/* ASG 971222 -- rewrote this interface */
#ifndef __NECITRF_H_
#define __NECITRF_H_



enum
{
   NEC_IP=1, NEC_AW, NEC_CW, NEC_DW, NEC_BW, NEC_SP, NEC_BP, NEC_IX, NEC_IY,
   NEC_FLAGS, NEC_ES, NEC_CS, NEC_SS, NEC_DS,
   NEC_VECTOR, NEC_PENDING, NEC_NMI_STATE, NEC_IRQ_STATE
};

/* Public variables */
extern int nec_ICount;

/* Public functions */

/*
#define v20_ICount nec_ICount
extern void v20_init(void);
extern void v20_reset(void *param);
extern void v20_exit(void);
extern int v20_execute(int cycles);
extern unsigned v20_get_context(void *dst);
extern void v20_set_context(void *src);
extern unsigned v20_get_reg(int regnum);
extern void v20_set_reg(int regnum, unsigned val);
extern void v20_set_irq_line(int irqline, int state);
extern void v20_set_irq_callback(int (*callback)(int irqline));
extern const char *v20_info(void *context, int regnum);
extern unsigned v20_dasm(char *buffer, unsigned pc);

#define v30_ICount nec_ICount
extern void v30_init(void);
extern void v30_reset(void *param);
extern void v30_exit(void);
extern int v30_execute(int cycles);
extern unsigned v30_get_context(void *dst);
extern void v30_set_context(void *src);
extern unsigned v30_get_reg(int regnum);
extern void v30_set_reg(int regnum, unsigned val);
extern void v30_set_irq_line(int irqline, int state);
extern void v30_set_irq_callback(int (*callback)(int irqline));
extern const char *v30_info(void *context, int regnum);
extern unsigned v30_dasm(char *buffer, unsigned pc);

#define v33_ICount nec_ICount
extern void v33_init(void);
extern void v33_reset(void *param);
extern void v33_exit(void);
extern int v33_execute(int cycles);
extern unsigned v33_get_context(void *dst);
extern void v33_set_context(void *src);
extern unsigned v33_get_reg(int regnum);
extern void v33_set_reg(int regnum, unsigned val);
extern void v33_set_irq_line(int irqline, int state);
extern void v33_set_irq_callback(int (*callback)(int irqline));
extern const char *v33_info(void *context, int regnum);
extern unsigned v33_dasm(char *buffer, unsigned pc);
*/

void nec_set_irq_line(int irqline, int state);
void nec_set_reg(int regnum, uint32_t val);
int nec_execute(int cycles);
unsigned nec_get_reg(int regnum);
void nec_reset (void *param);
void nec_int(uint16_t vector);

uint8_t cpu_readport(uint8_t);
void cpu_writeport(uint32_t, uint8_t);
#define cpu_readop cpu_readmem20
#define cpu_readop_arg cpu_readmem20
void cpu_writemem20(uint32_t, uint8_t);
uint8_t cpu_readmem20(uint32_t);

#endif /* __NECITRF_H_ */