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Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [opcodes/] [or32-opc.c] - Blame information for rev 156

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1 38 julius 
/* Table of opcodes for the OpenRISC 1000 ISA.
2 
   Copyright 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
3 
   Contributed by Damjan Lampret (lampret@opencores.org).
4 
 
5 
   This file is part of the GNU opcodes library.
6 
 
7 
   This library 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 3, or (at your option)
10 
   any later version.
11 
 
12 
   It is distributed in the hope that it will be useful, but WITHOUT
13 
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
15 
   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., 51 Franklin Street - Fifth Floor, Boston,
20 
   MA 02110-1301, USA.  */
21 
 
22 
/* We treat all letters the same in encode/decode routines so
23 
   we need to assign some characteristics to them like signess etc.  */
24 
#include <string.h>
25 
#include <stdio.h>
26 
#include <stdlib.h>
27 
#include "safe-ctype.h"
28 
#include "ansidecl.h"
29 
#ifdef HAVE_CONFIG_H
30 
# include "config.h"
31 
#endif
32 
#ifdef HAS_EXECUTION
33 
# ifdef HAVE_INTTYPES_H
34 
#  include <inttypes.h> /* ...but to get arch.h we need uint{8,16,32}_t... */
35 
# endif
36 
# include "port.h"
37 
# include "arch.h" /* ...but to get abstract.h, we need oraddr_t... */
38 
# include "abstract.h" /* To get struct iqueue_entry... */
39 
# include "debug.h" /* To get debug() */
40 
#endif
41 
#include "opcode/or32.h"
42 
 
43 
const struct or32_letter or32_letters[] =
44 
{
45 
  { 'A', NUM_UNSIGNED },
46 
  { 'B', NUM_UNSIGNED },
47 
  { 'D', NUM_UNSIGNED },
48 
  { 'I', NUM_SIGNED },
49 
  { 'K', NUM_UNSIGNED },
50 
  { 'L', NUM_UNSIGNED },
51 
  { 'N', NUM_SIGNED },
52 
  { '0', NUM_UNSIGNED },
53 
  { '\0', 0 }     /* Dummy entry.  */
54 
};
55 
 
56 
/* Opcode encoding:
57 
   machine[31:30]: first two bits of opcode
58 
                   00 - neither of source operands is GPR
59 
                   01 - second source operand is GPR (rB)
60 
                   10 - first source operand is GPR (rA)
61 
                   11 - both source operands are GPRs (rA and rB)
62 
   machine[29:26]: next four bits of opcode
63 
   machine[25:00]: instruction operands (specific to individual instruction)
64 
 
65 
  Recommendation: irrelevant instruction bits should be set with a value of
66 
  bits in same positions of instruction preceding current instruction in the
67 
  code (when assembling).  */
68 
 
69 
#ifdef HAS_EXECUTION
70 
# if SIMPLE_EXECUTION
71 
#  define EFN &l_none
72 
#  define EF(func) &(func)
73 
#  define EFI &l_invalid
74 
# elif COMPLEX_EXECUTION
75 
#  define EFN "l_none"
76 
#  define EFI "l_invalid"
77 
#  ifdef __GNUC__
78 
#   define EF(func) #func
79 
#  else
80 
#   define EF(func) "func"
81 
#  endif
82 
# else /* DYNAMIC_EXECUTION */
83 
#  define EFN &l_none
84 
#  define EF(func) &(gen_ ##func)
85 
#  define EFI &gen_l_invalid
86 
# endif
87 
#else /* HAS_EXECUTION */
88 
# define EFN &l_none
89 
# define EF(func) EFN
90 
# define EFI EFN
91 
#endif /* HAS_EXECUTION */
92 
 
93 
const struct or32_opcode or32_opcodes[] = {
94 
  { "l.j",        "N",           "00 0x0  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_j), OR32_IF_DELAY, it_jump },
95 
  { "l.jal",      "N",           "00 0x1  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_jal), OR32_IF_DELAY, it_jump },
96 
  { "l.bnf",      "N",           "00 0x3  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bnf), OR32_IF_DELAY | OR32_R_FLAG, it_branch },
97 
  { "l.bf",       "N",           "00 0x4  NNNNN NNNNN NNNN NNNN NNNN NNNN", EF(l_bf), OR32_IF_DELAY | OR32_R_FLAG, it_branch },
98 
  { "l.nop",      "K",           "00 0x5  01--- ----- KKKK KKKK KKKK KKKK", EF(l_nop), 0, it_nop },
99 
  { "l.movhi",    "rD,K",        "00 0x6  DDDDD ----0 KKKK KKKK KKKK KKKK", EF(l_movhi), 0, it_movimm },
100 
  { "l.macrc",    "rD",          "00 0x6  DDDDD ----1 0000 0000 0000 0000", EF(l_macrc), 0, it_mac },
101 
  { "l.sys",      "K",           "00 0x8  00000 00000 KKKK KKKK KKKK KKKK", EF(l_sys), 0, it_exception },
102 
  { "l.trap",     "K",           "00 0x8  01000 00000 KKKK KKKK KKKK KKKK", EF(l_trap), 0, it_exception },
103 
  { "l.msync",    "",            "00 0x8  10000 00000 0000 0000 0000 0000", EFN, 0, it_unknown },
104 
  { "l.psync",    "",            "00 0x8  10100 00000 0000 0000 0000 0000", EFN, 0, it_unknown },
105 
  { "l.csync",    "",            "00 0x8  11000 00000 0000 0000 0000 0000", EFN, 0, it_unknown },
106 
  { "l.rfe",      "",            "00 0x9  ----- ----- ---- ---- ---- ----", EF(l_rfe), 0, it_exception },
107 
  { "lv.all_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x0",   EFI, 0, it_unknown },
108 
  { "lv.all_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x1",   EFI, 0, it_unknown },
109 
  { "lv.all_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x2",   EFI, 0, it_unknown },
110 
  { "lv.all_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x3",   EFI, 0, it_unknown },
111 
  { "lv.all_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x4",   EFI, 0, it_unknown },
112 
  { "lv.all_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x5",   EFI, 0, it_unknown },
113 
  { "lv.all_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x6",   EFI, 0, it_unknown },
114 
  { "lv.all_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x7",   EFI, 0, it_unknown },
115 
  { "lv.all_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x8",   EFI, 0, it_unknown },
116 
  { "lv.all_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0x9",   EFI, 0, it_unknown },
117 
  { "lv.all_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xA",   EFI, 0, it_unknown },
118 
  { "lv.all_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x1 0xB",   EFI, 0, it_unknown },
119 
  { "lv.any_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x0",   EFI, 0, it_unknown },
120 
  { "lv.any_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x1",   EFI, 0, it_unknown },
121 
  { "lv.any_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x2",   EFI, 0, it_unknown },
122 
  { "lv.any_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x3",   EFI, 0, it_unknown },
123 
  { "lv.any_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x4",   EFI, 0, it_unknown },
124 
  { "lv.any_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x5",   EFI, 0, it_unknown },
125 
  { "lv.any_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x6",   EFI, 0, it_unknown },
126 
  { "lv.any_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x7",   EFI, 0, it_unknown },
127 
  { "lv.any_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x8",   EFI, 0, it_unknown },
128 
  { "lv.any_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0x9",   EFI, 0, it_unknown },
129 
  { "lv.any_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xA",   EFI, 0, it_unknown },
130 
  { "lv.any_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x2 0xB",   EFI, 0, it_unknown },
131 
  { "lv.add.b",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x0",   EFI, 0, it_unknown },
132 
  { "lv.add.h",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x1",   EFI, 0, it_unknown },
133 
  { "lv.adds.b",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x2",   EFI, 0, it_unknown },
134 
  { "lv.adds.h",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x3",   EFI, 0, it_unknown },
135 
  { "lv.addu.b",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x4",   EFI, 0, it_unknown },
136 
  { "lv.addu.h",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x5",   EFI, 0, it_unknown },
137 
  { "lv.addus.b", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x6",   EFI, 0, it_unknown },
138 
  { "lv.addus.h", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x7",   EFI, 0, it_unknown },
139 
  { "lv.and",     "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x8",   EFI, 0, it_unknown },
140 
  { "lv.avg.b",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0x9",   EFI, 0, it_unknown },
141 
  { "lv.avg.h",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x3 0xA",   EFI, 0, it_unknown },
142 
  { "lv.cmp_eq.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x0",   EFI, 0, it_unknown },
143 
  { "lv.cmp_eq.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x1",   EFI, 0, it_unknown },
144 
  { "lv.cmp_ge.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x2",   EFI, 0, it_unknown },
145 
  { "lv.cmp_ge.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x3",   EFI, 0, it_unknown },
146 
  { "lv.cmp_gt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x4",   EFI, 0, it_unknown },
147 
  { "lv.cmp_gt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x5",   EFI, 0, it_unknown },
148 
  { "lv.cmp_le.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x6",   EFI, 0, it_unknown },
149 
  { "lv.cmp_le.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x7",   EFI, 0, it_unknown },
150 
  { "lv.cmp_lt.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x8",   EFI, 0, it_unknown },
151 
  { "lv.cmp_lt.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0x9",   EFI, 0, it_unknown },
152 
  { "lv.cmp_ne.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xA",   EFI, 0, it_unknown },
153 
  { "lv.cmp_ne.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x4 0xB",   EFI, 0, it_unknown },
154 
  { "lv.madds.h", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x4",   EFI, 0, it_unknown },
155 
  { "lv.max.b",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x5",   EFI, 0, it_unknown },
156 
  { "lv.max.h",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x6",   EFI, 0, it_unknown },
157 
  { "lv.merge.b", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x7",   EFI, 0, it_unknown },
158 
  { "lv.merge.h", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x8",   EFI, 0, it_unknown },
159 
  { "lv.min.b",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0x9",   EFI, 0, it_unknown },
160 
  { "lv.min.h",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xA",   EFI, 0, it_unknown },
161 
  { "lv.msubs.h", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xB",   EFI, 0, it_unknown },
162 
  { "lv.muls.h",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xC",   EFI, 0, it_unknown },
163 
  { "lv.nand",    "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xD",   EFI, 0, it_unknown },
164 
  { "lv.nor",     "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xE",   EFI, 0, it_unknown },
165 
  { "lv.or",      "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x5 0xF",   EFI, 0, it_unknown },
166 
  { "lv.pack.b",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x0",   EFI, 0, it_unknown },
167 
  { "lv.pack.h",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x1",   EFI, 0, it_unknown },
168 
  { "lv.packs.b", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x2",   EFI, 0, it_unknown },
169 
  { "lv.packs.h", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x3",   EFI, 0, it_unknown },
170 
  { "lv.packus.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x4",   EFI, 0, it_unknown },
171 
  { "lv.packus.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x5",   EFI, 0, it_unknown },
172 
  { "lv.perm.n",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x6",   EFI, 0, it_unknown },
173 
  { "lv.rl.b",    "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x7",   EFI, 0, it_unknown },
174 
  { "lv.rl.h",    "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x8",   EFI, 0, it_unknown },
175 
  { "lv.sll.b",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0x9",   EFI, 0, it_unknown },
176 
  { "lv.sll.h",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xA",   EFI, 0, it_unknown },
177 
  { "lv.sll",     "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xB",   EFI, 0, it_unknown },
178 
  { "lv.srl.b",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xC",   EFI, 0, it_unknown },
179 
  { "lv.srl.h",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xD",   EFI, 0, it_unknown },
180 
  { "lv.sra.b",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xE",   EFI, 0, it_unknown },
181 
  { "lv.sra.h",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x6 0xF",   EFI, 0, it_unknown },
182 
  { "lv.srl",     "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x0",   EFI, 0, it_unknown },
183 
  { "lv.sub.b",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x1",   EFI, 0, it_unknown },
184 
  { "lv.sub.h",   "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x2",   EFI, 0, it_unknown },
185 
  { "lv.subs.b",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x3",   EFI, 0, it_unknown },
186 
  { "lv.subs.h",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x4",   EFI, 0, it_unknown },
187 
  { "lv.subu.b",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x5",   EFI, 0, it_unknown },
188 
  { "lv.subu.h",  "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x6",   EFI, 0, it_unknown },
189 
  { "lv.subus.b", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x7",   EFI, 0, it_unknown },
190 
  { "lv.subus.h", "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x8",   EFI, 0, it_unknown },
191 
  { "lv.unpack.b","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0x9",   EFI, 0, it_unknown },
192 
  { "lv.unpack.h","rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xA",   EFI, 0, it_unknown },
193 
  { "lv.xor",     "rD,rA,rB",    "00 0xA  DDDDD AAAAA BBBB B--- 0x7 0xB",   EFI, 0, it_unknown },
194 
  { "lv.cust1",   "",            "00 0xA  ----- ----- ---- ---- 0xC ----",  EFI, 0, it_unknown },
195 
  { "lv.cust2",   "",            "00 0xA  ----- ----- ---- ---- 0xD ----",  EFI, 0, it_unknown },
196 
  { "lv.cust3",   "",            "00 0xA  ----- ----- ---- ---- 0xE ----",  EFI, 0, it_unknown },
197 
  { "lv.cust4",   "",            "00 0xA  ----- ----- ---- ---- 0xF ----",  EFI, 0, it_unknown },
198 
 
199 
  { "l.jr",       "rB",          "01 0x1  ----- ----- BBBB B--- ---- ----", EF(l_jr), OR32_IF_DELAY, it_jump },
200 
  { "l.jalr",     "rB",          "01 0x2  ----- ----- BBBB B--- ---- ----", EF(l_jalr), OR32_IF_DELAY, it_jump },
201 
  { "l.maci",     "rA,I",        "01 0x3  IIIII AAAAA ---- -III IIII IIII", EF(l_mac), 0, it_mac },
202 
  { "l.cust1",    "",            "01 0xC  ----- ----- ---- ---- ---- ----", EF(l_cust1), 0, it_unknown },
203 
  { "l.cust2",    "",            "01 0xD  ----- ----- ---- ---- ---- ----", EF(l_cust2), 0, it_unknown },
204 
  { "l.cust3",    "",            "01 0xE  ----- ----- ---- ---- ---- ----", EF(l_cust3), 0, it_unknown },
205 
  { "l.cust4",    "",            "01 0xF  ----- ----- ---- ---- ---- ----", EF(l_cust4), 0, it_unknown },
206 
 
207 
  { "l.ld",       "rD,I(rA)",    "10 0x0  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0, it_load },
208 
  { "l.lwz",      "rD,I(rA)",    "10 0x1  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lwz), 0, it_load },
209 
  { "l.lws",      "rD,I(rA)",    "10 0x2  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0, it_load },
210 
  { "l.lbz",      "rD,I(rA)",    "10 0x3  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbz), 0, it_load },
211 
  { "l.lbs",      "rD,I(rA)",    "10 0x4  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lbs), 0, it_load },
212 
  { "l.lhz",      "rD,I(rA)",    "10 0x5  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhz), 0, it_load },
213 
  { "l.lhs",      "rD,I(rA)",    "10 0x6  DDDDD AAAAA IIII IIII IIII IIII", EF(l_lhs), 0, it_load },
214 
 
215 
  { "l.addi",     "rD,rA,I",     "10 0x7  DDDDD AAAAA IIII IIII IIII IIII", EF(l_add), OR32_W_FLAG, it_arith },
216 
  { "l.addic",    "rD,rA,I",     "10 0x8  DDDDD AAAAA IIII IIII IIII IIII", EFI, 0, it_arith },
217 
  { "l.andi",     "rD,rA,K",     "10 0x9  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_and), OR32_W_FLAG, it_arith },
218 
  { "l.ori",      "rD,rA,K",     "10 0xA  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_or), 0, it_arith },
219 
  { "l.xori",     "rD,rA,I",     "10 0xB  DDDDD AAAAA IIII IIII IIII IIII", EF(l_xor), 0, it_arith },
220 
  { "l.muli",     "rD,rA,I",     "10 0xC  DDDDD AAAAA IIII IIII IIII IIII", EF(l_mul), 0, it_arith },
221 
  { "l.mfspr",    "rD,rA,K",     "10 0xD  DDDDD AAAAA KKKK KKKK KKKK KKKK", EF(l_mfspr), 0, it_move },
222 
  { "l.slli",     "rD,rA,L",     "10 0xE  DDDDD AAAAA ---- ---- 00LL LLLL", EF(l_sll), 0, it_shift },
223 
  { "l.srli",     "rD,rA,L",     "10 0xE  DDDDD AAAAA ---- ---- 01LL LLLL", EF(l_srl), 0, it_shift },
224 
  { "l.srai",     "rD,rA,L",     "10 0xE  DDDDD AAAAA ---- ---- 10LL LLLL", EF(l_sra), 0, it_shift },
225 
  { "l.rori",     "rD,rA,L",     "10 0xE  DDDDD AAAAA ---- ---- 11LL LLLL", EFI, 0, it_shift },
226 
 
227 
  { "l.sfeqi",    "rA,I",        "10 0xF  00000 AAAAA IIII IIII IIII IIII", EF(l_sfeq), OR32_W_FLAG, it_compare },
228 
  { "l.sfnei",    "rA,I",        "10 0xF  00001 AAAAA IIII IIII IIII IIII", EF(l_sfne), OR32_W_FLAG, it_compare },
229 
  { "l.sfgtui",   "rA,I",        "10 0xF  00010 AAAAA IIII IIII IIII IIII", EF(l_sfgtu), OR32_W_FLAG, it_compare },
230 
  { "l.sfgeui",   "rA,I",        "10 0xF  00011 AAAAA IIII IIII IIII IIII", EF(l_sfgeu), OR32_W_FLAG, it_compare },
231 
  { "l.sfltui",   "rA,I",        "10 0xF  00100 AAAAA IIII IIII IIII IIII", EF(l_sfltu), OR32_W_FLAG, it_compare },
232 
  { "l.sfleui",   "rA,I",        "10 0xF  00101 AAAAA IIII IIII IIII IIII", EF(l_sfleu), OR32_W_FLAG, it_compare },
233 
  { "l.sfgtsi",   "rA,I",        "10 0xF  01010 AAAAA IIII IIII IIII IIII", EF(l_sfgts), OR32_W_FLAG, it_compare },
234 
  { "l.sfgesi",   "rA,I",        "10 0xF  01011 AAAAA IIII IIII IIII IIII", EF(l_sfges), OR32_W_FLAG, it_compare },
235 
  { "l.sfltsi",   "rA,I",        "10 0xF  01100 AAAAA IIII IIII IIII IIII", EF(l_sflts), OR32_W_FLAG, it_compare },
236 
  { "l.sflesi",   "rA,I",        "10 0xF  01101 AAAAA IIII IIII IIII IIII", EF(l_sfles), OR32_W_FLAG, it_compare },
237 
 
238 
  { "l.mtspr",    "rA,rB,K",     "11 0x0  KKKKK AAAAA BBBB BKKK KKKK KKKK", EF(l_mtspr), 0, it_move },
239 
  { "l.mac",      "rA,rB",       "11 0x1  ----- AAAAA BBBB B--- ---- 0x1",  EF(l_mac), 0, it_mac },
240 
  { "l.msb",      "rA,rB",       "11 0x1  ----- AAAAA BBBB B--- ---- 0x2",  EF(l_msb), 0, it_mac },
241 
 
242 
  { "lf.add.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x0",   EF(lf_add_s), 0, it_float },
243 
  { "lf.sub.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x1",   EF(lf_sub_s), 0, it_float },
244 
  { "lf.mul.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x2",   EF(lf_mul_s), 0, it_float },
245 
  { "lf.div.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x3",   EF(lf_div_s), 0, it_float },
246 
  { "lf.itof.s",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x4",   EF(lf_itof_s), 0, it_float },
247 
  { "lf.ftoi.s",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x0 0x5",   EF(lf_ftoi_s), 0, it_float },
248 
  { "lf.rem.s",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x6",   EF(lf_rem_s), 0, it_float },
249 
  { "lf.madd.s",  "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x0 0x7",   EF(lf_madd_s), 0, it_float },
250 
  { "lf.sfeq.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0x8",   EF(lf_sfeq_s), 0, it_float },
251 
  { "lf.sfne.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0x9",   EF(lf_sfne_s), 0, it_float },
252 
  { "lf.sfgt.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xA",   EF(lf_sfgt_s), 0, it_float },
253 
  { "lf.sfge.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xB",   EF(lf_sfge_s), 0, it_float },
254 
  { "lf.sflt.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xC",   EF(lf_sflt_s), 0, it_float },
255 
  { "lf.sfle.s",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x0 0xD",   EF(lf_sfle_s), 0, it_float },
256 
  { "lf.cust1.s", "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0xD ----",  EFI, 0, it_float },
257 
 
258 
  { "lf.add.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x0",   EFI, 0, it_float },
259 
  { "lf.sub.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x1",   EFI, 0, it_float },
260 
  { "lf.mul.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x2",   EFI, 0, it_float },
261 
  { "lf.div.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x3",   EFI, 0, it_float },
262 
  { "lf.itof.d",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x4",   EFI, 0, it_float },
263 
  { "lf.ftoi.d",  "rD,rA",       "11 0x2  DDDDD AAAAA 0000 0--- 0x1 0x5",   EFI, 0, it_float },
264 
  { "lf.rem.d",   "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x6",   EFI, 0, it_float },
265 
  { "lf.madd.d",  "rD,rA,rB",    "11 0x2  DDDDD AAAAA BBBB B--- 0x1 0x7",   EFI, 0, it_float },
266 
  { "lf.sfeq.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0x8",   EFI, 0, it_float },
267 
  { "lf.sfne.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0x9",   EFI, 0, it_float },
268 
  { "lf.sfgt.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xA",   EFI, 0, it_float },
269 
  { "lf.sfge.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xB",   EFI, 0, it_float },
270 
  { "lf.sflt.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xC",   EFI, 0, it_float },
271 
  { "lf.sfle.d",  "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0x1 0xD",   EFI, 0, it_float },
272 
  { "lf.cust1.d", "rA,rB",       "11 0x2  ----- AAAAA BBBB B--- 0xE ----",  EFI, 0, it_float },
273 
 
274 
  { "l.sd",       "I(rD),rB",    "11 0x4  IIIII DDDDD BBBB BIII IIII IIII", EFI, 0, it_store },
275 
  { "l.sw",       "I(rD),rB",    "11 0x5  IIIII DDDDD BBBB BIII IIII IIII", EF(l_sw), 0, it_store },
276 
  { "l.sb",       "I(rD),rB",    "11 0x6  IIIII DDDDD BBBB BIII IIII IIII", EF(l_sb), 0, it_store },
277 
  { "l.sh",       "I(rD),rB",    "11 0x7  IIIII DDDDD BBBB BIII IIII IIII", EF(l_sh), 0, it_store },
278 
 
279 
  { "l.add",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x0",  EF(l_add), OR32_W_FLAG, it_arith },
280 
  { "l.addc",     "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x1",  EF(l_addc), OR32_W_FLAG, it_arith },
281 
  { "l.sub",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x2",  EF(l_sub), 0, it_arith },
282 
  { "l.and",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x3",  EF(l_and), OR32_W_FLAG, it_arith },
283 
  { "l.or",       "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x4",  EF(l_or), 0, it_arith },
284 
  { "l.xor",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0x5",  EF(l_xor), 0, it_arith },
285 
  { "l.mul",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x6",  EF(l_mul), 0, it_arith },
286 
 
287 
  { "l.sll",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 00-- 0x8",  EF(l_sll), 0, it_shift },
288 
  { "l.srl",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 01-- 0x8",  EF(l_srl), 0, it_shift },
289 
  { "l.sra",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 10-- 0x8",  EF(l_sra), 0, it_shift },
290 
  { "l.ror",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 11-- 0x8",  EFI, 0, it_shift },
291 
  { "l.div",      "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0x9",  EF(l_div), 0, it_arith },
292 
  { "l.divu",     "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xA",  EF(l_divu), 0, it_arith },
293 
  { "l.mulu",     "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-11 ---- 0xB",  EFI, 0, it_arith },
294 
  { "l.extbs",    "rD,rA",       "11 0x8  DDDDD AAAAA ---- --00 01-- 0xC",  EF(l_extbs), 0, it_move },
295 
  { "l.exths",    "rD,rA",       "11 0x8  DDDDD AAAAA ---- --00 00-- 0xC",  EF(l_exths), 0, it_move },
296 
  { "l.extws",    "rD,rA",       "11 0x8  DDDDD AAAAA ---- --00 00-- 0xD",  EF(l_extws), 0, it_move },
297 
  { "l.extbz",    "rD,rA",       "11 0x8  DDDDD AAAAA ---- --00 11-- 0xC",  EF(l_extbz), 0, it_move },
298 
  { "l.exthz",    "rD,rA",       "11 0x8  DDDDD AAAAA ---- --00 10-- 0xC",  EF(l_exthz), 0, it_move },
299 
  { "l.extwz",    "rD,rA",       "11 0x8  DDDDD AAAAA ---- --00 01-- 0xD",  EF(l_extwz), 0, it_move },
300 
  { "l.cmov",     "rD,rA,rB",    "11 0x8  DDDDD AAAAA BBBB B-00 ---- 0xE",  EF(l_cmov), OR32_R_FLAG, it_move },
301 
  { "l.ff1",      "rD,rA",       "11 0x8  DDDDD AAAAA ---- --00 ---- 0xF",  EF(l_ff1), 0, it_arith },
302 
  { "l.fl1",      "rD,rA",       "11 0x8  DDDDD AAAAA ---- --01 ---- 0xF",  EFI, 0, it_arith },
303 
 
304 
  { "l.sfeq",     "rA,rB",       "11 0x9  00000 AAAAA BBBB B--- ---- ----", EF(l_sfeq), OR32_W_FLAG, it_compare },
305 
  { "l.sfne",     "rA,rB",       "11 0x9  00001 AAAAA BBBB B--- ---- ----", EF(l_sfne), OR32_W_FLAG, it_compare },
306 
  { "l.sfgtu",    "rA,rB",       "11 0x9  00010 AAAAA BBBB B--- ---- ----", EF(l_sfgtu), OR32_W_FLAG, it_compare },
307 
  { "l.sfgeu",    "rA,rB",       "11 0x9  00011 AAAAA BBBB B--- ---- ----", EF(l_sfgeu), OR32_W_FLAG, it_compare },
308 
  { "l.sfltu",    "rA,rB",       "11 0x9  00100 AAAAA BBBB B--- ---- ----", EF(l_sfltu), OR32_W_FLAG, it_compare },
309 
  { "l.sfleu",    "rA,rB",       "11 0x9  00101 AAAAA BBBB B--- ---- ----", EF(l_sfleu), OR32_W_FLAG, it_compare },
310 
  { "l.sfgts",    "rA,rB",       "11 0x9  01010 AAAAA BBBB B--- ---- ----", EF(l_sfgts), OR32_W_FLAG, it_compare },
311 
  { "l.sfges",    "rA,rB",       "11 0x9  01011 AAAAA BBBB B--- ---- ----", EF(l_sfges), OR32_W_FLAG, it_compare },
312 
  { "l.sflts",    "rA,rB",       "11 0x9  01100 AAAAA BBBB B--- ---- ----", EF(l_sflts), OR32_W_FLAG, it_compare },
313 
  { "l.sfles",    "rA,rB",       "11 0x9  01101 AAAAA BBBB B--- ---- ----", EF(l_sfles), OR32_W_FLAG, it_compare },
314 
 
315 
  { "l.cust5",    "rD,rA,rB,L,K","11 0xC  DDDDD AAAAA BBBB BLLL LLLK KKKK", EFI, 0, it_unknown },
316 
  { "l.cust6",    "",            "11 0xD  ----- ----- ---- ---- ---- ----", EFI, 0, it_unknown },
317 
  { "l.cust7",    "",            "11 0xE  ----- ----- ---- ---- ---- ----", EFI, 0, it_unknown },
318 
  { "l.cust8",    "",            "11 0xF  ----- ----- ---- ---- ---- ----", EFI, 0, it_unknown },
319 
 
320 
  /* This section should not be defined in or1ksim, since it contains duplicates,
321 
     which would cause machine builder to complain.  */
322 
#ifdef HAS_CUST
323 
  { "l.cust5_1",  "rD",          "11 0xC  DDDDD ----- ---- ---- ---- ----", EFI, 0, it_unknown },
324 
  { "l.cust5_2",  "rD,rA"   ,    "11 0xC  DDDDD AAAAA ---- ---- ---- ----", EFI, 0, it_unknown },
325 
  { "l.cust5_3",  "rD,rA,rB",    "11 0xC  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0, it_unknown },
326 
 
327 
  { "l.cust6_1",  "rD",          "11 0xD  DDDDD ----- ---- ---- ---- ----", EFI, 0, it_unknown },
328 
  { "l.cust6_2",  "rD,rA"   ,    "11 0xD  DDDDD AAAAA ---- ---- ---- ----", EFI, 0, it_unknown },
329 
  { "l.cust6_3",  "rD,rA,rB",    "11 0xD  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0, it_unknown },
330 
 
331 
  { "l.cust7_1",  "rD",          "11 0xE  DDDDD ----- ---- ---- ---- ----", EFI, 0, it_unknown },
332 
  { "l.cust7_2",  "rD,rA"   ,    "11 0xE  DDDDD AAAAA ---- ---- ---- ----", EFI, 0, it_unknown },
333 
  { "l.cust7_3",  "rD,rA,rB",    "11 0xE  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0, it_unknown },
334 
 
335 
  { "l.cust8_1",  "rD",          "11 0xF  DDDDD ----- ---- ---- ---- ----", EFI, 0, it_unknown },
336 
  { "l.cust8_2",  "rD,rA"   ,    "11 0xF  DDDDD AAAAA ---- ---- ---- ----", EFI, 0, it_unknown },
337 
  { "l.cust8_3",  "rD,rA,rB",    "11 0xF  DDDDD AAAAA BBBB B--- ---- ----", EFI, 0, it_unknown },
338 
#endif
339 
 
340 
  /* 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 
  { "", "", "", EFI, 0, 0 }
344 
};
345 
 
346 
#undef EFI
347 
#undef EFN
348 
#undef EF
349 
 
350 
/* Define dummy, if debug is not defined.  */
351 
#ifndef HAS_DEBUG
352 
#define debug(l, fmt...) ;
353 
#endif
354 
 
355 
const unsigned int or32_num_opcodes = ((sizeof(or32_opcodes)) / (sizeof(struct or32_opcode))) - 1;
356 
 
357 
/* Calculates instruction length in bytes. Always 4 for OR32.  */
358 
 
359 
int
360 
insn_len (int insn_index ATTRIBUTE_UNUSED)
361 
{
362 
  insn_index = 0; /* Just to get rid that warning.  */
363 
  return 4;
364 
}
365 
 
366 
/* Is individual insn's operand signed or unsigned?  */
367 
 
368 
int
369 
letter_signed (char l)
370 
{
371 
  const struct or32_letter *pletter;
372 
 
373 
  for (pletter = or32_letters; pletter->letter != '\0'; pletter++)
374 
    if (pletter->letter == l)
375 
      return pletter->sign;
376 
 
377 
  printf ("letter_signed(%c): Unknown letter.\n", l);
378 
  return 0;
379 
}
380 
 
381 
/* Simple cache for letter ranges */
382 
static int range_cache[256] = {0};
383 
 
384 
/* Number of letters in the individual lettered operand.  */
385 
int
386 
letter_range (char l)
387 
{
388 
  const struct or32_opcode *pinsn;
389 
  char *enc;
390 
  int range = 0;
391 
 
392 
  /* Is value cached? */
393 
  if ((range = range_cache[(unsigned char)l])) return range;
394 
 
395 
  for (pinsn = or32_opcodes; strlen (pinsn->name); pinsn ++)
396 
    {
397 
      if (strchr (pinsn->encoding,l))
398 
        {
399 
          for (enc = pinsn->encoding; *enc != '\0'; enc ++)
400 
            if ((*enc == '0') && (*(enc + 1) == 'x'))
401 
              enc += 2;
402 
            else if (*enc == l)
403 
              range++;
404 
          return range_cache[(unsigned char)l] = range;
405 
        }
406 
    }
407 
 
408 
  printf ("\nABORT: letter_range(%c): Never used letter.\n", l);
409 
  exit (1);
410 
}
411 
 
412 
/* MM: Returns index of given instruction name.  */
413 
 
414 
int
415 
insn_index (char *insn)
416 
{
417 
  unsigned int i;
418 
  int found = -1;
419 
 
420 
  for (i = 0; i < or32_num_opcodes; i++)
421 
    if (!strcmp (or32_opcodes[i].name, insn))
422 
      {
423 
        found = i;
424 
        break;
425 
      }
426 
  return found;
427 
}
428 
 
429 
const char *
430 
insn_name (int index)
431 
{
432 
  if (index >= 0 && index < (int) or32_num_opcodes)
433 
    return or32_opcodes[index].name;
434 
  else
435 
    return "???";
436 
}
437 
 
438 
#if defined(HAS_EXECUTION) && SIMPLE_EXECUTION
439 
void
440 
l_none(struct iqueue_entry *current)
441 
{
442 
}
443 
#elif defined(HAS_EXECUTION) && DYNAMIC_EXECUTION
444 
void
445 
l_none(struct op_queue *opq, int *param_t, orreg_t *param, int delay_slot)
446 
{
447 
}
448 
#else
449 
void
450 
l_none (void)
451 
{
452 
}
453 
#endif
454 
 
455 
/* Finite automata for instruction decoding building code.  */
456 
 
457 
/* Find simbols in encoding.  */
458 
 
459 
unsigned long
460 
insn_extract (char param_ch, char *enc_initial)
461 
{
462 
  char *enc;
463 
  unsigned long ret = 0;
464 
  unsigned opc_pos = 32;
465 
 
466 
  for (enc = enc_initial; *enc != '\0'; )
467 
    if ((*enc == '0') && (*(enc + 1) == 'x'))
468 
      {
469 
        unsigned long tmp = strtol (enc+2, NULL, 16);
470 
 
471 
        opc_pos -= 4;
472 
        if (param_ch == '0' || param_ch == '1')
473 
          {
474 
            if (param_ch == '0')
475 
              tmp = 15 - tmp;
476 
            ret |= tmp << opc_pos;
477 
          }
478 
        enc += 3;
479 
      }
480 
    else
481 
      {
482 
        if (*enc == '0' || *enc == '1' || *enc == '-' || ISALPHA (*enc))
483 
          {
484 
            opc_pos--;
485 
            if (param_ch == *enc)
486 
              ret |= 1 << opc_pos;
487 
          }
488 
        enc++;
489 
      }
490 
  return ret;
491 
}
492 
 
493 
#define MAX_AUTOMATA_SIZE  1200
494 
#define MAX_OP_TABLE_SIZE  1200
495 
#define MAX_LEN            8
496 
 
497 
#ifndef MIN
498 
#define MIN(x, y)          ((x) < (y) ? (x) : (y))
499 
#endif
500 
 
501 
unsigned long *automata;
502 
int nuncovered;
503 
int curpass = 0;
504 
 
505 
/* MM: Struct that hold runtime build information about instructions.  */
506 
struct temp_insn_struct *ti;
507 
 
508 
struct insn_op_struct *op_data, **op_start;
509 
 
510 
/* Recursive utility function used to find best match and to build automata.  */
511 
 
512 
static unsigned long *
513 
cover_insn (unsigned long * cur, int pass, unsigned int mask)
514 
{
515 
  int best_first = 0, last_match = -1, ninstr = 0;
516 
  unsigned int best_len = 0;
517 
  unsigned int i;
518 
  unsigned long cur_mask = mask;
519 
  unsigned long *next;
520 
 
521 
  for (i = 0; i < or32_num_opcodes; i++)
522 
    if (ti[i].in_pass == pass)
523 
      {
524 
        cur_mask &= ti[i].insn_mask;
525 
        ninstr++;
526 
        last_match = i;
527 
      }
528 
 
529 
  debug (8, "%08X %08lX\n", mask, cur_mask);
530 
 
531 
  if (ninstr == 0)
532 
    return 0;
533 
 
534 
  if (ninstr == 1)
535 
    {
536 
      /* Leaf holds instruction index.  */
537 
      debug (8, "%li>I%i %s\n",
538 
             (long)(cur - automata), last_match, or32_opcodes[last_match].name);
539 
 
540 
      *cur = LEAF_FLAG | last_match;
541 
      cur++;
542 
      nuncovered--;
543 
    }
544 
  else
545 
    {
546 
      /* Find longest match.  */
547 
      for (i = 0; i < 32; i++)
548 
        {
549 
          unsigned int len;
550 
 
551 
          for (len = best_len + 1; len < MIN (MAX_LEN, 33 - i); len++)
552 
            {
553 
              unsigned long m = (1UL << ((unsigned long) len)) - 1;
554 
 
555 
              debug (9, " (%i(%08lX & %08lX>>%i = %08lX, %08lX)",
556 
                     len,m, cur_mask, i, (cur_mask >> (unsigned)i),
557 
                     (cur_mask >> (unsigned) i) & m);
558 
 
559 
              if ((m & (cur_mask >> (unsigned) i)) == m)
560 
                {
561 
                  best_len = len;
562 
                  best_first = i;
563 
                  debug (9, "!");
564 
                }
565 
              else
566 
                break;
567 
            }
568 
        }
569 
 
570 
      debug (9, "\n");
571 
 
572 
      if (!best_len)
573 
        {
574 
          fprintf (stderr, "%i instructions match mask 0x%08X:\n", ninstr, mask);
575 
 
576 
          for (i = 0; i < or32_num_opcodes; i++)
577 
            if (ti[i].in_pass == pass)
578 
              fprintf (stderr, "%s ", or32_opcodes[i].name);
579 
 
580 
          fprintf (stderr, "\n");
581 
          exit (1);
582 
        }
583 
 
584 
      debug (8, "%li> #### %i << %i (%i) ####\n",
585 
             (long)(cur - automata), best_len, best_first, ninstr);
586 
 
587 
      *cur = best_first;
588 
      cur++;
589 
      *cur = (1 << best_len) - 1;
590 
      cur++;
591 
      next = cur;
592 
 
593 
      /* Allocate space for pointers.  */
594 
      cur += 1 << best_len;
595 
      cur_mask = (1 << (unsigned long) best_len) - 1;
596 
 
597 
      for (i = 0; i < ((unsigned) 1 << best_len); i++)
598 
        {
599 
          unsigned int j;
600 
          unsigned long *c;
601 
 
602 
          curpass++;
603 
          for (j = 0; j < or32_num_opcodes; j++)
604 
            if (ti[j].in_pass == pass
605 
                && ((ti[j].insn >> best_first) & cur_mask) == (unsigned long) i
606 
                && ((ti[j].insn_mask >> best_first) & cur_mask) == cur_mask)
607 
              ti[j].in_pass = curpass;
608 
 
609 
          debug (9, "%08X %08lX %i\n", mask, cur_mask, best_first);
610 
          c = cover_insn (cur, curpass, mask & (~(cur_mask << best_first)));
611 
          if (c)
612 
            {
613 
              debug (8, "%li> #%X -> %lu\n", (long)(next - automata), i, (long)(cur - automata));
614 
              *next = cur - automata;
615 
              cur = c;
616 
            }
617 
          else
618 
            {
619 
              debug (8, "%li> N/A\n", (long)(next - automata));
620 
              *next = 0;
621 
            }
622 
          next++;
623 
        }
624 
    }
625 
  return cur;
626 
}
627 
 
628 
/* Returns number of nonzero bits.  */
629 
 
630 
static int
631 
num_ones (unsigned long value)
632 
{
633 
  int c = 0;
634 
 
635 
  while (value)
636 
    {
637 
      if (value & 1)
638 
        c++;
639 
      value >>= 1;
640 
    }
641 
  return c;
642 
}
643 
 
644 
/* Utility function, which converts parameters from or32_opcode
645 
   format to more binary form.  Parameters are stored in ti struct.  */
646 
 
647 
static struct insn_op_struct *
648 
parse_params (const struct or32_opcode * opcode,
649 
              struct insn_op_struct * cur)
650 
{
651 
  char *args = opcode->args;
652 
  int i, type;
653 
  int num_cur_op = 0;
654 
 
655 
  i = 0;
656 
  type = 0;
657 
  /* In case we don't have any parameters, we add dummy read from r0.  */
658 
 
659 
  if (!(*args))
660 
    {
661 
      cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
662 
      cur->data = 0;
663 
      debug (9, "#%08lX %08lX\n", cur->type, cur->data);
664 
      cur++;
665 
      return cur;
666 
  }
667 
 
668 
  while (*args != '\0')
669 
    {
670 
      if (*args == 'r')
671 
        {
672 
          args++;
673 
          type |= OPTYPE_REG;
674 
    if (*args == 'D')
675 
      type |= OPTYPE_DST;
676 
        }
677 
      else if (ISALPHA (*args))
678 
        {
679 
          unsigned long arg;
680 
 
681 
          arg = insn_extract (*args, opcode->encoding);
682 
          debug (9, "%s : %08lX ------\n", opcode->name, arg);
683 
          if (letter_signed (*args))
684 
            {
685 
              type |= OPTYPE_SIG;
686 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
687 
            }
688 
 
689 
    num_cur_op = 0;
690 
          /* Split argument to sequences of consecutive ones.  */
691 
          while (arg)
692 
            {
693 
              int shr = 0;
694 
              unsigned long tmp = arg, mask = 0;
695 
 
696 
              while ((tmp & 1) == 0)
697 
                {
698 
                  shr++;
699 
                  tmp >>= 1;
700 
                }
701 
              while (tmp & 1)
702 
                {
703 
                  mask++;
704 
                  tmp >>= 1;
705 
                }
706 
              cur->type = type | shr;
707 
              cur->data = mask;
708 
              arg &= ~(((1 << mask) - 1) << shr);
709 
              debug (6, "|%08lX %08lX\n", cur->type, cur->data);
710 
              cur++;
711 
        num_cur_op++;
712 
            }
713 
          args++;
714 
        }
715 
      else if (*args == '(')
716 
        {
717 
          /* Next param is displacement.
718 
             Later we will treat them as one operand.  */
719 
    /* Set the OPTYPE_DIS flag on all insn_op_structs that belong to this
720 
     * operand */
721 
    while(num_cur_op > 0) {
722 
            cur[-num_cur_op].type |= type | OPTYPE_DIS;
723 
      num_cur_op--;
724 
    }
725 
    cur[-1].type |= OPTYPE_OP;
726 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
727 
          type = 0;
728 
          i++;
729 
          args++;
730 
        }
731 
      else if (*args == OPERAND_DELIM)
732 
        {
733 
          cur--;
734 
          cur->type = type | cur->type | OPTYPE_OP;
735 
          debug (9, ">%08lX %08lX\n", cur->type, cur->data);
736 
          cur++;
737 
          type = 0;
738 
          i++;
739 
          args++;
740 
        }
741 
      else if (*args == '0')
742 
        {
743 
          cur->type = type;
744 
          cur->data = 0;
745 
          debug (9, ">%08lX %08lX\n", cur->type, cur->data);
746 
          cur++;
747 
          type = 0;
748 
          i++;
749 
          args++;
750 
        }
751 
      else if (*args == ')')
752 
        args++;
753 
      else
754 
        {
755 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
756 
          exit (1);
757 
        }
758 
    }
759 
 
760 
  cur--;
761 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
762 
  debug (9, "#%08lX %08lX\n", cur->type, cur->data);
763 
  cur++;
764 
 
765 
  return cur;
766 
}
767 
 
768 
/* Constructs new automata based on or32_opcodes array.  */
769 
 
770 
void
771 
build_automata (void)
772 
{
773 
  unsigned int i;
774 
  unsigned long *end;
775 
  struct insn_op_struct *cur;
776 
 
777 
  automata = malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
778 
  ti = malloc (sizeof (struct temp_insn_struct) * or32_num_opcodes);
779 
 
780 
  nuncovered = or32_num_opcodes;
781 
  printf ("Building automata... ");
782 
  /* Build temporary information about instructions.  */
783 
  for (i = 0; i < or32_num_opcodes; i++)
784 
    {
785 
      unsigned long ones, zeros;
786 
      char *encoding = or32_opcodes[i].encoding;
787 
 
788 
      ones  = insn_extract('1', encoding);
789 
      zeros = insn_extract('0', encoding);
790 
 
791 
      ti[i].insn_mask = ones | zeros;
792 
      ti[i].insn = ones;
793 
      ti[i].in_pass = curpass = 0;
794 
 
795 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
796 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
797 
    }
798 
 
799 
  /* Until all are covered search for best criteria to separate them.  */
800 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
801 
 
802 
  if (end - automata > MAX_AUTOMATA_SIZE)
803 
    {
804 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
805 
      exit (1);
806 
    }
807 
 
808 
  printf ("done, num uncovered: %i/%i.\n", nuncovered, or32_num_opcodes);
809 
  printf ("Parsing operands data... ");
810 
 
811 
  op_data = malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
812 
  op_start = malloc (or32_num_opcodes * sizeof (struct insn_op_struct *));
813 
  cur = op_data;
814 
 
815 
  for (i = 0; i < or32_num_opcodes; i++)
816 
    {
817 
      op_start[i] = cur;
818 
      cur = parse_params (&or32_opcodes[i], cur);
819 
 
820 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
821 
        {
822 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
823 
          exit (1);
824 
        }
825 
    }
826 
  printf ("done.\n");
827 
}
828 
 
829 
void
830 
destruct_automata (void)
831 
{
832 
  free (ti);
833 
  free (automata);
834 
  free (op_data);
835 
  free (op_start);
836 
}
837 
 
838 
/* Decodes instruction and returns instruction index.  */
839 
 
840 
int
841 
insn_decode (unsigned int insn)
842 
{
843 
  unsigned long *a = automata;
844 
  int i;
845 
 
846 
  while (!(*a & LEAF_FLAG))
847 
    {
848 
      unsigned int first = *a;
849 
 
850 
      debug (9, "%li ", (long)(a - automata));
851 
 
852 
      a++;
853 
      i = (insn >> first) & *a;
854 
      a++;
855 
      if (!*(a + i))
856 
        {
857 
          /* Invalid instruction found?  */
858 
          debug (9, "XXX\n");
859 
          return -1;
860 
        }
861 
      a = automata + *(a + i);
862 
    }
863 
 
864 
  i = *a & ~LEAF_FLAG;
865 
 
866 
  debug (9, "%i\n", i);
867 
 
868 
  /* Final check - do we have direct match?
869 
     (based on or32_opcodes this should be the only possibility,
870 
     but in case of invalid/missing instruction we must perform a check)  */
871 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
872 
    return i;
873 
  else
874 
    return -1;
875 
}
876 
 
877 
static char disassembled_str[50];
878 
char *disassembled = &disassembled_str[0];
879 
 
880 
/* Automagically does zero- or sign- extension and also finds correct
881 
   sign bit position if sign extension is correct extension. Which extension
882 
   is proper is figured out from letter description.  */
883 
 
884 
unsigned long
885 
extend_imm (unsigned long imm, char l)
886 
{
887 
  unsigned long mask;
888 
  int letter_bits;
889 
 
890 
  /* First truncate all bits above valid range for this letter
891 
     in case it is zero extend.  */
892 
  letter_bits = letter_range (l);
893 
  mask = (1 << letter_bits) - 1;
894 
  imm &= mask;
895 
 
896 
  /* Do sign extend if this is the right one.  */
897 
  if (letter_signed(l) && (imm >> (letter_bits - 1)))
898 
    imm |= (~mask);
899 
 
900 
  return imm;
901 
}
902 
 
903 
static unsigned long
904 
or32_extract (char param_ch, char *enc_initial, unsigned long insn)
905 
{
906 
  char *enc;
907 
  unsigned long ret = 0;
908 
  int opc_pos = 0;
909 
  int param_pos = 0;
910 
 
911 
  for (enc = enc_initial; *enc != '\0'; enc++)
912 
    if (*enc == param_ch)
913 
      {
914 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
915 
          continue;
916 
        else
917 
          param_pos++;
918 
      }
919 
 
920 
#if DEBUG
921 
  printf ("or32_extract: %x ", param_pos);
922 
#endif
923 
  opc_pos = 32;
924 
 
925 
  for (enc = enc_initial; *enc != '\0'; )
926 
    if ((*enc == '0') && (*(enc + 1) == 'x'))
927 
      {
928 
        opc_pos -= 4;
929 
        if ((param_ch == '0') || (param_ch == '1'))
930 
          {
931 
            unsigned long tmp = strtol (enc, NULL, 16);
932 
#if DEBUG
933 
            printf (" enc=%s, tmp=%x ", enc, tmp);
934 
#endif
935 
            if (param_ch == '0')
936 
              tmp = 15 - tmp;
937 
            ret |= tmp << opc_pos;
938 
          }
939 
        enc += 3;
940 
      }
941 
    else if ((*enc == '0') || (*enc == '1'))
942 
      {
943 
        opc_pos--;
944 
        if (param_ch == *enc)
945 
          ret |= 1 << opc_pos;
946 
        enc++;
947 
      }
948 
    else if (*enc == param_ch)
949 
      {
950 
        opc_pos--;
951 
        param_pos--;
952 
#if DEBUG
953 
        printf ("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
954 
#endif
955 
        if (ISLOWER (param_ch))
956 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
957 
        else
958 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
959 
        enc++;
960 
      }
961 
    else if (ISALPHA (*enc))
962 
      {
963 
        opc_pos--;
964 
        enc++;
965 
      }
966 
    else if (*enc == '-')
967 
      {
968 
        opc_pos--;
969 
        enc++;
970 
      }
971 
    else
972 
      enc++;
973 
 
974 
#if DEBUG
975 
  printf ("ret=%x\n", ret);
976 
#endif
977 
  return ret;
978 
}
979 
 
980 
/* Print register. Used only by print_insn.  */
981 
 
982 
static char *
983 
or32_print_register (char *dest, char param_ch, char *encoding, unsigned long insn)
984 
{
985 
  int regnum = or32_extract(param_ch, encoding, insn);
986 
 
987 
  sprintf (dest, "r%d", regnum);
988 
  while (*dest) dest++;
989 
  return dest;
990 
}
991 
 
992 
/* Print immediate. Used only by print_insn.  */
993 
 
994 
static char *
995 
or32_print_immediate (char *dest, char param_ch, char *encoding, unsigned long insn)
996 
{
997 
  int imm = or32_extract (param_ch, encoding, insn);
998 
 
999 
  imm = extend_imm (imm, param_ch);
1000 
 
1001 
  if (letter_signed (param_ch))
1002 
    {
1003 
      if (imm < 0)
1004 
        sprintf (dest, "%d", imm);
1005 
      else
1006 
        sprintf (dest, "0x%x", imm);
1007 
    }
1008 
  else
1009 
    sprintf (dest, "%#x", imm);
1010 
  while (*dest) dest++;
1011 
  return dest;
1012 
}
1013 
 
1014 
/* Disassemble one instruction from insn index.
1015 
   Return the size of the instruction.  */
1016 
 
1017 
int
1018 
disassemble_index (insn, index)
1019 
     unsigned long insn;
1020 
     int index;
1021 
{
1022 
  char *dest = disassembled;
1023 
 
1024 
  if (index >= 0)
1025 
    {
1026 
      struct or32_opcode const *opcode = &or32_opcodes[index];
1027 
      char *s;
1028 
 
1029 
      strcpy (dest, opcode->name);
1030 
      while (*dest) dest++;
1031 
      *dest++ = ' ';
1032 
      *dest = 0;
1033 
 
1034 
      for (s = opcode->args; *s != '\0'; ++s)
1035 
        {
1036 
          switch (*s)
1037 
            {
1038 
            case '\0':
1039 
              return insn_len (insn);
1040 
 
1041 
            case 'r':
1042 
              dest = or32_print_register(dest, *++s, opcode->encoding, insn);
1043 
              break;
1044 
 
1045 
            default:
1046 
              if (strchr (opcode->encoding, *s))
1047 
                dest = or32_print_immediate (dest, *s, opcode->encoding, insn);
1048 
              else {
1049 
                *dest++ = *s;
1050 
                *dest = 0;
1051 
              }
1052 
            }
1053 
        }
1054 
    }
1055 
  else
1056 
    {
1057 
      /* This used to be %8x for binutils.  */
1058 
      sprintf(dest, ".word 0x%08lx", insn);
1059 
      while (*dest) dest++;
1060 
    }
1061 
 
1062 
  return insn_len (insn);
1063 
}
1064 
 
1065 
/* Disassemble one instruction from insn to disassemble.
1066 
   Return the size of the instruction.  */
1067 
 
1068 
int
1069 
disassemble_insn (unsigned long insn)
1070 
{
1071 
  return disassemble_index (insn, insn_decode (insn));
1072 
}
1073 
 

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