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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/***************************************************************************
dirtc.h
Device Real Time Clock interfaces.
***************************************************************************/
#ifndef MAME_EMU_DIRTC_H
#define MAME_EMU_DIRTC_H
#pragma once
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
// clock registers
enum
{
RTC_SECOND = 0,
RTC_MINUTE,
RTC_HOUR,
RTC_DAY,
RTC_MONTH,
RTC_DAY_OF_WEEK,
RTC_YEAR
};
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> device_rtc_interface
// class representing interface-specific live rtc
class device_rtc_interface : public device_interface
{
public:
// construction/destruction
device_rtc_interface(const machine_config &mconfig, device_t &device);
virtual ~device_rtc_interface();
// use UTC instead of local time when syncing at startup
void set_use_utc(bool use_utc) { m_use_utc = use_utc; }
void set_time(bool update, int year, int month, int day, int day_of_week, int hour, int minute, int second);
void set_current_time(const system_time &systime);
bool has_battery() const { return rtc_battery_backed(); }
protected:
static u8 convert_to_bcd(int val);
static int bcd_to_integer(u8 val);
void set_clock_register(int reg, int value);
int get_clock_register(int reg);
void clock_updated();
void advance_seconds();
void advance_minutes();
void advance_days();
void adjust_seconds();
// derived class overrides
virtual bool rtc_feature_y2k() const { return false; }
virtual bool rtc_feature_leap_year() const { return false; }
virtual bool rtc_battery_backed() const { return true; }
virtual void rtc_clock_updated(int year, int month, int day, int day_of_week, int hour, int minute, int second) = 0;
int m_register[7];
bool m_use_utc;
};
// iterator
typedef device_interface_enumerator<device_rtc_interface> rtc_interface_enumerator;
#endif // MAME_EMU_DIRTC_H
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