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34 lines
850 B
C
34 lines
850 B
C
#ifndef _BYTESWAP_H_
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#define _BYTESWAP_H_
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/* Unfortunately not provided by newlib. */
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#include <types.h>
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static inline uint16_t bswap_16(uint16_t x)
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{
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return
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((((x) & 0xff00) >> 8) | (((x) & 0xff) << 8));
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}
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static inline uint32_t bswap_32(uint32_t x)
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{
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return
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((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) |
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(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24));
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}
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static inline uint64_t bswap_64(uint64_t x)
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{
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return
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((((x) & 0xff00000000000000ULL) >> 56) |
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(((x) & 0x00ff000000000000ULL) >> 40) |
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(((x) & 0x0000ff0000000000ULL) >> 24) |
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(((x) & 0x000000ff00000000ULL) >> 8) |
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(((x) & 0x00000000ff000000ULL) << 8) |
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(((x) & 0x0000000000ff0000ULL) << 24) |
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(((x) & 0x000000000000ff00ULL) << 40) |
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(((x) & 0x00000000000000ffULL) << 56));
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}
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#endif /* _BYTESWAP_H */
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