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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
XL 80 cartridge emulation
**********************************************************************/
#ifndef MAME_BUS_C64_XL80_H
#define MAME_BUS_C64_XL80_H
#pragma once
#include "exp.h"
#include "video/mc6845.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c64_xl80_device
class c64_xl80_device : public device_t,
public device_c64_expansion_card_interface
{
public:
// construction/destruction
c64_xl80_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual machine_config_constructor device_mconfig_additions() const override;
// not really public
MC6845_UPDATE_ROW( crtc_update_row );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_c64_expansion_card_interface overrides
virtual uint8_t c64_cd_r(address_space &space, offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
virtual void c64_cd_w(address_space &space, offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
virtual int c64_game_r(offs_t offset, int sphi2, int ba, int rw) override { return 1; }
virtual int c64_exrom_r(offs_t offset, int sphi2, int ba, int rw) override { return 0; }
private:
required_device<h46505_device> m_crtc;
required_device<palette_device> m_palette;
required_memory_region m_char_rom;
optional_shared_ptr<uint8_t> m_ram;
};
// device type definition
DECLARE_DEVICE_TYPE(C64_XL80, c64_xl80_device)
#endif // MAME_BUS_C64_XL80_H
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