// 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 = !(a == b).
 */

CHIP Xor {
    IN a, b;
    OUT out;

    PARTS:
	Not(in=a,out=na);
	Not(in=b,out=nb);
	And(a=na,b=b,out=c);
	And(a=a,b=nb,out=d);
	Or(a=c,b=d,out=out);

}