1N/A#ifndef ETHERBOOT_BITS_BYTESWAP_H
1N/A#define ETHERBOOT_BITS_BYTESWAP_H
1N/A
1N/A#include "types.h"
1N/Astatic inline uint16_t __i386_bswap_16(uint16_t x)
1N/A{
1N/A __asm__("xchgb %b0,%h0\n\t"
1N/A : "=q" (x)
1N/A : "0" (x));
1N/A return x;
1N/A}
1N/A
1N/Astatic inline uint32_t __i386_bswap_32(uint32_t x)
1N/A{
1N/A __asm__("xchgb %b0,%h0\n\t"
1N/A "rorl $16,%0\n\t"
1N/A "xchgb %b0,%h0"
1N/A : "=q" (x)
1N/A : "0" (x));
1N/A return x;
1N/A}
1N/A
1N/A
1N/A#define __bswap_constant_16(x) \
1N/A ((uint16_t)((((uint16_t)(x) & 0x00ff) << 8) | \
1N/A (((uint16_t)(x) & 0xff00) >> 8)))
1N/A
1N/A#define __bswap_constant_32(x) \
1N/A ((uint32_t)((((uint32_t)(x) & 0x000000ffU) << 24) | \
1N/A (((uint32_t)(x) & 0x0000ff00U) << 8) | \
1N/A (((uint32_t)(x) & 0x00ff0000U) >> 8) | \
1N/A (((uint32_t)(x) & 0xff000000U) >> 24)))
1N/A
1N/A#define __bswap_16(x) \
1N/A (__builtin_constant_p(x) ? \
1N/A __bswap_constant_16(x) : \
1N/A __i386_bswap_16(x))
1N/A
1N/A
1N/A#define __bswap_32(x) \
1N/A (__builtin_constant_p(x) ? \
1N/A __bswap_constant_32(x) : \
1N/A __i386_bswap_32(x))
1N/A
1N/A
1N/A#endif /* ETHERBOOT_BITS_BYTESWAP_H */