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eceg431/01/DMux.hdl

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// 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/DMux.hdl
/**
* Demultiplexor:
* [a, b] = [in, 0] if sel = 0
* [0, in] if sel = 1
*/
CHIP DMux {
IN in, sel;
OUT a, b;
PARTS:
// invert sel
Not(in=sel, out=notSel);
// when sel=0: a gets in
And(a=in, b=notSel, out=a);
// when sel=1: b gets in
And(a=in, b=sel, out=b);
}