mirror of
https://github.com/retro100/dosbox-wii.git
synced 2024-09-29 18:28:35 +02:00
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/*
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* Copyright (C) 2002-2004 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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#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=0);
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void IO_FreeWriteHandler(Bitu port,Bitu mask,Bitu range=0);
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INLINE void IO_WriteB(Bitu port,Bitu val) {
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io_writehandlers[0][port](port,val,1);
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};
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INLINE void IO_WriteW(Bitu port,Bitu val) {
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io_writehandlers[1][port](port,val,2);
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};
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INLINE void IO_WriteD(Bitu port,Bitu val) {
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io_writehandlers[2][port](port,val,4);
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};
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INLINE Bitu IO_ReadB(Bitu port) {
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return io_readhandlers[0][port](port,1);
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}
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INLINE Bitu IO_ReadW(Bitu port) {
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return io_readhandlers[1][port](port,2);
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}
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INLINE Bitu IO_ReadD(Bitu port) {
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return io_readhandlers[2][port](port,4);
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}
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INLINE void IO_Write(Bitu port,Bit8u val) {
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IO_WriteB(port,val);
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}
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INLINE Bit8u IO_Read(Bitu port){
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return IO_ReadB(port);
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}
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