valter/dosbox-staging
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New timing scheme lot's of new functions.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@504
This commit is contained in:
Sjoerd van der Berg 2002-11-17 08:33:33 +00:00
parent f5b3b79c95
commit 30284bfaa4
1 changed files with 23 additions and 1 deletions
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24
include/pic.h
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@ -19,7 +19,12 @@
#ifndef __PIC_H
#define __PIC_H
#include "cpu.h"
typedef void (PIC_EOIHandler) (void);
typedef void (* PIC_EventHandler)(void);
#define PIC_MAXIRQ 15
#define PIC_NOIRQ 0xFF
@ -27,7 +32,20 @@ typedef void (PIC_EOIHandler) (void);
extern Bitu PIC_IRQCheck;
extern Bitu PIC_IRQActive;
extern bool PIC_IRQAgain;
extern Bitu PIC_Ticks;
INLINE Bitu PIC_Index(void) {
return ((CPU_CycleMax-CPU_CycleLeft-CPU_Cycles)*1000)/CPU_CycleMax;
}
INLINE Bits PIC_MakeCycles(Bitu amount) {
return (CPU_CycleMax*amount)/1000;
}
INLINE Bit64u PIC_MicroCount(void) {
return PIC_Ticks*1000+PIC_Index();
}
void PIC_ActivateIRQ(Bit32u irq);
@ -37,8 +55,12 @@ void PIC_runIRQs(void);
void PIC_RegisterIRQ(Bit32u irq,PIC_EOIHandler handler,char * name);
void PIC_FreeIRQ(Bit32u irq);
Bitu PIC_RunQueue(void);
void PIC_AddIRQ(Bitu irq,Bitu delay);
void PIC_AddEvent(PIC_EventHandler handler,Bitu delay);
void PIC_RemoveEvents(PIC_EventHandler handler);
#endif