24 lines
478 B
Plaintext
24 lines
478 B
Plaintext
// 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)
|
|
*/
|
|
|
|
CHIP Xor {
|
|
IN a, b;
|
|
OUT out;
|
|
|
|
PARTS:
|
|
//Invert inputs
|
|
Not(in=a, out=nota);
|
|
Not(in=b, out=notb);
|
|
//Xor Logic
|
|
And(a=a, b=notb, out=and1);
|
|
And(a=nota, b=b, out=and2);
|
|
Or(a=and1, b=and2, out=out);
|
|
}
|