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// license:BSD-3-Clause
// copyright-holders:Raphael Nabet
#ifndef MAME_MACHINE_MM58274C_H
#define MAME_MACHINE_MM58274C_H
/***************************************************************************
MACROS
***************************************************************************/
class mm58274c_device : public device_t
{
public:
mm58274c_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
void set_mode24(int mode) { m_mode24 = mode; }
void set_day1(int day) { m_day1 = day; }
void set_mode_and_day(int mode, int day) { m_mode24 = mode; m_day1 = day; }
uint8_t read(offs_t offset);
void write(offs_t offset, uint8_t data);
TIMER_CALLBACK_MEMBER(rtc_increment_cb);
TIMER_CALLBACK_MEMBER(rtc_interrupt_cb);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
private:
// internal state
// Initialization of the clock chip:
// m_day1 must be set to a value from 0 (sunday), 1 (monday)...
// to 6 (saturday) and is needed to correctly retrieve the
// day-of-week from the host system clock.
int m_mode24; /* 24/12 mode */
int m_day1; /* first day of week */
attotime interrupt_period_table(int val);
int m_status; /* status register (*read* from address 0 = control register) */
int m_control; /* control register (*write* to address 0) */
int m_clk_set; /* clock setting register */
int m_int_ctl; /* interrupt control register */
int m_wday; /* day of the week (1-7 (1=day1 as set in init)) */
int m_years1; /* years (BCD: 0-99) */
int m_years2;
int m_months1; /* months (BCD: 1-12) */
int m_months2;
int m_days1; /* days (BCD: 1-31) */
int m_days2;
int m_hours1; /* hours (BCD : 0-23) */
int m_hours2;
int m_minutes1; /* minutes (BCD : 0-59) */
int m_minutes2;
int m_seconds1; /* seconds (BCD : 0-59) */
int m_seconds2;
int m_tenths; /* tenths of second (BCD : 0-9) */
emu_timer *m_increment_rtc;
emu_timer *m_interrupt_timer;
};
DECLARE_DEVICE_TYPE(MM58274C, mm58274c_device)
#endif // MAME_MACHINE_MM58274C_H
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