68 lines
1.9 KiB
C
Executable File
68 lines
1.9 KiB
C
Executable File
/*
|
|
* Copyright (C) 2002-2010 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef DOSBOX_PIC_H
|
|
#define DOSBOX_PIC_H
|
|
|
|
|
|
/* CPU Cycle Timing */
|
|
extern Bit32s CPU_Cycles;
|
|
extern Bit32s CPU_CycleLeft;
|
|
extern Bit32s CPU_CycleMax;
|
|
|
|
typedef void (PIC_EOIHandler) (void);
|
|
typedef void (* PIC_EventHandler)(Bitu val);
|
|
|
|
|
|
#define PIC_MAXIRQ 15
|
|
#define PIC_NOIRQ 0xFF
|
|
|
|
extern Bitu PIC_IRQCheck;
|
|
extern Bitu PIC_IRQActive;
|
|
extern Bitu PIC_Ticks;
|
|
|
|
static INLINE float PIC_TickIndex(void) {
|
|
return (CPU_CycleMax-CPU_CycleLeft-CPU_Cycles)/(float)CPU_CycleMax;
|
|
}
|
|
|
|
static INLINE Bits PIC_TickIndexND(void) {
|
|
return CPU_CycleMax-CPU_CycleLeft-CPU_Cycles;
|
|
}
|
|
|
|
static INLINE Bits PIC_MakeCycles(double amount) {
|
|
return (Bits)(CPU_CycleMax*amount);
|
|
}
|
|
|
|
static INLINE double PIC_FullIndex(void) {
|
|
return PIC_Ticks+(double)PIC_TickIndex();
|
|
}
|
|
|
|
void PIC_ActivateIRQ(Bitu irq);
|
|
void PIC_DeActivateIRQ(Bitu irq);
|
|
|
|
void PIC_runIRQs(void);
|
|
bool PIC_RunQueue(void);
|
|
|
|
//Delay in milliseconds
|
|
void PIC_AddEvent(PIC_EventHandler handler,float delay,Bitu val=0);
|
|
void PIC_RemoveEvents(PIC_EventHandler handler);
|
|
void PIC_RemoveSpecificEvents(PIC_EventHandler handler, Bitu val);
|
|
|
|
void PIC_SetIRQMask(Bitu irq, bool masked);
|
|
#endif
|