nand2tetris/projects/01/Xor.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/01/Xor.hdl
/**
* Exclusive-or gate:
* out = not (a == b)
*/
// Cost = 6 NAND Gates
// TODO: Improve this
CHIP Xor {
IN a, b;
OUT out;
PARTS:
Nand(a=a, b=b, out=w);
Or(a=a, b=b, out=x);
And(a=x, b=w, out=out);
}