-%s",
1787 mips_gpr_names[4 + args - 1]);
1791 framesz = (((l >> 16) & 0xf0) | (l & 0x0f)) * 8;
1792 if (framesz == 0 && !use_extend)
1795 (*info->fprintf_func) (info->stream, "%s%d",
1796 need_comma ? "," : "",
1799 if (l & 0x40) /* $ra */
1800 (*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[31]);
1802 nsreg = (l >> 24) & 0x7;
1804 if (l & 0x20) /* $s0 */
1806 if (l & 0x10) /* $s1 */
1808 if (nsreg > 0) /* $s2-$s8 */
1809 smask |= ((1 << nsreg) - 1) << 2;
1811 /* Find first set static reg bit. */
1812 for (i = 0; i < 9; i++)
1814 if (smask & (1 << i))
1816 (*info->fprintf_func) (info->stream, ",%s",
1817 mips_gpr_names[i == 8 ? 30 : (16 + i)]);
1818 /* Skip over string of set bits. */
1819 for (j = i; smask & (2 << j); j++)
1822 (*info->fprintf_func) (info->stream, "-%s",
1823 mips_gpr_names[j == 8 ? 30 : (16 + j)]);
1828 /* Statics $ax - $a3. */
1830 (*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[7]);
1831 else if (statics > 0)
1832 (*info->fprintf_func) (info->stream, ",%s-%s",
1833 mips_gpr_names[7 - statics + 1],
1839 /* xgettext:c-format */
1840 (*info->fprintf_func)
1842 _("# internal disassembler error, unrecognised modifier (%c)"),
1848 /* Disassemble mips16 instructions. */
1851 print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
1857 bfd_boolean use_extend;
1859 const struct mips_opcode *op, *opend;
1861 info->bytes_per_chunk = 2;
1862 info->display_endian = info->endian;
1863 info->insn_info_valid = 1;
1864 info->branch_delay_insns = 0;
1865 info->data_size = 0;
1866 info->insn_type = dis_nonbranch;
1870 status = (*info->read_memory_func) (memaddr, buffer, 2, info);
1873 (*info->memory_error_func) (status, memaddr, info);
1879 if (info->endian == BFD_ENDIAN_BIG)
1880 insn = bfd_getb16 (buffer);
1882 insn = bfd_getl16 (buffer);
1884 /* Handle the extend opcode specially. */
1886 if ((insn & 0xf800) == 0xf000)
1889 extend = insn & 0x7ff;
1893 status = (*info->read_memory_func) (memaddr, buffer, 2, info);
1896 (*info->fprintf_func) (info->stream, "extend 0x%x",
1897 (unsigned int) extend);
1898 (*info->memory_error_func) (status, memaddr, info);
1902 if (info->endian == BFD_ENDIAN_BIG)
1903 insn = bfd_getb16 (buffer);
1905 insn = bfd_getl16 (buffer);
1907 /* Check for an extend opcode followed by an extend opcode. */
1908 if ((insn & 0xf800) == 0xf000)
1910 (*info->fprintf_func) (info->stream, "extend 0x%x",
1911 (unsigned int) extend);
1912 info->insn_type = dis_noninsn;
1919 /* FIXME: Should probably use a hash table on the major opcode here. */
1921 opend = mips16_opcodes + bfd_mips16_num_opcodes;
1922 for (op = mips16_opcodes; op < opend; op++)
1924 if (op->pinfo != INSN_MACRO
1925 && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
1926 && (insn & op->mask) == op->match)
1930 if (strchr (op->args, 'a') != NULL)
1934 (*info->fprintf_func) (info->stream, "extend 0x%x",
1935 (unsigned int) extend);
1936 info->insn_type = dis_noninsn;
1944 status = (*info->read_memory_func) (memaddr, buffer, 2,
1949 if (info->endian == BFD_ENDIAN_BIG)
1950 extend = bfd_getb16 (buffer);
1952 extend = bfd_getl16 (buffer);
1957 (*info->fprintf_func) (info->stream, "%s", op->name);
1958 if (op->args[0] != '\0')
1959 (*info->fprintf_func) (info->stream, "\t");
1961 for (s = op->args; *s != '\0'; s++)
1965 && (((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)
1966 == ((insn >> MIPS16OP_SH_RY) & MIPS16OP_MASK_RY)))
1968 /* Skip the register and the comma. */
1974 && (((insn >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ)
1975 == ((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)))
1977 /* Skip the register and the comma. */
1981 print_mips16_insn_arg (*s, op, insn, use_extend, extend, memaddr,
1985 if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
1987 info->branch_delay_insns = 1;
1988 if (info->insn_type != dis_jsr)
1989 info->insn_type = dis_branch;
1997 (*info->fprintf_func) (info->stream, "0x%x", extend | 0xf000);
1998 (*info->fprintf_func) (info->stream, "0x%x", insn);
1999 info->insn_type = dis_noninsn;
2004 /* In an environment where we do not know the symbol type of the
2005 instruction we are forced to assume that the low order bit of the
2006 instructions' address may mark it as a mips16 instruction. If we
2007 are single stepping, or the pc is within the disassembled function,
2008 this works. Otherwise, we need a clue. Sometimes. */
2011 _print_insn_mips (bfd_vma memaddr,
2012 struct disassemble_info *info,
2013 enum bfd_endian endianness)
2015 bfd_byte buffer[INSNLEN];
2018 set_default_mips_dis_options (info);
2019 parse_mips_dis_options (info->disassembler_options);
2022 /* FIXME: If odd address, this is CLEARLY a mips 16 instruction. */
2023 /* Only a few tools will work this way. */
2025 return print_insn_mips16 (memaddr, info);
2028 #if SYMTAB_AVAILABLE
2029 if (info->mach == bfd_mach_mips16
2030 || (info->flavour == bfd_target_elf_flavour
2031 && info->symbols != NULL
2032 && ((*(elf_symbol_type **) info->symbols)->internal_elf_sym.st_other
2034 return print_insn_mips16 (memaddr, info);
2037 status = (*info->read_memory_func) (memaddr, buffer, INSNLEN, info);
2042 if (endianness == BFD_ENDIAN_BIG)
2043 insn = (unsigned long) bfd_getb32 (buffer);
2045 insn = (unsigned long) bfd_getl32 (buffer);
2047 return print_insn_mips (memaddr, insn, info);
2051 (*info->memory_error_func) (status, memaddr, info);
2057 print_insn_big_mips (bfd_vma memaddr, struct disassemble_info *info)
2059 return _print_insn_mips (memaddr, info, BFD_ENDIAN_BIG);
2063 print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info)
2065 return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE);
2069 print_mips_disassembler_options (FILE *stream)
2073 fprintf (stream, _("\n\
2074 The following MIPS specific disassembler options are supported for use\n\
2075 with the -M switch (multiple options should be separated by commas):\n"));
2077 fprintf (stream, _("\n\
2078 gpr-names=ABI Print GPR names according to specified ABI.\n\
2079 Default: based on binary being disassembled.\n"));
2081 fprintf (stream, _("\n\
2082 fpr-names=ABI Print FPR names according to specified ABI.\n\
2083 Default: numeric.\n"));
2085 fprintf (stream, _("\n\
2086 cp0-names=ARCH Print CP0 register names according to\n\
2087 specified architecture.\n\
2088 Default: based on binary being disassembled.\n"));
2090 fprintf (stream, _("\n\
2091 hwr-names=ARCH Print HWR names according to specified \n\
2093 Default: based on binary being disassembled.\n"));
2095 fprintf (stream, _("\n\
2096 reg-names=ABI Print GPR and FPR names according to\n\
2097 specified ABI.\n"));
2099 fprintf (stream, _("\n\
2100 reg-names=ARCH Print CP0 register and HWR names according to\n\
2101 specified architecture.\n"));
2103 fprintf (stream, _("\n\
2104 For the options above, the following values are supported for \"ABI\":\n\
2106 for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++)
2107 fprintf (stream, " %s", mips_abi_choices[i].name);
2108 fprintf (stream, _("\n"));
2110 fprintf (stream, _("\n\
2111 For the options above, The following values are supported for \"ARCH\":\n\
2113 for (i = 0; i < ARRAY_SIZE (mips_arch_choices); i++)
2114 if (*mips_arch_choices[i].name != '\0')
2115 fprintf (stream, " %s", mips_arch_choices[i].name);
2116 fprintf (stream, _("\n"));
2118 fprintf (stream, _("\n"));