irq.h

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#ifndef ALCHEMY_IRQ_H
#define ALCHEMY_IRQ_H
 
/// @file
/// The hardware's interrupt sources and the interrupt handler table.
 
#include "edition.h"
#include "types.h"
 
/// The hardware's interrupt sources: each one's bit number in IE and IF, and
/// its slot in gIrqHandlers.
enum {
  IRQ_VBLANK,
  IRQ_HBLANK,
  IRQ_VCOUNT,
  IRQ_TIMER0,
  IRQ_TIMER1,
  IRQ_TIMER2,
  IRQ_TIMER3,
  IRQ_SERIAL,
  IRQ_DMA0,
  IRQ_DMA1,
  IRQ_DMA2,
  IRQ_DMA3,
  IRQ_KEYPAD,
  IRQ_GAMEPAK,
  IRQ_COUNT
};
 
#define INTR_FLAG_VBLANK (1 << IRQ_VBLANK)
#define INTR_FLAG_TIMER3 (1 << IRQ_TIMER3)
#define INTR_FLAG_SERIAL (1 << IRQ_SERIAL)
#define INTR_FLAG_KEYPAD (1 << IRQ_KEYPAD)
#define INTR_FLAG_GAMEPAK (1 << IRQ_GAMEPAK)
 
typedef void (*InterruptHandler)(void);
 
/// The handler the IWRAM dispatcher calls for each interrupt source.
extern InterruptHandler gIrqHandlers[IRQ_COUNT];
 
/// The handlers installed at power-on, copied into gIrqHandlers.
extern const u32 gRuntime_IrqHandlers[IRQ_COUNT];
 
extern u8 IwramIrqMain[];
extern const u32 IwramIrqModeWord;
extern const u8 IwramRuntime_Rom[];
extern void *gIrqVector;
 
#endif