// 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/Mux.hdl

/** 
 * Multiplexor:
 * out = a if sel == 0
 *       b otherwise
 */

CHIP Mux {
    IN a, b, sel;
    OUT out;

    PARTS:
    // Put your code here:
	Nand(a=sel, b=b, out=out1);
	Nand(a=out1, b=out1, out=out2);
	
	Nand(a=sel, b=sel, out=out3);
	Nand(a=a, b=out3, out=out4);
	Nand(a=out4, b=out4, out=out5);
	
	//Nand(a=out2, b=out5, out=out);
	//Nand(a=out6, b=out6, out=out);
	//OR
	Nand(a=out2, b=out2, out=out6);
	Nand(a=out5, b=out5, out=out7);
	Nand(a=out6, b=out7, out=out);
}