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[/] [or1k/] [tags/] [nog_patch_66/] [gen_or1k_isa/] [sources/] [opcode/] [or32.c] - Blame information for rev 709

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

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