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z80
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z80.h
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C/C++ Source or Header
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1999-12-24
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2KB
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50 lines
#ifndef Z80_H
#define Z80_H
#include "cpuintrf.h"
#include "osd_cpu.h"
enum {
Z80_PC=1, Z80_SP, Z80_AF, Z80_BC, Z80_DE, Z80_HL,
Z80_IX, Z80_IY, Z80_AF2, Z80_BC2, Z80_DE2, Z80_HL2,
Z80_R, Z80_I, Z80_IM, Z80_IFF1, Z80_IFF2, Z80_HALT,
Z80_NMI_STATE, Z80_IRQ_STATE, Z80_DC0, Z80_DC1, Z80_DC2, Z80_DC3,
Z80_NMI_NESTING
};
extern int z80_ICount; /* T-state count */
#define Z80_IGNORE_INT -1 /* Ignore interrupt */
#define Z80_NMI_INT -2 /* Execute NMI */
#define Z80_IRQ_INT -1000 /* Execute IRQ */
/* Port number written to when entering/leaving HALT state */
#define Z80_HALT_PORT 0x10000
extern void z80_reset (void *param);
extern void z80_exit (void);
extern int z80_execute(int cycles);
extern void z80_burn(int cycles);
extern unsigned z80_get_context (void *dst);
extern void z80_set_context (void *src);
extern unsigned z80_get_pc (void);
extern void z80_set_pc (unsigned val);
extern unsigned z80_get_sp (void);
extern void z80_set_sp (unsigned val);
extern unsigned z80_get_reg (int regnum);
extern void z80_set_reg (int regnum, unsigned val);
extern void z80_set_nmi_line(int state);
extern void z80_set_irq_line(int irqline, int state);
extern void z80_set_irq_callback(int (*irq_callback)(int));
extern void z80_state_save(void *file);
extern void z80_state_load(void *file);
extern const char *z80_info(void *context, int regnum);
extern unsigned z80_dasm(char *buffer, unsigned pc);
#ifdef MAME_DEBUG
extern unsigned DasmZ80(char *buffer, unsigned pc);
#endif
#endif