| #ifndef _I386_BYTEORDER_H |
| #define _I386_BYTEORDER_H |
| |
| #include <asm/types.h> |
| |
| #ifdef __GNUC__ |
| |
| |
| static __inline__ __const__ __u32 ___arch__swab32(__u32 x) |
| { |
| #ifdef CONFIG_X86_BSWAP |
| __asm__("bswap %0" : "=r" (x) : "0" (x)); |
| #else |
| __asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */ |
| "rorl $16,%0\n\t" /* swap words */ |
| "xchgb %b0,%h0" /* swap higher bytes */ |
| :"=q" (x) |
| : "0" (x)); |
| #endif |
| return x; |
| } |
| |
| static __inline__ __const__ __u16 ___arch__swab16(__u16 x) |
| { |
| __asm__("xchgb %b0,%h0" /* swap bytes */ \ |
| : "=q" (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 |
| |
| #endif /* __GNUC__ */ |
| |
| #include <linux/byteorder/little_endian.h> |
| |
| #endif /* _I386_BYTEORDER_H */ |
