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[/] [or1k/] [trunk/] [gen_or1k_isa/] [sources/] [or32.c] - Blame information for rev 1778

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1 133 markom 
/* Table of opcodes for the OpenRISC 1000 ISA.
2 1748 jeremybenn 
 
3 133 markom 
   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
4 1748 jeremybenn 
   Copyright (C) 2008 Embecosm Limited
5 
 
6 133 markom 
   Contributed by Damjan Lampret (lampret@opencores.org).
7 1748 jeremybenn 
   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
8 133 markom 
 
9 1748 jeremybenn 
   This file is part of Or1ksim, the OpenRISC 1000 Architectural Simulator.
10 
   This file is also part of gen_or1k_isa, GDB and GAS.
11 133 markom 
 
12 1748 jeremybenn 
   This program is free software; you can redistribute it and/or modify it
13 
   under the terms of the GNU General Public License as published by the Free
14 
   Software Foundation; either version 3 of the License, or (at your option)
15 
   any later version.
16 133 markom 
 
17 1748 jeremybenn 
   This program is distributed in the hope that it will be useful, but WITHOUT
18 
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 
   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
20 
   more details.
21 133 markom 
 
22 1748 jeremybenn 
   You should have received a copy of the GNU General Public License along
23 
   with this program.  If not, see <http://www.gnu.org/licenses/>.  */
24 133 markom 
 
25 1748 jeremybenn 
/* This program is commented throughout in a fashion suitable for processing
26 
   with Doxygen. */
27 
 
28 
 
29 
/* Autoconf and/or portability configuration */
30 
#include "config.h"
31 
#include "port.h"
32 
 
33 
/* System includes */
34 
#include <stdlib.h>
35 133 markom 
#include <stdio.h>
36 
 
37 1748 jeremybenn 
/* Package includes */
38 133 markom 
#include "opcode/or32.h"
39 
 
40 1342 nogj 
/* We treat all letters the same in encode/decode routines so
41 
   we need to assign some characteristics to them like signess etc.*/
42 1748 jeremybenn 
CONST struct or32_letter or32_letters[] = {
43 
  {'A', NUM_UNSIGNED},
44 
  {'B', NUM_UNSIGNED},
45 
  {'D', NUM_UNSIGNED},
46 
  {'I', NUM_SIGNED},
47 
  {'K', NUM_UNSIGNED},
48 
  {'L', NUM_UNSIGNED},
49 
  {'N', NUM_SIGNED},
50 
  {'0', NUM_UNSIGNED},
51 
  {'\0', 0}                      /* dummy entry */
52 133 markom 
};
53 
 
54 
/* Opcode encoding:
55 
   machine[31:30]: first two bits of opcode
56 
                   00 - neither of source operands is GPR
57 
                   01 - second source operand is GPR (rB)
58 
                   10 - first source operand is GPR (rA)
59 
                   11 - both source operands are GPRs (rA and rB)
60 
   machine[29:26]: next four bits of opcode
61 
   machine[25:00]: instruction operands (specific to individual instruction)
62 
 
63 
  Recommendation: irrelevant instruction bits should be set with a value of
64 
  bits in same positions of instruction preceding current instruction in the
65 
  code (when assembling).
66 
*/
67 
 
68 1748 jeremybenn 
#ifdef HAVE_EXECUTION
69 1341 nogj 
# if SIMPLE_EXECUTION
70 
#  define EFN &l_none
71 
#  define EF(func) &(func)
72 
#  define EFI &l_invalid
73 1452 nogj 
# elif COMPLEX_EXECUTION
74 1341 nogj 
#  define EFN "l_none"
75 
#  define EFI "l_invalid"
76 
#  ifdef __GNUC__
77 
#   define EF(func) #func
78 
#  else
79 
#   define EF(func) "func"
80 
#  endif
81 1452 nogj 
# else /* DYNAMIC_EXECUTION */
82 
#  define EFN &l_none
83 
#  define EF(func) &(gen_ ##func)
84 
#  define EFI &gen_l_invalid
85 
# endif
86 1748 jeremybenn 
#else /* HAVE_EXECUTION */
87 1341 nogj 
# define EFN &l_none
88 
# define EF(func) EFN
89 
# define EFI EFN
90 1748 jeremybenn 
#endif /* HAVE_EXECUTION */
91 133 markom 
 
92 1748 jeremybenn 
CONST struct or32_opcode or32_opcodes[] = {
93 133 markom 
 
94 1748 jeremybenn 
  {"l.j", "N", "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN",
95 
   EF (l_j), OR32_IF_DELAY, it_jump},
96 
  {"l.jal", "N", "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN",
97 
   EF (l_jal), OR32_IF_DELAY, it_jump},
98 
  {"l.bnf", "N", "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN",
99 
   EF (l_bnf), OR32_IF_DELAY | OR32_R_FLAG, it_branch},
100 
  {"l.bf", "N", "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN",
101 
   EF (l_bf), OR32_IF_DELAY | OR32_R_FLAG, it_branch},
102 
  {"l.nop", "K", "00 0x5  01--- ----- KKKK KKKK KKKK KKKK",
103 
   EF (l_nop), 0, it_nop},
104 
  {"l.movhi", "rD,K", "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK",
105 
   EF (l_movhi), 0, it_movimm},
106 
  {"l.macrc", "rD", "00 0x6  DDDDD ----1 0000 0000 0000 0000",
107 
   EF (l_macrc), 0, it_mac},
108 
  {"l.sys", "K", "00 0x8  00000 00000 KKKK KKKK KKKK KKKK",
109 
   EF (l_sys), 0, it_exception},
110 
  {"l.trap", "K", "00 0x8  01000 00000 KKKK KKKK KKKK KKKK",
111 
   EF (l_trap), 0, it_exception},
112 
  {"l.msync", "", "00 0x8  10000 00000 0000 0000 0000 0000", EFN,
113 
   0, it_unknown},
114 
  {"l.psync", "", "00 0x8  10100 00000 0000 0000 0000 0000", EFN,
115 
   0, it_unknown},
116 
  {"l.csync", "", "00 0x8  11000 00000 0000 0000 0000 0000", EFN,
117 
   0, it_unknown},
118 
  {"l.rfe", "", "00 0x9  ----- ----- ---- ---- ---- ----",
119 
   EF (l_rfe), 0, it_exception},
120 
  {"lv.all_eq.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0,
121 
   it_unknown},
122 
  {"lv.all_eq.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0,
123 
   it_unknown},
124 
  {"lv.all_ge.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0,
125 
   it_unknown},
126 
  {"lv.all_ge.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0,
127 
   it_unknown},
128 
  {"lv.all_gt.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0,
129 
   it_unknown},
130 
  {"lv.all_gt.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0,
131 
   it_unknown},
132 
  {"lv.all_le.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0,
133 
   it_unknown},
134 
  {"lv.all_le.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0,
135 
   it_unknown},
136 
  {"lv.all_lt.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0,
137 
   it_unknown},
138 
  {"lv.all_lt.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0,
139 
   it_unknown},
140 
  {"lv.all_ne.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0,
141 
   it_unknown},
142 
  {"lv.all_ne.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0,
143 
   it_unknown},
144 
  {"lv.any_eq.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0,
145 
   it_unknown},
146 
  {"lv.any_eq.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0,
147 
   it_unknown},
148 
  {"lv.any_ge.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0,
149 
   it_unknown},
150 
  {"lv.any_ge.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0,
151 
   it_unknown},
152 
  {"lv.any_gt.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0,
153 
   it_unknown},
154 
  {"lv.any_gt.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0,
155 
   it_unknown},
156 
  {"lv.any_le.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0,
157 
   it_unknown},
158 
  {"lv.any_le.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0,
159 
   it_unknown},
160 
  {"lv.any_lt.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0,
161 
   it_unknown},
162 
  {"lv.any_lt.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0,
163 
   it_unknown},
164 
  {"lv.any_ne.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0,
165 
   it_unknown},
166 
  {"lv.any_ne.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0,
167 
   it_unknown},
168 
  {"lv.add.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0,
169 
   it_unknown},
170 
  {"lv.add.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0,
171 
   it_unknown},
172 
  {"lv.adds.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0,
173 
   it_unknown},
174 
  {"lv.adds.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0,
175 
   it_unknown},
176 
  {"lv.addu.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0,
177 
   it_unknown},
178 
  {"lv.addu.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0,
179 
   it_unknown},
180 
  {"lv.addus.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0,
181 
   it_unknown},
182 
  {"lv.addus.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0,
183 
   it_unknown},
184 
  {"lv.and", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0,
185 
   it_unknown},
186 
  {"lv.avg.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0,
187 
   it_unknown},
188 
  {"lv.avg.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0,
189 
   it_unknown},
190 
  {"lv.cmp_eq.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0,
191 
   it_unknown},
192 
  {"lv.cmp_eq.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0,
193 
   it_unknown},
194 
  {"lv.cmp_ge.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0,
195 
   it_unknown},
196 
  {"lv.cmp_ge.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0,
197 
   it_unknown},
198 
  {"lv.cmp_gt.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0,
199 
   it_unknown},
200 
  {"lv.cmp_gt.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0,
201 
   it_unknown},
202 
  {"lv.cmp_le.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0,
203 
   it_unknown},
204 
  {"lv.cmp_le.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0,
205 
   it_unknown},
206 
  {"lv.cmp_lt.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0,
207 
   it_unknown},
208 
  {"lv.cmp_lt.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0,
209 
   it_unknown},
210 
  {"lv.cmp_ne.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0,
211 
   it_unknown},
212 
  {"lv.cmp_ne.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0,
213 
   it_unknown},
214 
  {"lv.madds.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0,
215 
   it_unknown},
216 
  {"lv.max.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0,
217 
   it_unknown},
218 
  {"lv.max.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0,
219 
   it_unknown},
220 
  {"lv.merge.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0,
221 
   it_unknown},
222 
  {"lv.merge.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0,
223 
   it_unknown},
224 
  {"lv.min.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0,
225 
   it_unknown},
226 
  {"lv.min.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0,
227 
   it_unknown},
228 
  {"lv.msubs.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0,
229 
   it_unknown},
230 
  {"lv.muls.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0,
231 
   it_unknown},
232 
  {"lv.nand", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0,
233 
   it_unknown},
234 
  {"lv.nor", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0,
235 
   it_unknown},
236 
  {"lv.or", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0,
237 
   it_unknown},
238 
  {"lv.pack.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0,
239 
   it_unknown},
240 
  {"lv.pack.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0,
241 
   it_unknown},
242 
  {"lv.packs.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0,
243 
   it_unknown},
244 
  {"lv.packs.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0,
245 
   it_unknown},
246 
  {"lv.packus.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0,
247 
   it_unknown},
248 
  {"lv.packus.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0,
249 
   it_unknown},
250 
  {"lv.perm.n", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0,
251 
   it_unknown},
252 
  {"lv.rl.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0,
253 
   it_unknown},
254 
  {"lv.rl.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0,
255 
   it_unknown},
256 
  {"lv.sll.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0,
257 
   it_unknown},
258 
  {"lv.sll.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0,
259 
   it_unknown},
260 
  {"lv.sll", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0,
261 
   it_unknown},
262 
  {"lv.srl.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0,
263 
   it_unknown},
264 
  {"lv.srl.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0,
265 
   it_unknown},
266 
  {"lv.sra.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0,
267 
   it_unknown},
268 
  {"lv.sra.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0,
269 
   it_unknown},
270 
  {"lv.srl", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0,
271 
   it_unknown},
272 
  {"lv.sub.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0,
273 
   it_unknown},
274 
  {"lv.sub.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0,
275 
   it_unknown},
276 
  {"lv.subs.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0,
277 
   it_unknown},
278 
  {"lv.subs.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0,
279 
   it_unknown},
280 
  {"lv.subu.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0,
281 
   it_unknown},
282 
  {"lv.subu.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0,
283 
   it_unknown},
284 
  {"lv.subus.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0,
285 
   it_unknown},
286 
  {"lv.subus.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0,
287 
   it_unknown},
288 
  {"lv.unpack.b", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0,
289 
   it_unknown},
290 
  {"lv.unpack.h", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0,
291 
   it_unknown},
292 
  {"lv.xor", "rD,rA,rB", "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0,
293 
   it_unknown},
294 
  {"lv.cust1", "", "00 0xA  ----- ----- ---- ---- 0xC ----", EFI, 0,
295 
   it_unknown},
296 
  {"lv.cust2", "", "00 0xA  ----- ----- ---- ---- 0xD ----", EFI, 0,
297 
   it_unknown},
298 
  {"lv.cust3", "", "00 0xA  ----- ----- ---- ---- 0xE ----", EFI, 0,
299 
   it_unknown},
300 
  {"lv.cust4", "", "00 0xA  ----- ----- ---- ---- 0xF ----", EFI, 0,
301 
   it_unknown},
302 676 markom 
 
303 1748 jeremybenn 
  {"l.jr", "rB", "01 0x1  ----- ----- BBBB B--- ---- ----",
304 
   EF (l_jr), OR32_IF_DELAY, it_jump},
305 
  {"l.jalr", "rB", "01 0x2  ----- ----- BBBB B--- ---- ----",
306 
   EF (l_jalr), OR32_IF_DELAY, it_jump},
307 
  {"l.maci", "rA,I", "01 0x3  IIIII AAAAA ---- -III IIII IIII",
308 
   EF (l_mac), 0, it_mac},
309 
  {"l.cust1", "", "01 0xC  ----- ----- ---- ---- ---- ----",
310 
   EF (l_cust1), 0, it_unknown},
311 
  {"l.cust2", "", "01 0xD  ----- ----- ---- ---- ---- ----",
312 
   EF (l_cust2), 0, it_unknown},
313 
  {"l.cust3", "", "01 0xE  ----- ----- ---- ---- ---- ----",
314 
   EF (l_cust3), 0, it_unknown},
315 
  {"l.cust4", "", "01 0xF  ----- ----- ---- ---- ---- ----",
316 
   EF (l_cust4), 0, it_unknown},
317 133 markom 
 
318 1748 jeremybenn 
  {"l.ld", "rD,I(rA)", "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI,
319 
   0, it_load},
320 
  {"l.lwz", "rD,I(rA)", "10 0x1  DDDDD AAAAA IIII IIII IIII IIII",
321 
   EF (l_lwz), 0, it_load},
322 
  {"l.lws", "rD,I(rA)", "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI,
323 
   0, it_load},
324 
  {"l.lbz", "rD,I(rA)", "10 0x3  DDDDD AAAAA IIII IIII IIII IIII",
325 
   EF (l_lbz), 0, it_load},
326 
  {"l.lbs", "rD,I(rA)", "10 0x4  DDDDD AAAAA IIII IIII IIII IIII",
327 
   EF (l_lbs), 0, it_load},
328 
  {"l.lhz", "rD,I(rA)", "10 0x5  DDDDD AAAAA IIII IIII IIII IIII",
329 
   EF (l_lhz), 0, it_load},
330 
  {"l.lhs", "rD,I(rA)", "10 0x6  DDDDD AAAAA IIII IIII IIII IIII",
331 
   EF (l_lhs), 0, it_load},
332 133 markom 
 
333 1748 jeremybenn 
  {"l.addi", "rD,rA,I", "10 0x7  DDDDD AAAAA IIII IIII IIII IIII",
334 
   EF (l_add), OR32_W_FLAG, it_arith},
335 
  {"l.addic", "rD,rA,I", "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI,
336 
   0, it_arith},
337 
  {"l.andi", "rD,rA,K", "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK",
338 
   EF (l_and), OR32_W_FLAG, it_arith},
339 
  {"l.ori", "rD,rA,K", "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK",
340 
   EF (l_or), 0, it_arith},
341 
  {"l.xori", "rD,rA,I", "10 0xB  DDDDD AAAAA IIII IIII IIII IIII",
342 
   EF (l_xor), 0, it_arith},
343 
  {"l.muli", "rD,rA,I", "10 0xC  DDDDD AAAAA IIII IIII IIII IIII",
344 
   EF (l_mul), 0, it_arith},
345 
  {"l.mfspr", "rD,rA,K", "10 0xD  DDDDD AAAAA KKKK KKKK KKKK KKKK",
346 
   EF (l_mfspr), 0, it_move},
347 
  {"l.slli", "rD,rA,L", "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL",
348 
   EF (l_sll), 0, it_shift},
349 
  {"l.srli", "rD,rA,L", "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL",
350 
   EF (l_srl), 0, it_shift},
351 
  {"l.srai", "rD,rA,L", "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL",
352 
   EF (l_sra), 0, it_shift},
353 
  {"l.rori", "rD,rA,L", "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI,
354 
   0, it_shift},
355 133 markom 
 
356 1748 jeremybenn 
  {"l.sfeqi", "rA,I", "10 0xF  00000 AAAAA IIII IIII IIII IIII",
357 
   EF (l_sfeq), OR32_W_FLAG, it_compare},
358 
  {"l.sfnei", "rA,I", "10 0xF  00001 AAAAA IIII IIII IIII IIII",
359 
   EF (l_sfne), OR32_W_FLAG, it_compare},
360 
  {"l.sfgtui", "rA,I", "10 0xF  00010 AAAAA IIII IIII IIII IIII",
361 
   EF (l_sfgtu), OR32_W_FLAG, it_compare},
362 
  {"l.sfgeui", "rA,I", "10 0xF  00011 AAAAA IIII IIII IIII IIII",
363 
   EF (l_sfgeu), OR32_W_FLAG, it_compare},
364 
  {"l.sfltui", "rA,I", "10 0xF  00100 AAAAA IIII IIII IIII IIII",
365 
   EF (l_sfltu), OR32_W_FLAG, it_compare},
366 
  {"l.sfleui", "rA,I", "10 0xF  00101 AAAAA IIII IIII IIII IIII",
367 
   EF (l_sfleu), OR32_W_FLAG, it_compare},
368 
  {"l.sfgtsi", "rA,I", "10 0xF  01010 AAAAA IIII IIII IIII IIII",
369 
   EF (l_sfgts), OR32_W_FLAG, it_compare},
370 
  {"l.sfgesi", "rA,I", "10 0xF  01011 AAAAA IIII IIII IIII IIII",
371 
   EF (l_sfges), OR32_W_FLAG, it_compare},
372 
  {"l.sfltsi", "rA,I", "10 0xF  01100 AAAAA IIII IIII IIII IIII",
373 
   EF (l_sflts), OR32_W_FLAG, it_compare},
374 
  {"l.sflesi", "rA,I", "10 0xF  01101 AAAAA IIII IIII IIII IIII",
375 
   EF (l_sfles), OR32_W_FLAG, it_compare},
376 133 markom 
 
377 1748 jeremybenn 
  {"l.mtspr", "rA,rB,K", "11 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK",
378 
   EF (l_mtspr), 0, it_move},
379 
  {"l.mac", "rA,rB", "11 0x1  ----- AAAAA BBBB B--- ---- 0x1",
380 
   EF (l_mac), 0, it_mac},
381 
  {"l.msb", "rA,rB", "11 0x1  ----- AAAAA BBBB B--- ---- 0x2",
382 
   EF (l_msb), 0, it_mac},
383 133 markom 
 
384 1748 jeremybenn 
  {"lf.add.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x0",
385 
   EF (lf_add_s), 0, it_float},
386 
  {"lf.sub.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x1",
387 
   EF (lf_sub_s), 0, it_float},
388 
  {"lf.mul.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x2",
389 
   EF (lf_mul_s), 0, it_float},
390 
  {"lf.div.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x3",
391 
   EF (lf_div_s), 0, it_float},
392 
  {"lf.itof.s", "rD,rA", "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x4",
393 
   EF (lf_itof_s), 0, it_float},
394 
  {"lf.ftoi.s", "rD,rA", "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x5",
395 
   EF (lf_ftoi_s), 0, it_float},
396 
  {"lf.rem.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x6",
397 
   EF (lf_rem_s), 0, it_float},
398 
  {"lf.madd.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x7",
399 
   EF (lf_madd_s), 0, it_float},
400 
  {"lf.sfeq.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0x8",
401 
   EF (lf_sfeq_s), 0, it_float},
402 
  {"lf.sfne.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0x9",
403 
   EF (lf_sfne_s), 0, it_float},
404 
  {"lf.sfgt.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0xA",
405 
   EF (lf_sfgt_s), 0, it_float},
406 
  {"lf.sfge.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0xB",
407 
   EF (lf_sfge_s), 0, it_float},
408 
  {"lf.sflt.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0xC",
409 
   EF (lf_sflt_s), 0, it_float},
410 
  {"lf.sfle.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0xD",
411 
   EF (lf_sfle_s), 0, it_float},
412 
  {"lf.cust1.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0xD ----", EFI,
413 
   0, it_float},
414 133 markom 
 
415 1748 jeremybenn 
  {"lf.add.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0,
416 
   it_float},
417 
  {"lf.sub.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0,
418 
   it_float},
419 
  {"lf.mul.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0,
420 
   it_float},
421 
  {"lf.div.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0,
422 
   it_float},
423 
  {"lf.itof.d", "rD,rA", "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x4", EFI, 0,
424 
   it_float},
425 
  {"lf.ftoi.d", "rD,rA", "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x5", EFI, 0,
426 
   it_float},
427 
  {"lf.rem.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0,
428 
   it_float},
429 
  {"lf.madd.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0,
430 
   it_float},
431 
  {"lf.sfeq.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0,
432 
   it_float},
433 
  {"lf.sfne.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0,
434 
   it_float},
435 
  {"lf.sfgt.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0,
436 
   it_float},
437 
  {"lf.sfge.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0,
438 
   it_float},
439 
  {"lf.sflt.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0,
440 
   it_float},
441 
  {"lf.sfle.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0,
442 
   it_float},
443 
  {"lf.cust1.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0xE ----", EFI, 0,
444 
   it_float},
445 676 markom 
 
446 1748 jeremybenn 
  {"l.sd", "I(rA),rB", "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI,
447 
   0, it_store},
448 
  {"l.sw", "I(rA),rB", "11 0x5  IIIII AAAAA BBBB BIII IIII IIII",
449 
   EF (l_sw), 0, it_store},
450 
  {"l.sb", "I(rA),rB", "11 0x6  IIIII AAAAA BBBB BIII IIII IIII",
451 
   EF (l_sb), 0, it_store},
452 
  {"l.sh", "I(rA),rB", "11 0x7  IIIII AAAAA BBBB BIII IIII IIII",
453 
   EF (l_sh), 0, it_store},
454 1295 lampret 
 
455 1748 jeremybenn 
  {"l.add", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0",
456 
   EF (l_add), OR32_W_FLAG, it_arith},
457 
  {"l.addc", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1",
458 
   EF (l_addc), OR32_W_FLAG, it_arith},
459 
  {"l.sub", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2",
460 
   EF (l_sub), 0, it_arith},
461 
  {"l.and", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3",
462 
   EF (l_and), OR32_W_FLAG, it_arith},
463 
  {"l.or", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4",
464 
   EF (l_or), 0, it_arith},
465 
  {"l.xor", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5",
466 
   EF (l_xor), 0, it_arith},
467 
  {"l.mul", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6",
468 
   EF (l_mul), 0, it_arith},
469 1295 lampret 
 
470 1748 jeremybenn 
  {"l.sll", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8",
471 
   EF (l_sll), 0, it_shift},
472 
  {"l.srl", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8",
473 
   EF (l_srl), 0, it_shift},
474 
  {"l.sra", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8",
475 
   EF (l_sra), 0, it_shift},
476 
  {"l.ror", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI,
477 
   0, it_shift},
478 
  {"l.div", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x9",
479 
   EF (l_div), 0, it_arith},
480 
  {"l.divu", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xA",
481 
   EF (l_divu), 0, it_arith},
482 
  {"l.mulu", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI,
483 
   0, it_arith},
484 
  {"l.extbs", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 01-- 0xC",
485 
   EF (l_extbs), 0, it_move},
486 
  {"l.exths", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 00-- 0xC",
487 
   EF (l_exths), 0, it_move},
488 
  {"l.extws", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 00-- 0xD",
489 
   EF (l_extws), 0, it_move},
490 
  {"l.extbz", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 11-- 0xC",
491 
   EF (l_extbz), 0, it_move},
492 
  {"l.exthz", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 10-- 0xC",
493 
   EF (l_exthz), 0, it_move},
494 
  {"l.extwz", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 01-- 0xD",
495 
   EF (l_extwz), 0, it_move},
496 
  {"l.cmov", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE",
497 
   EF (l_cmov), OR32_R_FLAG, it_move},
498 
  {"l.ff1", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 ---- 0xF",
499 
   EF (l_ff1), 0, it_arith},
500 
  {"l.fl1", "rD,rA", "11 0x8  DDDDD AAAAA ---- --01 ---- 0xF", EFI, 0,
501 
   it_arith},
502 133 markom 
 
503 1748 jeremybenn 
  {"l.sfeq", "rA,rB", "11 0x9  00000 AAAAA BBBB B--- ---- ----",
504 
   EF (l_sfeq), OR32_W_FLAG, it_compare},
505 
  {"l.sfne", "rA,rB", "11 0x9  00001 AAAAA BBBB B--- ---- ----",
506 
   EF (l_sfne), OR32_W_FLAG, it_compare},
507 
  {"l.sfgtu", "rA,rB", "11 0x9  00010 AAAAA BBBB B--- ---- ----",
508 
   EF (l_sfgtu), OR32_W_FLAG, it_compare},
509 
  {"l.sfgeu", "rA,rB", "11 0x9  00011 AAAAA BBBB B--- ---- ----",
510 
   EF (l_sfgeu), OR32_W_FLAG, it_compare},
511 
  {"l.sfltu", "rA,rB", "11 0x9  00100 AAAAA BBBB B--- ---- ----",
512 
   EF (l_sfltu), OR32_W_FLAG, it_compare},
513 
  {"l.sfleu", "rA,rB", "11 0x9  00101 AAAAA BBBB B--- ---- ----",
514 
   EF (l_sfleu), OR32_W_FLAG, it_compare},
515 
  {"l.sfgts", "rA,rB", "11 0x9  01010 AAAAA BBBB B--- ---- ----",
516 
   EF (l_sfgts), OR32_W_FLAG, it_compare},
517 
  {"l.sfges", "rA,rB", "11 0x9  01011 AAAAA BBBB B--- ---- ----",
518 
   EF (l_sfges), OR32_W_FLAG, it_compare},
519 
  {"l.sflts", "rA,rB", "11 0x9  01100 AAAAA BBBB B--- ---- ----",
520 
   EF (l_sflts), OR32_W_FLAG, it_compare},
521 
  {"l.sfles", "rA,rB", "11 0x9  01101 AAAAA BBBB B--- ---- ----",
522 
   EF (l_sfles), OR32_W_FLAG, it_compare},
523 676 markom 
 
524 1748 jeremybenn 
  {"l.cust5", "rD,rA,rB,L,K", "11 0xC  DDDDD AAAAA BBBB BLLL LLLK KKKK", EFI,
525 
   0, it_unknown},
526 
  {"l.cust6", "", "11 0xD  ----- ----- ---- ---- ---- ----", EFI,
527 
   0, it_unknown},
528 
  {"l.cust7", "", "11 0xE  ----- ----- ---- ---- ---- ----", EFI,
529 
   0, it_unknown},
530 
  {"l.cust8", "", "11 0xF  ----- ----- ---- ---- ---- ----", EFI,
531 
   0, it_unknown},
532 133 markom 
 
533 221 markom 
/* This section should not be defined in or1ksim, since it contains duplicates,
534 
   which would cause machine builder to complain.  */
535 374 simons 
#ifdef HAS_CUST
536 1748 jeremybenn 
  {"l.cust5_1", "rD", "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI,
537 
   0, it_unknown},
538 
  {"l.cust5_2", "rD,rA", "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI,
539 
   0, it_unknown},
540 
  {"l.cust5_3", "rD,rA,rB", "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI,
541 
   0, it_unknown},
542 221 markom 
 
543 1748 jeremybenn 
  {"l.cust6_1", "rD", "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI,
544 
   0, it_unknown},
545 
  {"l.cust6_2", "rD,rA", "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI,
546 
   0, it_unknown},
547 
  {"l.cust6_3", "rD,rA,rB", "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI,
548 
   0, it_unknown},
549 221 markom 
 
550 1748 jeremybenn 
  {"l.cust7_1", "rD", "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI,
551 
   0, it_unknown},
552 
  {"l.cust7_2", "rD,rA", "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI,
553 
   0, it_unknown},
554 
  {"l.cust7_3", "rD,rA,rB", "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI,
555 
   0, it_unknown},
556 221 markom 
 
557 1748 jeremybenn 
  {"l.cust8_1", "rD", "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI,
558 
   0, it_unknown},
559 
  {"l.cust8_2", "rD,rA", "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI,
560 
   0, it_unknown},
561 
  {"l.cust8_3", "rD,rA,rB", "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI,
562 
   0, it_unknown},
563 221 markom 
#endif
564 
 
565 1748 jeremybenn 
  {"", "", "", EFI, 0, 0} /* Dummy entry, not included in num_opcodes.  This
566 
                                 * lets code examine entry i+1 without checking
567 
                                 * if we've run off the end of the table.  */
568 133 markom 
};
569 
 
570 
#undef EFI
571 
#undef EFN
572 1748 jeremybenn 
#undef EF
573 133 markom 
 
574 1748 jeremybenn 
CONST int num_opcodes =
575 
  ((sizeof (or32_opcodes)) / (sizeof (struct or32_opcode))) - 1;
576 133 markom 
 
577 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
578 
int
579 1748 jeremybenn 
insn_len (int insn_index)
580 133 markom 
{
581 1748 jeremybenn 
  insn_index = 0;                /* Just to get rid that warning.  */
582 133 markom 
  return 4;
583 
}
584 
 
585 
/* Is individual insn's operand signed or unsigned? */
586 138 markom 
int
587 1748 jeremybenn 
letter_signed (char l)
588 133 markom 
{
589 
  CONST struct or32_letter *pletter;
590 1748 jeremybenn 
 
591 
  for (pletter = or32_letters; pletter->letter != '\0'; pletter++)
592 133 markom 
    if (pletter->letter == l)
593 
      return pletter->sign;
594 1748 jeremybenn 
 
595 
  printf ("letter_signed(%c): Unknown letter.\n", l);
596 133 markom 
  return 0;
597 
}
598 
 
599 703 markom 
/* Simple cache for letter ranges */
600 1748 jeremybenn 
static int range_cache[256] = { 0 };
601 703 markom 
 
602 133 markom 
/* Number of letters in the individual lettered operand. */
603 138 markom 
int
604 1748 jeremybenn 
letter_range (char l)
605 133 markom 
{
606 
  CONST struct or32_opcode *pinsn;
607 
  char *enc;
608 
  int range = 0;
609 703 markom 
 
610 1748 jeremybenn 
  /* Is value cached? */
611 
  if ((range = range_cache[(unsigned char) l]))
612 
    return range;
613 
 
614 
  for (pinsn = or32_opcodes; strlen (pinsn->name); pinsn++)
615 138 markom 
    {
616 1748 jeremybenn 
      if (strchr (pinsn->encoding, l))
617 138 markom 
        {
618 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
619 1748 jeremybenn 
            if ((*enc == '0') && (*(enc + 1) == 'x'))
620 138 markom 
              enc += 2;
621 
            else if (*enc == l)
622 
              range++;
623 1748 jeremybenn 
          return range_cache[(unsigned char) l] = range;
624 133 markom 
        }
625 
    }
626 1748 jeremybenn 
 
627 
  printf ("\nABORT: letter_range(%c): Never used letter.\n", l);
628 
  exit (1);
629 133 markom 
}
630 
 
631 
/* MM: Returns index of given instruction name.  */
632 138 markom 
int
633 
insn_index (char *insn)
634 
{
635 133 markom 
  int i, found = -1;
636 371 markom 
  for (i = 0; i < num_opcodes; i++)
637 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
638 
      {
639 
        found = i;
640 
        break;
641 
      }
642 133 markom 
  return found;
643 
}
644 
 
645 717 markom 
/* Returns name of the specified instruction index */
646 
CONST char *
647 1748 jeremybenn 
insn_name (int index)
648 138 markom 
{
649 371 markom 
  if (index >= 0 && index < num_opcodes)
650 133 markom 
    return or32_opcodes[index].name;
651 
  else
652 
    return "???";
653 
}
654 
 
655 1748 jeremybenn 
#if defined(HAVE_EXECUTION) && SIMPLE_EXECUTION
656 717 markom 
void
657 1748 jeremybenn 
l_none (struct iqueue_entry *current)
658 1342 nogj 
{
659 
}
660 1748 jeremybenn 
#elif defined(HAVE_EXECUTION) && DYNAMIC_EXECUTION
661 1452 nogj 
void
662 1748 jeremybenn 
l_none (struct op_queue *opq, int *param_t, int delay_slot)
663 1452 nogj 
{
664 
}
665 1342 nogj 
#else
666 
void
667 1748 jeremybenn 
l_none ()
668 138 markom 
{
669 133 markom 
}
670 1342 nogj 
#endif
671 133 markom 
 
672 
/*** Finite automata for instruction decoding building code ***/
673 
 
674 1341 nogj 
/* Find symbols in encoding.  */
675 706 markom 
unsigned long
676 1748 jeremybenn 
insn_extract (param_ch, enc_initial)
677 133 markom 
     char param_ch;
678 
     char *enc_initial;
679 
{
680 
  char *enc;
681 
  unsigned long ret = 0;
682 
  unsigned opc_pos = 32;
683 1748 jeremybenn 
  for (enc = enc_initial; *enc != '\0';)
684 
    if ((*enc == '0') && (*(enc + 1) == 'x'))
685 133 markom 
      {
686 1748 jeremybenn 
        unsigned long tmp = strtol (enc + 2, NULL, 16);
687 
        opc_pos -= 4;
688 138 markom 
        if (param_ch == '0' || param_ch == '1')
689 
          {
690 
            if (param_ch == '0')
691 
              tmp = 15 - tmp;
692 
            ret |= tmp << opc_pos;
693 
          }
694 1748 jeremybenn 
        enc += 3;
695 133 markom 
      }
696 138 markom 
    else
697 
      {
698 1748 jeremybenn 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha (*enc))
699 138 markom 
          {
700 
            opc_pos--;
701 
            if (param_ch == *enc)
702 
              ret |= 1 << opc_pos;
703 
          }
704 
        enc++;
705 133 markom 
      }
706 
  return ret;
707 
}
708 
 
709 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
710 
#define MAX_OP_TABLE_SIZE (1200)
711 133 markom 
#define MAX_LEN           (8)
712 
 
713 
#ifndef MIN
714 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
715 
#endif
716 
 
717 
unsigned long *automata;
718 
int nuncovered;
719 
int curpass = 0;
720 
 
721 1341 nogj 
/* MM: Struct that holds runtime build information about instructions.  */
722 1342 nogj 
struct temp_insn_struct *ti;
723 138 markom 
 
724 
struct insn_op_struct *op_data, **op_start;
725 
 
726 1748 jeremybenn 
static void
727 
or32_debug (int level, const char *format, ...)
728 
{
729 
#if DEBUG
730 
  char *p;
731 
  va_list ap;
732 
 
733 
  if ((p = malloc (1000)) == NULL)
734 
    return;
735 
  va_start (ap, format);
736 
  (void) vsnprintf (p, 1000, format, ap);
737 
  va_end (ap);
738 
  printf ("%s\n", p);
739 
  fflush (stdout);
740 
  free (p);
741 
#endif
742 
}
743 
 
744 138 markom 
/* Recursive utility function used to find best match and to build automata.  */
745 
static unsigned long *
746 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
747 
{
748 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
749 
  unsigned long cur_mask = mask;
750 
  unsigned long *next;
751 
 
752 
  for (i = 0; i < num_opcodes; i++)
753 138 markom 
    if (ti[i].in_pass == pass)
754 
      {
755 
        cur_mask &= ti[i].insn_mask;
756 
        ninstr++;
757 
        last_match = i;
758 
      }
759 1748 jeremybenn 
 
760 
  or32_debug (8, "%08X %08lX\n", mask, cur_mask);
761 138 markom 
  if (ninstr == 0)
762 
    return 0;
763 
  if (ninstr == 1)
764 
    {
765 
      /* Leaf holds instruction index. */
766 1748 jeremybenn 
      or32_debug (8, "%i>I%i %s\n", cur - automata, last_match,
767 
             or32_opcodes[last_match].name);
768 138 markom 
      *cur = LEAF_FLAG | last_match;
769 
      cur++;
770 
      nuncovered--;
771 1748 jeremybenn 
    }
772 
  else
773 
    {
774 138 markom 
      /* Find longest match.  */
775 
      for (i = 0; i < 32; i++)
776 
        {
777 
          int len;
778 1748 jeremybenn 
          for (len = best_len + 1; len < MIN (MAX_LEN, 33 - i); len++)
779 138 markom 
            {
780 1748 jeremybenn 
              unsigned long m = (1UL << ((unsigned long) len)) - 1;
781 
              or32_debug (9, " (%i(%08lX & %08lX>>%i = %08lX, %08lX)", len, m,
782 
                     cur_mask, i, (cur_mask >> (unsigned) i),
783 
                     (cur_mask >> (unsigned) i) & m);
784 
              if ((m & (cur_mask >> (unsigned) i)) == m)
785 138 markom 
                {
786 
                  best_len = len;
787 
                  best_first = i;
788 1748 jeremybenn 
                  or32_debug (9, "!");
789 138 markom 
                }
790 
              else
791 
                break;
792 
            }
793 
        }
794 1748 jeremybenn 
      or32_debug (9, "\n");
795 138 markom 
      if (!best_len)
796 
        {
797 1748 jeremybenn 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr,
798 
                   mask);
799 138 markom 
          for (i = 0; i < num_opcodes; i++)
800 
            if (ti[i].in_pass == pass)
801 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
802 1748 jeremybenn 
 
803 138 markom 
          fprintf (stderr, "\n");
804 
          exit (1);
805 
        }
806 1748 jeremybenn 
      or32_debug (8, "%i> #### %i << %i (%i) ####\n", cur - automata, best_len,
807 
             best_first, ninstr);
808 138 markom 
      *cur = best_first;
809 
      cur++;
810 
      *cur = (1 << best_len) - 1;
811 
      cur++;
812 1748 jeremybenn 
      next = cur;
813 138 markom 
      /* Allocate space for pointers.  */
814 
      cur += 1 << best_len;
815 1748 jeremybenn 
      cur_mask = (1 << (unsigned long) best_len) - 1;
816 
 
817 
      for (i = 0; i < (1 << (unsigned long) best_len); i++)
818 138 markom 
        {
819 
          int j;
820 
          unsigned long *c;
821 
          curpass++;
822 
          for (j = 0; j < num_opcodes; j++)
823 
            if (ti[j].in_pass == pass
824 1748 jeremybenn 
                && ((ti[j].insn >> best_first) & cur_mask) ==
825 
                (unsigned long) i
826 138 markom 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
827 
              ti[j].in_pass = curpass;
828 
 
829 1748 jeremybenn 
          or32_debug (9, "%08X %08lX %i\n", mask, cur_mask, best_first);
830 138 markom 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
831 
          if (c)
832 
            {
833 1748 jeremybenn 
              or32_debug (8, "%i> #%X -> %u\n", next - automata, i,
834 
                     cur - automata);
835 138 markom 
              *next = cur - automata;
836 1748 jeremybenn 
              cur = c;
837 138 markom 
            }
838 1748 jeremybenn 
          else
839 138 markom 
            {
840 1748 jeremybenn 
              or32_debug (8, "%i> N/A\n", next - automata);
841 138 markom 
              *next = 0;
842 
            }
843 
          next++;
844 
        }
845 133 markom 
    }
846 138 markom 
  return cur;
847 
}
848 133 markom 
 
849 138 markom 
/* Returns number of nonzero bits. */
850 
static int
851 
num_ones (unsigned long value)
852 
{
853 
  int c = 0;
854 
  while (value)
855 
    {
856 
      if (value & 1)
857 
        c++;
858 
      value >>= 1;
859 133 markom 
    }
860 138 markom 
  return c;
861 
}
862 133 markom 
 
863 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
864 
   Parameters are stored in ti struct.  */
865 
 
866 
static struct insn_op_struct *
867 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
868 
{
869 
  char *args = opcode->args;
870 
  int i, type;
871 1346 nogj 
  int num_cur_op = 0;;
872 1748 jeremybenn 
 
873 138 markom 
  i = 0;
874 
  type = 0;
875 262 markom 
  /* In case we don't have any parameters, we add dummy read from r0.  */
876 1748 jeremybenn 
  if (!(*args))
877 
    {
878 
      cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
879 
      cur->data = 0;
880 
      or32_debug (9, "#%08lX %08lX\n", cur->type, cur->data);
881 
      cur++;
882 
      return cur;
883 
    }
884 
 
885 138 markom 
  while (*args != '\0')
886 1748 jeremybenn 
    {
887 138 markom 
      if (*args == 'r')
888 
        {
889 
          args++;
890 
          type |= OPTYPE_REG;
891 1748 jeremybenn 
          if (*args == 'D')
892 1341 nogj 
            type |= OPTYPE_DST;
893 133 markom 
        }
894 138 markom 
      else if (isalpha (*args))
895 
        {
896 
          unsigned long arg;
897 1748 jeremybenn 
          arg = insn_extract (*args, opcode->encoding);
898 
          or32_debug (9, "%s : %08lX ------\n", opcode->name, arg);
899 138 markom 
          if (letter_signed (*args))
900 
            {
901 
              type |= OPTYPE_SIG;
902 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
903 
            }
904 
 
905 1748 jeremybenn 
          num_cur_op = 0;
906 138 markom 
          /* Split argument to sequences of consecutive ones.  */
907 
          while (arg)
908 
            {
909 
              int shr = 0;
910 
              unsigned long tmp = arg, mask = 0;
911 
              while ((tmp & 1) == 0)
912 
                {
913 
                  shr++;
914 
                  tmp >>= 1;
915 
                }
916 
              while (tmp & 1)
917 
                {
918 
                  mask++;
919 
                  tmp >>= 1;
920 
                }
921 
              cur->type = type | shr;
922 
              cur->data = mask;
923 
              arg &= ~(((1 << mask) - 1) << shr);
924 1748 jeremybenn 
              or32_debug (6, "|%08lX %08lX\n", cur->type, cur->data);
925 138 markom 
              cur++;
926 1748 jeremybenn 
              num_cur_op++;
927 138 markom 
            }
928 
          args++;
929 
        }
930 
      else if (*args == '(')
931 
        {
932 
          /* Next param is displacement.  Later we will treat them as one operand.  */
933 1748 jeremybenn 
          /* Set the OPTYPE_DIS flag on all insn_op_structs that belong to this
934 
           * operand */
935 
          while (num_cur_op > 0)
936 
            {
937 
              cur[-num_cur_op].type |= type | OPTYPE_DIS;
938 
              num_cur_op--;
939 
            }
940 
          cur[-1].type |= OPTYPE_OP;
941 
          or32_debug (9, ">%08lX %08lX\n", cur->type, cur->data);
942 138 markom 
          type = 0;
943 
          i++;
944 
          args++;
945 
        }
946 
      else if (*args == OPERAND_DELIM)
947 
        {
948 
          cur--;
949 
          cur->type = type | cur->type | OPTYPE_OP;
950 1748 jeremybenn 
          or32_debug (9, ">%08lX %08lX\n", cur->type, cur->data);
951 138 markom 
          cur++;
952 
          type = 0;
953 
          i++;
954 
          args++;
955 
        }
956 
      else if (*args == '0')
957 
        {
958 
          cur->type = type;
959 
          cur->data = 0;
960 1748 jeremybenn 
          or32_debug (9, ">%08lX %08lX\n", cur->type, cur->data);
961 138 markom 
          cur++;
962 
          type = 0;
963 
          i++;
964 
          args++;
965 
        }
966 
      else if (*args == ')')
967 
        args++;
968 
      else
969 
        {
970 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
971 
          exit (1);
972 
        }
973 133 markom 
    }
974 138 markom 
  cur--;
975 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
976 1748 jeremybenn 
  or32_debug (9, "#%08lX %08lX\n", cur->type, cur->data);
977 138 markom 
  cur++;
978 133 markom 
  return cur;
979 
}
980 
 
981 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
982 
 
983 
void
984 1748 jeremybenn 
build_automata ()
985 138 markom 
{
986 371 markom 
  int i;
987 133 markom 
  unsigned long *end;
988 138 markom 
  struct insn_op_struct *cur;
989 133 markom 
 
990 1748 jeremybenn 
  automata =
991 
    (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
992 
  ti =
993 
    (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) *
994 
                                        num_opcodes);
995 
 
996 133 markom 
  nuncovered = num_opcodes;
997 709 markom 
 
998 1748 jeremybenn 
#ifdef HAVE_EXECUTION
999 
  printf ("Building automata... ");
1000 709 markom 
#endif
1001 
 
1002 133 markom 
  /* Build temporary information about instructions.  */
1003 138 markom 
  for (i = 0; i < num_opcodes; i++)
1004 
    {
1005 
      unsigned long ones, zeros;
1006 
      char *encoding = or32_opcodes[i].encoding;
1007 1748 jeremybenn 
      ones = insn_extract ('1', encoding);
1008 
      zeros = insn_extract ('0', encoding);
1009 138 markom 
      ti[i].insn_mask = ones | zeros;
1010 
      ti[i].insn = ones;
1011 
      ti[i].in_pass = curpass = 0;
1012 344 markom 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
1013 1748 jeremybenn 
         or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn); */
1014 138 markom 
    }
1015 1748 jeremybenn 
 
1016 133 markom 
  /* Until all are covered search for best criteria to separate them.  */
1017 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
1018 
  if (end - automata > MAX_AUTOMATA_SIZE)
1019 
    {
1020 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
1021 
      exit (1);
1022 
    }
1023 1748 jeremybenn 
#ifdef HAVE_EXECUTION
1024 
  printf ("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
1025 709 markom 
#endif
1026 371 markom 
 
1027 1748 jeremybenn 
#ifdef HAVE_EXECUTION
1028 
  printf ("Parsing operands data... ");
1029 709 markom 
#endif
1030 1748 jeremybenn 
  op_data =
1031 
    (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE *
1032 
                                      sizeof (struct insn_op_struct));
1033 
  op_start =
1034 
    (struct insn_op_struct **) malloc (num_opcodes *
1035 
                                       sizeof (struct insn_op_struct *));
1036 138 markom 
  cur = op_data;
1037 
  for (i = 0; i < num_opcodes; i++)
1038 
    {
1039 
      op_start[i] = cur;
1040 
      cur = parse_params (&or32_opcodes[i], cur);
1041 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
1042 
        {
1043 1748 jeremybenn 
          fprintf (stderr,
1044 
                   "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
1045 138 markom 
          exit (1);
1046 
        }
1047 
    }
1048 1748 jeremybenn 
#ifdef HAVE_EXECUTION
1049 
  printf ("done.\n");
1050 709 markom 
#endif
1051 133 markom 
}
1052 
 
1053 1748 jeremybenn 
void
1054 
destruct_automata ()
1055 138 markom 
{
1056 
  free (ti);
1057 133 markom 
  free (automata);
1058 138 markom 
  free (op_data);
1059 
  free (op_start);
1060 133 markom 
}
1061 
 
1062 
/* Decodes instruction and returns instruction index.  */
1063 1748 jeremybenn 
int
1064 
insn_decode (unsigned int insn)
1065 138 markom 
{
1066 133 markom 
  unsigned long *a = automata;
1067 138 markom 
  int i;
1068 
  while (!(*a & LEAF_FLAG))
1069 
    {
1070 
      unsigned int first = *a;
1071 703 markom 
      //debug(9, "%i ", a - automata);
1072 138 markom 
      a++;
1073 
      i = (insn >> first) & *a;
1074 
      a++;
1075 
      if (!*(a + i))
1076 1748 jeremybenn 
        {                       /* Invalid instruction found?  */
1077 703 markom 
          //debug(9, "XXX\n", i);
1078 138 markom 
          return -1;
1079 
        }
1080 
      a = automata + *(a + i);
1081 
    }
1082 
  i = *a & ~LEAF_FLAG;
1083 703 markom 
  //debug(9, "%i\n", i);
1084 138 markom 
  /* Final check - do we have direct match?
1085 
     (based on or32_opcodes this should be the only possibility,
1086 
     but in case of invalid/missing instruction we must perform a check)  */
1087 1748 jeremybenn 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
1088 138 markom 
    return i;
1089 
  else
1090 
    return -1;
1091 133 markom 
}
1092 371 markom 
 
1093 
static char disassembled_str[50];
1094 
char *disassembled = &disassembled_str[0];
1095 
 
1096 
/* Automagically does zero- or sign- extension and also finds correct
1097 
   sign bit position if sign extension is correct extension. Which extension
1098 
   is proper is figured out from letter description. */
1099 1748 jeremybenn 
 
1100 879 markom 
unsigned long
1101 1748 jeremybenn 
extend_imm (unsigned long imm, char l)
1102 371 markom 
{
1103 
  unsigned long mask;
1104 
  int letter_bits;
1105 1748 jeremybenn 
 
1106 371 markom 
  /* First truncate all bits above valid range for this letter
1107 
     in case it is zero extend. */
1108 1748 jeremybenn 
  letter_bits = letter_range (l);
1109 371 markom 
  mask = (1 << letter_bits) - 1;
1110 
  imm &= mask;
1111 1748 jeremybenn 
 
1112 371 markom 
  /* Do sign extend if this is the right one. */
1113 1748 jeremybenn 
  if (letter_signed (l) && (imm >> (letter_bits - 1)))
1114 371 markom 
    imm |= (~mask);
1115 
 
1116 
  return imm;
1117 
}
1118 
 
1119 879 markom 
unsigned long
1120 1748 jeremybenn 
or32_extract (param_ch, enc_initial, insn)
1121 371 markom 
     char param_ch;
1122 
     char *enc_initial;
1123 
     unsigned long insn;
1124 
{
1125 
  char *enc;
1126 
  unsigned long ret = 0;
1127 
  int opc_pos = 0;
1128 
  int param_pos = 0;
1129 
 
1130 
  for (enc = enc_initial; *enc != '\0'; enc++)
1131 
    if (*enc == param_ch)
1132 
      {
1133 1748 jeremybenn 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0')
1134 
            && (*(enc - 1) == 'x'))
1135 
          continue;
1136 
        else
1137 
          param_pos++;
1138 371 markom 
      }
1139 
 
1140 
#if DEBUG
1141 1748 jeremybenn 
  printf ("or32_extract: %x ", param_pos);
1142 371 markom 
#endif
1143 
  opc_pos = 32;
1144 1748 jeremybenn 
  for (enc = enc_initial; *enc != '\0';)
1145 
    if ((*enc == '0') && (*(enc + 1) == 'x'))
1146 371 markom 
      {
1147 1748 jeremybenn 
        opc_pos -= 4;
1148 
        if ((param_ch == '0') || (param_ch == '1'))
1149 
          {
1150 
            unsigned long tmp = strtol (enc, NULL, 16);
1151 371 markom 
#if DEBUG
1152 1748 jeremybenn 
            printf (" enc=%s, tmp=%x ", enc, tmp);
1153 371 markom 
#endif
1154 1748 jeremybenn 
            if (param_ch == '0')
1155 
              tmp = 15 - tmp;
1156 
            ret |= tmp << opc_pos;
1157 
          }
1158 
        enc += 3;
1159 371 markom 
      }
1160 1748 jeremybenn 
    else if ((*enc == '0') || (*enc == '1'))
1161 371 markom 
      {
1162 1748 jeremybenn 
        opc_pos--;
1163 
        if (param_ch == *enc)
1164 
          ret |= 1 << opc_pos;
1165 
        enc++;
1166 371 markom 
      }
1167 1748 jeremybenn 
    else if (*enc == param_ch)
1168 371 markom 
      {
1169 1748 jeremybenn 
        opc_pos--;
1170 
        param_pos--;
1171 371 markom 
#if DEBUG
1172 1748 jeremybenn 
        printf ("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos,
1173 
                param_pos);
1174 
#endif
1175 
        if (islower (param_ch))
1176 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
1177 
        else
1178 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
1179 
        enc++;
1180 371 markom 
      }
1181 1748 jeremybenn 
    else if (isalpha (*enc))
1182 371 markom 
      {
1183 1748 jeremybenn 
        opc_pos--;
1184 
        enc++;
1185 371 markom 
      }
1186 1748 jeremybenn 
    else if (*enc == '-')
1187 371 markom 
      {
1188 1748 jeremybenn 
        opc_pos--;
1189 
        enc++;
1190 371 markom 
      }
1191 
    else
1192 
      enc++;
1193 
 
1194 
#if DEBUG
1195 
  printf ("ret=%x\n", ret);
1196 
#endif
1197 
  return ret;
1198 
}
1199 
 
1200 
/* Print register. Used only by print_insn. */
1201 
 
1202 703 markom 
static char *
1203 
or32_print_register (dest, param_ch, encoding, insn)
1204 
     char *dest;
1205 371 markom 
     char param_ch;
1206 
     char *encoding;
1207 
     unsigned long insn;
1208 
{
1209 1748 jeremybenn 
  int regnum = or32_extract (param_ch, encoding, insn);
1210 
 
1211 703 markom 
  sprintf (dest, "r%d", regnum);
1212 1748 jeremybenn 
  while (*dest)
1213 
    dest++;
1214 703 markom 
  return dest;
1215 371 markom 
}
1216 
 
1217 
/* Print immediate. Used only by print_insn. */
1218 
 
1219 703 markom 
static char *
1220 
or32_print_immediate (dest, param_ch, encoding, insn)
1221 
     char *dest;
1222 371 markom 
     char param_ch;
1223 
     char *encoding;
1224 
     unsigned long insn;
1225 
{
1226 
  int imm = or32_extract (param_ch, encoding, insn);
1227 
 
1228 1748 jeremybenn 
  imm = extend_imm (imm, param_ch);
1229 
 
1230 
  if (letter_signed (param_ch))
1231 371 markom 
    {
1232 
      if (imm < 0)
1233 1748 jeremybenn 
        sprintf (dest, "%d", imm);
1234 371 markom 
      else
1235 1748 jeremybenn 
        sprintf (dest, "0x%x", imm);
1236 371 markom 
    }
1237 
  else
1238 703 markom 
    sprintf (dest, "%#x", imm);
1239 1748 jeremybenn 
  while (*dest)
1240 
    dest++;
1241 703 markom 
  return dest;
1242 371 markom 
}
1243 
 
1244 
/* Disassemble one instruction from insn to disassemble.
1245 
   Return the size of the instruction.  */
1246 
 
1247 
int
1248 
disassemble_insn (insn)
1249 
     unsigned long insn;
1250 
{
1251 703 markom 
  return disassemble_index (insn, insn_decode (insn));
1252 
}
1253 371 markom 
 
1254 703 markom 
/* Disassemble one instruction from insn index.
1255 
   Return the size of the instruction.  */
1256 
 
1257 
int
1258 
disassemble_index (insn, index)
1259 
     unsigned long insn;
1260 
     int index;
1261 
{
1262 
  char *dest = disassembled;
1263 371 markom 
  if (index >= 0)
1264 
    {
1265 
      struct or32_opcode const *opcode = &or32_opcodes[index];
1266 
      char *s;
1267 
 
1268 703 markom 
      strcpy (dest, opcode->name);
1269 1748 jeremybenn 
      while (*dest)
1270 
        dest++;
1271 703 markom 
      *dest++ = ' ';
1272 
      *dest = 0;
1273 1748 jeremybenn 
 
1274 371 markom 
      for (s = opcode->args; *s != '\0'; ++s)
1275 1748 jeremybenn 
        {
1276 
          switch (*s)
1277 
            {
1278 
            case '\0':
1279 
              return insn_len (insn);
1280 714 markom 
 
1281 1748 jeremybenn 
            case 'r':
1282 
              dest = or32_print_register (dest, *++s, opcode->encoding, insn);
1283 
              break;
1284 714 markom 
 
1285 1748 jeremybenn 
            default:
1286 
              if (strchr (opcode->encoding, *s))
1287 
                dest =
1288 
                  or32_print_immediate (dest, *s, opcode->encoding, insn);
1289 
              else
1290 
                {
1291 
                  *dest++ = *s;
1292 
                  *dest = 0;
1293 
                }
1294 
            }
1295 
        }
1296 371 markom 
    }
1297 
  else
1298 
    {
1299 
      /* This used to be %8x for binutils.  */
1300 1748 jeremybenn 
      sprintf (dest, ".word 0x%08lx", insn);
1301 
      while (*dest)
1302 
        dest++;
1303 371 markom 
    }
1304 
  return insn_len (insn);
1305 
}

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