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// license:BSD-3-Clause
// copyright-holders:Devin Acker
#ifndef MAME_CASIO_ZOOMER_RTC_H
#define MAME_CASIO_ZOOMER_RTC_H
#pragma once
#include "dirtc.h"
class zoomer_rtc_device : public device_t,
public device_rtc_interface,
public device_nvram_interface
{
public:
zoomer_rtc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto alarm_cb() { return m_alarm_cb.bind(); }
auto tick_cb() { return m_tick_cb.bind(); }
u8 read(offs_t offset);
void write(offs_t offset, u8 data);
protected:
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void device_clock_changed() override;
virtual bool rtc_feature_leap_year() const override { return true; }
virtual bool rtc_feature_y2k() const override { return true; }
virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second) override;
virtual void nvram_default() override;
virtual bool nvram_read(util::read_stream &file) override;
virtual bool nvram_write(util::write_stream &file) override;
private:
static constexpr int TICKS_PER_SEC = 8;
static constexpr s64 RTC_EPOCH = -2203959600LL; // 2/28/1900
enum
{
REG_SECOND = 0x1,
REG_MINUTE,
REG_HOUR,
REG_DATE_LOW,
REG_DATE_MID,
REG_DATE_HIGH,
REG_ALARM_SECOND = 0x9,
REG_ALARM_MINUTE,
REG_ALARM_HOUR,
REG_ALARM_DATE_LOW,
REG_ALARM_DATE_MID,
REG_ALARM_DATE_HIGH
};
void update_date();
TIMER_CALLBACK_MEMBER(tick_timer);
TIMER_CALLBACK_MEMBER(sec_timer);
emu_timer *m_tick_timer, *m_sec_timer;
devcb_write_line m_tick_cb, m_alarm_cb;
u8 m_data[16];
u8 m_day, m_month;
u16 m_year;
};
DECLARE_DEVICE_TYPE(ZOOMER_RTC, zoomer_rtc_device)
#endif // MAME_CASIO_ZOOMER_RTC_H
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