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#ifndef _BITS_BYTESWAP_H
#define _BITS_BYTESWAP_H 1
#define ___swab16(x) \
({ \
unsigned short __x = (x); \
((unsigned short)( \
(((unsigned short)(__x) & (unsigned short)0x00ffU) << 8) | \
(((unsigned short)(__x) & (unsigned short)0xff00U) >> 8) )); \
})
#define ___swab32(x) \
({ \
unsigned long __x = (x); \
((unsigned long)( \
(((unsigned long)(__x) & (unsigned long)0x000000ffUL) << 24) | \
(((unsigned long)(__x) & (unsigned long)0x0000ff00UL) << 8) | \
(((unsigned long)(__x) & (unsigned long)0x00ff0000UL) >> 8) | \
(((unsigned long)(__x) & (unsigned long)0xff000000UL) >> 24) )); \
})
/* these are CRIS specific */
static inline unsigned short __fswab16(unsigned short x)
{
__asm__ ("swapb %0" : "=r" (x) : "0" (x));
return(x);
}
static inline unsigned long __fswab32(unsigned long x)
{
__asm__ ("swapwb %0" : "=r" (x) : "0" (x));
return(x);
}
# define __bswap_16(x) \
(__builtin_constant_p((unsigned short)(x)) ? \
___swab16((x)) : \
__fswab16((x)))
# define __bswap_32(x) \
(__builtin_constant_p((unsigned long)(x)) ? \
___swab32((x)) : \
__fswab32((x)))
#endif /* _BITS_BYTESWAP_H */
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