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diff --git a/src/emu/bus/c64/geocable.h b/src/emu/bus/c64/geocable.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ geoCable Centronics Cable emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __C64_GEOCABLE__
+#define __C64_GEOCABLE__
+
+
+#include "emu.h"
+#include "user.h"
+#include "machine/ctronics.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> c64_geocable_device
+
+class c64_geocable_device : public device_t,
+ public device_c64_user_port_interface
+{
+public:
+ // construction/destruction
+ c64_geocable_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual machine_config_constructor device_mconfig_additions() const;
+
+ // not really public
+ DECLARE_WRITE_LINE_MEMBER( busy_w );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+
+ // device_c64_user_port_interface overrides
+ virtual void c64_pb_w(address_space &space, offs_t offset, UINT8 data);
+ virtual void c64_pa2_w(int level);
+
+private:
+ required_device<centronics_device> m_centronics;
+};
+
+
+// device type definition
+extern const device_type C64_GEOCABLE;
+
+
+#endif