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diff --git a/src/devices/bus/spectrum/plus2test.h b/src/devices/bus/spectrum/plus2test.h
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+// license:BSD-3-Clause
+// copyright-holders:Nigel Barnes
+/**********************************************************************
+
+ Spectrum +2 Test Software
+
+**********************************************************************/
+
+#ifndef MAME_BUS_SPECTRUM_PLUS2TEST_H
+#define MAME_BUS_SPECTRUM_PLUS2TEST_H
+
+#pragma once
+
+
+#include "exp.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> spectrum_plus2test_device
+
+class spectrum_plus2test_device :
+ public device_t,
+ public device_spectrum_expansion_interface
+{
+public:
+ // construction/destruction
+ spectrum_plus2test_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ // optional information overrides
+ virtual const tiny_rom_entry *device_rom_region() const override;
+
+ virtual DECLARE_READ_LINE_MEMBER(romcs) override;
+ virtual DECLARE_READ8_MEMBER(mreq_r) override;
+
+private:
+ required_memory_region m_rom;
+};
+
+
+// device type definition
+DECLARE_DEVICE_TYPE(SPECTRUM_PLUS2TEST, spectrum_plus2test_device)
+
+
+#endif // MAME_BUS_SPECTRUM_PLUS2TEST_H