system.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 66 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
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*  ========================================================================
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
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****************************************************************************/


#include "hostsys.h"
#if _HOST_MEMORY & _HIGH_FIRST
extern int              TargetInt(int);
extern signed_32        TargetBigInt(signed_32);
extern void             TargAddW();

#define _IntToByte( value )  ( ( value ) & 0xff )
#define _IntToWord( value )  ( value & 0xffff )
#define _TargetInt( value )  TargetInt( value )
#define _TargetOffset( value )  TargetOffset( value )
#define _TargetLongInt( value )  TargetBigInt( value )
#define _HostOffset( value )  TargetOffset( value )
#define _HostInt( value )    TargetInt( value )
#define _TargetBigInt( value )  TargetBigInt( value )
#define _TargetAddL( targetw, value ) TargAddL( &targetw, value )
#define _TargetAddW( targetw, value ) TargAddW( &targetw, value )
#define _TargetAddB( targetw, value ) targetw += value

#elif _HOST_MEMORY & _LOW_FIRST

#define _IntToByte( value )  ( value & 0xff )
#define _IntToWord( value )  ( value )
#define _TargetInt( value )  ( value )
#define _TargetOffset( value )  ( value )
#define _TargetLongInt( value )  ( value )
#define _HostOffset( value )  ( value )
#define _HostInt( value )    ( value )
#define _TargetAddL( targetw, value ) targetw += value
#define _TargetAddW( targetw, value ) targetw += value
#define _TargetAddB( targetw, value ) targetw += value
#define _TargetBigInt( value ) ( value )

#endif