text: // license:BSD-3-Clause
  // copyright-holders:Curt Coder
  /**********************************************************************
  
      ABC 80 16 KB RAM expansion card emulation
  
  *********************************************************************/
  
  #ifndef MAME_BUS_ABCBUS_RAM_H
  #define MAME_BUS_ABCBUS_RAM_H
  
  #pragma once
  
  #include "abcbus.h"
  
  
  
  //**************************************************************************
  //  TYPE DEFINITIONS
  //**************************************************************************
  
  // ======================> abc80_16kb_ram_card_device
  
  class abc80_16kb_ram_card_device : public device_t, public device_abcbus_card_interface
  {
  public:
  	// construction/destruction
  	abc80_16kb_ram_card_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
  
  protected:
  	// device-level overrides
  	virtual void device_start() override;
  
  	// device_abcbus_interface overrides
  	virtual void abcbus_cs(uint8_t data) override { };
  	virtual uint8_t abcbus_xmemfl(offs_t offset) override;
  	virtual void abcbus_xmemw(offs_t offset, uint8_t data) override;
  
  private:
  	optional_shared_ptr<uint8_t> m_ram;
  };
  
  
  // device type definition
  DECLARE_DEVICE_TYPE(ABC80_16KB_RAM_CARD, abc80_16kb_ram_card_device)
  
  #endif // MAME_BUS_ABCBUS_RAM_H
  