1///////////////////////////////////////////////////////////////////////////////
2//
3/// \file       crc_macros.h
4/// \brief      Some endian-dependent macros for CRC32 and CRC64
5//
6//  Author:     Lasse Collin
7//
8//  This file has been put into the public domain.
9//  You can do whatever you want with this file.
10//
11///////////////////////////////////////////////////////////////////////////////
12
13#ifdef WORDS_BIGENDIAN
14#	define A(x) ((x) >> 24)
15#	define B(x) (((x) >> 16) & 0xFF)
16#	define C(x) (((x) >> 8) & 0xFF)
17#	define D(x) ((x) & 0xFF)
18
19#	define S8(x) ((x) << 8)
20#	define S32(x) ((x) << 32)
21
22#else
23#	define A(x) ((x) & 0xFF)
24#	define B(x) (((x) >> 8) & 0xFF)
25#	define C(x) (((x) >> 16) & 0xFF)
26#	define D(x) ((x) >> 24)
27
28#	define S8(x) ((x) >> 8)
29#	define S32(x) ((x) >> 32)
30#endif
31