ootp/urd/byte.h

43 lines
1.9 KiB
C

/*
* Copyright (c) 2009 Mark Fullmer
* Copyright (c) 2009 Mark Fullmer and the Ohio State University
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: byte.h 13 2009-11-26 16:37:03Z maf $
*/
#define SWAPINT16(y) y = \
( (((y)&0xff)<<8) | (((y)&0xff00)>>8) );
#define SWAPINT64(x) x = \
((((x) & 0xff00000000000000ull) >> 56)|\
(((x) & 0x00ff000000000000ull)>>40)|\
(((x) & 0x0000ff0000000000ull)>>24)|\
(((x) & 0x000000ff00000000ull)>>8)|\
(((x) & 0x00000000ff000000ull)<<8)|\
(((x) & 0x0000000000ff0000ull)<<24)|\
(((x) & 0x000000000000ff00ull)<<40)|\
(((x) & 0x00000000000000ffull)<<56));