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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
/***************************************************************************
h8_intc.h
H8 interrupt controllers family
***************************************************************************/
#ifndef __H8_INTC_H__
#define __H8_INTC_H__
#include "h8.h"
#define MCFG_H8_INTC_ADD( _tag ) \
MCFG_DEVICE_ADD( _tag, H8_INTC, 0 )
#define MCFG_H8H_INTC_ADD( _tag ) \
MCFG_DEVICE_ADD( _tag, H8H_INTC, 0 )
#define MCFG_H8S_INTC_ADD( _tag ) \
MCFG_DEVICE_ADD( _tag, H8S_INTC, 0 )
class h8_intc_device : public device_t {
public:
h8_intc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
h8_intc_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
int interrupt_taken(int vector);
void internal_interrupt(int vector);
void set_input(int inputnum, int state);
void set_filter(int icr_filter, int ipr_filter);
DECLARE_READ8_MEMBER(ier_r);
DECLARE_WRITE8_MEMBER(ier_w);
DECLARE_READ8_MEMBER(iscr_r);
DECLARE_WRITE8_MEMBER(iscr_w);
protected:
enum { IRQ_LEVEL, IRQ_EDGE, IRQ_DUAL_EDGE };
enum { MAX_VECTORS = 256 };
int irq_vector_base;
int irq_vector_nmi;
required_device<h8_device> cpu;
UINT32 pending_irqs[MAX_VECTORS/32];
int irq_type[8];
bool nmi_input;
UINT8 irq_input;
UINT8 ier;
UINT8 isr;
UINT16 iscr;
int icr_filter, ipr_filter;
virtual void device_start() override;
virtual void device_reset() override;
virtual void get_priority(int vect, int &icr_pri, int &ipr_pri) const;
void update_irq_state();
void update_irq_types();
void check_level_irqs(bool force_update = false);
};
class h8h_intc_device : public h8_intc_device {
public:
h8h_intc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
h8h_intc_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
DECLARE_READ8_MEMBER(isr_r);
DECLARE_WRITE8_MEMBER(isr_w);
DECLARE_READ8_MEMBER(icr_r);
DECLARE_WRITE8_MEMBER(icr_w);
DECLARE_READ8_MEMBER(icrc_r);
DECLARE_WRITE8_MEMBER(icrc_w);
DECLARE_READ8_MEMBER(iscrh_r);
DECLARE_WRITE8_MEMBER(iscrh_w);
DECLARE_READ8_MEMBER(iscrl_r);
DECLARE_WRITE8_MEMBER(iscrl_w);
protected:
static const int vector_to_slot[];
UINT32 icr;
virtual void device_start() override;
virtual void device_reset() override;
virtual void get_priority(int vect, int &icr_pri, int &ipr_pri) const override;
void update_irq_types();
};
class h8s_intc_device : public h8h_intc_device {
public:
h8s_intc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
DECLARE_READ8_MEMBER(ipr_r);
DECLARE_WRITE8_MEMBER(ipr_w);
DECLARE_READ8_MEMBER(iprk_r);
DECLARE_WRITE8_MEMBER(iprk_w);
private:
static const int vector_to_slot[];
UINT8 ipr[11];
virtual void get_priority(int vect, int &icr_pri, int &ipr_pri) const override;
virtual void device_reset() override;
};
extern const device_type H8_INTC;
extern const device_type H8H_INTC;
extern const device_type H8S_INTC;
#endif
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