linux/arch/m68k/include/uapi/asm/swab.h
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   1#ifndef _M68K_SWAB_H
   2#define _M68K_SWAB_H
   3
   4#include <linux/types.h>
   5#include <linux/compiler.h>
   6
   7#define __SWAB_64_THRU_32__
   8
   9#if defined (__mcfisaaplus__) || defined (__mcfisac__)
  10static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
  11{
  12        __asm__("byterev %0" : "=d" (val) : "0" (val));
  13        return val;
  14}
  15
  16#define __arch_swab32 __arch_swab32
  17#elif !defined(__mcoldfire__)
  18
  19static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
  20{
  21        __asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
  22        return val;
  23}
  24#define __arch_swab32 __arch_swab32
  25#endif
  26
  27#endif /* _M68K_SWAB_H */
  28