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Diffstat (limited to 'src/devices/machine/dp8573a.h')
-rw-r--r-- | src/devices/machine/dp8573a.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/devices/machine/dp8573a.h b/src/devices/machine/dp8573a.h new file mode 100644 index 00000000000..8bf564bab66 --- /dev/null +++ b/src/devices/machine/dp8573a.h @@ -0,0 +1,73 @@ +// license:BSD-3-Clause +// copyright-holders:Ryan Holtz + +#ifndef MAME_MACHINE_DP8573A_H +#define MAME_MACHINE_DP8573A_H + +#pragma once + +#include "dirtc.h" + +class dp8573a_device : public device_t, public device_nvram_interface, public device_rtc_interface +{ +public: + dp8573a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 32'768); + + virtual void write(offs_t offset, uint8_t data); + virtual uint8_t read(offs_t offset); + void pfail_w(int state) {} + + auto intr() { return m_intr_cb.bind(); } + auto mfo() { return m_mfo_cb.bind(); } + +protected: + dp8573a_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); + + // device_t implementation + virtual void device_start() override ATTR_COLD; + + // device_nvram_interface implementation + virtual void nvram_default() override; + virtual bool nvram_read(util::read_stream &file) override; + virtual bool nvram_write(util::write_stream &file) override; + + // device_rtc_interface implementation + virtual bool rtc_feature_y2k() const override { return false; } + virtual bool rtc_feature_leap_year() 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; + + void save_registers(); + void set_interrupt(uint8_t mask); + void clear_interrupt(uint8_t mask); + + TIMER_CALLBACK_MEMBER(msec_tick); + + virtual unsigned const ram_size() { return 32; } + + std::unique_ptr<uint8_t[]> m_ram; + uint8_t m_tscr; + uint8_t m_pfr; + uint8_t m_millis; + + emu_timer *m_timer; + + devcb_write_line m_intr_cb; + devcb_write_line m_mfo_cb; +}; + +class dp8572a_device : public dp8573a_device +{ +public: + dp8572a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + virtual void write(offs_t offset, uint8_t data) override; + virtual uint8_t read(offs_t offset) override; + +protected: + virtual unsigned const ram_size() override { return 64; } +}; + +DECLARE_DEVICE_TYPE(DP8572A, dp8572a_device) +DECLARE_DEVICE_TYPE(DP8573A, dp8573a_device) + +#endif // MAME_MACHINE_DP8573A_H |