| 1 |
#define rotl(x,n) (((x) << ((word32)(n))) | ((x) >> (32 - (word32)(n)))) |
#define rotl32(x,n) (((x) << ((word32)(n))) | ((x) >> (32 - (word32)(n)))) |
| 2 |
#define rotr(x,n) (((x) >> ((word32)(n))) | ((x) << (32 - (word32)(n)))) |
#define rotr32(x,n) (((x) >> ((word32)(n))) | ((x) << (32 - (word32)(n)))) |
| 3 |
#define rotl16(x,n) (((x) << ((word16)(n))) | ((x) >> (16 - (word16)(n)))) |
#define rotl16(x,n) (((x) << ((word16)(n))) | ((x) >> (16 - (word16)(n)))) |
| 4 |
#define rotr16(x,n) (((x) >> ((word16)(n))) | ((x) << (16 - (word16)(n)))) |
#define rotr16(x,n) (((x) >> ((word16)(n))) | ((x) << (16 - (word16)(n)))) |
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#define byteswap(x) ((rotl(x, 8) & 0x00ff00ff) | (rotr(x, 8) & 0xff00ff00)) |
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#define byteswap_16(x) ((rotl16(x, 8) & 0x00ff) | (rotr16(x, 8) & 0xff00)) |
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| 5 |
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#define Bzero(x, y) memset(x, 0, y) |
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| 6 |
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/* Use hardware rotations.. when available */ |
| 7 |
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#ifdef swap32 |
| 8 |
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# define byteswap32(x) swap32(x) |
| 9 |
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#else |
| 10 |
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# ifdef swap_32 |
| 11 |
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# define byteswap32(x) swap_32(x) |
| 12 |
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# else |
| 13 |
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# ifdef bswap_32 |
| 14 |
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# define byteswap32(x) bswap_32(x) |
| 15 |
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# else |
| 16 |
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# define byteswap32(x) ((rotl32(x, 8) & 0x00ff00ff) | (rotr32(x, 8) & 0xff00ff00)) |
| 17 |
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# endif |
| 18 |
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# endif |
| 19 |
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#endif |
| 20 |
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| 21 |
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#ifdef swap16 |
| 22 |
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# define byteswap16(x) swap16(x) |
| 23 |
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#else |
| 24 |
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# ifdef swap_16 |
| 25 |
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# define byteswap16(x) swap_16(x) |
| 26 |
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# else |
| 27 |
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# ifdef bswap_16 |
| 28 |
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# define byteswap16(x) bswap_16(x) |
| 29 |
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# else |
| 30 |
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# define byteswap16(x) ((rotl16(x, 8) & 0x00ff) | (rotr16(x, 8) & 0xff00)) |
| 31 |
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# endif |
| 32 |
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# endif |
| 33 |
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#endif |
| 34 |
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| 35 |
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| 36 |
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#define Bzero(x, y) memset(x, 0, y) |
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