include/asm-sh/byteorder.h

   1 #ifndef __ASM_SH_BYTEORDER_H
   2 #define __ASM_SH_BYTEORDER_H
   3
   4 /*
   5  * Copyright (C) 1999  Niibe Yutaka
   6  */
   7
   8 #include <asm/types.h>
   9
  10 static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
  11 {
  12         __asm__("swap.b %0, %0\n\t"
  13                 "swap.w %0, %0\n\t"
  14                 "swap.b %0, %0"
  15                 : "=r" (x)
  16                 : "0" (x));
  17         return x;
  18 }
  19
  20 static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
  21 {
  22         __asm__("swap.b %0, %0"
  23                 : "=r" (x)
  24                 :  "0" (x));
  25         return x;
  26 }
  27
  28 #define __arch__swab32(x) ___arch__swab32(x)
  29 #define __arch__swab16(x) ___arch__swab16(x)
  30
  31 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
  32 #  define __BYTEORDER_HAS_U64__
  33 #  define __SWAB_64_THRU_32__
  34 #endif
  35
  36 #ifdef __LITTLE_ENDIAN__
  37 #include <linux/byteorder/little_endian.h>
  38 #else
  39 #include <linux/byteorder/big_endian.h>
  40 #endif
  41
  42 #endif /* __ASM_SH_BYTEORDER_H */