byteorder.h

来自「Linux内核源代码 为压缩文件 是<<Linux内核>&gt」· C头文件 代码 · 共 41 行

#ifndef _ASM_IA64_BYTEORDER_H
#define _ASM_IA64_BYTEORDER_H

/*
 * Copyright (C) 1998, 1999 Hewlett-Packard Co
 * Copyright (C) 1998, 1999 David Mosberger-Tang <[e-mail]>
 */

#include <asm/types.h>

static __inline__ __const__ __u64
__ia64_swab64 (__u64 x)
{
	__u64 result;

	__asm__ ("mux1 %0=%1,@rev" : "=r" (result) : "r" (x));
	return result;
}

static __inline__ __const__ __u32
__ia64_swab32 (__u32 x)
{
	return __ia64_swab64 (x) >> 32;
}

static __inline__ __const__ __u16
__ia64_swab16(__u16 x)
{
	return __ia64_swab64 (x) >> 48;
}

#define __arch__swab64(x) __ia64_swab64 (x)
#define __arch__swab32(x) __ia64_swab32 (x)
#define __arch__swab16(x) __ia64_swab16 (x)

#define __BYTEORDER_HAS_U64__

#include <linux/byteorder/little_endian.h>

#endif /* _ASM_IA64_BYTEORDER_H */