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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************

    Coleco Adam Internal 64KB RAM Expansion emulation

**********************************************************************/

#ifndef MAME_BUS_ADAM_RAM_H
#define MAME_BUS_ADAM_RAM_H

#pragma once

#include "exp.h"



//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

// ======================> adam_ram_expansion_device

class adam_ram_expansion_device :  public device_t,
									public device_adam_expansion_slot_card_interface
{
public:
	// construction/destruction
	adam_ram_expansion_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

protected:
	// device-level overrides
	virtual void device_start() override;

	// device_adam_expansion_slot_card_interface overrides
	virtual uint8_t adam_bd_r(offs_t offset, uint8_t data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2) override;
	virtual void adam_bd_w(offs_t offset, uint8_t data, int bmreq, int biorq, int aux_rom_cs, int cas1, int cas2) override;

private:
	optional_shared_ptr<uint8_t> m_ram;
};


// device type definition
DECLARE_DEVICE_TYPE(ADAM_RAM, adam_ram_expansion_device)

#endif // MAME_BUS_ADAM_RAM_H