// 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/Mux4Way16.hdl

/**
 * 4-way 16-bit multiplexor.
 * out = a if sel==00
 *       b if sel==01
 *       c if sel==10
 *       d if sel==11
 */

CHIP Mux4Way16 {
    IN a[16], b[16], c[16], d[16], sel[2];
    OUT out[16];

    PARTS:
    	Mux16(a=a,b=b,sel=sel[0],out=q); 
   	Mux16(a=c,b=d,sel=sel[0],out=r);
	Mux16(a=q,b=r,sel=sel[1],out=out);
}