SMW RNG Simulation

public class SMWRNG {

    static byte[] rng;

    public static void main(String[] args) {
        rng = new byte[4];

        for (int i = 0; i <= 27776; i++) {
            simulateRNG();
            print(i);
        }
    }

    public static byte simulateRNG() {
        byte y = 1;
        tickRNG(y);
        y--;
        tickRNG(y);
        return rng[2];
    }

    public static void tickRNG(byte y) {
        rng[0] = (byte) (5 * rng[0] + 1);

        boolean c = (rng[1] & 0x80) != 0;
        boolean z = (rng[1] & 0x10) != 0;

        rng[1] = (byte) (2 * rng[1]);

        if (c == z) {
            rng[1]++;
        }

        rng[2+y] = (byte) (rng[0] ^ rng[1]);
    }

    public static void print(int i) {
        System.out.printf("%5d) S: %s, T: %s, J: %s, K: %s%n", i, b2s(rng[0]), b2s(rng[1]), b2s(rng[2]), b2s(rng[3]));
    }

    public static String b2s(byte b) {
        return String.format("%2x", b).toUpperCase().replace(' ', '0');
    }
}