// 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/1/Mux.hdl
/** 
 * Multiplexor:
 * if (sel = 0) out = a, else out = b
 */
CHIP Mux {
    IN a, b, sel;
    OUT out;

    PARTS:

    Not(in=sel,out=notSel);
    And(a= a, b= notSel, out= andA);
    And(a= b, b= sel, out= andB);
    Xor(a= andA , b= andB, out=out );
}