xenoborg/alpha/source/x86/include/endian.h
blueshogun96@gmail.com e140504ee8
2012-01-05 00:09:50 +00:00

66 lines
No EOL
1.5 KiB
C

#ifndef _ENDIAN_H
#define _ENDIAN_H
#define __LITTLE_ENDIAN 1234
#define __BIG_ENDIAN 4321
#if defined(__i386__) || defined(__x86_64__) || defined(__ia64__)
#define __BYTE_ORDER __LITTLE_ENDIAN
#define __FLOAT_WORD_ORDER __BYTE_ORDER
#endif
#ifdef __sparc__
#define __BYTE_ORDER __BIG_ENDIAN
#define __FLOAT_WORD_ORDER __BYTE_ORDER
#endif
#ifdef __hppa__
/* I hope this is correct...? */
#define __BYTE_ORDER __BIG_ENDIAN
#define __FLOAT_WORD_ORDER __BYTE_ORDER
#endif
#ifdef __mips__
#ifdef __MIPSEB__
#define __BYTE_ORDER __BIG_ENDIAN
#define __FLOAT_WORD_ORDER __BYTE_ORDER
#endif
#endif
#ifndef __BYTE_ORDER
#ifdef __BIG_ENDIAN__
#define __BYTE_ORDER __BIG_ENDIAN
#define __FLOAT_WORD_ORDER __BYTE_ORDER
#else
#define __BYTE_ORDER __LITTLE_ENDIAN
#define __FLOAT_WORD_ORDER __BYTE_ORDER
#endif
#endif
#define LITTLE_ENDIAN __LITTLE_ENDIAN
#define BIG_ENDIAN __BIG_ENDIAN
#define BYTE_ORDER __BYTE_ORDER
#if __BYTE_ORDER == __LITTLE_ENDIAN
# define __LONG_LONG_PAIR(HI, LO) LO, HI
#elif __BYTE_ORDER == __BIG_ENDIAN
# define __LONG_LONG_PAIR(HI, LO) HI, LO
#endif
#if defined(__alpha__) || defined(__mips64) || defined(__sparc_v9__) || defined(__x86_64__) || defined(__ia64__)
#define __WORDSIZE 64
#endif
#if defined(__x86_64__) || defined(__powerpc64__) || defined(__sparc_v9__)
#define __WORDSIZE_COMPAT32 1
#endif
#if defined(__sparc__) && (__arch64__)
#define __WORDSIZE 64
#endif
#ifndef __WORDSIZE
#define __WORDSIZE 32
#endif
#endif