/* Utility macros to handle Java(TM) byte codes.
- Copyright (C) 1996, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1998, 1999, 2003, 2007 Free Software Foundation, Inc.
-This program is free software; you can redistribute it and/or modify
+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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-This program is distributed in the hope that it will be useful,
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>.
Java and all Java-based marks are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries.
/* Written by Per Bothner <bothner@cygnus.com>, February 1996. */
-#ifndef JAVAOP_H
-#define JAVAOP_H
+#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, suiteable for Java's 'long'. */
+/* 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;
-#ifdef __STDC__
typedef signed char jbyte;
-#else
-typedef char jbyte;
-#endif
typedef int16 jshort;
typedef int32 jint;
typedef int64 jlong;
typedef void* jref;
-/* A 32-bit IEEE single-precision float. */
-#ifndef jfloat
-#define jfloat float
-#endif
-
-/* A 32-bit IEEE double-precision float. */
-#ifndef jdouble
-#define jdouble double
-#endif
-
-union Word {
- jint i;
- jfloat f;
- void *p;
-};
+/* 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
#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_s4
#define IMMEDIATE_s4 (PC+=4, CHECK_PC_IN_RANGE(PC), \
- ((jint)((BCODE[PC-4] << 24) | (BCODE[PC-3] << 16) \
+ (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)
-{ union Word wu;
- wu.i = w;
- return wu.f;
+{
+ 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
return ((jlong) hi << 32) | ((jlong)lo & (((jlong)1 << 32) -1));
}
-union DWord {
- jdouble d;
- jlong l;
- jword w[2];
-};
-
static inline jdouble
WORDS_TO_DOUBLE(jword hi, jword lo)
-{ union DWord wu;
- wu.l = WORDS_TO_LONG(hi, lo);
- return wu.d;
+{
+ 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,
: ((PREFIX_CHAR) & 0x10) == 0 ? 3 \
: ((PREFIX_CHAR) & 0x08) == 0 ? 4 : 5)
-#endif /* !JAVAOP_H */
+#endif /* ! GCC_JAVAOP_H */
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