f88bb72f1
Eric Andersen
2004-01-29
Subject
Apply a couple of optimizations
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libbb/hash_fd.c+5 -3
| @@ -95,9 +95,9 @@ | |
| # define SHA1_MASK (SHA1_BLOCK_SIZE - 1) | |
| /* reverse byte order in 32-bit words */ | |
| - | # define ch(x,y,z) (((x) & (y)) ^ (~(x) & (z))) |
| - | # define parity(x,y,z) ((x) ^ (y) ^ (z)) |
| - | # define maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) |
| + | #define ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z)))) |
| + | #define parity(x,y,z) ((x) ^ (y) ^ (z)) |
| + | #define maj(x,y,z) (((x) & (y)) | ((z) & ((x) | (y)))) |
| /* A normal version as set out in the FIPS. This version uses */ | |
| /* partial loop unrolling and is optimised for the Pentium 4 */ | |
| @@ -276,6 +276,8 @@ void sha1_end(unsigned char hval[], sha1_ctx_t *ctx) | |
| /* Handle endian-ness */ | |
| # if __BYTE_ORDER == __LITTLE_ENDIAN | |
| # define SWAP(n) (n) | |
| + | # elif defined(bswap_32) |
| + | # define SWAP(n) bswap_32(n) |
| # else | |
| # define SWAP(n) ((n << 24) | ((n&65280)<<8) | ((n&16711680)>>8) | (n>>24)) | |
| # endif | |