53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
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// Emacs style mode select -*- C++ -*-
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//-----------------------------------------------------------------------------
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//
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// $Id:$
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// $Log:$
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//
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// DESCRIPTION:
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// Endianess handling, swapping 16bit and 32bit.
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//
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//-----------------------------------------------------------------------------
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#include "m_swap.h"
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// Needed for big endian.
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#ifdef __BIG_ENDIAN__
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// Swap 16bit, that is, MSB and LSB byte.
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unsigned short SwapSHORT(unsigned short x)
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{
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return
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((x>>8) & 0xff)
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| ((x<<8) & 0xff00);
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}
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// Swapping 32bit.
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unsigned long SwapLONG( unsigned long x)
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{
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return
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((x>>24) & 0xff)
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| ((x>>8) & 0xff00)
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| ((x<<8) & 0xff0000)
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| ((x<<24) & 0xff000000);
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}
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#endif
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