byteorder.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:1k
- #ifndef __ASM_SH_BYTEORDER_H
- #define __ASM_SH_BYTEORDER_H
- /*
- * Copyright (C) 1999 Niibe Yutaka
- */
- #include <asm/types.h>
- static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
- {
- __asm__("swap.b %0, %0nt"
- "swap.w %0, %0nt"
- "swap.b %0, %0"
- : "=r" (x)
- : "0" (x));
- return x;
- }
- static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
- {
- __asm__("swap.b %0, %0"
- : "=r" (x)
- : "0" (x));
- return x;
- }
- #define __arch__swab32(x) ___arch__swab32(x)
- #define __arch__swab16(x) ___arch__swab16(x)
- #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
- # define __BYTEORDER_HAS_U64__
- # define __SWAB_64_THRU_32__
- #endif
- #ifdef __LITTLE_ENDIAN__
- #include <linux/byteorder/little_endian.h>
- #else
- #include <linux/byteorder/big_endian.h>
- #endif
- #endif /* __ASM_SH_BYTEORDER_H */