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