include/asm-sh64/byteorder.h

   1 #ifndef __ASM_SH64_BYTEORDER_H
   2 #define __ASM_SH64_BYTEORDER_H
   3
   4 /*
   5  * This file is subject to the terms and conditions of the GNU General Public
   6  * License.  See the file "COPYING" in the main directory of this archive
   7  * for more details.
   8  *
   9  * include/asm-sh64/byteorder.h
  10  *
  11  * Copyright (C) 2000, 2001  Paolo Alberelli
  12  *
  13  */
  14
  15 #include <asm/types.h>
  16
  17 static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
  18 {
  19         __asm__("byterev        %0, %0\n\t"
  20                 "shari          %0, 32, %0"
  21                 : "=r" (x)
  22                 : "0" (x));
  23         return x;
  24 }
  25
  26 static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
  27 {
  28         __asm__("byterev        %0, %0\n\t"
  29                 "shari          %0, 48, %0"
  30                 : "=r" (x)
  31                 : "0" (x));
  32         return x;
  33 }
  34
  35 #define __arch__swab32(x) ___arch__swab32(x)
  36 #define __arch__swab16(x) ___arch__swab16(x)
  37
  38 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
  39 #  define __BYTEORDER_HAS_U64__
  40 #  define __SWAB_64_THRU_32__
  41 #endif
  42
  43 #ifdef __LITTLE_ENDIAN__
  44 #include <linux/byteorder/little_endian.h>
  45 #else
  46 #include <linux/byteorder/big_endian.h>
  47 #endif
  48
  49 #endif /* __ASM_SH64_BYTEORDER_H */