summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/machine/dp8573a.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/machine/dp8573a.h')
-rw-r--r--src/devices/machine/dp8573a.h73
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