141 lines
3.5 KiB
C++
141 lines
3.5 KiB
C++
/*
|
|
* Copyright (C) 2020-2023 The DOSBox Staging Team
|
|
* Copyright (C) 2002-2021 The DOSBox Team
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
|
|
#ifndef DOSBOX_CALLBACK_H
|
|
#define DOSBOX_CALLBACK_H
|
|
|
|
#ifndef DOSBOX_MEM_H
|
|
#include "mem.h"
|
|
#endif
|
|
|
|
typedef Bitu (*CallBack_Handler)(void);
|
|
extern CallBack_Handler CallBack_Handlers[];
|
|
|
|
enum {
|
|
CB_RETN,
|
|
CB_RETF,
|
|
CB_RETF8,
|
|
CB_RETF_STI,
|
|
CB_RETF_CLI,
|
|
CB_IRET,
|
|
CB_IRETD,
|
|
CB_IRET_STI,
|
|
CB_IRET_EOI_PIC1,
|
|
CB_IRQ0,
|
|
CB_IRQ1,
|
|
CB_IRQ9,
|
|
CB_IRQ12,
|
|
CB_IRQ12_RET,
|
|
CB_IRQ6_PCJR,
|
|
CB_MOUSE,
|
|
CB_INT29,
|
|
CB_INT16,
|
|
CB_HOOKABLE,
|
|
CB_TDE_IRET,
|
|
CB_IPXESR,
|
|
CB_IPXESR_RET,
|
|
CB_INT21,
|
|
CB_INT13,
|
|
CB_VESA_WAIT,
|
|
CB_VESA_PM
|
|
};
|
|
|
|
using callback_number_t = uint8_t;
|
|
#define CB_MAX 128
|
|
#define CB_SIZE 32
|
|
#define CB_SEG 0xF000
|
|
#define CB_SOFFSET 0x1000
|
|
|
|
enum {
|
|
CBRET_NONE=0,CBRET_STOP=1
|
|
};
|
|
|
|
extern uint8_t lastint;
|
|
|
|
static inline RealPt CALLBACK_RealPointer(callback_number_t cb_number)
|
|
{
|
|
const auto offset = CB_SOFFSET + cb_number * CB_SIZE;
|
|
return RealMake(CB_SEG, static_cast<uint16_t>(offset));
|
|
}
|
|
static inline PhysPt CALLBACK_PhysPointer(callback_number_t cb_number)
|
|
{
|
|
const auto offset = CB_SOFFSET + cb_number * CB_SIZE;
|
|
return PhysicalMake(CB_SEG, static_cast<uint16_t>(offset));
|
|
}
|
|
|
|
static inline PhysPt CALLBACK_GetBase(void) {
|
|
return (CB_SEG << 4) + CB_SOFFSET;
|
|
}
|
|
|
|
callback_number_t CALLBACK_Allocate();
|
|
void CALLBACK_DeAllocate(const callback_number_t in);
|
|
|
|
void CALLBACK_Idle(void);
|
|
|
|
|
|
void CALLBACK_RunRealInt(uint8_t intnum);
|
|
void CALLBACK_RunRealFar(uint16_t seg,uint16_t off);
|
|
|
|
bool CALLBACK_Setup(callback_number_t cb_number, CallBack_Handler handler, Bitu type, const char* descr);
|
|
callback_number_t CALLBACK_Setup(callback_number_t cb_number, CallBack_Handler handler, Bitu type, PhysPt addr,
|
|
const char* descr);
|
|
|
|
const char* CALLBACK_GetDescription(callback_number_t cb_number);
|
|
|
|
void CALLBACK_SCF(bool val);
|
|
void CALLBACK_SZF(bool val);
|
|
void CALLBACK_SIF(bool val);
|
|
|
|
extern callback_number_t call_priv_io;
|
|
|
|
class CALLBACK_HandlerObject {
|
|
private:
|
|
bool installed = false;
|
|
enum { NONE, SETUP, SETUPAT } m_type = NONE;
|
|
struct {
|
|
RealPt old_vector = 0;
|
|
bool installed = false;
|
|
uint8_t interrupt = 0;
|
|
} vectorhandler = {};
|
|
|
|
callback_number_t m_cb_number = 0;
|
|
|
|
public:
|
|
CALLBACK_HandlerObject() : installed(false), m_type(NONE), vectorhandler{0, 0, false}, m_cb_number(0) {}
|
|
|
|
virtual ~CALLBACK_HandlerObject();
|
|
|
|
//Install and allocate a callback.
|
|
void Install(CallBack_Handler handler,Bitu type,const char* description);
|
|
void Install(CallBack_Handler handler,Bitu type,PhysPt addr,const char* description);
|
|
|
|
void Uninstall();
|
|
|
|
//Only allocate a callback number
|
|
void Allocate(CallBack_Handler handler,const char* description=nullptr);
|
|
uint16_t Get_callback() {
|
|
return m_cb_number;
|
|
}
|
|
RealPt Get_RealPointer() {
|
|
return CALLBACK_RealPointer(m_cb_number);
|
|
}
|
|
void Set_RealVec(uint8_t vec);
|
|
};
|
|
#endif
|