/1/DMux.hdl

 1// This file is part of the materials accompanying the book 
 2// "The Elements of Computing Systems" by Nisan and Schocken, 
 3// MIT Press. Book site: www.idc.ac.il/tecs
 4// File name: projects/01/DMux.hdl
 5
 6/** 
 7 * Demultiplexer. If sel = 0 then {a = in; b = 0} else {a = 0; b = in}
 8 */
 9 
10CHIP DMux {
11
12    IN  in, sel;
13    OUT a, b;
14
15    PARTS:
16    Not(in=sel, out=notsel);
17    And(a=in, b=notsel, out=a);
18    And(a=in, b=sel, out=b);
19}