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[/] [or1k/] [trunk/] [insight/] [opcodes/] [or32.c] - Blame information for rev 1308

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1 133 markom 
/* Table of opcodes for the OpenRISC 1000 ISA.
2 
   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
3 
   Contributed by Damjan Lampret (lampret@opencores.org).
4 
 
5 717 markom 
This file is part of gen_or1k_isa, or1ksim, GDB and GAS.
6 133 markom 
 
7 
This program is free software; you can redistribute it and/or modify
8 
it under the terms of the GNU General Public License as published by
9 
the Free Software Foundation; either version 2 of the License, or
10 
(at your option) any later version.
11 
 
12 
This program is distributed in the hope that it will be useful,
13 
but WITHOUT ANY WARRANTY; without even the implied warranty of
14 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 
GNU General Public License for more details.
16 
 
17 
You should have received a copy of the GNU General Public License
18 
along with this program; if not, write to the Free Software
19 
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
20 
 
21 1114 lampret 
/*
22 
 * $Log: not supported by cvs2svn $
23 1308 phoenix 
 * Revision 1.34  2004/06/27 22:56:48  lampret
24 
 * Updated instruction set descriptions. Changed FP instructions encoding.
25 
 *
26 1295 lampret 
 * Revision 1.33  2004/05/09 19:52:31  lampret
27 
 * Changed desciption of the l.cust5 insns
28 
 *
29 1285 lampret 
 * Revision 1.31  2003/07/01 19:34:49  csanchez
30 
 * Added support for l.addc instruction.
31 
 *
32 1169 csanchez 
 * Revision 1.30  2003/01/28 03:49:24  lampret
33 
 * Added cvs log keywords
34 
 *
35 1114 lampret 
 */
36 
 
37 133 markom 
/* We treat all letters the same in encode/decode routines so
38 
   we need to assign some characteristics to them like signess etc.*/
39 
#include <string.h>
40 
#include <stdio.h>
41 
#include <stdlib.h>
42 371 markom 
#include <ctype.h>
43 133 markom 
 
44 371 markom 
 
45 138 markom 
#ifdef HAVE_CONFIG_H
46 
# include "config.h"
47 
#endif
48 1308 phoenix 
#include "abstract.h"
49 133 markom 
#include "opcode/or32.h"
50 1308 phoenix 
#include "debug.h"
51 133 markom 
 
52 
/* **INDENT-OFF** */
53 
 
54 
CONST struct or32_letter or32_letters[] =
55 
{
56 
{ 'A', NUM_UNSIGNED },
57 
{ 'B', NUM_UNSIGNED },
58 
{ 'D', NUM_UNSIGNED },
59 
{ 'I', NUM_SIGNED },
60 
{ 'K', NUM_UNSIGNED },
61 
{ 'L', NUM_UNSIGNED },
62 
{ 'N', NUM_SIGNED },
63 
{ '0', NUM_UNSIGNED },
64 
{ '\0', 0 }     /* dummy entry */
65 
};
66 
 
67 
/* Opcode encoding:
68 
   machine[31:30]: first two bits of opcode
69 
                   00 - neither of source operands is GPR
70 
                   01 - second source operand is GPR (rB)
71 
                   10 - first source operand is GPR (rA)
72 
                   11 - both source operands are GPRs (rA and rB)
73 
   machine[29:26]: next four bits of opcode
74 
   machine[25:00]: instruction operands (specific to individual instruction)
75 
 
76 
  Recommendation: irrelevant instruction bits should be set with a value of
77 
  bits in same positions of instruction preceding current instruction in the
78 
  code (when assembling).
79 
*/
80 
 
81 706 markom 
#if defined HAS_EXECUTION && SIMPLE_EXECUTION
82 133 markom 
#define EFN &l_none
83 
#define EF(func) &(func)
84 
#define EFI &l_invalid
85 
#else  /* HAS_EXECUTION */
86 706 markom 
 
87 
#ifndef HAS_EXECUTION
88 
#define EFN &l_none
89 133 markom 
#define EF(func) EFN
90 
#define EFI EFN
91 706 markom 
#else  /* !HAS_EXECUTION */
92 
#define EFN "l_none"
93 
#define EFI "l_invalid"
94 
#ifdef __GNUC__
95 
#define EF(func) #func
96 
#else
97 
#define EF(func) "func"
98 
#endif
99 
#endif /* !HAS_EXECUTION */
100 
 
101 133 markom 
#endif /* HAS_EXECUTION */
102 
 
103 
CONST struct or32_opcode or32_opcodes[] =
104 
{
105 
 
106 
{ "l.j",       "N",            "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY },
107 
{ "l.jal",     "N",            "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY },
108 138 markom 
{ "l.bnf",     "N",            "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG},
109 
{ "l.bf",      "N",            "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG },
110 676 markom 
{ "l.nop",     "K",            "00 0x5  01--- ----- KKKK KKKK KKKK KKKK", EF(l_nop), 0 },
111 133 markom 
{ "l.movhi",   "rD,K",         "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/
112 
{ "l.macrc",   "rD",           "00 0x6  DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/
113 676 markom 
 
114 133 markom 
{ "l.sys",     "K",            "00 0x8  00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 },
115 144 chris 
{ "l.trap",    "K",            "00 0x8  01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0 }, /* CZ 21/06/01 */
116 133 markom 
{ "l.msync",   "",             "00 0x8  10000 00000 0000 0000 0000 0000", EFN, 0 },
117 
{ "l.psync",   "",             "00 0x8  10100 00000 0000 0000 0000 0000", EFN, 0 },
118 
{ "l.csync",   "",             "00 0x8  11000 00000 0000 0000 0000 0000", EFN, 0 },
119 
{ "l.rfe",     "",             "00 0x9  ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY },
120 
 
121 
{ "lv.all_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
122 
{ "lv.all_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
123 
{ "lv.all_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
124 
{ "lv.all_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
125 
{ "lv.all_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
126 
{ "lv.all_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
127 
{ "lv.all_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
128 
{ "lv.all_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
129 
{ "lv.all_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
130 
{ "lv.all_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
131 
{ "lv.all_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
132 
{ "lv.all_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
133 
{ "lv.any_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 },
134 
{ "lv.any_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 },
135 
{ "lv.any_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 },
136 
{ "lv.any_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 },
137 
{ "lv.any_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 },
138 
{ "lv.any_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 },
139 
{ "lv.any_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 },
140 
{ "lv.any_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 },
141 
{ "lv.any_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 },
142 
{ "lv.any_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 },
143 
{ "lv.any_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 },
144 
{ "lv.any_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 },
145 
{ "lv.add.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 },
146 
{ "lv.add.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 },
147 
{ "lv.adds.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 },
148 
{ "lv.adds.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 },
149 
{ "lv.addu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 },
150 
{ "lv.addu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 },
151 
{ "lv.addus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 },
152 
{ "lv.addus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 },
153 
{ "lv.and",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 },
154 
{ "lv.avg.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 },
155 
{ "lv.avg.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 },
156 
{ "lv.cmp_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 },
157 
{ "lv.cmp_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 },
158 
{ "lv.cmp_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 },
159 
{ "lv.cmp_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 },
160 
{ "lv.cmp_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 },
161 
{ "lv.cmp_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 },
162 
{ "lv.cmp_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 },
163 
{ "lv.cmp_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 },
164 
{ "lv.cmp_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 },
165 
{ "lv.cmp_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 },
166 
{ "lv.cmp_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 },
167 
{ "lv.cmp_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 },
168 
{ "lv.madds.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 },
169 
{ "lv.max.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 },
170 
{ "lv.max.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 },
171 
{ "lv.merge.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 },
172 
{ "lv.merge.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 },
173 
{ "lv.min.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 },
174 
{ "lv.min.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 },
175 
{ "lv.msubs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 },
176 
{ "lv.muls.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 },
177 
{ "lv.nand",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 },
178 
{ "lv.nor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 },
179 
{ "lv.or",     "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 },
180 
{ "lv.pack.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 },
181 
{ "lv.pack.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 },
182 
{ "lv.packs.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 },
183 
{ "lv.packs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 },
184 
{ "lv.packus.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 },
185 
{ "lv.packus.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 },
186 
{ "lv.perm.n", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 },
187 
{ "lv.rl.b",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 },
188 
{ "lv.rl.h",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 },
189 
{ "lv.sll.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 },
190 
{ "lv.sll.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 },
191 
{ "lv.sll",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 },
192 
{ "lv.srl.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 },
193 
{ "lv.srl.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 },
194 
{ "lv.sra.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 },
195 
{ "lv.sra.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 },
196 
{ "lv.srl",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 },
197 
{ "lv.sub.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 },
198 
{ "lv.sub.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 },
199 
{ "lv.subs.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 },
200 
{ "lv.subs.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 },
201 
{ "lv.subu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 },
202 
{ "lv.subu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 },
203 
{ "lv.subus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 },
204 
{ "lv.subus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 },
205 
{ "lv.unpack.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 },
206 
{ "lv.unpack.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 },
207 
{ "lv.xor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 },
208 
{ "lv.cust1",  "",             "00 0xA  ----- ----- ---- ---- 0xC ----", EFI, 0 },
209 
{ "lv.cust2",  "",             "00 0xA  ----- ----- ---- ---- 0xD ----", EFI, 0 },
210 
{ "lv.cust3",  "",             "00 0xA  ----- ----- ---- ---- 0xE ----", EFI, 0 },
211 
{ "lv.cust4",  "",             "00 0xA  ----- ----- ---- ---- 0xF ----", EFI, 0 },
212 
 
213 
{ "l.jr",      "rB",           "01 0x1  ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY },
214 
{ "l.jalr",    "rB",           "01 0x2  ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY },
215 676 markom 
{ "l.maci",    "rB,I",         "01 0x3  IIIII ----- BBBB BIII IIII IIII", EF(l_mac), 0 },
216 174 markom 
{ "l.cust1",   "",             "01 0xC  ----- ----- ---- ---- ---- ----", EF(l_cust1), 0 },
217 
{ "l.cust2",   "",             "01 0xD  ----- ----- ---- ---- ---- ----", EF(l_cust2), 0 },
218 
{ "l.cust3",   "",             "01 0xE  ----- ----- ---- ---- ---- ----", EF(l_cust3), 0 },
219 
{ "l.cust4",   "",             "01 0xF  ----- ----- ---- ---- ---- ----", EF(l_cust4), 0 },
220 133 markom 
 
221 
{ "l.ld",      "rD,I(rA)",     "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
222 
{ "l.lwz",     "rD,I(rA)",     "10 0x1  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 },
223 
{ "l.lws",     "rD,I(rA)",     "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
224 
{ "l.lbz",     "rD,I(rA)",     "10 0x3  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 },
225 
{ "l.lbs",     "rD,I(rA)",     "10 0x4  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 },
226 
{ "l.lhz",     "rD,I(rA)",     "10 0x5  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 },
227 
{ "l.lhs",     "rD,I(rA)",     "10 0x6  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 },
228 
 
229 676 markom 
{ "l.addi",    "rD,rA,I",      "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), OR32_W_FLAG },
230 133 markom 
{ "l.addic",   "rD,rA,I",      "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
231 676 markom 
{ "l.andi",    "rD,rA,K",      "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), OR32_W_FLAG },
232 133 markom 
{ "l.ori",     "rD,rA,K",      "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0  },
233 
{ "l.xori",    "rD,rA,I",      "10 0xB  DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 },
234 801 markom 
{ "l.muli",    "rD,rA,I",      "10 0xC  DDDDD AAAAA IIII IIII IIII IIII", EF(l_mul), 0 },
235 676 markom 
{ "l.mfspr",   "rD,rA,K",      "10 0xD  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 },
236 133 markom 
{ "l.slli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 },
237 
{ "l.srli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 },
238 
{ "l.srai",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 },
239 
{ "l.rori",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 },
240 
 
241 138 markom 
{ "l.sfeqi",   "rA,I",         "10 0xF  00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG },
242 
{ "l.sfnei",   "rA,I",         "10 0xF  00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG },
243 
{ "l.sfgtui",  "rA,I",         "10 0xF  00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG },
244 
{ "l.sfgeui",  "rA,I",         "10 0xF  00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG },
245 
{ "l.sfltui",  "rA,I",         "10 0xF  00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG },
246 
{ "l.sfleui",  "rA,I",         "10 0xF  00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG },
247 
{ "l.sfgtsi",  "rA,I",         "10 0xF  01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG },
248 
{ "l.sfgesi",  "rA,I",         "10 0xF  01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG },
249 
{ "l.sfltsi",  "rA,I",         "10 0xF  01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG },
250 
{ "l.sflesi",  "rA,I",         "10 0xF  01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG },
251 133 markom 
 
252 676 markom 
{ "l.mtspr",   "rA,rB,K",      "11 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
253 
{ "l.mac",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x1", EF(l_mac), 0 }, /*MM*/
254 
{ "l.msb",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x2", EF(l_msb), 0 }, /*MM*/
255 
 
256 1295 lampret 
{ "lf.add.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x0", EF(lf_add_s), 0 },
257 
{ "lf.sub.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x1", EF(lf_sub_s), 0 },
258 
{ "lf.mul.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x2", EF(lf_mul_s), 0 },
259 
{ "lf.div.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x3", EF(lf_div_s), 0 },
260 
{ "lf.itof.s",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x4", EF(lf_itof_s), 0 },
261 
{ "lf.ftoi.s",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x5", EF(lf_ftoi_s), 0 },
262 
{ "lf.rem.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x6", EF(lf_rem_s), 0 },
263 
{ "lf.madd.s",  "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x7", EF(lf_madd_s), 0 },
264 
{ "lf.sfeq.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0x8", EF(lf_sfeq_s), 0 },
265 
{ "lf.sfne.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0x9", EF(lf_sfne_s), 0 },
266 
{ "lf.sfgt.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xA", EF(lf_sfgt_s), 0 },
267 
{ "lf.sfge.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xB", EF(lf_sfge_s), 0 },
268 
{ "lf.sflt.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xC", EF(lf_sflt_s), 0 },
269 
{ "lf.sfle.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xD", EF(lf_sfle_s), 0 },
270 
{ "lf.cust1.s", "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0xD ----", EFI, 0 },
271 
 
272 
{ "lf.add.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
273 
{ "lf.sub.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
274 
{ "lf.mul.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
275 
{ "lf.div.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
276 
{ "lf.itof.d",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x4", EFI, 0 },
277 
{ "lf.ftoi.d",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x5", EFI, 0 },
278 
{ "lf.rem.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
279 
{ "lf.madd.d",  "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
280 
{ "lf.sfeq.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
281 
{ "lf.sfne.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
282 
{ "lf.sfgt.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
283 
{ "lf.sfge.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
284 
{ "lf.sflt.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
285 
{ "lf.sfle.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
286 
{ "lf.cust1.d", "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0xE ----", EFI, 0 },
287 
 
288 133 markom 
{ "l.sd",      "I(rA),rB",     "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 },
289 
{ "l.sw",      "I(rA),rB",     "11 0x5  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 },
290 
{ "l.sb",      "I(rA),rB",     "11 0x6  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 },
291 
{ "l.sh",      "I(rA),rB",     "11 0x7  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
292 
 
293 676 markom 
{ "l.add",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), OR32_W_FLAG },
294 1169 csanchez 
{ "l.addc",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1", EF(l_addc), OR32_W_FLAG },
295 133 markom 
{ "l.sub",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 },
296 676 markom 
{ "l.and",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), OR32_W_FLAG },
297 133 markom 
{ "l.or",      "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 },
298 
{ "l.xor",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 },
299 
{ "l.mul",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 },
300 676 markom 
 
301 133 markom 
{ "l.sll",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 },
302 
{ "l.srl",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 },
303 
{ "l.sra",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 },
304 
{ "l.ror",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 },
305 1034 lampret 
{ "l.div",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x9", EF(l_div), 0 },
306 
{ "l.divu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xA", EF(l_divu), 0 },
307 133 markom 
{ "l.mulu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 },
308 1295 lampret 
{ "l.extbs",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xC", EF(l_extbs), 0 },
309 
{ "l.exths",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xC", EF(l_exths), 0 },
310 
{ "l.extws",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xD", EF(l_extws), 0 },
311 
{ "l.extbz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 11-- 0xC", EF(l_extbz), 0 },
312 
{ "l.exthz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 10-- 0xC", EF(l_exthz), 0 },
313 
{ "l.extwz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xD", EF(l_extwz), 0 },
314 676 markom 
{ "l.cmov",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE", EF(l_cmov), OR32_R_FLAG },
315 133 markom 
{ "l.ff1",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 },
316 
 
317 138 markom 
{ "l.sfeq",    "rA,rB",        "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG },
318 
{ "l.sfne",    "rA,rB",        "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG },
319 
{ "l.sfgtu",   "rA,rB",        "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG },
320 
{ "l.sfgeu",   "rA,rB",        "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG },
321 
{ "l.sfltu",   "rA,rB",        "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG },
322 
{ "l.sfleu",   "rA,rB",        "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG },
323 
{ "l.sfgts",   "rA,rB",        "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG },
324 
{ "l.sfges",   "rA,rB",        "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG },
325 
{ "l.sflts",   "rA,rB",        "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG },
326 
{ "l.sfles",   "rA,rB",        "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
327 133 markom 
 
328 1285 lampret 
{ "l.cust5",   "rD,rA,rB,L,K", "11 0xC  DDDDD AAAAA BBBB BLLL LLLK KKKK", EFI, 0 },
329 133 markom 
{ "l.cust6",   "",             "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
330 
{ "l.cust7",   "",             "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
331 
{ "l.cust8",   "",             "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
332 
 
333 221 markom 
/* This section should not be defined in or1ksim, since it contains duplicates,
334 
   which would cause machine builder to complain.  */
335 374 simons 
#ifdef HAS_CUST
336 221 markom 
{ "l.cust5_1",   "rD",         "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
337 
{ "l.cust5_2",   "rD,rA"   ,   "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
338 
{ "l.cust5_3",   "rD,rA,rB",   "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
339 
 
340 
{ "l.cust6_1",   "rD",         "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
341 
{ "l.cust6_2",   "rD,rA"   ,   "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
342 
{ "l.cust6_3",   "rD,rA,rB",   "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
343 
 
344 
{ "l.cust7_1",   "rD",         "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
345 
{ "l.cust7_2",   "rD,rA"   ,   "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
346 
{ "l.cust7_3",   "rD,rA,rB",   "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
347 
 
348 
{ "l.cust8_1",   "rD",         "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
349 
{ "l.cust8_2",   "rD,rA"   ,   "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
350 
{ "l.cust8_3",   "rD,rA,rB",   "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
351 
#endif
352 
 
353 133 markom 
{ "", "", "", EFI, 0 }           /* Dummy entry, not included in num_opcodes.  This
354 
                           lets code examine entry i+1 without checking
355 
                           if we've run off the end of the table.  */
356 
};
357 
 
358 
#undef EFI
359 
#undef EFN
360 
#undef EF
361 
 
362 
/* **INDENT-ON** */
363 
 
364 371 markom 
/* Define dummy, if debug is not defined.  */
365 
#if !defined HAS_DEBUG
366 
void debug(int level, const char *format, ...)
367 
{
368 
  /* Just to get rid of warnings.  */
369 
  format = level = 0;
370 
}
371 
#endif
372 133 markom 
 
373 371 markom 
CONST int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
374 
 
375 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
376 
int
377 
insn_len(int insn_index)
378 133 markom 
{
379 
  insn_index = 0; /* Just to get rid that warning.  */
380 
  return 4;
381 
}
382 
 
383 
/* Is individual insn's operand signed or unsigned? */
384 138 markom 
int
385 
letter_signed(char l)
386 133 markom 
{
387 
  CONST struct or32_letter *pletter;
388 
 
389 
  for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
390 
    if (pletter->letter == l)
391 
      return pletter->sign;
392 
 
393 
  printf("letter_signed(%c): Unknown letter.\n", l);
394 
  return 0;
395 
}
396 
 
397 703 markom 
/* Simple cache for letter ranges */
398 
static int range_cache[256] = {0};
399 
 
400 133 markom 
/* Number of letters in the individual lettered operand. */
401 138 markom 
int
402 
letter_range(char l)
403 133 markom 
{
404 
  CONST struct or32_opcode *pinsn;
405 
  char *enc;
406 
  int range = 0;
407 703 markom 
 
408 
  /* Is value cached? */
409 1308 phoenix 
  if ((range = range_cache[(unsigned char)l])) return range;
410 133 markom 
 
411 138 markom 
  for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
412 
    {
413 
      if (strchr(pinsn->encoding,l))
414 
        {
415 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
416 
            if ((*enc == '0') && (*(enc+1) == 'x'))
417 
              enc += 2;
418 
            else if (*enc == l)
419 
              range++;
420 703 markom 
          return range_cache[(unsigned char)l] = range;
421 133 markom 
        }
422 
    }
423 703 markom 
 
424 133 markom 
  printf("\nABORT: letter_range(%c): Never used letter.\n", l);
425 
  exit(1);
426 
}
427 
 
428 
/* MM: Returns index of given instruction name.  */
429 138 markom 
int
430 
insn_index (char *insn)
431 
{
432 133 markom 
  int i, found = -1;
433 371 markom 
  for (i = 0; i < num_opcodes; i++)
434 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
435 
      {
436 
        found = i;
437 
        break;
438 
      }
439 133 markom 
  return found;
440 
}
441 
 
442 717 markom 
/* Returns name of the specified instruction index */
443 
CONST char *
444 
insn_name(int index)
445 138 markom 
{
446 371 markom 
  if (index >= 0 && index < num_opcodes)
447 133 markom 
    return or32_opcodes[index].name;
448 
  else
449 
    return "???";
450 
}
451 
 
452 717 markom 
void
453 
l_none()
454 138 markom 
{
455 133 markom 
}
456 
 
457 
/*** Finite automata for instruction decoding building code ***/
458 
 
459 
/* Find simbols in encoding.  */
460 706 markom 
unsigned long
461 133 markom 
insn_extract(param_ch, enc_initial)
462 
     char param_ch;
463 
     char *enc_initial;
464 
{
465 
  char *enc;
466 
  unsigned long ret = 0;
467 
  unsigned opc_pos = 32;
468 
  for (enc = enc_initial; *enc != '\0'; )
469 
    if ((*enc == '0') && (*(enc+1) == 'x'))
470 
      {
471 
        unsigned long tmp = strtol(enc+2, NULL, 16);
472 
        opc_pos -= 4;
473 138 markom 
        if (param_ch == '0' || param_ch == '1')
474 
          {
475 
            if (param_ch == '0')
476 
              tmp = 15 - tmp;
477 
            ret |= tmp << opc_pos;
478 
          }
479 133 markom 
        enc += 3;
480 
      }
481 138 markom 
    else
482 
      {
483 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
484 
          {
485 
            opc_pos--;
486 
            if (param_ch == *enc)
487 
              ret |= 1 << opc_pos;
488 
          }
489 
        enc++;
490 133 markom 
      }
491 
  return ret;
492 
}
493 
 
494 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
495 
#define MAX_OP_TABLE_SIZE (1200)
496 133 markom 
#define LEAF_FLAG         (0x80000000)
497 
#define MAX_LEN           (8)
498 
 
499 
#ifndef MIN
500 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
501 
#endif
502 
 
503 
unsigned long *automata;
504 
int nuncovered;
505 
int curpass = 0;
506 
 
507 138 markom 
/* MM: Struct that hold runtime build information about instructions.  */
508 
struct temp_insn_struct
509 
{
510 
  unsigned long insn;
511 
  unsigned long insn_mask;
512 
  int in_pass;
513 
} *ti;
514 
 
515 
struct insn_op_struct *op_data, **op_start;
516 
 
517 
/* Recursive utility function used to find best match and to build automata.  */
518 
 
519 
static unsigned long *
520 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
521 
{
522 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
523 
  unsigned long cur_mask = mask;
524 
  unsigned long *next;
525 
 
526 
  for (i = 0; i < num_opcodes; i++)
527 138 markom 
    if (ti[i].in_pass == pass)
528 
      {
529 
        cur_mask &= ti[i].insn_mask;
530 
        ninstr++;
531 
        last_match = i;
532 
      }
533 
 
534 344 markom 
  debug(8, "%08X %08X\n", mask, cur_mask);
535 138 markom 
  if (ninstr == 0)
536 
    return 0;
537 
  if (ninstr == 1)
538 
    {
539 
      /* Leaf holds instruction index. */
540 344 markom 
      debug(8, "%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
541 138 markom 
      *cur = LEAF_FLAG | last_match;
542 
      cur++;
543 
      nuncovered--;
544 
    } else {
545 
      /* Find longest match.  */
546 
      for (i = 0; i < 32; i++)
547 
        {
548 
          int len;
549 
          for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
550 
            {
551 
              unsigned long m = (1UL << ((unsigned long)len)) - 1;
552 344 markom 
              debug(9, " (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);
553 138 markom 
              if ((m & (cur_mask >> (unsigned)i)) == m)
554 
                {
555 
                  best_len = len;
556 
                  best_first = i;
557 344 markom 
                  debug(9, "!");
558 138 markom 
                }
559 
              else
560 
                break;
561 
            }
562 
        }
563 344 markom 
      debug(9, "\n");
564 138 markom 
      if (!best_len)
565 
        {
566 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
567 
          for (i = 0; i < num_opcodes; i++)
568 
            if (ti[i].in_pass == pass)
569 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
570 
 
571 
          fprintf (stderr, "\n");
572 
          exit (1);
573 
        }
574 344 markom 
      debug(8, "%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
575 138 markom 
      *cur = best_first;
576 
      cur++;
577 
      *cur = (1 << best_len) - 1;
578 
      cur++;
579 
      next = cur;
580 
      /* Allocate space for pointers.  */
581 
      cur += 1 << best_len;
582 
      cur_mask = (1 << (unsigned long)best_len) - 1;
583 
 
584 
      for (i = 0; i < (1 << (unsigned long)best_len); i++)
585 
        {
586 
          int j;
587 
          unsigned long *c;
588 
          curpass++;
589 
          for (j = 0; j < num_opcodes; j++)
590 
            if (ti[j].in_pass == pass
591 371 markom 
                && ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i
592 138 markom 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
593 
              ti[j].in_pass = curpass;
594 
 
595 344 markom 
          debug(9, "%08X %08X %i\n", mask, cur_mask, best_first);
596 138 markom 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
597 
          if (c)
598 
            {
599 344 markom 
              debug(8, "%i> #%X -> %u\n", next - automata, i, cur - automata);
600 138 markom 
              *next = cur - automata;
601 
              cur = c;
602 
            }
603 
          else
604 
            {
605 344 markom 
              debug(8, "%i> N/A\n", next - automata);
606 138 markom 
              *next = 0;
607 
            }
608 
          next++;
609 
        }
610 133 markom 
    }
611 138 markom 
  return cur;
612 
}
613 133 markom 
 
614 138 markom 
/* Returns number of nonzero bits. */
615 
static int
616 
num_ones (unsigned long value)
617 
{
618 
  int c = 0;
619 
  while (value)
620 
    {
621 
      if (value & 1)
622 
        c++;
623 
      value >>= 1;
624 133 markom 
    }
625 138 markom 
  return c;
626 
}
627 133 markom 
 
628 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
629 
   Parameters are stored in ti struct.  */
630 
 
631 
static struct insn_op_struct *
632 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
633 
{
634 
  char *args = opcode->args;
635 
  int i, type;
636 
 
637 
  i = 0;
638 
  type = 0;
639 262 markom 
  /* In case we don't have any parameters, we add dummy read from r0.  */
640 
  if (!(*args)) {
641 263 markom 
    cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
642 262 markom 
    cur->data = 0;
643 355 markom 
    debug(9, "#%08X %08X\n", cur->type, cur->data);
644 262 markom 
    cur++;
645 
    return cur;
646 
  }
647 
 
648 138 markom 
  while (*args != '\0')
649 
    {
650 
      if (*args == 'r')
651 
        {
652 
          args++;
653 
          type |= OPTYPE_REG;
654 133 markom 
        }
655 138 markom 
      else if (isalpha (*args))
656 
        {
657 
          unsigned long arg;
658 
          arg = insn_extract(*args, opcode->encoding);
659 355 markom 
          debug(9, "%s : %08X ------\n", opcode->name, arg);
660 138 markom 
          if (letter_signed (*args))
661 
            {
662 
              type |= OPTYPE_SIG;
663 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
664 
            }
665 
 
666 
          /* Split argument to sequences of consecutive ones.  */
667 
          while (arg)
668 
            {
669 
              int shr = 0;
670 
              unsigned long tmp = arg, mask = 0;
671 
              while ((tmp & 1) == 0)
672 
                {
673 
                  shr++;
674 
                  tmp >>= 1;
675 
                }
676 
              while (tmp & 1)
677 
                {
678 
                  mask++;
679 
                  tmp >>= 1;
680 
                }
681 
              cur->type = type | shr;
682 
              cur->data = mask;
683 
              arg &= ~(((1 << mask) - 1) << shr);
684 355 markom 
              debug(6, "|%08X %08X\n", cur->type, cur->data);
685 138 markom 
              cur++;
686 
            }
687 
          args++;
688 
        }
689 
      else if (*args == '(')
690 
        {
691 
          /* Next param is displacement.  Later we will treat them as one operand.  */
692 
          cur--;
693 
          cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP;
694 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
695 138 markom 
          cur++;
696 
          type = 0;
697 
          i++;
698 
          args++;
699 
        }
700 
      else if (*args == OPERAND_DELIM)
701 
        {
702 
          cur--;
703 
          cur->type = type | cur->type | OPTYPE_OP;
704 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
705 138 markom 
          cur++;
706 
          type = 0;
707 
          i++;
708 
          args++;
709 
        }
710 
      else if (*args == '0')
711 
        {
712 
          cur->type = type;
713 
          cur->data = 0;
714 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
715 138 markom 
          cur++;
716 
          type = 0;
717 
          i++;
718 
          args++;
719 
        }
720 
      else if (*args == ')')
721 
        args++;
722 
      else
723 
        {
724 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
725 
          exit (1);
726 
        }
727 133 markom 
    }
728 138 markom 
  cur--;
729 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
730 355 markom 
  debug(9, "#%08X %08X\n", cur->type, cur->data);
731 138 markom 
  cur++;
732 133 markom 
  return cur;
733 
}
734 
 
735 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
736 
 
737 
void
738 
build_automata()
739 
{
740 371 markom 
  int i;
741 133 markom 
  unsigned long *end;
742 138 markom 
  struct insn_op_struct *cur;
743 
 
744 133 markom 
  automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
745 138 markom 
  ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
746 133 markom 
 
747 
  nuncovered = num_opcodes;
748 709 markom 
 
749 
#ifdef HAS_EXECUTION
750 138 markom 
  printf("Building automata... ");
751 709 markom 
#endif
752 
 
753 133 markom 
  /* Build temporary information about instructions.  */
754 138 markom 
  for (i = 0; i < num_opcodes; i++)
755 
    {
756 
      unsigned long ones, zeros;
757 
      char *encoding = or32_opcodes[i].encoding;
758 
      ones  = insn_extract('1', encoding);
759 
      zeros = insn_extract('0', encoding);
760 
      ti[i].insn_mask = ones | zeros;
761 
      ti[i].insn = ones;
762 
      ti[i].in_pass = curpass = 0;
763 344 markom 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
764 138 markom 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
765 
    }
766 133 markom 
 
767 
  /* Until all are covered search for best criteria to separate them.  */
768 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
769 
  if (end - automata > MAX_AUTOMATA_SIZE)
770 
    {
771 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
772 
      exit (1);
773 
    }
774 709 markom 
#ifdef HAS_EXECUTION
775 138 markom 
  printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
776 709 markom 
#endif
777 371 markom 
 
778 709 markom 
#ifdef HAS_EXECUTION
779 138 markom 
  printf("Parsing operands data... ");
780 709 markom 
#endif
781 138 markom 
  op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
782 
  op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
783 
  cur = op_data;
784 
  for (i = 0; i < num_opcodes; i++)
785 
    {
786 
      op_start[i] = cur;
787 
      cur = parse_params (&or32_opcodes[i], cur);
788 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
789 
        {
790 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
791 
          exit (1);
792 
        }
793 
    }
794 709 markom 
#ifdef HAS_EXECUTION
795 138 markom 
  printf("done.\n");
796 709 markom 
#endif
797 133 markom 
}
798 
 
799 138 markom 
void destruct_automata ()
800 
{
801 
  free (ti);
802 133 markom 
  free (automata);
803 138 markom 
  free (op_data);
804 
  free (op_start);
805 133 markom 
}
806 
 
807 
/* Decodes instruction and returns instruction index.  */
808 138 markom 
int insn_decode (unsigned int insn)
809 
{
810 133 markom 
  unsigned long *a = automata;
811 138 markom 
  int i;
812 
  while (!(*a & LEAF_FLAG))
813 
    {
814 
      unsigned int first = *a;
815 703 markom 
      //debug(9, "%i ", a - automata);
816 138 markom 
      a++;
817 
      i = (insn >> first) & *a;
818 
      a++;
819 
      if (!*(a + i))
820 
        { /* Invalid instruction found?  */
821 703 markom 
          //debug(9, "XXX\n", i);
822 138 markom 
          return -1;
823 
        }
824 
      a = automata + *(a + i);
825 
    }
826 
  i = *a & ~LEAF_FLAG;
827 703 markom 
  //debug(9, "%i\n", i);
828 138 markom 
  /* Final check - do we have direct match?
829 
     (based on or32_opcodes this should be the only possibility,
830 
     but in case of invalid/missing instruction we must perform a check)  */
831 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
832 
    return i;
833 
  else
834 
    return -1;
835 133 markom 
}
836 371 markom 
 
837 
static char disassembled_str[50];
838 
char *disassembled = &disassembled_str[0];
839 
 
840 
/* Automagically does zero- or sign- extension and also finds correct
841 
   sign bit position if sign extension is correct extension. Which extension
842 
   is proper is figured out from letter description. */
843 
 
844 879 markom 
unsigned long
845 371 markom 
extend_imm(unsigned long imm, char l)
846 
{
847 
  unsigned long mask;
848 
  int letter_bits;
849 
 
850 
  /* First truncate all bits above valid range for this letter
851 
     in case it is zero extend. */
852 
  letter_bits = letter_range(l);
853 
  mask = (1 << letter_bits) - 1;
854 
  imm &= mask;
855 
 
856 
  /* Do sign extend if this is the right one. */
857 
  if (letter_signed(l) && (imm >> (letter_bits - 1)))
858 
    imm |= (~mask);
859 
 
860 
  return imm;
861 
}
862 
 
863 879 markom 
unsigned long
864 371 markom 
or32_extract(param_ch, enc_initial, insn)
865 
     char param_ch;
866 
     char *enc_initial;
867 
     unsigned long insn;
868 
{
869 
  char *enc;
870 
  unsigned long ret = 0;
871 
  int opc_pos = 0;
872 
  int param_pos = 0;
873 
 
874 
  for (enc = enc_initial; *enc != '\0'; enc++)
875 
    if (*enc == param_ch)
876 
      {
877 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
878 
          continue;
879 
        else
880 
          param_pos++;
881 
      }
882 
 
883 
#if DEBUG
884 
  printf("or32_extract: %x ", param_pos);
885 
#endif
886 
  opc_pos = 32;
887 
  for (enc = enc_initial; *enc != '\0'; )
888 
    if ((*enc == '0') && (*(enc+1) == 'x'))
889 
      {
890 
        opc_pos -= 4;
891 
        if ((param_ch == '0') || (param_ch == '1'))
892 
          {
893 
            unsigned long tmp = strtol(enc, NULL, 16);
894 
#if DEBUG
895 
            printf(" enc=%s, tmp=%x ", enc, tmp);
896 
#endif
897 
            if (param_ch == '0')
898 
              tmp = 15 - tmp;
899 
            ret |= tmp << opc_pos;
900 
          }
901 
        enc += 3;
902 
      }
903 
    else if ((*enc == '0') || (*enc == '1'))
904 
      {
905 
        opc_pos--;
906 
        if (param_ch == *enc)
907 
          ret |= 1 << opc_pos;
908 
        enc++;
909 
      }
910 
    else if (*enc == param_ch)
911 
      {
912 
        opc_pos--;
913 
        param_pos--;
914 
#if DEBUG
915 
        printf("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
916 
#endif
917 
        if (islower(param_ch))
918 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
919 
        else
920 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
921 
        enc++;
922 
      }
923 
    else if (isalpha(*enc))
924 
      {
925 
        opc_pos--;
926 
        enc++;
927 
      }
928 
    else if (*enc == '-')
929 
      {
930 
        opc_pos--;
931 
        enc++;
932 
      }
933 
    else
934 
      enc++;
935 
 
936 
#if DEBUG
937 
  printf ("ret=%x\n", ret);
938 
#endif
939 
  return ret;
940 
}
941 
 
942 
/* Print register. Used only by print_insn. */
943 
 
944 703 markom 
static char *
945 
or32_print_register (dest, param_ch, encoding, insn)
946 
     char *dest;
947 371 markom 
     char param_ch;
948 
     char *encoding;
949 
     unsigned long insn;
950 
{
951 
  int regnum = or32_extract(param_ch, encoding, insn);
952 
 
953 703 markom 
  sprintf (dest, "r%d", regnum);
954 
  while (*dest) dest++;
955 
  return dest;
956 371 markom 
}
957 
 
958 
/* Print immediate. Used only by print_insn. */
959 
 
960 703 markom 
static char *
961 
or32_print_immediate (dest, param_ch, encoding, insn)
962 
     char *dest;
963 371 markom 
     char param_ch;
964 
     char *encoding;
965 
     unsigned long insn;
966 
{
967 
  int imm = or32_extract (param_ch, encoding, insn);
968 
 
969 
  imm = extend_imm(imm, param_ch);
970 
 
971 
  if (letter_signed(param_ch))
972 
    {
973 
      if (imm < 0)
974 703 markom 
        sprintf (dest, "%d", imm);
975 371 markom 
      else
976 703 markom 
        sprintf (dest, "0x%x", imm);
977 371 markom 
    }
978 
  else
979 703 markom 
    sprintf (dest, "%#x", imm);
980 
  while (*dest) dest++;
981 
  return dest;
982 371 markom 
}
983 
 
984 
/* Disassemble one instruction from insn to disassemble.
985 
   Return the size of the instruction.  */
986 
 
987 
int
988 
disassemble_insn (insn)
989 
     unsigned long insn;
990 
{
991 703 markom 
  return disassemble_index (insn, insn_decode (insn));
992 
}
993 371 markom 
 
994 703 markom 
/* Disassemble one instruction from insn index.
995 
   Return the size of the instruction.  */
996 
 
997 
int
998 
disassemble_index (insn, index)
999 
     unsigned long insn;
1000 
     int index;
1001 
{
1002 
  char *dest = disassembled;
1003 371 markom 
  if (index >= 0)
1004 
    {
1005 
      struct or32_opcode const *opcode = &or32_opcodes[index];
1006 
      char *s;
1007 
 
1008 703 markom 
      strcpy (dest, opcode->name);
1009 
      while (*dest) dest++;
1010 
      *dest++ = ' ';
1011 
      *dest = 0;
1012 
 
1013 371 markom 
      for (s = opcode->args; *s != '\0'; ++s)
1014 
        {
1015 
          switch (*s)
1016 
            {
1017 
            case '\0':
1018 703 markom 
              return insn_len (insn);
1019 714 markom 
 
1020 371 markom 
            case 'r':
1021 703 markom 
              dest = or32_print_register(dest, *++s, opcode->encoding, insn);
1022 371 markom 
              break;
1023 714 markom 
 
1024 371 markom 
            default:
1025 
              if (strchr (opcode->encoding, *s))
1026 703 markom 
                dest = or32_print_immediate (dest, *s, opcode->encoding, insn);
1027 
              else {
1028 
                *dest++ = *s;
1029 
                *dest = 0;
1030 
              }
1031 371 markom 
            }
1032 
        }
1033 
    }
1034 
  else
1035 
    {
1036 
      /* This used to be %8x for binutils.  */
1037 1308 phoenix 
      sprintf(dest, ".word 0x%08lx", insn);
1038 703 markom 
      while (*dest) dest++;
1039 371 markom 
    }
1040 
  return insn_len (insn);
1041 
}

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