CLK/Components/RP5C01/RP5C01.hpp

//
//  RP5C01.hpp
//  Clock Signal
//
//  Created by Thomas Harte on 14/01/2023.
//  Copyright © 2023 Thomas Harte. All rights reserved.
//

#pragma once

#include "../../ClockReceiver/ClockReceiver.hpp"

#include <array>
#include <cstdint>

namespace Ricoh::RP5C01 {

class RP5C01 {
public:
	RP5C01(HalfCycles clock_rate);

	/// @returns the result of a read from @c address.
	uint8_t read(int address);

	/// Performs a write of @c value to @c address.
	void write(int address, uint8_t value);

	/// Advances time.
	void run_for(HalfCycles);

private:
	std::array<uint8_t, 26> ram_;

	HalfCycles sub_seconds_;
	const HalfCycles clock_rate_;

	// Contains the seconds, minutes and hours fields.
	int seconds_ = 0;

	// Calendar entries.
	int day_of_the_week_ = 0;
	int day_ = 0;
	int month_ = 0;
	int year_ = 0;
	int leap_year_ = 0;

	// Other flags.
	bool timer_enabled_ = false;
	bool alarm_enabled_ = false;
	int mode_ = 0;
	bool one_hz_on_ = false;
	bool sixteen_hz_on_ = false;
	bool twentyfour_hour_clock_ = true;
};

}