/*

 * This class implements a simple timer, used in a TurboR.

 * This is a 16-bit (up) counter running at 255681Hz (3.58MHz / 14).

 * The least significant byte can be read from port 0xE6.

 *     most                                         0xE7.

 * Writing a random value to port 0xE6 resets the counter.

 * Writing to port 0xE7 has no effect.

 */

#ifndef MSXE6TIMER_HH

#define MSXE6TIMER_HH

#include "Clock.hh"

#include "MSXDevice.hh"

namespace openmsx {

class MSXE6Timer final : public MSXDevice

{

public:

	explicit MSXE6Timer(const DeviceConfig& config);

	void reset(EmuTime time) override;

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

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

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

	template<typename Archive>

	void serialize(Archive& ar, unsigned version);

private:

	Clock<3579545, 14> reference; // (3.58 / 14)MHz

};

} // namespace openmsx

#endif