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[/] [openrisc/] [trunk/] [or1ksim/] [cpu/] [or32/] [or32.c] - Blame information for rev 485

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1 19 jeremybenn 
/* Table of opcodes for the OpenRISC 1000 ISA.
2 
 
3 
   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
4 
   Copyright (C) 2008 Embecosm Limited
5 
 
6 
   Contributed by Damjan Lampret (lampret@opencores.org).
7 
   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
8 
 
9 
   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 
 
12 
   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 
 
17 
   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 
 
22 
   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 
 
25 
/* 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 
#include <stdio.h>
36 
 
37 
/* Package includes */
38 
#include "opcode/or32.h"
39 
 
40 
/* We treat all letters the same in encode/decode routines so
41 
   we need to assign some characteristics to them like signess etc.*/
42 
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 
};
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 
#ifdef HAVE_EXECUTION
69 
# if SIMPLE_EXECUTION
70 
#  define EFN &l_none
71 
#  define EF(func) &(func)
72 
#  define EFI &l_invalid
73 
# elif COMPLEX_EXECUTION
74 
#  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 
# else /* DYNAMIC_EXECUTION */
82 
#  define EFN &l_none
83 
#  define EF(func) &(gen_ ##func)
84 
#  define EFI &gen_l_invalid
85 
# endif
86 
#else /* HAVE_EXECUTION */
87 
# define EFN &l_none
88 
# define EF(func) EFN
89 
# define EFI EFN
90 
#endif /* HAVE_EXECUTION */
91 
 
92 230 jeremybenn 
CONST struct or32_opcode or1ksim_or32_opcodes[] = {
93 19 jeremybenn 
 
94 
  {"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 
 
303 
  {"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},
307 116 jeremybenn 
  {"l.maci", "rA,I", "01 0x3  ----- AAAAA IIII IIII IIII IIII",
308 19 jeremybenn 
   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 
 
318 
  {"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},
322 104 jeremybenn 
  {"l.lws", "rD,I(rA)", "10 0x2  DDDDD AAAAA IIII IIII IIII IIII",
323 
   EF (l_lws), 0, it_load},
324 19 jeremybenn 
  {"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 
 
333 
  {"l.addi", "rD,rA,I", "10 0x7  DDDDD AAAAA IIII IIII IIII IIII",
334 
   EF (l_add), OR32_W_FLAG, it_arith},
335 114 jeremybenn 
  {"l.addic", "rD,rA,I", "10 0x8  DDDDD AAAAA IIII IIII IIII IIII",
336 
   EF (l_addc), OR32_W_FLAG, it_arith},
337 19 jeremybenn 
  {"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},
341 127 jeremybenn 
#if HAVE_UNSIGNED_XORI
342 
  {"l.xori", "rD,rA,K", "10 0xB  DDDDD AAAAA KKKK KKKK KKKK KKKK",
343 
   EF (l_xor), 0, it_arith},
344 
#else
345 19 jeremybenn 
  {"l.xori", "rD,rA,I", "10 0xB  DDDDD AAAAA IIII IIII IIII IIII",
346 
   EF (l_xor), 0, it_arith},
347 127 jeremybenn 
#endif
348 19 jeremybenn 
  {"l.muli", "rD,rA,I", "10 0xC  DDDDD AAAAA IIII IIII IIII IIII",
349 
   EF (l_mul), 0, it_arith},
350 
  {"l.mfspr", "rD,rA,K", "10 0xD  DDDDD AAAAA KKKK KKKK KKKK KKKK",
351 
   EF (l_mfspr), 0, it_move},
352 
  {"l.slli", "rD,rA,L", "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL",
353 
   EF (l_sll), 0, it_shift},
354 
  {"l.srli", "rD,rA,L", "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL",
355 
   EF (l_srl), 0, it_shift},
356 
  {"l.srai", "rD,rA,L", "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL",
357 
   EF (l_sra), 0, it_shift},
358 122 jeremybenn 
  {"l.rori", "rD,rA,L", "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL",
359 
   EF (l_ror), 0, it_shift},
360 19 jeremybenn 
 
361 
  {"l.sfeqi", "rA,I", "10 0xF  00000 AAAAA IIII IIII IIII IIII",
362 
   EF (l_sfeq), OR32_W_FLAG, it_compare},
363 
  {"l.sfnei", "rA,I", "10 0xF  00001 AAAAA IIII IIII IIII IIII",
364 
   EF (l_sfne), OR32_W_FLAG, it_compare},
365 
  {"l.sfgtui", "rA,I", "10 0xF  00010 AAAAA IIII IIII IIII IIII",
366 
   EF (l_sfgtu), OR32_W_FLAG, it_compare},
367 
  {"l.sfgeui", "rA,I", "10 0xF  00011 AAAAA IIII IIII IIII IIII",
368 
   EF (l_sfgeu), OR32_W_FLAG, it_compare},
369 
  {"l.sfltui", "rA,I", "10 0xF  00100 AAAAA IIII IIII IIII IIII",
370 
   EF (l_sfltu), OR32_W_FLAG, it_compare},
371 
  {"l.sfleui", "rA,I", "10 0xF  00101 AAAAA IIII IIII IIII IIII",
372 
   EF (l_sfleu), OR32_W_FLAG, it_compare},
373 
  {"l.sfgtsi", "rA,I", "10 0xF  01010 AAAAA IIII IIII IIII IIII",
374 
   EF (l_sfgts), OR32_W_FLAG, it_compare},
375 
  {"l.sfgesi", "rA,I", "10 0xF  01011 AAAAA IIII IIII IIII IIII",
376 
   EF (l_sfges), OR32_W_FLAG, it_compare},
377 
  {"l.sfltsi", "rA,I", "10 0xF  01100 AAAAA IIII IIII IIII IIII",
378 
   EF (l_sflts), OR32_W_FLAG, it_compare},
379 
  {"l.sflesi", "rA,I", "10 0xF  01101 AAAAA IIII IIII IIII IIII",
380 
   EF (l_sfles), OR32_W_FLAG, it_compare},
381 
 
382 
  {"l.mtspr", "rA,rB,K", "11 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK",
383 
   EF (l_mtspr), 0, it_move},
384 
  {"l.mac", "rA,rB", "11 0x1  ----- AAAAA BBBB B--- ---- 0x1",
385 
   EF (l_mac), 0, it_mac},
386 
  {"l.msb", "rA,rB", "11 0x1  ----- AAAAA BBBB B--- ---- 0x2",
387 
   EF (l_msb), 0, it_mac},
388 
 
389 
  {"lf.add.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x0",
390 
   EF (lf_add_s), 0, it_float},
391 
  {"lf.sub.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x1",
392 
   EF (lf_sub_s), 0, it_float},
393 
  {"lf.mul.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x2",
394 
   EF (lf_mul_s), 0, it_float},
395 
  {"lf.div.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x3",
396 
   EF (lf_div_s), 0, it_float},
397 
  {"lf.itof.s", "rD,rA", "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x4",
398 
   EF (lf_itof_s), 0, it_float},
399 
  {"lf.ftoi.s", "rD,rA", "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x5",
400 
   EF (lf_ftoi_s), 0, it_float},
401 
  {"lf.rem.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x6",
402 
   EF (lf_rem_s), 0, it_float},
403 
  {"lf.madd.s", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x7",
404 
   EF (lf_madd_s), 0, it_float},
405 
  {"lf.sfeq.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0x8",
406 
   EF (lf_sfeq_s), 0, it_float},
407 
  {"lf.sfne.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0x9",
408 
   EF (lf_sfne_s), 0, it_float},
409 
  {"lf.sfgt.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0xA",
410 
   EF (lf_sfgt_s), 0, it_float},
411 
  {"lf.sfge.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0xB",
412 
   EF (lf_sfge_s), 0, it_float},
413 
  {"lf.sflt.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0xC",
414 
   EF (lf_sflt_s), 0, it_float},
415 
  {"lf.sfle.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x0 0xD",
416 
   EF (lf_sfle_s), 0, it_float},
417 
  {"lf.cust1.s", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0xD ----", EFI,
418 
   0, it_float},
419 
 
420 
  {"lf.add.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0,
421 
   it_float},
422 
  {"lf.sub.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0,
423 
   it_float},
424 
  {"lf.mul.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0,
425 
   it_float},
426 
  {"lf.div.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0,
427 
   it_float},
428 
  {"lf.itof.d", "rD,rA", "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x4", EFI, 0,
429 
   it_float},
430 
  {"lf.ftoi.d", "rD,rA", "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x5", EFI, 0,
431 
   it_float},
432 
  {"lf.rem.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0,
433 
   it_float},
434 
  {"lf.madd.d", "rD,rA,rB", "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0,
435 
   it_float},
436 
  {"lf.sfeq.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0,
437 
   it_float},
438 
  {"lf.sfne.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0,
439 
   it_float},
440 
  {"lf.sfgt.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0,
441 
   it_float},
442 
  {"lf.sfge.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0,
443 
   it_float},
444 
  {"lf.sflt.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0,
445 
   it_float},
446 
  {"lf.sfle.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0,
447 
   it_float},
448 
  {"lf.cust1.d", "rA,rB", "11 0x2  ----- AAAAA BBBB B--- 0xE ----", EFI, 0,
449 
   it_float},
450 
 
451 
  {"l.sd", "I(rA),rB", "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI,
452 
   0, it_store},
453 
  {"l.sw", "I(rA),rB", "11 0x5  IIIII AAAAA BBBB BIII IIII IIII",
454 
   EF (l_sw), 0, it_store},
455 
  {"l.sb", "I(rA),rB", "11 0x6  IIIII AAAAA BBBB BIII IIII IIII",
456 
   EF (l_sb), 0, it_store},
457 
  {"l.sh", "I(rA),rB", "11 0x7  IIIII AAAAA BBBB BIII IIII IIII",
458 
   EF (l_sh), 0, it_store},
459 
 
460 
  {"l.add", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0",
461 
   EF (l_add), OR32_W_FLAG, it_arith},
462 
  {"l.addc", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1",
463 
   EF (l_addc), OR32_W_FLAG, it_arith},
464 
  {"l.sub", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2",
465 
   EF (l_sub), 0, it_arith},
466 
  {"l.and", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3",
467 
   EF (l_and), OR32_W_FLAG, it_arith},
468 
  {"l.or", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4",
469 
   EF (l_or), 0, it_arith},
470 
  {"l.xor", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5",
471 
   EF (l_xor), 0, it_arith},
472 
  {"l.mul", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6",
473 
   EF (l_mul), 0, it_arith},
474 
 
475 
  {"l.sll", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8",
476 
   EF (l_sll), 0, it_shift},
477 
  {"l.srl", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8",
478 
   EF (l_srl), 0, it_shift},
479 
  {"l.sra", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8",
480 
   EF (l_sra), 0, it_shift},
481 122 jeremybenn 
  {"l.ror", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8",
482 
   EF (l_ror), 0, it_shift},
483 19 jeremybenn 
  {"l.div", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x9",
484 
   EF (l_div), 0, it_arith},
485 
  {"l.divu", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xA",
486 
   EF (l_divu), 0, it_arith},
487 118 jeremybenn 
  {"l.mulu", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB",
488 
   EF (l_mulu), 0, it_arith},
489 19 jeremybenn 
  {"l.extbs", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 01-- 0xC",
490 
   EF (l_extbs), 0, it_move},
491 
  {"l.exths", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 00-- 0xC",
492 
   EF (l_exths), 0, it_move},
493 
  {"l.extws", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 00-- 0xD",
494 
   EF (l_extws), 0, it_move},
495 
  {"l.extbz", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 11-- 0xC",
496 
   EF (l_extbz), 0, it_move},
497 
  {"l.exthz", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 10-- 0xC",
498 
   EF (l_exthz), 0, it_move},
499 
  {"l.extwz", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 01-- 0xD",
500 
   EF (l_extwz), 0, it_move},
501 
  {"l.cmov", "rD,rA,rB", "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE",
502 
   EF (l_cmov), OR32_R_FLAG, it_move},
503 
  {"l.ff1", "rD,rA", "11 0x8  DDDDD AAAAA ---- --00 ---- 0xF",
504 
   EF (l_ff1), 0, it_arith},
505 115 jeremybenn 
  {"l.fl1", "rD,rA", "11 0x8  DDDDD AAAAA ---- --01 ---- 0xF",
506 
   EF (l_fl1), 0, it_arith},
507 19 jeremybenn 
 
508 
  {"l.sfeq", "rA,rB", "11 0x9  00000 AAAAA BBBB B--- ---- ----",
509 
   EF (l_sfeq), OR32_W_FLAG, it_compare},
510 
  {"l.sfne", "rA,rB", "11 0x9  00001 AAAAA BBBB B--- ---- ----",
511 
   EF (l_sfne), OR32_W_FLAG, it_compare},
512 
  {"l.sfgtu", "rA,rB", "11 0x9  00010 AAAAA BBBB B--- ---- ----",
513 
   EF (l_sfgtu), OR32_W_FLAG, it_compare},
514 
  {"l.sfgeu", "rA,rB", "11 0x9  00011 AAAAA BBBB B--- ---- ----",
515 
   EF (l_sfgeu), OR32_W_FLAG, it_compare},
516 
  {"l.sfltu", "rA,rB", "11 0x9  00100 AAAAA BBBB B--- ---- ----",
517 
   EF (l_sfltu), OR32_W_FLAG, it_compare},
518 
  {"l.sfleu", "rA,rB", "11 0x9  00101 AAAAA BBBB B--- ---- ----",
519 
   EF (l_sfleu), OR32_W_FLAG, it_compare},
520 
  {"l.sfgts", "rA,rB", "11 0x9  01010 AAAAA BBBB B--- ---- ----",
521 
   EF (l_sfgts), OR32_W_FLAG, it_compare},
522 
  {"l.sfges", "rA,rB", "11 0x9  01011 AAAAA BBBB B--- ---- ----",
523 
   EF (l_sfges), OR32_W_FLAG, it_compare},
524 
  {"l.sflts", "rA,rB", "11 0x9  01100 AAAAA BBBB B--- ---- ----",
525 
   EF (l_sflts), OR32_W_FLAG, it_compare},
526 
  {"l.sfles", "rA,rB", "11 0x9  01101 AAAAA BBBB B--- ---- ----",
527 
   EF (l_sfles), OR32_W_FLAG, it_compare},
528 
 
529 
  {"l.cust5", "rD,rA,rB,L,K", "11 0xC  DDDDD AAAAA BBBB BLLL LLLK KKKK", EFI,
530 
   0, it_unknown},
531 
  {"l.cust6", "", "11 0xD  ----- ----- ---- ---- ---- ----", EFI,
532 
   0, it_unknown},
533 
  {"l.cust7", "", "11 0xE  ----- ----- ---- ---- ---- ----", EFI,
534 
   0, it_unknown},
535 
  {"l.cust8", "", "11 0xF  ----- ----- ---- ---- ---- ----", EFI,
536 
   0, it_unknown},
537 
 
538 
/* This section should not be defined in or1ksim, since it contains duplicates,
539 
   which would cause machine builder to complain.  */
540 
#ifdef HAS_CUST
541 
  {"l.cust5_1", "rD", "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI,
542 
   0, it_unknown},
543 
  {"l.cust5_2", "rD,rA", "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI,
544 
   0, it_unknown},
545 
  {"l.cust5_3", "rD,rA,rB", "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI,
546 
   0, it_unknown},
547 
 
548 
  {"l.cust6_1", "rD", "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI,
549 
   0, it_unknown},
550 
  {"l.cust6_2", "rD,rA", "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI,
551 
   0, it_unknown},
552 
  {"l.cust6_3", "rD,rA,rB", "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI,
553 
   0, it_unknown},
554 
 
555 
  {"l.cust7_1", "rD", "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI,
556 
   0, it_unknown},
557 
  {"l.cust7_2", "rD,rA", "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI,
558 
   0, it_unknown},
559 
  {"l.cust7_3", "rD,rA,rB", "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI,
560 
   0, it_unknown},
561 
 
562 
  {"l.cust8_1", "rD", "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI,
563 
   0, it_unknown},
564 
  {"l.cust8_2", "rD,rA", "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI,
565 
   0, it_unknown},
566 
  {"l.cust8_3", "rD,rA,rB", "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI,
567 
   0, it_unknown},
568 
#endif
569 
 
570 
  {"", "", "", EFI, 0, 0} /* Dummy entry, not included in num_opcodes.  This
571 
                                 * lets code examine entry i+1 without checking
572 
                                 * if we've run off the end of the table.  */
573 
};
574 
 
575 
#undef EFI
576 
#undef EFN
577 
#undef EF
578 
 
579 230 jeremybenn 
static CONST int NUM_OPCODES =
580 
  ((sizeof (or1ksim_or32_opcodes)) / (sizeof (struct or32_opcode))) - 1;
581 19 jeremybenn 
 
582 
/* Calculates instruction length in bytes. Always 4 for OR32. */
583 
int
584 230 jeremybenn 
or1ksim_insn_len (int insn_index)
585 19 jeremybenn 
{
586 
  insn_index = 0;                /* Just to get rid that warning.  */
587 
  return 4;
588 
}
589 
 
590 
/* Is individual insn's operand signed or unsigned? */
591 230 jeremybenn 
static int
592 19 jeremybenn 
letter_signed (char l)
593 
{
594 
  CONST struct or32_letter *pletter;
595 
 
596 
  for (pletter = or32_letters; pletter->letter != '\0'; pletter++)
597 
    if (pletter->letter == l)
598 
      return pletter->sign;
599 
 
600 
  printf ("letter_signed(%c): Unknown letter.\n", l);
601 
  return 0;
602 
}
603 
 
604 
/* Simple cache for letter ranges */
605 
static int range_cache[256] = { 0 };
606 
 
607 
/* Number of letters in the individual lettered operand. */
608 230 jeremybenn 
static int
609 19 jeremybenn 
letter_range (char l)
610 
{
611 
  CONST struct or32_opcode *pinsn;
612 
  char *enc;
613 
  int range = 0;
614 
 
615 
  /* Is value cached? */
616 
  if ((range = range_cache[(unsigned char) l]))
617 
    return range;
618 
 
619 230 jeremybenn 
  for (pinsn = or1ksim_or32_opcodes; strlen (pinsn->name); pinsn++)
620 19 jeremybenn 
    {
621 
      if (strchr (pinsn->encoding, l))
622 
        {
623 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
624 
            if ((*enc == '0') && (*(enc + 1) == 'x'))
625 
              enc += 2;
626 
            else if (*enc == l)
627 
              range++;
628 
          return range_cache[(unsigned char) l] = range;
629 
        }
630 
    }
631 
 
632 
  printf ("\nABORT: letter_range(%c): Never used letter.\n", l);
633 
  exit (1);
634 
}
635 
 
636 
/* Returns name of the specified instruction index */
637 
CONST char *
638 230 jeremybenn 
or1ksim_insn_name (int index)
639 19 jeremybenn 
{
640 230 jeremybenn 
  if (index >= 0 && index < NUM_OPCODES)
641 
    return or1ksim_or32_opcodes[index].name;
642 19 jeremybenn 
  else
643 
    return "???";
644 
}
645 
 
646 
/*** Finite automata for instruction decoding building code ***/
647 
 
648 
/* Find symbols in encoding.  */
649 230 jeremybenn 
static unsigned long
650 19 jeremybenn 
insn_extract (param_ch, enc_initial)
651 
     char param_ch;
652 
     char *enc_initial;
653 
{
654 
  char *enc;
655 
  unsigned long ret = 0;
656 
  unsigned opc_pos = 32;
657 
  for (enc = enc_initial; *enc != '\0';)
658 
    if ((*enc == '0') && (*(enc + 1) == 'x'))
659 
      {
660 
        unsigned long tmp = strtol (enc + 2, NULL, 16);
661 
        opc_pos -= 4;
662 
        if (param_ch == '0' || param_ch == '1')
663 
          {
664 
            if (param_ch == '0')
665 
              tmp = 15 - tmp;
666 
            ret |= tmp << opc_pos;
667 
          }
668 
        enc += 3;
669 
      }
670 
    else
671 
      {
672 240 julius 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha ((int)*enc))
673 19 jeremybenn 
          {
674 
            opc_pos--;
675 
            if (param_ch == *enc)
676 
              ret |= 1 << opc_pos;
677 
          }
678 
        enc++;
679 
      }
680 
  return ret;
681 
}
682 
 
683 
#define MAX_AUTOMATA_SIZE (1200)
684 
#define MAX_OP_TABLE_SIZE (1200)
685 
#define MAX_LEN           (8)
686 
 
687 
#ifndef MIN
688 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
689 
#endif
690 
 
691 230 jeremybenn 
unsigned long *or1ksim_automata;
692 19 jeremybenn 
int nuncovered;
693 
int curpass = 0;
694 
 
695 
/* MM: Struct that holds runtime build information about instructions.  */
696 230 jeremybenn 
struct temp_insn_struct *or1ksim_ti;
697 19 jeremybenn 
 
698 230 jeremybenn 
static struct insn_op_struct *op_data;
699 19 jeremybenn 
 
700 230 jeremybenn 
struct insn_op_struct **or1ksim_op_start;
701 
 
702 19 jeremybenn 
static void
703 
or32_debug (int level, const char *format, ...)
704 
{
705 
#if DEBUG
706 
  char *p;
707 
  va_list ap;
708 
 
709 
  if ((p = malloc (1000)) == NULL)
710 
    return;
711 
  va_start (ap, format);
712 
  (void) vsnprintf (p, 1000, format, ap);
713 
  va_end (ap);
714 
  printf ("%s\n", p);
715 
  fflush (stdout);
716 
  free (p);
717 
#endif
718 
}
719 
 
720 
/* Recursive utility function used to find best match and to build automata.  */
721 
static unsigned long *
722 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
723 
{
724 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
725 
  unsigned long cur_mask = mask;
726 
  unsigned long *next;
727 
 
728 230 jeremybenn 
  for (i = 0; i < NUM_OPCODES; i++)
729 
    if (or1ksim_ti[i].in_pass == pass)
730 19 jeremybenn 
      {
731 230 jeremybenn 
        cur_mask &= or1ksim_ti[i].insn_mask;
732 19 jeremybenn 
        ninstr++;
733 
        last_match = i;
734 
      }
735 
 
736 
  or32_debug (8, "%08X %08lX\n", mask, cur_mask);
737 
  if (ninstr == 0)
738 
    return 0;
739 
  if (ninstr == 1)
740 
    {
741 
      /* Leaf holds instruction index. */
742 230 jeremybenn 
      or32_debug (8, "%i>I%i %s\n", cur - or1ksim_automata, last_match,
743 
             or1ksim_or32_opcodes[last_match].name);
744 19 jeremybenn 
      *cur = LEAF_FLAG | last_match;
745 
      cur++;
746 
      nuncovered--;
747 
    }
748 
  else
749 
    {
750 
      /* Find longest match.  */
751 
      for (i = 0; i < 32; i++)
752 
        {
753 
          int len;
754 
          for (len = best_len + 1; len < MIN (MAX_LEN, 33 - i); len++)
755 
            {
756 
              unsigned long m = (1UL << ((unsigned long) len)) - 1;
757 
              or32_debug (9, " (%i(%08lX & %08lX>>%i = %08lX, %08lX)", len, m,
758 
                     cur_mask, i, (cur_mask >> (unsigned) i),
759 
                     (cur_mask >> (unsigned) i) & m);
760 
              if ((m & (cur_mask >> (unsigned) i)) == m)
761 
                {
762 
                  best_len = len;
763 
                  best_first = i;
764 
                  or32_debug (9, "!");
765 
                }
766 
              else
767 
                break;
768 
            }
769 
        }
770 
      or32_debug (9, "\n");
771 
      if (!best_len)
772 
        {
773 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr,
774 
                   mask);
775 230 jeremybenn 
          for (i = 0; i < NUM_OPCODES; i++)
776 
            if (or1ksim_ti[i].in_pass == pass)
777 
              fprintf (stderr, "%s ", or1ksim_or32_opcodes[i].name);
778 19 jeremybenn 
 
779 
          fprintf (stderr, "\n");
780 
          exit (1);
781 
        }
782 230 jeremybenn 
      or32_debug (8, "%i> #### %i << %i (%i) ####\n", cur - or1ksim_automata, best_len,
783 19 jeremybenn 
             best_first, ninstr);
784 
      *cur = best_first;
785 
      cur++;
786 
      *cur = (1 << best_len) - 1;
787 
      cur++;
788 
      next = cur;
789 
      /* Allocate space for pointers.  */
790 
      cur += 1 << best_len;
791 
      cur_mask = (1 << (unsigned long) best_len) - 1;
792 
 
793 
      for (i = 0; i < (1 << (unsigned long) best_len); i++)
794 
        {
795 
          int j;
796 
          unsigned long *c;
797 
          curpass++;
798 230 jeremybenn 
          for (j = 0; j < NUM_OPCODES; j++)
799 
            if (or1ksim_ti[j].in_pass == pass
800 
                && ((or1ksim_ti[j].insn >> best_first) & cur_mask) ==
801 19 jeremybenn 
                (unsigned long) i
802 230 jeremybenn 
                && ((or1ksim_ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
803 
              or1ksim_ti[j].in_pass = curpass;
804 19 jeremybenn 
 
805 
          or32_debug (9, "%08X %08lX %i\n", mask, cur_mask, best_first);
806 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
807 
          if (c)
808 
            {
809 230 jeremybenn 
              or32_debug (8, "%i> #%X -> %u\n", next - or1ksim_automata, i,
810 
                     cur - or1ksim_automata);
811 
              *next = cur - or1ksim_automata;
812 19 jeremybenn 
              cur = c;
813 
            }
814 
          else
815 
            {
816 230 jeremybenn 
              or32_debug (8, "%i> N/A\n", next - or1ksim_automata);
817 19 jeremybenn 
              *next = 0;
818 
            }
819 
          next++;
820 
        }
821 
    }
822 
  return cur;
823 
}
824 
 
825 
/* Returns number of nonzero bits. */
826 
static int
827 
num_ones (unsigned long value)
828 
{
829 
  int c = 0;
830 
  while (value)
831 
    {
832 
      if (value & 1)
833 
        c++;
834 
      value >>= 1;
835 
    }
836 
  return c;
837 
}
838 
 
839 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
840 230 jeremybenn 
   Parameters are stored in or1ksim_ti struct.  */
841 19 jeremybenn 
 
842 
static struct insn_op_struct *
843 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
844 
{
845 
  char *args = opcode->args;
846 
  int i, type;
847 
  int num_cur_op = 0;;
848 
 
849 
  i = 0;
850 
  type = 0;
851 
  /* In case we don't have any parameters, we add dummy read from r0.  */
852 
  if (!(*args))
853 
    {
854 
      cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
855 
      cur->data = 0;
856 
      or32_debug (9, "#%08lX %08lX\n", cur->type, cur->data);
857 
      cur++;
858 
      return cur;
859 
    }
860 
 
861 
  while (*args != '\0')
862 
    {
863 
      if (*args == 'r')
864 
        {
865 
          args++;
866 
          type |= OPTYPE_REG;
867 
          if (*args == 'D')
868 
            type |= OPTYPE_DST;
869 
        }
870 240 julius 
      else if (isalpha ((int)*args))
871 19 jeremybenn 
        {
872 
          unsigned long arg;
873 
          arg = insn_extract (*args, opcode->encoding);
874 
          or32_debug (9, "%s : %08lX ------\n", opcode->name, arg);
875 
          if (letter_signed (*args))
876 
            {
877 
              type |= OPTYPE_SIG;
878 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
879 
            }
880 
 
881 
          num_cur_op = 0;
882 
          /* Split argument to sequences of consecutive ones.  */
883 
          while (arg)
884 
            {
885 
              int shr = 0;
886 
              unsigned long tmp = arg, mask = 0;
887 
              while ((tmp & 1) == 0)
888 
                {
889 
                  shr++;
890 
                  tmp >>= 1;
891 
                }
892 
              while (tmp & 1)
893 
                {
894 
                  mask++;
895 
                  tmp >>= 1;
896 
                }
897 
              cur->type = type | shr;
898 
              cur->data = mask;
899 
              arg &= ~(((1 << mask) - 1) << shr);
900 
              or32_debug (6, "|%08lX %08lX\n", cur->type, cur->data);
901 
              cur++;
902 
              num_cur_op++;
903 
            }
904 
          args++;
905 
        }
906 
      else if (*args == '(')
907 
        {
908 
          /* Next param is displacement.  Later we will treat them as one operand.  */
909 
          /* Set the OPTYPE_DIS flag on all insn_op_structs that belong to this
910 
           * operand */
911 
          while (num_cur_op > 0)
912 
            {
913 
              cur[-num_cur_op].type |= type | OPTYPE_DIS;
914 
              num_cur_op--;
915 
            }
916 
          cur[-1].type |= OPTYPE_OP;
917 
          or32_debug (9, ">%08lX %08lX\n", cur->type, cur->data);
918 
          type = 0;
919 
          i++;
920 
          args++;
921 
        }
922 
      else if (*args == OPERAND_DELIM)
923 
        {
924 
          cur--;
925 
          cur->type = type | cur->type | OPTYPE_OP;
926 
          or32_debug (9, ">%08lX %08lX\n", cur->type, cur->data);
927 
          cur++;
928 
          type = 0;
929 
          i++;
930 
          args++;
931 
        }
932 
      else if (*args == '0')
933 
        {
934 
          cur->type = type;
935 
          cur->data = 0;
936 
          or32_debug (9, ">%08lX %08lX\n", cur->type, cur->data);
937 
          cur++;
938 
          type = 0;
939 
          i++;
940 
          args++;
941 
        }
942 
      else if (*args == ')')
943 
        args++;
944 
      else
945 
        {
946 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
947 
          exit (1);
948 
        }
949 
    }
950 
  cur--;
951 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
952 
  or32_debug (9, "#%08lX %08lX\n", cur->type, cur->data);
953 
  cur++;
954 
  return cur;
955 
}
956 
 
957 220 jeremybenn 
/* -------------------------------------------------------------------------- */
958 230 jeremybenn 
/*!Constructs new automata based on or1ksim_or32_opcodes array.
959 19 jeremybenn 
 
960 220 jeremybenn 
   @param[in] quiet  If non-zero (TRUE) do not print informational messages. */
961 
/* -------------------------------------------------------------------------- */
962 19 jeremybenn 
void
963 230 jeremybenn 
or1ksim_build_automata (int  quiet)
964 19 jeremybenn 
{
965 
  int i;
966 
  unsigned long *end;
967 
  struct insn_op_struct *cur;
968 
 
969 230 jeremybenn 
  or1ksim_automata =
970 19 jeremybenn 
    (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
971 230 jeremybenn 
  or1ksim_ti =
972 19 jeremybenn 
    (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) *
973 230 jeremybenn 
                                        NUM_OPCODES);
974 19 jeremybenn 
 
975 230 jeremybenn 
  nuncovered = NUM_OPCODES;
976 19 jeremybenn 
 
977 
#ifdef HAVE_EXECUTION
978 220 jeremybenn 
  if (!quiet)
979 
    {
980 
      printf ("Building automata... ");
981 
    }
982 19 jeremybenn 
#endif
983 
 
984 
  /* Build temporary information about instructions.  */
985 230 jeremybenn 
  for (i = 0; i < NUM_OPCODES; i++)
986 19 jeremybenn 
    {
987 
      unsigned long ones, zeros;
988 230 jeremybenn 
      char *encoding = or1ksim_or32_opcodes[i].encoding;
989 19 jeremybenn 
      ones = insn_extract ('1', encoding);
990 
      zeros = insn_extract ('0', encoding);
991 230 jeremybenn 
      or1ksim_ti[i].insn_mask = ones | zeros;
992 
      or1ksim_ti[i].insn = ones;
993 
      or1ksim_ti[i].in_pass = curpass = 0;
994 
      /*debug(9, "%s: %s %08X %08X\n", or1ksim_or32_opcodes[i].name,
995 
         or1ksim_or32_opcodes[i].encoding, or1ksim_ti[i].insn_mask, or1ksim_ti[i].insn); */
996 19 jeremybenn 
    }
997 
 
998 
  /* Until all are covered search for best criteria to separate them.  */
999 230 jeremybenn 
  end = cover_insn (or1ksim_automata, curpass, 0xFFFFFFFF);
1000 
  if (end - or1ksim_automata > MAX_AUTOMATA_SIZE)
1001 19 jeremybenn 
    {
1002 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
1003 
      exit (1);
1004 
    }
1005 
#ifdef HAVE_EXECUTION
1006 220 jeremybenn 
  if (!quiet)
1007 
    {
1008 230 jeremybenn 
      printf ("done, num uncovered: %i/%i.\n", nuncovered, NUM_OPCODES);
1009 220 jeremybenn 
    }
1010 19 jeremybenn 
#endif
1011 
 
1012 
#ifdef HAVE_EXECUTION
1013 220 jeremybenn 
  if (!quiet)
1014 
    {
1015 
      printf ("Parsing operands data... ");
1016 
    }
1017 19 jeremybenn 
#endif
1018 
  op_data =
1019 
    (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE *
1020 
                                      sizeof (struct insn_op_struct));
1021 230 jeremybenn 
  or1ksim_op_start =
1022 
    (struct insn_op_struct **) malloc (NUM_OPCODES *
1023 19 jeremybenn 
                                       sizeof (struct insn_op_struct *));
1024 
  cur = op_data;
1025 230 jeremybenn 
  for (i = 0; i < NUM_OPCODES; i++)
1026 19 jeremybenn 
    {
1027 230 jeremybenn 
      or1ksim_op_start[i] = cur;
1028 
      cur = parse_params (&or1ksim_or32_opcodes[i], cur);
1029 19 jeremybenn 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
1030 
        {
1031 
          fprintf (stderr,
1032 
                   "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
1033 
          exit (1);
1034 
        }
1035 
    }
1036 
#ifdef HAVE_EXECUTION
1037 220 jeremybenn 
  if (!quiet)
1038 
    {
1039 
      printf ("done.\n");
1040 
    }
1041 19 jeremybenn 
#endif
1042 
}
1043 
 
1044 
void
1045 230 jeremybenn 
or1ksim_destruct_automata ()
1046 19 jeremybenn 
{
1047 230 jeremybenn 
  free (or1ksim_ti);
1048 
  free (or1ksim_automata);
1049 19 jeremybenn 
  free (op_data);
1050 230 jeremybenn 
  free (or1ksim_op_start);
1051 19 jeremybenn 
}
1052 
 
1053 
/* Decodes instruction and returns instruction index.  */
1054 
int
1055 230 jeremybenn 
or1ksim_insn_decode (unsigned int insn)
1056 19 jeremybenn 
{
1057 230 jeremybenn 
  unsigned long *a = or1ksim_automata;
1058 19 jeremybenn 
  int i;
1059 
  while (!(*a & LEAF_FLAG))
1060 
    {
1061 
      unsigned int first = *a;
1062 230 jeremybenn 
      //debug(9, "%i ", a - or1ksim_automata);
1063 19 jeremybenn 
      a++;
1064 
      i = (insn >> first) & *a;
1065 
      a++;
1066 
      if (!*(a + i))
1067 
        {                       /* Invalid instruction found?  */
1068 
          //debug(9, "XXX\n", i);
1069 
          return -1;
1070 
        }
1071 230 jeremybenn 
      a = or1ksim_automata + *(a + i);
1072 19 jeremybenn 
    }
1073 
  i = *a & ~LEAF_FLAG;
1074 
  //debug(9, "%i\n", i);
1075 
  /* Final check - do we have direct match?
1076 230 jeremybenn 
     (based on or1ksim_or32_opcodes this should be the only possibility,
1077 19 jeremybenn 
     but in case of invalid/missing instruction we must perform a check)  */
1078 230 jeremybenn 
  if ((or1ksim_ti[i].insn_mask & insn) == or1ksim_ti[i].insn)
1079 19 jeremybenn 
    return i;
1080 
  else
1081 
    return -1;
1082 
}
1083 
 
1084 
static char disassembled_str[50];
1085 230 jeremybenn 
char *or1ksim_disassembled = &disassembled_str[0];
1086 19 jeremybenn 
 
1087 420 jeremybenn 
/* trace data */
1088 
int           trace_dest_reg;
1089 
int           trace_store_addr_reg;
1090 
unsigned int  trace_store_imm;
1091 
int           trace_store_val_reg;
1092 
int           trace_store_width;
1093 458 julius 
int           trace_dest_spr;
1094 420 jeremybenn 
 
1095 19 jeremybenn 
/* Automagically does zero- or sign- extension and also finds correct
1096 
   sign bit position if sign extension is correct extension. Which extension
1097 
   is proper is figured out from letter description. */
1098 
 
1099 
unsigned long
1100 230 jeremybenn 
or1ksim_extend_imm (unsigned long imm, char l)
1101 19 jeremybenn 
{
1102 
  unsigned long mask;
1103 
  int letter_bits;
1104 
 
1105 
  /* First truncate all bits above valid range for this letter
1106 
     in case it is zero extend. */
1107 
  letter_bits = letter_range (l);
1108 
  mask = (1 << letter_bits) - 1;
1109 
  imm &= mask;
1110 
 
1111 
  /* Do sign extend if this is the right one. */
1112 
  if (letter_signed (l) && (imm >> (letter_bits - 1)))
1113 
    imm |= (~mask);
1114 
 
1115 
  return imm;
1116 
}
1117 
 
1118 
unsigned long
1119 230 jeremybenn 
or1ksim_or32_extract (param_ch, enc_initial, insn)
1120 19 jeremybenn 
     char param_ch;
1121 
     char *enc_initial;
1122 
     unsigned long insn;
1123 
{
1124 
  char *enc;
1125 
  unsigned long ret = 0;
1126 
  int opc_pos = 0;
1127 
  int param_pos = 0;
1128 
 
1129 
  for (enc = enc_initial; *enc != '\0'; enc++)
1130 
    if (*enc == param_ch)
1131 
      {
1132 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0')
1133 
            && (*(enc - 1) == 'x'))
1134 
          continue;
1135 
        else
1136 
          param_pos++;
1137 
      }
1138 
 
1139 
#if DEBUG
1140 230 jeremybenn 
  printf ("or1ksim_or32_extract: %x ", param_pos);
1141 19 jeremybenn 
#endif
1142 
  opc_pos = 32;
1143 
  for (enc = enc_initial; *enc != '\0';)
1144 
    if ((*enc == '0') && (*(enc + 1) == 'x'))
1145 
      {
1146 
        opc_pos -= 4;
1147 
        if ((param_ch == '0') || (param_ch == '1'))
1148 
          {
1149 
            unsigned long tmp = strtol (enc, NULL, 16);
1150 
#if DEBUG
1151 
            printf (" enc=%s, tmp=%x ", enc, tmp);
1152 
#endif
1153 
            if (param_ch == '0')
1154 
              tmp = 15 - tmp;
1155 
            ret |= tmp << opc_pos;
1156 
          }
1157 
        enc += 3;
1158 
      }
1159 
    else if ((*enc == '0') || (*enc == '1'))
1160 
      {
1161 
        opc_pos--;
1162 
        if (param_ch == *enc)
1163 
          ret |= 1 << opc_pos;
1164 
        enc++;
1165 
      }
1166 
    else if (*enc == param_ch)
1167 
      {
1168 
        opc_pos--;
1169 
        param_pos--;
1170 
#if DEBUG
1171 
        printf ("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos,
1172 
                param_pos);
1173 
#endif
1174 240 julius 
        if (islower ((int) param_ch))
1175 19 jeremybenn 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
1176 
        else
1177 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
1178 
        enc++;
1179 
      }
1180 240 julius 
    else if (isalpha ((int)*enc))
1181 19 jeremybenn 
      {
1182 
        opc_pos--;
1183 
        enc++;
1184 
      }
1185 
    else if (*enc == '-')
1186 
      {
1187 
        opc_pos--;
1188 
        enc++;
1189 
      }
1190 
    else
1191 
      enc++;
1192 
 
1193 
#if DEBUG
1194 
  printf ("ret=%x\n", ret);
1195 
#endif
1196 
  return ret;
1197 
}
1198 
 
1199 
/* Print register. Used only by print_insn. */
1200 
 
1201 
static char *
1202 
or32_print_register (dest, param_ch, encoding, insn)
1203 
     char *dest;
1204 
     char param_ch;
1205 
     char *encoding;
1206 
     unsigned long insn;
1207 
{
1208 230 jeremybenn 
  int regnum = or1ksim_or32_extract (param_ch, encoding, insn);
1209 19 jeremybenn 
 
1210 
  sprintf (dest, "r%d", regnum);
1211 
  while (*dest)
1212 
    dest++;
1213 
  return dest;
1214 
}
1215 
 
1216 
/* Print immediate. Used only by print_insn. */
1217 
 
1218 
static char *
1219 
or32_print_immediate (dest, param_ch, encoding, insn)
1220 
     char *dest;
1221 
     char param_ch;
1222 
     char *encoding;
1223 
     unsigned long insn;
1224 
{
1225 230 jeremybenn 
  int imm = or1ksim_or32_extract (param_ch, encoding, insn);
1226 19 jeremybenn 
 
1227 230 jeremybenn 
  imm = or1ksim_extend_imm (imm, param_ch);
1228 19 jeremybenn 
 
1229 
  if (letter_signed (param_ch))
1230 
    {
1231 
      if (imm < 0)
1232 
        sprintf (dest, "%d", imm);
1233 
      else
1234 
        sprintf (dest, "0x%x", imm);
1235 
    }
1236 
  else
1237 
    sprintf (dest, "%#x", imm);
1238 
  while (*dest)
1239 
    dest++;
1240 
  return dest;
1241 
}
1242 
 
1243 
/* Disassemble one instruction from insn to disassemble.
1244 
   Return the size of the instruction.  */
1245 
 
1246 
int
1247 230 jeremybenn 
or1ksim_disassemble_insn (insn)
1248 19 jeremybenn 
     unsigned long insn;
1249 
{
1250 230 jeremybenn 
  return or1ksim_disassemble_index (insn, or1ksim_insn_decode (insn));
1251 19 jeremybenn 
}
1252 
 
1253 
/* Disassemble one instruction from insn index.
1254 
   Return the size of the instruction.  */
1255 
 
1256 
int
1257 230 jeremybenn 
or1ksim_disassemble_index (insn, index)
1258 19 jeremybenn 
     unsigned long insn;
1259 
     int index;
1260 
{
1261 230 jeremybenn 
  char *dest = or1ksim_disassembled;
1262 19 jeremybenn 
  if (index >= 0)
1263 
    {
1264 230 jeremybenn 
      struct or32_opcode const *opcode = &or1ksim_or32_opcodes[index];
1265 19 jeremybenn 
      char *s;
1266 
 
1267 
      strcpy (dest, opcode->name);
1268 
      while (*dest)
1269 
        dest++;
1270 
      *dest++ = ' ';
1271 
      *dest = 0;
1272 
 
1273 
      for (s = opcode->args; *s != '\0'; ++s)
1274 
        {
1275 
          switch (*s)
1276 
            {
1277 
            case '\0':
1278 230 jeremybenn 
              return or1ksim_insn_len (insn);
1279 19 jeremybenn 
 
1280 
            case 'r':
1281 
              dest = or32_print_register (dest, *++s, opcode->encoding, insn);
1282 
              break;
1283 
 
1284 
            default:
1285 
              if (strchr (opcode->encoding, *s))
1286 
                dest =
1287 
                  or32_print_immediate (dest, *s, opcode->encoding, insn);
1288 
              else
1289 
                {
1290 
                  *dest++ = *s;
1291 
                  *dest = 0;
1292 
                }
1293 
            }
1294 
        }
1295 
    }
1296 
  else
1297 
    {
1298 
      /* This used to be %8x for binutils.  */
1299 
      sprintf (dest, ".word 0x%08lx", insn);
1300 
      while (*dest)
1301 
        dest++;
1302 
    }
1303 230 jeremybenn 
  return or1ksim_insn_len (insn);
1304 19 jeremybenn 
}
1305 420 jeremybenn 
 
1306 
 
1307 
/* -------------------------------------------------------------------------- */
1308 
/*!Disassemble one instruction for tracing.
1309 
 
1310 
   A simplified form of  or1ksim_disassemble_index.
1311 
 
1312 
   @param[in] insn  The instruction to disassemble
1313 
   @param[in] index  Index into the opcode table.                             */
1314 
/* -------------------------------------------------------------------------- */
1315 
void
1316 
or1ksim_disassemble_trace_index (unsigned long int  insn,
1317 
                                 int                index)
1318 
{
1319 
  int                i;
1320 
  char              *dest        = or1ksim_disassembled;
1321 
 
1322 
  /* Set trace result defaults. */
1323 
  trace_dest_reg       = -1;
1324 458 julius 
  trace_dest_spr       = -1;
1325 420 jeremybenn 
  trace_store_addr_reg = -1;
1326 
  trace_store_imm      =  0;
1327 
  trace_store_val_reg  = -1;
1328 
  trace_store_width    =  0;     /* Non-zero if we have a store */
1329 
 
1330 
  if (index >= 0)
1331 
    {
1332 
      const int  OPC_WIDTH = 8;
1333 
 
1334 
      struct or32_opcode const *opcode = &or1ksim_or32_opcodes[index];
1335 
      char                     *s;
1336 
 
1337 
      /* Is it a store opcode? */
1338 
      if (0 == strcmp ("l.sb", opcode->name))
1339 
        {
1340 
          trace_store_width = 1;
1341 
        }
1342 
      else if (0 == strcmp ("l.sh", opcode->name))
1343 
        {
1344 
          trace_store_width = 2;
1345 
        }
1346 
      else if (0 == strcmp ("l.sw", opcode->name))
1347 
        {
1348 
          trace_store_width = 4;
1349 
        }
1350 
 
1351 458 julius 
      /* Is it a move to SPR opcode? */
1352 
      if (0 == strcmp ("l.mtspr", opcode->name))
1353 
        {
1354 
          trace_dest_spr = 1;
1355 
        }
1356 
 
1357 420 jeremybenn 
      /* Copy the opcode and pad */
1358 
      strcpy (dest, opcode->name);
1359 
 
1360 
      for (i = 0; i < OPC_WIDTH; i++)
1361 
        {
1362 
          if ('\0' == dest[0])
1363 
            {
1364 
              dest[0] = ' ';
1365 
              dest[1] = '\0';
1366 
            }
1367 
 
1368 
          dest++;
1369 
        }
1370 
 
1371 
      for (s = opcode->args; *s != '\0'; ++s)
1372 
        {
1373 
          switch (*s)
1374 
            {
1375 
            case '\0':
1376 
              break;
1377 
 
1378 
            case 'r':
1379 
              dest = or32_print_register (dest, *++s, opcode->encoding, insn);
1380 
 
1381 
              switch (*s)
1382 
                {
1383 
                case 'D':
1384 
                  trace_dest_reg =
1385 
                    or1ksim_or32_extract (*s, opcode->encoding, insn);
1386 
                  break;
1387 
 
1388 
                case 'A':
1389 
                  if (0 != trace_store_width)
1390 
                    {
1391 
                      trace_store_addr_reg =
1392 
                        or1ksim_or32_extract (*s, opcode->encoding, insn);
1393 
                    }
1394 
                  break;
1395 
 
1396 
                case 'B':
1397 
                  if (0 != trace_store_width)
1398 
                    {
1399 
                      trace_store_val_reg =
1400 
                        or1ksim_or32_extract (*s, opcode->encoding, insn);
1401 
                    }
1402 
                  break;
1403 
 
1404 
                }
1405 
 
1406 
              break;
1407 
 
1408 
            default:
1409 
              if (strchr (opcode->encoding, *s))
1410 
                {
1411 
                  dest = or32_print_immediate (dest, *s, opcode->encoding,
1412 
                                               insn);
1413 
 
1414 
                  /* If we have a store instruction, save the immediate. */
1415 
                  if (0 != trace_store_width)
1416 
                    {
1417 
                      trace_store_imm =
1418 
                        or1ksim_or32_extract (*s, opcode->encoding, insn);
1419 
                      trace_store_imm =
1420 
                        or1ksim_extend_imm (trace_store_imm, *s);
1421 
                    }
1422 458 julius 
 
1423 
                  if (1 == trace_dest_spr)
1424 
                  {
1425 
                          trace_dest_spr =
1426 
                                  or1ksim_or32_extract ('K', opcode->encoding,
1427 
                                                        insn);
1428 
                          trace_dest_reg =
1429 
                                  or1ksim_or32_extract ('A', opcode->encoding,
1430 
                                                        insn);
1431 
                  }
1432 
 
1433 420 jeremybenn 
                }
1434 
              else
1435 
                {
1436 
                  *dest++ = *s;
1437 
                  *dest = 0;
1438 
                }
1439 
            }
1440 
        }
1441 
    }
1442 
  else
1443 
    {
1444 
      /* This used to be %8x for binutils.  */
1445 
      sprintf (dest, ".word 0x%08lx", insn);
1446 
      while (*dest)
1447 
        dest++;
1448 
    }
1449 
}       /* or1ksim_disassemble_trace_index () */

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