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[/] [or1k/] [trunk/] [insight/] [opcodes/] [or32.c] - Blame information for rev 671

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1 133 markom 
/* Table of opcodes for the OpenRISC 1000 ISA.
2 
   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
3 
   Contributed by Damjan Lampret (lampret@opencores.org).
4 
 
5 
This file is part of gen_or1k_isa, or1k, GDB and GAS.
6 
 
7 
This program is free software; you can redistribute it and/or modify
8 
it under the terms of the GNU General Public License as published by
9 
the Free Software Foundation; either version 2 of the License, or
10 
(at your option) any later version.
11 
 
12 
This program is distributed in the hope that it will be useful,
13 
but WITHOUT ANY WARRANTY; without even the implied warranty of
14 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 
GNU General Public License for more details.
16 
 
17 
You should have received a copy of the GNU General Public License
18 
along with this program; if not, write to the Free Software
19 
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
20 
 
21 
/* We treat all letters the same in encode/decode routines so
22 
   we need to assign some characteristics to them like signess etc.*/
23 
#include <string.h>
24 
#include <stdio.h>
25 
#include <stdlib.h>
26 371 markom 
#include <ctype.h>
27 133 markom 
 
28 371 markom 
 
29 138 markom 
#ifdef HAVE_CONFIG_H
30 
# include "config.h"
31 
#endif
32 133 markom 
#include "opcode/or32.h"
33 
 
34 
/* **INDENT-OFF** */
35 
 
36 
CONST struct or32_letter or32_letters[] =
37 
{
38 
{ 'A', NUM_UNSIGNED },
39 
{ 'B', NUM_UNSIGNED },
40 
{ 'D', NUM_UNSIGNED },
41 
{ 'I', NUM_SIGNED },
42 
{ 'K', NUM_UNSIGNED },
43 
{ 'L', NUM_UNSIGNED },
44 
{ 'N', NUM_SIGNED },
45 
{ '0', NUM_UNSIGNED },
46 
{ '\0', 0 }     /* dummy entry */
47 
};
48 
 
49 
/* Opcode encoding:
50 
   machine[31:30]: first two bits of opcode
51 
                   00 - neither of source operands is GPR
52 
                   01 - second source operand is GPR (rB)
53 
                   10 - first source operand is GPR (rA)
54 
                   11 - both source operands are GPRs (rA and rB)
55 
   machine[29:26]: next four bits of opcode
56 
   machine[25:00]: instruction operands (specific to individual instruction)
57 
 
58 
  Recommendation: irrelevant instruction bits should be set with a value of
59 
  bits in same positions of instruction preceding current instruction in the
60 
  code (when assembling).
61 
*/
62 
 
63 
#define EFN &l_none
64 
 
65 
#ifdef HAS_EXECUTION
66 
#define EF(func) &(func)
67 
#define EFI &l_invalid
68 
#else  /* HAS_EXECUTION */
69 
#define EF(func) EFN
70 
#define EFI EFN
71 
#endif /* HAS_EXECUTION */
72 
 
73 
CONST struct or32_opcode or32_opcodes[] =
74 
{
75 
 
76 
{ "l.j",       "N",            "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY },
77 
{ "l.jal",     "N",            "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY },
78 138 markom 
{ "l.bnf",     "N",            "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG},
79 
{ "l.bf",      "N",            "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG },
80 671 markom 
{ "l.nop",     "",             "00 0x5  01--- ----- ---- ---- ---- ----", EF(l_nop), 0 },
81 133 markom 
{ "l.movhi",   "rD,K",         "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0 }, /*MM*/
82 
{ "l.macrc",   "rD",           "00 0x6  DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0 }, /*MM*/
83 671 markom 
{ "l.mfspr",   "rD,rA,K",      "00 0x7  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0 },
84 133 markom 
{ "l.sys",     "K",            "00 0x8  00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0 },
85 144 chris 
{ "l.trap",    "K",            "00 0x8  01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0 }, /* CZ 21/06/01 */
86 133 markom 
{ "l.msync",   "",             "00 0x8  10000 00000 0000 0000 0000 0000", EFN, 0 },
87 
{ "l.psync",   "",             "00 0x8  10100 00000 0000 0000 0000 0000", EFN, 0 },
88 
{ "l.csync",   "",             "00 0x8  11000 00000 0000 0000 0000 0000", EFN, 0 },
89 
{ "l.rfe",     "",             "00 0x9  ----- ----- ---- ---- ---- ----", EF(l_rfe), OR32_IF_DELAY },
90 
 
91 
{ "lv.all_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
92 
{ "lv.all_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
93 
{ "lv.all_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
94 
{ "lv.all_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
95 
{ "lv.all_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
96 
{ "lv.all_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
97 
{ "lv.all_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
98 
{ "lv.all_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
99 
{ "lv.all_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
100 
{ "lv.all_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
101 
{ "lv.all_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
102 
{ "lv.all_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
103 
{ "lv.any_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0", EFI, 0 },
104 
{ "lv.any_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1", EFI, 0 },
105 
{ "lv.any_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2", EFI, 0 },
106 
{ "lv.any_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3", EFI, 0 },
107 
{ "lv.any_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4", EFI, 0 },
108 
{ "lv.any_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5", EFI, 0 },
109 
{ "lv.any_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6", EFI, 0 },
110 
{ "lv.any_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7", EFI, 0 },
111 
{ "lv.any_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8", EFI, 0 },
112 
{ "lv.any_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9", EFI, 0 },
113 
{ "lv.any_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA", EFI, 0 },
114 
{ "lv.any_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB", EFI, 0 },
115 
{ "lv.add.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0", EFI, 0 },
116 
{ "lv.add.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1", EFI, 0 },
117 
{ "lv.adds.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2", EFI, 0 },
118 
{ "lv.adds.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3", EFI, 0 },
119 
{ "lv.addu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4", EFI, 0 },
120 
{ "lv.addu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5", EFI, 0 },
121 
{ "lv.addus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6", EFI, 0 },
122 
{ "lv.addus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7", EFI, 0 },
123 
{ "lv.and",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8", EFI, 0 },
124 
{ "lv.avg.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9", EFI, 0 },
125 
{ "lv.avg.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA", EFI, 0 },
126 
{ "lv.cmp_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0", EFI, 0 },
127 
{ "lv.cmp_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1", EFI, 0 },
128 
{ "lv.cmp_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2", EFI, 0 },
129 
{ "lv.cmp_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3", EFI, 0 },
130 
{ "lv.cmp_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4", EFI, 0 },
131 
{ "lv.cmp_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5", EFI, 0 },
132 
{ "lv.cmp_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6", EFI, 0 },
133 
{ "lv.cmp_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7", EFI, 0 },
134 
{ "lv.cmp_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8", EFI, 0 },
135 
{ "lv.cmp_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9", EFI, 0 },
136 
{ "lv.cmp_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA", EFI, 0 },
137 
{ "lv.cmp_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB", EFI, 0 },
138 
{ "lv.madds.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4", EFI, 0 },
139 
{ "lv.max.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5", EFI, 0 },
140 
{ "lv.max.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6", EFI, 0 },
141 
{ "lv.merge.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7", EFI, 0 },
142 
{ "lv.merge.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8", EFI, 0 },
143 
{ "lv.min.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9", EFI, 0 },
144 
{ "lv.min.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA", EFI, 0 },
145 
{ "lv.msubs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB", EFI, 0 },
146 
{ "lv.muls.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC", EFI, 0 },
147 
{ "lv.nand",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD", EFI, 0 },
148 
{ "lv.nor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE", EFI, 0 },
149 
{ "lv.or",     "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF", EFI, 0 },
150 
{ "lv.pack.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0", EFI, 0 },
151 
{ "lv.pack.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1", EFI, 0 },
152 
{ "lv.packs.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2", EFI, 0 },
153 
{ "lv.packs.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3", EFI, 0 },
154 
{ "lv.packus.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4", EFI, 0 },
155 
{ "lv.packus.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5", EFI, 0 },
156 
{ "lv.perm.n", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6", EFI, 0 },
157 
{ "lv.rl.b",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7", EFI, 0 },
158 
{ "lv.rl.h",   "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8", EFI, 0 },
159 
{ "lv.sll.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9", EFI, 0 },
160 
{ "lv.sll.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA", EFI, 0 },
161 
{ "lv.sll",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB", EFI, 0 },
162 
{ "lv.srl.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC", EFI, 0 },
163 
{ "lv.srl.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD", EFI, 0 },
164 
{ "lv.sra.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE", EFI, 0 },
165 
{ "lv.sra.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF", EFI, 0 },
166 
{ "lv.srl",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0", EFI, 0 },
167 
{ "lv.sub.b",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1", EFI, 0 },
168 
{ "lv.sub.h",  "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2", EFI, 0 },
169 
{ "lv.subs.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3", EFI, 0 },
170 
{ "lv.subs.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4", EFI, 0 },
171 
{ "lv.subu.b", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5", EFI, 0 },
172 
{ "lv.subu.h", "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6", EFI, 0 },
173 
{ "lv.subus.b","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7", EFI, 0 },
174 
{ "lv.subus.h","rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8", EFI, 0 },
175 
{ "lv.unpack.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9", EFI, 0 },
176 
{ "lv.unpack.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA", EFI, 0 },
177 
{ "lv.xor",    "rD,rA,rB",     "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB", EFI, 0 },
178 
{ "lv.cust1",  "",             "00 0xA  ----- ----- ---- ---- 0xC ----", EFI, 0 },
179 
{ "lv.cust2",  "",             "00 0xA  ----- ----- ---- ---- 0xD ----", EFI, 0 },
180 
{ "lv.cust3",  "",             "00 0xA  ----- ----- ---- ---- 0xE ----", EFI, 0 },
181 
{ "lv.cust4",  "",             "00 0xA  ----- ----- ---- ---- 0xF ----", EFI, 0 },
182 
 
183 
{ "lf.add.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
184 
{ "lf.sub.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
185 
{ "lf.mul.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
186 
{ "lf.div.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
187 
{ "lf.itof.s",  "rD,rA",       "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
188 
{ "lf.ftoi.s",  "rD,rA",       "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
189 
{ "lf.rem.s",   "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
190 
{ "lf.madd.s",  "rD,rA,rB",    "00 0xB  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
191 
{ "lf.sfeq.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
192 
{ "lf.sfne.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
193 
{ "lf.sfgt.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
194 
{ "lf.sfge.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
195 
{ "lf.sflt.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
196 
{ "lf.sfle.s",  "rA,rB",       "00 0xB  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
197 
{ "lf.cust1.s", "",            "00 0xB  ----- ----- ---- ---- 0xE ----", EFI, 0 },
198 
 
199 
{ "lf.add.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
200 
{ "lf.sub.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
201 
{ "lf.mul.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x2", EFI, 0 },
202 
{ "lf.div.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x3", EFI, 0 },
203 
{ "lf.itof.d",  "rD,rA",       "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x4", EFI, 0 },
204 
{ "lf.ftoi.d",  "rD,rA",       "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x5", EFI, 0 },
205 
{ "lf.rem.d",   "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x6", EFI, 0 },
206 
{ "lf.madd.d",  "rD,rA,rB",    "00 0xC  DDDDD AAAAA BBBB B--- 0x1 0x7", EFI, 0 },
207 
{ "lf.sfeq.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0x8", EFI, 0 },
208 
{ "lf.sfne.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0x9", EFI, 0 },
209 
{ "lf.sfgt.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xA", EFI, 0 },
210 
{ "lf.sfge.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xB", EFI, 0 },
211 
{ "lf.sflt.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xC", EFI, 0 },
212 
{ "lf.sfle.d",  "rA,rB",       "00 0xC  ----- AAAAA BBBB B--- 0x1 0xD", EFI, 0 },
213 
{ "lf.cust1.d", "",            "00 0xC  ----- ----- ---- ---- 0xE ----", EFI, 0 },
214 
 
215 
{ "lvf.ld",     "rD,0(rA)",    "00 0xD  DDDDD AAAAA ---- ---- 0x0 0x0", EFI, 0 },
216 
{ "lvf.lw",     "rD,0(rA)",    "00 0xD  DDDDD AAAAA ---- ---- 0x0 0x1", EFI, 0 },
217 
{ "lvf.sd",     "0(rA),rB",    "00 0xD  ----- AAAAA BBBB B--- 0x1 0x0", EFI, 0 },
218 
{ "lvf.sw",     "0(rA),rB",    "00 0xD  ----- AAAAA BBBB B--- 0x1 0x1", EFI, 0 },
219 
 
220 671 markom 
{ "l.mtspr",   "rA,rB,K",      "01 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
221 133 markom 
{ "l.jr",      "rB",           "01 0x1  ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY },
222 
{ "l.jalr",    "rB",           "01 0x2  ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY },
223 174 markom 
{ "l.cust1",   "",             "01 0xC  ----- ----- ---- ---- ---- ----", EF(l_cust1), 0 },
224 
{ "l.cust2",   "",             "01 0xD  ----- ----- ---- ---- ---- ----", EF(l_cust2), 0 },
225 
{ "l.cust3",   "",             "01 0xE  ----- ----- ---- ---- ---- ----", EF(l_cust3), 0 },
226 
{ "l.cust4",   "",             "01 0xF  ----- ----- ---- ---- ---- ----", EF(l_cust4), 0 },
227 133 markom 
 
228 
{ "l.ld",      "rD,I(rA)",     "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
229 
{ "l.lwz",     "rD,I(rA)",     "10 0x1  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0 },
230 
{ "l.lws",     "rD,I(rA)",     "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
231 
{ "l.lbz",     "rD,I(rA)",     "10 0x3  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0 },
232 
{ "l.lbs",     "rD,I(rA)",     "10 0x4  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0 },
233 
{ "l.lhz",     "rD,I(rA)",     "10 0x5  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0 },
234 
{ "l.lhs",     "rD,I(rA)",     "10 0x6  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0 },
235 
 
236 671 markom 
{ "l.addi",    "rD,rA,I",      "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), 0 },
237 133 markom 
{ "l.addic",   "rD,rA,I",      "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
238 671 markom 
{ "l.andi",    "rD,rA,K",      "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), 0 },
239 133 markom 
{ "l.ori",     "rD,rA,K",      "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0  },
240 
{ "l.xori",    "rD,rA,I",      "10 0xB  DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0 },
241 
{ "l.muli",    "rD,rA,I",      "10 0xC  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
242 671 markom 
{ "l.maci",    "rA,I",         "10 0xD  ----- AAAAA IIII IIII IIII IIII", EF(l_mac), 0 },
243 133 markom 
{ "l.slli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0 },
244 
{ "l.srli",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0 },
245 
{ "l.srai",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0 },
246 
{ "l.rori",    "rD,rA,L",      "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0 },
247 
 
248 138 markom 
{ "l.sfeqi",   "rA,I",         "10 0xF  00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG },
249 
{ "l.sfnei",   "rA,I",         "10 0xF  00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG },
250 
{ "l.sfgtui",  "rA,I",         "10 0xF  00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG },
251 
{ "l.sfgeui",  "rA,I",         "10 0xF  00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG },
252 
{ "l.sfltui",  "rA,I",         "10 0xF  00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG },
253 
{ "l.sfleui",  "rA,I",         "10 0xF  00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG },
254 
{ "l.sfgtsi",  "rA,I",         "10 0xF  01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG },
255 
{ "l.sfgesi",  "rA,I",         "10 0xF  01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG },
256 
{ "l.sfltsi",  "rA,I",         "10 0xF  01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG },
257 
{ "l.sflesi",  "rA,I",         "10 0xF  01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG },
258 133 markom 
 
259 
{ "l.sd",      "I(rA),rB",     "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 },
260 
{ "l.sw",      "I(rA),rB",     "11 0x5  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 },
261 
{ "l.sb",      "I(rA),rB",     "11 0x6  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 },
262 
{ "l.sh",      "I(rA),rB",     "11 0x7  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
263 
 
264 671 markom 
{ "l.add",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), 0 },
265 133 markom 
{ "l.addc",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1", EFI, 0 },
266 
{ "l.sub",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 },
267 671 markom 
{ "l.and",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), 0 },
268 133 markom 
{ "l.or",      "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 },
269 
{ "l.xor",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 },
270 
{ "l.mul",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 },
271 671 markom 
{ "l.mac",     "rA,rB",        "11 0x8  ----- AAAAA BBBB B-00 0--- 0x7", EF(l_mac), 0 }, /*MM*/
272 
{ "l.msb",     "rA,rB",        "11 0x8  ----- AAAAA BBBB B-00 1--- 0x7", EF(l_msb), 0 }, /*MM*/
273 133 markom 
{ "l.sll",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 },
274 
{ "l.srl",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 },
275 
{ "l.sra",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 },
276 
{ "l.ror",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 },
277 
{ "l.div",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x9", EF(l_div), 0 },
278 
{ "l.divu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xA", EF(l_divu), 0 },
279 
{ "l.mulu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 },
280 671 markom 
{ "l.exths",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0xC", EFI, 0 },
281 
{ "l.extbs",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0xC", EFI, 0 },
282 
{ "l.exthz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0xC", EFI, 0 },
283 
{ "l.extbz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0xC", EFI, 0 },
284 
{ "l.extws",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0xD", EFI, 0 },
285 
{ "l.extwz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0xD", EFI, 0 },
286 
{ "l.cmov",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE", EFI, 0 },
287 133 markom 
{ "l.ff1",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 },
288 
 
289 138 markom 
{ "l.sfeq",    "rA,rB",        "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG },
290 
{ "l.sfne",    "rA,rB",        "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG },
291 
{ "l.sfgtu",   "rA,rB",        "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG },
292 
{ "l.sfgeu",   "rA,rB",        "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG },
293 
{ "l.sfltu",   "rA,rB",        "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG },
294 
{ "l.sfleu",   "rA,rB",        "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG },
295 
{ "l.sfgts",   "rA,rB",        "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG },
296 
{ "l.sfges",   "rA,rB",        "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG },
297 
{ "l.sflts",   "rA,rB",        "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG },
298 
{ "l.sfles",   "rA,rB",        "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
299 133 markom 
 
300 
{ "l.cust5",   "",             "11 0xC  ----- ----- ---- ---- ---- ----", EFI, 0 },
301 
{ "l.cust6",   "",             "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
302 
{ "l.cust7",   "",             "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
303 
{ "l.cust8",   "",             "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
304 
 
305 221 markom 
/* This section should not be defined in or1ksim, since it contains duplicates,
306 
   which would cause machine builder to complain.  */
307 374 simons 
#ifdef HAS_CUST
308 221 markom 
{ "l.cust5_1",   "rD",         "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
309 
{ "l.cust5_2",   "rD,rA"   ,   "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
310 
{ "l.cust5_3",   "rD,rA,rB",   "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
311 
 
312 
{ "l.cust6_1",   "rD",         "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
313 
{ "l.cust6_2",   "rD,rA"   ,   "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
314 
{ "l.cust6_3",   "rD,rA,rB",   "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
315 
 
316 
{ "l.cust7_1",   "rD",         "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
317 
{ "l.cust7_2",   "rD,rA"   ,   "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
318 
{ "l.cust7_3",   "rD,rA,rB",   "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
319 
 
320 
{ "l.cust8_1",   "rD",         "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
321 
{ "l.cust8_2",   "rD,rA"   ,   "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
322 
{ "l.cust8_3",   "rD,rA,rB",   "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
323 
#endif
324 
 
325 133 markom 
{ "", "", "", EFI, 0 }           /* Dummy entry, not included in num_opcodes.  This
326 
                           lets code examine entry i+1 without checking
327 
                           if we've run off the end of the table.  */
328 
};
329 
 
330 
#undef EFI
331 
#undef EFN
332 
#undef EF
333 
 
334 
/* **INDENT-ON** */
335 
 
336 371 markom 
/* Define dummy, if debug is not defined.  */
337 
#if !defined HAS_DEBUG
338 
void debug(int level, const char *format, ...)
339 
{
340 
  /* Just to get rid of warnings.  */
341 
  format = level = 0;
342 
}
343 
#endif
344 133 markom 
 
345 371 markom 
CONST int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
346 
 
347 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
348 
int
349 
insn_len(int insn_index)
350 133 markom 
{
351 
  insn_index = 0; /* Just to get rid that warning.  */
352 
  return 4;
353 
}
354 
 
355 
/* Is individual insn's operand signed or unsigned? */
356 138 markom 
int
357 
letter_signed(char l)
358 133 markom 
{
359 
  CONST struct or32_letter *pletter;
360 
 
361 
  for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
362 
    if (pletter->letter == l)
363 
      return pletter->sign;
364 
 
365 
  printf("letter_signed(%c): Unknown letter.\n", l);
366 
  return 0;
367 
}
368 
 
369 
/* Number of letters in the individual lettered operand. */
370 138 markom 
int
371 
letter_range(char l)
372 133 markom 
{
373 
  CONST struct or32_opcode *pinsn;
374 
  char *enc;
375 
  int range = 0;
376 
 
377 138 markom 
  for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
378 
    {
379 
      if (strchr(pinsn->encoding,l))
380 
        {
381 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
382 
            if ((*enc == '0') && (*(enc+1) == 'x'))
383 
              enc += 2;
384 
            else if (*enc == l)
385 
              range++;
386 
          return range;
387 133 markom 
        }
388 
    }
389 
  printf("\nABORT: letter_range(%c): Never used letter.\n", l);
390 
  exit(1);
391 
}
392 
 
393 
/* MM: Returns index of given instruction name.  */
394 138 markom 
int
395 
insn_index (char *insn)
396 
{
397 133 markom 
  int i, found = -1;
398 371 markom 
  for (i = 0; i < num_opcodes; i++)
399 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
400 
      {
401 
        found = i;
402 
        break;
403 
      }
404 133 markom 
  return found;
405 
}
406 
 
407 138 markom 
CONST char *insn_name(int index)
408 
{
409 371 markom 
  if (index >= 0 && index < num_opcodes)
410 133 markom 
    return or32_opcodes[index].name;
411 
  else
412 
    return "???";
413 
}
414 
 
415 138 markom 
void l_none()
416 
{
417 133 markom 
}
418 
 
419 
 
420 
/*** Finite automata for instruction decoding building code ***/
421 
 
422 
/* Find simbols in encoding.  */
423 
static unsigned long
424 
insn_extract(param_ch, enc_initial)
425 
     char param_ch;
426 
     char *enc_initial;
427 
{
428 
  char *enc;
429 
  unsigned long ret = 0;
430 
  unsigned opc_pos = 32;
431 
  for (enc = enc_initial; *enc != '\0'; )
432 
    if ((*enc == '0') && (*(enc+1) == 'x'))
433 
      {
434 
        unsigned long tmp = strtol(enc+2, NULL, 16);
435 
        opc_pos -= 4;
436 138 markom 
        if (param_ch == '0' || param_ch == '1')
437 
          {
438 
            if (param_ch == '0')
439 
              tmp = 15 - tmp;
440 
            ret |= tmp << opc_pos;
441 
          }
442 133 markom 
        enc += 3;
443 
      }
444 138 markom 
    else
445 
      {
446 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
447 
          {
448 
            opc_pos--;
449 
            if (param_ch == *enc)
450 
              ret |= 1 << opc_pos;
451 
          }
452 
        enc++;
453 133 markom 
      }
454 
  return ret;
455 
}
456 
 
457 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
458 
#define MAX_OP_TABLE_SIZE (1200)
459 133 markom 
#define LEAF_FLAG         (0x80000000)
460 
#define MAX_LEN           (8)
461 
 
462 
#ifndef MIN
463 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
464 
#endif
465 
 
466 
unsigned long *automata;
467 
int nuncovered;
468 
int curpass = 0;
469 
 
470 138 markom 
/* MM: Struct that hold runtime build information about instructions.  */
471 
struct temp_insn_struct
472 
{
473 
  unsigned long insn;
474 
  unsigned long insn_mask;
475 
  int in_pass;
476 
} *ti;
477 
 
478 
struct insn_op_struct *op_data, **op_start;
479 
 
480 
/* Recursive utility function used to find best match and to build automata.  */
481 
 
482 
static unsigned long *
483 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
484 
{
485 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
486 
  unsigned long cur_mask = mask;
487 
  unsigned long *next;
488 
 
489 
  for (i = 0; i < num_opcodes; i++)
490 138 markom 
    if (ti[i].in_pass == pass)
491 
      {
492 
        cur_mask &= ti[i].insn_mask;
493 
        ninstr++;
494 
        last_match = i;
495 
      }
496 
 
497 344 markom 
  debug(8, "%08X %08X\n", mask, cur_mask);
498 138 markom 
  if (ninstr == 0)
499 
    return 0;
500 
  if (ninstr == 1)
501 
    {
502 
      /* Leaf holds instruction index. */
503 344 markom 
      debug(8, "%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
504 138 markom 
      *cur = LEAF_FLAG | last_match;
505 
      cur++;
506 
      nuncovered--;
507 
    } else {
508 
      /* Find longest match.  */
509 
      for (i = 0; i < 32; i++)
510 
        {
511 
          int len;
512 
          for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
513 
            {
514 
              unsigned long m = (1UL << ((unsigned long)len)) - 1;
515 344 markom 
              debug(9, " (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);
516 138 markom 
              if ((m & (cur_mask >> (unsigned)i)) == m)
517 
                {
518 
                  best_len = len;
519 
                  best_first = i;
520 344 markom 
                  debug(9, "!");
521 138 markom 
                }
522 
              else
523 
                break;
524 
            }
525 
        }
526 344 markom 
      debug(9, "\n");
527 138 markom 
      if (!best_len)
528 
        {
529 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
530 
          for (i = 0; i < num_opcodes; i++)
531 
            if (ti[i].in_pass == pass)
532 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
533 
 
534 
          fprintf (stderr, "\n");
535 
          exit (1);
536 
        }
537 344 markom 
      debug(8, "%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
538 138 markom 
      *cur = best_first;
539 
      cur++;
540 
      *cur = (1 << best_len) - 1;
541 
      cur++;
542 
      next = cur;
543 
      /* Allocate space for pointers.  */
544 
      cur += 1 << best_len;
545 
      cur_mask = (1 << (unsigned long)best_len) - 1;
546 
 
547 
      for (i = 0; i < (1 << (unsigned long)best_len); i++)
548 
        {
549 
          int j;
550 
          unsigned long *c;
551 
          curpass++;
552 
          for (j = 0; j < num_opcodes; j++)
553 
            if (ti[j].in_pass == pass
554 371 markom 
                && ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i
555 138 markom 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
556 
              ti[j].in_pass = curpass;
557 
 
558 344 markom 
          debug(9, "%08X %08X %i\n", mask, cur_mask, best_first);
559 138 markom 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
560 
          if (c)
561 
            {
562 344 markom 
              debug(8, "%i> #%X -> %u\n", next - automata, i, cur - automata);
563 138 markom 
              *next = cur - automata;
564 
              cur = c;
565 
            }
566 
          else
567 
            {
568 344 markom 
              debug(8, "%i> N/A\n", next - automata);
569 138 markom 
              *next = 0;
570 
            }
571 
          next++;
572 
        }
573 133 markom 
    }
574 138 markom 
  return cur;
575 
}
576 133 markom 
 
577 138 markom 
/* Returns number of nonzero bits. */
578 
static int
579 
num_ones (unsigned long value)
580 
{
581 
  int c = 0;
582 
  while (value)
583 
    {
584 
      if (value & 1)
585 
        c++;
586 
      value >>= 1;
587 133 markom 
    }
588 138 markom 
  return c;
589 
}
590 133 markom 
 
591 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
592 
   Parameters are stored in ti struct.  */
593 
 
594 
static struct insn_op_struct *
595 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
596 
{
597 
  char *args = opcode->args;
598 
  int i, type;
599 
 
600 
  i = 0;
601 
  type = 0;
602 262 markom 
  /* In case we don't have any parameters, we add dummy read from r0.  */
603 
  if (!(*args)) {
604 263 markom 
    cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
605 262 markom 
    cur->data = 0;
606 355 markom 
    debug(9, "#%08X %08X\n", cur->type, cur->data);
607 262 markom 
    cur++;
608 
    return cur;
609 
  }
610 
 
611 138 markom 
  while (*args != '\0')
612 
    {
613 
      if (*args == 'r')
614 
        {
615 
          args++;
616 
          type |= OPTYPE_REG;
617 133 markom 
        }
618 138 markom 
      else if (isalpha (*args))
619 
        {
620 
          unsigned long arg;
621 
          arg = insn_extract(*args, opcode->encoding);
622 355 markom 
          debug(9, "%s : %08X ------\n", opcode->name, arg);
623 138 markom 
          if (letter_signed (*args))
624 
            {
625 
              type |= OPTYPE_SIG;
626 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
627 
            }
628 
 
629 
          /* Split argument to sequences of consecutive ones.  */
630 
          while (arg)
631 
            {
632 
              int shr = 0;
633 
              unsigned long tmp = arg, mask = 0;
634 
              while ((tmp & 1) == 0)
635 
                {
636 
                  shr++;
637 
                  tmp >>= 1;
638 
                }
639 
              while (tmp & 1)
640 
                {
641 
                  mask++;
642 
                  tmp >>= 1;
643 
                }
644 
              cur->type = type | shr;
645 
              cur->data = mask;
646 
              arg &= ~(((1 << mask) - 1) << shr);
647 355 markom 
              debug(6, "|%08X %08X\n", cur->type, cur->data);
648 138 markom 
              cur++;
649 
            }
650 
          args++;
651 
        }
652 
      else if (*args == '(')
653 
        {
654 
          /* Next param is displacement.  Later we will treat them as one operand.  */
655 
          cur--;
656 
          cur->type = type | cur->type | OPTYPE_DIS | OPTYPE_OP;
657 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
658 138 markom 
          cur++;
659 
          type = 0;
660 
          i++;
661 
          args++;
662 
        }
663 
      else if (*args == OPERAND_DELIM)
664 
        {
665 
          cur--;
666 
          cur->type = type | cur->type | OPTYPE_OP;
667 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
668 138 markom 
          cur++;
669 
          type = 0;
670 
          i++;
671 
          args++;
672 
        }
673 
      else if (*args == '0')
674 
        {
675 
          cur->type = type;
676 
          cur->data = 0;
677 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
678 138 markom 
          cur++;
679 
          type = 0;
680 
          i++;
681 
          args++;
682 
        }
683 
      else if (*args == ')')
684 
        args++;
685 
      else
686 
        {
687 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
688 
          exit (1);
689 
        }
690 133 markom 
    }
691 138 markom 
  cur--;
692 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
693 355 markom 
  debug(9, "#%08X %08X\n", cur->type, cur->data);
694 138 markom 
  cur++;
695 133 markom 
  return cur;
696 
}
697 
 
698 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
699 
 
700 
void
701 
build_automata()
702 
{
703 371 markom 
  int i;
704 133 markom 
  unsigned long *end;
705 138 markom 
  struct insn_op_struct *cur;
706 
 
707 133 markom 
  automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
708 138 markom 
  ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
709 133 markom 
 
710 
  nuncovered = num_opcodes;
711 138 markom 
  printf("Building automata... ");
712 133 markom 
  /* Build temporary information about instructions.  */
713 138 markom 
  for (i = 0; i < num_opcodes; i++)
714 
    {
715 
      unsigned long ones, zeros;
716 
      char *encoding = or32_opcodes[i].encoding;
717 
      ones  = insn_extract('1', encoding);
718 
      zeros = insn_extract('0', encoding);
719 
      ti[i].insn_mask = ones | zeros;
720 
      ti[i].insn = ones;
721 
      ti[i].in_pass = curpass = 0;
722 344 markom 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
723 138 markom 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
724 
    }
725 133 markom 
 
726 
  /* Until all are covered search for best criteria to separate them.  */
727 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
728 
  if (end - automata > MAX_AUTOMATA_SIZE)
729 
    {
730 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
731 
      exit (1);
732 
    }
733 
  printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
734 371 markom 
 
735 138 markom 
  printf("Parsing operands data... ");
736 
  op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
737 
  op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
738 
  cur = op_data;
739 
  for (i = 0; i < num_opcodes; i++)
740 
    {
741 
      op_start[i] = cur;
742 
      cur = parse_params (&or32_opcodes[i], cur);
743 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
744 
        {
745 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
746 
          exit (1);
747 
        }
748 
    }
749 
  printf("done.\n");
750 133 markom 
}
751 
 
752 138 markom 
void destruct_automata ()
753 
{
754 
  free (ti);
755 133 markom 
  free (automata);
756 138 markom 
  free (op_data);
757 
  free (op_start);
758 133 markom 
}
759 
 
760 
/* Decodes instruction and returns instruction index.  */
761 138 markom 
int insn_decode (unsigned int insn)
762 
{
763 133 markom 
  unsigned long *a = automata;
764 138 markom 
  int i;
765 
  while (!(*a & LEAF_FLAG))
766 
    {
767 
      unsigned int first = *a;
768 355 markom 
      debug(9, "%i ", a - automata);
769 138 markom 
      a++;
770 
      i = (insn >> first) & *a;
771 
      a++;
772 
      if (!*(a + i))
773 
        { /* Invalid instruction found?  */
774 355 markom 
          debug(9, "XXX\n", i);
775 138 markom 
          return -1;
776 
        }
777 
      a = automata + *(a + i);
778 
    }
779 
  i = *a & ~LEAF_FLAG;
780 355 markom 
  debug(9, "%i\n", i);
781 138 markom 
  /* Final check - do we have direct match?
782 
     (based on or32_opcodes this should be the only possibility,
783 
     but in case of invalid/missing instruction we must perform a check)  */
784 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
785 
    return i;
786 
  else
787 
    return -1;
788 133 markom 
}
789 371 markom 
 
790 
static char disassembled_str[50];
791 
char *disassembled = &disassembled_str[0];
792 
 
793 
/* Automagically does zero- or sign- extension and also finds correct
794 
   sign bit position if sign extension is correct extension. Which extension
795 
   is proper is figured out from letter description. */
796 
 
797 
unsigned long
798 
extend_imm(unsigned long imm, char l)
799 
{
800 
  unsigned long mask;
801 
  int letter_bits;
802 
 
803 
  /* First truncate all bits above valid range for this letter
804 
     in case it is zero extend. */
805 
  letter_bits = letter_range(l);
806 
  mask = (1 << letter_bits) - 1;
807 
  imm &= mask;
808 
 
809 
  /* Do sign extend if this is the right one. */
810 
  if (letter_signed(l) && (imm >> (letter_bits - 1)))
811 
    imm |= (~mask);
812 
 
813 
  return imm;
814 
}
815 
 
816 
static unsigned long
817 
or32_extract(param_ch, enc_initial, insn)
818 
     char param_ch;
819 
     char *enc_initial;
820 
     unsigned long insn;
821 
{
822 
  char *enc;
823 
  unsigned long ret = 0;
824 
  int opc_pos = 0;
825 
  int param_pos = 0;
826 
 
827 
  for (enc = enc_initial; *enc != '\0'; enc++)
828 
    if (*enc == param_ch)
829 
      {
830 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
831 
          continue;
832 
        else
833 
          param_pos++;
834 
      }
835 
 
836 
#if DEBUG
837 
  printf("or32_extract: %x ", param_pos);
838 
#endif
839 
  opc_pos = 32;
840 
  for (enc = enc_initial; *enc != '\0'; )
841 
    if ((*enc == '0') && (*(enc+1) == 'x'))
842 
      {
843 
        opc_pos -= 4;
844 
        if ((param_ch == '0') || (param_ch == '1'))
845 
          {
846 
            unsigned long tmp = strtol(enc, NULL, 16);
847 
#if DEBUG
848 
            printf(" enc=%s, tmp=%x ", enc, tmp);
849 
#endif
850 
            if (param_ch == '0')
851 
              tmp = 15 - tmp;
852 
            ret |= tmp << opc_pos;
853 
          }
854 
        enc += 3;
855 
      }
856 
    else if ((*enc == '0') || (*enc == '1'))
857 
      {
858 
        opc_pos--;
859 
        if (param_ch == *enc)
860 
          ret |= 1 << opc_pos;
861 
        enc++;
862 
      }
863 
    else if (*enc == param_ch)
864 
      {
865 
        opc_pos--;
866 
        param_pos--;
867 
#if DEBUG
868 
        printf("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
869 
#endif
870 
        if (islower(param_ch))
871 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
872 
        else
873 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
874 
        enc++;
875 
      }
876 
    else if (isalpha(*enc))
877 
      {
878 
        opc_pos--;
879 
        enc++;
880 
      }
881 
    else if (*enc == '-')
882 
      {
883 
        opc_pos--;
884 
        enc++;
885 
      }
886 
    else
887 
      enc++;
888 
 
889 
#if DEBUG
890 
  printf ("ret=%x\n", ret);
891 
#endif
892 
  return ret;
893 
}
894 
 
895 
/* Print register. Used only by print_insn. */
896 
 
897 
static void
898 
or32_print_register (param_ch, encoding, insn)
899 
     char param_ch;
900 
     char *encoding;
901 
     unsigned long insn;
902 
{
903 
  int regnum = or32_extract(param_ch, encoding, insn);
904 
 
905 
   sprintf (disassembled, "%sr%d", disassembled, regnum);
906 
}
907 
 
908 
/* Print immediate. Used only by print_insn. */
909 
 
910 
static void
911 
or32_print_immediate (param_ch, encoding, insn)
912 
     char param_ch;
913 
     char *encoding;
914 
     unsigned long insn;
915 
{
916 
  int imm = or32_extract (param_ch, encoding, insn);
917 
 
918 
  imm = extend_imm(imm, param_ch);
919 
 
920 
  if (letter_signed(param_ch))
921 
    {
922 
      if (imm < 0)
923 
        sprintf (disassembled, "%s%d", disassembled, imm);
924 
      else
925 
        sprintf (disassembled, "%s0x%x", disassembled, imm);
926 
    }
927 
  else
928 
    sprintf (disassembled, "%s%#x", disassembled, imm);
929 
}
930 
 
931 
/* Disassemble one instruction from insn to disassemble.
932 
   Return the size of the instruction.  */
933 
 
934 
int
935 
disassemble_insn (insn)
936 
     unsigned long insn;
937 
{
938 
  int index;
939 
  index = insn_decode (insn);
940 
 
941 
  if (index >= 0)
942 
    {
943 
      struct or32_opcode const *opcode = &or32_opcodes[index];
944 
      char *s;
945 
 
946 
      sprintf(disassembled, "%s ", opcode->name);
947 
      for (s = opcode->args; *s != '\0'; ++s)
948 
        {
949 
          switch (*s)
950 
            {
951 
            case '\0':
952 
              return 4;
953 
 
954 
            case 'r':
955 
              or32_print_register(*++s, opcode->encoding, insn);
956 
              break;
957 
 
958 
            default:
959 
              if (strchr (opcode->encoding, *s))
960 
                or32_print_immediate (*s, opcode->encoding, insn);
961 
              else
962 
                sprintf(disassembled, "%s%c", disassembled, *s);
963 
            }
964 
        }
965 
    }
966 
  else
967 
    {
968 
      /* This used to be %8x for binutils.  */
969 
      sprintf(disassembled, "%s.word 0x%08x", disassembled, insn);
970 
    }
971 
  return insn_len (insn);
972 
}
973 671 markom 
 

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