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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
StarPoint Software StarDOS cartridge emulation
**********************************************************************/
#ifndef MAME_BUS_C4_STARDOS_H
#define MAME_BUS_C4_STARDOS_H
#pragma once
#include "exp.h"
#include "machine/6821pia.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c64_stardos_cartridge_device
class c64_stardos_cartridge_device : public device_t,
public device_c64_expansion_card_interface
{
public:
// construction/destruction
c64_stardos_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// optional information overrides
virtual ioport_constructor device_input_ports() const override;
protected:
// device-level overrides
virtual void device_start() override;
// device_c64_expansion_card_interface overrides
virtual uint8_t c64_cd_r(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
virtual void c64_cd_w(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;
virtual int c64_exrom_r(offs_t offset, int sphi2, int ba, int rw) override;
private:
inline void charge_io1_capacitor();
inline void charge_io2_capacitor();
int m_io1_charge;
int m_io2_charge;
};
// device type definition
DECLARE_DEVICE_TYPE(C64_STARDOS, c64_stardos_cartridge_device)
#endif // MAME_BUS_C4_STARDOS_H
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