kolibrios/programs/develop/open watcom/trunk/clib/h/extfunc.h

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/****************************************************************************
*
* 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.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Special interface for calls to non-Watcom routines from
* inside clib (x86 specific).
*
****************************************************************************/
#ifndef EXTFUNC_H_INCLUDED
#define EXTFUNC_H_INCLUDED
#include "variety.h"
#if defined(_M_IX86)
#if !defined(__WINDOWS__)
#if defined(__BIG_DATA__)
#define __DS ds
#endif
#endif
#if !defined(__FLAT__)
#define __ES es
#endif
#if defined(__386__)
#if defined(__WINDOWS__) || !defined(__FLAT__)
#define __FS fs
#endif
#define __GS gs
#if defined(__SW_3S)
#define __AX eax
#define __BX ebx
#define __CX ecx
#define __DX edx
#endif
#endif
#ifndef __AX
#define __AX
#endif
#ifndef __BX
#define __BX
#endif
#ifndef __CX
#define __CX
#endif
#ifndef __DX
#define __DX
#endif
#ifndef __DS
#define __DS
#endif
#ifndef __ES
#define __ES
#endif
#ifndef __FS
#define __FS
#endif
#ifndef __GS
#define __GS
#endif
#pragma aux __outside_CLIB modify [__AX __BX __CX __DX __DS __ES __FS __GS];
/*
use as follows:
typedef void vfv( void );
#pragma aux (__outside_CLIB) __vfv;
*/
#undef __AX
#undef __BX
#undef __CX
#undef __DX
#undef __DS
#undef __ES
#undef __FS
#undef __GS
#endif
#endif