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[/] [or1k/] [branches/] [stable_0_1_x/] [insight/] [opcodes/] [or32.c] - Blame information for rev 1295

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

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