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[/] [or1k/] [tags/] [nog_patch_36/] [insight/] [opcodes/] [or32.c] - Blame information for rev 1169

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

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