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[/] [or1k/] [tags/] [nog_patch_33/] [insight/] [opcodes/] [or32.c] - Blame information for rev 355

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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
30 133 markom 
#include "opcode/or32.h"
31 
 
32 
/* **INDENT-OFF** */
33 
 
34 
CONST struct or32_letter or32_letters[] =
35 
{
36 
{ 'A', NUM_UNSIGNED },
37 
{ 'B', NUM_UNSIGNED },
38 
{ 'D', NUM_UNSIGNED },
39 
{ 'I', NUM_SIGNED },
40 
{ 'K', NUM_UNSIGNED },
41 
{ 'L', NUM_UNSIGNED },
42 
{ 'N', NUM_SIGNED },
43 
{ '0', NUM_UNSIGNED },
44 
{ '\0', 0 }     /* dummy entry */
45 
};
46 
 
47 
/* Opcode encoding:
48 
   machine[31:30]: first two bits of opcode
49 
                   00 - neither of source operands is GPR
50 
                   01 - second source operand is GPR (rB)
51 
                   10 - first source operand is GPR (rA)
52 
                   11 - both source operands are GPRs (rA and rB)
53 
   machine[29:26]: next four bits of opcode
54 
   machine[25:00]: instruction operands (specific to individual instruction)
55 
 
56 
  Recommendation: irrelevant instruction bits should be set with a value of
57 
  bits in same positions of instruction preceding current instruction in the
58 
  code (when assembling).
59 
*/
60 
 
61 
#define EFN &l_none
62 
 
63 
#ifdef HAS_EXECUTION
64 
#define EF(func) &(func)
65 
#define EFI &l_invalid
66 
#else  /* HAS_EXECUTION */
67 
#define EF(func) EFN
68 
#define EFI EFN
69 
#endif /* HAS_EXECUTION */
70 
 
71 
CONST struct or32_opcode or32_opcodes[] =
72 
{
73 
 
74 
{ "l.j",       "N",            "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY },
75 
{ "l.jal",     "N",            "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY },
76 138 markom 
{ "l.bnf",     "N",            "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG},
77 
{ "l.bf",      "N",            "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG },
78 133 markom 
{ "l.nop",     "",             "00 0x5  01--- ----- ---- ---- ---- ----", EF(l_nop), 0 },
79 
{ "l.movhi",   "rD,K",         "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/
80 
{ "l.macrc",   "rD",           "00 0x6  DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/
81 
{ "l.mfspr",   "rD,rA,K",      "00 0x7  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 },
82 
{ "l.sys",     "K",            "00 0x8  00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 },
83 144 chris 
{ "l.trap",    "K",            "00 0x8  01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0 }, /* CZ 21/06/01 */
84 133 markom 
{ "l.msync",   "",             "00 0x8  10000 00000 0000 0000 0000 0000", EFN, 0 },
85 
{ "l.psync",   "",             "00 0x8  10100 00000 0000 0000 0000 0000", EFN, 0 },
86 
{ "l.csync",   "",             "00 0x8  11000 00000 0000 0000 0000 0000", EFN, 0 },
87 
{ "l.rfe",     "",             "00 0x9  ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY },
88 
 
89 
{ "lv.all_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
90 
{ "lv.all_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
91 
{ "lv.all_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
92 
{ "lv.all_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
93 
{ "lv.all_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
94 
{ "lv.all_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
95 
{ "lv.all_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
96 
{ "lv.all_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
97 
{ "lv.all_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
98 
{ "lv.all_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
99 
{ "lv.all_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
100 
{ "lv.all_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
101 
{ "lv.any_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 },
102 
{ "lv.any_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 },
103 
{ "lv.any_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 },
104 
{ "lv.any_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 },
105 
{ "lv.any_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 },
106 
{ "lv.any_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 },
107 
{ "lv.any_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 },
108 
{ "lv.any_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 },
109 
{ "lv.any_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 },
110 
{ "lv.any_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 },
111 
{ "lv.any_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 },
112 
{ "lv.any_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 },
113 
{ "lv.add.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 },
114 
{ "lv.add.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 },
115 
{ "lv.adds.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 },
116 
{ "lv.adds.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 },
117 
{ "lv.addu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 },
118 
{ "lv.addu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 },
119 
{ "lv.addus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 },
120 
{ "lv.addus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 },
121 
{ "lv.and",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 },
122 
{ "lv.avg.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 },
123 
{ "lv.avg.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 },
124 
{ "lv.cmp_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 },
125 
{ "lv.cmp_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 },
126 
{ "lv.cmp_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 },
127 
{ "lv.cmp_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 },
128 
{ "lv.cmp_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 },
129 
{ "lv.cmp_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 },
130 
{ "lv.cmp_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 },
131 
{ "lv.cmp_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 },
132 
{ "lv.cmp_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 },
133 
{ "lv.cmp_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 },
134 
{ "lv.cmp_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 },
135 
{ "lv.cmp_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 },
136 
{ "lv.madds.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 },
137 
{ "lv.max.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 },
138 
{ "lv.max.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 },
139 
{ "lv.merge.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 },
140 
{ "lv.merge.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 },
141 
{ "lv.min.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 },
142 
{ "lv.min.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 },
143 
{ "lv.msubs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 },
144 
{ "lv.muls.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 },
145 
{ "lv.nand",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 },
146 
{ "lv.nor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 },
147 
{ "lv.or",     "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 },
148 
{ "lv.pack.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 },
149 
{ "lv.pack.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 },
150 
{ "lv.packs.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 },
151 
{ "lv.packs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 },
152 
{ "lv.packus.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 },
153 
{ "lv.packus.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 },
154 
{ "lv.perm.n", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 },
155 
{ "lv.rl.b",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 },
156 
{ "lv.rl.h",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 },
157 
{ "lv.sll.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 },
158 
{ "lv.sll.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 },
159 
{ "lv.sll",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 },
160 
{ "lv.srl.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 },
161 
{ "lv.srl.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 },
162 
{ "lv.sra.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 },
163 
{ "lv.sra.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 },
164 
{ "lv.srl",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 },
165 
{ "lv.sub.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 },
166 
{ "lv.sub.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 },
167 
{ "lv.subs.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 },
168 
{ "lv.subs.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 },
169 
{ "lv.subu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 },
170 
{ "lv.subu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 },
171 
{ "lv.subus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 },
172 
{ "lv.subus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 },
173 
{ "lv.unpack.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 },
174 
{ "lv.unpack.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 },
175 
{ "lv.xor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 },
176 
{ "lv.cust1",  "",             "00 0xA  ----- ----- ---- ---- 0xC ----", EFI, 0 },
177 
{ "lv.cust2",  "",             "00 0xA  ----- ----- ---- ---- 0xD ----", EFI, 0 },
178 
{ "lv.cust3",  "",             "00 0xA  ----- ----- ---- ---- 0xE ----", EFI, 0 },
179 
{ "lv.cust4",  "",             "00 0xA  ----- ----- ---- ---- 0xF ----", EFI, 0 },
180 
 
181 
{ "lf.add.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
182 
{ "lf.sub.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
183 
{ "lf.mul.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
184 
{ "lf.div.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
185 
{ "lf.itof.s",  "rD,rA",       "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
186 
{ "lf.ftoi.s",  "rD,rA",       "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
187 
{ "lf.rem.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
188 
{ "lf.madd.s",  "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
189 
{ "lf.sfeq.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
190 
{ "lf.sfne.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
191 
{ "lf.sfgt.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
192 
{ "lf.sfge.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
193 
{ "lf.sflt.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
194 
{ "lf.sfle.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
195 
{ "lf.cust1.s", "",            "00 0xB  ----- ----- ---- ---- 0xE ----", EFI, 0 },
196 
 
197 
{ "lf.add.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
198 
{ "lf.sub.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
199 
{ "lf.mul.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
200 
{ "lf.div.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
201 
{ "lf.itof.d",  "rD,rA",       "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
202 
{ "lf.ftoi.d",  "rD,rA",       "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
203 
{ "lf.rem.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
204 
{ "lf.madd.d",  "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
205 
{ "lf.sfeq.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
206 
{ "lf.sfne.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
207 
{ "lf.sfgt.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
208 
{ "lf.sfge.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
209 
{ "lf.sflt.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
210 
{ "lf.sfle.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
211 
{ "lf.cust1.d", "",            "00 0xC  ----- ----- ---- ---- 0xE ----", EFI, 0 },
212 
 
213 
{ "lvf.ld",     "rD,0(rA)",    "00 0xD  DDDDD AAAAA ---- ---- 0x0 0x0", EFI, 0 },
214 
{ "lvf.lw",     "rD,0(rA)",    "00 0xD  DDDDD AAAAA ---- ---- 0x0 0x1", EFI, 0 },
215 
{ "lvf.sd",     "0(rA),rB",    "00 0xD  ----- AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
216 
{ "lvf.sw",     "0(rA),rB",    "00 0xD  ----- AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
217 
 
218 
{ "l.mtspr",   "rA,rB,K",      "01 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
219 
{ "l.jr",      "rB",           "01 0x1  ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY },
220 
{ "l.jalr",    "rB",           "01 0x2  ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY },
221 174 markom 
{ "l.cust1",   "",             "01 0xC  ----- ----- ---- ---- ---- ----", EF(l_cust1), 0 },
222 
{ "l.cust2",   "",             "01 0xD  ----- ----- ---- ---- ---- ----", EF(l_cust2), 0 },
223 
{ "l.cust3",   "",             "01 0xE  ----- ----- ---- ---- ---- ----", EF(l_cust3), 0 },
224 
{ "l.cust4",   "",             "01 0xF  ----- ----- ---- ---- ---- ----", EF(l_cust4), 0 },
225 133 markom 
 
226 
{ "l.ld",      "rD,I(rA)",     "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
227 
{ "l.lwz",     "rD,I(rA)",     "10 0x1  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 },
228 
{ "l.lws",     "rD,I(rA)",     "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
229 
{ "l.lbz",     "rD,I(rA)",     "10 0x3  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 },
230 
{ "l.lbs",     "rD,I(rA)",     "10 0x4  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 },
231 
{ "l.lhz",     "rD,I(rA)",     "10 0x5  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 },
232 
{ "l.lhs",     "rD,I(rA)",     "10 0x6  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 },
233 
 
234 
{ "l.addi",    "rD,rA,I",      "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), 0 },
235 
{ "l.addic",   "rD,rA,I",      "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
236 
{ "l.andi",    "rD,rA,K",      "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), 0 },
237 
{ "l.ori",     "rD,rA,K",      "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0  },
238 
{ "l.xori",    "rD,rA,I",      "10 0xB  DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 },
239 
{ "l.muli",    "rD,rA,I",      "10 0xC  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
240 
{ "l.maci",    "rA,I",         "10 0xD  ----- AAAAA IIII IIII IIII IIII", EF(l_mac), 0 },
241 
{ "l.slli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 },
242 
{ "l.srli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 },
243 
{ "l.srai",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 },
244 
{ "l.rori",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 },
245 
 
246 138 markom 
{ "l.sfeqi",   "rA,I",         "10 0xF  00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG },
247 
{ "l.sfnei",   "rA,I",         "10 0xF  00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG },
248 
{ "l.sfgtui",  "rA,I",         "10 0xF  00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG },
249 
{ "l.sfgeui",  "rA,I",         "10 0xF  00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG },
250 
{ "l.sfltui",  "rA,I",         "10 0xF  00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG },
251 
{ "l.sfleui",  "rA,I",         "10 0xF  00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG },
252 
{ "l.sfgtsi",  "rA,I",         "10 0xF  01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG },
253 
{ "l.sfgesi",  "rA,I",         "10 0xF  01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG },
254 
{ "l.sfltsi",  "rA,I",         "10 0xF  01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG },
255 
{ "l.sflesi",  "rA,I",         "10 0xF  01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG },
256 133 markom 
 
257 
{ "l.sd",      "I(rA),rB",     "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 },
258 
{ "l.sw",      "I(rA),rB",     "11 0x5  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 },
259 
{ "l.sb",      "I(rA),rB",     "11 0x6  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 },
260 
{ "l.sh",      "I(rA),rB",     "11 0x7  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
261 
 
262 
{ "l.add",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), 0 },
263 
{ "l.addc",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1", EFI, 0 },
264 
{ "l.sub",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 },
265 
{ "l.and",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), 0 },
266 
{ "l.or",      "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 },
267 
{ "l.xor",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 },
268 
{ "l.mul",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 },
269 221 markom 
{ "l.mac",     "rA,rB",        "11 0x8  ----- AAAAA BBBB B-00 0--- 0x7", EF(l_mac), 0 }, /*MM*/
270 
{ "l.msb",     "rA,rB",        "11 0x8  ----- AAAAA BBBB B-00 1--- 0x7", EF(l_msb), 0 }, /*MM*/
271 133 markom 
{ "l.sll",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 },
272 
{ "l.srl",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 },
273 
{ "l.sra",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 },
274 
{ "l.ror",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 },
275 
{ "l.div",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x9", EF(l_div), 0 },
276 
{ "l.divu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xA", EF(l_divu), 0 },
277 
{ "l.mulu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 },
278 138 markom 
{ "l.exths",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0xC", EFI, 0 },
279 
{ "l.extbs",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0xC", EFI, 0 },
280 
{ "l.exthz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0xC", EFI, 0 },
281 
{ "l.extbz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0xC", EFI, 0 },
282 
{ "l.extws",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0xD", EFI, 0 },
283 
{ "l.extwz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0xD", EFI, 0 },
284 133 markom 
{ "l.cmov",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE", EFI, 0 },
285 
{ "l.ff1",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 },
286 
 
287 138 markom 
{ "l.sfeq",    "rA,rB",        "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG },
288 
{ "l.sfne",    "rA,rB",        "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG },
289 
{ "l.sfgtu",   "rA,rB",        "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG },
290 
{ "l.sfgeu",   "rA,rB",        "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG },
291 
{ "l.sfltu",   "rA,rB",        "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG },
292 
{ "l.sfleu",   "rA,rB",        "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG },
293 
{ "l.sfgts",   "rA,rB",        "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG },
294 
{ "l.sfges",   "rA,rB",        "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG },
295 
{ "l.sflts",   "rA,rB",        "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG },
296 
{ "l.sfles",   "rA,rB",        "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
297 133 markom 
 
298 
{ "l.cust5",   "",             "11 0xC  ----- ----- ---- ---- ---- ----", EFI, 0 },
299 
{ "l.cust6",   "",             "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
300 
{ "l.cust7",   "",             "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
301 
{ "l.cust8",   "",             "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
302 
 
303 221 markom 
/* This section should not be defined in or1ksim, since it contains duplicates,
304 
   which would cause machine builder to complain.  */
305 
#ifndef HAS_EXECUTION
306 
{ "l.cust5_1",   "rD",         "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
307 
{ "l.cust5_2",   "rD,rA"   ,   "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
308 
{ "l.cust5_3",   "rD,rA,rB",   "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
309 
 
310 
{ "l.cust6_1",   "rD",         "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
311 
{ "l.cust6_2",   "rD,rA"   ,   "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
312 
{ "l.cust6_3",   "rD,rA,rB",   "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
313 
 
314 
{ "l.cust7_1",   "rD",         "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
315 
{ "l.cust7_2",   "rD,rA"   ,   "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
316 
{ "l.cust7_3",   "rD,rA,rB",   "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
317 
 
318 
{ "l.cust8_1",   "rD",         "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
319 
{ "l.cust8_2",   "rD,rA"   ,   "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
320 
{ "l.cust8_3",   "rD,rA,rB",   "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
321 
#endif
322 
 
323 133 markom 
{ "", "", "", EFI, 0 }           /* Dummy entry, not included in num_opcodes.  This
324 
                           lets code examine entry i+1 without checking
325 
                           if we've run off the end of the table.  */
326 
};
327 
 
328 
#undef EFI
329 
#undef EFN
330 
#undef EF
331 
 
332 
/* **INDENT-ON** */
333 
 
334 
CONST unsigned int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
335 
 
336 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
337 
int
338 
insn_len(int insn_index)
339 133 markom 
{
340 
  insn_index = 0; /* Just to get rid that warning.  */
341 
  return 4;
342 
}
343 
 
344 
/* Is individual insn's operand signed or unsigned? */
345 138 markom 
int
346 
letter_signed(char l)
347 133 markom 
{
348 
  CONST struct or32_letter *pletter;
349 
 
350 
  for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
351 
    if (pletter->letter == l)
352 
      return pletter->sign;
353 
 
354 
  printf("letter_signed(%c): Unknown letter.\n", l);
355 
  return 0;
356 
}
357 
 
358 
/* Number of letters in the individual lettered operand. */
359 138 markom 
int
360 
letter_range(char l)
361 133 markom 
{
362 
  CONST struct or32_opcode *pinsn;
363 
  char *enc;
364 
  int range = 0;
365 
 
366 138 markom 
  for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
367 
    {
368 
      if (strchr(pinsn->encoding,l))
369 
        {
370 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
371 
            if ((*enc == '0') && (*(enc+1) == 'x'))
372 
              enc += 2;
373 
            else if (*enc == l)
374 
              range++;
375 
          return range;
376 133 markom 
        }
377 
    }
378 
  printf("\nABORT: letter_range(%c): Never used letter.\n", l);
379 
  exit(1);
380 
}
381 
 
382 
/* MM: Returns index of given instruction name.  */
383 138 markom 
int
384 
insn_index (char *insn)
385 
{
386 133 markom 
  int i, found = -1;
387 
  for (i = 0; (unsigned int)i < num_opcodes; i++)
388 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
389 
      {
390 
        found = i;
391 
        break;
392 
      }
393 133 markom 
  return found;
394 
}
395 
 
396 138 markom 
CONST char *insn_name(int index)
397 
{
398 133 markom 
  if (index >= 0 && (unsigned int)index < num_opcodes)
399 
    return or32_opcodes[index].name;
400 
  else
401 
    return "???";
402 
}
403 
 
404 138 markom 
void l_none()
405 
{
406 133 markom 
}
407 
 
408 
 
409 
/*** Finite automata for instruction decoding building code ***/
410 
 
411 
/* Find simbols in encoding.  */
412 
static unsigned long
413 
insn_extract(param_ch, enc_initial)
414 
     char param_ch;
415 
     char *enc_initial;
416 
{
417 
  char *enc;
418 
  unsigned long ret = 0;
419 
  unsigned opc_pos = 32;
420 
  for (enc = enc_initial; *enc != '\0'; )
421 
    if ((*enc == '0') && (*(enc+1) == 'x'))
422 
      {
423 
        unsigned long tmp = strtol(enc+2, NULL, 16);
424 
        opc_pos -= 4;
425 138 markom 
        if (param_ch == '0' || param_ch == '1')
426 
          {
427 
            if (param_ch == '0')
428 
              tmp = 15 - tmp;
429 
            ret |= tmp << opc_pos;
430 
          }
431 133 markom 
        enc += 3;
432 
      }
433 138 markom 
    else
434 
      {
435 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
436 
          {
437 
            opc_pos--;
438 
            if (param_ch == *enc)
439 
              ret |= 1 << opc_pos;
440 
          }
441 
        enc++;
442 133 markom 
      }
443 
  return ret;
444 
}
445 
 
446 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
447 
#define MAX_OP_TABLE_SIZE (1200)
448 133 markom 
#define LEAF_FLAG         (0x80000000)
449 
#define MAX_LEN           (8)
450 
 
451 
#ifndef MIN
452 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
453 
#endif
454 
 
455 
unsigned long *automata;
456 
int nuncovered;
457 
int curpass = 0;
458 
 
459 138 markom 
/* MM: Struct that hold runtime build information about instructions.  */
460 
struct temp_insn_struct
461 
{
462 
  unsigned long insn;
463 
  unsigned long insn_mask;
464 
  int in_pass;
465 
} *ti;
466 
 
467 
struct insn_op_struct *op_data, **op_start;
468 
 
469 
/* Recursive utility function used to find best match and to build automata.  */
470 
 
471 
static unsigned long *
472 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
473 
{
474 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
475 
  unsigned long cur_mask = mask;
476 
  unsigned long *next;
477 
 
478 
  for (i = 0; i < num_opcodes; i++)
479 138 markom 
    if (ti[i].in_pass == pass)
480 
      {
481 
        cur_mask &= ti[i].insn_mask;
482 
        ninstr++;
483 
        last_match = i;
484 
      }
485 
 
486 344 markom 
  debug(8, "%08X %08X\n", mask, cur_mask);
487 138 markom 
  if (ninstr == 0)
488 
    return 0;
489 
  if (ninstr == 1)
490 
    {
491 
      /* Leaf holds instruction index. */
492 344 markom 
      debug(8, "%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
493 138 markom 
      *cur = LEAF_FLAG | last_match;
494 
      cur++;
495 
      nuncovered--;
496 
    } else {
497 
      /* Find longest match.  */
498 
      for (i = 0; i < 32; i++)
499 
        {
500 
          int len;
501 
          for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
502 
            {
503 
              unsigned long m = (1UL << ((unsigned long)len)) - 1;
504 344 markom 
              debug(9, " (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);
505 138 markom 
              if ((m & (cur_mask >> (unsigned)i)) == m)
506 
                {
507 
                  best_len = len;
508 
                  best_first = i;
509 344 markom 
                  debug(9, "!");
510 138 markom 
                }
511 
              else
512 
                break;
513 
            }
514 
        }
515 344 markom 
      debug(9, "\n");
516 138 markom 
      if (!best_len)
517 
        {
518 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
519 
          for (i = 0; i < num_opcodes; i++)
520 
            if (ti[i].in_pass == pass)
521 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
522 
 
523 
          fprintf (stderr, "\n");
524 
          exit (1);
525 
        }
526 344 markom 
      debug(8, "%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
527 138 markom 
      *cur = best_first;
528 
      cur++;
529 
      *cur = (1 << best_len) - 1;
530 
      cur++;
531 
      next = cur;
532 
      /* Allocate space for pointers.  */
533 
      cur += 1 << best_len;
534 
      cur_mask = (1 << (unsigned long)best_len) - 1;
535 
 
536 
      for (i = 0; i < (1 << (unsigned long)best_len); i++)
537 
        {
538 
          int j;
539 
          unsigned long *c;
540 
          curpass++;
541 
          for (j = 0; j < num_opcodes; j++)
542 
            if (ti[j].in_pass == pass
543 
                && ((ti[j].insn >> best_first) & cur_mask) == i
544 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
545 
              ti[j].in_pass = curpass;
546 
 
547 344 markom 
          debug(9, "%08X %08X %i\n", mask, cur_mask, best_first);
548 138 markom 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
549 
          if (c)
550 
            {
551 344 markom 
              debug(8, "%i> #%X -> %u\n", next - automata, i, cur - automata);
552 138 markom 
              *next = cur - automata;
553 
              cur = c;
554 
            }
555 
          else
556 
            {
557 344 markom 
              debug(8, "%i> N/A\n", next - automata);
558 138 markom 
              *next = 0;
559 
            }
560 
          next++;
561 
        }
562 133 markom 
    }
563 138 markom 
  return cur;
564 
}
565 133 markom 
 
566 138 markom 
/* Returns number of nonzero bits. */
567 
static int
568 
num_ones (unsigned long value)
569 
{
570 
  int c = 0;
571 
  while (value)
572 
    {
573 
      if (value & 1)
574 
        c++;
575 
      value >>= 1;
576 133 markom 
    }
577 138 markom 
  return c;
578 
}
579 133 markom 
 
580 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
581 
   Parameters are stored in ti struct.  */
582 
 
583 
static struct insn_op_struct *
584 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
585 
{
586 
  char *args = opcode->args;
587 
  int i, type;
588 
 
589 
  i = 0;
590 
  type = 0;
591 262 markom 
  /* In case we don't have any parameters, we add dummy read from r0.  */
592 
  if (!(*args)) {
593 263 markom 
    cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
594 262 markom 
    cur->data = 0;
595 355 markom 
    debug(9, "#%08X %08X\n", cur->type, cur->data);
596 262 markom 
    cur++;
597 
    return cur;
598 
  }
599 
 
600 138 markom 
  while (*args != '\0')
601 
    {
602 
      if (*args == 'r')
603 
        {
604 
          args++;
605 
          type |= OPTYPE_REG;
606 133 markom 
        }
607 138 markom 
      else if (isalpha (*args))
608 
        {
609 
          unsigned long arg;
610 
          arg = insn_extract(*args, opcode->encoding);
611 355 markom 
          debug(9, "%s : %08X ------\n", opcode->name, arg);
612 138 markom 
          if (letter_signed (*args))
613 
            {
614 
              type |= OPTYPE_SIG;
615 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
616 
            }
617 
 
618 
          /* Split argument to sequences of consecutive ones.  */
619 
          while (arg)
620 
            {
621 
              int shr = 0;
622 
              unsigned long tmp = arg, mask = 0;
623 
              while ((tmp & 1) == 0)
624 
                {
625 
                  shr++;
626 
                  tmp >>= 1;
627 
                }
628 
              while (tmp & 1)
629 
                {
630 
                  mask++;
631 
                  tmp >>= 1;
632 
                }
633 
              cur->type = type | shr;
634 
              cur->data = mask;
635 
              arg &= ~(((1 << mask) - 1) << shr);
636 355 markom 
              debug(6, "|%08X %08X\n", cur->type, cur->data);
637 138 markom 
              cur++;
638 
            }
639 
          args++;
640 
        }
641 
      else if (*args == '(')
642 
        {
643 
          /* Next param is displacement.  Later we will treat them as one operand.  */
644 
          cur--;
645 
          cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP;
646 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
647 138 markom 
          cur++;
648 
          type = 0;
649 
          i++;
650 
          args++;
651 
        }
652 
      else if (*args == OPERAND_DELIM)
653 
        {
654 
          cur--;
655 
          cur->type = type | cur->type | OPTYPE_OP;
656 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
657 138 markom 
          cur++;
658 
          type = 0;
659 
          i++;
660 
          args++;
661 
        }
662 
      else if (*args == '0')
663 
        {
664 
          cur->type = type;
665 
          cur->data = 0;
666 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
667 138 markom 
          cur++;
668 
          type = 0;
669 
          i++;
670 
          args++;
671 
        }
672 
      else if (*args == ')')
673 
        args++;
674 
      else
675 
        {
676 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
677 
          exit (1);
678 
        }
679 133 markom 
    }
680 138 markom 
  cur--;
681 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
682 355 markom 
  debug(9, "#%08X %08X\n", cur->type, cur->data);
683 138 markom 
  cur++;
684 133 markom 
  return cur;
685 
}
686 
 
687 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
688 
 
689 
void
690 
build_automata()
691 
{
692 133 markom 
  int i, j;
693 
  unsigned long *end;
694 138 markom 
  struct insn_op_struct *cur;
695 
 
696 133 markom 
  automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
697 138 markom 
  ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
698 133 markom 
 
699 
  nuncovered = num_opcodes;
700 138 markom 
  printf("Building automata... ");
701 133 markom 
  /* Build temporary information about instructions.  */
702 138 markom 
  for (i = 0; i < num_opcodes; i++)
703 
    {
704 
      unsigned long ones, zeros;
705 
      char *encoding = or32_opcodes[i].encoding;
706 
      ones  = insn_extract('1', encoding);
707 
      zeros = insn_extract('0', encoding);
708 
      ti[i].insn_mask = ones | zeros;
709 
      ti[i].insn = ones;
710 
      ti[i].in_pass = curpass = 0;
711 344 markom 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
712 138 markom 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
713 
    }
714 133 markom 
 
715 
  /* Until all are covered search for best criteria to separate them.  */
716 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
717 
  if (end - automata > MAX_AUTOMATA_SIZE)
718 
    {
719 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
720 
      exit (1);
721 
    }
722 
  printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
723 
 
724 
  printf("Parsing operands data... ");
725 
  op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
726 
  op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
727 
  cur = op_data;
728 
  for (i = 0; i < num_opcodes; i++)
729 
    {
730 
      op_start[i] = cur;
731 
      cur = parse_params (&or32_opcodes[i], cur);
732 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
733 
        {
734 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
735 
          exit (1);
736 
        }
737 
    }
738 
  printf("done.\n");
739 133 markom 
}
740 
 
741 138 markom 
void destruct_automata ()
742 
{
743 
  free (ti);
744 133 markom 
  free (automata);
745 138 markom 
  free (op_data);
746 
  free (op_start);
747 133 markom 
}
748 
 
749 
/* Decodes instruction and returns instruction index.  */
750 138 markom 
int insn_decode (unsigned int insn)
751 
{
752 133 markom 
  unsigned long *a = automata;
753 138 markom 
  int i;
754 
  while (!(*a & LEAF_FLAG))
755 
    {
756 
      unsigned int first = *a;
757 355 markom 
      debug(9, "%i ", a - automata);
758 138 markom 
      a++;
759 
      i = (insn >> first) & *a;
760 
      a++;
761 
      if (!*(a + i))
762 
        { /* Invalid instruction found?  */
763 355 markom 
          debug(9, "XXX\n", i);
764 138 markom 
          return -1;
765 
        }
766 
      a = automata + *(a + i);
767 
    }
768 
  i = *a & ~LEAF_FLAG;
769 355 markom 
  debug(9, "%i\n", i);
770 138 markom 
  /* Final check - do we have direct match?
771 
     (based on or32_opcodes this should be the only possibility,
772 
     but in case of invalid/missing instruction we must perform a check)  */
773 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
774 
    return i;
775 
  else
776 
    return -1;
777 133 markom 
}

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