// license:BSD-3-Clause // copyright-holders:R. Belmont,Carl /********************************************************************** cdp1879.h - RCA CDP1879 real-time clock emulation **********************************************************************/ #ifndef MAME_MACHINE_CDP1879_H #define MAME_MACHINE_CDP1879_H #pragma once #include "dirtc.h" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_CDP1879_IRQ_CALLBACK(_cb) \ devcb = &downcast(*device).set_irq_cb(DEVCB_##_cb); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> cdp1879_device class cdp1879_device : public device_t, public device_rtc_interface { public: // construction/destruction cdp1879_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); DECLARE_READ8_MEMBER(read); DECLARE_WRITE8_MEMBER(write); template devcb_base &set_irq_cb(Object &&cb) { return m_irq_w.set_callback(std::forward(cb)); } devcb_write_line m_irq_w; protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) 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; } void set_irq(int bit); void update_rtc(); private: // registers enum { R_CNT_SECONDS = 2, // 2 = seconds R_CNT_MINUTES, // 3 = minutes R_CNT_HOURS, // 4 = hours R_CNT_DAYOFMONTH, // 5 = day of the month R_CNT_MONTH, // 6 = month R_CTL_IRQSTATUS = 7, // 7 = IRQ status R_CTL_CONTROL = 7, // 7 = IRQ control R_ALM_SECONDS, R_ALM_MINUTES, R_ALM_HOURS }; u8 m_regs[11]; bool m_comparator_state; // timers emu_timer *m_clock_timer; }; // device type definition DECLARE_DEVICE_TYPE(CDP1879, cdp1879_device) #endif // MAME_MACHINE_CDP1879_H