1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/* Utility macros to handle Java(TM) byte codes.
Copyright (C) 1996, 1998, 1999, 2003 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
Java and all Java-based marks are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries.
The Free Software Foundation is independent of Sun Microsystems, Inc. */
/* Written by Per Bothner <bothner@cygnus.com>, February 1996. */
#ifndef GCC_JAVAOP_H
#define GCC_JAVAOP_H
typedef unsigned char uint8;
#ifndef int16
#if __SHRT_MAX__ == 32767
#define int16 short
#elif __INT_MAX__ == 32767
#define int16 int
#elif __LONG_MAX__ == 32767
#define int16 long
#else
#define int16 short
#endif
#endif
typedef unsigned int16 uint16;
#ifndef int32
#if __INT_MAX__ == 2147483647
#define int32 int
#elif __LONG_MAX__ == 2147483647
#define int32 long
#elif __SHRT_MAX__ == 2147483647
#define int32 short
#else
#define int32 int
#endif
#endif
typedef unsigned int32 uint32;
/* A signed 64-bit (or more) integral type, suitable for Java's 'long'. */
#ifndef int64
#if __LONG_MAX__ == 9223372036854775807LL
#define int64 long
#elif __LONG_LONG_MAX__ == 9223372036854775807LL
#define int64 long long
#else
#define int64 long long
#endif
#endif
/* An unsigned 64-bit (or more) integral type, same length as int64. */
#ifndef uint64
#define uint64 unsigned int64
#endif
typedef uint16 jchar;
typedef signed char jbyte;
typedef int16 jshort;
typedef int32 jint;
typedef int64 jlong;
typedef void* jref;
/* A 32-bit big-endian IEEE single-precision float. */
typedef struct _jfloat {
unsigned int negative : 1;
unsigned int exponent : 8;
unsigned int mantissa : 23;
} jfloat;
#define JFLOAT_FINITE(f) ((f).exponent != 0xFF)
#define JFLOAT_QNAN_MASK 0x400000
#define JFLOAT_EXP_BIAS 0x7f
/* A 32-bit big-endian IEEE double-precision float. */
typedef struct _jdouble {
unsigned int negative : 1;
unsigned int exponent : 11;
unsigned int mantissa0: 20;
unsigned int mantissa1: 32;
} jdouble;
#define JDOUBLE_FINITE(f) ((f).exponent != 0x7FF)
#define JDOUBLE_QNAN_MASK 0x80000 /* apply to mantissa0 */
#define JDOUBLE_EXP_BIAS 0x3ff
/* A jword is an unsigned integral type big enough for a 32-bit jint
or jfloat *or* a pointer. It is the type appropriate for stack
locations and local variables in a Java interpreter. */
#ifndef jword
#if defined (__LP64__) || defined (__alpha__) || defined (__MMIX__) \
|| (defined (_ARCH_PPC) && defined (__64BIT__)) \
|| defined (__powerpc64__) || defined (__s390x__) || defined (__x86_64__) \
|| defined (__sparcv9) || (defined (__sparc__) && defined (__arch64__))
#define jword uint64
#else
#define jword uint32
#endif
#endif
#ifndef IMMEDIATE_u1
#define IMMEDIATE_u1 (PC++, CHECK_PC_IN_RANGE(PC), BCODE[PC-1])
#endif
#ifndef IMMEDIATE_s1
#define IMMEDIATE_s1 (PC++, CHECK_PC_IN_RANGE(PC), (signed char)BCODE[PC-1])
#endif
#ifndef IMMEDIATE_s2
#define IMMEDIATE_s2 (PC+=2, CHECK_PC_IN_RANGE(PC), \
(signed char) BCODE[PC-2] * 256 + BCODE[PC-1])
#endif
#ifndef IMMEDIATE_u2
#define IMMEDIATE_u2 (PC+=2, CHECK_PC_IN_RANGE(PC),\
(BCODE[PC-2] * 256 + BCODE[PC-1]))
#endif
#ifndef IMMEDIATE_s4
#define IMMEDIATE_s4 (PC+=4, CHECK_PC_IN_RANGE(PC), \
(WORD_TO_INT((BCODE[PC-4] << 24) | (BCODE[PC-3] << 16) \
| (BCODE[PC-2] << 8) | (BCODE[PC-1]))))
#endif
static inline jfloat
WORD_TO_FLOAT(jword w)
{
jfloat f;
f.negative = (w & 0x80000000) >> 31;
f.exponent = (w & 0x7f800000) >> 23;
f.mantissa = (w & 0x007fffff);
return f;
}
/* Sign extend w. If the host on which this cross-compiler runs uses
a 64-bit type for jword the appropriate sign extension is
performed; if it's a 32-bit type the arithmetic does nothing but is
harmless. */
static inline jint
WORD_TO_INT(jword w)
{
jint n = w & 0xffffffff; /* Mask lower 32 bits. */
n ^= (jint)1 << 31;
n -= (jint)1 << 31; /* Sign extend lower 32 bits to upper. */
return n;
}
static inline jlong
WORDS_TO_LONG(jword hi, jword lo)
{
return ((jlong) hi << 32) | ((jlong)lo & (((jlong)1 << 32) -1));
}
static inline jdouble
WORDS_TO_DOUBLE(jword hi, jword lo)
{
jdouble d;
d.negative = (hi & 0x80000000) >> 31;
d.exponent = (hi & 0x7ff00000) >> 20;
d.mantissa0 = (hi & 0x000fffff);
d.mantissa1 = lo;
return d;
}
/* If PREFIX_CHAR is the first character of the Utf8 encoding of a character,
return the number of bytes taken by the encoding.
Return -1 for a continuation character. */
#define UT8_CHAR_LENGTH(PREFIX_CHAR) \
((unsigned char)(PREFIX_CHAR) < 128 ? 1 \
: ((PREFIX_CHAR) & 0x40) == 0 ? -1 \
: ((PREFIX_CHAR) & 0x20) == 0 ? 2 \
: ((PREFIX_CHAR) & 0x10) == 0 ? 3 \
: ((PREFIX_CHAR) & 0x08) == 0 ? 4 : 5)
#endif /* ! GCC_JAVAOP_H */
|
