f6aac1c3b5
Moving include/sys NetBSD headers to /sys/sys Moving include/arch/*/ NetBSD headers to /sys/arch/*/include Change-Id: Ia1a45d4e83ab806c84093ec2b61bdbea9bed65a0
69 lines
2.4 KiB
C
69 lines
2.4 KiB
C
/* $NetBSD: byte_swap.h,v 1.15 2008/04/28 20:23:24 martin Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Charles M. Hannum.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _I386_BYTE_SWAP_H_
|
|
#define _I386_BYTE_SWAP_H_
|
|
|
|
#include <sys/types.h>
|
|
|
|
#ifdef __GNUC__
|
|
__BEGIN_DECLS
|
|
|
|
#define __BYTE_SWAP_U32_VARIABLE __byte_swap_u32_variable
|
|
static __inline uint32_t __byte_swap_u32_variable(uint32_t);
|
|
static __inline uint32_t
|
|
__byte_swap_u32_variable(uint32_t x)
|
|
{
|
|
__asm volatile (
|
|
"bswap %1"
|
|
: "=r" (x) : "0" (x));
|
|
return (x);
|
|
}
|
|
|
|
#define __BYTE_SWAP_U16_VARIABLE __byte_swap_u16_variable
|
|
static __inline uint16_t __byte_swap_u16_variable(uint16_t);
|
|
static __inline uint16_t
|
|
__byte_swap_u16_variable(uint16_t x)
|
|
{
|
|
__asm volatile ("rorw $8, %w1" : "=r" (x) : "0" (x));
|
|
return (x);
|
|
}
|
|
|
|
__END_DECLS
|
|
#elif defined(_KERNEL) || defined(_LKM)
|
|
#define __BYTE_SWAP_U32_VARIABLE __byte_swap_u32_variable
|
|
#define __BYTE_SWAP_U16_VARIABLE __byte_swap_u16_variable
|
|
uint32_t __byte_swap_u32_variable(uint32_t);
|
|
uint16_t __byte_swap_u16_variable(uint16_t);
|
|
#endif
|
|
|
|
#endif /* !_I386_BYTE_SWAP_H_ */
|