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ZLIB: More faster.

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This commit is contained in:
Jeroen van Rijn
2021-06-23 22:18:17 +02:00
parent 342adb627d
commit 1cfe226686
4 changed files with 58 additions and 14 deletions
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core/hash/crc.odin
+6 -3
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@@ -1,15 +1,18 @@
package hash
crc32 :: proc(data: []byte, seed := u32(0)) -> u32 #no_bounds_check {
@(optimization_mode="speed")
crc32 :: proc(data: []byte, seed := u32(0)) -> u32 {
result := ~u32(seed);
for b in data {
#no_bounds_check for b in data {
result = result>>8 ~ _crc32_table[(result ~ u32(b)) & 0xff];
}
return ~result;
}
@(optimization_mode="speed")
crc64 :: proc(data: []byte, seed := u32(0)) -> u64 #no_bounds_check {
result := ~u64(seed);
for b in data {
#no_bounds_check for b in data {
result = result>>8 ~ _crc64_table[(result ~ u64(b)) & 0xff];
}
return ~result;