60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
/*****************************************************************************
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*
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* $Id: endian.c,v 1.6 2006/01/22 19:52:33 mbse Exp $
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* Purpose ...............: Change integer value CPU endian independant
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*
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*****************************************************************************
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* Copyright (C) 1997-2006
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*
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* Michiel Broek FIDO: 2:280/2802
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* Beekmansbos 10
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* 1971 BV IJmuiden
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* the Netherlands
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*
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* This file is part of MBSE BBS.
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*
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* This BBS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* MBSE BBS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MBSE BBS; see the file COPYING. If not, write to the Free
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* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*****************************************************************************/
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#include "../config.h"
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#include "mbselib.h"
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/*
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* Return an integer in endian independent format. This is used to make menu
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* files portable on little and big-endian systems. Normal datafiles are
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* not portable, only the menus.
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*/
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int le_int(int val)
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{
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#ifdef WORDS_BIGENDIAN
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return ((val & 0xff) << 24) | (((val >> 8) & 0xff) << 16) | (((val >> 16) & 0xff) << 8) | ((val >> 24) & 0xff);
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#else
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return val;
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#endif
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}
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unsigned short le_us(unsigned short val)
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{
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#ifdef WORDS_BIGENDIAN
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return ((val & 0xff) << 8) | ((val >> 8) & 0xff);
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#else
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return val;
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#endif
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}
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