mirror of
https://github.com/retro100/dosbox-wii.git
synced 2024-06-24 13:16:11 +02:00
112 lines
3.0 KiB
C++
112 lines
3.0 KiB
C++
/*
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* Copyright (C) 2002-2019 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef DOSBOX_CALLBACK_H
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#define DOSBOX_CALLBACK_H
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#ifndef DOSBOX_MEM_H
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#include "mem.h"
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#endif
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typedef Bitu (*CallBack_Handler)(void);
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extern CallBack_Handler CallBack_Handlers[];
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enum { CB_RETN,CB_RETF,CB_RETF8,CB_RETF_STI,CB_RETF_CLI,
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CB_IRET,CB_IRETD,CB_IRET_STI,CB_IRET_EOI_PIC1,
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CB_IRQ0,CB_IRQ1,CB_IRQ9,CB_IRQ12,CB_IRQ12_RET,CB_IRQ6_PCJR,CB_MOUSE,
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CB_INT29,CB_INT16,CB_HOOKABLE,CB_TDE_IRET,CB_IPXESR,CB_IPXESR_RET,
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CB_INT21,CB_INT13,CB_VESA_WAIT,CB_VESA_PM };
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#define CB_MAX 128
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#define CB_SIZE 32
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#define CB_SEG 0xF000
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#define CB_SOFFSET 0x1000
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enum {
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CBRET_NONE=0,CBRET_STOP=1
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};
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extern Bit8u lastint;
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static INLINE RealPt CALLBACK_RealPointer(Bitu callback) {
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return RealMake(CB_SEG,(Bit16u)(CB_SOFFSET+callback*CB_SIZE));
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}
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static INLINE PhysPt CALLBACK_PhysPointer(Bitu callback) {
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return PhysMake(CB_SEG,(Bit16u)(CB_SOFFSET+callback*CB_SIZE));
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}
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static INLINE PhysPt CALLBACK_GetBase(void) {
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return (CB_SEG << 4) + CB_SOFFSET;
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}
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Bitu CALLBACK_Allocate();
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void CALLBACK_Idle(void);
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void CALLBACK_RunRealInt(Bit8u intnum);
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void CALLBACK_RunRealFar(Bit16u seg,Bit16u off);
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bool CALLBACK_Setup(Bitu callback,CallBack_Handler handler,Bitu type,const char* descr);
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Bitu CALLBACK_Setup(Bitu callback,CallBack_Handler handler,Bitu type,PhysPt addr,const char* descr);
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const char* CALLBACK_GetDescription(Bitu callback);
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bool CALLBACK_Free(Bitu callback);
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void CALLBACK_SCF(bool val);
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void CALLBACK_SZF(bool val);
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void CALLBACK_SIF(bool val);
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extern Bitu call_priv_io;
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class CALLBACK_HandlerObject{
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private:
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bool installed;
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Bitu m_callback;
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enum {NONE,SETUP,SETUPAT} m_type;
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struct {
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RealPt old_vector;
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Bit8u interrupt;
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bool installed;
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} vectorhandler;
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public:
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CALLBACK_HandlerObject():installed(false),m_type(NONE) {
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vectorhandler.installed=false;
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}
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~CALLBACK_HandlerObject();
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//Install and allocate a callback.
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void Install(CallBack_Handler handler,Bitu type,const char* description);
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void Install(CallBack_Handler handler,Bitu type,PhysPt addr,const char* description);
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void Uninstall();
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//Only allocate a callback number
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void Allocate(CallBack_Handler handler,const char* description=0);
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Bit16u Get_callback() {
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return (Bit16u)m_callback;
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}
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RealPt Get_RealPointer() {
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return CALLBACK_RealPointer(m_callback);
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}
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void Set_RealVec(Bit8u vec);
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};
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#endif
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