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42 lines
1.2 KiB
C
42 lines
1.2 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 "DrZ80.h"
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/****************************************************************************/
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/* The Z80 registers. HALT is set to 1 when the CPU is halted, the refresh */
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/* register is calculated as follows: refresh=(Regs.R&127)|(Regs.R2&128) */
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/****************************************************************************/
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typedef struct Z80_Regs {
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struct DrZ80 regs;
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} Z80_Regs_s;
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extern struct Z80_Regs Z80;
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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_GetRegs (struct Z80_Regs *Regs); /* Get registers */
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extern void Z80_SetRegs (struct Z80_Regs *Regs); /* Set registers */
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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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