GerbilSoft/zlib-ng
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4 Commits

Author SHA1 Message Date
Hans Kristian Rosbach
06895bc1b3 Move crc32 C fallbacks to arch/generic 2024-01-19 15:22:34 +01:00
Nathan Moinvaziri
d43822b9a7 zlib 1.2.12 2022-06-13 15:58:03 +02:00
Mark Adler
856884022c Correct incorrect inputs provided to the CRC functions. 
The previous releases of zlib were not sensitive to incorrect CRC
inputs with bits set above the low 32. This commit restores that
behavior, so that applications with such bugs will continue to
operate as before.

Co-authored-by: Nathan Moinvaziri <nathan@nathanm.com>
 2022-05-25 12:04:35 +02:00
Nathan Moinvaziri
a6155234a2 Speed up software CRC-32 computation by a factor of 1.5 to 3. 
Use the interleaved method of Kadatch and Jenkins in order to make
use of pipelined instructions through multiple ALUs in a single
core. This also speeds up and simplifies the combination of CRCs,
and updates the functions to pre-calculate and use an operator for
CRC combination.

Co-authored-by: Nathan Moinvaziri <nathan@nathanm.com>
 2022-05-25 12:04:35 +02:00