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- #ifndef _ASM_X86_SWAB_H
- #define _ASM_X86_SWAB_H
- #include <linux/types.h>
- static __inline__ __u32 __arch_swab32(__u32 val)
- {
- __asm__("bswapl %0" : "=r" (val) : "0" (val));
- return val;
- }
- #define __arch_swab32 __arch_swab32
- static __inline__ __u64 __arch_swab64(__u64 val)
- {
- #ifdef __i386__
- union {
- struct {
- __u32 a;
- __u32 b;
- } s;
- __u64 u;
- } v;
- v.u = val;
- __asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
- : "=r" (v.s.a), "=r" (v.s.b)
- : "0" (v.s.a), "1" (v.s.b));
- return v.u;
- #else /* __i386__ */
- __asm__("bswapq %0" : "=r" (val) : "0" (val));
- return val;
- #endif
- }
- #define __arch_swab64 __arch_swab64
- #endif /* _ASM_X86_SWAB_H */
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