// This file is part of www.nand2tetris.org
// and the book "The Elements of Computing Systems"
// by Nisan and Schocken, MIT Press.
// File name: projects/01/Xor.hdl

/**
 * Exclusive-or gate:
 * out = not (a == b)
 */
// Cost = 6 NAND Gates
// TODO: Improve this

CHIP Xor {
    IN a, b;
    OUT out;

    PARTS:
    Nand(a=a, b=b, out=w);
    Or(a=a, b=b, out=x);
    And(a=x, b=w, out=out);
}