/* ----> DO NOT REMOVE THE FOLLOWING NOTICE <---- | |
Copyright (c) 2014-2015 Datalight, Inc. | |
All Rights Reserved Worldwide. | |
This program is free software; you can redistribute it and/or modify | |
it under the terms of the GNU General Public License as published by | |
the Free Software Foundation; use version 2 of the License. | |
This program is distributed in the hope that it will be useful, | |
but "AS-IS," WITHOUT ANY WARRANTY; without even the implied warranty | |
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
GNU General Public License for more details. | |
You should have received a copy of the GNU General Public License along | |
with this program; if not, write to the Free Software Foundation, Inc., | |
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
*/ | |
/* Businesses and individuals that for commercial or other reasons cannot | |
comply with the terms of the GPLv2 license may obtain a commercial license | |
before incorporating Reliance Edge into proprietary software for | |
distribution in any form. Visit http://www.datalight.com/reliance-edge for | |
more information. | |
*/ | |
/** @file | |
@brief Implements utilities for performing endian swaps. | |
*/ | |
#include <redfs.h> | |
#ifdef REDCONF_ENDIAN_SWAP | |
/** @brief Reverse the byte order of a 64-bit number. | |
@param ullToRev Number whose bytes will be reversed | |
@retval @p ullToRev with its bytes reversed. | |
*/ | |
uint64_t RedRev64( | |
uint64_t ullToRev) | |
{ | |
uint64_t ullRet = ullToRev; | |
ullRet = ((ullRet & UINT64_SUFFIX(0x00000000FFFFFFFF)) << 32U) | ((ullRet & UINT64_SUFFIX(0xFFFFFFFF00000000)) >> 32U); | |
ullRet = ((ullRet & UINT64_SUFFIX(0x0000FFFF0000FFFF)) << 16U) | ((ullRet & UINT64_SUFFIX(0xFFFF0000FFFF0000)) >> 16U); | |
ullRet = ((ullRet & UINT64_SUFFIX(0x00FF00FF00FF00FF)) << 8U) | ((ullRet & UINT64_SUFFIX(0xFF00FF00FF00FF00)) >> 8U); | |
return ullRet; | |
} | |
/** @brief Reverse the byte order of a 32-bit number. | |
@param ulToRev Number whose bytes will be reversed | |
@retval @p ulToRev with its bytes reversed. | |
*/ | |
uint32_t RedRev32( | |
uint32_t ulToRev) | |
{ | |
return ((ulToRev & 0x000000FFU) << 24U) | |
| ((ulToRev & 0x0000FF00U) << 8U) | |
| ((ulToRev & 0x00FF0000U) >> 8U) | |
| ((ulToRev & 0xFF000000U) >> 24U); | |
} | |
/** @brief Reverse the byte order of a 16-bit number. | |
@param uToRev Number whose bytes will be reversed | |
@retval @p uToRev with its bytes reversed. | |
*/ | |
uint16_t RedRev16( | |
uint16_t uToRev) | |
{ | |
return ((uToRev & 0xFF00U) >> 8U) | |
| ((uToRev & 0x00FFU) << 8U); | |
} | |
#endif | |