CLK/Machines/Atari2600/PIA.hpp

//
//  PIA.h
//  Clock Signal
//
//  Created by Thomas Harte on 03/12/2016.
//  Copyright 2016 Thomas Harte. All rights reserved.
//

#ifndef Atari2600_PIA_h
#define Atari2600_PIA_h

#include <cstdint>

#include "../../Components/6532/6532.hpp"

namespace Atari2600 {

class PIA: public MOS::MOS6532<PIA> {
	public:
		inline uint8_t get_port_input(int port) {
			return port_values_[port];
		}

		inline void update_port_input(int port, uint8_t mask, bool set) {
			if(set) port_values_[port] &= ~mask; else port_values_[port] |= mask;
			set_port_did_change(port);
		}

		PIA() :
			port_values_{0xff, 0xff}
		{}

	private:
		uint8_t port_values_[2];

};

}

#endif /* PIA_h */