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diff --git a/src/devices/bus/dmv/k220.h b/src/devices/bus/dmv/k220.h
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+++ b/src/devices/bus/dmv/k220.h
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+// license:BSD-3-Clause
+// copyright-holders:Sandro Ronco
+#pragma once
+
+#ifndef __DMV_K220_H__
+#define __DMV_K220_H__
+
+#include "emu.h"
+#include "dmvbus.h"
+#include "machine/i8255.h"
+#include "machine/pit8253.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> dmv_k220_device
+
+class dmv_k220_device :
+ public device_t,
+ public device_dmvslot_interface
+{
+public:
+ // construction/destruction
+ dmv_k220_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual ioport_constructor device_input_ports() const;
+
+ DECLARE_WRITE8_MEMBER(porta_w);
+ DECLARE_WRITE8_MEMBER(portc_w);
+ DECLARE_WRITE_LINE_MEMBER(write_out0);
+ DECLARE_WRITE_LINE_MEMBER(write_out1);
+ DECLARE_WRITE_LINE_MEMBER(write_out2);
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // dmvcart_interface overrides
+ virtual bool read(offs_t offset, UINT8 &data);
+ virtual bool write(offs_t offset, UINT8 data);
+
+private:
+ required_device<pit8253_device> m_pit;
+ required_device<i8255_device> m_ppi;
+ required_memory_region m_ram;
+ required_memory_region m_rom;
+
+ UINT8 m_portc;
+};
+
+
+// device type definition
+extern const device_type DMV_K220;
+
+#endif /* __DMV_K220_H__ */