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