#lang hdl-demo

/* Xor (exclusive or) gate:
If a<>b out=1 else out=0. */

CHIP Xor {
          IN a, b;
             OUT out;
             PARTS:
             Not(in=a, out=nota);
             Not(in=b, out=notb);
             And(a=a, b=notb, out=w1);
             And(a=nota, b=b, out=w2);
             Or(a=w1, b=w2, out=out);
}