projects / proxmark3-svn / blame
| Commit | Line | Data |
|---|---|---|
| e9281ae8 JH |
1 | //----------------------------------------------------------------------------- |
| 2 | // Copyright (C) 2010 Hector Martin "marcan" <marcan@marcansoft.com> | |
| 3 | // | |
| 4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
| 5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
| 6 | // the license. | |
| 7 | //----------------------------------------------------------------------------- | |
| 8 | // Endianness convenience functions | |
| 9 | //----------------------------------------------------------------------------- | |
| 10 | ||
| 11 | #ifndef PROXENDIAN_H__ | |
| 12 | #define PROXENDIAN_H__ | |
| 13 | ||
| 14 | #include <stdint.h> | |
| 15 | ||
| 16 | #ifdef WIN32 | |
| 17 | # define HOST_LITTLE_ENDIAN | |
| 18 | #else | |
| 19 | # include <sys/types.h> | |
| 20 | ||
| 21 | # if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN) | |
| 22 | # error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN | |
| 23 | # endif | |
| 24 | ||
| 25 | # if BYTE_ORDER == LITTLE_ENDIAN | |
| 26 | # define HOST_LITTLE_ENDIAN | |
| 27 | # endif | |
| 28 | #endif | |
| 29 | ||
| 30 | #ifdef HOST_LITTLE_ENDIAN | |
| 31 | # define le16(x) (x) | |
| 32 | # define le32(x) (x) | |
| 33 | #else | |
| 34 | ||
| 35 | static inline uint16_t le16(uint16_t v) | |
| 36 | { | |
| 37 | return (v>>8) | (v<<8); | |
| 38 | } | |
| 39 | ||
| 40 | static inline uint32_t le32(uint32_t v) | |
| 41 | { | |
| 42 | return (le16(v)<<16) | (le16(v>>16)); | |
| 43 | } | |
| 44 | #endif // HOST_LITTLE_ENDIAN | |
| 45 | ||
| 46 | #endif // PROXENDIAN_H__ |