1 #ifndef _I386_BYTEORDER_H
2 #define _I386_BYTEORDER_H
9 static __inline__ __u32 ___arch__swab32(__u32 x)
11 __asm__("bswap %0" : "=r" (x) : "0" (x));
16 #define _constant_swab16(x) ((__u16)( \
17 (((__u16)(x) & (__u16)0x00ffU) << 8) | \
18 (((__u16)(x) & (__u16)0xff00U) >> 8)))
20 static __inline__ __u16 ___arch__swab16(__u16 x)
22 #if CONFIG_IS_ENABLED(X86_64)
23 return _constant_swab16(x);
25 __asm__("xchgb %b0,%h0" /* swap bytes */ \
32 #define __arch__swab32(x) ___arch__swab32(x)
33 #define __arch__swab16(x) ___arch__swab16(x)
35 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
36 # define __BYTEORDER_HAS_U64__
37 # define __SWAB_64_THRU_32__
42 #include <linux/byteorder/little_endian.h>
44 #endif /* _I386_BYTEORDER_H */