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-rw-r--r--src/devices/bus/hp_dio/hp98644.h57
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diff --git a/src/devices/bus/hp_dio/hp98644.h b/src/devices/bus/hp_dio/hp98644.h
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+++ b/src/devices/bus/hp_dio/hp98644.h
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+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+
+#ifndef MAME_BUS_HPDIO_98644_H
+#define MAME_BUS_HPDIO_98644_H
+
+#pragma once
+
+#include "hp_dio.h"
+#include "machine/ins8250.h"
+
+#define RS232_TAG "rs232"
+#define INS8250_TAG "ins8250"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> dio16_98644_device
+
+class dio16_98644_device :
+ public device_t,
+ public device_dio16_card_interface
+{
+public:
+ // construction/destruction
+ dio16_98644_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ DECLARE_READ16_MEMBER(io_r);
+ DECLARE_WRITE16_MEMBER(io_w);
+
+ required_device<ins8250_device> m_uart;
+
+protected:
+ dio16_98644_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
+
+
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ virtual ioport_constructor device_input_ports() const override;
+ // optional information overrides
+ virtual void device_add_mconfig(machine_config &config) override;
+
+private:
+ required_ioport m_switches;
+ uint8_t m_control;
+
+ bool m_loopback;
+ uint8_t m_data;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(HPDIO_98644, dio16_98644_device)
+
+#endif // MAME_BUS_HPDIO_98644_H