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-rw-r--r--src/devices/bus/comx35/ram.h53
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diff --git a/src/devices/bus/comx35/ram.h b/src/devices/bus/comx35/ram.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ COMX-35 RAM Card emulation
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __COMX_RAM__
+#define __COMX_RAM__
+
+#include "emu.h"
+#include "exp.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> comx_ram_device
+
+class comx_ram_device : public device_t,
+ public device_comx_expansion_card_interface
+{
+public:
+ // construction/destruction
+ comx_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // device_comx_expansion_card_interface overrides
+ virtual UINT8 comx_mrd_r(address_space &space, offs_t offset, int *extrom);
+ virtual void comx_mwr_w(address_space &space, offs_t offset, UINT8 data);
+ virtual void comx_io_w(address_space &space, offs_t offset, UINT8 data);
+
+private:
+ optional_shared_ptr<UINT8> m_ram;
+
+ int m_bank;
+};
+
+
+// device type definition
+extern const device_type COMX_RAM;
+
+
+#endif