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[/] [or1k/] [branches/] [stable_0_2_x/] [gen_or1k_isa/] [sources/] [opcode/] [or32.c] - Blame information for rev 1309

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1 133 markom 
/* Table of opcodes for the OpenRISC 1000 ISA.
2 
   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
3 
   Contributed by Damjan Lampret (lampret@opencores.org).
4 
 
5 717 markom 
This file is part of gen_or1k_isa, or1ksim, GDB and GAS.
6 133 markom 
 
7 
This program is free software; you can redistribute it and/or modify
8 
it under the terms of the GNU General Public License as published by
9 
the Free Software Foundation; either version 2 of the License, or
10 
(at your option) any later version.
11 
 
12 
This program is distributed in the hope that it will be useful,
13 
but WITHOUT ANY WARRANTY; without even the implied warranty of
14 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 
GNU General Public License for more details.
16 
 
17 
You should have received a copy of the GNU General Public License
18 
along with this program; if not, write to the Free Software
19 
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
20 
 
21 1114 lampret 
/*
22 
 * $Log: not supported by cvs2svn $
23 1309 phoenix 
 * Revision 1.35  2004/07/19 23:07:37  phoenix
24 
 * Gyorgy Jeney: extensive cleanup
25 
 *
26 1308 phoenix 
 * Revision 1.34  2004/06/27 22:56:48  lampret
27 
 * Updated instruction set descriptions. Changed FP instructions encoding.
28 
 *
29 1295 lampret 
 * Revision 1.33  2004/05/09 19:52:31  lampret
30 
 * Changed desciption of the l.cust5 insns
31 
 *
32 1285 lampret 
 * Revision 1.31  2003/07/01 19:34:49  csanchez
33 
 * Added support for l.addc instruction.
34 
 *
35 1169 csanchez 
 * Revision 1.30  2003/01/28 03:49:24  lampret
36 
 * Added cvs log keywords
37 
 *
38 1114 lampret 
 */
39 
 
40 133 markom 
/* We treat all letters the same in encode/decode routines so
41 
   we need to assign some characteristics to them like signess etc.*/
42 
#include <string.h>
43 
#include <stdio.h>
44 
#include <stdlib.h>
45 371 markom 
#include <ctype.h>
46 133 markom 
 
47 371 markom 
 
48 138 markom 
#ifdef HAVE_CONFIG_H
49 
# include "config.h"
50 
#endif
51 133 markom 
#include "opcode/or32.h"
52 
 
53 
/* **INDENT-OFF** */
54 
 
55 
CONST struct or32_letter or32_letters[] =
56 
{
57 
{ 'A', NUM_UNSIGNED },
58 
{ 'B', NUM_UNSIGNED },
59 
{ 'D', NUM_UNSIGNED },
60 
{ 'I', NUM_SIGNED },
61 
{ 'K', NUM_UNSIGNED },
62 
{ 'L', NUM_UNSIGNED },
63 
{ 'N', NUM_SIGNED },
64 
{ '0', NUM_UNSIGNED },
65 
{ '\0', 0 }     /* dummy entry */
66 
};
67 
 
68 
/* Opcode encoding:
69 
   machine[31:30]: first two bits of opcode
70 
                   00 - neither of source operands is GPR
71 
                   01 - second source operand is GPR (rB)
72 
                   10 - first source operand is GPR (rA)
73 
                   11 - both source operands are GPRs (rA and rB)
74 
   machine[29:26]: next four bits of opcode
75 
   machine[25:00]: instruction operands (specific to individual instruction)
76 
 
77 
  Recommendation: irrelevant instruction bits should be set with a value of
78 
  bits in same positions of instruction preceding current instruction in the
79 
  code (when assembling).
80 
*/
81 
 
82 706 markom 
#if defined HAS_EXECUTION && SIMPLE_EXECUTION
83 133 markom 
#define EFN &l_none
84 
#define EF(func) &(func)
85 
#define EFI &l_invalid
86 
#else  /* HAS_EXECUTION */
87 706 markom 
 
88 
#ifndef HAS_EXECUTION
89 
#define EFN &l_none
90 133 markom 
#define EF(func) EFN
91 
#define EFI EFN
92 706 markom 
#else  /* !HAS_EXECUTION */
93 
#define EFN "l_none"
94 
#define EFI "l_invalid"
95 
#ifdef __GNUC__
96 
#define EF(func) #func
97 
#else
98 
#define EF(func) "func"
99 
#endif
100 
#endif /* !HAS_EXECUTION */
101 
 
102 133 markom 
#endif /* HAS_EXECUTION */
103 
 
104 
CONST struct or32_opcode or32_opcodes[] =
105 
{
106 
 
107 
{ "l.j",       "N",            "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY },
108 
{ "l.jal",     "N",            "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY },
109 138 markom 
{ "l.bnf",     "N",            "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG},
110 
{ "l.bf",      "N",            "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG },
111 676 markom 
{ "l.nop",     "K",            "00 0x5  01--- ----- KKKK KKKK KKKK KKKK", EF(l_nop), 0 },
112 133 markom 
{ "l.movhi",   "rD,K",         "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/
113 
{ "l.macrc",   "rD",           "00 0x6  DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/
114 676 markom 
 
115 133 markom 
{ "l.sys",     "K",            "00 0x8  00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 },
116 144 chris 
{ "l.trap",    "K",            "00 0x8  01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0 }, /* CZ 21/06/01 */
117 133 markom 
{ "l.msync",   "",             "00 0x8  10000 00000 0000 0000 0000 0000", EFN, 0 },
118 
{ "l.psync",   "",             "00 0x8  10100 00000 0000 0000 0000 0000", EFN, 0 },
119 
{ "l.csync",   "",             "00 0x8  11000 00000 0000 0000 0000 0000", EFN, 0 },
120 
{ "l.rfe",     "",             "00 0x9  ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY },
121 
 
122 
{ "lv.all_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
123 
{ "lv.all_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
124 
{ "lv.all_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
125 
{ "lv.all_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
126 
{ "lv.all_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
127 
{ "lv.all_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
128 
{ "lv.all_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
129 
{ "lv.all_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
130 
{ "lv.all_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
131 
{ "lv.all_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
132 
{ "lv.all_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
133 
{ "lv.all_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
134 
{ "lv.any_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 },
135 
{ "lv.any_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 },
136 
{ "lv.any_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 },
137 
{ "lv.any_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 },
138 
{ "lv.any_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 },
139 
{ "lv.any_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 },
140 
{ "lv.any_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 },
141 
{ "lv.any_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 },
142 
{ "lv.any_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 },
143 
{ "lv.any_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 },
144 
{ "lv.any_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 },
145 
{ "lv.any_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 },
146 
{ "lv.add.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 },
147 
{ "lv.add.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 },
148 
{ "lv.adds.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 },
149 
{ "lv.adds.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 },
150 
{ "lv.addu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 },
151 
{ "lv.addu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 },
152 
{ "lv.addus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 },
153 
{ "lv.addus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 },
154 
{ "lv.and",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 },
155 
{ "lv.avg.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 },
156 
{ "lv.avg.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 },
157 
{ "lv.cmp_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 },
158 
{ "lv.cmp_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 },
159 
{ "lv.cmp_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 },
160 
{ "lv.cmp_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 },
161 
{ "lv.cmp_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 },
162 
{ "lv.cmp_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 },
163 
{ "lv.cmp_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 },
164 
{ "lv.cmp_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 },
165 
{ "lv.cmp_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 },
166 
{ "lv.cmp_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 },
167 
{ "lv.cmp_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 },
168 
{ "lv.cmp_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 },
169 
{ "lv.madds.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 },
170 
{ "lv.max.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 },
171 
{ "lv.max.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 },
172 
{ "lv.merge.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 },
173 
{ "lv.merge.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 },
174 
{ "lv.min.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 },
175 
{ "lv.min.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 },
176 
{ "lv.msubs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 },
177 
{ "lv.muls.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 },
178 
{ "lv.nand",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 },
179 
{ "lv.nor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 },
180 
{ "lv.or",     "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 },
181 
{ "lv.pack.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 },
182 
{ "lv.pack.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 },
183 
{ "lv.packs.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 },
184 
{ "lv.packs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 },
185 
{ "lv.packus.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 },
186 
{ "lv.packus.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 },
187 
{ "lv.perm.n", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 },
188 
{ "lv.rl.b",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 },
189 
{ "lv.rl.h",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 },
190 
{ "lv.sll.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 },
191 
{ "lv.sll.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 },
192 
{ "lv.sll",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 },
193 
{ "lv.srl.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 },
194 
{ "lv.srl.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 },
195 
{ "lv.sra.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 },
196 
{ "lv.sra.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 },
197 
{ "lv.srl",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 },
198 
{ "lv.sub.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 },
199 
{ "lv.sub.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 },
200 
{ "lv.subs.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 },
201 
{ "lv.subs.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 },
202 
{ "lv.subu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 },
203 
{ "lv.subu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 },
204 
{ "lv.subus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 },
205 
{ "lv.subus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 },
206 
{ "lv.unpack.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 },
207 
{ "lv.unpack.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 },
208 
{ "lv.xor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 },
209 
{ "lv.cust1",  "",             "00 0xA  ----- ----- ---- ---- 0xC ----", EFI, 0 },
210 
{ "lv.cust2",  "",             "00 0xA  ----- ----- ---- ---- 0xD ----", EFI, 0 },
211 
{ "lv.cust3",  "",             "00 0xA  ----- ----- ---- ---- 0xE ----", EFI, 0 },
212 
{ "lv.cust4",  "",             "00 0xA  ----- ----- ---- ---- 0xF ----", EFI, 0 },
213 
 
214 
{ "l.jr",      "rB",           "01 0x1  ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY },
215 
{ "l.jalr",    "rB",           "01 0x2  ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY },
216 676 markom 
{ "l.maci",    "rB,I",         "01 0x3  IIIII ----- BBBB BIII IIII IIII", EF(l_mac), 0 },
217 174 markom 
{ "l.cust1",   "",             "01 0xC  ----- ----- ---- ---- ---- ----", EF(l_cust1), 0 },
218 
{ "l.cust2",   "",             "01 0xD  ----- ----- ---- ---- ---- ----", EF(l_cust2), 0 },
219 
{ "l.cust3",   "",             "01 0xE  ----- ----- ---- ---- ---- ----", EF(l_cust3), 0 },
220 
{ "l.cust4",   "",             "01 0xF  ----- ----- ---- ---- ---- ----", EF(l_cust4), 0 },
221 133 markom 
 
222 
{ "l.ld",      "rD,I(rA)",     "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
223 
{ "l.lwz",     "rD,I(rA)",     "10 0x1  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 },
224 
{ "l.lws",     "rD,I(rA)",     "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
225 
{ "l.lbz",     "rD,I(rA)",     "10 0x3  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 },
226 
{ "l.lbs",     "rD,I(rA)",     "10 0x4  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 },
227 
{ "l.lhz",     "rD,I(rA)",     "10 0x5  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 },
228 
{ "l.lhs",     "rD,I(rA)",     "10 0x6  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 },
229 
 
230 676 markom 
{ "l.addi",    "rD,rA,I",      "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), OR32_W_FLAG },
231 133 markom 
{ "l.addic",   "rD,rA,I",      "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
232 676 markom 
{ "l.andi",    "rD,rA,K",      "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), OR32_W_FLAG },
233 133 markom 
{ "l.ori",     "rD,rA,K",      "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0  },
234 
{ "l.xori",    "rD,rA,I",      "10 0xB  DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 },
235 801 markom 
{ "l.muli",    "rD,rA,I",      "10 0xC  DDDDD AAAAA IIII IIII IIII IIII", EF(l_mul), 0 },
236 676 markom 
{ "l.mfspr",   "rD,rA,K",      "10 0xD  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 },
237 133 markom 
{ "l.slli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 },
238 
{ "l.srli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 },
239 
{ "l.srai",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 },
240 
{ "l.rori",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 },
241 
 
242 138 markom 
{ "l.sfeqi",   "rA,I",         "10 0xF  00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG },
243 
{ "l.sfnei",   "rA,I",         "10 0xF  00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG },
244 
{ "l.sfgtui",  "rA,I",         "10 0xF  00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG },
245 
{ "l.sfgeui",  "rA,I",         "10 0xF  00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG },
246 
{ "l.sfltui",  "rA,I",         "10 0xF  00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG },
247 
{ "l.sfleui",  "rA,I",         "10 0xF  00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG },
248 
{ "l.sfgtsi",  "rA,I",         "10 0xF  01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG },
249 
{ "l.sfgesi",  "rA,I",         "10 0xF  01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG },
250 
{ "l.sfltsi",  "rA,I",         "10 0xF  01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG },
251 
{ "l.sflesi",  "rA,I",         "10 0xF  01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG },
252 133 markom 
 
253 676 markom 
{ "l.mtspr",   "rA,rB,K",      "11 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
254 
{ "l.mac",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x1", EF(l_mac), 0 }, /*MM*/
255 
{ "l.msb",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x2", EF(l_msb), 0 }, /*MM*/
256 
 
257 1295 lampret 
{ "lf.add.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x0", EF(lf_add_s), 0 },
258 
{ "lf.sub.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x1", EF(lf_sub_s), 0 },
259 
{ "lf.mul.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x2", EF(lf_mul_s), 0 },
260 
{ "lf.div.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x3", EF(lf_div_s), 0 },
261 
{ "lf.itof.s",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x4", EF(lf_itof_s), 0 },
262 
{ "lf.ftoi.s",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x5", EF(lf_ftoi_s), 0 },
263 
{ "lf.rem.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x6", EF(lf_rem_s), 0 },
264 
{ "lf.madd.s",  "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x7", EF(lf_madd_s), 0 },
265 
{ "lf.sfeq.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0x8", EF(lf_sfeq_s), 0 },
266 
{ "lf.sfne.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0x9", EF(lf_sfne_s), 0 },
267 
{ "lf.sfgt.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xA", EF(lf_sfgt_s), 0 },
268 
{ "lf.sfge.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xB", EF(lf_sfge_s), 0 },
269 
{ "lf.sflt.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xC", EF(lf_sflt_s), 0 },
270 
{ "lf.sfle.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xD", EF(lf_sfle_s), 0 },
271 
{ "lf.cust1.s", "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0xD ----", EFI, 0 },
272 
 
273 
{ "lf.add.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
274 
{ "lf.sub.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
275 
{ "lf.mul.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
276 
{ "lf.div.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
277 
{ "lf.itof.d",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x4", EFI, 0 },
278 
{ "lf.ftoi.d",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x5", EFI, 0 },
279 
{ "lf.rem.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
280 
{ "lf.madd.d",  "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
281 
{ "lf.sfeq.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
282 
{ "lf.sfne.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
283 
{ "lf.sfgt.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
284 
{ "lf.sfge.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
285 
{ "lf.sflt.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
286 
{ "lf.sfle.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
287 
{ "lf.cust1.d", "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0xE ----", EFI, 0 },
288 
 
289 133 markom 
{ "l.sd",      "I(rA),rB",     "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 },
290 
{ "l.sw",      "I(rA),rB",     "11 0x5  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 },
291 
{ "l.sb",      "I(rA),rB",     "11 0x6  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 },
292 
{ "l.sh",      "I(rA),rB",     "11 0x7  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
293 
 
294 676 markom 
{ "l.add",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), OR32_W_FLAG },
295 1169 csanchez 
{ "l.addc",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1", EF(l_addc), OR32_W_FLAG },
296 133 markom 
{ "l.sub",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 },
297 676 markom 
{ "l.and",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), OR32_W_FLAG },
298 133 markom 
{ "l.or",      "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 },
299 
{ "l.xor",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 },
300 
{ "l.mul",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 },
301 676 markom 
 
302 133 markom 
{ "l.sll",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 },
303 
{ "l.srl",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 },
304 
{ "l.sra",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 },
305 
{ "l.ror",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 },
306 1034 lampret 
{ "l.div",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x9", EF(l_div), 0 },
307 
{ "l.divu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xA", EF(l_divu), 0 },
308 133 markom 
{ "l.mulu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 },
309 1295 lampret 
{ "l.extbs",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xC", EF(l_extbs), 0 },
310 
{ "l.exths",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xC", EF(l_exths), 0 },
311 
{ "l.extws",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xD", EF(l_extws), 0 },
312 
{ "l.extbz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 11-- 0xC", EF(l_extbz), 0 },
313 
{ "l.exthz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 10-- 0xC", EF(l_exthz), 0 },
314 
{ "l.extwz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xD", EF(l_extwz), 0 },
315 676 markom 
{ "l.cmov",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE", EF(l_cmov), OR32_R_FLAG },
316 133 markom 
{ "l.ff1",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 },
317 
 
318 138 markom 
{ "l.sfeq",    "rA,rB",        "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG },
319 
{ "l.sfne",    "rA,rB",        "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG },
320 
{ "l.sfgtu",   "rA,rB",        "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG },
321 
{ "l.sfgeu",   "rA,rB",        "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG },
322 
{ "l.sfltu",   "rA,rB",        "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG },
323 
{ "l.sfleu",   "rA,rB",        "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG },
324 
{ "l.sfgts",   "rA,rB",        "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG },
325 
{ "l.sfges",   "rA,rB",        "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG },
326 
{ "l.sflts",   "rA,rB",        "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG },
327 
{ "l.sfles",   "rA,rB",        "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
328 133 markom 
 
329 1285 lampret 
{ "l.cust5",   "rD,rA,rB,L,K", "11 0xC  DDDDD AAAAA BBBB BLLL LLLK KKKK", EFI, 0 },
330 133 markom 
{ "l.cust6",   "",             "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
331 
{ "l.cust7",   "",             "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
332 
{ "l.cust8",   "",             "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
333 
 
334 221 markom 
/* This section should not be defined in or1ksim, since it contains duplicates,
335 
   which would cause machine builder to complain.  */
336 374 simons 
#ifdef HAS_CUST
337 221 markom 
{ "l.cust5_1",   "rD",         "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
338 
{ "l.cust5_2",   "rD,rA"   ,   "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
339 
{ "l.cust5_3",   "rD,rA,rB",   "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
340 
 
341 
{ "l.cust6_1",   "rD",         "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
342 
{ "l.cust6_2",   "rD,rA"   ,   "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
343 
{ "l.cust6_3",   "rD,rA,rB",   "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
344 
 
345 
{ "l.cust7_1",   "rD",         "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
346 
{ "l.cust7_2",   "rD,rA"   ,   "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
347 
{ "l.cust7_3",   "rD,rA,rB",   "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
348 
 
349 
{ "l.cust8_1",   "rD",         "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
350 
{ "l.cust8_2",   "rD,rA"   ,   "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
351 
{ "l.cust8_3",   "rD,rA,rB",   "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
352 
#endif
353 
 
354 133 markom 
{ "", "", "", EFI, 0 }           /* Dummy entry, not included in num_opcodes.  This
355 
                           lets code examine entry i+1 without checking
356 
                           if we've run off the end of the table.  */
357 
};
358 
 
359 
#undef EFI
360 
#undef EFN
361 
#undef EF
362 
 
363 
/* **INDENT-ON** */
364 
 
365 371 markom 
/* Define dummy, if debug is not defined.  */
366 
#if !defined HAS_DEBUG
367 
void debug(int level, const char *format, ...)
368 
{
369 
  /* Just to get rid of warnings.  */
370 
  format = level = 0;
371 
}
372 
#endif
373 133 markom 
 
374 371 markom 
CONST int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
375 
 
376 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
377 
int
378 
insn_len(int insn_index)
379 133 markom 
{
380 
  insn_index = 0; /* Just to get rid that warning.  */
381 
  return 4;
382 
}
383 
 
384 
/* Is individual insn's operand signed or unsigned? */
385 138 markom 
int
386 
letter_signed(char l)
387 133 markom 
{
388 
  CONST struct or32_letter *pletter;
389 
 
390 
  for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
391 
    if (pletter->letter == l)
392 
      return pletter->sign;
393 
 
394 
  printf("letter_signed(%c): Unknown letter.\n", l);
395 
  return 0;
396 
}
397 
 
398 703 markom 
/* Simple cache for letter ranges */
399 
static int range_cache[256] = {0};
400 
 
401 133 markom 
/* Number of letters in the individual lettered operand. */
402 138 markom 
int
403 
letter_range(char l)
404 133 markom 
{
405 
  CONST struct or32_opcode *pinsn;
406 
  char *enc;
407 
  int range = 0;
408 703 markom 
 
409 
  /* Is value cached? */
410 1308 phoenix 
  if ((range = range_cache[(unsigned char)l])) return range;
411 133 markom 
 
412 138 markom 
  for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
413 
    {
414 
      if (strchr(pinsn->encoding,l))
415 
        {
416 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
417 
            if ((*enc == '0') && (*(enc+1) == 'x'))
418 
              enc += 2;
419 
            else if (*enc == l)
420 
              range++;
421 703 markom 
          return range_cache[(unsigned char)l] = range;
422 133 markom 
        }
423 
    }
424 703 markom 
 
425 133 markom 
  printf("\nABORT: letter_range(%c): Never used letter.\n", l);
426 
  exit(1);
427 
}
428 
 
429 
/* MM: Returns index of given instruction name.  */
430 138 markom 
int
431 
insn_index (char *insn)
432 
{
433 133 markom 
  int i, found = -1;
434 371 markom 
  for (i = 0; i < num_opcodes; i++)
435 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
436 
      {
437 
        found = i;
438 
        break;
439 
      }
440 133 markom 
  return found;
441 
}
442 
 
443 717 markom 
/* Returns name of the specified instruction index */
444 
CONST char *
445 
insn_name(int index)
446 138 markom 
{
447 371 markom 
  if (index >= 0 && index < num_opcodes)
448 133 markom 
    return or32_opcodes[index].name;
449 
  else
450 
    return "???";
451 
}
452 
 
453 717 markom 
void
454 
l_none()
455 138 markom 
{
456 133 markom 
}
457 
 
458 
/*** Finite automata for instruction decoding building code ***/
459 
 
460 
/* Find simbols in encoding.  */
461 706 markom 
unsigned long
462 133 markom 
insn_extract(param_ch, enc_initial)
463 
     char param_ch;
464 
     char *enc_initial;
465 
{
466 
  char *enc;
467 
  unsigned long ret = 0;
468 
  unsigned opc_pos = 32;
469 
  for (enc = enc_initial; *enc != '\0'; )
470 
    if ((*enc == '0') && (*(enc+1) == 'x'))
471 
      {
472 
        unsigned long tmp = strtol(enc+2, NULL, 16);
473 
        opc_pos -= 4;
474 138 markom 
        if (param_ch == '0' || param_ch == '1')
475 
          {
476 
            if (param_ch == '0')
477 
              tmp = 15 - tmp;
478 
            ret |= tmp << opc_pos;
479 
          }
480 133 markom 
        enc += 3;
481 
      }
482 138 markom 
    else
483 
      {
484 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
485 
          {
486 
            opc_pos--;
487 
            if (param_ch == *enc)
488 
              ret |= 1 << opc_pos;
489 
          }
490 
        enc++;
491 133 markom 
      }
492 
  return ret;
493 
}
494 
 
495 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
496 
#define MAX_OP_TABLE_SIZE (1200)
497 133 markom 
#define LEAF_FLAG         (0x80000000)
498 
#define MAX_LEN           (8)
499 
 
500 
#ifndef MIN
501 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
502 
#endif
503 
 
504 
unsigned long *automata;
505 
int nuncovered;
506 
int curpass = 0;
507 
 
508 138 markom 
/* MM: Struct that hold runtime build information about instructions.  */
509 
struct temp_insn_struct
510 
{
511 
  unsigned long insn;
512 
  unsigned long insn_mask;
513 
  int in_pass;
514 
} *ti;
515 
 
516 
struct insn_op_struct *op_data, **op_start;
517 
 
518 
/* Recursive utility function used to find best match and to build automata.  */
519 
 
520 
static unsigned long *
521 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
522 
{
523 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
524 
  unsigned long cur_mask = mask;
525 
  unsigned long *next;
526 
 
527 
  for (i = 0; i < num_opcodes; i++)
528 138 markom 
    if (ti[i].in_pass == pass)
529 
      {
530 
        cur_mask &= ti[i].insn_mask;
531 
        ninstr++;
532 
        last_match = i;
533 
      }
534 
 
535 344 markom 
  debug(8, "%08X %08X\n", mask, cur_mask);
536 138 markom 
  if (ninstr == 0)
537 
    return 0;
538 
  if (ninstr == 1)
539 
    {
540 
      /* Leaf holds instruction index. */
541 344 markom 
      debug(8, "%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
542 138 markom 
      *cur = LEAF_FLAG | last_match;
543 
      cur++;
544 
      nuncovered--;
545 
    } else {
546 
      /* Find longest match.  */
547 
      for (i = 0; i < 32; i++)
548 
        {
549 
          int len;
550 
          for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
551 
            {
552 
              unsigned long m = (1UL << ((unsigned long)len)) - 1;
553 344 markom 
              debug(9, " (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);
554 138 markom 
              if ((m & (cur_mask >> (unsigned)i)) == m)
555 
                {
556 
                  best_len = len;
557 
                  best_first = i;
558 344 markom 
                  debug(9, "!");
559 138 markom 
                }
560 
              else
561 
                break;
562 
            }
563 
        }
564 344 markom 
      debug(9, "\n");
565 138 markom 
      if (!best_len)
566 
        {
567 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
568 
          for (i = 0; i < num_opcodes; i++)
569 
            if (ti[i].in_pass == pass)
570 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
571 
 
572 
          fprintf (stderr, "\n");
573 
          exit (1);
574 
        }
575 344 markom 
      debug(8, "%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
576 138 markom 
      *cur = best_first;
577 
      cur++;
578 
      *cur = (1 << best_len) - 1;
579 
      cur++;
580 
      next = cur;
581 
      /* Allocate space for pointers.  */
582 
      cur += 1 << best_len;
583 
      cur_mask = (1 << (unsigned long)best_len) - 1;
584 
 
585 
      for (i = 0; i < (1 << (unsigned long)best_len); i++)
586 
        {
587 
          int j;
588 
          unsigned long *c;
589 
          curpass++;
590 
          for (j = 0; j < num_opcodes; j++)
591 
            if (ti[j].in_pass == pass
592 371 markom 
                && ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i
593 138 markom 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
594 
              ti[j].in_pass = curpass;
595 
 
596 344 markom 
          debug(9, "%08X %08X %i\n", mask, cur_mask, best_first);
597 138 markom 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
598 
          if (c)
599 
            {
600 344 markom 
              debug(8, "%i> #%X -> %u\n", next - automata, i, cur - automata);
601 138 markom 
              *next = cur - automata;
602 
              cur = c;
603 
            }
604 
          else
605 
            {
606 344 markom 
              debug(8, "%i> N/A\n", next - automata);
607 138 markom 
              *next = 0;
608 
            }
609 
          next++;
610 
        }
611 133 markom 
    }
612 138 markom 
  return cur;
613 
}
614 133 markom 
 
615 138 markom 
/* Returns number of nonzero bits. */
616 
static int
617 
num_ones (unsigned long value)
618 
{
619 
  int c = 0;
620 
  while (value)
621 
    {
622 
      if (value & 1)
623 
        c++;
624 
      value >>= 1;
625 133 markom 
    }
626 138 markom 
  return c;
627 
}
628 133 markom 
 
629 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
630 
   Parameters are stored in ti struct.  */
631 
 
632 
static struct insn_op_struct *
633 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
634 
{
635 
  char *args = opcode->args;
636 
  int i, type;
637 
 
638 
  i = 0;
639 
  type = 0;
640 262 markom 
  /* In case we don't have any parameters, we add dummy read from r0.  */
641 
  if (!(*args)) {
642 263 markom 
    cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
643 262 markom 
    cur->data = 0;
644 355 markom 
    debug(9, "#%08X %08X\n", cur->type, cur->data);
645 262 markom 
    cur++;
646 
    return cur;
647 
  }
648 
 
649 138 markom 
  while (*args != '\0')
650 
    {
651 
      if (*args == 'r')
652 
        {
653 
          args++;
654 
          type |= OPTYPE_REG;
655 133 markom 
        }
656 138 markom 
      else if (isalpha (*args))
657 
        {
658 
          unsigned long arg;
659 
          arg = insn_extract(*args, opcode->encoding);
660 355 markom 
          debug(9, "%s : %08X ------\n", opcode->name, arg);
661 138 markom 
          if (letter_signed (*args))
662 
            {
663 
              type |= OPTYPE_SIG;
664 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
665 
            }
666 
 
667 
          /* Split argument to sequences of consecutive ones.  */
668 
          while (arg)
669 
            {
670 
              int shr = 0;
671 
              unsigned long tmp = arg, mask = 0;
672 
              while ((tmp & 1) == 0)
673 
                {
674 
                  shr++;
675 
                  tmp >>= 1;
676 
                }
677 
              while (tmp & 1)
678 
                {
679 
                  mask++;
680 
                  tmp >>= 1;
681 
                }
682 
              cur->type = type | shr;
683 
              cur->data = mask;
684 
              arg &= ~(((1 << mask) - 1) << shr);
685 355 markom 
              debug(6, "|%08X %08X\n", cur->type, cur->data);
686 138 markom 
              cur++;
687 
            }
688 
          args++;
689 
        }
690 
      else if (*args == '(')
691 
        {
692 
          /* Next param is displacement.  Later we will treat them as one operand.  */
693 
          cur--;
694 
          cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP;
695 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
696 138 markom 
          cur++;
697 
          type = 0;
698 
          i++;
699 
          args++;
700 
        }
701 
      else if (*args == OPERAND_DELIM)
702 
        {
703 
          cur--;
704 
          cur->type = type | cur->type | OPTYPE_OP;
705 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
706 138 markom 
          cur++;
707 
          type = 0;
708 
          i++;
709 
          args++;
710 
        }
711 
      else if (*args == '0')
712 
        {
713 
          cur->type = type;
714 
          cur->data = 0;
715 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
716 138 markom 
          cur++;
717 
          type = 0;
718 
          i++;
719 
          args++;
720 
        }
721 
      else if (*args == ')')
722 
        args++;
723 
      else
724 
        {
725 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
726 
          exit (1);
727 
        }
728 133 markom 
    }
729 138 markom 
  cur--;
730 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
731 355 markom 
  debug(9, "#%08X %08X\n", cur->type, cur->data);
732 138 markom 
  cur++;
733 133 markom 
  return cur;
734 
}
735 
 
736 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
737 
 
738 
void
739 
build_automata()
740 
{
741 371 markom 
  int i;
742 133 markom 
  unsigned long *end;
743 138 markom 
  struct insn_op_struct *cur;
744 
 
745 133 markom 
  automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
746 138 markom 
  ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
747 133 markom 
 
748 
  nuncovered = num_opcodes;
749 709 markom 
 
750 
#ifdef HAS_EXECUTION
751 138 markom 
  printf("Building automata... ");
752 709 markom 
#endif
753 
 
754 133 markom 
  /* Build temporary information about instructions.  */
755 138 markom 
  for (i = 0; i < num_opcodes; i++)
756 
    {
757 
      unsigned long ones, zeros;
758 
      char *encoding = or32_opcodes[i].encoding;
759 
      ones  = insn_extract('1', encoding);
760 
      zeros = insn_extract('0', encoding);
761 
      ti[i].insn_mask = ones | zeros;
762 
      ti[i].insn = ones;
763 
      ti[i].in_pass = curpass = 0;
764 344 markom 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
765 138 markom 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
766 
    }
767 133 markom 
 
768 
  /* Until all are covered search for best criteria to separate them.  */
769 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
770 
  if (end - automata > MAX_AUTOMATA_SIZE)
771 
    {
772 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
773 
      exit (1);
774 
    }
775 709 markom 
#ifdef HAS_EXECUTION
776 138 markom 
  printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
777 709 markom 
#endif
778 371 markom 
 
779 709 markom 
#ifdef HAS_EXECUTION
780 138 markom 
  printf("Parsing operands data... ");
781 709 markom 
#endif
782 138 markom 
  op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
783 
  op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
784 
  cur = op_data;
785 
  for (i = 0; i < num_opcodes; i++)
786 
    {
787 
      op_start[i] = cur;
788 
      cur = parse_params (&or32_opcodes[i], cur);
789 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
790 
        {
791 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
792 
          exit (1);
793 
        }
794 
    }
795 709 markom 
#ifdef HAS_EXECUTION
796 138 markom 
  printf("done.\n");
797 709 markom 
#endif
798 133 markom 
}
799 
 
800 138 markom 
void destruct_automata ()
801 
{
802 
  free (ti);
803 133 markom 
  free (automata);
804 138 markom 
  free (op_data);
805 
  free (op_start);
806 133 markom 
}
807 
 
808 
/* Decodes instruction and returns instruction index.  */
809 138 markom 
int insn_decode (unsigned int insn)
810 
{
811 133 markom 
  unsigned long *a = automata;
812 138 markom 
  int i;
813 
  while (!(*a & LEAF_FLAG))
814 
    {
815 
      unsigned int first = *a;
816 703 markom 
      //debug(9, "%i ", a - automata);
817 138 markom 
      a++;
818 
      i = (insn >> first) & *a;
819 
      a++;
820 
      if (!*(a + i))
821 
        { /* Invalid instruction found?  */
822 703 markom 
          //debug(9, "XXX\n", i);
823 138 markom 
          return -1;
824 
        }
825 
      a = automata + *(a + i);
826 
    }
827 
  i = *a & ~LEAF_FLAG;
828 703 markom 
  //debug(9, "%i\n", i);
829 138 markom 
  /* Final check - do we have direct match?
830 
     (based on or32_opcodes this should be the only possibility,
831 
     but in case of invalid/missing instruction we must perform a check)  */
832 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
833 
    return i;
834 
  else
835 
    return -1;
836 133 markom 
}
837 371 markom 
 
838 
static char disassembled_str[50];
839 
char *disassembled = &disassembled_str[0];
840 
 
841 
/* Automagically does zero- or sign- extension and also finds correct
842 
   sign bit position if sign extension is correct extension. Which extension
843 
   is proper is figured out from letter description. */
844 
 
845 879 markom 
unsigned long
846 371 markom 
extend_imm(unsigned long imm, char l)
847 
{
848 
  unsigned long mask;
849 
  int letter_bits;
850 
 
851 
  /* First truncate all bits above valid range for this letter
852 
     in case it is zero extend. */
853 
  letter_bits = letter_range(l);
854 
  mask = (1 << letter_bits) - 1;
855 
  imm &= mask;
856 
 
857 
  /* Do sign extend if this is the right one. */
858 
  if (letter_signed(l) && (imm >> (letter_bits - 1)))
859 
    imm |= (~mask);
860 
 
861 
  return imm;
862 
}
863 
 
864 879 markom 
unsigned long
865 371 markom 
or32_extract(param_ch, enc_initial, insn)
866 
     char param_ch;
867 
     char *enc_initial;
868 
     unsigned long insn;
869 
{
870 
  char *enc;
871 
  unsigned long ret = 0;
872 
  int opc_pos = 0;
873 
  int param_pos = 0;
874 
 
875 
  for (enc = enc_initial; *enc != '\0'; enc++)
876 
    if (*enc == param_ch)
877 
      {
878 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
879 
          continue;
880 
        else
881 
          param_pos++;
882 
      }
883 
 
884 
#if DEBUG
885 
  printf("or32_extract: %x ", param_pos);
886 
#endif
887 
  opc_pos = 32;
888 
  for (enc = enc_initial; *enc != '\0'; )
889 
    if ((*enc == '0') && (*(enc+1) == 'x'))
890 
      {
891 
        opc_pos -= 4;
892 
        if ((param_ch == '0') || (param_ch == '1'))
893 
          {
894 
            unsigned long tmp = strtol(enc, NULL, 16);
895 
#if DEBUG
896 
            printf(" enc=%s, tmp=%x ", enc, tmp);
897 
#endif
898 
            if (param_ch == '0')
899 
              tmp = 15 - tmp;
900 
            ret |= tmp << opc_pos;
901 
          }
902 
        enc += 3;
903 
      }
904 
    else if ((*enc == '0') || (*enc == '1'))
905 
      {
906 
        opc_pos--;
907 
        if (param_ch == *enc)
908 
          ret |= 1 << opc_pos;
909 
        enc++;
910 
      }
911 
    else if (*enc == param_ch)
912 
      {
913 
        opc_pos--;
914 
        param_pos--;
915 
#if DEBUG
916 
        printf("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
917 
#endif
918 
        if (islower(param_ch))
919 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
920 
        else
921 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
922 
        enc++;
923 
      }
924 
    else if (isalpha(*enc))
925 
      {
926 
        opc_pos--;
927 
        enc++;
928 
      }
929 
    else if (*enc == '-')
930 
      {
931 
        opc_pos--;
932 
        enc++;
933 
      }
934 
    else
935 
      enc++;
936 
 
937 
#if DEBUG
938 
  printf ("ret=%x\n", ret);
939 
#endif
940 
  return ret;
941 
}
942 
 
943 
/* Print register. Used only by print_insn. */
944 
 
945 703 markom 
static char *
946 
or32_print_register (dest, param_ch, encoding, insn)
947 
     char *dest;
948 371 markom 
     char param_ch;
949 
     char *encoding;
950 
     unsigned long insn;
951 
{
952 
  int regnum = or32_extract(param_ch, encoding, insn);
953 
 
954 703 markom 
  sprintf (dest, "r%d", regnum);
955 
  while (*dest) dest++;
956 
  return dest;
957 371 markom 
}
958 
 
959 
/* Print immediate. Used only by print_insn. */
960 
 
961 703 markom 
static char *
962 
or32_print_immediate (dest, param_ch, encoding, insn)
963 
     char *dest;
964 371 markom 
     char param_ch;
965 
     char *encoding;
966 
     unsigned long insn;
967 
{
968 
  int imm = or32_extract (param_ch, encoding, insn);
969 
 
970 
  imm = extend_imm(imm, param_ch);
971 
 
972 
  if (letter_signed(param_ch))
973 
    {
974 
      if (imm < 0)
975 703 markom 
        sprintf (dest, "%d", imm);
976 371 markom 
      else
977 703 markom 
        sprintf (dest, "0x%x", imm);
978 371 markom 
    }
979 
  else
980 703 markom 
    sprintf (dest, "%#x", imm);
981 
  while (*dest) dest++;
982 
  return dest;
983 371 markom 
}
984 
 
985 
/* Disassemble one instruction from insn to disassemble.
986 
   Return the size of the instruction.  */
987 
 
988 
int
989 
disassemble_insn (insn)
990 
     unsigned long insn;
991 
{
992 703 markom 
  return disassemble_index (insn, insn_decode (insn));
993 
}
994 371 markom 
 
995 703 markom 
/* Disassemble one instruction from insn index.
996 
   Return the size of the instruction.  */
997 
 
998 
int
999 
disassemble_index (insn, index)
1000 
     unsigned long insn;
1001 
     int index;
1002 
{
1003 
  char *dest = disassembled;
1004 371 markom 
  if (index >= 0)
1005 
    {
1006 
      struct or32_opcode const *opcode = &or32_opcodes[index];
1007 
      char *s;
1008 
 
1009 703 markom 
      strcpy (dest, opcode->name);
1010 
      while (*dest) dest++;
1011 
      *dest++ = ' ';
1012 
      *dest = 0;
1013 
 
1014 371 markom 
      for (s = opcode->args; *s != '\0'; ++s)
1015 
        {
1016 
          switch (*s)
1017 
            {
1018 
            case '\0':
1019 703 markom 
              return insn_len (insn);
1020 714 markom 
 
1021 371 markom 
            case 'r':
1022 703 markom 
              dest = or32_print_register(dest, *++s, opcode->encoding, insn);
1023 371 markom 
              break;
1024 714 markom 
 
1025 371 markom 
            default:
1026 
              if (strchr (opcode->encoding, *s))
1027 703 markom 
                dest = or32_print_immediate (dest, *s, opcode->encoding, insn);
1028 
              else {
1029 
                *dest++ = *s;
1030 
                *dest = 0;
1031 
              }
1032 371 markom 
            }
1033 
        }
1034 
    }
1035 
  else
1036 
    {
1037 
      /* This used to be %8x for binutils.  */
1038 1308 phoenix 
      sprintf(dest, ".word 0x%08lx", insn);
1039 703 markom 
      while (*dest) dest++;
1040 371 markom 
    }
1041 
  return insn_len (insn);
1042 
}

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