0,0 → 1,43 |
#ifndef _I386_BYTEORDER_H |
#define _I386_BYTEORDER_H |
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#include <asm/types.h> |
#include __DEV_CONFIG_H |
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#ifdef __GNUC__ |
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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; |
} |
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static __inline__ __const__ __u16 ___arch__swab16(__u16 x) |
{ |
__asm__("xchgb %b0,%h0" /* swap bytes */ \ |
: "=q" (x) \ |
: "0" (x)); \ |
return x; |
} |
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#define __arch__swab32(x) ___arch__swab32(x) |
#define __arch__swab16(x) ___arch__swab16(x) |
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#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) |
# define __BYTEORDER_HAS_U64__ |
# define __SWAB_64_THRU_32__ |
#endif |
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#endif /* __GNUC__ */ |
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#include <linux/byteorder/little_endian.h> |
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#endif /* _I386_BYTEORDER_H */ |