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diff --git a/src/devices/bus/adamnet/ddp.h b/src/devices/bus/adamnet/ddp.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Coleco Adam Digital Data Pack emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __ADAM_DDP__
+#define __ADAM_DDP__
+
+#include "emu.h"
+#include "adamnet.h"
+#include "cpu/m6800/m6800.h"
+#include "formats/adam_cas.h"
+#include "imagedev/cassette.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> adam_digital_data_pack_device
+
+class adam_digital_data_pack_device : public device_t,
+ public device_adamnet_card_interface
+{
+public:
+ // construction/destruction
+ adam_digital_data_pack_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;
+
+ // not really public
+ DECLARE_WRITE8_MEMBER( p1_w );
+ DECLARE_READ8_MEMBER( p2_r );
+ DECLARE_WRITE8_MEMBER( p2_w );
+ DECLARE_READ8_MEMBER( p4_r );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+
+ // device_adamnet_card_interface overrides
+ virtual void adamnet_reset_w(int state);
+
+ required_device<cpu_device> m_maincpu;
+ required_device<cassette_image_device> m_ddp0;
+ required_device<cassette_image_device> m_ddp1;
+
+ int m_wr0;
+ int m_wr1;
+ int m_track;
+};
+
+
+// device type definition
+extern const device_type ADAM_DDP;
+
+
+
+#endif