#ifndef MSXS1990_HH

#define MSXS1990_HH

#include "FirmwareSwitch.hh"

#include "MSXDevice.hh"

#include "SimpleDebuggable.hh"

namespace openmsx {

/**

 * This class implements the MSX-engine found in a MSX Turbo-R (S1990)

 *

 * TODO explanation

 */

class MSXS1990 final : public MSXDevice

{

public:

	explicit MSXS1990(const DeviceConfig& config);

	void reset(EmuTime time) override;

	[[nodiscard]] byte readIO(uint16_t port, EmuTime time) override;

	[[nodiscard]] byte peekIO(uint16_t port, EmuTime time) const override;

	void writeIO(uint16_t port, byte value, EmuTime time) override;

	template<typename Archive>

	void serialize(Archive& ar, unsigned version);

private:

	[[nodiscard]] byte readRegister(byte reg) const;

	void writeRegister(byte reg, byte value);

	void setCPUStatus(byte value);

private:

	struct Debuggable final : SimpleDebuggable {

		Debuggable(MSXMotherBoard& motherBoard, const std::string& name);

		[[nodiscard]] byte read(unsigned address) override;

		void write(unsigned address, byte value) override;

	} debuggable;

	FirmwareSwitch firmwareSwitch;

	byte registerSelect;

	byte cpuStatus;

};

} // namespace openmsx

#endif