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Fix CRC32 calculation on big endian CPU

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Fix regresion from 2.02.75 speedup - so currently crc32 is a little bit
more complicated on big-endian CPU as the uint32_t needs to be shifted
on here.
This commit is contained in:
Zdenek Kabelac 2011-02-08 12:41:08 +00:00
parent 0ea1e5c109
commit 2fdd451b19
2 changed files with 3 additions and 1 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.84 -
===================================
Fix CRC32 calculation on big endian CPU (2.02.75).
Version 2.02.83 - 4th February 2011
===================================

3
lib/misc/crc.c
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@ -16,6 +16,7 @@
#include "lib.h"
#include "crc.h"
#include "xlate.h"
/* Calculate an endian-independent CRC of supplied buffer */
#ifndef DEBUG_CRC32
@ -65,7 +66,7 @@ static uint32_t _calc_crc_new(uint32_t initial, const uint8_t *buf, uint32_t siz
/* Process 4 bytes per iteration */
while (start < end) {
crc = crc ^ *start++;
crc = crc ^ xlate32(*start++);
crc = crctab[crc & 0xff] ^ crc >> 8;
crc = crctab[crc & 0xff] ^ crc >> 8;
crc = crctab[crc & 0xff] ^ crc >> 8;