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diff --git a/src/mame/machine/k7659kb.h b/src/mame/machine/k7659kb.h
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+// license:BSD-3-Clause
+// copyright-holders:Sergey Svishchev
+/**********************************************************************
+
+ K7659 keyboard emulation
+
+*********************************************************************/
+
+#pragma once
+
+#ifndef __K7659_KEYBOARD__
+#define __K7659_KEYBOARD__
+
+
+#include "emu.h"
+
+
+
+//**************************************************************************
+// MACROS / CONSTANTS
+//**************************************************************************
+
+#define K7659_KEYBOARD_TAG "k7659kb"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_K7659_KEYBOARD_ADD() \
+ MCFG_DEVICE_ADD(K7659_KEYBOARD_TAG, K7659_KEYBOARD, 0)
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> k7659_keyboard_device
+
+class k7659_keyboard_device : public device_t
+{
+public:
+ // construction/destruction
+ k7659_keyboard_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_READ8_MEMBER(read);
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+ virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
+ emu_timer *m_timer;
+
+private:
+ UINT8 key_pos(UINT8 val);
+ UINT8 m_lookup;
+ UINT8 m_key;
+ const UINT8 *m_p_rom;
+};
+
+
+// device type definition
+extern const device_type K7659_KEYBOARD;
+
+
+
+#endif