class IOPort
{
public:
    IOPort(u16 a) { address = a; };
    ~IOPort() {};

    operator=(u8 u) { u2s.WriteByte(address,u); return 0; };
    operator|=(u8 u) { u2s.WriteBit(address,0xFF,u); return 0; };
    operator&=(u8 u) { u2s.WriteBit(address,u,0); return 0; };

    u16 address;
};



IOPort PINB(0x23);
#define PINB7 7
#define PINB6 6
#define PINB5 5
#define PINB4 4
#define PINB3 3
#define PINB2 2
#define PINB1 1
#define PINB0 0

IOPort DDRB(0x24);
#define DDB7 7
#define DDB6 6
#define DDB5 5
#define DDB4 4
#define DDB3 3
#define DDB2 2
#define DDB1 1
#define DDB0 0

IOPort PORTB(0x25);
#define PORTB7 7
#define PORTB6 6
#define PORTB5 5
#define PORTB4 4
#define PORTB3 3
#define PORTB2 2
#define PORTB1 1
#define PORTB0 0