79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
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/*
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* Copyright (C) 2002-2010 The DOSBox Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* $Id: inout.h,v 1.13 2009-05-27 09:15:41 qbix79 Exp $ */
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#ifndef DOSBOX_INOUT_H
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#define DOSBOX_INOUT_H
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#define IO_MAX (64*1024+3)
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#define IO_MB 0x1
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#define IO_MW 0x2
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#define IO_MD 0x4
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#define IO_MA (IO_MB | IO_MW | IO_MD )
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typedef Bitu IO_ReadHandler(Bitu port,Bitu iolen);
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typedef void IO_WriteHandler(Bitu port,Bitu val,Bitu iolen);
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extern IO_WriteHandler * io_writehandlers[3][IO_MAX];
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extern IO_ReadHandler * io_readhandlers[3][IO_MAX];
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void IO_RegisterReadHandler(Bitu port,IO_ReadHandler * handler,Bitu mask,Bitu range=1);
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void IO_RegisterWriteHandler(Bitu port,IO_WriteHandler * handler,Bitu mask,Bitu range=1);
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void IO_FreeReadHandler(Bitu port,Bitu mask,Bitu range=1);
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void IO_FreeWriteHandler(Bitu port,Bitu mask,Bitu range=1);
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void IO_WriteB(Bitu port,Bitu val);
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void IO_WriteW(Bitu port,Bitu val);
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void IO_WriteD(Bitu port,Bitu val);
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Bitu IO_ReadB(Bitu port);
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Bitu IO_ReadW(Bitu port);
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Bitu IO_ReadD(Bitu port);
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/* Classes to manage the IO objects created by the various devices.
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* The io objects will remove itself on destruction.*/
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class IO_Base{
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protected:
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bool installed;
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Bitu m_port, m_mask,m_range;
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public:
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IO_Base():installed(false){};
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};
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class IO_ReadHandleObject: private IO_Base{
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public:
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void Install(Bitu port,IO_ReadHandler * handler,Bitu mask,Bitu range=1);
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~IO_ReadHandleObject();
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};
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class IO_WriteHandleObject: private IO_Base{
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public:
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void Install(Bitu port,IO_WriteHandler * handler,Bitu mask,Bitu range=1);
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~IO_WriteHandleObject();
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};
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static INLINE void IO_Write(Bitu port,Bit8u val) {
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IO_WriteB(port,val);
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}
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static INLINE Bit8u IO_Read(Bitu port){
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return (Bit8u)IO_ReadB(port);
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}
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#endif
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