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-rw-r--r--src/devices/bus/mc68000/ram.h39
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diff --git a/src/devices/bus/mc68000/ram.h b/src/devices/bus/mc68000/ram.h
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+// license: BSD-3-Clause
+// copyright-holders: Dirk Best
+/***************************************************************************
+
+ mc-68000-Computer RAM Expansion Card
+
+***************************************************************************/
+
+#ifndef MAME_BUS_MC68000_RAM_H
+#define MAME_BUS_MC68000_RAM_H
+
+#pragma once
+
+#include "sysbus.h"
+
+
+class mc68000_ram_device : public device_t, public device_mc68000_sysbus_card_interface
+{
+public:
+ // construction/destruction
+ mc68000_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ virtual uint16_t slot_r(offs_t offset, uint16_t mem_mask = ~0) override;
+ virtual void slot_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0) override;
+
+protected:
+ // device_t implementation
+ virtual void device_start() override ATTR_COLD;
+ virtual void device_reset() override ATTR_COLD;
+
+private:
+ std::unique_ptr<uint16_t[]> m_ram;
+};
+
+// device type definition
+DECLARE_DEVICE_TYPE(MC68000_RAM, mc68000_ram_device)
+
+
+#endif // MAME_BUS_MC68000_RAM_H