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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-s390/] [byteorder.h] - Blame information for rev 1276

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1 1276 phoenix
#ifndef _S390_BYTEORDER_H
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#define _S390_BYTEORDER_H
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/*
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 *  include/asm-s390/byteorder.h
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 *
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 *  S390 version
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 *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
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 *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
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 */
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#include <asm/types.h>
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#ifdef __GNUC__
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static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
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{
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  __u32 temp;
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  __asm__ __volatile__ (
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          "        st    %0,0(%1)\n"
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          "        icm   %0,8,3(%1)\n"
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          "        icm   %0,4,2(%1)\n"
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          "        icm   %0,2,1(%1)\n"
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          "        ic    %0,0(%1)"
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          : "+&d" (x) : "a" (&temp) : "cc" );
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  return x;
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}
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static __inline__ __const__ __u32 ___arch__swab32p(__u32 *x)
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{
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  __u32 result;
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  __asm__ __volatile__ (
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          "        icm   %0,8,3(%1)\n"
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          "        icm   %0,4,2(%1)\n"
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          "        icm   %0,2,1(%1)\n"
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          "        ic    %0,0(%1)"
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          : "=&d" (result) : "a" (x) : "cc" );
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  return result;
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}
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static __inline__ void ___arch__swab32s(__u32 *x)
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{
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  __asm__ __volatile__ (
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          "        icm   0,8,3(%0)\n"
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          "        icm   0,4,2(%0)\n"
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          "        icm   0,2,1(%0)\n"
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          "        ic    0,0(%0)\n"
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          "        st    0,0(%0)"
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          : : "a" (x) : "0", "memory", "cc");
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}
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static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
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{
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  __u16 temp;
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  __asm__ __volatile__ (
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          "        sth   %0,0(%1)\n"
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          "        icm   %0,2,1(%1)\n"
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          "        ic    %0,0(%1)\n"
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          : "+&d" (x) : "a" (&temp) : "memory", "cc" );
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  return x;
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}
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static __inline__ __const__ __u16 ___arch__swab16p(__u16 *x)
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{
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  __u16 result;
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  __asm__ __volatile__ (
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          "        sr    %0,%0\n"
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          "        icm   %0,2,1(%1)\n"
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          "        ic    %0,0(%1)\n"
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          : "=&d" (result) : "a" (x) : "cc" );
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  return result;
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}
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static __inline__ void ___arch__swab16s(__u16 *x)
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{
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  __asm__ __volatile__(
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          "        icm   0,2,1(%0)\n"
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          "        ic    0,0(%0)\n"
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          "        sth   0,0(%0)"
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          : : "a" (x) : "0", "memory", "cc" );
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}
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#define __arch__swab32(x) ___arch__swab32(x)
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#define __arch__swab16(x) ___arch__swab16(x)
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#define __arch__swab32p(x) ___arch__swab32p(x)
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#define __arch__swab16p(x) ___arch__swab16p(x)
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#define __arch__swab32s(x) ___arch__swab32s(x)
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#define __arch__swab16s(x) ___arch__swab16s(x)
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#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
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#  define __BYTEORDER_HAS_U64__
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#  define __SWAB_64_THRU_32__
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#endif
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#endif /* __GNUC__ */
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#include <linux/byteorder/big_endian.h>
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#endif /* _S390_BYTEORDER_H */

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