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[/] [or1k/] [tags/] [nog_patch_56/] [gen_or1k_isa/] [sources/] [opcode/] [or32.c] - Blame information for rev 1114

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

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