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[/] [or1k/] [tags/] [nog_patch_57/] [insight/] [opcodes/] [or32.c] - Blame information for rev 138

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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 
This file is part of gen_or1k_isa, or1k, GDB and GAS.
6 
 
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 
/* We treat all letters the same in encode/decode routines so
22 
   we need to assign some characteristics to them like signess etc.*/
23 
#include <string.h>
24 
#include <stdio.h>
25 
#include <stdlib.h>
26 
 
27 138 markom 
#ifdef HAVE_CONFIG_H
28 
# include "config.h"
29 
#endif
30 
#include "parse.h"
31 133 markom 
#include "opcode/or32.h"
32 
 
33 
/* **INDENT-OFF** */
34 
 
35 
CONST struct or32_letter or32_letters[] =
36 
{
37 
{ 'A', NUM_UNSIGNED },
38 
{ 'B', NUM_UNSIGNED },
39 
{ 'D', NUM_UNSIGNED },
40 
{ 'I', NUM_SIGNED },
41 
{ 'K', NUM_UNSIGNED },
42 
{ 'L', NUM_UNSIGNED },
43 
{ 'N', NUM_SIGNED },
44 
{ '0', NUM_UNSIGNED },
45 
{ '\0', 0 }     /* dummy entry */
46 
};
47 
 
48 
/* Opcode encoding:
49 
   machine[31:30]: first two bits of opcode
50 
                   00 - neither of source operands is GPR
51 
                   01 - second source operand is GPR (rB)
52 
                   10 - first source operand is GPR (rA)
53 
                   11 - both source operands are GPRs (rA and rB)
54 
   machine[29:26]: next four bits of opcode
55 
   machine[25:00]: instruction operands (specific to individual instruction)
56 
 
57 
  Recommendation: irrelevant instruction bits should be set with a value of
58 
  bits in same positions of instruction preceding current instruction in the
59 
  code (when assembling).
60 
*/
61 
 
62 
#define EFN &l_none
63 
 
64 
#ifdef HAS_EXECUTION
65 
#define EF(func) &(func)
66 
#define EFI &l_invalid
67 
#else  /* HAS_EXECUTION */
68 
#define EF(func) EFN
69 
#define EFI EFN
70 
#endif /* HAS_EXECUTION */
71 
 
72 
CONST struct or32_opcode or32_opcodes[] =
73 
{
74 
 
75 
{ "l.j",       "N",            "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY },
76 
{ "l.jal",     "N",            "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY },
77 138 markom 
{ "l.bnf",     "N",            "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG},
78 
{ "l.bf",      "N",            "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG },
79 133 markom 
{ "l.nop",     "",             "00 0x5  01--- ----- ---- ---- ---- ----", EF(l_nop), 0 },
80 
{ "l.movhi",   "rD,K",         "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/
81 
{ "l.macrc",   "rD",           "00 0x6  DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/
82 
{ "l.mfspr",   "rD,rA,K",      "00 0x7  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 },
83 
{ "l.sys",     "K",            "00 0x8  00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 },
84 
{ "l.trap",    "K",            "00 0x8  01000 00000 KKKK KKKK KKKK KKKK", EFI, 0 },
85 
{ "l.msync",   "",             "00 0x8  10000 00000 0000 0000 0000 0000", EFN, 0 },
86 
{ "l.psync",   "",             "00 0x8  10100 00000 0000 0000 0000 0000", EFN, 0 },
87 
{ "l.csync",   "",             "00 0x8  11000 00000 0000 0000 0000 0000", EFN, 0 },
88 
{ "l.rfe",     "",             "00 0x9  ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY },
89 
 
90 
{ "lv.all_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
91 
{ "lv.all_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
92 
{ "lv.all_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
93 
{ "lv.all_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
94 
{ "lv.all_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
95 
{ "lv.all_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
96 
{ "lv.all_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
97 
{ "lv.all_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
98 
{ "lv.all_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
99 
{ "lv.all_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
100 
{ "lv.all_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
101 
{ "lv.all_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
102 
{ "lv.any_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 },
103 
{ "lv.any_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 },
104 
{ "lv.any_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 },
105 
{ "lv.any_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 },
106 
{ "lv.any_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 },
107 
{ "lv.any_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 },
108 
{ "lv.any_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 },
109 
{ "lv.any_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 },
110 
{ "lv.any_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 },
111 
{ "lv.any_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 },
112 
{ "lv.any_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 },
113 
{ "lv.any_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 },
114 
{ "lv.add.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 },
115 
{ "lv.add.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 },
116 
{ "lv.adds.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 },
117 
{ "lv.adds.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 },
118 
{ "lv.addu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 },
119 
{ "lv.addu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 },
120 
{ "lv.addus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 },
121 
{ "lv.addus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 },
122 
{ "lv.and",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 },
123 
{ "lv.avg.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 },
124 
{ "lv.avg.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 },
125 
{ "lv.cmp_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 },
126 
{ "lv.cmp_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 },
127 
{ "lv.cmp_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 },
128 
{ "lv.cmp_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 },
129 
{ "lv.cmp_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 },
130 
{ "lv.cmp_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 },
131 
{ "lv.cmp_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 },
132 
{ "lv.cmp_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 },
133 
{ "lv.cmp_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 },
134 
{ "lv.cmp_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 },
135 
{ "lv.cmp_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 },
136 
{ "lv.cmp_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 },
137 
{ "lv.madds.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 },
138 
{ "lv.max.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 },
139 
{ "lv.max.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 },
140 
{ "lv.merge.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 },
141 
{ "lv.merge.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 },
142 
{ "lv.min.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 },
143 
{ "lv.min.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 },
144 
{ "lv.msubs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 },
145 
{ "lv.muls.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 },
146 
{ "lv.nand",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 },
147 
{ "lv.nor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 },
148 
{ "lv.or",     "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 },
149 
{ "lv.pack.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 },
150 
{ "lv.pack.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 },
151 
{ "lv.packs.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 },
152 
{ "lv.packs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 },
153 
{ "lv.packus.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 },
154 
{ "lv.packus.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 },
155 
{ "lv.perm.n", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 },
156 
{ "lv.rl.b",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 },
157 
{ "lv.rl.h",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 },
158 
{ "lv.sll.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 },
159 
{ "lv.sll.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 },
160 
{ "lv.sll",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 },
161 
{ "lv.srl.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 },
162 
{ "lv.srl.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 },
163 
{ "lv.sra.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 },
164 
{ "lv.sra.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 },
165 
{ "lv.srl",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 },
166 
{ "lv.sub.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 },
167 
{ "lv.sub.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 },
168 
{ "lv.subs.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 },
169 
{ "lv.subs.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 },
170 
{ "lv.subu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 },
171 
{ "lv.subu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 },
172 
{ "lv.subus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 },
173 
{ "lv.subus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 },
174 
{ "lv.unpack.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 },
175 
{ "lv.unpack.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 },
176 
{ "lv.xor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 },
177 
{ "lv.cust1",  "",             "00 0xA  ----- ----- ---- ---- 0xC ----", EFI, 0 },
178 
{ "lv.cust2",  "",             "00 0xA  ----- ----- ---- ---- 0xD ----", EFI, 0 },
179 
{ "lv.cust3",  "",             "00 0xA  ----- ----- ---- ---- 0xE ----", EFI, 0 },
180 
{ "lv.cust4",  "",             "00 0xA  ----- ----- ---- ---- 0xF ----", EFI, 0 },
181 
 
182 
{ "lf.add.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
183 
{ "lf.sub.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
184 
{ "lf.mul.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
185 
{ "lf.div.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
186 
{ "lf.itof.s",  "rD,rA",       "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
187 
{ "lf.ftoi.s",  "rD,rA",       "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
188 
{ "lf.rem.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
189 
{ "lf.madd.s",  "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
190 
{ "lf.sfeq.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
191 
{ "lf.sfne.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
192 
{ "lf.sfgt.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
193 
{ "lf.sfge.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
194 
{ "lf.sflt.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
195 
{ "lf.sfle.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
196 
{ "lf.cust1.s", "",            "00 0xB  ----- ----- ---- ---- 0xE ----", EFI, 0 },
197 
 
198 
{ "lf.add.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
199 
{ "lf.sub.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
200 
{ "lf.mul.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
201 
{ "lf.div.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
202 
{ "lf.itof.d",  "rD,rA",       "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
203 
{ "lf.ftoi.d",  "rD,rA",       "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
204 
{ "lf.rem.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
205 
{ "lf.madd.d",  "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
206 
{ "lf.sfeq.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
207 
{ "lf.sfne.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
208 
{ "lf.sfgt.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
209 
{ "lf.sfge.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
210 
{ "lf.sflt.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
211 
{ "lf.sfle.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
212 
{ "lf.cust1.d", "",            "00 0xC  ----- ----- ---- ---- 0xE ----", EFI, 0 },
213 
 
214 
{ "lvf.ld",     "rD,0(rA)",    "00 0xD  DDDDD AAAAA ---- ---- 0x0 0x0", EFI, 0 },
215 
{ "lvf.lw",     "rD,0(rA)",    "00 0xD  DDDDD AAAAA ---- ---- 0x0 0x1", EFI, 0 },
216 
{ "lvf.sd",     "0(rA),rB",    "00 0xD  ----- AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
217 
{ "lvf.sw",     "0(rA),rB",    "00 0xD  ----- AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
218 
 
219 
{ "l.mtspr",   "rA,rB,K",      "01 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
220 
{ "l.jr",      "rB",           "01 0x1  ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY },
221 
{ "l.jalr",    "rB",           "01 0x2  ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY },
222 
{ "l.cust1",   "",             "01 0xC  ----- ----- ---- ---- ---- ----", EFI, 0 },
223 
{ "l.cust2",   "",             "01 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
224 
{ "l.cust3",   "",             "01 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
225 
{ "l.cust4",   "",             "01 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
226 
 
227 
{ "l.ld",      "rD,I(rA)",     "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
228 
{ "l.lwz",     "rD,I(rA)",     "10 0x1  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 },
229 
{ "l.lws",     "rD,I(rA)",     "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
230 
{ "l.lbz",     "rD,I(rA)",     "10 0x3  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 },
231 
{ "l.lbs",     "rD,I(rA)",     "10 0x4  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 },
232 
{ "l.lhz",     "rD,I(rA)",     "10 0x5  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 },
233 
{ "l.lhs",     "rD,I(rA)",     "10 0x6  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 },
234 
 
235 
{ "l.addi",    "rD,rA,I",      "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), 0 },
236 
{ "l.addic",   "rD,rA,I",      "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
237 
{ "l.andi",    "rD,rA,K",      "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), 0 },
238 
{ "l.ori",     "rD,rA,K",      "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0  },
239 
{ "l.xori",    "rD,rA,I",      "10 0xB  DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 },
240 
{ "l.muli",    "rD,rA,I",      "10 0xC  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
241 
{ "l.maci",    "rA,I",         "10 0xD  ----- AAAAA IIII IIII IIII IIII", EF(l_mac), 0 },
242 
{ "l.slli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 },
243 
{ "l.srli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 },
244 
{ "l.srai",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 },
245 
{ "l.rori",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 },
246 
 
247 138 markom 
{ "l.sfeqi",   "rA,I",         "10 0xF  00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG },
248 
{ "l.sfnei",   "rA,I",         "10 0xF  00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG },
249 
{ "l.sfgtui",  "rA,I",         "10 0xF  00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG },
250 
{ "l.sfgeui",  "rA,I",         "10 0xF  00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG },
251 
{ "l.sfltui",  "rA,I",         "10 0xF  00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG },
252 
{ "l.sfleui",  "rA,I",         "10 0xF  00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG },
253 
{ "l.sfgtsi",  "rA,I",         "10 0xF  01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG },
254 
{ "l.sfgesi",  "rA,I",         "10 0xF  01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG },
255 
{ "l.sfltsi",  "rA,I",         "10 0xF  01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG },
256 
{ "l.sflesi",  "rA,I",         "10 0xF  01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG },
257 133 markom 
 
258 
{ "l.sd",      "I(rA),rB",     "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 },
259 
{ "l.sw",      "I(rA),rB",     "11 0x5  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 },
260 
{ "l.sb",      "I(rA),rB",     "11 0x6  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 },
261 
{ "l.sh",      "I(rA),rB",     "11 0x7  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
262 
 
263 
{ "l.add",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), 0 },
264 
{ "l.addc",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1", EFI, 0 },
265 
{ "l.sub",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 },
266 
{ "l.and",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), 0 },
267 
{ "l.or",      "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 },
268 
{ "l.xor",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 },
269 
{ "l.mul",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 },
270 
{ "l.mac",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 0--- 0x7", EF(l_mac), 0 }, /*MM*/
271 
{ "l.msb",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 1--- 0x7", EF(l_msb), 0 }, /*MM*/
272 
{ "l.sll",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 },
273 
{ "l.srl",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 },
274 
{ "l.sra",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 },
275 
{ "l.ror",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 },
276 
{ "l.div",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x9", EF(l_div), 0 },
277 
{ "l.divu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xA", EF(l_divu), 0 },
278 
{ "l.mulu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 },
279 138 markom 
{ "l.exths",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0xC", EFI, 0 },
280 
{ "l.extbs",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0xC", EFI, 0 },
281 
{ "l.exthz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0xC", EFI, 0 },
282 
{ "l.extbz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0xC", EFI, 0 },
283 
{ "l.extws",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0xD", EFI, 0 },
284 
{ "l.extwz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0xD", EFI, 0 },
285 133 markom 
{ "l.cmov",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE", EFI, 0 },
286 
{ "l.ff1",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 },
287 
 
288 138 markom 
{ "l.sfeq",    "rA,rB",        "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG },
289 
{ "l.sfne",    "rA,rB",        "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG },
290 
{ "l.sfgtu",   "rA,rB",        "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG },
291 
{ "l.sfgeu",   "rA,rB",        "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG },
292 
{ "l.sfltu",   "rA,rB",        "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG },
293 
{ "l.sfleu",   "rA,rB",        "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG },
294 
{ "l.sfgts",   "rA,rB",        "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG },
295 
{ "l.sfges",   "rA,rB",        "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG },
296 
{ "l.sflts",   "rA,rB",        "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG },
297 
{ "l.sfles",   "rA,rB",        "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
298 133 markom 
 
299 
{ "l.cust5",   "",             "11 0xC  ----- ----- ---- ---- ---- ----", EFI, 0 },
300 
{ "l.cust6",   "",             "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
301 
{ "l.cust7",   "",             "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
302 
{ "l.cust8",   "",             "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
303 
 
304 
{ "", "", "", EFI, 0 }           /* Dummy entry, not included in num_opcodes.  This
305 
                           lets code examine entry i+1 without checking
306 
                           if we've run off the end of the table.  */
307 
};
308 
 
309 
#undef EFI
310 
#undef EFN
311 
#undef EF
312 
 
313 
/* **INDENT-ON** */
314 
 
315 
CONST unsigned int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
316 
 
317 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
318 
int
319 
insn_len(int insn_index)
320 133 markom 
{
321 
  insn_index = 0; /* Just to get rid that warning.  */
322 
  return 4;
323 
}
324 
 
325 
/* Is individual insn's operand signed or unsigned? */
326 138 markom 
int
327 
letter_signed(char l)
328 133 markom 
{
329 
  CONST struct or32_letter *pletter;
330 
 
331 
  for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
332 
    if (pletter->letter == l)
333 
      return pletter->sign;
334 
 
335 
  printf("letter_signed(%c): Unknown letter.\n", l);
336 
  return 0;
337 
}
338 
 
339 
/* Number of letters in the individual lettered operand. */
340 138 markom 
int
341 
letter_range(char l)
342 133 markom 
{
343 
  CONST struct or32_opcode *pinsn;
344 
  char *enc;
345 
  int range = 0;
346 
 
347 138 markom 
  for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
348 
    {
349 
      if (strchr(pinsn->encoding,l))
350 
        {
351 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
352 
            if ((*enc == '0') && (*(enc+1) == 'x'))
353 
              enc += 2;
354 
            else if (*enc == l)
355 
              range++;
356 
          return range;
357 133 markom 
        }
358 
    }
359 
  printf("\nABORT: letter_range(%c): Never used letter.\n", l);
360 
  exit(1);
361 
}
362 
 
363 
/* MM: Returns index of given instruction name.  */
364 138 markom 
int
365 
insn_index (char *insn)
366 
{
367 133 markom 
  int i, found = -1;
368 
  for (i = 0; (unsigned int)i < num_opcodes; i++)
369 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
370 
      {
371 
        found = i;
372 
        break;
373 
      }
374 133 markom 
  return found;
375 
}
376 
 
377 138 markom 
CONST char *insn_name(int index)
378 
{
379 133 markom 
  if (index >= 0 && (unsigned int)index < num_opcodes)
380 
    return or32_opcodes[index].name;
381 
  else
382 
    return "???";
383 
}
384 
 
385 138 markom 
void l_none()
386 
{
387 133 markom 
}
388 
 
389 
 
390 
/*** Finite automata for instruction decoding building code ***/
391 
 
392 
/* Find simbols in encoding.  */
393 
static unsigned long
394 
insn_extract(param_ch, enc_initial)
395 
     char param_ch;
396 
     char *enc_initial;
397 
{
398 
  char *enc;
399 
  unsigned long ret = 0;
400 
  unsigned opc_pos = 32;
401 
  for (enc = enc_initial; *enc != '\0'; )
402 
    if ((*enc == '0') && (*(enc+1) == 'x'))
403 
      {
404 
        unsigned long tmp = strtol(enc+2, NULL, 16);
405 
        opc_pos -= 4;
406 138 markom 
        if (param_ch == '0' || param_ch == '1')
407 
          {
408 
            if (param_ch == '0')
409 
              tmp = 15 - tmp;
410 
            ret |= tmp << opc_pos;
411 
          }
412 133 markom 
        enc += 3;
413 
      }
414 138 markom 
    else
415 
      {
416 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
417 
          {
418 
            opc_pos--;
419 
            if (param_ch == *enc)
420 
              ret |= 1 << opc_pos;
421 
          }
422 
        enc++;
423 133 markom 
      }
424 
  return ret;
425 
}
426 
 
427 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
428 
#define MAX_OP_TABLE_SIZE (1200)
429 133 markom 
#define LEAF_FLAG         (0x80000000)
430 
#define MAX_LEN           (8)
431 
 
432 
#ifndef MIN
433 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
434 
#endif
435 
 
436 
unsigned long *automata;
437 
int nuncovered;
438 
int curpass = 0;
439 
 
440 138 markom 
/* MM: Struct that hold runtime build information about instructions.  */
441 
struct temp_insn_struct
442 
{
443 
  unsigned long insn;
444 
  unsigned long insn_mask;
445 
  int in_pass;
446 
} *ti;
447 
 
448 
struct insn_op_struct *op_data, **op_start;
449 
 
450 
/* Recursive utility function used to find best match and to build automata.  */
451 
 
452 
static unsigned long *
453 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
454 
{
455 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
456 
  unsigned long cur_mask = mask;
457 
  unsigned long *next;
458 
 
459 
  for (i = 0; i < num_opcodes; i++)
460 138 markom 
    if (ti[i].in_pass == pass)
461 
      {
462 
        cur_mask &= ti[i].insn_mask;
463 
        ninstr++;
464 
        last_match = i;
465 
      }
466 
 
467 
  debug("%08X %08X\n", mask, cur_mask);
468 
  if (ninstr == 0)
469 
    return 0;
470 
  if (ninstr == 1)
471 
    {
472 
      /* Leaf holds instruction index. */
473 
      debug("%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
474 
      *cur = LEAF_FLAG | last_match;
475 
      cur++;
476 
      nuncovered--;
477 
    } else {
478 
      /* Find longest match.  */
479 
      for (i = 0; i < 32; i++)
480 
        {
481 
          int len;
482 
          for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
483 
            {
484 
              unsigned long m = (1UL << ((unsigned long)len)) - 1;
485 
              /*debug(" (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);*/
486 
              if ((m & (cur_mask >> (unsigned)i)) == m)
487 
                {
488 
                  best_len = len;
489 
                  best_first = i;
490 
                  /*debug("!");*/
491 
                }
492 
              else
493 
                break;
494 
            }
495 
        }
496 
      /*debug("\n");*/
497 
      if (!best_len)
498 
        {
499 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
500 
          for (i = 0; i < num_opcodes; i++)
501 
            if (ti[i].in_pass == pass)
502 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
503 
 
504 
          fprintf (stderr, "\n");
505 
          exit (1);
506 
        }
507 
      debug("%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
508 
      *cur = best_first;
509 
      cur++;
510 
      *cur = (1 << best_len) - 1;
511 
      cur++;
512 
      next = cur;
513 
      /* Allocate space for pointers.  */
514 
      cur += 1 << best_len;
515 
      cur_mask = (1 << (unsigned long)best_len) - 1;
516 
 
517 
      for (i = 0; i < (1 << (unsigned long)best_len); i++)
518 
        {
519 
          int j;
520 
          unsigned long *c;
521 
          curpass++;
522 
          for (j = 0; j < num_opcodes; j++)
523 
            if (ti[j].in_pass == pass
524 
                && ((ti[j].insn >> best_first) & cur_mask) == i
525 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
526 
              ti[j].in_pass = curpass;
527 
 
528 
          /*debug("%08X %08X %i\n", mask, cur_mask, best_first);*/
529 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
530 
          if (c)
531 
            {
532 
              debug("%i> #%X -> %u\n", next - automata, i, cur - automata);
533 
              *next = cur - automata;
534 
              cur = c;
535 
            }
536 
          else
537 
            {
538 
              debug("%i> N/A\n", next - automata);
539 
              *next = 0;
540 
            }
541 
          next++;
542 
        }
543 133 markom 
    }
544 138 markom 
  return cur;
545 
}
546 133 markom 
 
547 138 markom 
/* Returns number of nonzero bits. */
548 
static int
549 
num_ones (unsigned long value)
550 
{
551 
  int c = 0;
552 
  while (value)
553 
    {
554 
      if (value & 1)
555 
        c++;
556 
      value >>= 1;
557 133 markom 
    }
558 138 markom 
  return c;
559 
}
560 133 markom 
 
561 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
562 
   Parameters are stored in ti struct.  */
563 
 
564 
static struct insn_op_struct *
565 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
566 
{
567 
  char *args = opcode->args;
568 
  int i, type;
569 
 
570 
  i = 0;
571 
  type = 0;
572 
  while (*args != '\0')
573 
    {
574 
      if (*args == 'r')
575 
        {
576 
          args++;
577 
          type |= OPTYPE_REG;
578 133 markom 
        }
579 138 markom 
      else if (isalpha (*args))
580 
        {
581 
          unsigned long arg;
582 
          arg = insn_extract(*args, opcode->encoding);
583 
          debug("%s : %08X ------\n", opcode->name, arg);
584 
          if (letter_signed (*args))
585 
            {
586 
              type |= OPTYPE_SIG;
587 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
588 
            }
589 
 
590 
          /* Split argument to sequences of consecutive ones.  */
591 
          while (arg)
592 
            {
593 
              int shr = 0;
594 
              unsigned long tmp = arg, mask = 0;
595 
              while ((tmp & 1) == 0)
596 
                {
597 
                  shr++;
598 
                  tmp >>= 1;
599 
                }
600 
              while (tmp & 1)
601 
                {
602 
                  mask++;
603 
                  tmp >>= 1;
604 
                }
605 
              cur->type = type | shr;
606 
              cur->data = mask;
607 
              arg &= ~(((1 << mask) - 1) << shr);
608 
              debug("|%08X %08X\n", cur->type, cur->data);
609 
              cur++;
610 
            }
611 
          args++;
612 
        }
613 
      else if (*args == '(')
614 
        {
615 
          /* Next param is displacement.  Later we will treat them as one operand.  */
616 
          cur--;
617 
          cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP;
618 
          debug(">%08X %08X\n", cur->type, cur->data);
619 
          cur++;
620 
          type = 0;
621 
          i++;
622 
          args++;
623 
        }
624 
      else if (*args == OPERAND_DELIM)
625 
        {
626 
          cur--;
627 
          cur->type = type | cur->type | OPTYPE_OP;
628 
          debug(">%08X %08X\n", cur->type, cur->data);
629 
          cur++;
630 
          type = 0;
631 
          i++;
632 
          args++;
633 
        }
634 
      else if (*args == '0')
635 
        {
636 
          cur->type = type;
637 
          cur->data = 0;
638 
          debug(">%08X %08X\n", cur->type, cur->data);
639 
          cur++;
640 
          type = 0;
641 
          i++;
642 
          args++;
643 
        }
644 
      else if (*args == ')')
645 
        args++;
646 
      else
647 
        {
648 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
649 
          exit (1);
650 
        }
651 133 markom 
    }
652 138 markom 
  cur--;
653 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
654 
  debug("#%08X %08X\n", cur->type, cur->data);
655 
  cur++;
656 133 markom 
  return cur;
657 
}
658 
 
659 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
660 
 
661 
void
662 
build_automata()
663 
{
664 133 markom 
  int i, j;
665 
  unsigned long *end;
666 138 markom 
  struct insn_op_struct *cur;
667 
 
668 133 markom 
  automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
669 138 markom 
  ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
670 133 markom 
 
671 
  nuncovered = num_opcodes;
672 138 markom 
  printf("Building automata... ");
673 133 markom 
  /* Build temporary information about instructions.  */
674 138 markom 
  for (i = 0; i < num_opcodes; i++)
675 
    {
676 
      unsigned long ones, zeros;
677 
      char *encoding = or32_opcodes[i].encoding;
678 
      ones  = insn_extract('1', encoding);
679 
      zeros = insn_extract('0', encoding);
680 
      ti[i].insn_mask = ones | zeros;
681 
      ti[i].insn = ones;
682 
      ti[i].in_pass = curpass = 0;
683 
      /*debug("%s: %s %08X %08X\n", or32_opcodes[i].name,
684 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
685 
    }
686 133 markom 
 
687 
  /* Until all are covered search for best criteria to separate them.  */
688 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
689 
  if (end - automata > MAX_AUTOMATA_SIZE)
690 
    {
691 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
692 
      exit (1);
693 
    }
694 
  printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
695 
 
696 
  printf("Parsing operands data... ");
697 
  op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
698 
  op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
699 
  cur = op_data;
700 
  for (i = 0; i < num_opcodes; i++)
701 
    {
702 
      op_start[i] = cur;
703 
      cur = parse_params (&or32_opcodes[i], cur);
704 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
705 
        {
706 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
707 
          exit (1);
708 
        }
709 
    }
710 
  printf("done.\n");
711 133 markom 
}
712 
 
713 138 markom 
void destruct_automata ()
714 
{
715 
  free (ti);
716 133 markom 
  free (automata);
717 138 markom 
  free (op_data);
718 
  free (op_start);
719 133 markom 
}
720 
 
721 
/* Decodes instruction and returns instruction index.  */
722 138 markom 
int insn_decode (unsigned int insn)
723 
{
724 133 markom 
  unsigned long *a = automata;
725 138 markom 
  int i;
726 
  while (!(*a & LEAF_FLAG))
727 
    {
728 
      unsigned int first = *a;
729 
      debug("%i ", a - automata);
730 
      a++;
731 
      i = (insn >> first) & *a;
732 
      a++;
733 
      if (!*(a + i))
734 
        { /* Invalid instruction found?  */
735 
          debug("XXX\n", i);
736 
          return -1;
737 
        }
738 
      a = automata + *(a + i);
739 
    }
740 
  i = *a & ~LEAF_FLAG;
741 
  debug("%i\n", i);
742 
  /* Final check - do we have direct match?
743 
     (based on or32_opcodes this should be the only possibility,
744 
     but in case of invalid/missing instruction we must perform a check)  */
745 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
746 
    return i;
747 
  else
748 
    return -1;
749 133 markom 
}

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