]> git.zerfleddert.de Git - proxmark3-svn/blame_incremental - common/parity.h
CHG: "hf mf hardnested" - less printing
[proxmark3-svn] / common / parity.h
... / ...
CommitLineData
1//-----------------------------------------------------------------------------
2// This code is licensed to you under the terms of the GNU GPL, version 2 or,
3// at your option, any later version. See the LICENSE.txt file for the text of
4// the license.
5//-----------------------------------------------------------------------------
6// Generic CRC calculation code.
7//-----------------------------------------------------------------------------
8
9#ifndef __PARITY_H
10#define __PARITY_H
11
12#include <stdint.h>
13
14extern const uint8_t OddByteParity[256];
15
16static inline uint8_t oddparity8(uint8_t bt)
17{
18 return OddByteParity[bt];
19}
20
21
22extern const uint8_t EvenByteParity[256];
23
24static inline uint8_t evenparity8(const uint8_t bt)
25{
26 return EvenByteParity[bt];
27}
28
29
30static inline uint8_t evenparity32(uint32_t x)
31{
32 x ^= x >> 16;
33 x ^= x >> 8;
34 return EvenByteParity[x & 0xff];
35}
36
37
38#endif /* __PARITY_H */
Impressum, Datenschutz