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| Commit | Line | Data |
|---|---|---|
| 2262cfee WD |
1 | #ifndef _I386_BYTEORDER_H |
| 2 | #define _I386_BYTEORDER_H | |
| 3 | ||
| 4 | #include <asm/types.h> | |
| 5 | ||
| 6 | #ifdef __GNUC__ | |
| 7 | ||
| 2262cfee | 8 | |
| 3ef96ded | 9 | static __inline__ __u32 ___arch__swab32(__u32 x) |
| 2262cfee WD |
10 | { |
| 11 | #ifdef CONFIG_X86_BSWAP | |
| 12 | __asm__("bswap %0" : "=r" (x) : "0" (x)); | |
| 13 | #else | |
| 14 | __asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */ | |
| 15 | "rorl $16,%0\n\t" /* swap words */ | |
| 16 | "xchgb %b0,%h0" /* swap higher bytes */ | |
| 17 | :"=q" (x) | |
| 18 | : "0" (x)); | |
| 19 | #endif | |
| 20 | return x; | |
| 21 | } | |
| 22 | ||
| 3ef96ded | 23 | static __inline__ __u16 ___arch__swab16(__u16 x) |
| 2262cfee WD |
24 | { |
| 25 | __asm__("xchgb %b0,%h0" /* swap bytes */ \ | |
| 26 | : "=q" (x) \ | |
| 27 | : "0" (x)); \ | |
| 28 | return x; | |
| 29 | } | |
| 30 | ||
| 31 | #define __arch__swab32(x) ___arch__swab32(x) | |
| 32 | #define __arch__swab16(x) ___arch__swab16(x) | |
| 33 | ||
| 34 | #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) | |
| 35 | # define __BYTEORDER_HAS_U64__ | |
| 36 | # define __SWAB_64_THRU_32__ | |
| 37 | #endif | |
| 38 | ||
| 39 | #endif /* __GNUC__ */ | |
| 40 | ||
| 41 | #include <linux/byteorder/little_endian.h> | |
| 42 | ||
| 43 | #endif /* _I386_BYTEORDER_H */ |