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| author | Daniel Schadt <kingdread@gmx.de> | 2025-04-11 10:16:04 +0200 |
|---|---|---|
| committer | Daniel Schadt <kingdread@gmx.de> | 2025-04-11 10:16:04 +0200 |
| commit | 34ed0189281fcca1921d4e3d762e6d9183d5230f (patch) | |
| tree | 649e9410660556e78fa687e50da9b0f0ec7281a6 | |
| parent | 1d5e3db348227d5658e11782b123139c1d5d5e25 (diff) | |
| download | zears-34ed0189281fcca1921d4e3d762e6d9183d5230f.tar.gz zears-34ed0189281fcca1921d4e3d762e6d9183d5230f.tar.bz2 zears-34ed0189281fcca1921d4e3d762e6d9183d5230f.zip | |
roll Block::mul back up
I've unrolled this earlier to speed up the computation for the commonly
used factors, but now we're precomputing the values anyway so there's no
reason to keep the code ugly.
| -rw-r--r-- | src/block.rs | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/src/block.rs b/src/block.rs index 8bf8647..c294aab 100644 --- a/src/block.rs +++ b/src/block.rs @@ -156,57 +156,6 @@ impl Mul<u32> for Block { } result } - 3 => { - let mut result = self << 1; - if self[0] & 0x80 != 0 { - result[15] ^= 0x87; - } - result ^ self - } - 4 => { - let mut result = self << 2; - if self[0] & 0x80 != 0 { - result[15] ^= 0x0E; - result[14] ^= 0x01; - } - if self[0] & 0x40 != 0 { - result[15] ^= 0x87; - } - result - } - 5 => { - let mut result = self << 2; - if self[0] & 0x80 != 0 { - result[15] ^= 0x0E; - result[14] ^= 0x01; - } - if self[0] & 0x40 != 0 { - result[15] ^= 0x87; - } - result ^ self - } - 6 => { - let mut result = self << 1; - if self[0] & 0x80 != 0 { - result[15] ^= 0x87; - } - result = result ^ self; - let mask = if result[0] & 0x80 != 0 { 0x87 } else { 0 }; - result = result << 1; - result[15] ^= mask; - result - } - 7 => { - let mut result = self << 1; - if self[0] & 0x80 != 0 { - result[15] ^= 0x87; - } - result = result ^ self; - let mask = if result[0] & 0x80 != 0 { 0x87 } else { 0 }; - result = result << 1; - result[15] ^= mask; - result ^ self - } _ if rhs % 2 == 0 => self * 2 * (rhs / 2), _ => self * (rhs - 1) ^ self, } |