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diff --git a/src/devices/bus/adam/adamlink.h b/src/devices/bus/adam/adamlink.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Coleco AdamLink 300 Baud Modem emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __ADAMLINK__
+#define __ADAMLINK__
+
+#include "emu.h"
+#include "exp.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> adamlink_device
+
+class adamlink_device : public device_t,
+ public device_adam_expansion_slot_card_interface
+{
+public:
+ // construction/destruction
+ adamlink_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+
+ // device_adam_expansion_slot_card_interface overrides
+ virtual UINT8 adam_bd_r(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2);
+ virtual void adam_bd_w(address_space &space, offs_t offset, UINT8 data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2);
+};
+
+
+// device type definition
+extern const device_type ADAMLINK;
+
+
+
+#endif