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[/] [or1k/] [tags/] [pre-GNU-merge/] [insight/] [opcodes/] [or32.c] - Blame information for rev 1778

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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>
26 371 markom 
#include <ctype.h>
27 133 markom 
 
28 371 markom 
 
29 138 markom 
#ifdef HAVE_CONFIG_H
30 
# include "config.h"
31 
#endif
32 133 markom 
#include "opcode/or32.h"
33 
 
34 
/* **INDENT-OFF** */
35 
 
36 
CONST struct or32_letter or32_letters[] =
37 
{
38 
{ 'A', NUM_UNSIGNED },
39 
{ 'B', NUM_UNSIGNED },
40 
{ 'D', NUM_UNSIGNED },
41 
{ 'I', NUM_SIGNED },
42 
{ 'K', NUM_UNSIGNED },
43 
{ 'L', NUM_UNSIGNED },
44 
{ 'N', NUM_SIGNED },
45 
{ '0', NUM_UNSIGNED },
46 
{ '\0', 0 }     /* dummy entry */
47 
};
48 
 
49 
/* Opcode encoding:
50 
   machine[31:30]: first two bits of opcode
51 
                   00 - neither of source operands is GPR
52 
                   01 - second source operand is GPR (rB)
53 
                   10 - first source operand is GPR (rA)
54 
                   11 - both source operands are GPRs (rA and rB)
55 
   machine[29:26]: next four bits of opcode
56 
   machine[25:00]: instruction operands (specific to individual instruction)
57 
 
58 
  Recommendation: irrelevant instruction bits should be set with a value of
59 
  bits in same positions of instruction preceding current instruction in the
60 
  code (when assembling).
61 
*/
62 
 
63 
#define EFN &l_none
64 
 
65 
#ifdef HAS_EXECUTION
66 
#define EF(func) &(func)
67 
#define EFI &l_invalid
68 
#else  /* HAS_EXECUTION */
69 
#define EF(func) EFN
70 
#define EFI EFN
71 
#endif /* HAS_EXECUTION */
72 
 
73 
CONST struct or32_opcode or32_opcodes[] =
74 
{
75 
 
76 
{ "l.j",       "N",            "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY },
77 
{ "l.jal",     "N",            "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY },
78 138 markom 
{ "l.bnf",     "N",            "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG},
79 
{ "l.bf",      "N",            "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG },
80 627 markom 
{ "l.nop",     "K",            "00 0x5  01--- ----- KKKK KKKK KKKK KKKK", EF(l_nop), 0 },
81 133 markom 
{ "l.movhi",   "rD,K",         "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/
82 
{ "l.macrc",   "rD",           "00 0x6  DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/
83 627 markom 
 
84 133 markom 
{ "l.sys",     "K",            "00 0x8  00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 },
85 144 chris 
{ "l.trap",    "K",            "00 0x8  01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0 }, /* CZ 21/06/01 */
86 133 markom 
{ "l.msync",   "",             "00 0x8  10000 00000 0000 0000 0000 0000", EFN, 0 },
87 
{ "l.psync",   "",             "00 0x8  10100 00000 0000 0000 0000 0000", EFN, 0 },
88 
{ "l.csync",   "",             "00 0x8  11000 00000 0000 0000 0000 0000", EFN, 0 },
89 
{ "l.rfe",     "",             "00 0x9  ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY },
90 
 
91 
{ "lv.all_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
92 
{ "lv.all_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
93 
{ "lv.all_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
94 
{ "lv.all_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
95 
{ "lv.all_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
96 
{ "lv.all_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
97 
{ "lv.all_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
98 
{ "lv.all_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
99 
{ "lv.all_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
100 
{ "lv.all_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
101 
{ "lv.all_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
102 
{ "lv.all_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
103 
{ "lv.any_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 },
104 
{ "lv.any_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 },
105 
{ "lv.any_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 },
106 
{ "lv.any_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 },
107 
{ "lv.any_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 },
108 
{ "lv.any_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 },
109 
{ "lv.any_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 },
110 
{ "lv.any_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 },
111 
{ "lv.any_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 },
112 
{ "lv.any_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 },
113 
{ "lv.any_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 },
114 
{ "lv.any_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 },
115 
{ "lv.add.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 },
116 
{ "lv.add.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 },
117 
{ "lv.adds.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 },
118 
{ "lv.adds.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 },
119 
{ "lv.addu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 },
120 
{ "lv.addu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 },
121 
{ "lv.addus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 },
122 
{ "lv.addus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 },
123 
{ "lv.and",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 },
124 
{ "lv.avg.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 },
125 
{ "lv.avg.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 },
126 
{ "lv.cmp_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 },
127 
{ "lv.cmp_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 },
128 
{ "lv.cmp_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 },
129 
{ "lv.cmp_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 },
130 
{ "lv.cmp_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 },
131 
{ "lv.cmp_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 },
132 
{ "lv.cmp_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 },
133 
{ "lv.cmp_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 },
134 
{ "lv.cmp_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 },
135 
{ "lv.cmp_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 },
136 
{ "lv.cmp_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 },
137 
{ "lv.cmp_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 },
138 
{ "lv.madds.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 },
139 
{ "lv.max.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 },
140 
{ "lv.max.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 },
141 
{ "lv.merge.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 },
142 
{ "lv.merge.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 },
143 
{ "lv.min.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 },
144 
{ "lv.min.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 },
145 
{ "lv.msubs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 },
146 
{ "lv.muls.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 },
147 
{ "lv.nand",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 },
148 
{ "lv.nor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 },
149 
{ "lv.or",     "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 },
150 
{ "lv.pack.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 },
151 
{ "lv.pack.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 },
152 
{ "lv.packs.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 },
153 
{ "lv.packs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 },
154 
{ "lv.packus.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 },
155 
{ "lv.packus.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 },
156 
{ "lv.perm.n", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 },
157 
{ "lv.rl.b",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 },
158 
{ "lv.rl.h",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 },
159 
{ "lv.sll.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 },
160 
{ "lv.sll.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 },
161 
{ "lv.sll",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 },
162 
{ "lv.srl.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 },
163 
{ "lv.srl.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 },
164 
{ "lv.sra.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 },
165 
{ "lv.sra.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 },
166 
{ "lv.srl",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 },
167 
{ "lv.sub.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 },
168 
{ "lv.sub.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 },
169 
{ "lv.subs.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 },
170 
{ "lv.subs.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 },
171 
{ "lv.subu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 },
172 
{ "lv.subu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 },
173 
{ "lv.subus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 },
174 
{ "lv.subus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 },
175 
{ "lv.unpack.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 },
176 
{ "lv.unpack.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 },
177 
{ "lv.xor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 },
178 
{ "lv.cust1",  "",             "00 0xA  ----- ----- ---- ---- 0xC ----", EFI, 0 },
179 
{ "lv.cust2",  "",             "00 0xA  ----- ----- ---- ---- 0xD ----", EFI, 0 },
180 
{ "lv.cust3",  "",             "00 0xA  ----- ----- ---- ---- 0xE ----", EFI, 0 },
181 
{ "lv.cust4",  "",             "00 0xA  ----- ----- ---- ---- 0xF ----", EFI, 0 },
182 
 
183 
{ "lf.add.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
184 
{ "lf.sub.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
185 
{ "lf.mul.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
186 
{ "lf.div.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
187 
{ "lf.itof.s",  "rD,rA",       "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
188 
{ "lf.ftoi.s",  "rD,rA",       "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
189 
{ "lf.rem.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
190 
{ "lf.madd.s",  "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
191 
{ "lf.sfeq.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
192 
{ "lf.sfne.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
193 
{ "lf.sfgt.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
194 
{ "lf.sfge.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
195 
{ "lf.sflt.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
196 
{ "lf.sfle.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
197 
{ "lf.cust1.s", "",            "00 0xB  ----- ----- ---- ---- 0xE ----", EFI, 0 },
198 
 
199 
{ "lf.add.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
200 
{ "lf.sub.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
201 
{ "lf.mul.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
202 
{ "lf.div.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
203 
{ "lf.itof.d",  "rD,rA",       "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
204 
{ "lf.ftoi.d",  "rD,rA",       "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
205 
{ "lf.rem.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
206 
{ "lf.madd.d",  "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
207 
{ "lf.sfeq.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
208 
{ "lf.sfne.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
209 
{ "lf.sfgt.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
210 
{ "lf.sfge.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
211 
{ "lf.sflt.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
212 
{ "lf.sfle.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
213 
{ "lf.cust1.d", "",            "00 0xC  ----- ----- ---- ---- 0xE ----", EFI, 0 },
214 
 
215 
{ "lvf.ld",     "rD,0(rA)",    "00 0xD  DDDDD AAAAA ---- ---- 0x0 0x0", EFI, 0 },
216 
{ "lvf.lw",     "rD,0(rA)",    "00 0xD  DDDDD AAAAA ---- ---- 0x0 0x1", EFI, 0 },
217 
{ "lvf.sd",     "0(rA),rB",    "00 0xD  ----- AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
218 
{ "lvf.sw",     "0(rA),rB",    "00 0xD  ----- AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
219 
 
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 },
222 627 markom 
{ "l.maci",    "rB,I",         "01 0x3  IIIII ----- BBBB BIII IIII IIII", EF(l_mac), 0 },
223 174 markom 
{ "l.cust1",   "",             "01 0xC  ----- ----- ---- ---- ---- ----", EF(l_cust1), 0 },
224 
{ "l.cust2",   "",             "01 0xD  ----- ----- ---- ---- ---- ----", EF(l_cust2), 0 },
225 
{ "l.cust3",   "",             "01 0xE  ----- ----- ---- ---- ---- ----", EF(l_cust3), 0 },
226 
{ "l.cust4",   "",             "01 0xF  ----- ----- ---- ---- ---- ----", EF(l_cust4), 0 },
227 133 markom 
 
228 
{ "l.ld",      "rD,I(rA)",     "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
229 
{ "l.lwz",     "rD,I(rA)",     "10 0x1  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 },
230 
{ "l.lws",     "rD,I(rA)",     "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
231 
{ "l.lbz",     "rD,I(rA)",     "10 0x3  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 },
232 
{ "l.lbs",     "rD,I(rA)",     "10 0x4  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 },
233 
{ "l.lhz",     "rD,I(rA)",     "10 0x5  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 },
234 
{ "l.lhs",     "rD,I(rA)",     "10 0x6  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 },
235 
 
236 627 markom 
{ "l.addi",    "rD,rA,I",      "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), OR32_W_FLAG },
237 133 markom 
{ "l.addic",   "rD,rA,I",      "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
238 627 markom 
{ "l.andi",    "rD,rA,K",      "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), OR32_W_FLAG },
239 133 markom 
{ "l.ori",     "rD,rA,K",      "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0  },
240 
{ "l.xori",    "rD,rA,I",      "10 0xB  DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 },
241 
{ "l.muli",    "rD,rA,I",      "10 0xC  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
242 627 markom 
{ "l.mfspr",   "rD,rA,K",      "10 0xD  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 },
243 133 markom 
{ "l.slli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 },
244 
{ "l.srli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 },
245 
{ "l.srai",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 },
246 
{ "l.rori",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 },
247 
 
248 138 markom 
{ "l.sfeqi",   "rA,I",         "10 0xF  00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG },
249 
{ "l.sfnei",   "rA,I",         "10 0xF  00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG },
250 
{ "l.sfgtui",  "rA,I",         "10 0xF  00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG },
251 
{ "l.sfgeui",  "rA,I",         "10 0xF  00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG },
252 
{ "l.sfltui",  "rA,I",         "10 0xF  00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG },
253 
{ "l.sfleui",  "rA,I",         "10 0xF  00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG },
254 
{ "l.sfgtsi",  "rA,I",         "10 0xF  01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG },
255 
{ "l.sfgesi",  "rA,I",         "10 0xF  01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG },
256 
{ "l.sfltsi",  "rA,I",         "10 0xF  01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG },
257 
{ "l.sflesi",  "rA,I",         "10 0xF  01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG },
258 133 markom 
 
259 627 markom 
{ "l.mtspr",   "rA,rB,K",      "11 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
260 
{ "l.mac",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x1", EF(l_mac), 0 }, /*MM*/
261 
{ "l.msb",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x2", EF(l_msb), 0 }, /*MM*/
262 
 
263 133 markom 
{ "l.sd",      "I(rA),rB",     "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 },
264 
{ "l.sw",      "I(rA),rB",     "11 0x5  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 },
265 
{ "l.sb",      "I(rA),rB",     "11 0x6  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 },
266 
{ "l.sh",      "I(rA),rB",     "11 0x7  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
267 
 
268 627 markom 
{ "l.add",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), OR32_W_FLAG },
269 133 markom 
{ "l.addc",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1", EFI, 0 },
270 
{ "l.sub",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 },
271 627 markom 
{ "l.and",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), OR32_W_FLAG },
272 133 markom 
{ "l.or",      "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 },
273 
{ "l.xor",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 },
274 
{ "l.mul",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 },
275 627 markom 
 
276 133 markom 
{ "l.sll",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 },
277 
{ "l.srl",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 },
278 
{ "l.sra",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 },
279 
{ "l.ror",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 },
280 
{ "l.div",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x9", EF(l_div), 0 },
281 
{ "l.divu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xA", EF(l_divu), 0 },
282 
{ "l.mulu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 },
283 627 markom 
{ "l.extbs",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xC", EF(l_extbs), 0 },
284 
{ "l.exths",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xC", EF(l_exths), 0 },
285 
{ "l.extws",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xD", EF(l_extws), 0 },
286 
{ "l.extbz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 11-- 0xC", EF(l_extbz), 0 },
287 
{ "l.exthz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 10-- 0xC", EF(l_exthz), 0 },
288 
{ "l.extwz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xD", EF(l_extwz), 0 },
289 
{ "l.cmov",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE", EF(l_cmov), OR32_R_FLAG },
290 133 markom 
{ "l.ff1",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 },
291 
 
292 138 markom 
{ "l.sfeq",    "rA,rB",        "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG },
293 
{ "l.sfne",    "rA,rB",        "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG },
294 
{ "l.sfgtu",   "rA,rB",        "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG },
295 
{ "l.sfgeu",   "rA,rB",        "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG },
296 
{ "l.sfltu",   "rA,rB",        "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG },
297 
{ "l.sfleu",   "rA,rB",        "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG },
298 
{ "l.sfgts",   "rA,rB",        "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG },
299 
{ "l.sfges",   "rA,rB",        "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG },
300 
{ "l.sflts",   "rA,rB",        "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG },
301 
{ "l.sfles",   "rA,rB",        "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
302 133 markom 
 
303 
{ "l.cust5",   "",             "11 0xC  ----- ----- ---- ---- ---- ----", EFI, 0 },
304 
{ "l.cust6",   "",             "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
305 
{ "l.cust7",   "",             "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
306 
{ "l.cust8",   "",             "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
307 
 
308 221 markom 
/* This section should not be defined in or1ksim, since it contains duplicates,
309 
   which would cause machine builder to complain.  */
310 374 simons 
#ifdef HAS_CUST
311 221 markom 
{ "l.cust5_1",   "rD",         "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
312 
{ "l.cust5_2",   "rD,rA"   ,   "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
313 
{ "l.cust5_3",   "rD,rA,rB",   "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
314 
 
315 
{ "l.cust6_1",   "rD",         "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
316 
{ "l.cust6_2",   "rD,rA"   ,   "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
317 
{ "l.cust6_3",   "rD,rA,rB",   "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
318 
 
319 
{ "l.cust7_1",   "rD",         "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
320 
{ "l.cust7_2",   "rD,rA"   ,   "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
321 
{ "l.cust7_3",   "rD,rA,rB",   "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
322 
 
323 
{ "l.cust8_1",   "rD",         "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
324 
{ "l.cust8_2",   "rD,rA"   ,   "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
325 
{ "l.cust8_3",   "rD,rA,rB",   "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
326 
#endif
327 
 
328 133 markom 
{ "", "", "", EFI, 0 }           /* Dummy entry, not included in num_opcodes.  This
329 
                           lets code examine entry i+1 without checking
330 
                           if we've run off the end of the table.  */
331 
};
332 
 
333 
#undef EFI
334 
#undef EFN
335 
#undef EF
336 
 
337 
/* **INDENT-ON** */
338 
 
339 371 markom 
/* Define dummy, if debug is not defined.  */
340 
#if !defined HAS_DEBUG
341 
void debug(int level, const char *format, ...)
342 
{
343 
  /* Just to get rid of warnings.  */
344 
  format = level = 0;
345 
}
346 
#endif
347 133 markom 
 
348 371 markom 
CONST int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
349 
 
350 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
351 
int
352 
insn_len(int insn_index)
353 133 markom 
{
354 
  insn_index = 0; /* Just to get rid that warning.  */
355 
  return 4;
356 
}
357 
 
358 
/* Is individual insn's operand signed or unsigned? */
359 138 markom 
int
360 
letter_signed(char l)
361 133 markom 
{
362 
  CONST struct or32_letter *pletter;
363 
 
364 
  for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
365 
    if (pletter->letter == l)
366 
      return pletter->sign;
367 
 
368 
  printf("letter_signed(%c): Unknown letter.\n", l);
369 
  return 0;
370 
}
371 
 
372 
/* Number of letters in the individual lettered operand. */
373 138 markom 
int
374 
letter_range(char l)
375 133 markom 
{
376 
  CONST struct or32_opcode *pinsn;
377 
  char *enc;
378 
  int range = 0;
379 
 
380 138 markom 
  for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
381 
    {
382 
      if (strchr(pinsn->encoding,l))
383 
        {
384 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
385 
            if ((*enc == '0') && (*(enc+1) == 'x'))
386 
              enc += 2;
387 
            else if (*enc == l)
388 
              range++;
389 
          return range;
390 133 markom 
        }
391 
    }
392 
  printf("\nABORT: letter_range(%c): Never used letter.\n", l);
393 
  exit(1);
394 
}
395 
 
396 
/* MM: Returns index of given instruction name.  */
397 138 markom 
int
398 
insn_index (char *insn)
399 
{
400 133 markom 
  int i, found = -1;
401 371 markom 
  for (i = 0; i < num_opcodes; i++)
402 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
403 
      {
404 
        found = i;
405 
        break;
406 
      }
407 133 markom 
  return found;
408 
}
409 
 
410 138 markom 
CONST char *insn_name(int index)
411 
{
412 371 markom 
  if (index >= 0 && index < num_opcodes)
413 133 markom 
    return or32_opcodes[index].name;
414 
  else
415 
    return "???";
416 
}
417 
 
418 138 markom 
void l_none()
419 
{
420 133 markom 
}
421 
 
422 
 
423 
/*** Finite automata for instruction decoding building code ***/
424 
 
425 
/* Find simbols in encoding.  */
426 
static unsigned long
427 
insn_extract(param_ch, enc_initial)
428 
     char param_ch;
429 
     char *enc_initial;
430 
{
431 
  char *enc;
432 
  unsigned long ret = 0;
433 
  unsigned opc_pos = 32;
434 
  for (enc = enc_initial; *enc != '\0'; )
435 
    if ((*enc == '0') && (*(enc+1) == 'x'))
436 
      {
437 
        unsigned long tmp = strtol(enc+2, NULL, 16);
438 
        opc_pos -= 4;
439 138 markom 
        if (param_ch == '0' || param_ch == '1')
440 
          {
441 
            if (param_ch == '0')
442 
              tmp = 15 - tmp;
443 
            ret |= tmp << opc_pos;
444 
          }
445 133 markom 
        enc += 3;
446 
      }
447 138 markom 
    else
448 
      {
449 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
450 
          {
451 
            opc_pos--;
452 
            if (param_ch == *enc)
453 
              ret |= 1 << opc_pos;
454 
          }
455 
        enc++;
456 133 markom 
      }
457 
  return ret;
458 
}
459 
 
460 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
461 
#define MAX_OP_TABLE_SIZE (1200)
462 133 markom 
#define LEAF_FLAG         (0x80000000)
463 
#define MAX_LEN           (8)
464 
 
465 
#ifndef MIN
466 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
467 
#endif
468 
 
469 
unsigned long *automata;
470 
int nuncovered;
471 
int curpass = 0;
472 
 
473 138 markom 
/* MM: Struct that hold runtime build information about instructions.  */
474 
struct temp_insn_struct
475 
{
476 
  unsigned long insn;
477 
  unsigned long insn_mask;
478 
  int in_pass;
479 
} *ti;
480 
 
481 
struct insn_op_struct *op_data, **op_start;
482 
 
483 
/* Recursive utility function used to find best match and to build automata.  */
484 
 
485 
static unsigned long *
486 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
487 
{
488 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
489 
  unsigned long cur_mask = mask;
490 
  unsigned long *next;
491 
 
492 
  for (i = 0; i < num_opcodes; i++)
493 138 markom 
    if (ti[i].in_pass == pass)
494 
      {
495 
        cur_mask &= ti[i].insn_mask;
496 
        ninstr++;
497 
        last_match = i;
498 
      }
499 
 
500 344 markom 
  debug(8, "%08X %08X\n", mask, cur_mask);
501 138 markom 
  if (ninstr == 0)
502 
    return 0;
503 
  if (ninstr == 1)
504 
    {
505 
      /* Leaf holds instruction index. */
506 344 markom 
      debug(8, "%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
507 138 markom 
      *cur = LEAF_FLAG | last_match;
508 
      cur++;
509 
      nuncovered--;
510 
    } else {
511 
      /* Find longest match.  */
512 
      for (i = 0; i < 32; i++)
513 
        {
514 
          int len;
515 
          for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
516 
            {
517 
              unsigned long m = (1UL << ((unsigned long)len)) - 1;
518 344 markom 
              debug(9, " (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);
519 138 markom 
              if ((m & (cur_mask >> (unsigned)i)) == m)
520 
                {
521 
                  best_len = len;
522 
                  best_first = i;
523 344 markom 
                  debug(9, "!");
524 138 markom 
                }
525 
              else
526 
                break;
527 
            }
528 
        }
529 344 markom 
      debug(9, "\n");
530 138 markom 
      if (!best_len)
531 
        {
532 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
533 
          for (i = 0; i < num_opcodes; i++)
534 
            if (ti[i].in_pass == pass)
535 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
536 
 
537 
          fprintf (stderr, "\n");
538 
          exit (1);
539 
        }
540 344 markom 
      debug(8, "%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
541 138 markom 
      *cur = best_first;
542 
      cur++;
543 
      *cur = (1 << best_len) - 1;
544 
      cur++;
545 
      next = cur;
546 
      /* Allocate space for pointers.  */
547 
      cur += 1 << best_len;
548 
      cur_mask = (1 << (unsigned long)best_len) - 1;
549 
 
550 
      for (i = 0; i < (1 << (unsigned long)best_len); i++)
551 
        {
552 
          int j;
553 
          unsigned long *c;
554 
          curpass++;
555 
          for (j = 0; j < num_opcodes; j++)
556 
            if (ti[j].in_pass == pass
557 371 markom 
                && ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i
558 138 markom 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
559 
              ti[j].in_pass = curpass;
560 
 
561 344 markom 
          debug(9, "%08X %08X %i\n", mask, cur_mask, best_first);
562 138 markom 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
563 
          if (c)
564 
            {
565 344 markom 
              debug(8, "%i> #%X -> %u\n", next - automata, i, cur - automata);
566 138 markom 
              *next = cur - automata;
567 
              cur = c;
568 
            }
569 
          else
570 
            {
571 344 markom 
              debug(8, "%i> N/A\n", next - automata);
572 138 markom 
              *next = 0;
573 
            }
574 
          next++;
575 
        }
576 133 markom 
    }
577 138 markom 
  return cur;
578 
}
579 133 markom 
 
580 138 markom 
/* Returns number of nonzero bits. */
581 
static int
582 
num_ones (unsigned long value)
583 
{
584 
  int c = 0;
585 
  while (value)
586 
    {
587 
      if (value & 1)
588 
        c++;
589 
      value >>= 1;
590 133 markom 
    }
591 138 markom 
  return c;
592 
}
593 133 markom 
 
594 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
595 
   Parameters are stored in ti struct.  */
596 
 
597 
static struct insn_op_struct *
598 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
599 
{
600 
  char *args = opcode->args;
601 
  int i, type;
602 
 
603 
  i = 0;
604 
  type = 0;
605 262 markom 
  /* In case we don't have any parameters, we add dummy read from r0.  */
606 
  if (!(*args)) {
607 263 markom 
    cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
608 262 markom 
    cur->data = 0;
609 355 markom 
    debug(9, "#%08X %08X\n", cur->type, cur->data);
610 262 markom 
    cur++;
611 
    return cur;
612 
  }
613 
 
614 138 markom 
  while (*args != '\0')
615 
    {
616 
      if (*args == 'r')
617 
        {
618 
          args++;
619 
          type |= OPTYPE_REG;
620 133 markom 
        }
621 138 markom 
      else if (isalpha (*args))
622 
        {
623 
          unsigned long arg;
624 
          arg = insn_extract(*args, opcode->encoding);
625 355 markom 
          debug(9, "%s : %08X ------\n", opcode->name, arg);
626 138 markom 
          if (letter_signed (*args))
627 
            {
628 
              type |= OPTYPE_SIG;
629 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
630 
            }
631 
 
632 
          /* Split argument to sequences of consecutive ones.  */
633 
          while (arg)
634 
            {
635 
              int shr = 0;
636 
              unsigned long tmp = arg, mask = 0;
637 
              while ((tmp & 1) == 0)
638 
                {
639 
                  shr++;
640 
                  tmp >>= 1;
641 
                }
642 
              while (tmp & 1)
643 
                {
644 
                  mask++;
645 
                  tmp >>= 1;
646 
                }
647 
              cur->type = type | shr;
648 
              cur->data = mask;
649 
              arg &= ~(((1 << mask) - 1) << shr);
650 355 markom 
              debug(6, "|%08X %08X\n", cur->type, cur->data);
651 138 markom 
              cur++;
652 
            }
653 
          args++;
654 
        }
655 
      else if (*args == '(')
656 
        {
657 
          /* Next param is displacement.  Later we will treat them as one operand.  */
658 
          cur--;
659 
          cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP;
660 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
661 138 markom 
          cur++;
662 
          type = 0;
663 
          i++;
664 
          args++;
665 
        }
666 
      else if (*args == OPERAND_DELIM)
667 
        {
668 
          cur--;
669 
          cur->type = type | cur->type | OPTYPE_OP;
670 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
671 138 markom 
          cur++;
672 
          type = 0;
673 
          i++;
674 
          args++;
675 
        }
676 
      else if (*args == '0')
677 
        {
678 
          cur->type = type;
679 
          cur->data = 0;
680 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
681 138 markom 
          cur++;
682 
          type = 0;
683 
          i++;
684 
          args++;
685 
        }
686 
      else if (*args == ')')
687 
        args++;
688 
      else
689 
        {
690 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
691 
          exit (1);
692 
        }
693 133 markom 
    }
694 138 markom 
  cur--;
695 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
696 355 markom 
  debug(9, "#%08X %08X\n", cur->type, cur->data);
697 138 markom 
  cur++;
698 133 markom 
  return cur;
699 
}
700 
 
701 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
702 
 
703 
void
704 
build_automata()
705 
{
706 371 markom 
  int i;
707 133 markom 
  unsigned long *end;
708 138 markom 
  struct insn_op_struct *cur;
709 
 
710 133 markom 
  automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
711 138 markom 
  ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
712 133 markom 
 
713 
  nuncovered = num_opcodes;
714 138 markom 
  printf("Building automata... ");
715 133 markom 
  /* Build temporary information about instructions.  */
716 138 markom 
  for (i = 0; i < num_opcodes; i++)
717 
    {
718 
      unsigned long ones, zeros;
719 
      char *encoding = or32_opcodes[i].encoding;
720 
      ones  = insn_extract('1', encoding);
721 
      zeros = insn_extract('0', encoding);
722 
      ti[i].insn_mask = ones | zeros;
723 
      ti[i].insn = ones;
724 
      ti[i].in_pass = curpass = 0;
725 344 markom 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
726 138 markom 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
727 
    }
728 133 markom 
 
729 
  /* Until all are covered search for best criteria to separate them.  */
730 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
731 
  if (end - automata > MAX_AUTOMATA_SIZE)
732 
    {
733 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
734 
      exit (1);
735 
    }
736 
  printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
737 371 markom 
 
738 138 markom 
  printf("Parsing operands data... ");
739 
  op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
740 
  op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
741 
  cur = op_data;
742 
  for (i = 0; i < num_opcodes; i++)
743 
    {
744 
      op_start[i] = cur;
745 
      cur = parse_params (&or32_opcodes[i], cur);
746 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
747 
        {
748 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
749 
          exit (1);
750 
        }
751 
    }
752 
  printf("done.\n");
753 133 markom 
}
754 
 
755 138 markom 
void destruct_automata ()
756 
{
757 
  free (ti);
758 133 markom 
  free (automata);
759 138 markom 
  free (op_data);
760 
  free (op_start);
761 133 markom 
}
762 
 
763 
/* Decodes instruction and returns instruction index.  */
764 138 markom 
int insn_decode (unsigned int insn)
765 
{
766 133 markom 
  unsigned long *a = automata;
767 138 markom 
  int i;
768 
  while (!(*a & LEAF_FLAG))
769 
    {
770 
      unsigned int first = *a;
771 355 markom 
      debug(9, "%i ", a - automata);
772 138 markom 
      a++;
773 
      i = (insn >> first) & *a;
774 
      a++;
775 
      if (!*(a + i))
776 
        { /* Invalid instruction found?  */
777 355 markom 
          debug(9, "XXX\n", i);
778 138 markom 
          return -1;
779 
        }
780 
      a = automata + *(a + i);
781 
    }
782 
  i = *a & ~LEAF_FLAG;
783 355 markom 
  debug(9, "%i\n", i);
784 138 markom 
  /* Final check - do we have direct match?
785 
     (based on or32_opcodes this should be the only possibility,
786 
     but in case of invalid/missing instruction we must perform a check)  */
787 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
788 
    return i;
789 
  else
790 
    return -1;
791 133 markom 
}
792 371 markom 
 
793 
static char disassembled_str[50];
794 
char *disassembled = &disassembled_str[0];
795 
 
796 
/* Automagically does zero- or sign- extension and also finds correct
797 
   sign bit position if sign extension is correct extension. Which extension
798 
   is proper is figured out from letter description. */
799 
 
800 
unsigned long
801 
extend_imm(unsigned long imm, char l)
802 
{
803 
  unsigned long mask;
804 
  int letter_bits;
805 
 
806 
  /* First truncate all bits above valid range for this letter
807 
     in case it is zero extend. */
808 
  letter_bits = letter_range(l);
809 
  mask = (1 << letter_bits) - 1;
810 
  imm &= mask;
811 
 
812 
  /* Do sign extend if this is the right one. */
813 
  if (letter_signed(l) && (imm >> (letter_bits - 1)))
814 
    imm |= (~mask);
815 
 
816 
  return imm;
817 
}
818 
 
819 
static unsigned long
820 
or32_extract(param_ch, enc_initial, insn)
821 
     char param_ch;
822 
     char *enc_initial;
823 
     unsigned long insn;
824 
{
825 
  char *enc;
826 
  unsigned long ret = 0;
827 
  int opc_pos = 0;
828 
  int param_pos = 0;
829 
 
830 
  for (enc = enc_initial; *enc != '\0'; enc++)
831 
    if (*enc == param_ch)
832 
      {
833 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
834 
          continue;
835 
        else
836 
          param_pos++;
837 
      }
838 
 
839 
#if DEBUG
840 
  printf("or32_extract: %x ", param_pos);
841 
#endif
842 
  opc_pos = 32;
843 
  for (enc = enc_initial; *enc != '\0'; )
844 
    if ((*enc == '0') && (*(enc+1) == 'x'))
845 
      {
846 
        opc_pos -= 4;
847 
        if ((param_ch == '0') || (param_ch == '1'))
848 
          {
849 
            unsigned long tmp = strtol(enc, NULL, 16);
850 
#if DEBUG
851 
            printf(" enc=%s, tmp=%x ", enc, tmp);
852 
#endif
853 
            if (param_ch == '0')
854 
              tmp = 15 - tmp;
855 
            ret |= tmp << opc_pos;
856 
          }
857 
        enc += 3;
858 
      }
859 
    else if ((*enc == '0') || (*enc == '1'))
860 
      {
861 
        opc_pos--;
862 
        if (param_ch == *enc)
863 
          ret |= 1 << opc_pos;
864 
        enc++;
865 
      }
866 
    else if (*enc == param_ch)
867 
      {
868 
        opc_pos--;
869 
        param_pos--;
870 
#if DEBUG
871 
        printf("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
872 
#endif
873 
        if (islower(param_ch))
874 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
875 
        else
876 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
877 
        enc++;
878 
      }
879 
    else if (isalpha(*enc))
880 
      {
881 
        opc_pos--;
882 
        enc++;
883 
      }
884 
    else if (*enc == '-')
885 
      {
886 
        opc_pos--;
887 
        enc++;
888 
      }
889 
    else
890 
      enc++;
891 
 
892 
#if DEBUG
893 
  printf ("ret=%x\n", ret);
894 
#endif
895 
  return ret;
896 
}
897 
 
898 
/* Print register. Used only by print_insn. */
899 
 
900 
static void
901 
or32_print_register (param_ch, encoding, insn)
902 
     char param_ch;
903 
     char *encoding;
904 
     unsigned long insn;
905 
{
906 
  int regnum = or32_extract(param_ch, encoding, insn);
907 
 
908 
   sprintf (disassembled, "%sr%d", disassembled, regnum);
909 
}
910 
 
911 
/* Print immediate. Used only by print_insn. */
912 
 
913 
static void
914 
or32_print_immediate (param_ch, encoding, insn)
915 
     char param_ch;
916 
     char *encoding;
917 
     unsigned long insn;
918 
{
919 
  int imm = or32_extract (param_ch, encoding, insn);
920 
 
921 
  imm = extend_imm(imm, param_ch);
922 
 
923 
  if (letter_signed(param_ch))
924 
    {
925 
      if (imm < 0)
926 
        sprintf (disassembled, "%s%d", disassembled, imm);
927 
      else
928 
        sprintf (disassembled, "%s0x%x", disassembled, imm);
929 
    }
930 
  else
931 
    sprintf (disassembled, "%s%#x", disassembled, imm);
932 
}
933 
 
934 
/* Disassemble one instruction from insn to disassemble.
935 
   Return the size of the instruction.  */
936 
 
937 
int
938 
disassemble_insn (insn)
939 
     unsigned long insn;
940 
{
941 
  int index;
942 
  index = insn_decode (insn);
943 
 
944 
  if (index >= 0)
945 
    {
946 
      struct or32_opcode const *opcode = &or32_opcodes[index];
947 
      char *s;
948 
 
949 
      sprintf(disassembled, "%s ", opcode->name);
950 
      for (s = opcode->args; *s != '\0'; ++s)
951 
        {
952 
          switch (*s)
953 
            {
954 
            case '\0':
955 
              return 4;
956 
 
957 
            case 'r':
958 
              or32_print_register(*++s, opcode->encoding, insn);
959 
              break;
960 
 
961 
            default:
962 
              if (strchr (opcode->encoding, *s))
963 
                or32_print_immediate (*s, opcode->encoding, insn);
964 
              else
965 
                sprintf(disassembled, "%s%c", disassembled, *s);
966 
            }
967 
        }
968 
    }
969 
  else
970 
    {
971 
      /* This used to be %8x for binutils.  */
972 
      sprintf(disassembled, "%s.word 0x%08x", disassembled, insn);
973 
    }
974 
  return insn_len (insn);
975 
}

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