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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/**********************************************************************
mm58167.h - National Semiconductor MM58167 real-time clock emulation
**********************************************************************/
#ifndef MAME_MACHINE_MM58167_H
#define MAME_MACHINE_MM58167_H
#pragma once
#include "dirtc.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> mm58167_device
class mm58167_device : public device_t,
public device_rtc_interface
{
public:
// construction/destruction
mm58167_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
uint8_t read(offs_t offset);
void write(offs_t offset, uint8_t data);
auto irq() { return m_irq_w.bind(); }
devcb_write_line m_irq_w;
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_rtc_interface overrides
virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second) override;
virtual bool rtc_feature_leap_year() const override { return true; }
TIMER_CALLBACK_MEMBER(clock_tick);
void set_irq(int bit);
void update_rtc();
private:
int m_regs[32];
int m_milliseconds;
bool m_comparator_state;
// timers
emu_timer *m_clock_timer;
};
// device type definition
DECLARE_DEVICE_TYPE(MM58167, mm58167_device)
#endif // MAME_MACHINE_MM58167_H
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