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-rw-r--r--src/devices/bus/c64/sw8k.h55
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diff --git a/src/devices/bus/c64/sw8k.h b/src/devices/bus/c64/sw8k.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ C64 switchable 8K cartridge emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __C64_SW8K__
+#define __C64_SW8K__
+
+
+#include "emu.h"
+#include "exp.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> c64_switchable_8k_cartridge_device
+
+class c64_switchable_8k_cartridge_device : public device_t,
+ public device_c64_expansion_card_interface
+{
+public:
+ // construction/destruction
+ c64_switchable_8k_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual ioport_constructor device_input_ports() const;
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // device_c64_expansion_card_interface overrides
+ virtual UINT8 c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2);
+
+private:
+ required_ioport m_sw;
+
+ int m_bank;
+};
+
+
+// device type definition
+extern const device_type C64_SW8K;
+
+
+#endif