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[/] [or1k/] [tags/] [nog_patch_36/] [insight/] [opcodes/] [or32.c] - Blame information for rev 703

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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 },
80 676 markom 
{ "l.nop",     "K",            "00 0x5  01--- ----- KKKK KKKK KKKK KKKK", 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*/
83 676 markom 
 
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 
{ "l.jr",      "rB",           "01 0x1  ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY },
221 
{ "l.jalr",    "rB",           "01 0x2  ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY },
222 676 markom 
{ "l.maci",    "rB,I",         "01 0x3  IIIII ----- BBBB BIII IIII IIII", EF(l_mac), 0 },
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 
 
236 676 markom 
{ "l.addi",    "rD,rA,I",      "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), OR32_W_FLAG },
237 133 markom 
{ "l.addic",   "rD,rA,I",      "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0 },
238 676 markom 
{ "l.andi",    "rD,rA,K",      "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), OR32_W_FLAG },
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 },
242 676 markom 
{ "l.mfspr",   "rD,rA,K",      "10 0xD  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 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 
 
259 676 markom 
{ "l.mtspr",   "rA,rB,K",      "11 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0 },
260 
{ "l.mac",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x1", EF(l_mac), 0 }, /*MM*/
261 
{ "l.msb",     "rA,rB",        "11 0x1  ----- AAAAA BBBB B--- ---- 0x2", EF(l_msb), 0 }, /*MM*/
262 
 
263 133 markom 
{ "l.sd",      "I(rA),rB",     "11 0x4  IIIII AAAAA BBBB BIII IIII IIII", EFI, 0 },
264 
{ "l.sw",      "I(rA),rB",     "11 0x5  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sw), 0 },
265 
{ "l.sb",      "I(rA),rB",     "11 0x6  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sb), 0 },
266 
{ "l.sh",      "I(rA),rB",     "11 0x7  IIIII AAAAA BBBB BIII IIII IIII", EF(l_sh), 0 },
267 
 
268 676 markom 
{ "l.add",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0", EF(l_add), OR32_W_FLAG },
269 133 markom 
{ "l.addc",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1", EFI, 0 },
270 
{ "l.sub",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2", EF(l_sub), 0 },
271 676 markom 
{ "l.and",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3", EF(l_and), OR32_W_FLAG },
272 133 markom 
{ "l.or",      "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4", EF(l_or), 0 },
273 
{ "l.xor",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5", EF(l_xor), 0 },
274 
{ "l.mul",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6", EF(l_mul), 0 },
275 676 markom 
 
276 133 markom 
{ "l.sll",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8", EF(l_sll), 0 },
277 
{ "l.srl",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8", EF(l_srl), 0 },
278 
{ "l.sra",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8", EF(l_sra), 0 },
279 
{ "l.ror",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8", EFI, 0 },
280 
{ "l.div",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x9", EF(l_div), 0 },
281 
{ "l.divu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xA", EF(l_divu), 0 },
282 
{ "l.mulu",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB", EFI, 0 },
283 676 markom 
{ "l.extbs",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xC", EF(l_extbs), 0 },
284 
{ "l.exths",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xC", EF(l_exths), 0 },
285 
{ "l.extws",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 00-- 0xD", EF(l_extws), 0 },
286 
{ "l.extbz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 11-- 0xC", EF(l_extbz), 0 },
287 
{ "l.exthz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 10-- 0xC", EF(l_exthz), 0 },
288 
{ "l.extwz",   "rD,rA,rB",     "11 0x8  DDDDD AAAAA ---- --00 01-- 0xD", EF(l_extwz), 0 },
289 
{ "l.cmov",    "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE", EF(l_cmov), OR32_R_FLAG },
290 133 markom 
{ "l.ff1",     "rD,rA,rB",     "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xF", EFI, 0 },
291 
 
292 138 markom 
{ "l.sfeq",    "rA,rB",        "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG },
293 
{ "l.sfne",    "rA,rB",        "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG },
294 
{ "l.sfgtu",   "rA,rB",        "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG },
295 
{ "l.sfgeu",   "rA,rB",        "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG },
296 
{ "l.sfltu",   "rA,rB",        "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG },
297 
{ "l.sfleu",   "rA,rB",        "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG },
298 
{ "l.sfgts",   "rA,rB",        "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG },
299 
{ "l.sfges",   "rA,rB",        "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG },
300 
{ "l.sflts",   "rA,rB",        "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG },
301 
{ "l.sfles",   "rA,rB",        "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG },
302 133 markom 
 
303 
{ "l.cust5",   "",             "11 0xC  ----- ----- ---- ---- ---- ----", EFI, 0 },
304 
{ "l.cust6",   "",             "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0 },
305 
{ "l.cust7",   "",             "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0 },
306 
{ "l.cust8",   "",             "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0 },
307 
 
308 221 markom 
/* This section should not be defined in or1ksim, since it contains duplicates,
309 
   which would cause machine builder to complain.  */
310 374 simons 
#ifdef HAS_CUST
311 221 markom 
{ "l.cust5_1",   "rD",         "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
312 
{ "l.cust5_2",   "rD,rA"   ,   "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
313 
{ "l.cust5_3",   "rD,rA,rB",   "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
314 
 
315 
{ "l.cust6_1",   "rD",         "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
316 
{ "l.cust6_2",   "rD,rA"   ,   "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
317 
{ "l.cust6_3",   "rD,rA,rB",   "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
318 
 
319 
{ "l.cust7_1",   "rD",         "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
320 
{ "l.cust7_2",   "rD,rA"   ,   "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
321 
{ "l.cust7_3",   "rD,rA,rB",   "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
322 
 
323 
{ "l.cust8_1",   "rD",         "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI, 0 },
324 
{ "l.cust8_2",   "rD,rA"   ,   "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI, 0 },
325 
{ "l.cust8_3",   "rD,rA,rB",   "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0 },
326 
#endif
327 
 
328 133 markom 
{ "", "", "", EFI, 0 }           /* Dummy entry, not included in num_opcodes.  This
329 
                           lets code examine entry i+1 without checking
330 
                           if we've run off the end of the table.  */
331 
};
332 
 
333 
#undef EFI
334 
#undef EFN
335 
#undef EF
336 
 
337 
/* **INDENT-ON** */
338 
 
339 371 markom 
/* Define dummy, if debug is not defined.  */
340 
#if !defined HAS_DEBUG
341 
void debug(int level, const char *format, ...)
342 
{
343 
  /* Just to get rid of warnings.  */
344 
  format = level = 0;
345 
}
346 
#endif
347 133 markom 
 
348 371 markom 
CONST int num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
349 
 
350 138 markom 
/* Calculates instruction length in bytes. Always 4 for OR32. */
351 
int
352 
insn_len(int insn_index)
353 133 markom 
{
354 
  insn_index = 0; /* Just to get rid that warning.  */
355 
  return 4;
356 
}
357 
 
358 
/* Is individual insn's operand signed or unsigned? */
359 138 markom 
int
360 
letter_signed(char l)
361 133 markom 
{
362 
  CONST struct or32_letter *pletter;
363 
 
364 
  for(pletter = or32_letters; pletter->letter != '\0'; pletter++)
365 
    if (pletter->letter == l)
366 
      return pletter->sign;
367 
 
368 
  printf("letter_signed(%c): Unknown letter.\n", l);
369 
  return 0;
370 
}
371 
 
372 703 markom 
/* Simple cache for letter ranges */
373 
static int range_cache[256] = {0};
374 
 
375 133 markom 
/* Number of letters in the individual lettered operand. */
376 138 markom 
int
377 
letter_range(char l)
378 133 markom 
{
379 
  CONST struct or32_opcode *pinsn;
380 
  char *enc;
381 
  int range = 0;
382 703 markom 
 
383 
  /* Is value cached? */
384 
  if (range = range_cache[(unsigned char)l]) return range;
385 133 markom 
 
386 138 markom 
  for(pinsn = or32_opcodes; strlen(pinsn->name); pinsn++)
387 
    {
388 
      if (strchr(pinsn->encoding,l))
389 
        {
390 
          for (enc = pinsn->encoding; *enc != '\0'; enc++)
391 
            if ((*enc == '0') && (*(enc+1) == 'x'))
392 
              enc += 2;
393 
            else if (*enc == l)
394 
              range++;
395 703 markom 
          return range_cache[(unsigned char)l] = range;
396 133 markom 
        }
397 
    }
398 703 markom 
 
399 133 markom 
  printf("\nABORT: letter_range(%c): Never used letter.\n", l);
400 
  exit(1);
401 
}
402 
 
403 
/* MM: Returns index of given instruction name.  */
404 138 markom 
int
405 
insn_index (char *insn)
406 
{
407 133 markom 
  int i, found = -1;
408 371 markom 
  for (i = 0; i < num_opcodes; i++)
409 138 markom 
    if (!strcmp (or32_opcodes[i].name, insn))
410 
      {
411 
        found = i;
412 
        break;
413 
      }
414 133 markom 
  return found;
415 
}
416 
 
417 138 markom 
CONST char *insn_name(int index)
418 
{
419 371 markom 
  if (index >= 0 && index < num_opcodes)
420 133 markom 
    return or32_opcodes[index].name;
421 
  else
422 
    return "???";
423 
}
424 
 
425 138 markom 
void l_none()
426 
{
427 133 markom 
}
428 
 
429 
 
430 
/*** Finite automata for instruction decoding building code ***/
431 
 
432 
/* Find simbols in encoding.  */
433 
static unsigned long
434 
insn_extract(param_ch, enc_initial)
435 
     char param_ch;
436 
     char *enc_initial;
437 
{
438 
  char *enc;
439 
  unsigned long ret = 0;
440 
  unsigned opc_pos = 32;
441 
  for (enc = enc_initial; *enc != '\0'; )
442 
    if ((*enc == '0') && (*(enc+1) == 'x'))
443 
      {
444 
        unsigned long tmp = strtol(enc+2, NULL, 16);
445 
        opc_pos -= 4;
446 138 markom 
        if (param_ch == '0' || param_ch == '1')
447 
          {
448 
            if (param_ch == '0')
449 
              tmp = 15 - tmp;
450 
            ret |= tmp << opc_pos;
451 
          }
452 133 markom 
        enc += 3;
453 
      }
454 138 markom 
    else
455 
      {
456 
        if (*enc == '0' || *enc == '1' || *enc == '-' || isalpha(*enc) )
457 
          {
458 
            opc_pos--;
459 
            if (param_ch == *enc)
460 
              ret |= 1 << opc_pos;
461 
          }
462 
        enc++;
463 133 markom 
      }
464 
  return ret;
465 
}
466 
 
467 138 markom 
#define MAX_AUTOMATA_SIZE (1200)
468 
#define MAX_OP_TABLE_SIZE (1200)
469 133 markom 
#define LEAF_FLAG         (0x80000000)
470 
#define MAX_LEN           (8)
471 
 
472 
#ifndef MIN
473 
# define MIN(x,y)          ((x) < (y) ? (x) : (y))
474 
#endif
475 
 
476 
unsigned long *automata;
477 
int nuncovered;
478 
int curpass = 0;
479 
 
480 138 markom 
/* MM: Struct that hold runtime build information about instructions.  */
481 
struct temp_insn_struct
482 
{
483 
  unsigned long insn;
484 
  unsigned long insn_mask;
485 
  int in_pass;
486 
} *ti;
487 
 
488 
struct insn_op_struct *op_data, **op_start;
489 
 
490 
/* Recursive utility function used to find best match and to build automata.  */
491 
 
492 
static unsigned long *
493 
cover_insn (unsigned long *cur, int pass, unsigned int mask)
494 
{
495 133 markom 
  int best_first = 0, best_len = 0, i, last_match = -1, ninstr = 0;
496 
  unsigned long cur_mask = mask;
497 
  unsigned long *next;
498 
 
499 
  for (i = 0; i < num_opcodes; i++)
500 138 markom 
    if (ti[i].in_pass == pass)
501 
      {
502 
        cur_mask &= ti[i].insn_mask;
503 
        ninstr++;
504 
        last_match = i;
505 
      }
506 
 
507 344 markom 
  debug(8, "%08X %08X\n", mask, cur_mask);
508 138 markom 
  if (ninstr == 0)
509 
    return 0;
510 
  if (ninstr == 1)
511 
    {
512 
      /* Leaf holds instruction index. */
513 344 markom 
      debug(8, "%i>I%i %s\n", cur - automata, last_match, or32_opcodes[last_match].name);
514 138 markom 
      *cur = LEAF_FLAG | last_match;
515 
      cur++;
516 
      nuncovered--;
517 
    } else {
518 
      /* Find longest match.  */
519 
      for (i = 0; i < 32; i++)
520 
        {
521 
          int len;
522 
          for (len = best_len + 1; len < MIN(MAX_LEN, 33 - i); len++)
523 
            {
524 
              unsigned long m = (1UL << ((unsigned long)len)) - 1;
525 344 markom 
              debug(9, " (%i(%08X & %08X>>%i = %08X, %08X)",len,m, cur_mask, i, (cur_mask >> (unsigned)i), (cur_mask >> (unsigned)i) & m);
526 138 markom 
              if ((m & (cur_mask >> (unsigned)i)) == m)
527 
                {
528 
                  best_len = len;
529 
                  best_first = i;
530 344 markom 
                  debug(9, "!");
531 138 markom 
                }
532 
              else
533 
                break;
534 
            }
535 
        }
536 344 markom 
      debug(9, "\n");
537 138 markom 
      if (!best_len)
538 
        {
539 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
540 
          for (i = 0; i < num_opcodes; i++)
541 
            if (ti[i].in_pass == pass)
542 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
543 
 
544 
          fprintf (stderr, "\n");
545 
          exit (1);
546 
        }
547 344 markom 
      debug(8, "%i> #### %i << %i (%i) ####\n", cur - automata, best_len, best_first, ninstr);
548 138 markom 
      *cur = best_first;
549 
      cur++;
550 
      *cur = (1 << best_len) - 1;
551 
      cur++;
552 
      next = cur;
553 
      /* Allocate space for pointers.  */
554 
      cur += 1 << best_len;
555 
      cur_mask = (1 << (unsigned long)best_len) - 1;
556 
 
557 
      for (i = 0; i < (1 << (unsigned long)best_len); i++)
558 
        {
559 
          int j;
560 
          unsigned long *c;
561 
          curpass++;
562 
          for (j = 0; j < num_opcodes; j++)
563 
            if (ti[j].in_pass == pass
564 371 markom 
                && ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i
565 138 markom 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
566 
              ti[j].in_pass = curpass;
567 
 
568 344 markom 
          debug(9, "%08X %08X %i\n", mask, cur_mask, best_first);
569 138 markom 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
570 
          if (c)
571 
            {
572 344 markom 
              debug(8, "%i> #%X -> %u\n", next - automata, i, cur - automata);
573 138 markom 
              *next = cur - automata;
574 
              cur = c;
575 
            }
576 
          else
577 
            {
578 344 markom 
              debug(8, "%i> N/A\n", next - automata);
579 138 markom 
              *next = 0;
580 
            }
581 
          next++;
582 
        }
583 133 markom 
    }
584 138 markom 
  return cur;
585 
}
586 133 markom 
 
587 138 markom 
/* Returns number of nonzero bits. */
588 
static int
589 
num_ones (unsigned long value)
590 
{
591 
  int c = 0;
592 
  while (value)
593 
    {
594 
      if (value & 1)
595 
        c++;
596 
      value >>= 1;
597 133 markom 
    }
598 138 markom 
  return c;
599 
}
600 133 markom 
 
601 138 markom 
/* Utility function, which converts parameters from or32_opcode format to more binary form.
602 
   Parameters are stored in ti struct.  */
603 
 
604 
static struct insn_op_struct *
605 
parse_params (CONST struct or32_opcode *opcode, struct insn_op_struct *cur)
606 
{
607 
  char *args = opcode->args;
608 
  int i, type;
609 
 
610 
  i = 0;
611 
  type = 0;
612 262 markom 
  /* In case we don't have any parameters, we add dummy read from r0.  */
613 
  if (!(*args)) {
614 263 markom 
    cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
615 262 markom 
    cur->data = 0;
616 355 markom 
    debug(9, "#%08X %08X\n", cur->type, cur->data);
617 262 markom 
    cur++;
618 
    return cur;
619 
  }
620 
 
621 138 markom 
  while (*args != '\0')
622 
    {
623 
      if (*args == 'r')
624 
        {
625 
          args++;
626 
          type |= OPTYPE_REG;
627 133 markom 
        }
628 138 markom 
      else if (isalpha (*args))
629 
        {
630 
          unsigned long arg;
631 
          arg = insn_extract(*args, opcode->encoding);
632 355 markom 
          debug(9, "%s : %08X ------\n", opcode->name, arg);
633 138 markom 
          if (letter_signed (*args))
634 
            {
635 
              type |= OPTYPE_SIG;
636 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
637 
            }
638 
 
639 
          /* Split argument to sequences of consecutive ones.  */
640 
          while (arg)
641 
            {
642 
              int shr = 0;
643 
              unsigned long tmp = arg, mask = 0;
644 
              while ((tmp & 1) == 0)
645 
                {
646 
                  shr++;
647 
                  tmp >>= 1;
648 
                }
649 
              while (tmp & 1)
650 
                {
651 
                  mask++;
652 
                  tmp >>= 1;
653 
                }
654 
              cur->type = type | shr;
655 
              cur->data = mask;
656 
              arg &= ~(((1 << mask) - 1) << shr);
657 355 markom 
              debug(6, "|%08X %08X\n", cur->type, cur->data);
658 138 markom 
              cur++;
659 
            }
660 
          args++;
661 
        }
662 
      else if (*args == '(')
663 
        {
664 
          /* Next param is displacement.  Later we will treat them as one operand.  */
665 
          cur--;
666 
          cur->type = type | cur->type | OPTYPE_DIS | 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 == OPERAND_DELIM)
674 
        {
675 
          cur--;
676 
          cur->type = type | cur->type | OPTYPE_OP;
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 == '0')
684 
        {
685 
          cur->type = type;
686 
          cur->data = 0;
687 355 markom 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
688 138 markom 
          cur++;
689 
          type = 0;
690 
          i++;
691 
          args++;
692 
        }
693 
      else if (*args == ')')
694 
        args++;
695 
      else
696 
        {
697 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
698 
          exit (1);
699 
        }
700 133 markom 
    }
701 138 markom 
  cur--;
702 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
703 355 markom 
  debug(9, "#%08X %08X\n", cur->type, cur->data);
704 138 markom 
  cur++;
705 133 markom 
  return cur;
706 
}
707 
 
708 138 markom 
/* Constructs new automata based on or32_opcodes array.  */
709 
 
710 
void
711 
build_automata()
712 
{
713 371 markom 
  int i;
714 133 markom 
  unsigned long *end;
715 138 markom 
  struct insn_op_struct *cur;
716 
 
717 133 markom 
  automata = (unsigned long *) malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
718 138 markom 
  ti = (struct temp_insn_struct *) malloc (sizeof (struct temp_insn_struct) * num_opcodes);
719 133 markom 
 
720 
  nuncovered = num_opcodes;
721 138 markom 
  printf("Building automata... ");
722 133 markom 
  /* Build temporary information about instructions.  */
723 138 markom 
  for (i = 0; i < num_opcodes; i++)
724 
    {
725 
      unsigned long ones, zeros;
726 
      char *encoding = or32_opcodes[i].encoding;
727 
      ones  = insn_extract('1', encoding);
728 
      zeros = insn_extract('0', encoding);
729 
      ti[i].insn_mask = ones | zeros;
730 
      ti[i].insn = ones;
731 
      ti[i].in_pass = curpass = 0;
732 344 markom 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
733 138 markom 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
734 
    }
735 133 markom 
 
736 
  /* Until all are covered search for best criteria to separate them.  */
737 138 markom 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
738 
  if (end - automata > MAX_AUTOMATA_SIZE)
739 
    {
740 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
741 
      exit (1);
742 
    }
743 
  printf("done, num uncovered: %i/%i.\n", nuncovered, num_opcodes);
744 371 markom 
 
745 138 markom 
  printf("Parsing operands data... ");
746 
  op_data = (struct insn_op_struct *) malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
747 
  op_start = (struct insn_op_struct **) malloc (num_opcodes * sizeof (struct insn_op_struct *));
748 
  cur = op_data;
749 
  for (i = 0; i < num_opcodes; i++)
750 
    {
751 
      op_start[i] = cur;
752 
      cur = parse_params (&or32_opcodes[i], cur);
753 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
754 
        {
755 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
756 
          exit (1);
757 
        }
758 
    }
759 
  printf("done.\n");
760 133 markom 
}
761 
 
762 138 markom 
void destruct_automata ()
763 
{
764 
  free (ti);
765 133 markom 
  free (automata);
766 138 markom 
  free (op_data);
767 
  free (op_start);
768 133 markom 
}
769 
 
770 
/* Decodes instruction and returns instruction index.  */
771 138 markom 
int insn_decode (unsigned int insn)
772 
{
773 133 markom 
  unsigned long *a = automata;
774 138 markom 
  int i;
775 
  while (!(*a & LEAF_FLAG))
776 
    {
777 
      unsigned int first = *a;
778 703 markom 
      //debug(9, "%i ", a - automata);
779 138 markom 
      a++;
780 
      i = (insn >> first) & *a;
781 
      a++;
782 
      if (!*(a + i))
783 
        { /* Invalid instruction found?  */
784 703 markom 
          //debug(9, "XXX\n", i);
785 138 markom 
          return -1;
786 
        }
787 
      a = automata + *(a + i);
788 
    }
789 
  i = *a & ~LEAF_FLAG;
790 703 markom 
  //debug(9, "%i\n", i);
791 138 markom 
  /* Final check - do we have direct match?
792 
     (based on or32_opcodes this should be the only possibility,
793 
     but in case of invalid/missing instruction we must perform a check)  */
794 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
795 
    return i;
796 
  else
797 
    return -1;
798 133 markom 
}
799 371 markom 
 
800 
static char disassembled_str[50];
801 
char *disassembled = &disassembled_str[0];
802 
 
803 
/* Automagically does zero- or sign- extension and also finds correct
804 
   sign bit position if sign extension is correct extension. Which extension
805 
   is proper is figured out from letter description. */
806 
 
807 703 markom 
static unsigned long
808 371 markom 
extend_imm(unsigned long imm, char l)
809 
{
810 
  unsigned long mask;
811 
  int letter_bits;
812 
 
813 
  /* First truncate all bits above valid range for this letter
814 
     in case it is zero extend. */
815 
  letter_bits = letter_range(l);
816 
  mask = (1 << letter_bits) - 1;
817 
  imm &= mask;
818 
 
819 
  /* Do sign extend if this is the right one. */
820 
  if (letter_signed(l) && (imm >> (letter_bits - 1)))
821 
    imm |= (~mask);
822 
 
823 
  return imm;
824 
}
825 
 
826 
static unsigned long
827 
or32_extract(param_ch, enc_initial, insn)
828 
     char param_ch;
829 
     char *enc_initial;
830 
     unsigned long insn;
831 
{
832 
  char *enc;
833 
  unsigned long ret = 0;
834 
  int opc_pos = 0;
835 
  int param_pos = 0;
836 
 
837 
  for (enc = enc_initial; *enc != '\0'; enc++)
838 
    if (*enc == param_ch)
839 
      {
840 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
841 
          continue;
842 
        else
843 
          param_pos++;
844 
      }
845 
 
846 
#if DEBUG
847 
  printf("or32_extract: %x ", param_pos);
848 
#endif
849 
  opc_pos = 32;
850 
  for (enc = enc_initial; *enc != '\0'; )
851 
    if ((*enc == '0') && (*(enc+1) == 'x'))
852 
      {
853 
        opc_pos -= 4;
854 
        if ((param_ch == '0') || (param_ch == '1'))
855 
          {
856 
            unsigned long tmp = strtol(enc, NULL, 16);
857 
#if DEBUG
858 
            printf(" enc=%s, tmp=%x ", enc, tmp);
859 
#endif
860 
            if (param_ch == '0')
861 
              tmp = 15 - tmp;
862 
            ret |= tmp << opc_pos;
863 
          }
864 
        enc += 3;
865 
      }
866 
    else if ((*enc == '0') || (*enc == '1'))
867 
      {
868 
        opc_pos--;
869 
        if (param_ch == *enc)
870 
          ret |= 1 << opc_pos;
871 
        enc++;
872 
      }
873 
    else if (*enc == param_ch)
874 
      {
875 
        opc_pos--;
876 
        param_pos--;
877 
#if DEBUG
878 
        printf("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
879 
#endif
880 
        if (islower(param_ch))
881 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
882 
        else
883 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
884 
        enc++;
885 
      }
886 
    else if (isalpha(*enc))
887 
      {
888 
        opc_pos--;
889 
        enc++;
890 
      }
891 
    else if (*enc == '-')
892 
      {
893 
        opc_pos--;
894 
        enc++;
895 
      }
896 
    else
897 
      enc++;
898 
 
899 
#if DEBUG
900 
  printf ("ret=%x\n", ret);
901 
#endif
902 
  return ret;
903 
}
904 
 
905 
/* Print register. Used only by print_insn. */
906 
 
907 703 markom 
static char *
908 
or32_print_register (dest, param_ch, encoding, insn)
909 
     char *dest;
910 371 markom 
     char param_ch;
911 
     char *encoding;
912 
     unsigned long insn;
913 
{
914 
  int regnum = or32_extract(param_ch, encoding, insn);
915 
 
916 703 markom 
  sprintf (dest, "r%d", regnum);
917 
  while (*dest) dest++;
918 
  return dest;
919 371 markom 
}
920 
 
921 
/* Print immediate. Used only by print_insn. */
922 
 
923 703 markom 
static char *
924 
or32_print_immediate (dest, param_ch, encoding, insn)
925 
     char *dest;
926 371 markom 
     char param_ch;
927 
     char *encoding;
928 
     unsigned long insn;
929 
{
930 
  int imm = or32_extract (param_ch, encoding, insn);
931 
 
932 
  imm = extend_imm(imm, param_ch);
933 
 
934 
  if (letter_signed(param_ch))
935 
    {
936 
      if (imm < 0)
937 703 markom 
        sprintf (dest, "%d", imm);
938 371 markom 
      else
939 703 markom 
        sprintf (dest, "0x%x", imm);
940 371 markom 
    }
941 
  else
942 703 markom 
    sprintf (dest, "%#x", imm);
943 
  while (*dest) dest++;
944 
  return dest;
945 371 markom 
}
946 
 
947 
/* Disassemble one instruction from insn to disassemble.
948 
   Return the size of the instruction.  */
949 
 
950 
int
951 
disassemble_insn (insn)
952 
     unsigned long insn;
953 
{
954 
  int index;
955 703 markom 
  return disassemble_index (insn, insn_decode (insn));
956 
}
957 371 markom 
 
958 703 markom 
/* Disassemble one instruction from insn index.
959 
   Return the size of the instruction.  */
960 
 
961 
int
962 
disassemble_index (insn, index)
963 
     unsigned long insn;
964 
     int index;
965 
{
966 
  char *dest = disassembled;
967 371 markom 
  if (index >= 0)
968 
    {
969 
      struct or32_opcode const *opcode = &or32_opcodes[index];
970 
      char *s;
971 
 
972 703 markom 
      strcpy (dest, opcode->name);
973 
      while (*dest) dest++;
974 
      *dest++ = ' ';
975 
      *dest = 0;
976 
 
977 371 markom 
      for (s = opcode->args; *s != '\0'; ++s)
978 
        {
979 
          switch (*s)
980 
            {
981 
            case '\0':
982 703 markom 
              return insn_len (insn);
983 371 markom 
 
984 
            case 'r':
985 703 markom 
              dest = or32_print_register(dest, *++s, opcode->encoding, insn);
986 371 markom 
              break;
987 
 
988 
            default:
989 
              if (strchr (opcode->encoding, *s))
990 703 markom 
                dest = or32_print_immediate (dest, *s, opcode->encoding, insn);
991 
              else {
992 
                *dest++ = *s;
993 
                *dest = 0;
994 
              }
995 371 markom 
            }
996 
        }
997 
    }
998 
  else
999 
    {
1000 
      /* This used to be %8x for binutils.  */
1001 703 markom 
      sprintf(dest, ".word 0x%08x", insn);
1002 
      while (*dest) dest++;
1003 371 markom 
    }
1004 
  return insn_len (insn);
1005 
}

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