xevion/easy7zip
1
0
Fork 0
mirror of https://github.com/Xevion/easy7zip.git synced 2025-12-08 12:07:03 -06:00
Code Issues Packages Projects Releases Wiki Activity

17.00

Browse Source
This commit is contained in:
Igor Pavlov
2017-04-30 00:00:00 +00:00
committed by Kornel
parent 603abd5528
commit 2efa10565a
442 changed files with 15479 additions and 8525 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
C/XzCrc64Opt.c
View File

@@ -1,5 +1,5 @@
/* XzCrc64Opt.c -- CRC64 calculation
2015-03-01 : Igor Pavlov : Public domain */
2017-04-03 : Igor Pavlov : Public domain */
#include "Precomp.h"
@@ -18,10 +18,10 @@ UInt64 MY_FAST_CALL XzCrc64UpdateT4(UInt64 v, const void *data, size_t size, con
{
UInt32 d = (UInt32)v ^ *(const UInt32 *)p;
v = (v >> 32)
^ table[0x300 + ((d ) & 0xFF)]
^ table[0x200 + ((d >> 8) & 0xFF)]
^ table[0x100 + ((d >> 16) & 0xFF)]
^ table[0x000 + ((d >> 24))];
^ (table + 0x300)[((d ) & 0xFF)]
^ (table + 0x200)[((d >> 8) & 0xFF)]
^ (table + 0x100)[((d >> 16) & 0xFF)]
^ (table + 0x000)[((d >> 24))];
}
for (; size > 0; size--, p++)
v = CRC_UPDATE_BYTE_2(v, *p);
@@ -56,10 +56,10 @@ UInt64 MY_FAST_CALL XzCrc64UpdateT1_BeT4(UInt64 v, const void *data, size_t size
{
UInt32 d = (UInt32)(v >> 32) ^ *(const UInt32 *)p;
v = (v << 32)
^ table[0x000 + ((d ) & 0xFF)]
^ table[0x100 + ((d >> 8) & 0xFF)]
^ table[0x200 + ((d >> 16) & 0xFF)]
^ table[0x300 + ((d >> 24))];
^ (table + 0x000)[((d ) & 0xFF)]
^ (table + 0x100)[((d >> 8) & 0xFF)]
^ (table + 0x200)[((d >> 16) & 0xFF)]
^ (table + 0x300)[((d >> 24))];
}
for (; size > 0; size--, p++)
v = CRC_UPDATE_BYTE_2_BE(v, *p);