// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
// $Log:$
//
// DESCRIPTION:
//        Endianess handling, swapping 16bit and 32bit.
//
//-----------------------------------------------------------------------------


#include "doom_config.h"

#include "m_swap.h"


// Not needed with big endian.
#ifdef __BIG_ENDIAN__


// Swap 16bit, that is, MSB and LSB byte.
unsigned short SwapSHORT(unsigned short x)
{
    // No masking with 0xFF should be necessary. 
    return (x >> 8) | (x << 8);
}


// Swapping 32bit.
unsigned long SwapLONG(unsigned long x)
{
    return
        (x >> 24)
        | ((x >> 8) & 0xff00)
        | ((x << 8) & 0xff0000)
        | (x << 24);
}


#endif