LXR linux/arch/cris/include/arch-v10/arch/swab.h

   1#ifndef _CRIS_ARCH_SWAB_H
   2#define _CRIS_ARCH_SWAB_H
   3
   4#include <asm/types.h>
   5#include <linux/compiler.h>
   6
   7#define __SWAB_64_THRU_32__
   8
   9/* we just define these two (as we can do the swap in a single
  10 * asm instruction in CRIS) and the arch-independent files will put
  11 * them together into ntohl etc.
  12 */
  13
  14static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
  15{
  16        __asm__ ("swapwb %0" : "=r" (x) : "0" (x));
  17
  18        return(x);
  19}
  20#define __arch_swab32 __arch_swab32
  21
  22static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
  23{
  24        __asm__ ("swapb %0" : "=r" (x) : "0" (x));
  25
  26        return(x);
  27}
  28#define __arch_swab16 __arch_swab16
  29
  30#endif
  31