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#ifndef _S390_BYTEORDER_H
#define _S390_BYTEORDER_H
/*
* include/asm-s390/byteorder.h
*
* S390 version
* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
*/
#include <asm/types.h>
#ifdef __GNUC__
static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
{
__u32 temp;
__asm__ __volatile__ (
" st %0,0(%1)\n"
" icm %0,8,3(%1)\n"
" icm %0,4,2(%1)\n"
" icm %0,2,1(%1)\n"
" ic %0,0(%1)"
: "+&d" (x) : "a" (&temp) : "memory" );
return x;
}
static __inline__ __const__ __u32 ___arch__swab32p(__u32 *x)
{
__u32 result;
__asm__ __volatile__ (
" icm %0,8,3(%1)\n"
" icm %0,4,2(%1)\n"
" icm %0,2,1(%1)\n"
" ic %0,0(%1)"
: "=&d" (result) : "a" (x) );
return result;
}
static __inline__ void ___arch__swab32s(__u32 *x)
{
__asm__ __volatile__ (
" icm 0,8,3(%0)\n"
" icm 0,4,2(%0)\n"
" icm 0,2,1(%0)\n"
" ic 0,0(%0)\n"
" st 0,0(%0)"
: : "a" (x) : "0", "memory");
}
static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
{
__u16 temp;
__asm__ __volatile__ (
" sth %0,0(%1)\n"
" icm %0,2,1(%1)\n"
" ic %0,0(%1)\n"
: "+&d" (x) : "a" (&temp) : "memory");
return x;
}
static __inline__ __const__ __u16 ___arch__swab16p(__u16 *x)
{
__u16 result;
__asm__ __volatile__ (
" sr %0,%0\n"
" icm %0,2,1(%1)\n"
" ic %0,0(%1)\n"
: "=&d" (result) : "a" (x) );
return result;
}
static __inline__ void ___arch__swab16s(__u16 *x)
{
__asm__ __volatile__(
" icm 0,2,1(%0)\n"
" ic 0,0(%0)\n"
" sth 0,0(%0)"
: : "a" (x) : "0", "memory");
}
#define __arch__swab32(x) ___arch__swab32(x)
#define __arch__swab16(x) ___arch__swab16(x)
#define __arch__swab32p(x) ___arch__swab32p(x)
#define __arch__swab16p(x) ___arch__swab16p(x)
#define __arch__swab32s(x) ___arch__swab32s(x)
#define __arch__swab16s(x) ___arch__swab16s(x)
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
#endif
#endif /* __GNUC__ */
#include <linux/byteorder/big_endian.h>
#endif /* _S390_BYTEORDER_H */
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