Genesis-Plus-GX/source/cpu/cpuintrf.h
ekeeke31 217ca8de3f
2007-08-10 20:34:06 +00:00

31 lines
848 B
C

#ifndef CPUINTRF_H
#define CPUINTRF_H
#include "osd_cpu.h"
#define CPU_16BIT_PORT 0x4000
#define CPU_FLAGS_MASK 0xff00
#define CLEAR_LINE 0
#define ASSERT_LINE 1
#define REG_PREVIOUSPC -1
#define REG_SP_CONTENTS -2
/* daisy-chain link */
typedef struct {
void (*reset)(int); /* reset callback */
int (*interrupt_entry)(int); /* entry callback */
void (*interrupt_reti)(int); /* reti callback */
int irq_param; /* callback paramater */
} Z80_DaisyChain;
#define Z80_MAXDAISY 4 /* maximum of daisy chan device */
#define Z80_INT_REQ 0x01 /* interrupt request mask */
#define Z80_INT_IEO 0x02 /* interrupt disable mask(IEO) */
#define Z80_VECTOR(device,state) (((device)<<8)|(state))
#endif /* CPUINTRF_H */