OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [tags/] [nog_patch_36/] [insight/] [opcodes/] [or32.c] - Blame information for rev 801

Go to most recent revision | Details | Compare with Previous | View Log

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

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.