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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [opcodes/] [or32-opc.c] - Blame information for rev 452

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1 24 jeremybenn 
/* Table of opcodes for the OpenRISC 1000 ISA.
2 225 jeremybenn 
   Copyright 2002, 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
3 24 jeremybenn 
   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
32 225 jeremybenn 
#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 24 jeremybenn 
#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
70 225 jeremybenn 
# 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 24 jeremybenn 
#endif /* HAS_EXECUTION */
92 
 
93 225 jeremybenn 
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 24 jeremybenn 
 
199 225 jeremybenn 
  { "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  ----- AAAAA IIII IIII 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 24 jeremybenn 
 
207 225 jeremybenn 
  { "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 24 jeremybenn 
 
215 225 jeremybenn 
  { "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 24 jeremybenn 
 
227 225 jeremybenn 
  { "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 24 jeremybenn 
 
238 225 jeremybenn 
  { "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 24 jeremybenn 
 
242 225 jeremybenn 
  { "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 24 jeremybenn 
 
258 225 jeremybenn 
  { "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 24 jeremybenn 
 
274 225 jeremybenn 
  { "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 24 jeremybenn 
 
279 225 jeremybenn 
  { "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 24 jeremybenn 
 
287 225 jeremybenn 
  { "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 24 jeremybenn 
 
304 225 jeremybenn 
  { "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 24 jeremybenn 
 
315 225 jeremybenn 
  { "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 24 jeremybenn 
 
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
323 225 jeremybenn 
  { "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 24 jeremybenn 
#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.  */
343 225 jeremybenn 
  { "", "", "", EFI, 0, 0 }
344 24 jeremybenn 
};
345 
 
346 
#undef EFI
347 
#undef EFN
348 
#undef EF
349 
 
350 
/* Define dummy, if debug is not defined.  */
351 225 jeremybenn 
#ifndef HAS_DEBUG
352 
#define debug(l, fmt...) ;
353 24 jeremybenn 
#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 
{
362 225 jeremybenn 
  insn_index = 0; /* Just to get rid that warning.  */
363 24 jeremybenn 
  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 
 
381 225 jeremybenn 
/* Simple cache for letter ranges */
382 
static int range_cache[256] = {0};
383 
 
384 24 jeremybenn 
/* 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;
391 225 jeremybenn 
 
392 
  /* Is value cached? */
393 
  if ((range = range_cache[(unsigned char)l])) return range;
394 24 jeremybenn 
 
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++;
404 225 jeremybenn 
          return range_cache[(unsigned char)l] = range;
405 24 jeremybenn 
        }
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 
 
438 225 jeremybenn 
#if defined(HAS_EXECUTION) && SIMPLE_EXECUTION
439 24 jeremybenn 
void
440 225 jeremybenn 
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 24 jeremybenn 
l_none (void)
451 
{
452 
}
453 225 jeremybenn 
#endif
454 24 jeremybenn 
 
455 
/* Finite automata for instruction decoding building code.  */
456 
 
457 
/* Find simbols in encoding.  */
458 
 
459 225 jeremybenn 
unsigned long
460 24 jeremybenn 
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.  */
506 225 jeremybenn 
struct temp_insn_struct *ti;
507 24 jeremybenn 
 
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 
            {
613 225 jeremybenn 
              debug (8, "%li> #%X -> %lu\n", (long)(next - automata), i,
614 
                     (unsigned long)(cur - automata));
615 24 jeremybenn 
              *next = cur - automata;
616 
              cur = c;
617 
            }
618 
          else
619 
            {
620 
              debug (8, "%li> N/A\n", (long)(next - automata));
621 
              *next = 0;
622 
            }
623 
          next++;
624 
        }
625 
    }
626 
  return cur;
627 
}
628 
 
629 
/* Returns number of nonzero bits.  */
630 
 
631 
static int
632 
num_ones (unsigned long value)
633 
{
634 
  int c = 0;
635 
 
636 
  while (value)
637 
    {
638 
      if (value & 1)
639 
        c++;
640 
      value >>= 1;
641 
    }
642 
  return c;
643 
}
644 
 
645 
/* Utility function, which converts parameters from or32_opcode
646 
   format to more binary form.  Parameters are stored in ti struct.  */
647 
 
648 
static struct insn_op_struct *
649 
parse_params (const struct or32_opcode * opcode,
650 
              struct insn_op_struct * cur)
651 
{
652 
  char *args = opcode->args;
653 
  int i, type;
654 225 jeremybenn 
  int num_cur_op = 0;
655 24 jeremybenn 
 
656 
  i = 0;
657 
  type = 0;
658 
  /* In case we don't have any parameters, we add dummy read from r0.  */
659 
 
660 
  if (!(*args))
661 
    {
662 
      cur->type = OPTYPE_REG | OPTYPE_OP | OPTYPE_LAST;
663 
      cur->data = 0;
664 
      debug (9, "#%08lX %08lX\n", cur->type, cur->data);
665 
      cur++;
666 
      return cur;
667 
  }
668 
 
669 
  while (*args != '\0')
670 
    {
671 
      if (*args == 'r')
672 
        {
673 
          args++;
674 
          type |= OPTYPE_REG;
675 225 jeremybenn 
    if (*args == 'D')
676 
      type |= OPTYPE_DST;
677 24 jeremybenn 
        }
678 
      else if (ISALPHA (*args))
679 
        {
680 
          unsigned long arg;
681 
 
682 
          arg = insn_extract (*args, opcode->encoding);
683 
          debug (9, "%s : %08lX ------\n", opcode->name, arg);
684 
          if (letter_signed (*args))
685 
            {
686 
              type |= OPTYPE_SIG;
687 
              type |= ((num_ones (arg) - 1) << OPTYPE_SBIT_SHR) & OPTYPE_SBIT;
688 
            }
689 
 
690 225 jeremybenn 
    num_cur_op = 0;
691 24 jeremybenn 
          /* Split argument to sequences of consecutive ones.  */
692 
          while (arg)
693 
            {
694 
              int shr = 0;
695 
              unsigned long tmp = arg, mask = 0;
696 
 
697 
              while ((tmp & 1) == 0)
698 
                {
699 
                  shr++;
700 
                  tmp >>= 1;
701 
                }
702 
              while (tmp & 1)
703 
                {
704 
                  mask++;
705 
                  tmp >>= 1;
706 
                }
707 
              cur->type = type | shr;
708 
              cur->data = mask;
709 
              arg &= ~(((1 << mask) - 1) << shr);
710 
              debug (6, "|%08lX %08lX\n", cur->type, cur->data);
711 
              cur++;
712 225 jeremybenn 
        num_cur_op++;
713 24 jeremybenn 
            }
714 
          args++;
715 
        }
716 
      else if (*args == '(')
717 
        {
718 
          /* Next param is displacement.
719 
             Later we will treat them as one operand.  */
720 225 jeremybenn 
    /* Set the OPTYPE_DIS flag on all insn_op_structs that belong to this
721 
     * operand */
722 
    while(num_cur_op > 0) {
723 
            cur[-num_cur_op].type |= type | OPTYPE_DIS;
724 
      num_cur_op--;
725 
    }
726 
    cur[-1].type |= OPTYPE_OP;
727 
          debug(9, ">%08X %08X\n", cur->type, cur->data);
728 24 jeremybenn 
          type = 0;
729 
          i++;
730 
          args++;
731 
        }
732 
      else if (*args == OPERAND_DELIM)
733 
        {
734 
          cur--;
735 
          cur->type = type | cur->type | OPTYPE_OP;
736 
          debug (9, ">%08lX %08lX\n", cur->type, cur->data);
737 
          cur++;
738 
          type = 0;
739 
          i++;
740 
          args++;
741 
        }
742 
      else if (*args == '0')
743 
        {
744 
          cur->type = type;
745 
          cur->data = 0;
746 
          debug (9, ">%08lX %08lX\n", cur->type, cur->data);
747 
          cur++;
748 
          type = 0;
749 
          i++;
750 
          args++;
751 
        }
752 
      else if (*args == ')')
753 
        args++;
754 
      else
755 
        {
756 
          fprintf (stderr, "%s : parse error in args.\n", opcode->name);
757 
          exit (1);
758 
        }
759 
    }
760 
 
761 
  cur--;
762 
  cur->type = type | cur->type | OPTYPE_OP | OPTYPE_LAST;
763 
  debug (9, "#%08lX %08lX\n", cur->type, cur->data);
764 
  cur++;
765 
 
766 
  return cur;
767 
}
768 
 
769 
/* Constructs new automata based on or32_opcodes array.  */
770 
 
771 
void
772 
build_automata (void)
773 
{
774 
  unsigned int i;
775 
  unsigned long *end;
776 
  struct insn_op_struct *cur;
777 
 
778 
  automata = malloc (MAX_AUTOMATA_SIZE * sizeof (unsigned long));
779 
  ti = malloc (sizeof (struct temp_insn_struct) * or32_num_opcodes);
780 
 
781 
  nuncovered = or32_num_opcodes;
782 
  printf ("Building automata... ");
783 
  /* Build temporary information about instructions.  */
784 
  for (i = 0; i < or32_num_opcodes; i++)
785 
    {
786 
      unsigned long ones, zeros;
787 
      char *encoding = or32_opcodes[i].encoding;
788 
 
789 
      ones  = insn_extract('1', encoding);
790 
      zeros = insn_extract('0', encoding);
791 
 
792 
      ti[i].insn_mask = ones | zeros;
793 
      ti[i].insn = ones;
794 
      ti[i].in_pass = curpass = 0;
795 
 
796 
      /*debug(9, "%s: %s %08X %08X\n", or32_opcodes[i].name,
797 
        or32_opcodes[i].encoding, ti[i].insn_mask, ti[i].insn);*/
798 
    }
799 
 
800 
  /* Until all are covered search for best criteria to separate them.  */
801 
  end = cover_insn (automata, curpass, 0xFFFFFFFF);
802 
 
803 
  if (end - automata > MAX_AUTOMATA_SIZE)
804 
    {
805 
      fprintf (stderr, "Automata too large. Increase MAX_AUTOMATA_SIZE.");
806 
      exit (1);
807 
    }
808 
 
809 
  printf ("done, num uncovered: %i/%i.\n", nuncovered, or32_num_opcodes);
810 
  printf ("Parsing operands data... ");
811 
 
812 
  op_data = malloc (MAX_OP_TABLE_SIZE * sizeof (struct insn_op_struct));
813 
  op_start = malloc (or32_num_opcodes * sizeof (struct insn_op_struct *));
814 
  cur = op_data;
815 
 
816 
  for (i = 0; i < or32_num_opcodes; i++)
817 
    {
818 
      op_start[i] = cur;
819 
      cur = parse_params (&or32_opcodes[i], cur);
820 
 
821 
      if (cur - op_data > MAX_OP_TABLE_SIZE)
822 
        {
823 
          fprintf (stderr, "Operands table too small, increase MAX_OP_TABLE_SIZE.\n");
824 
          exit (1);
825 
        }
826 
    }
827 
  printf ("done.\n");
828 
}
829 
 
830 
void
831 
destruct_automata (void)
832 
{
833 
  free (ti);
834 
  free (automata);
835 
  free (op_data);
836 
  free (op_start);
837 
}
838 
 
839 
/* Decodes instruction and returns instruction index.  */
840 
 
841 
int
842 
insn_decode (unsigned int insn)
843 
{
844 
  unsigned long *a = automata;
845 
  int i;
846 
 
847 
  while (!(*a & LEAF_FLAG))
848 
    {
849 
      unsigned int first = *a;
850 
 
851 
      debug (9, "%li ", (long)(a - automata));
852 
 
853 
      a++;
854 
      i = (insn >> first) & *a;
855 
      a++;
856 
      if (!*(a + i))
857 
        {
858 
          /* Invalid instruction found?  */
859 
          debug (9, "XXX\n");
860 
          return -1;
861 
        }
862 
      a = automata + *(a + i);
863 
    }
864 
 
865 
  i = *a & ~LEAF_FLAG;
866 
 
867 
  debug (9, "%i\n", i);
868 
 
869 
  /* Final check - do we have direct match?
870 
     (based on or32_opcodes this should be the only possibility,
871 
     but in case of invalid/missing instruction we must perform a check)  */
872 
  if ((ti[i].insn_mask & insn) == ti[i].insn)
873 
    return i;
874 
  else
875 
    return -1;
876 
}
877 
 
878 
static char disassembled_str[50];
879 
char *disassembled = &disassembled_str[0];
880 
 
881 
/* Automagically does zero- or sign- extension and also finds correct
882 
   sign bit position if sign extension is correct extension. Which extension
883 
   is proper is figured out from letter description.  */
884 
 
885 225 jeremybenn 
unsigned long
886 24 jeremybenn 
extend_imm (unsigned long imm, char l)
887 
{
888 
  unsigned long mask;
889 
  int letter_bits;
890 
 
891 
  /* First truncate all bits above valid range for this letter
892 
     in case it is zero extend.  */
893 
  letter_bits = letter_range (l);
894 
  mask = (1 << letter_bits) - 1;
895 
  imm &= mask;
896 
 
897 
  /* Do sign extend if this is the right one.  */
898 
  if (letter_signed(l) && (imm >> (letter_bits - 1)))
899 
    imm |= (~mask);
900 
 
901 
  return imm;
902 
}
903 
 
904 
static unsigned long
905 
or32_extract (char param_ch, char *enc_initial, unsigned long insn)
906 
{
907 
  char *enc;
908 
  unsigned long ret = 0;
909 
  int opc_pos = 0;
910 
  int param_pos = 0;
911 
 
912 
  for (enc = enc_initial; *enc != '\0'; enc++)
913 
    if (*enc == param_ch)
914 
      {
915 
        if (enc - 2 >= enc_initial && (*(enc - 2) == '0') && (*(enc - 1) == 'x'))
916 
          continue;
917 
        else
918 
          param_pos++;
919 
      }
920 
 
921 
#if DEBUG
922 
  printf ("or32_extract: %x ", param_pos);
923 
#endif
924 
  opc_pos = 32;
925 
 
926 
  for (enc = enc_initial; *enc != '\0'; )
927 
    if ((*enc == '0') && (*(enc + 1) == 'x'))
928 
      {
929 
        opc_pos -= 4;
930 
        if ((param_ch == '0') || (param_ch == '1'))
931 
          {
932 
            unsigned long tmp = strtol (enc, NULL, 16);
933 
#if DEBUG
934 
            printf (" enc=%s, tmp=%x ", enc, tmp);
935 
#endif
936 
            if (param_ch == '0')
937 
              tmp = 15 - tmp;
938 
            ret |= tmp << opc_pos;
939 
          }
940 
        enc += 3;
941 
      }
942 
    else if ((*enc == '0') || (*enc == '1'))
943 
      {
944 
        opc_pos--;
945 
        if (param_ch == *enc)
946 
          ret |= 1 << opc_pos;
947 
        enc++;
948 
      }
949 
    else if (*enc == param_ch)
950 
      {
951 
        opc_pos--;
952 
        param_pos--;
953 
#if DEBUG
954 
        printf ("\n  ret=%x opc_pos=%x, param_pos=%x\n", ret, opc_pos, param_pos);
955 
#endif
956 
        if (ISLOWER (param_ch))
957 
          ret -= ((insn >> opc_pos) & 0x1) << param_pos;
958 
        else
959 
          ret += ((insn >> opc_pos) & 0x1) << param_pos;
960 
        enc++;
961 
      }
962 
    else if (ISALPHA (*enc))
963 
      {
964 
        opc_pos--;
965 
        enc++;
966 
      }
967 
    else if (*enc == '-')
968 
      {
969 
        opc_pos--;
970 
        enc++;
971 
      }
972 
    else
973 
      enc++;
974 
 
975 
#if DEBUG
976 
  printf ("ret=%x\n", ret);
977 
#endif
978 
  return ret;
979 
}
980 
 
981 
/* Print register. Used only by print_insn.  */
982 
 
983 225 jeremybenn 
static char *
984 
or32_print_register (char *dest, char param_ch, char *encoding, unsigned long insn)
985 24 jeremybenn 
{
986 
  int regnum = or32_extract(param_ch, encoding, insn);
987 
 
988 225 jeremybenn 
  sprintf (dest, "r%d", regnum);
989 
  while (*dest) dest++;
990 
  return dest;
991 24 jeremybenn 
}
992 
 
993 
/* Print immediate. Used only by print_insn.  */
994 
 
995 225 jeremybenn 
static char *
996 
or32_print_immediate (char *dest, char param_ch, char *encoding, unsigned long insn)
997 24 jeremybenn 
{
998 
  int imm = or32_extract (param_ch, encoding, insn);
999 
 
1000 
  imm = extend_imm (imm, param_ch);
1001 225 jeremybenn 
 
1002 24 jeremybenn 
  if (letter_signed (param_ch))
1003 
    {
1004 
      if (imm < 0)
1005 225 jeremybenn 
        sprintf (dest, "%d", imm);
1006 24 jeremybenn 
      else
1007 225 jeremybenn 
        sprintf (dest, "0x%x", imm);
1008 24 jeremybenn 
    }
1009 
  else
1010 225 jeremybenn 
    sprintf (dest, "%#x", imm);
1011 
  while (*dest) dest++;
1012 
  return dest;
1013 24 jeremybenn 
}
1014 
 
1015 225 jeremybenn 
/* Disassemble one instruction from insn index.
1016 24 jeremybenn 
   Return the size of the instruction.  */
1017 225 jeremybenn 
 
1018 24 jeremybenn 
int
1019 225 jeremybenn 
disassemble_index (insn, index)
1020 
     unsigned long insn;
1021 
     int index;
1022 24 jeremybenn 
{
1023 225 jeremybenn 
  char *dest = disassembled;
1024 24 jeremybenn 
 
1025 
  if (index >= 0)
1026 
    {
1027 
      struct or32_opcode const *opcode = &or32_opcodes[index];
1028 
      char *s;
1029 
 
1030 225 jeremybenn 
      strcpy (dest, opcode->name);
1031 
      while (*dest) dest++;
1032 
      *dest++ = ' ';
1033 
      *dest = 0;
1034 
 
1035 24 jeremybenn 
      for (s = opcode->args; *s != '\0'; ++s)
1036 
        {
1037 
          switch (*s)
1038 
            {
1039 
            case '\0':
1040 225 jeremybenn 
              return insn_len (insn);
1041 24 jeremybenn 
 
1042 
            case 'r':
1043 225 jeremybenn 
              dest = or32_print_register(dest, *++s, opcode->encoding, insn);
1044 24 jeremybenn 
              break;
1045 
 
1046 
            default:
1047 
              if (strchr (opcode->encoding, *s))
1048 225 jeremybenn 
                dest = or32_print_immediate (dest, *s, opcode->encoding, insn);
1049 
              else {
1050 
                *dest++ = *s;
1051 
                *dest = 0;
1052 
              }
1053 24 jeremybenn 
            }
1054 
        }
1055 
    }
1056 
  else
1057 
    {
1058 
      /* This used to be %8x for binutils.  */
1059 225 jeremybenn 
      sprintf(dest, ".word 0x%08lx", insn);
1060 
      while (*dest) dest++;
1061 24 jeremybenn 
    }
1062 
 
1063 
  return insn_len (insn);
1064 
}
1065 225 jeremybenn 
 
1066 
/* Disassemble one instruction from insn to disassemble.
1067 
   Return the size of the instruction.  */
1068 
 
1069 
int
1070 
disassemble_insn (unsigned long insn)
1071 
{
1072 
  return disassemble_index (insn, insn_decode (insn));
1073 
}
1074 
 

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