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[/] [or1k/] [branches/] [stable_0_2_x/] [gen_or1k_isa/] [sources/] [opcode/] [or32.c] - Blame information for rev 1338

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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 1338 andreje 
 * Revision 1.36  2004/07/22 20:17:23  phoenix
24 
 * removed includes
25 
 *
26 1309 phoenix 
 * Revision 1.35  2004/07/19 23:07:37  phoenix
27 
 * Gyorgy Jeney: extensive cleanup
28 
 *
29 1308 phoenix 
 * Revision 1.34  2004/06/27 22:56:48  lampret
30 
 * Updated instruction set descriptions. Changed FP instructions encoding.
31 
 *
32 1295 lampret 
 * Revision 1.33  2004/05/09 19:52:31  lampret
33 
 * Changed desciption of the l.cust5 insns
34 
 *
35 1285 lampret 
 * Revision 1.31  2003/07/01 19:34:49  csanchez
36 
 * Added support for l.addc instruction.
37 
 *
38 1169 csanchez 
 * Revision 1.30  2003/01/28 03:49:24  lampret
39 
 * Added cvs log keywords
40 
 *
41 1114 lampret 
 */
42 
 
43 133 markom 
/* We treat all letters the same in encode/decode routines so
44 
   we need to assign some characteristics to them like signess etc.*/
45 
#include <string.h>
46 
#include <stdio.h>
47 
#include <stdlib.h>
48 371 markom 
#include <ctype.h>
49 133 markom 
 
50 371 markom 
 
51 138 markom 
#ifdef HAVE_CONFIG_H
52 
# include "config.h"
53 
#endif
54 133 markom 
#include "opcode/or32.h"
55 
 
56 
/* **INDENT-OFF** */
57 
 
58 
CONST struct or32_letter or32_letters[] =
59 
{
60 
{ 'A', NUM_UNSIGNED },
61 
{ 'B', NUM_UNSIGNED },
62 
{ 'D', NUM_UNSIGNED },
63 
{ 'I', NUM_SIGNED },
64 
{ 'K', NUM_UNSIGNED },
65 
{ 'L', NUM_UNSIGNED },
66 
{ 'N', NUM_SIGNED },
67 
{ '0', NUM_UNSIGNED },
68 
{ '\0', 0 }     /* dummy entry */
69 
};
70 
 
71 
/* Opcode encoding:
72 
   machine[31:30]: first two bits of opcode
73 
                   00 - neither of source operands is GPR
74 
                   01 - second source operand is GPR (rB)
75 
                   10 - first source operand is GPR (rA)
76 
                   11 - both source operands are GPRs (rA and rB)
77 
   machine[29:26]: next four bits of opcode
78 
   machine[25:00]: instruction operands (specific to individual instruction)
79 
 
80 
  Recommendation: irrelevant instruction bits should be set with a value of
81 
  bits in same positions of instruction preceding current instruction in the
82 
  code (when assembling).
83 
*/
84 
 
85 706 markom 
#if defined HAS_EXECUTION && SIMPLE_EXECUTION
86 133 markom 
#define EFN &l_none
87 
#define EF(func) &(func)
88 
#define EFI &l_invalid
89 
#else  /* HAS_EXECUTION */
90 706 markom 
 
91 
#ifndef HAS_EXECUTION
92 
#define EFN &l_none
93 133 markom 
#define EF(func) EFN
94 
#define EFI EFN
95 706 markom 
#else  /* !HAS_EXECUTION */
96 
#define EFN "l_none"
97 
#define EFI "l_invalid"
98 
#ifdef __GNUC__
99 
#define EF(func) #func
100 
#else
101 
#define EF(func) "func"
102 
#endif
103 
#endif /* !HAS_EXECUTION */
104 
 
105 133 markom 
#endif /* HAS_EXECUTION */
106 
 
107 
CONST struct or32_opcode or32_opcodes[] =
108 
{
109 
 
110 
{ "l.j",       "N",            "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY },
111 
{ "l.jal",     "N",            "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY },
112 138 markom 
{ "l.bnf",     "N",            "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG},
113 
{ "l.bf",      "N",            "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG },
114 676 markom 
{ "l.nop",     "K",            "00 0x5  01--- ----- KKKK KKKK KKKK KKKK", EF(l_nop), 0 },
115 133 markom 
{ "l.movhi",   "rD,K",         "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/
116 
{ "l.macrc",   "rD",           "00 0x6  DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/
117 676 markom 
 
118 133 markom 
{ "l.sys",     "K",            "00 0x8  00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 },
119 144 chris 
{ "l.trap",    "K",            "00 0x8  01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0 }, /* CZ 21/06/01 */
120 133 markom 
{ "l.msync",   "",             "00 0x8  10000 00000 0000 0000 0000 0000", EFN, 0 },
121 
{ "l.psync",   "",             "00 0x8  10100 00000 0000 0000 0000 0000", EFN, 0 },
122 
{ "l.csync",   "",             "00 0x8  11000 00000 0000 0000 0000 0000", EFN, 0 },
123 
{ "l.rfe",     "",             "00 0x9  ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY },
124 
 
125 
{ "lv.all_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
126 
{ "lv.all_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
127 
{ "lv.all_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
128 
{ "lv.all_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
129 
{ "lv.all_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
130 
{ "lv.all_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
131 
{ "lv.all_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
132 
{ "lv.all_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
133 
{ "lv.all_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
134 
{ "lv.all_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
135 
{ "lv.all_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
136 
{ "lv.all_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
137 
{ "lv.any_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 },
138 
{ "lv.any_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 },
139 
{ "lv.any_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 },
140 
{ "lv.any_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 },
141 
{ "lv.any_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 },
142 
{ "lv.any_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 },
143 
{ "lv.any_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 },
144 
{ "lv.any_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 },
145 
{ "lv.any_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 },
146 
{ "lv.any_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 },
147 
{ "lv.any_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 },
148 
{ "lv.any_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 },
149 
{ "lv.add.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 },
150 
{ "lv.add.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 },
151 
{ "lv.adds.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 },
152 
{ "lv.adds.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 },
153 
{ "lv.addu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 },
154 
{ "lv.addu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 },
155 
{ "lv.addus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 },
156 
{ "lv.addus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 },
157 
{ "lv.and",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 },
158 
{ "lv.avg.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 },
159 
{ "lv.avg.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 },
160 
{ "lv.cmp_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 },
161 
{ "lv.cmp_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 },
162 
{ "lv.cmp_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 },
163 
{ "lv.cmp_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 },
164 
{ "lv.cmp_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 },
165 
{ "lv.cmp_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 },
166 
{ "lv.cmp_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 },
167 
{ "lv.cmp_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 },
168 
{ "lv.cmp_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 },
169 
{ "lv.cmp_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 },
170 
{ "lv.cmp_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 },
171 
{ "lv.cmp_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 },
172 
{ "lv.madds.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 },
173 
{ "lv.max.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 },
174 
{ "lv.max.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 },
175 
{ "lv.merge.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 },
176 
{ "lv.merge.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 },
177 
{ "lv.min.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 },
178 
{ "lv.min.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 },
179 
{ "lv.msubs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 },
180 
{ "lv.muls.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 },
181 
{ "lv.nand",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 },
182 
{ "lv.nor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 },
183 
{ "lv.or",     "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 },
184 
{ "lv.pack.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 },
185 
{ "lv.pack.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 },
186 
{ "lv.packs.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 },
187 
{ "lv.packs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 },
188 
{ "lv.packus.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 },
189 
{ "lv.packus.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 },
190 
{ "lv.perm.n", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 },
191 
{ "lv.rl.b",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 },
192 
{ "lv.rl.h",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 },
193 
{ "lv.sll.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 },
194 
{ "lv.sll.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 },
195 
{ "lv.sll",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 },
196 
{ "lv.srl.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 },
197 
{ "lv.srl.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 },
198 
{ "lv.sra.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 },
199 
{ "lv.sra.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 },
200 
{ "lv.srl",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 },
201 
{ "lv.sub.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 },
202 
{ "lv.sub.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 },
203 
{ "lv.subs.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 },
204 
{ "lv.subs.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 },
205 
{ "lv.subu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 },
206 
{ "lv.subu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 },
207 
{ "lv.subus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 },
208 
{ "lv.subus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 },
209 
{ "lv.unpack.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 },
210 
{ "lv.unpack.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 },
211 
{ "lv.xor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 },
212 
{ "lv.cust1",  "",             "00 0xA  ----- ----- ---- ---- 0xC ----", EFI, 0 },
213 
{ "lv.cust2",  "",             "00 0xA  ----- ----- ---- ---- 0xD ----", EFI, 0 },
214 
{ "lv.cust3",  "",             "00 0xA  ----- ----- ---- ---- 0xE ----", EFI, 0 },
215 
{ "lv.cust4",  "",             "00 0xA  ----- ----- ---- ---- 0xF ----", EFI, 0 },
216 
 
217 
{ "l.jr",      "rB",           "01 0x1  ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY },
218 
{ "l.jalr",    "rB",           "01 0x2  ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY },
219 676 markom 
{ "l.maci",    "rB,I",         "01 0x3  IIIII ----- BBBB BIII IIII IIII", EF(l_mac), 0 },
220 174 markom 
{ "l.cust1",   "",             "01 0xC  ----- ----- ---- ---- ---- ----", EF(l_cust1), 0 },
221 
{ "l.cust2",   "",             "01 0xD  ----- ----- ---- ---- ---- ----", EF(l_cust2), 0 },
222 
{ "l.cust3",   "",             "01 0xE  ----- ----- ---- ---- ---- ----", EF(l_cust3), 0 },
223 
{ "l.cust4",   "",             "01 0xF  ----- ----- ---- ---- ---- ----", EF(l_cust4), 0 },
224 133 markom 
 
225 
{ "l.ld",      "rD,I(rA)",     "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
226 
{ "l.lwz",     "rD,I(rA)",     "10 0x1  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 },
227 
{ "l.lws",     "rD,I(rA)",     "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
228 
{ "l.lbz",     "rD,I(rA)",     "10 0x3  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 },
229 
{ "l.lbs",     "rD,I(rA)",     "10 0x4  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 },
230 
{ "l.lhz",     "rD,I(rA)",     "10 0x5  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 },
231 
{ "l.lhs",     "rD,I(rA)",     "10 0x6  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 },
232 
 
233 676 markom 
{ "l.addi",    "rD,rA,I",      "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), OR32_W_FLAG },
234 133 markom 
{ "l.addic",   "rD,rA,I",      "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
235 676 markom 
{ "l.andi",    "rD,rA,K",      "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), OR32_W_FLAG },
236 133 markom 
{ "l.ori",     "rD,rA,K",      "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0  },
237 
{ "l.xori",    "rD,rA,I",      "10 0xB  DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 },
238 801 markom 
{ "l.muli",    "rD,rA,I",      "10 0xC  DDDDD AAAAA IIII IIII IIII IIII", EF(l_mul), 0 },
239 676 markom 
{ "l.mfspr",   "rD,rA,K",      "10 0xD  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 },
240 133 markom 
{ "l.slli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 },
241 
{ "l.srli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 },
242 
{ "l.srai",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 },
243 
{ "l.rori",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 },
244 
 
245 138 markom 
{ "l.sfeqi",   "rA,I",         "10 0xF  00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG },
246 
{ "l.sfnei",   "rA,I",         "10 0xF  00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG },
247 
{ "l.sfgtui",  "rA,I",         "10 0xF  00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG },
248 
{ "l.sfgeui",  "rA,I",         "10 0xF  00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG },
249 
{ "l.sfltui",  "rA,I",         "10 0xF  00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG },
250 
{ "l.sfleui",  "rA,I",         "10 0xF  00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG },
251 
{ "l.sfgtsi",  "rA,I",         "10 0xF  01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG },
252 
{ "l.sfgesi",  "rA,I",         "10 0xF  01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG },
253 
{ "l.sfltsi",  "rA,I",         "10 0xF  01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG },
254 
{ "l.sflesi",  "rA,I",         "10 0xF  01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG },
255 133 markom 
 
256 676 markom 
{ "l.mtspr",   "rA,rB,K",      "11 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
257 
{ "l.mac",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x1", EF(l_mac), 0 }, /*MM*/
258 
{ "l.msb",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x2", EF(l_msb), 0 }, /*MM*/
259 
 
260 1295 lampret 
{ "lf.add.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x0", EF(lf_add_s), 0 },
261 
{ "lf.sub.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x1", EF(lf_sub_s), 0 },
262 
{ "lf.mul.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x2", EF(lf_mul_s), 0 },
263 
{ "lf.div.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x3", EF(lf_div_s), 0 },
264 
{ "lf.itof.s",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x4", EF(lf_itof_s), 0 },
265 
{ "lf.ftoi.s",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x5", EF(lf_ftoi_s), 0 },
266 
{ "lf.rem.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x6", EF(lf_rem_s), 0 },
267 
{ "lf.madd.s",  "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x7", EF(lf_madd_s), 0 },
268 
{ "lf.sfeq.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0x8", EF(lf_sfeq_s), 0 },
269 
{ "lf.sfne.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0x9", EF(lf_sfne_s), 0 },
270 
{ "lf.sfgt.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xA", EF(lf_sfgt_s), 0 },
271 
{ "lf.sfge.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xB", EF(lf_sfge_s), 0 },
272 
{ "lf.sflt.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xC", EF(lf_sflt_s), 0 },
273 
{ "lf.sfle.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xD", EF(lf_sfle_s), 0 },
274 
{ "lf.cust1.s", "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0xD ----", EFI, 0 },
275 
 
276 
{ "lf.add.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
277 
{ "lf.sub.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
278 
{ "lf.mul.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
279 
{ "lf.div.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
280 
{ "lf.itof.d",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x4", EFI, 0 },
281 
{ "lf.ftoi.d",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x5", EFI, 0 },
282 
{ "lf.rem.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
283 
{ "lf.madd.d",  "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
284 
{ "lf.sfeq.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
285 
{ "lf.sfne.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
286 
{ "lf.sfgt.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
287 
{ "lf.sfge.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
288 
{ "lf.sflt.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
289 
{ "lf.sfle.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
290 
{ "lf.cust1.d", "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0xE ----", EFI, 0 },
291 
 
292 133 markom 
{ "l.sd",      "I(rA),rB",     "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 },
293 
{ "l.sw",      "I(rA),rB",     "11 0x5  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 },
294 
{ "l.sb",      "I(rA),rB",     "11 0x6  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 },
295 
{ "l.sh",      "I(rA),rB",     "11 0x7  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
296 
 
297 676 markom 
{ "l.add",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), OR32_W_FLAG },
298 1169 csanchez 
{ "l.addc",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1", EF(l_addc), OR32_W_FLAG },
299 133 markom 
{ "l.sub",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 },
300 676 markom 
{ "l.and",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), OR32_W_FLAG },
301 133 markom 
{ "l.or",      "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 },
302 
{ "l.xor",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 },
303 
{ "l.mul",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 },
304 676 markom 
 
305 133 markom 
{ "l.sll",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 },
306 
{ "l.srl",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 },
307 
{ "l.sra",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 },
308 
{ "l.ror",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 },
309 1034 lampret 
{ "l.div",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x9", EF(l_div), 0 },
310 
{ "l.divu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xA", EF(l_divu), 0 },
311 133 markom 
{ "l.mulu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 },
312 1295 lampret 
{ "l.extbs",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xC", EF(l_extbs), 0 },
313 
{ "l.exths",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xC", EF(l_exths), 0 },
314 
{ "l.extws",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xD", EF(l_extws), 0 },
315 
{ "l.extbz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 11-- 0xC", EF(l_extbz), 0 },
316 
{ "l.exthz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 10-- 0xC", EF(l_exthz), 0 },
317 
{ "l.extwz",   "rD,rA",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xD", EF(l_extwz), 0 },
318 676 markom 
{ "l.cmov",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE", EF(l_cmov), OR32_R_FLAG },
319 1338 andreje 
{ "l.ff1",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xF", EF(l_ff1), 0 },
320 
 
321 138 markom 
{ "l.sfeq",    "rA,rB",        "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG },
322 
{ "l.sfne",    "rA,rB",        "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG },
323 
{ "l.sfgtu",   "rA,rB",        "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG },
324 
{ "l.sfgeu",   "rA,rB",        "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG },
325 
{ "l.sfltu",   "rA,rB",        "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG },
326 
{ "l.sfleu",   "rA,rB",        "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG },
327 
{ "l.sfgts",   "rA,rB",        "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG },
328 
{ "l.sfges",   "rA,rB",        "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG },
329 
{ "l.sflts",   "rA,rB",        "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG },
330 
{ "l.sfles",   "rA,rB",        "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
331 133 markom 
 
332 1285 lampret 
{ "l.cust5",   "rD,rA,rB,L,K", "11 0xC  DDDDD AAAAA BBBB BLLL LLLK KKKK", EFI, 0 },
333 133 markom 
{ "l.cust6",   "",             "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
334 
{ "l.cust7",   "",             "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
335 
{ "l.cust8",   "",             "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
336 
 
337 221 markom 
/* This section should not be defined in or1ksim, since it contains duplicates,
338 
   which would cause machine builder to complain.  */
339 374 simons 
#ifdef HAS_CUST
340 221 markom 
{ "l.cust5_1",   "rD",         "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
341 
{ "l.cust5_2",   "rD,rA"   ,   "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
342 
{ "l.cust5_3",   "rD,rA,rB",   "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
343 
 
344 
{ "l.cust6_1",   "rD",         "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
345 
{ "l.cust6_2",   "rD,rA"   ,   "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
346 
{ "l.cust6_3",   "rD,rA,rB",   "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
347 
 
348 
{ "l.cust7_1",   "rD",         "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
349 
{ "l.cust7_2",   "rD,rA"   ,   "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
350 
{ "l.cust7_3",   "rD,rA,rB",   "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
351 
 
352 
{ "l.cust8_1",   "rD",         "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
353 
{ "l.cust8_2",   "rD,rA"   ,   "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
354 
{ "l.cust8_3",   "rD,rA,rB",   "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
355 
#endif
356 
 
357 133 markom 
{ "", "", "", EFI, 0 }           /* Dummy entry, not included in num_opcodes.  This
358 
                           lets code examine entry i+1 without checking
359 
                           if we've run off the end of the table.  */
360 
};
361 
 
362 
#undef EFI
363 
#undef EFN
364 
#undef EF
365 
 
366 
/* **INDENT-ON** */
367 
 
368 371 markom 
/* Define dummy, if debug is not defined.  */
369 
#if !defined HAS_DEBUG
370 
void debug(int level, const char *format, ...)
371 
{
372 
  /* Just to get rid of warnings.  */
373 
  format = level = 0;
374 
}
375 
#endif
376 133 markom 
 
377 371 markom 
CONST int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
378 
 
379 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
380 
int
381 
insn_len(int insn_index)
382 133 markom 
{
383 
  insn_index = 0; /* Just to get rid that warning.  */
384 
  return 4;
385 
}
386 
 
387 
/* Is individual insn's operand signed or unsigned? */
388 138 markom 
int
389 
letter_signed(char l)
390 133 markom 
{
391 
  CONST struct or32_letter *pletter;
392 
 
393 
  for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
394 
    if (pletter->letter == l)
395 
      return pletter->sign;
396 
 
397 
  printf("letter_signed(%c): Unknown letter.\n", l);
398 
  return 0;
399 
}
400 
 
401 703 markom 
/* Simple cache for letter ranges */
402 
static int range_cache[256] = {0};
403 
 
404 133 markom 
/* Number of letters in the individual lettered operand. */
405 138 markom 
int
406 
letter_range(char l)
407 133 markom 
{
408 
  CONST struct or32_opcode *pinsn;
409 
  char *enc;
410 
  int range = 0;
411 703 markom 
 
412 
  /* Is value cached? */
413 1308 phoenix 
  if ((range = range_cache[(unsigned char)l])) return range;
414 133 markom 
 
415 138 markom 
  for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
416 
    {
417 
      if (strchr(pinsn->encoding,l))
418 
        {
419 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
420 
            if ((*enc == '0') && (*(enc+1) == 'x'))
421 
              enc += 2;
422 
            else if (*enc == l)
423 
              range++;
424 703 markom 
          return range_cache[(unsigned char)l] = range;
425 133 markom 
        }
426 
    }
427 703 markom 
 
428 133 markom 
  printf("\nABORT: letter_range(%c): Never used letter.\n", l);
429 
  exit(1);
430 
}
431 
 
432 
/* MM: Returns index of given instruction name.  */
433 138 markom 
int
434 
insn_index (char *insn)
435 
{
436 133 markom 
  int i, found = -1;
437 371 markom 
  for (i = 0; i < num_opcodes; i++)
438 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
439 
      {
440 
        found = i;
441 
        break;
442 
      }
443 133 markom 
  return found;
444 
}
445 
 
446 717 markom 
/* Returns name of the specified instruction index */
447 
CONST char *
448 
insn_name(int index)
449 138 markom 
{
450 371 markom 
  if (index >= 0 && index < num_opcodes)
451 133 markom 
    return or32_opcodes[index].name;
452 
  else
453 
    return "???";
454 
}
455 
 
456 717 markom 
void
457 
l_none()
458 138 markom 
{
459 133 markom 
}
460 
 
461 
/*** Finite automata for instruction decoding building code ***/
462 
 
463 
/* Find simbols in encoding.  */
464 706 markom 
unsigned long
465 133 markom 
insn_extract(param_ch, enc_initial)
466 
     char param_ch;
467 
     char *enc_initial;
468 
{
469 
  char *enc;
470 
  unsigned long ret = 0;
471 
  unsigned opc_pos = 32;
472 
  for (enc = enc_initial; *enc != '\0'; )
473 
    if ((*enc == '0') && (*(enc+1) == 'x'))
474 
      {
475 
        unsigned long tmp = strtol(enc+2, NULL, 16);
476 
        opc_pos -= 4;
477 138 markom 
        if (param_ch == '0' || param_ch == '1')
478 
          {
479 
            if (param_ch == '0')
480 
              tmp = 15 - tmp;
481 
            ret |= tmp << opc_pos;
482 
          }
483 133 markom 
        enc += 3;
484 
      }
485 138 markom 
    else
486 
      {
487 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
488 
          {
489 
            opc_pos--;
490 
            if (param_ch == *enc)
491 
              ret |= 1 << opc_pos;
492 
          }
493 
        enc++;
494 133 markom 
      }
495 
  return ret;
496 
}
497 
 
498 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
499 
#define MAX_OP_TABLE_SIZE (1200)
500 133 markom 
#define LEAF_FLAG         (0x80000000)
501 
#define MAX_LEN           (8)
502 
 
503 
#ifndef MIN
504 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
505 
#endif
506 
 
507 
unsigned long *automata;
508 
int nuncovered;
509 
int curpass = 0;
510 
 
511 138 markom 
/* MM: Struct that hold runtime build information about instructions.  */
512 
struct temp_insn_struct
513 
{
514 
  unsigned long insn;
515 
  unsigned long insn_mask;
516 
  int in_pass;
517 
} *ti;
518 
 
519 
struct insn_op_struct *op_data, **op_start;
520 
 
521 
/* Recursive utility function used to find best match and to build automata.  */
522 
 
523 
static unsigned long *
524 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
525 
{
526 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
527 
  unsigned long cur_mask = mask;
528 
  unsigned long *next;
529 
 
530 
  for (i = 0; i < num_opcodes; i++)
531 138 markom 
    if (ti[i].in_pass == pass)
532 
      {
533 
        cur_mask &= ti[i].insn_mask;
534 
        ninstr++;
535 
        last_match = i;
536 
      }
537 
 
538 344 markom 
  debug(8, "%08X %08X\n", mask, cur_mask);
539 138 markom 
  if (ninstr == 0)
540 
    return 0;
541 
  if (ninstr == 1)
542 
    {
543 
      /* Leaf holds instruction index. */
544 344 markom 
      debug(8, "%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
545 138 markom 
      *cur = LEAF_FLAG | last_match;
546 
      cur++;
547 
      nuncovered--;
548 
    } else {
549 
      /* Find longest match.  */
550 
      for (i = 0; i < 32; i++)
551 
        {
552 
          int len;
553 
          for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
554 
            {
555 
              unsigned long m = (1UL << ((unsigned long)len)) - 1;
556 344 markom 
              debug(9, " (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);
557 138 markom 
              if ((m & (cur_mask >> (unsigned)i)) == m)
558 
                {
559 
                  best_len = len;
560 
                  best_first = i;
561 344 markom 
                  debug(9, "!");
562 138 markom 
                }
563 
              else
564 
                break;
565 
            }
566 
        }
567 344 markom 
      debug(9, "\n");
568 138 markom 
      if (!best_len)
569 
        {
570 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
571 
          for (i = 0; i < num_opcodes; i++)
572 
            if (ti[i].in_pass == pass)
573 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
574 
 
575 
          fprintf (stderr, "\n");
576 
          exit (1);
577 
        }
578 344 markom 
      debug(8, "%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
579 138 markom 
      *cur = best_first;
580 
      cur++;
581 
      *cur = (1 << best_len) - 1;
582 
      cur++;
583 
      next = cur;
584 
      /* Allocate space for pointers.  */
585 
      cur += 1 << best_len;
586 
      cur_mask = (1 << (unsigned long)best_len) - 1;
587 
 
588 
      for (i = 0; i < (1 << (unsigned long)best_len); i++)
589 
        {
590 
          int j;
591 
          unsigned long *c;
592 
          curpass++;
593 
          for (j = 0; j < num_opcodes; j++)
594 
            if (ti[j].in_pass == pass
595 371 markom 
                && ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i
596 138 markom 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
597 
              ti[j].in_pass = curpass;
598 
 
599 344 markom 
          debug(9, "%08X %08X %i\n", mask, cur_mask, best_first);
600 138 markom 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
601 
          if (c)
602 
            {
603 344 markom 
              debug(8, "%i> #%X -> %u\n", next - automata, i, cur - automata);
604 138 markom 
              *next = cur - automata;
605 
              cur = c;
606 
            }
607 
          else
608 
            {
609 344 markom 
              debug(8, "%i> N/A\n", next - automata);
610 138 markom 
              *next = 0;
611 
            }
612 
          next++;
613 
        }
614 133 markom 
    }
615 138 markom 
  return cur;
616 
}
617 133 markom 
 
618 138 markom 
/* Returns number of nonzero bits. */
619 
static int
620 
num_ones (unsigned long value)
621 
{
622 
  int c = 0;
623 
  while (value)
624 
    {
625 
      if (value & 1)
626 
        c++;
627 
      value >>= 1;
628 133 markom 
    }
629 138 markom 
  return c;
630 
}
631 133 markom 
 
632 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
633 
   Parameters are stored in ti struct.  */
634 
 
635 
static struct insn_op_struct *
636 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
637 
{
638 
  char *args = opcode->args;
639 
  int i, type;
640 
 
641 
  i = 0;
642 
  type = 0;
643 262 markom 
  /* In case we don't have any parameters, we add dummy read from r0.  */
644 
  if (!(*args)) {
645 263 markom 
    cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
646 262 markom 
    cur->data = 0;
647 355 markom 
    debug(9, "#%08X %08X\n", cur->type, cur->data);
648 262 markom 
    cur++;
649 
    return cur;
650 
  }
651 
 
652 138 markom 
  while (*args != '\0')
653 
    {
654 
      if (*args == 'r')
655 
        {
656 
          args++;
657 
          type |= OPTYPE_REG;
658 133 markom 
        }
659 138 markom 
      else if (isalpha (*args))
660 
        {
661 
          unsigned long arg;
662 
          arg = insn_extract(*args, opcode->encoding);
663 355 markom 
          debug(9, "%s : %08X ------\n", opcode->name, arg);
664 138 markom 
          if (letter_signed (*args))
665 
            {
666 
              type |= OPTYPE_SIG;
667 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
668 
            }
669 
 
670 
          /* Split argument to sequences of consecutive ones.  */
671 
          while (arg)
672 
            {
673 
              int shr = 0;
674 
              unsigned long tmp = arg, mask = 0;
675 
              while ((tmp & 1) == 0)
676 
                {
677 
                  shr++;
678 
                  tmp >>= 1;
679 
                }
680 
              while (tmp & 1)
681 
                {
682 
                  mask++;
683 
                  tmp >>= 1;
684 
                }
685 
              cur->type = type | shr;
686 
              cur->data = mask;
687 
              arg &= ~(((1 << mask) - 1) << shr);
688 355 markom 
              debug(6, "|%08X %08X\n", cur->type, cur->data);
689 138 markom 
              cur++;
690 
            }
691 
          args++;
692 
        }
693 
      else if (*args == '(')
694 
        {
695 
          /* Next param is displacement.  Later we will treat them as one operand.  */
696 
          cur--;
697 
          cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP;
698 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
699 138 markom 
          cur++;
700 
          type = 0;
701 
          i++;
702 
          args++;
703 
        }
704 
      else if (*args == OPERAND_DELIM)
705 
        {
706 
          cur--;
707 
          cur->type = type | cur->type | OPTYPE_OP;
708 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
709 138 markom 
          cur++;
710 
          type = 0;
711 
          i++;
712 
          args++;
713 
        }
714 
      else if (*args == '0')
715 
        {
716 
          cur->type = type;
717 
          cur->data = 0;
718 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
719 138 markom 
          cur++;
720 
          type = 0;
721 
          i++;
722 
          args++;
723 
        }
724 
      else if (*args == ')')
725 
        args++;
726 
      else
727 
        {
728 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
729 
          exit (1);
730 
        }
731 133 markom 
    }
732 138 markom 
  cur--;
733 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
734 355 markom 
  debug(9, "#%08X %08X\n", cur->type, cur->data);
735 138 markom 
  cur++;
736 133 markom 
  return cur;
737 
}
738 
 
739 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
740 
 
741 
void
742 
build_automata()
743 
{
744 371 markom 
  int i;
745 133 markom 
  unsigned long *end;
746 138 markom 
  struct insn_op_struct *cur;
747 
 
748 133 markom 
  automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
749 138 markom 
  ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
750 133 markom 
 
751 
  nuncovered = num_opcodes;
752 709 markom 
 
753 
#ifdef HAS_EXECUTION
754 138 markom 
  printf("Building automata... ");
755 709 markom 
#endif
756 
 
757 133 markom 
  /* Build temporary information about instructions.  */
758 138 markom 
  for (i = 0; i < num_opcodes; i++)
759 
    {
760 
      unsigned long ones, zeros;
761 
      char *encoding = or32_opcodes[i].encoding;
762 
      ones  = insn_extract('1', encoding);
763 
      zeros = insn_extract('0', encoding);
764 
      ti[i].insn_mask = ones | zeros;
765 
      ti[i].insn = ones;
766 
      ti[i].in_pass = curpass = 0;
767 344 markom 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
768 138 markom 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
769 
    }
770 133 markom 
 
771 
  /* Until all are covered search for best criteria to separate them.  */
772 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
773 
  if (end - automata > MAX_AUTOMATA_SIZE)
774 
    {
775 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
776 
      exit (1);
777 
    }
778 709 markom 
#ifdef HAS_EXECUTION
779 138 markom 
  printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
780 709 markom 
#endif
781 371 markom 
 
782 709 markom 
#ifdef HAS_EXECUTION
783 138 markom 
  printf("Parsing operands data... ");
784 709 markom 
#endif
785 138 markom 
  op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
786 
  op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
787 
  cur = op_data;
788 
  for (i = 0; i < num_opcodes; i++)
789 
    {
790 
      op_start[i] = cur;
791 
      cur = parse_params (&or32_opcodes[i], cur);
792 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
793 
        {
794 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
795 
          exit (1);
796 
        }
797 
    }
798 709 markom 
#ifdef HAS_EXECUTION
799 138 markom 
  printf("done.\n");
800 709 markom 
#endif
801 133 markom 
}
802 
 
803 138 markom 
void destruct_automata ()
804 
{
805 
  free (ti);
806 133 markom 
  free (automata);
807 138 markom 
  free (op_data);
808 
  free (op_start);
809 133 markom 
}
810 
 
811 
/* Decodes instruction and returns instruction index.  */
812 138 markom 
int insn_decode (unsigned int insn)
813 
{
814 133 markom 
  unsigned long *a = automata;
815 138 markom 
  int i;
816 
  while (!(*a & LEAF_FLAG))
817 
    {
818 
      unsigned int first = *a;
819 703 markom 
      //debug(9, "%i ", a - automata);
820 138 markom 
      a++;
821 
      i = (insn >> first) & *a;
822 
      a++;
823 
      if (!*(a + i))
824 
        { /* Invalid instruction found?  */
825 703 markom 
          //debug(9, "XXX\n", i);
826 138 markom 
          return -1;
827 
        }
828 
      a = automata + *(a + i);
829 
    }
830 
  i = *a & ~LEAF_FLAG;
831 703 markom 
  //debug(9, "%i\n", i);
832 138 markom 
  /* Final check - do we have direct match?
833 
     (based on or32_opcodes this should be the only possibility,
834 
     but in case of invalid/missing instruction we must perform a check)  */
835 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
836 
    return i;
837 
  else
838 
    return -1;
839 133 markom 
}
840 371 markom 
 
841 
static char disassembled_str[50];
842 
char *disassembled = &disassembled_str[0];
843 
 
844 
/* Automagically does zero- or sign- extension and also finds correct
845 
   sign bit position if sign extension is correct extension. Which extension
846 
   is proper is figured out from letter description. */
847 
 
848 879 markom 
unsigned long
849 371 markom 
extend_imm(unsigned long imm, char l)
850 
{
851 
  unsigned long mask;
852 
  int letter_bits;
853 
 
854 
  /* First truncate all bits above valid range for this letter
855 
     in case it is zero extend. */
856 
  letter_bits = letter_range(l);
857 
  mask = (1 << letter_bits) - 1;
858 
  imm &= mask;
859 
 
860 
  /* Do sign extend if this is the right one. */
861 
  if (letter_signed(l) && (imm >> (letter_bits - 1)))
862 
    imm |= (~mask);
863 
 
864 
  return imm;
865 
}
866 
 
867 879 markom 
unsigned long
868 371 markom 
or32_extract(param_ch, enc_initial, insn)
869 
     char param_ch;
870 
     char *enc_initial;
871 
     unsigned long insn;
872 
{
873 
  char *enc;
874 
  unsigned long ret = 0;
875 
  int opc_pos = 0;
876 
  int param_pos = 0;
877 
 
878 
  for (enc = enc_initial; *enc != '\0'; enc++)
879 
    if (*enc == param_ch)
880 
      {
881 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
882 
          continue;
883 
        else
884 
          param_pos++;
885 
      }
886 
 
887 
#if DEBUG
888 
  printf("or32_extract: %x ", param_pos);
889 
#endif
890 
  opc_pos = 32;
891 
  for (enc = enc_initial; *enc != '\0'; )
892 
    if ((*enc == '0') && (*(enc+1) == 'x'))
893 
      {
894 
        opc_pos -= 4;
895 
        if ((param_ch == '0') || (param_ch == '1'))
896 
          {
897 
            unsigned long tmp = strtol(enc, NULL, 16);
898 
#if DEBUG
899 
            printf(" enc=%s, tmp=%x ", enc, tmp);
900 
#endif
901 
            if (param_ch == '0')
902 
              tmp = 15 - tmp;
903 
            ret |= tmp << opc_pos;
904 
          }
905 
        enc += 3;
906 
      }
907 
    else if ((*enc == '0') || (*enc == '1'))
908 
      {
909 
        opc_pos--;
910 
        if (param_ch == *enc)
911 
          ret |= 1 << opc_pos;
912 
        enc++;
913 
      }
914 
    else if (*enc == param_ch)
915 
      {
916 
        opc_pos--;
917 
        param_pos--;
918 
#if DEBUG
919 
        printf("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
920 
#endif
921 
        if (islower(param_ch))
922 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
923 
        else
924 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
925 
        enc++;
926 
      }
927 
    else if (isalpha(*enc))
928 
      {
929 
        opc_pos--;
930 
        enc++;
931 
      }
932 
    else if (*enc == '-')
933 
      {
934 
        opc_pos--;
935 
        enc++;
936 
      }
937 
    else
938 
      enc++;
939 
 
940 
#if DEBUG
941 
  printf ("ret=%x\n", ret);
942 
#endif
943 
  return ret;
944 
}
945 
 
946 
/* Print register. Used only by print_insn. */
947 
 
948 703 markom 
static char *
949 
or32_print_register (dest, param_ch, encoding, insn)
950 
     char *dest;
951 371 markom 
     char param_ch;
952 
     char *encoding;
953 
     unsigned long insn;
954 
{
955 
  int regnum = or32_extract(param_ch, encoding, insn);
956 
 
957 703 markom 
  sprintf (dest, "r%d", regnum);
958 
  while (*dest) dest++;
959 
  return dest;
960 371 markom 
}
961 
 
962 
/* Print immediate. Used only by print_insn. */
963 
 
964 703 markom 
static char *
965 
or32_print_immediate (dest, param_ch, encoding, insn)
966 
     char *dest;
967 371 markom 
     char param_ch;
968 
     char *encoding;
969 
     unsigned long insn;
970 
{
971 
  int imm = or32_extract (param_ch, encoding, insn);
972 
 
973 
  imm = extend_imm(imm, param_ch);
974 
 
975 
  if (letter_signed(param_ch))
976 
    {
977 
      if (imm < 0)
978 703 markom 
        sprintf (dest, "%d", imm);
979 371 markom 
      else
980 703 markom 
        sprintf (dest, "0x%x", imm);
981 371 markom 
    }
982 
  else
983 703 markom 
    sprintf (dest, "%#x", imm);
984 
  while (*dest) dest++;
985 
  return dest;
986 371 markom 
}
987 
 
988 
/* Disassemble one instruction from insn to disassemble.
989 
   Return the size of the instruction.  */
990 
 
991 
int
992 
disassemble_insn (insn)
993 
     unsigned long insn;
994 
{
995 703 markom 
  return disassemble_index (insn, insn_decode (insn));
996 
}
997 371 markom 
 
998 703 markom 
/* Disassemble one instruction from insn index.
999 
   Return the size of the instruction.  */
1000 
 
1001 
int
1002 
disassemble_index (insn, index)
1003 
     unsigned long insn;
1004 
     int index;
1005 
{
1006 
  char *dest = disassembled;
1007 371 markom 
  if (index >= 0)
1008 
    {
1009 
      struct or32_opcode const *opcode = &or32_opcodes[index];
1010 
      char *s;
1011 
 
1012 703 markom 
      strcpy (dest, opcode->name);
1013 
      while (*dest) dest++;
1014 
      *dest++ = ' ';
1015 
      *dest = 0;
1016 
 
1017 371 markom 
      for (s = opcode->args; *s != '\0'; ++s)
1018 
        {
1019 
          switch (*s)
1020 
            {
1021 
            case '\0':
1022 703 markom 
              return insn_len (insn);
1023 714 markom 
 
1024 371 markom 
            case 'r':
1025 703 markom 
              dest = or32_print_register(dest, *++s, opcode->encoding, insn);
1026 371 markom 
              break;
1027 714 markom 
 
1028 371 markom 
            default:
1029 
              if (strchr (opcode->encoding, *s))
1030 703 markom 
                dest = or32_print_immediate (dest, *s, opcode->encoding, insn);
1031 
              else {
1032 
                *dest++ = *s;
1033 
                *dest = 0;
1034 
              }
1035 371 markom 
            }
1036 
        }
1037 
    }
1038 
  else
1039 
    {
1040 
      /* This used to be %8x for binutils.  */
1041 1308 phoenix 
      sprintf(dest, ".word 0x%08lx", insn);
1042 703 markom 
      while (*dest) dest++;
1043 371 markom 
    }
1044 
  return insn_len (insn);
1045 
}

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