OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [opcodes/] [mips-dis.c] - Blame information for rev 844

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 24 jeremybenn 
/* Print mips instructions for GDB, the GNU debugger, or for objdump.
2 
   Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 225 jeremybenn 
   2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009
4 24 jeremybenn 
   Free Software Foundation, Inc.
5 
   Contributed by Nobuyuki Hikichi(hikichi@sra.co.jp).
6 
 
7 
   This file is part of the GNU opcodes library.
8 
 
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)
12 
   any later version.
13 
 
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.
18 
 
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.  */
23 
 
24 
#include "sysdep.h"
25 
#include "dis-asm.h"
26 
#include "libiberty.h"
27 
#include "opcode/mips.h"
28 
#include "opintl.h"
29 
 
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.  */
34 
 
35 
#if !defined(EMBEDDED_ENV)
36 
#define SYMTAB_AVAILABLE 1
37 
#include "elf-bfd.h"
38 
#include "elf/mips.h"
39 
#endif
40 
 
41 
/* Mips instructions are at maximum this many bytes long.  */
42 
#define INSNLEN 4
43 
 
44 
 
45 
/* FIXME: These should be shared with gdb somehow.  */
46 
 
47 
struct mips_cp0sel_name
48 
{
49 
  unsigned int cp0reg;
50 
  unsigned int sel;
51 
  const char * const name;
52 
};
53 
 
54 
/* The mips16 registers.  */
55 
static const unsigned int mips16_to_32_reg_map[] =
56 
{
57 
  16, 17, 2, 3, 4, 5, 6, 7
58 
};
59 
 
60 
#define mips16_reg_names(rn)    mips_gpr_names[mips16_to_32_reg_map[rn]]
61 
 
62 
 
63 
static const char * const mips_gpr_names_numeric[32] =
64 
{
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"
69 
};
70 
 
71 
static const char * const mips_gpr_names_oldabi[32] =
72 
{
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"
77 
};
78 
 
79 
static const char * const mips_gpr_names_newabi[32] =
80 
{
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"
85 
};
86 
 
87 
static const char * const mips_fpr_names_numeric[32] =
88 
{
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"
93 
};
94 
 
95 
static const char * const mips_fpr_names_32[32] =
96 
{
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"
101 
};
102 
 
103 
static const char * const mips_fpr_names_n32[32] =
104 
{
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"
109 
};
110 
 
111 
static const char * const mips_fpr_names_64[32] =
112 
{
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"
117 
};
118 
 
119 
static const char * const mips_cp0_names_numeric[32] =
120 
{
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"
125 
};
126 
 
127 
static const char * const mips_cp0_names_r3000[32] =
128 
{
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",
137 
};
138 
 
139 
static const char * const mips_cp0_names_r4000[32] =
140 
{
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",
149 
};
150 
 
151 
static const char * const mips_cp0_names_mips3264[32] =
152 
{
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",
161 
};
162 
 
163 
static const struct mips_cp0sel_name mips_cp0sel_names_mips3264[] =
164 
{
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"          }
194 
};
195 
 
196 
static const char * const mips_cp0_names_mips3264r2[32] =
197 
{
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",
206 
};
207 
 
208 
static const struct mips_cp0sel_name mips_cp0sel_names_mips3264r2[] =
209 
{
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"         },
282 
};
283 
 
284 
/* SB-1: MIPS64 (mips_cp0_names_mips3264) with minor mods.  */
285 
static const char * const mips_cp0_names_sb1[32] =
286 
{
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",
295 
};
296 
 
297 
static const struct mips_cp0sel_name mips_cp0sel_names_sb1[] =
298 
{
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"        },
320 
};
321 
 
322 225 jeremybenn 
/* Xlr cop0 register names.  */
323 
static const char * const mips_cp0_names_xlr[32] = {
324 
  "c0_index",     "c0_random",    "c0_entrylo0",  "c0_entrylo1",
325 
  "c0_context",   "c0_pagemask",  "c0_wired",     "$7",
326 
  "c0_badvaddr",  "c0_count",     "c0_entryhi",   "c0_compare",
327 
  "c0_status",    "c0_cause",     "c0_epc",       "c0_prid",
328 
  "c0_config",    "c0_lladdr",    "c0_watchlo",   "c0_watchhi",
329 
  "c0_xcontext",  "$21",          "$22",          "c0_debug",
330 
  "c0_depc",      "c0_perfcnt",   "c0_errctl",    "c0_cacheerr_i",
331 
  "c0_taglo_i",   "c0_taghi_i",   "c0_errorepc",  "c0_desave",
332 
};
333 
 
334 
/* XLR's CP0 Select Registers.  */
335 
 
336 
static const struct mips_cp0sel_name mips_cp0sel_names_xlr[] = {
337 
  {  9, 6, "c0_extintreq"       },
338 
  {  9, 7, "c0_extintmask"      },
339 
  { 15, 1, "c0_ebase"           },
340 
  { 16, 1, "c0_config1"         },
341 
  { 16, 2, "c0_config2"         },
342 
  { 16, 3, "c0_config3"         },
343 
  { 16, 7, "c0_procid2"         },
344 
  { 18, 1, "c0_watchlo,1"       },
345 
  { 18, 2, "c0_watchlo,2"       },
346 
  { 18, 3, "c0_watchlo,3"       },
347 
  { 18, 4, "c0_watchlo,4"       },
348 
  { 18, 5, "c0_watchlo,5"       },
349 
  { 18, 6, "c0_watchlo,6"       },
350 
  { 18, 7, "c0_watchlo,7"       },
351 
  { 19, 1, "c0_watchhi,1"       },
352 
  { 19, 2, "c0_watchhi,2"       },
353 
  { 19, 3, "c0_watchhi,3"       },
354 
  { 19, 4, "c0_watchhi,4"       },
355 
  { 19, 5, "c0_watchhi,5"       },
356 
  { 19, 6, "c0_watchhi,6"       },
357 
  { 19, 7, "c0_watchhi,7"       },
358 
  { 25, 1, "c0_perfcnt,1"       },
359 
  { 25, 2, "c0_perfcnt,2"       },
360 
  { 25, 3, "c0_perfcnt,3"       },
361 
  { 25, 4, "c0_perfcnt,4"       },
362 
  { 25, 5, "c0_perfcnt,5"       },
363 
  { 25, 6, "c0_perfcnt,6"       },
364 
  { 25, 7, "c0_perfcnt,7"       },
365 
  { 27, 1, "c0_cacheerr,1"      },
366 
  { 27, 2, "c0_cacheerr,2"      },
367 
  { 27, 3, "c0_cacheerr,3"      },
368 
  { 28, 1, "c0_datalo"          },
369 
  { 29, 1, "c0_datahi"          }
370 
};
371 
 
372 24 jeremybenn 
static const char * const mips_hwr_names_numeric[32] =
373 
{
374 
  "$0",   "$1",   "$2",   "$3",   "$4",   "$5",   "$6",   "$7",
375 
  "$8",   "$9",   "$10",  "$11",  "$12",  "$13",  "$14",  "$15",
376 
  "$16",  "$17",  "$18",  "$19",  "$20",  "$21",  "$22",  "$23",
377 
  "$24",  "$25",  "$26",  "$27",  "$28",  "$29",  "$30",  "$31"
378 
};
379 
 
380 
static const char * const mips_hwr_names_mips3264r2[32] =
381 
{
382 
  "hwr_cpunum",   "hwr_synci_step", "hwr_cc",     "hwr_ccres",
383 
  "$4",          "$5",            "$6",           "$7",
384 
  "$8",   "$9",   "$10",  "$11",  "$12",  "$13",  "$14",  "$15",
385 
  "$16",  "$17",  "$18",  "$19",  "$20",  "$21",  "$22",  "$23",
386 
  "$24",  "$25",  "$26",  "$27",  "$28",  "$29",  "$30",  "$31"
387 
};
388 
 
389 
struct mips_abi_choice
390 
{
391 
  const char * name;
392 
  const char * const *gpr_names;
393 
  const char * const *fpr_names;
394 
};
395 
 
396 
struct mips_abi_choice mips_abi_choices[] =
397 
{
398 
  { "numeric", mips_gpr_names_numeric, mips_fpr_names_numeric },
399 
  { "32", mips_gpr_names_oldabi, mips_fpr_names_32 },
400 
  { "n32", mips_gpr_names_newabi, mips_fpr_names_n32 },
401 
  { "64", mips_gpr_names_newabi, mips_fpr_names_64 },
402 
};
403 
 
404 
struct mips_arch_choice
405 
{
406 
  const char *name;
407 
  int bfd_mach_valid;
408 
  unsigned long bfd_mach;
409 
  int processor;
410 
  int isa;
411 
  const char * const *cp0_names;
412 
  const struct mips_cp0sel_name *cp0sel_names;
413 
  unsigned int cp0sel_names_len;
414 
  const char * const *hwr_names;
415 
};
416 
 
417 
const struct mips_arch_choice mips_arch_choices[] =
418 
{
419 
  { "numeric",  0, 0, 0, 0,
420 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
421 
 
422 
  { "r3000",    1, bfd_mach_mips3000, CPU_R3000, ISA_MIPS1,
423 
    mips_cp0_names_r3000, NULL, 0, mips_hwr_names_numeric },
424 
  { "r3900",    1, bfd_mach_mips3900, CPU_R3900, ISA_MIPS1,
425 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
426 
  { "r4000",    1, bfd_mach_mips4000, CPU_R4000, ISA_MIPS3,
427 
    mips_cp0_names_r4000, NULL, 0, mips_hwr_names_numeric },
428 
  { "r4010",    1, bfd_mach_mips4010, CPU_R4010, ISA_MIPS2,
429 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
430 
  { "vr4100",   1, bfd_mach_mips4100, CPU_VR4100, ISA_MIPS3,
431 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
432 
  { "vr4111",   1, bfd_mach_mips4111, CPU_R4111, ISA_MIPS3,
433 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
434 
  { "vr4120",   1, bfd_mach_mips4120, CPU_VR4120, ISA_MIPS3,
435 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
436 
  { "r4300",    1, bfd_mach_mips4300, CPU_R4300, ISA_MIPS3,
437 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
438 
  { "r4400",    1, bfd_mach_mips4400, CPU_R4400, ISA_MIPS3,
439 
    mips_cp0_names_r4000, NULL, 0, mips_hwr_names_numeric },
440 
  { "r4600",    1, bfd_mach_mips4600, CPU_R4600, ISA_MIPS3,
441 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
442 
  { "r4650",    1, bfd_mach_mips4650, CPU_R4650, ISA_MIPS3,
443 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
444 
  { "r5000",    1, bfd_mach_mips5000, CPU_R5000, ISA_MIPS4,
445 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
446 
  { "vr5400",   1, bfd_mach_mips5400, CPU_VR5400, ISA_MIPS4,
447 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
448 
  { "vr5500",   1, bfd_mach_mips5500, CPU_VR5500, ISA_MIPS4,
449 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
450 
  { "r6000",    1, bfd_mach_mips6000, CPU_R6000, ISA_MIPS2,
451 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
452 
  { "rm7000",   1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4,
453 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
454 
  { "rm9000",   1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4,
455 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
456 
  { "r8000",    1, bfd_mach_mips8000, CPU_R8000, ISA_MIPS4,
457 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
458 
  { "r10000",   1, bfd_mach_mips10000, CPU_R10000, ISA_MIPS4,
459 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
460 
  { "r12000",   1, bfd_mach_mips12000, CPU_R12000, ISA_MIPS4,
461 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
462 225 jeremybenn 
  { "r14000",   1, bfd_mach_mips14000, CPU_R14000, ISA_MIPS4,
463 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
464 
  { "r16000",   1, bfd_mach_mips16000, CPU_R16000, ISA_MIPS4,
465 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
466 24 jeremybenn 
  { "mips5",    1, bfd_mach_mips5, CPU_MIPS5, ISA_MIPS5,
467 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
468 
 
469 
  /* For stock MIPS32, disassemble all applicable MIPS-specified ASEs.
470 
     Note that MIPS-3D and MDMX are not applicable to MIPS32.  (See
471 
     _MIPS32 Architecture For Programmers Volume I: Introduction to the
472 
     MIPS32 Architecture_ (MIPS Document Number MD00082, Revision 0.95),
473 
     page 1.  */
474 
  { "mips32",   1, bfd_mach_mipsisa32, CPU_MIPS32,
475 
    ISA_MIPS32 | INSN_MIPS16 | INSN_SMARTMIPS,
476 
    mips_cp0_names_mips3264,
477 
    mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
478 
    mips_hwr_names_numeric },
479 
 
480 
  { "mips32r2", 1, bfd_mach_mipsisa32r2, CPU_MIPS32R2,
481 
    (ISA_MIPS32R2 | INSN_MIPS16 | INSN_SMARTMIPS | INSN_DSP | INSN_DSPR2
482 
     | INSN_MIPS3D | INSN_MT),
483 
    mips_cp0_names_mips3264r2,
484 
    mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
485 
    mips_hwr_names_mips3264r2 },
486 
 
487 
  /* For stock MIPS64, disassemble all applicable MIPS-specified ASEs.  */
488 
  { "mips64",   1, bfd_mach_mipsisa64, CPU_MIPS64,
489 
    ISA_MIPS64 | INSN_MIPS16 | INSN_MIPS3D | INSN_MDMX,
490 
    mips_cp0_names_mips3264,
491 
    mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
492 
    mips_hwr_names_numeric },
493 
 
494 
  { "mips64r2", 1, bfd_mach_mipsisa64r2, CPU_MIPS64R2,
495 
    (ISA_MIPS64R2 | INSN_MIPS16 | INSN_MIPS3D | INSN_DSP | INSN_DSPR2
496 
     | INSN_DSP64 | INSN_MT | INSN_MDMX),
497 
    mips_cp0_names_mips3264r2,
498 
    mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
499 
    mips_hwr_names_mips3264r2 },
500 
 
501 
  { "sb1",      1, bfd_mach_mips_sb1, CPU_SB1,
502 
    ISA_MIPS64 | INSN_MIPS3D | INSN_SB1,
503 
    mips_cp0_names_sb1,
504 
    mips_cp0sel_names_sb1, ARRAY_SIZE (mips_cp0sel_names_sb1),
505 
    mips_hwr_names_numeric },
506 
 
507 
  { "loongson2e",   1, bfd_mach_mips_loongson_2e, CPU_LOONGSON_2E,
508 
    ISA_MIPS3 | INSN_LOONGSON_2E, mips_cp0_names_numeric,
509 
    NULL, 0, mips_hwr_names_numeric },
510 
 
511 
  { "loongson2f",   1, bfd_mach_mips_loongson_2f, CPU_LOONGSON_2F,
512 
    ISA_MIPS3 | INSN_LOONGSON_2F, mips_cp0_names_numeric,
513 
    NULL, 0, mips_hwr_names_numeric },
514 
 
515 
  { "octeon",   1, bfd_mach_mips_octeon, CPU_OCTEON,
516 
    ISA_MIPS64R2 | INSN_OCTEON, mips_cp0_names_numeric, NULL, 0,
517 
    mips_hwr_names_numeric },
518 
 
519 225 jeremybenn 
  { "xlr", 1, bfd_mach_mips_xlr, CPU_XLR,
520 
    ISA_MIPS64 | INSN_XLR,
521 
    mips_cp0_names_xlr,
522 
    mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr),
523 
    mips_hwr_names_numeric },
524 
 
525 24 jeremybenn 
  /* This entry, mips16, is here only for ISA/processor selection; do
526 
     not print its name.  */
527 
  { "",         1, bfd_mach_mips16, CPU_MIPS16, ISA_MIPS3 | INSN_MIPS16,
528 
    mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
529 
};
530 
 
531 
/* ISA and processor type to disassemble for, and register names to use.
532 
   set_default_mips_dis_options and parse_mips_dis_options fill in these
533 
   values.  */
534 
static int mips_processor;
535 
static int mips_isa;
536 
static const char * const *mips_gpr_names;
537 
static const char * const *mips_fpr_names;
538 
static const char * const *mips_cp0_names;
539 
static const struct mips_cp0sel_name *mips_cp0sel_names;
540 
static int mips_cp0sel_names_len;
541 
static const char * const *mips_hwr_names;
542 
 
543 
/* Other options */
544 
static int no_aliases;  /* If set disassemble as most general inst.  */
545 
 
546 
static const struct mips_abi_choice *
547 
choose_abi_by_name (const char *name, unsigned int namelen)
548 
{
549 
  const struct mips_abi_choice *c;
550 
  unsigned int i;
551 
 
552 
  for (i = 0, c = NULL; i < ARRAY_SIZE (mips_abi_choices) && c == NULL; i++)
553 
    if (strncmp (mips_abi_choices[i].name, name, namelen) == 0
554 
        && strlen (mips_abi_choices[i].name) == namelen)
555 
      c = &mips_abi_choices[i];
556 
 
557 
  return c;
558 
}
559 
 
560 
static const struct mips_arch_choice *
561 
choose_arch_by_name (const char *name, unsigned int namelen)
562 
{
563 
  const struct mips_arch_choice *c = NULL;
564 
  unsigned int i;
565 
 
566 
  for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
567 
    if (strncmp (mips_arch_choices[i].name, name, namelen) == 0
568 
        && strlen (mips_arch_choices[i].name) == namelen)
569 
      c = &mips_arch_choices[i];
570 
 
571 
  return c;
572 
}
573 
 
574 
static const struct mips_arch_choice *
575 
choose_arch_by_number (unsigned long mach)
576 
{
577 
  static unsigned long hint_bfd_mach;
578 
  static const struct mips_arch_choice *hint_arch_choice;
579 
  const struct mips_arch_choice *c;
580 
  unsigned int i;
581 
 
582 
  /* We optimize this because even if the user specifies no
583 
     flags, this will be done for every instruction!  */
584 
  if (hint_bfd_mach == mach
585 
      && hint_arch_choice != NULL
586 
      && hint_arch_choice->bfd_mach == hint_bfd_mach)
587 
    return hint_arch_choice;
588 
 
589 
  for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
590 
    {
591 
      if (mips_arch_choices[i].bfd_mach_valid
592 
          && mips_arch_choices[i].bfd_mach == mach)
593 
        {
594 
          c = &mips_arch_choices[i];
595 
          hint_bfd_mach = mach;
596 
          hint_arch_choice = c;
597 
        }
598 
    }
599 
  return c;
600 
}
601 
 
602 
/* Check if the object uses NewABI conventions.  */
603 
 
604 
static int
605 
is_newabi (Elf_Internal_Ehdr *header)
606 
{
607 
  /* There are no old-style ABIs which use 64-bit ELF.  */
608 
  if (header->e_ident[EI_CLASS] == ELFCLASS64)
609 
    return 1;
610 
 
611 
  /* If a 32-bit ELF file, n32 is a new-style ABI.  */
612 
  if ((header->e_flags & EF_MIPS_ABI2) != 0)
613 
    return 1;
614 
 
615 
  return 0;
616 
}
617 
 
618 
static void
619 
set_default_mips_dis_options (struct disassemble_info *info)
620 
{
621 
  const struct mips_arch_choice *chosen_arch;
622 
 
623 
  /* Defaults: mipsIII/r3000 (?!), (o)32-style ("oldabi") GPR names,
624 
     and numeric FPR, CP0 register, and HWR names.  */
625 
  mips_isa = ISA_MIPS3;
626 
  mips_processor =  CPU_R3000;
627 
  mips_gpr_names = mips_gpr_names_oldabi;
628 
  mips_fpr_names = mips_fpr_names_numeric;
629 
  mips_cp0_names = mips_cp0_names_numeric;
630 
  mips_cp0sel_names = NULL;
631 
  mips_cp0sel_names_len = 0;
632 
  mips_hwr_names = mips_hwr_names_numeric;
633 
  no_aliases = 0;
634 
 
635 
  /* If an ELF "newabi" binary, use the n32/(n)64 GPR names.  */
636 
  if (info->flavour == bfd_target_elf_flavour && info->section != NULL)
637 
    {
638 
      Elf_Internal_Ehdr *header;
639 
 
640 
      header = elf_elfheader (info->section->owner);
641 
      if (is_newabi (header))
642 
        mips_gpr_names = mips_gpr_names_newabi;
643 
    }
644 
 
645 
  /* Set ISA, architecture, and cp0 register names as best we can.  */
646 
#if ! SYMTAB_AVAILABLE
647 
  /* This is running out on a target machine, not in a host tool.
648 
     FIXME: Where does mips_target_info come from?  */
649 
  target_processor = mips_target_info.processor;
650 
  mips_isa = mips_target_info.isa;
651 
#else
652 
  chosen_arch = choose_arch_by_number (info->mach);
653 
  if (chosen_arch != NULL)
654 
    {
655 
      mips_processor = chosen_arch->processor;
656 
      mips_isa = chosen_arch->isa;
657 
      mips_cp0_names = chosen_arch->cp0_names;
658 
      mips_cp0sel_names = chosen_arch->cp0sel_names;
659 
      mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
660 
      mips_hwr_names = chosen_arch->hwr_names;
661 
    }
662 
#endif
663 
}
664 
 
665 
static void
666 
parse_mips_dis_option (const char *option, unsigned int len)
667 
{
668 
  unsigned int i, optionlen, vallen;
669 
  const char *val;
670 
  const struct mips_abi_choice *chosen_abi;
671 
  const struct mips_arch_choice *chosen_arch;
672 
 
673 
  /* Try to match options that are simple flags */
674 
  if (CONST_STRNEQ (option, "no-aliases"))
675 
    {
676 
      no_aliases = 1;
677 
      return;
678 
    }
679 
 
680 
  /* Look for the = that delimits the end of the option name.  */
681 
  for (i = 0; i < len; i++)
682 
    if (option[i] == '=')
683 
      break;
684 
 
685 
  if (i == 0)            /* Invalid option: no name before '='.  */
686 
    return;
687 
  if (i == len)         /* Invalid option: no '='.  */
688 
    return;
689 
  if (i == (len - 1))   /* Invalid option: no value after '='.  */
690 
    return;
691 
 
692 
  optionlen = i;
693 
  val = option + (optionlen + 1);
694 
  vallen = len - (optionlen + 1);
695 
 
696 
  if (strncmp ("gpr-names", option, optionlen) == 0
697 
      && strlen ("gpr-names") == optionlen)
698 
    {
699 
      chosen_abi = choose_abi_by_name (val, vallen);
700 
      if (chosen_abi != NULL)
701 
        mips_gpr_names = chosen_abi->gpr_names;
702 
      return;
703 
    }
704 
 
705 
  if (strncmp ("fpr-names", option, optionlen) == 0
706 
      && strlen ("fpr-names") == optionlen)
707 
    {
708 
      chosen_abi = choose_abi_by_name (val, vallen);
709 
      if (chosen_abi != NULL)
710 
        mips_fpr_names = chosen_abi->fpr_names;
711 
      return;
712 
    }
713 
 
714 
  if (strncmp ("cp0-names", option, optionlen) == 0
715 
      && strlen ("cp0-names") == optionlen)
716 
    {
717 
      chosen_arch = choose_arch_by_name (val, vallen);
718 
      if (chosen_arch != NULL)
719 
        {
720 
          mips_cp0_names = chosen_arch->cp0_names;
721 
          mips_cp0sel_names = chosen_arch->cp0sel_names;
722 
          mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
723 
        }
724 
      return;
725 
    }
726 
 
727 
  if (strncmp ("hwr-names", option, optionlen) == 0
728 
      && strlen ("hwr-names") == optionlen)
729 
    {
730 
      chosen_arch = choose_arch_by_name (val, vallen);
731 
      if (chosen_arch != NULL)
732 
        mips_hwr_names = chosen_arch->hwr_names;
733 
      return;
734 
    }
735 
 
736 
  if (strncmp ("reg-names", option, optionlen) == 0
737 
      && strlen ("reg-names") == optionlen)
738 
    {
739 
      /* We check both ABI and ARCH here unconditionally, so
740 
         that "numeric" will do the desirable thing: select
741 
         numeric register names for all registers.  Other than
742 
         that, a given name probably won't match both.  */
743 
      chosen_abi = choose_abi_by_name (val, vallen);
744 
      if (chosen_abi != NULL)
745 
        {
746 
          mips_gpr_names = chosen_abi->gpr_names;
747 
          mips_fpr_names = chosen_abi->fpr_names;
748 
        }
749 
      chosen_arch = choose_arch_by_name (val, vallen);
750 
      if (chosen_arch != NULL)
751 
        {
752 
          mips_cp0_names = chosen_arch->cp0_names;
753 
          mips_cp0sel_names = chosen_arch->cp0sel_names;
754 
          mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
755 
          mips_hwr_names = chosen_arch->hwr_names;
756 
        }
757 
      return;
758 
    }
759 
 
760 
  /* Invalid option.  */
761 
}
762 
 
763 
static void
764 
parse_mips_dis_options (const char *options)
765 
{
766 
  const char *option_end;
767 
 
768 
  if (options == NULL)
769 
    return;
770 
 
771 
  while (*options != '\0')
772 
    {
773 
      /* Skip empty options.  */
774 
      if (*options == ',')
775 
        {
776 
          options++;
777 
          continue;
778 
        }
779 
 
780 
      /* We know that *options is neither NUL or a comma.  */
781 
      option_end = options + 1;
782 
      while (*option_end != ',' && *option_end != '\0')
783 
        option_end++;
784 
 
785 
      parse_mips_dis_option (options, option_end - options);
786 
 
787 
      /* Go on to the next one.  If option_end points to a comma, it
788 
         will be skipped above.  */
789 
      options = option_end;
790 
    }
791 
}
792 
 
793 
static const struct mips_cp0sel_name *
794 
lookup_mips_cp0sel_name (const struct mips_cp0sel_name *names,
795 
                         unsigned int len,
796 
                         unsigned int cp0reg,
797 
                         unsigned int sel)
798 
{
799 
  unsigned int i;
800 
 
801 
  for (i = 0; i < len; i++)
802 
    if (names[i].cp0reg == cp0reg && names[i].sel == sel)
803 
      return &names[i];
804 
  return NULL;
805 
}
806 
 
807 
/* Print insn arguments for 32/64-bit code.  */
808 
 
809 
static void
810 
print_insn_args (const char *d,
811 
                 register unsigned long int l,
812 
                 bfd_vma pc,
813 
                 struct disassemble_info *info,
814 
                 const struct mips_opcode *opp)
815 
{
816 
  int op, delta;
817 
  unsigned int lsb, msb, msbd;
818 
 
819 
  lsb = 0;
820 
 
821 
  for (; *d != '\0'; d++)
822 
    {
823 
      switch (*d)
824 
        {
825 
        case ',':
826 
        case '(':
827 
        case ')':
828 
        case '[':
829 
        case ']':
830 
          (*info->fprintf_func) (info->stream, "%c", *d);
831 
          break;
832 
 
833 
        case '+':
834 
          /* Extension character; switch for second char.  */
835 
          d++;
836 
          switch (*d)
837 
            {
838 
            case '\0':
839 
              /* xgettext:c-format */
840 
              (*info->fprintf_func) (info->stream,
841 
                                     _("# internal error, incomplete extension sequence (+)"));
842 
              return;
843 
 
844 
            case 'A':
845 
              lsb = (l >> OP_SH_SHAMT) & OP_MASK_SHAMT;
846 
              (*info->fprintf_func) (info->stream, "0x%x", lsb);
847 
              break;
848 
 
849 
            case 'B':
850 
              msb = (l >> OP_SH_INSMSB) & OP_MASK_INSMSB;
851 
              (*info->fprintf_func) (info->stream, "0x%x", msb - lsb + 1);
852 
              break;
853 
 
854 
            case '1':
855 
              (*info->fprintf_func) (info->stream, "0x%lx",
856 
                                     (l >> OP_SH_UDI1) & OP_MASK_UDI1);
857 
              break;
858 
 
859 
            case '2':
860 
              (*info->fprintf_func) (info->stream, "0x%lx",
861 
                                     (l >> OP_SH_UDI2) & OP_MASK_UDI2);
862 
              break;
863 
 
864 
            case '3':
865 
              (*info->fprintf_func) (info->stream, "0x%lx",
866 
                                     (l >> OP_SH_UDI3) & OP_MASK_UDI3);
867 
              break;
868 
 
869 
            case '4':
870 
              (*info->fprintf_func) (info->stream, "0x%lx",
871 
                                     (l >> OP_SH_UDI4) & OP_MASK_UDI4);
872 
              break;
873 
 
874 
            case 'C':
875 
            case 'H':
876 
              msbd = (l >> OP_SH_EXTMSBD) & OP_MASK_EXTMSBD;
877 
              (*info->fprintf_func) (info->stream, "0x%x", msbd + 1);
878 
              break;
879 
 
880 
            case 'D':
881 
              {
882 
                const struct mips_cp0sel_name *n;
883 
                unsigned int cp0reg, sel;
884 
 
885 
                cp0reg = (l >> OP_SH_RD) & OP_MASK_RD;
886 
                sel = (l >> OP_SH_SEL) & OP_MASK_SEL;
887 
 
888 
                /* CP0 register including 'sel' code for mtcN (et al.), to be
889 
                   printed textually if known.  If not known, print both
890 
                   CP0 register name and sel numerically since CP0 register
891 
                   with sel 0 may have a name unrelated to register being
892 
                   printed.  */
893 
                n = lookup_mips_cp0sel_name(mips_cp0sel_names,
894 
                                            mips_cp0sel_names_len, cp0reg, sel);
895 
                if (n != NULL)
896 
                  (*info->fprintf_func) (info->stream, "%s", n->name);
897 
                else
898 
                  (*info->fprintf_func) (info->stream, "$%d,%d", cp0reg, sel);
899 
                break;
900 
              }
901 
 
902 
            case 'E':
903 
              lsb = ((l >> OP_SH_SHAMT) & OP_MASK_SHAMT) + 32;
904 
              (*info->fprintf_func) (info->stream, "0x%x", lsb);
905 
              break;
906 
 
907 
            case 'F':
908 
              msb = ((l >> OP_SH_INSMSB) & OP_MASK_INSMSB) + 32;
909 
              (*info->fprintf_func) (info->stream, "0x%x", msb - lsb + 1);
910 
              break;
911 
 
912 
            case 'G':
913 
              msbd = ((l >> OP_SH_EXTMSBD) & OP_MASK_EXTMSBD) + 32;
914 
              (*info->fprintf_func) (info->stream, "0x%x", msbd + 1);
915 
              break;
916 
 
917 
            case 't': /* Coprocessor 0 reg name */
918 
              (*info->fprintf_func) (info->stream, "%s",
919 
                                     mips_cp0_names[(l >> OP_SH_RT) &
920 
                                                     OP_MASK_RT]);
921 
              break;
922 
 
923 
            case 'T': /* Coprocessor 0 reg name */
924 
              {
925 
                const struct mips_cp0sel_name *n;
926 
                unsigned int cp0reg, sel;
927 
 
928 
                cp0reg = (l >> OP_SH_RT) & OP_MASK_RT;
929 
                sel = (l >> OP_SH_SEL) & OP_MASK_SEL;
930 
 
931 
                /* CP0 register including 'sel' code for mftc0, to be
932 
                   printed textually if known.  If not known, print both
933 
                   CP0 register name and sel numerically since CP0 register
934 
                   with sel 0 may have a name unrelated to register being
935 
                   printed.  */
936 
                n = lookup_mips_cp0sel_name(mips_cp0sel_names,
937 
                                            mips_cp0sel_names_len, cp0reg, sel);
938 
                if (n != NULL)
939 
                  (*info->fprintf_func) (info->stream, "%s", n->name);
940 
                else
941 
                  (*info->fprintf_func) (info->stream, "$%d,%d", cp0reg, sel);
942 
                break;
943 
              }
944 
 
945 225 jeremybenn 
            case 'x':           /* bbit bit index */
946 
              (*info->fprintf_func) (info->stream, "0x%lx",
947 
                                     (l >> OP_SH_BBITIND) & OP_MASK_BBITIND);
948 
              break;
949 
 
950 
            case 'p':           /* cins, cins32, exts and exts32 position */
951 
              (*info->fprintf_func) (info->stream, "0x%lx",
952 
                                     (l >> OP_SH_CINSPOS) & OP_MASK_CINSPOS);
953 
              break;
954 
 
955 
            case 's':           /* cins and exts length-minus-one */
956 
              (*info->fprintf_func) (info->stream, "0x%lx",
957 
                                     (l >> OP_SH_CINSLM1) & OP_MASK_CINSLM1);
958 
              break;
959 
 
960 
            case 'S':           /* cins32 and exts32 length-minus-one field */
961 
              (*info->fprintf_func) (info->stream, "0x%lx",
962 
                                     (l >> OP_SH_CINSLM1) & OP_MASK_CINSLM1);
963 
              break;
964 
 
965 
            case 'Q':           /* seqi/snei immediate field */
966 
              op = (l >> OP_SH_SEQI) & OP_MASK_SEQI;
967 
              /* Sign-extend it.  */
968 
              op = (op ^ 512) - 512;
969 
              (*info->fprintf_func) (info->stream, "%d", op);
970 
              break;
971 
 
972 24 jeremybenn 
            default:
973 
              /* xgettext:c-format */
974 
              (*info->fprintf_func) (info->stream,
975 
                                     _("# internal error, undefined extension sequence (+%c)"),
976 
                                     *d);
977 
              return;
978 
            }
979 
          break;
980 
 
981 
        case '2':
982 
          (*info->fprintf_func) (info->stream, "0x%lx",
983 
                                 (l >> OP_SH_BP) & OP_MASK_BP);
984 
          break;
985 
 
986 
        case '3':
987 
          (*info->fprintf_func) (info->stream, "0x%lx",
988 
                                 (l >> OP_SH_SA3) & OP_MASK_SA3);
989 
          break;
990 
 
991 
        case '4':
992 
          (*info->fprintf_func) (info->stream, "0x%lx",
993 
                                 (l >> OP_SH_SA4) & OP_MASK_SA4);
994 
          break;
995 
 
996 
        case '5':
997 
          (*info->fprintf_func) (info->stream, "0x%lx",
998 
                                 (l >> OP_SH_IMM8) & OP_MASK_IMM8);
999 
          break;
1000 
 
1001 
        case '6':
1002 
          (*info->fprintf_func) (info->stream, "0x%lx",
1003 
                                 (l >> OP_SH_RS) & OP_MASK_RS);
1004 
          break;
1005 
 
1006 
        case '7':
1007 
          (*info->fprintf_func) (info->stream, "$ac%ld",
1008 
                                 (l >> OP_SH_DSPACC) & OP_MASK_DSPACC);
1009 
          break;
1010 
 
1011 
        case '8':
1012 
          (*info->fprintf_func) (info->stream, "0x%lx",
1013 
                                 (l >> OP_SH_WRDSP) & OP_MASK_WRDSP);
1014 
          break;
1015 
 
1016 
        case '9':
1017 
          (*info->fprintf_func) (info->stream, "$ac%ld",
1018 
                                 (l >> OP_SH_DSPACC_S) & OP_MASK_DSPACC_S);
1019 
          break;
1020 
 
1021 
        case '0': /* dsp 6-bit signed immediate in bit 20 */
1022 
          delta = ((l >> OP_SH_DSPSFT) & OP_MASK_DSPSFT);
1023 
          if (delta & 0x20) /* test sign bit */
1024 
            delta |= ~OP_MASK_DSPSFT;
1025 
          (*info->fprintf_func) (info->stream, "%d", delta);
1026 
          break;
1027 
 
1028 
        case ':': /* dsp 7-bit signed immediate in bit 19 */
1029 
          delta = ((l >> OP_SH_DSPSFT_7) & OP_MASK_DSPSFT_7);
1030 
          if (delta & 0x40) /* test sign bit */
1031 
            delta |= ~OP_MASK_DSPSFT_7;
1032 
          (*info->fprintf_func) (info->stream, "%d", delta);
1033 
          break;
1034 
 
1035 
        case '\'':
1036 
          (*info->fprintf_func) (info->stream, "0x%lx",
1037 
                                 (l >> OP_SH_RDDSP) & OP_MASK_RDDSP);
1038 
          break;
1039 
 
1040 
        case '@': /* dsp 10-bit signed immediate in bit 16 */
1041 
          delta = ((l >> OP_SH_IMM10) & OP_MASK_IMM10);
1042 
          if (delta & 0x200) /* test sign bit */
1043 
            delta |= ~OP_MASK_IMM10;
1044 
          (*info->fprintf_func) (info->stream, "%d", delta);
1045 
          break;
1046 
 
1047 
        case '!':
1048 
          (*info->fprintf_func) (info->stream, "%ld",
1049 
                                 (l >> OP_SH_MT_U) & OP_MASK_MT_U);
1050 
          break;
1051 
 
1052 
        case '$':
1053 
          (*info->fprintf_func) (info->stream, "%ld",
1054 
                                 (l >> OP_SH_MT_H) & OP_MASK_MT_H);
1055 
          break;
1056 
 
1057 
        case '*':
1058 
          (*info->fprintf_func) (info->stream, "$ac%ld",
1059 
                                 (l >> OP_SH_MTACC_T) & OP_MASK_MTACC_T);
1060 
          break;
1061 
 
1062 
        case '&':
1063 
          (*info->fprintf_func) (info->stream, "$ac%ld",
1064 
                                 (l >> OP_SH_MTACC_D) & OP_MASK_MTACC_D);
1065 
          break;
1066 
 
1067 
        case 'g':
1068 
          /* Coprocessor register for CTTC1, MTTC2, MTHC2, CTTC2.  */
1069 
          (*info->fprintf_func) (info->stream, "$%ld",
1070 
                                 (l >> OP_SH_RD) & OP_MASK_RD);
1071 
          break;
1072 
 
1073 
        case 's':
1074 
        case 'b':
1075 
        case 'r':
1076 
        case 'v':
1077 
          (*info->fprintf_func) (info->stream, "%s",
1078 
                                 mips_gpr_names[(l >> OP_SH_RS) & OP_MASK_RS]);
1079 
          break;
1080 
 
1081 
        case 't':
1082 
        case 'w':
1083 
          (*info->fprintf_func) (info->stream, "%s",
1084 
                                 mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
1085 
          break;
1086 
 
1087 
        case 'i':
1088 
        case 'u':
1089 
          (*info->fprintf_func) (info->stream, "0x%lx",
1090 
                                 (l >> OP_SH_IMMEDIATE) & OP_MASK_IMMEDIATE);
1091 
          break;
1092 
 
1093 
        case 'j': /* Same as i, but sign-extended.  */
1094 
        case 'o':
1095 
          delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA;
1096 
          if (delta & 0x8000)
1097 
            delta |= ~0xffff;
1098 
          (*info->fprintf_func) (info->stream, "%d",
1099 
                                 delta);
1100 
          break;
1101 
 
1102 
        case 'h':
1103 
          (*info->fprintf_func) (info->stream, "0x%x",
1104 
                                 (unsigned int) ((l >> OP_SH_PREFX)
1105 
                                                 & OP_MASK_PREFX));
1106 
          break;
1107 
 
1108 
        case 'k':
1109 
          (*info->fprintf_func) (info->stream, "0x%x",
1110 
                                 (unsigned int) ((l >> OP_SH_CACHE)
1111 
                                                 & OP_MASK_CACHE));
1112 
          break;
1113 
 
1114 
        case 'a':
1115 
          info->target = (((pc + 4) & ~(bfd_vma) 0x0fffffff)
1116 
                          | (((l >> OP_SH_TARGET) & OP_MASK_TARGET) << 2));
1117 
          /* For gdb disassembler, force odd address on jalx.  */
1118 
          if (info->flavour == bfd_target_unknown_flavour
1119 
              && strcmp (opp->name, "jalx") == 0)
1120 
            info->target |= 1;
1121 
          (*info->print_address_func) (info->target, info);
1122 
          break;
1123 
 
1124 
        case 'p':
1125 
          /* Sign extend the displacement.  */
1126 
          delta = (l >> OP_SH_DELTA) & OP_MASK_DELTA;
1127 
          if (delta & 0x8000)
1128 
            delta |= ~0xffff;
1129 
          info->target = (delta << 2) + pc + INSNLEN;
1130 
          (*info->print_address_func) (info->target, info);
1131 
          break;
1132 
 
1133 
        case 'd':
1134 
          (*info->fprintf_func) (info->stream, "%s",
1135 
                                 mips_gpr_names[(l >> OP_SH_RD) & OP_MASK_RD]);
1136 
          break;
1137 
 
1138 
        case 'U':
1139 
          {
1140 
            /* First check for both rd and rt being equal.  */
1141 
            unsigned int reg = (l >> OP_SH_RD) & OP_MASK_RD;
1142 
            if (reg == ((l >> OP_SH_RT) & OP_MASK_RT))
1143 
              (*info->fprintf_func) (info->stream, "%s",
1144 
                                     mips_gpr_names[reg]);
1145 
            else
1146 
              {
1147 
                /* If one is zero use the other.  */
1148 
                if (reg == 0)
1149 
                  (*info->fprintf_func) (info->stream, "%s",
1150 
                                         mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
1151 
                else if (((l >> OP_SH_RT) & OP_MASK_RT) == 0)
1152 
                  (*info->fprintf_func) (info->stream, "%s",
1153 
                                         mips_gpr_names[reg]);
1154 
                else /* Bogus, result depends on processor.  */
1155 
                  (*info->fprintf_func) (info->stream, "%s or %s",
1156 
                                         mips_gpr_names[reg],
1157 
                                         mips_gpr_names[(l >> OP_SH_RT) & OP_MASK_RT]);
1158 
              }
1159 
          }
1160 
          break;
1161 
 
1162 
        case 'z':
1163 
          (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]);
1164 
          break;
1165 
 
1166 
        case '<':
1167 225 jeremybenn 
        case '1':
1168 24 jeremybenn 
          (*info->fprintf_func) (info->stream, "0x%lx",
1169 
                                 (l >> OP_SH_SHAMT) & OP_MASK_SHAMT);
1170 
          break;
1171 
 
1172 
        case 'c':
1173 
          (*info->fprintf_func) (info->stream, "0x%lx",
1174 
                                 (l >> OP_SH_CODE) & OP_MASK_CODE);
1175 
          break;
1176 
 
1177 
        case 'q':
1178 
          (*info->fprintf_func) (info->stream, "0x%lx",
1179 
                                 (l >> OP_SH_CODE2) & OP_MASK_CODE2);
1180 
          break;
1181 
 
1182 
        case 'C':
1183 
          (*info->fprintf_func) (info->stream, "0x%lx",
1184 
                                 (l >> OP_SH_COPZ) & OP_MASK_COPZ);
1185 
          break;
1186 
 
1187 
        case 'B':
1188 
          (*info->fprintf_func) (info->stream, "0x%lx",
1189 
 
1190 
                                 (l >> OP_SH_CODE20) & OP_MASK_CODE20);
1191 
          break;
1192 
 
1193 
        case 'J':
1194 
          (*info->fprintf_func) (info->stream, "0x%lx",
1195 
                                 (l >> OP_SH_CODE19) & OP_MASK_CODE19);
1196 
          break;
1197 
 
1198 
        case 'S':
1199 
        case 'V':
1200 
          (*info->fprintf_func) (info->stream, "%s",
1201 
                                 mips_fpr_names[(l >> OP_SH_FS) & OP_MASK_FS]);
1202 
          break;
1203 
 
1204 
        case 'T':
1205 
        case 'W':
1206 
          (*info->fprintf_func) (info->stream, "%s",
1207 
                                 mips_fpr_names[(l >> OP_SH_FT) & OP_MASK_FT]);
1208 
          break;
1209 
 
1210 
        case 'D':
1211 
          (*info->fprintf_func) (info->stream, "%s",
1212 
                                 mips_fpr_names[(l >> OP_SH_FD) & OP_MASK_FD]);
1213 
          break;
1214 
 
1215 
        case 'R':
1216 
          (*info->fprintf_func) (info->stream, "%s",
1217 
                                 mips_fpr_names[(l >> OP_SH_FR) & OP_MASK_FR]);
1218 
          break;
1219 
 
1220 
        case 'E':
1221 
          /* Coprocessor register for lwcN instructions, et al.
1222 
 
1223 
             Note that there is no load/store cp0 instructions, and
1224 
             that FPU (cp1) instructions disassemble this field using
1225 
             'T' format.  Therefore, until we gain understanding of
1226 
             cp2 register names, we can simply print the register
1227 
             numbers.  */
1228 
          (*info->fprintf_func) (info->stream, "$%ld",
1229 
                                 (l >> OP_SH_RT) & OP_MASK_RT);
1230 
          break;
1231 
 
1232 
        case 'G':
1233 
          /* Coprocessor register for mtcN instructions, et al.  Note
1234 
             that FPU (cp1) instructions disassemble this field using
1235 
             'S' format.  Therefore, we only need to worry about cp0,
1236 
             cp2, and cp3.  */
1237 
          op = (l >> OP_SH_OP) & OP_MASK_OP;
1238 
          if (op == OP_OP_COP0)
1239 
            (*info->fprintf_func) (info->stream, "%s",
1240 
                                   mips_cp0_names[(l >> OP_SH_RD) & OP_MASK_RD]);
1241 
          else
1242 
            (*info->fprintf_func) (info->stream, "$%ld",
1243 
                                   (l >> OP_SH_RD) & OP_MASK_RD);
1244 
          break;
1245 
 
1246 
        case 'K':
1247 
          (*info->fprintf_func) (info->stream, "%s",
1248 
                                 mips_hwr_names[(l >> OP_SH_RD) & OP_MASK_RD]);
1249 
          break;
1250 
 
1251 
        case 'N':
1252 
          (*info->fprintf_func) (info->stream,
1253 
                                 ((opp->pinfo & (FP_D | FP_S)) != 0
1254 
                                  ? "$fcc%ld" : "$cc%ld"),
1255 
                                 (l >> OP_SH_BCC) & OP_MASK_BCC);
1256 
          break;
1257 
 
1258 
        case 'M':
1259 
          (*info->fprintf_func) (info->stream, "$fcc%ld",
1260 
                                 (l >> OP_SH_CCC) & OP_MASK_CCC);
1261 
          break;
1262 
 
1263 
        case 'P':
1264 
          (*info->fprintf_func) (info->stream, "%ld",
1265 
                                 (l >> OP_SH_PERFREG) & OP_MASK_PERFREG);
1266 
          break;
1267 
 
1268 
        case 'e':
1269 
          (*info->fprintf_func) (info->stream, "%ld",
1270 
                                 (l >> OP_SH_VECBYTE) & OP_MASK_VECBYTE);
1271 
          break;
1272 
 
1273 
        case '%':
1274 
          (*info->fprintf_func) (info->stream, "%ld",
1275 
                                 (l >> OP_SH_VECALIGN) & OP_MASK_VECALIGN);
1276 
          break;
1277 
 
1278 
        case 'H':
1279 
          (*info->fprintf_func) (info->stream, "%ld",
1280 
                                 (l >> OP_SH_SEL) & OP_MASK_SEL);
1281 
          break;
1282 
 
1283 
        case 'O':
1284 
          (*info->fprintf_func) (info->stream, "%ld",
1285 
                                 (l >> OP_SH_ALN) & OP_MASK_ALN);
1286 
          break;
1287 
 
1288 
        case 'Q':
1289 
          {
1290 
            unsigned int vsel = (l >> OP_SH_VSEL) & OP_MASK_VSEL;
1291 
 
1292 
            if ((vsel & 0x10) == 0)
1293 
              {
1294 
                int fmt;
1295 
 
1296 
                vsel &= 0x0f;
1297 
                for (fmt = 0; fmt < 3; fmt++, vsel >>= 1)
1298 
                  if ((vsel & 1) == 0)
1299 
                    break;
1300 
                (*info->fprintf_func) (info->stream, "$v%ld[%d]",
1301 
                                       (l >> OP_SH_FT) & OP_MASK_FT,
1302 
                                       vsel >> 1);
1303 
              }
1304 
            else if ((vsel & 0x08) == 0)
1305 
              {
1306 
                (*info->fprintf_func) (info->stream, "$v%ld",
1307 
                                       (l >> OP_SH_FT) & OP_MASK_FT);
1308 
              }
1309 
            else
1310 
              {
1311 
                (*info->fprintf_func) (info->stream, "0x%lx",
1312 
                                       (l >> OP_SH_FT) & OP_MASK_FT);
1313 
              }
1314 
          }
1315 
          break;
1316 
 
1317 
        case 'X':
1318 
          (*info->fprintf_func) (info->stream, "$v%ld",
1319 
                                 (l >> OP_SH_FD) & OP_MASK_FD);
1320 
          break;
1321 
 
1322 
        case 'Y':
1323 
          (*info->fprintf_func) (info->stream, "$v%ld",
1324 
                                 (l >> OP_SH_FS) & OP_MASK_FS);
1325 
          break;
1326 
 
1327 
        case 'Z':
1328 
          (*info->fprintf_func) (info->stream, "$v%ld",
1329 
                                 (l >> OP_SH_FT) & OP_MASK_FT);
1330 
          break;
1331 
 
1332 
        default:
1333 
          /* xgettext:c-format */
1334 
          (*info->fprintf_func) (info->stream,
1335 
                                 _("# internal error, undefined modifier (%c)"),
1336 
                                 *d);
1337 
          return;
1338 
        }
1339 
    }
1340 
}
1341 
 
1342 
/* Print the mips instruction at address MEMADDR in debugged memory,
1343 
   on using INFO.  Returns length of the instruction, in bytes, which is
1344 
   always INSNLEN.  BIGENDIAN must be 1 if this is big-endian code, 0 if
1345 
   this is little-endian code.  */
1346 
 
1347 
static int
1348 
print_insn_mips (bfd_vma memaddr,
1349 
                 unsigned long int word,
1350 
                 struct disassemble_info *info)
1351 
{
1352 
  const struct mips_opcode *op;
1353 
  static bfd_boolean init = 0;
1354 
  static const struct mips_opcode *mips_hash[OP_MASK_OP + 1];
1355 
 
1356 
  /* Build a hash table to shorten the search time.  */
1357 
  if (! init)
1358 
    {
1359 
      unsigned int i;
1360 
 
1361 
      for (i = 0; i <= OP_MASK_OP; i++)
1362 
        {
1363 
          for (op = mips_opcodes; op < &mips_opcodes[NUMOPCODES]; op++)
1364 
            {
1365 
              if (op->pinfo == INSN_MACRO
1366 
                  || (no_aliases && (op->pinfo2 & INSN2_ALIAS)))
1367 
                continue;
1368 
              if (i == ((op->match >> OP_SH_OP) & OP_MASK_OP))
1369 
                {
1370 
                  mips_hash[i] = op;
1371 
                  break;
1372 
                }
1373 
            }
1374 
        }
1375 
 
1376 
      init = 1;
1377 
    }
1378 
 
1379 
  info->bytes_per_chunk = INSNLEN;
1380 
  info->display_endian = info->endian;
1381 
  info->insn_info_valid = 1;
1382 
  info->branch_delay_insns = 0;
1383 
  info->data_size = 0;
1384 
  info->insn_type = dis_nonbranch;
1385 
  info->target = 0;
1386 
  info->target2 = 0;
1387 
 
1388 
  op = mips_hash[(word >> OP_SH_OP) & OP_MASK_OP];
1389 
  if (op != NULL)
1390 
    {
1391 
      for (; op < &mips_opcodes[NUMOPCODES]; op++)
1392 
        {
1393 
          if (op->pinfo != INSN_MACRO
1394 
              && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
1395 
              && (word & op->mask) == op->match)
1396 
            {
1397 
              const char *d;
1398 
 
1399 
              /* We always allow to disassemble the jalx instruction.  */
1400 
              if (! OPCODE_IS_MEMBER (op, mips_isa, mips_processor)
1401 
                  && strcmp (op->name, "jalx"))
1402 
                continue;
1403 
 
1404 
              /* Figure out instruction type and branch delay information.  */
1405 
              if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
1406 
                {
1407 
                  if ((info->insn_type & INSN_WRITE_GPR_31) != 0)
1408 
                    info->insn_type = dis_jsr;
1409 
                  else
1410 
                    info->insn_type = dis_branch;
1411 
                  info->branch_delay_insns = 1;
1412 
                }
1413 
              else if ((op->pinfo & (INSN_COND_BRANCH_DELAY
1414 
                                     | INSN_COND_BRANCH_LIKELY)) != 0)
1415 
                {
1416 
                  if ((info->insn_type & INSN_WRITE_GPR_31) != 0)
1417 
                    info->insn_type = dis_condjsr;
1418 
                  else
1419 
                    info->insn_type = dis_condbranch;
1420 
                  info->branch_delay_insns = 1;
1421 
                }
1422 
              else if ((op->pinfo & (INSN_STORE_MEMORY
1423 
                                     | INSN_LOAD_MEMORY_DELAY)) != 0)
1424 
                info->insn_type = dis_dref;
1425 
 
1426 
              (*info->fprintf_func) (info->stream, "%s", op->name);
1427 
 
1428 
              d = op->args;
1429 
              if (d != NULL && *d != '\0')
1430 
                {
1431 
                  (*info->fprintf_func) (info->stream, "\t");
1432 
                  print_insn_args (d, word, memaddr, info, op);
1433 
                }
1434 
 
1435 
              return INSNLEN;
1436 
            }
1437 
        }
1438 
    }
1439 
 
1440 
  /* Handle undefined instructions.  */
1441 
  info->insn_type = dis_noninsn;
1442 
  (*info->fprintf_func) (info->stream, "0x%lx", word);
1443 
  return INSNLEN;
1444 
}
1445 
 
1446 
/* Disassemble an operand for a mips16 instruction.  */
1447 
 
1448 
static void
1449 
print_mips16_insn_arg (char type,
1450 
                       const struct mips_opcode *op,
1451 
                       int l,
1452 
                       bfd_boolean use_extend,
1453 
                       int extend,
1454 
                       bfd_vma memaddr,
1455 
                       struct disassemble_info *info)
1456 
{
1457 
  switch (type)
1458 
    {
1459 
    case ',':
1460 
    case '(':
1461 
    case ')':
1462 
      (*info->fprintf_func) (info->stream, "%c", type);
1463 
      break;
1464 
 
1465 
    case 'y':
1466 
    case 'w':
1467 
      (*info->fprintf_func) (info->stream, "%s",
1468 
                             mips16_reg_names(((l >> MIPS16OP_SH_RY)
1469 
                                               & MIPS16OP_MASK_RY)));
1470 
      break;
1471 
 
1472 
    case 'x':
1473 
    case 'v':
1474 
      (*info->fprintf_func) (info->stream, "%s",
1475 
                             mips16_reg_names(((l >> MIPS16OP_SH_RX)
1476 
                                               & MIPS16OP_MASK_RX)));
1477 
      break;
1478 
 
1479 
    case 'z':
1480 
      (*info->fprintf_func) (info->stream, "%s",
1481 
                             mips16_reg_names(((l >> MIPS16OP_SH_RZ)
1482 
                                               & MIPS16OP_MASK_RZ)));
1483 
      break;
1484 
 
1485 
    case 'Z':
1486 
      (*info->fprintf_func) (info->stream, "%s",
1487 
                             mips16_reg_names(((l >> MIPS16OP_SH_MOVE32Z)
1488 
                                               & MIPS16OP_MASK_MOVE32Z)));
1489 
      break;
1490 
 
1491 
    case '0':
1492 
      (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[0]);
1493 
      break;
1494 
 
1495 
    case 'S':
1496 
      (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[29]);
1497 
      break;
1498 
 
1499 
    case 'P':
1500 
      (*info->fprintf_func) (info->stream, "$pc");
1501 
      break;
1502 
 
1503 
    case 'R':
1504 
      (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[31]);
1505 
      break;
1506 
 
1507 
    case 'X':
1508 
      (*info->fprintf_func) (info->stream, "%s",
1509 
                             mips_gpr_names[((l >> MIPS16OP_SH_REGR32)
1510 
                                            & MIPS16OP_MASK_REGR32)]);
1511 
      break;
1512 
 
1513 
    case 'Y':
1514 
      (*info->fprintf_func) (info->stream, "%s",
1515 
                             mips_gpr_names[MIPS16OP_EXTRACT_REG32R (l)]);
1516 
      break;
1517 
 
1518 
    case '<':
1519 
    case '>':
1520 
    case '[':
1521 
    case ']':
1522 
    case '4':
1523 
    case '5':
1524 
    case 'H':
1525 
    case 'W':
1526 
    case 'D':
1527 
    case 'j':
1528 
    case '6':
1529 
    case '8':
1530 
    case 'V':
1531 
    case 'C':
1532 
    case 'U':
1533 
    case 'k':
1534 
    case 'K':
1535 
    case 'p':
1536 
    case 'q':
1537 
    case 'A':
1538 
    case 'B':
1539 
    case 'E':
1540 
      {
1541 
        int immed, nbits, shift, signedp, extbits, pcrel, extu, branch;
1542 
 
1543 
        shift = 0;
1544 
        signedp = 0;
1545 
        extbits = 16;
1546 
        pcrel = 0;
1547 
        extu = 0;
1548 
        branch = 0;
1549 
        switch (type)
1550 
          {
1551 
          case '<':
1552 
            nbits = 3;
1553 
            immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ;
1554 
            extbits = 5;
1555 
            extu = 1;
1556 
            break;
1557 
          case '>':
1558 
            nbits = 3;
1559 
            immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX;
1560 
            extbits = 5;
1561 
            extu = 1;
1562 
            break;
1563 
          case '[':
1564 
            nbits = 3;
1565 
            immed = (l >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ;
1566 
            extbits = 6;
1567 
            extu = 1;
1568 
            break;
1569 
          case ']':
1570 
            nbits = 3;
1571 
            immed = (l >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX;
1572 
            extbits = 6;
1573 
            extu = 1;
1574 
            break;
1575 
          case '4':
1576 
            nbits = 4;
1577 
            immed = (l >> MIPS16OP_SH_IMM4) & MIPS16OP_MASK_IMM4;
1578 
            signedp = 1;
1579 
            extbits = 15;
1580 
            break;
1581 
          case '5':
1582 
            nbits = 5;
1583 
            immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1584 
            info->insn_type = dis_dref;
1585 
            info->data_size = 1;
1586 
            break;
1587 
          case 'H':
1588 
            nbits = 5;
1589 
            shift = 1;
1590 
            immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1591 
            info->insn_type = dis_dref;
1592 
            info->data_size = 2;
1593 
            break;
1594 
          case 'W':
1595 
            nbits = 5;
1596 
            shift = 2;
1597 
            immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1598 
            if ((op->pinfo & MIPS16_INSN_READ_PC) == 0
1599 
                && (op->pinfo & MIPS16_INSN_READ_SP) == 0)
1600 
              {
1601 
                info->insn_type = dis_dref;
1602 
                info->data_size = 4;
1603 
              }
1604 
            break;
1605 
          case 'D':
1606 
            nbits = 5;
1607 
            shift = 3;
1608 
            immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1609 
            info->insn_type = dis_dref;
1610 
            info->data_size = 8;
1611 
            break;
1612 
          case 'j':
1613 
            nbits = 5;
1614 
            immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1615 
            signedp = 1;
1616 
            break;
1617 
          case '6':
1618 
            nbits = 6;
1619 
            immed = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
1620 
            break;
1621 
          case '8':
1622 
            nbits = 8;
1623 
            immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1624 
            break;
1625 
          case 'V':
1626 
            nbits = 8;
1627 
            shift = 2;
1628 
            immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1629 
            /* FIXME: This might be lw, or it might be addiu to $sp or
1630 
               $pc.  We assume it's load.  */
1631 
            info->insn_type = dis_dref;
1632 
            info->data_size = 4;
1633 
            break;
1634 
          case 'C':
1635 
            nbits = 8;
1636 
            shift = 3;
1637 
            immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1638 
            info->insn_type = dis_dref;
1639 
            info->data_size = 8;
1640 
            break;
1641 
          case 'U':
1642 
            nbits = 8;
1643 
            immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1644 
            extu = 1;
1645 
            break;
1646 
          case 'k':
1647 
            nbits = 8;
1648 
            immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1649 
            signedp = 1;
1650 
            break;
1651 
          case 'K':
1652 
            nbits = 8;
1653 
            shift = 3;
1654 
            immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1655 
            signedp = 1;
1656 
            break;
1657 
          case 'p':
1658 
            nbits = 8;
1659 
            immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1660 
            signedp = 1;
1661 
            pcrel = 1;
1662 
            branch = 1;
1663 
            info->insn_type = dis_condbranch;
1664 
            break;
1665 
          case 'q':
1666 
            nbits = 11;
1667 
            immed = (l >> MIPS16OP_SH_IMM11) & MIPS16OP_MASK_IMM11;
1668 
            signedp = 1;
1669 
            pcrel = 1;
1670 
            branch = 1;
1671 
            info->insn_type = dis_branch;
1672 
            break;
1673 
          case 'A':
1674 
            nbits = 8;
1675 
            shift = 2;
1676 
            immed = (l >> MIPS16OP_SH_IMM8) & MIPS16OP_MASK_IMM8;
1677 
            pcrel = 1;
1678 
            /* FIXME: This can be lw or la.  We assume it is lw.  */
1679 
            info->insn_type = dis_dref;
1680 
            info->data_size = 4;
1681 
            break;
1682 
          case 'B':
1683 
            nbits = 5;
1684 
            shift = 3;
1685 
            immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1686 
            pcrel = 1;
1687 
            info->insn_type = dis_dref;
1688 
            info->data_size = 8;
1689 
            break;
1690 
          case 'E':
1691 
            nbits = 5;
1692 
            shift = 2;
1693 
            immed = (l >> MIPS16OP_SH_IMM5) & MIPS16OP_MASK_IMM5;
1694 
            pcrel = 1;
1695 
            break;
1696 
          default:
1697 
            abort ();
1698 
          }
1699 
 
1700 
        if (! use_extend)
1701 
          {
1702 
            if (signedp && immed >= (1 << (nbits - 1)))
1703 
              immed -= 1 << nbits;
1704 
            immed <<= shift;
1705 
            if ((type == '<' || type == '>' || type == '[' || type == ']')
1706 
                && immed == 0)
1707 
              immed = 8;
1708 
          }
1709 
        else
1710 
          {
1711 
            if (extbits == 16)
1712 
              immed |= ((extend & 0x1f) << 11) | (extend & 0x7e0);
1713 
            else if (extbits == 15)
1714 
              immed |= ((extend & 0xf) << 11) | (extend & 0x7f0);
1715 
            else
1716 
              immed = ((extend >> 6) & 0x1f) | (extend & 0x20);
1717 
            immed &= (1 << extbits) - 1;
1718 
            if (! extu && immed >= (1 << (extbits - 1)))
1719 
              immed -= 1 << extbits;
1720 
          }
1721 
 
1722 
        if (! pcrel)
1723 
          (*info->fprintf_func) (info->stream, "%d", immed);
1724 
        else
1725 
          {
1726 
            bfd_vma baseaddr;
1727 
 
1728 
            if (branch)
1729 
              {
1730 
                immed *= 2;
1731 
                baseaddr = memaddr + 2;
1732 
              }
1733 
            else if (use_extend)
1734 
              baseaddr = memaddr - 2;
1735 
            else
1736 
              {
1737 
                int status;
1738 
                bfd_byte buffer[2];
1739 
 
1740 
                baseaddr = memaddr;
1741 
 
1742 
                /* If this instruction is in the delay slot of a jr
1743 
                   instruction, the base address is the address of the
1744 
                   jr instruction.  If it is in the delay slot of jalr
1745 
                   instruction, the base address is the address of the
1746 
                   jalr instruction.  This test is unreliable: we have
1747 
                   no way of knowing whether the previous word is
1748 
                   instruction or data.  */
1749 
                status = (*info->read_memory_func) (memaddr - 4, buffer, 2,
1750 
                                                    info);
1751 
                if (status == 0
1752 
                    && (((info->endian == BFD_ENDIAN_BIG
1753 
                          ? bfd_getb16 (buffer)
1754 
                          : bfd_getl16 (buffer))
1755 
                         & 0xf800) == 0x1800))
1756 
                  baseaddr = memaddr - 4;
1757 
                else
1758 
                  {
1759 
                    status = (*info->read_memory_func) (memaddr - 2, buffer,
1760 
                                                        2, info);
1761 
                    if (status == 0
1762 
                        && (((info->endian == BFD_ENDIAN_BIG
1763 
                              ? bfd_getb16 (buffer)
1764 
                              : bfd_getl16 (buffer))
1765 
                             & 0xf81f) == 0xe800))
1766 
                      baseaddr = memaddr - 2;
1767 
                  }
1768 
              }
1769 
            info->target = (baseaddr & ~((1 << shift) - 1)) + immed;
1770 
            if (pcrel && branch
1771 
                && info->flavour == bfd_target_unknown_flavour)
1772 
              /* For gdb disassembler, maintain odd address.  */
1773 
              info->target |= 1;
1774 
            (*info->print_address_func) (info->target, info);
1775 
          }
1776 
      }
1777 
      break;
1778 
 
1779 
    case 'a':
1780 
      {
1781 
        int jalx = l & 0x400;
1782 
 
1783 
        if (! use_extend)
1784 
          extend = 0;
1785 
        l = ((l & 0x1f) << 23) | ((l & 0x3e0) << 13) | (extend << 2);
1786 
        if (!jalx && info->flavour == bfd_target_unknown_flavour)
1787 
          /* For gdb disassembler, maintain odd address.  */
1788 
          l |= 1;
1789 
      }
1790 
      info->target = ((memaddr + 4) & ~(bfd_vma) 0x0fffffff) | l;
1791 
      (*info->print_address_func) (info->target, info);
1792 
      info->insn_type = dis_jsr;
1793 
      info->branch_delay_insns = 1;
1794 
      break;
1795 
 
1796 
    case 'l':
1797 
    case 'L':
1798 
      {
1799 
        int need_comma, amask, smask;
1800 
 
1801 
        need_comma = 0;
1802 
 
1803 
        l = (l >> MIPS16OP_SH_IMM6) & MIPS16OP_MASK_IMM6;
1804 
 
1805 
        amask = (l >> 3) & 7;
1806 
 
1807 
        if (amask > 0 && amask < 5)
1808 
          {
1809 
            (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]);
1810 
            if (amask > 1)
1811 
              (*info->fprintf_func) (info->stream, "-%s",
1812 
                                     mips_gpr_names[amask + 3]);
1813 
            need_comma = 1;
1814 
          }
1815 
 
1816 
        smask = (l >> 1) & 3;
1817 
        if (smask == 3)
1818 
          {
1819 
            (*info->fprintf_func) (info->stream, "%s??",
1820 
                                   need_comma ? "," : "");
1821 
            need_comma = 1;
1822 
          }
1823 
        else if (smask > 0)
1824 
          {
1825 
            (*info->fprintf_func) (info->stream, "%s%s",
1826 
                                   need_comma ? "," : "",
1827 
                                   mips_gpr_names[16]);
1828 
            if (smask > 1)
1829 
              (*info->fprintf_func) (info->stream, "-%s",
1830 
                                     mips_gpr_names[smask + 15]);
1831 
            need_comma = 1;
1832 
          }
1833 
 
1834 
        if (l & 1)
1835 
          {
1836 
            (*info->fprintf_func) (info->stream, "%s%s",
1837 
                                   need_comma ? "," : "",
1838 
                                   mips_gpr_names[31]);
1839 
            need_comma = 1;
1840 
          }
1841 
 
1842 
        if (amask == 5 || amask == 6)
1843 
          {
1844 
            (*info->fprintf_func) (info->stream, "%s$f0",
1845 
                                   need_comma ? "," : "");
1846 
            if (amask == 6)
1847 
              (*info->fprintf_func) (info->stream, "-$f1");
1848 
          }
1849 
      }
1850 
      break;
1851 
 
1852 
    case 'm':
1853 
    case 'M':
1854 
      /* MIPS16e save/restore.  */
1855 
      {
1856 
      int need_comma = 0;
1857 
      int amask, args, statics;
1858 
      int nsreg, smask;
1859 
      int framesz;
1860 
      int i, j;
1861 
 
1862 
      l = l & 0x7f;
1863 
      if (use_extend)
1864 
        l |= extend << 16;
1865 
 
1866 
      amask = (l >> 16) & 0xf;
1867 
      if (amask == MIPS16_ALL_ARGS)
1868 
        {
1869 
          args = 4;
1870 
          statics = 0;
1871 
        }
1872 
      else if (amask == MIPS16_ALL_STATICS)
1873 
        {
1874 
          args = 0;
1875 
          statics = 4;
1876 
        }
1877 
      else
1878 
        {
1879 
          args = amask >> 2;
1880 
          statics = amask & 3;
1881 
        }
1882 
 
1883 
      if (args > 0) {
1884 
          (*info->fprintf_func) (info->stream, "%s", mips_gpr_names[4]);
1885 
          if (args > 1)
1886 
            (*info->fprintf_func) (info->stream, "-%s",
1887 
                                   mips_gpr_names[4 + args - 1]);
1888 
          need_comma = 1;
1889 
      }
1890 
 
1891 
      framesz = (((l >> 16) & 0xf0) | (l & 0x0f)) * 8;
1892 
      if (framesz == 0 && !use_extend)
1893 
        framesz = 128;
1894 
 
1895 
      (*info->fprintf_func) (info->stream, "%s%d",
1896 
                             need_comma ? "," : "",
1897 
                             framesz);
1898 
 
1899 
      if (l & 0x40)                   /* $ra */
1900 
        (*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[31]);
1901 
 
1902 
      nsreg = (l >> 24) & 0x7;
1903 
      smask = 0;
1904 
      if (l & 0x20)                   /* $s0 */
1905 
        smask |= 1 << 0;
1906 
      if (l & 0x10)                   /* $s1 */
1907 
        smask |= 1 << 1;
1908 
      if (nsreg > 0)                  /* $s2-$s8 */
1909 
        smask |= ((1 << nsreg) - 1) << 2;
1910 
 
1911 
      /* Find first set static reg bit.  */
1912 
      for (i = 0; i < 9; i++)
1913 
        {
1914 
          if (smask & (1 << i))
1915 
            {
1916 
              (*info->fprintf_func) (info->stream, ",%s",
1917 
                                     mips_gpr_names[i == 8 ? 30 : (16 + i)]);
1918 
              /* Skip over string of set bits.  */
1919 
              for (j = i; smask & (2 << j); j++)
1920 
                continue;
1921 
              if (j > i)
1922 
                (*info->fprintf_func) (info->stream, "-%s",
1923 
                                       mips_gpr_names[j == 8 ? 30 : (16 + j)]);
1924 
              i = j + 1;
1925 
            }
1926 
        }
1927 
 
1928 
      /* Statics $ax - $a3.  */
1929 
      if (statics == 1)
1930 
        (*info->fprintf_func) (info->stream, ",%s", mips_gpr_names[7]);
1931 
      else if (statics > 0)
1932 
        (*info->fprintf_func) (info->stream, ",%s-%s",
1933 
                               mips_gpr_names[7 - statics + 1],
1934 
                               mips_gpr_names[7]);
1935 
      }
1936 
      break;
1937 
 
1938 
    default:
1939 
      /* xgettext:c-format */
1940 
      (*info->fprintf_func)
1941 
        (info->stream,
1942 
         _("# internal disassembler error, unrecognised modifier (%c)"),
1943 
         type);
1944 
      abort ();
1945 
    }
1946 
}
1947 
 
1948 
/* Disassemble mips16 instructions.  */
1949 
 
1950 
static int
1951 
print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
1952 
{
1953 
  int status;
1954 
  bfd_byte buffer[2];
1955 
  int length;
1956 
  int insn;
1957 
  bfd_boolean use_extend;
1958 
  int extend = 0;
1959 
  const struct mips_opcode *op, *opend;
1960 
 
1961 
  info->bytes_per_chunk = 2;
1962 
  info->display_endian = info->endian;
1963 
  info->insn_info_valid = 1;
1964 
  info->branch_delay_insns = 0;
1965 
  info->data_size = 0;
1966 
  info->insn_type = dis_nonbranch;
1967 
  info->target = 0;
1968 
  info->target2 = 0;
1969 
 
1970 
  status = (*info->read_memory_func) (memaddr, buffer, 2, info);
1971 
  if (status != 0)
1972 
    {
1973 
      (*info->memory_error_func) (status, memaddr, info);
1974 
      return -1;
1975 
    }
1976 
 
1977 
  length = 2;
1978 
 
1979 
  if (info->endian == BFD_ENDIAN_BIG)
1980 
    insn = bfd_getb16 (buffer);
1981 
  else
1982 
    insn = bfd_getl16 (buffer);
1983 
 
1984 
  /* Handle the extend opcode specially.  */
1985 
  use_extend = FALSE;
1986 
  if ((insn & 0xf800) == 0xf000)
1987 
    {
1988 
      use_extend = TRUE;
1989 
      extend = insn & 0x7ff;
1990 
 
1991 
      memaddr += 2;
1992 
 
1993 
      status = (*info->read_memory_func) (memaddr, buffer, 2, info);
1994 
      if (status != 0)
1995 
        {
1996 
          (*info->fprintf_func) (info->stream, "extend 0x%x",
1997 
                                 (unsigned int) extend);
1998 
          (*info->memory_error_func) (status, memaddr, info);
1999 
          return -1;
2000 
        }
2001 
 
2002 
      if (info->endian == BFD_ENDIAN_BIG)
2003 
        insn = bfd_getb16 (buffer);
2004 
      else
2005 
        insn = bfd_getl16 (buffer);
2006 
 
2007 
      /* Check for an extend opcode followed by an extend opcode.  */
2008 
      if ((insn & 0xf800) == 0xf000)
2009 
        {
2010 
          (*info->fprintf_func) (info->stream, "extend 0x%x",
2011 
                                 (unsigned int) extend);
2012 
          info->insn_type = dis_noninsn;
2013 
          return length;
2014 
        }
2015 
 
2016 
      length += 2;
2017 
    }
2018 
 
2019 
  /* FIXME: Should probably use a hash table on the major opcode here.  */
2020 
 
2021 
  opend = mips16_opcodes + bfd_mips16_num_opcodes;
2022 
  for (op = mips16_opcodes; op < opend; op++)
2023 
    {
2024 
      if (op->pinfo != INSN_MACRO
2025 
          && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
2026 
          && (insn & op->mask) == op->match)
2027 
        {
2028 
          const char *s;
2029 
 
2030 
          if (strchr (op->args, 'a') != NULL)
2031 
            {
2032 
              if (use_extend)
2033 
                {
2034 
                  (*info->fprintf_func) (info->stream, "extend 0x%x",
2035 
                                         (unsigned int) extend);
2036 
                  info->insn_type = dis_noninsn;
2037 
                  return length - 2;
2038 
                }
2039 
 
2040 
              use_extend = FALSE;
2041 
 
2042 
              memaddr += 2;
2043 
 
2044 
              status = (*info->read_memory_func) (memaddr, buffer, 2,
2045 
                                                  info);
2046 
              if (status == 0)
2047 
                {
2048 
                  use_extend = TRUE;
2049 
                  if (info->endian == BFD_ENDIAN_BIG)
2050 
                    extend = bfd_getb16 (buffer);
2051 
                  else
2052 
                    extend = bfd_getl16 (buffer);
2053 
                  length += 2;
2054 
                }
2055 
            }
2056 
 
2057 
          (*info->fprintf_func) (info->stream, "%s", op->name);
2058 
          if (op->args[0] != '\0')
2059 
            (*info->fprintf_func) (info->stream, "\t");
2060 
 
2061 
          for (s = op->args; *s != '\0'; s++)
2062 
            {
2063 
              if (*s == ','
2064 
                  && s[1] == 'w'
2065 
                  && (((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)
2066 
                      == ((insn >> MIPS16OP_SH_RY) & MIPS16OP_MASK_RY)))
2067 
                {
2068 
                  /* Skip the register and the comma.  */
2069 
                  ++s;
2070 
                  continue;
2071 
                }
2072 
              if (*s == ','
2073 
                  && s[1] == 'v'
2074 
                  && (((insn >> MIPS16OP_SH_RZ) & MIPS16OP_MASK_RZ)
2075 
                      == ((insn >> MIPS16OP_SH_RX) & MIPS16OP_MASK_RX)))
2076 
                {
2077 
                  /* Skip the register and the comma.  */
2078 
                  ++s;
2079 
                  continue;
2080 
                }
2081 
              print_mips16_insn_arg (*s, op, insn, use_extend, extend, memaddr,
2082 
                                     info);
2083 
            }
2084 
 
2085 
          if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
2086 
            {
2087 
              info->branch_delay_insns = 1;
2088 
              if (info->insn_type != dis_jsr)
2089 
                info->insn_type = dis_branch;
2090 
            }
2091 
 
2092 
          return length;
2093 
        }
2094 
    }
2095 
 
2096 
  if (use_extend)
2097 
    (*info->fprintf_func) (info->stream, "0x%x", extend | 0xf000);
2098 
  (*info->fprintf_func) (info->stream, "0x%x", insn);
2099 
  info->insn_type = dis_noninsn;
2100 
 
2101 
  return length;
2102 
}
2103 
 
2104 
/* In an environment where we do not know the symbol type of the
2105 
   instruction we are forced to assume that the low order bit of the
2106 
   instructions' address may mark it as a mips16 instruction.  If we
2107 
   are single stepping, or the pc is within the disassembled function,
2108 
   this works.  Otherwise, we need a clue.  Sometimes.  */
2109 
 
2110 
static int
2111 
_print_insn_mips (bfd_vma memaddr,
2112 
                  struct disassemble_info *info,
2113 
                  enum bfd_endian endianness)
2114 
{
2115 
  bfd_byte buffer[INSNLEN];
2116 
  int status;
2117 
 
2118 
  set_default_mips_dis_options (info);
2119 
  parse_mips_dis_options (info->disassembler_options);
2120 
 
2121 
#if 1
2122 
  /* FIXME: If odd address, this is CLEARLY a mips 16 instruction.  */
2123 
  /* Only a few tools will work this way.  */
2124 
  if (memaddr & 0x01)
2125 
    return print_insn_mips16 (memaddr, info);
2126 
#endif
2127 
 
2128 
#if SYMTAB_AVAILABLE
2129 
  if (info->mach == bfd_mach_mips16
2130 225 jeremybenn 
      || (info->symbols != NULL
2131 
          && bfd_asymbol_flavour (*info->symbols) == bfd_target_elf_flavour
2132 
          && ELF_ST_IS_MIPS16 ((*(elf_symbol_type **) info->symbols)
2133 
                               ->internal_elf_sym.st_other)))
2134 24 jeremybenn 
    return print_insn_mips16 (memaddr, info);
2135 
#endif
2136 
 
2137 
  status = (*info->read_memory_func) (memaddr, buffer, INSNLEN, info);
2138 
  if (status == 0)
2139 
    {
2140 
      unsigned long insn;
2141 
 
2142 
      if (endianness == BFD_ENDIAN_BIG)
2143 
        insn = (unsigned long) bfd_getb32 (buffer);
2144 
      else
2145 
        insn = (unsigned long) bfd_getl32 (buffer);
2146 
 
2147 
      return print_insn_mips (memaddr, insn, info);
2148 
    }
2149 
  else
2150 
    {
2151 
      (*info->memory_error_func) (status, memaddr, info);
2152 
      return -1;
2153 
    }
2154 
}
2155 
 
2156 
int
2157 
print_insn_big_mips (bfd_vma memaddr, struct disassemble_info *info)
2158 
{
2159 
  return _print_insn_mips (memaddr, info, BFD_ENDIAN_BIG);
2160 
}
2161 
 
2162 
int
2163 
print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info)
2164 
{
2165 
  return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE);
2166 
}
2167 
 
2168 
void
2169 
print_mips_disassembler_options (FILE *stream)
2170 
{
2171 
  unsigned int i;
2172 
 
2173 
  fprintf (stream, _("\n\
2174 
The following MIPS specific disassembler options are supported for use\n\
2175 
with the -M switch (multiple options should be separated by commas):\n"));
2176 
 
2177 
  fprintf (stream, _("\n\
2178 
  gpr-names=ABI            Print GPR names according to  specified ABI.\n\
2179 
                           Default: based on binary being disassembled.\n"));
2180 
 
2181 
  fprintf (stream, _("\n\
2182 
  fpr-names=ABI            Print FPR names according to specified ABI.\n\
2183 
                           Default: numeric.\n"));
2184 
 
2185 
  fprintf (stream, _("\n\
2186 
  cp0-names=ARCH           Print CP0 register names according to\n\
2187 
                           specified architecture.\n\
2188 
                           Default: based on binary being disassembled.\n"));
2189 
 
2190 
  fprintf (stream, _("\n\
2191 
  hwr-names=ARCH           Print HWR names according to specified \n\
2192 
                           architecture.\n\
2193 
                           Default: based on binary being disassembled.\n"));
2194 
 
2195 
  fprintf (stream, _("\n\
2196 
  reg-names=ABI            Print GPR and FPR names according to\n\
2197 
                           specified ABI.\n"));
2198 
 
2199 
  fprintf (stream, _("\n\
2200 
  reg-names=ARCH           Print CP0 register and HWR names according to\n\
2201 
                           specified architecture.\n"));
2202 
 
2203 
  fprintf (stream, _("\n\
2204 
  For the options above, the following values are supported for \"ABI\":\n\
2205 
   "));
2206 
  for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++)
2207 
    fprintf (stream, " %s", mips_abi_choices[i].name);
2208 
  fprintf (stream, _("\n"));
2209 
 
2210 
  fprintf (stream, _("\n\
2211 
  For the options above, The following values are supported for \"ARCH\":\n\
2212 
   "));
2213 
  for (i = 0; i < ARRAY_SIZE (mips_arch_choices); i++)
2214 
    if (*mips_arch_choices[i].name != '\0')
2215 
      fprintf (stream, " %s", mips_arch_choices[i].name);
2216 
  fprintf (stream, _("\n"));
2217 
 
2218 
  fprintf (stream, _("\n"));
2219 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.