include/asm-v850/byteorder.h

   1 /*
   2  * include/asm-v850/byteorder.h -- Endian id and conversion ops
   3  *
   4  *  Copyright (C) 2001  NEC Corporation
   5  *  Copyright (C) 2001  Miles Bader <miles@gnu.org>
   6  *
   7  * This file is subject to the terms and conditions of the GNU General
   8  * Public License.  See the file COPYING in the main directory of this
   9  * archive for more details.
  10  *
  11  * Written by Miles Bader <miles@gnu.org>
  12  */
  13
  14 #ifndef __V850_BYTEORDER_H__
  15 #define __V850_BYTEORDER_H__
  16
  17 #include <asm/types.h>
  18 #include <linux/compiler.h>
  19
  20 #ifdef __GNUC__
  21
  22 static __inline__ __attribute_const__ __u32 ___arch__swab32 (__u32 word)
  23 {
  24         __u32 res;
  25         __asm__ ("bsw %1, %0" : "=r" (res) : "r" (word));
  26         return res;
  27 }
  28
  29 static __inline__ __attribute_const__ __u16 ___arch__swab16 (__u16 half_word)
  30 {
  31         __u16 res;
  32         __asm__ ("bsh %1, %0" : "=r" (res) : "r" (half_word));
  33         return res;
  34 }
  35
  36 #define __arch__swab32(x) ___arch__swab32(x)
  37 #define __arch__swab16(x) ___arch__swab16(x)
  38
  39 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
  40 #  define __BYTEORDER_HAS_U64__
  41 #  define __SWAB_64_THRU_32__
  42 #endif
  43
  44 #endif /* __GNUC__ */
  45
  46 #include <linux/byteorder/little_endian.h>
  47
  48 #endif /* __V850_BYTEORDER_H__ */