URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc4/] [gcc/] [java/] [javaop.h] - Rev 659
Go to most recent revision | Compare with Previous | Blame | View Log
/* Utility macros to handle Java(TM) byte codes. Copyright (C) 1996, 1998, 1999, 2003, 2007 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 3, 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 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. 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 */
Go to most recent revision | Compare with Previous | Blame | View Log