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#ifndef Z80IRQ_H
#define Z80IRQ_H
#include "compiler.h"
#include "z80.h"
typedef int (*irq_func)(struct z80_irq *irq);
struct z80_irq {
irq_func intack;
irq_func eoi;
void *pvt; /* Available for user */
int vector; /* Available for user if intack defined */
unsigned int prio; /* Priority level */
};
#define MAX_IRQ 32
extern volatile unsigned int irq_pending;
static inline bool poll_irq(void)
{
return unlikely(irq_pending != 0);
}
void z80_register_irq(struct z80_irq *irq);
int z80_intack(void);
void z80_eoi(void);
bool z80_interrupt(struct z80_irq *irq);
bool z80_clear_interrupt(struct z80_irq *irq);
#endif /* Z80IRQ_H */
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