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49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
#ifndef Z80_H
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#define Z80_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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//#include "osd_cpu.h"
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//#include "cpuintrf.h"
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//#include "DrZ80.h"
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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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#define Z80_IGNORE_INT -1 /* Ignore interrupt */
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#define Z80_NMI_INT -2 /* Execute NMI */
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#define Z80_IRQ_INT -1000 /* Execute IRQ */
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extern unsigned Z80_GetPC (void); /* Get program counter */
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extern int Z80_GetPreviousPC (void);
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extern void Z80_Init(void);
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extern void Z80_Reset(void);
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extern int Z80_Execute(int cycles); /* Execute cycles T-States - returns number of cycles actually run */
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extern int Z80_Interrupt(void);
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extern void Z80_Cause_Interrupt(int type);
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extern void Z80_Clear_Pending_Interrupts(void);
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extern void Interrupt(void); /* required for DrZ80 int hack */
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#ifdef __cplusplus
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} /* End of extern "C" */
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#endif
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#endif
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