head 1.1; branch 1.1.1; access ; symbols start:1.1.1.1 PAlibDoc:1.1.1; locks ; strict; comment @# @; 1.1 date 2005.11.02.08.30.22; author jandujar; state Exp; branches 1.1.1.1; next ; 1.1.1.1 date 2005.11.02.08.30.22; author jandujar; state Exp; branches ; next ; desc @@ 1.1 log @Initial revision @ text @ PA_lib: PA_Interrupt.h File Reference

PA_Interrupt.h File Reference

Interrupt system. More...

Go to the source code of this file.

Defines

#define REG_IME   *(u32*)0x04000208
#define REG_IE   *(u32*)0x04000210
#define REG_IF   *(u32*)0x04000214
#define REG_INTERRUPT   IRQ_HANDLER
#define REG_DISPSTAT   DISP_SR
#define REG_VCOUNT   _REG16(0x04000006)
#define INTVBLANK   0x0001
#define INTHBLANK   0x0002
#define INTVCOUNT   0x0004
#define INTTIMER0   0x0008
#define INTTIMER1   0x0010
#define INTTIMER2   0x0020
#define INTTIMER3   0x0040
#define INTCOM   0x0080
#define INTDMA0   0x0100
#define INTDMA1   0x0200
#define INTDMA2   0x0400
#define INTDMA3   0x0800
#define INTBUTTON   0x1000
#define INTCART   0x2000
#define INT_VBLANK   0
#define INT_HBLANK   1
#define INT_VCOUNT   2
#define INT_TIMER0   3
#define INT_TIMER1   4
#define INT_TIMER2   5
#define INT_TIMER3   6
#define INT_COM   7
#define INT_DMA0   8
#define INT_DMA1   9
#define INT_DMA2   10
#define INT_DMA3   11
#define INT_KEY   12
#define INT_CART   13
#define ENABLE_VBLANK   8
#define ENABLE_HBLANK   16
#define ENABLE_VCOUNT   32
#define TIMER0COUNT   *(volatile u16 *)(0x04000100)
#define TIMER0CNT   *(volatile u16 *)(0x04000102)
#define TIMER0CNT_TIMER_START   (TIMER0CNT |= 0x0080)
#define TIMER0CNT_IRQ_ENABLE   (TIMER0CNT |= 0x0040)
#define PA_EnableTimer0()   {TIMER0CNT_TIMER_START; TIMER0CNT_IRQ_ENABLE;}
#define TIMER0CNT_TIMER_STOP   (TIMER0CNT &= 0xFF7F)
#define TIMER0CNT_IRQ_DISABLE   (TIMER0CNT &= 0xFFBF)
#define PA_DisableTimer0()   {TIMER0CNT_TIMER_STOP; TIMER0CNT_IRQ_DISABLE;}
#define TIMER1COUNT   *(volatile u16 *)(0x04000104)
#define TIMER1CNT   *(volatile u16 *)(0x04000106)
#define TIMER1CNT_TIMER_START   (TIMER1CNT |= 0x0080)
#define TIMER1CNT_IRQ_ENABLE   (TIMER1CNT |= 0x0040)
#define PA_EnableTimer1()   {TIMER1CNT_TIMER_START; TIMER1CNT_IRQ_ENABLE;}
#define TIMER1CNT_TIMER_STOP   (TIMER1CNT &= 0xFF7F)
#define TIMER1CNT_IRQ_DISABLE   (TIMER1CNT &= 0xFFBF)
#define PA_DisableTimer1()   {TIMER1CNT_TIMER_STOP; TIMER1CNT_IRQ_DISABLE;}
#define TIMER2COUNT   *(volatile u16 *)(0x04000108)
#define TIMER2CNT   *(volatile u16 *)(0x0400010A)
#define TIMER2CNT_TIMER_START   (TIMER2CNT |= 0x0080)
#define TIMER2CNT_IRQ_ENABLE   (TIMER2CNT |= 0x0040)
#define PA_EnableTimer2()   {TIMER2CNT_TIMER_START; TIMER2CNT_IRQ_ENABLE;}
#define TIMER2CNT_TIMER_STOP   (TIMER2CNT &= 0xFF7F)
#define TIMER2CNT_IRQ_DISABLE   (TIMER2CNT &= 0xFFBF)
#define PA_DisableTimer2()   {TIMER2CNT_TIMER_STOP; TIMER2CNT_IRQ_DISABLE;}
#define TIMER3COUNT   *(volatile u16 *)(0x0400010C)
#define TIMER3CNT   *(volatile u16 *)(0x0400010E)
#define TIMER3CNT_TIMER_START   (TIMER3CNT |= 0x0080)
#define TIMER3CNT_IRQ_ENABLE   (TIMER3CNT |= 0x0040)
#define PA_EnableTimer3()   {TIMER3CNT_TIMER_START; TIMER3CNT_IRQ_ENABLE;}
#define TIMER3CNT_TIMER_STOP   (TIMER3CNT &= 0xFF7F)
#define TIMER3CNT_IRQ_DISABLE   (TIMER3CNT &= 0xFFBF)
#define PA_DisableTimer3()   {TIMER3CNT_TIMER_STOP; TIMER3CNT_IRQ_DISABLE;}
#define PA_InitVBL()   PA_StartInt(INT_VBLANK, PA_vblFunc)
 Intiate a basic VBL function. Very usefull for unexperienced users, it updates the OAM (sprites), the Keypad, and the Stylus input every frame. No need to use PA_UpdateOAM, PA_UpdatePad, PA_UpdateStylus, and PA_UpdateRTC !
#define PA_GetVcount()   (REG_VCOUNT&511)
 Get the vertical line count...

Typedefs

typedef void(* funcpointer )(void)

Functions

void interruptfunction (void)
void PA_ResetInterrupts (void)
 Reset the interrupt system. Disables all interrupts.
void PA_StartInt (u8 inter, funcpointer interfunc)
 Initiate a given interrupt.
void PA_StopInt (u8 inter)
 Initiate a given interrupt.
void PA_vblFunc (void)
 The standard PAlib VBL function... This will update the pad, the stylus, the RTC, etc... You could/should use this function if you do your own custom VBL...

Variables

volatile bool PA_Newframe
volatile bool PA_vblok
u32 PA_CPU
u32 PA_MaxCPU
u32 PA_lines
u8 PA_VBLCount
u8 PA_nVBLs
funcpointer interruptfunc [14]


Detailed Description

Interrupt system.

Current working interrupts are VBlank, HBlank, VCount, and Timers


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