diff options
Diffstat (limited to 'src/libs/7zip/unix/C/7zCrcT8.c')
-rw-r--r-- | src/libs/7zip/unix/C/7zCrcT8.c | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/src/libs/7zip/unix/C/7zCrcT8.c b/src/libs/7zip/unix/C/7zCrcT8.c deleted file mode 100644 index cd80e262b..000000000 --- a/src/libs/7zip/unix/C/7zCrcT8.c +++ /dev/null @@ -1,43 +0,0 @@ -/* 7zCrcT8.c -- CRC32 calculation with 8 tables -2008-03-19 -Igor Pavlov -Public domain */ - -#include "7zCrc.h" - -#define kCrcPoly 0xEDB88320 -#define CRC_NUM_TABLES 8 - -UInt32 g_CrcTable[256 * CRC_NUM_TABLES]; - -void MY_FAST_CALL CrcGenerateTable() -{ - UInt32 i; - for (i = 0; i < 256; i++) - { - UInt32 r = i; - int j; - for (j = 0; j < 8; j++) - r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1)); - g_CrcTable[i] = r; - } - #if CRC_NUM_TABLES > 1 - for (; i < 256 * CRC_NUM_TABLES; i++) - { - UInt32 r = g_CrcTable[i - 256]; - g_CrcTable[i] = g_CrcTable[r & 0xFF] ^ (r >> 8); - } - #endif -} - -UInt32 MY_FAST_CALL CrcUpdateT8(UInt32 v, const void *data, size_t size, const UInt32 *table); - -UInt32 MY_FAST_CALL CrcUpdate(UInt32 v, const void *data, size_t size) -{ - return CrcUpdateT8(v, data, size, g_CrcTable); -} - -UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size) -{ - return CrcUpdateT8(CRC_INIT_VAL, data, size, g_CrcTable) ^ 0xFFFFFFFF; -} |