text: // license:BSD-3-Clause
  // copyright-holders:Curt Coder
  /**********************************************************************
  
      CBM 8000 High Speed Graphics (324402-01) card emulation
  
  **********************************************************************/
  
  #ifndef MAME_BUS_PET_HSG_H
  #define MAME_BUS_PET_HSG_H
  
  #pragma once
  
  #include "exp.h"
  #include "video/ef9365.h"
  
  
  
  //**************************************************************************
  //  TYPE DEFINITIONS
  //**************************************************************************
  
  // ======================> cbm8000_hsg_device
  
  class cbm8000_hsg_device : public device_t, public device_pet_expansion_card_interface
  {
  protected:
  	// construction/destruction
  	cbm8000_hsg_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
  
  	// device-level overrides
  	virtual void device_start() override;
  	virtual void device_reset() override;
  
  	// optional information overrides
  	virtual const tiny_rom_entry *device_rom_region() const override;
  
  	// device_pet_expansion_card_interface overrides
  	virtual int pet_norom_r(address_space &space, offs_t offset, int sel) override;
  	virtual uint8_t pet_bd_r(address_space &space, offs_t offset, uint8_t data, int &sel) override;
  	virtual void pet_bd_w(address_space &space, offs_t offset, uint8_t data, int &sel) override;
  
  private:
  	required_device<ef9365_device> m_gdc;
  	required_memory_region m_9000;
  	required_memory_region m_a000;
  };
  
  
  // ======================> cbm8000_hsg_a_device
  
  class cbm8000_hsg_a_device :  public cbm8000_hsg_device
  {
  public:
  	// construction/destruction
  	cbm8000_hsg_a_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
  
  protected:
  	// optional information overrides
  	virtual void device_add_mconfig(machine_config &config) override;
  
  private:
  	void hsg_a_map(address_map &map);
  };
  
  
  // ======================> cbm8000_hsg_b_device
  
  class cbm8000_hsg_b_device :  public cbm8000_hsg_device
  {
  public:
  	// construction/destruction
  	cbm8000_hsg_b_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
  
  protected:
  	// optional information overrides
  	virtual void device_add_mconfig(machine_config &config) override;
  
  private:
  	void hsg_b_map(address_map &map);
  };
  
  
  // device type definition
  DECLARE_DEVICE_TYPE(CBM8000_HSG_A, cbm8000_hsg_a_device)
  DECLARE_DEVICE_TYPE(CBM8000_HSG_B, cbm8000_hsg_b_device)
  
  #endif // MAME_BUS_PET_HSG_H
  