// 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/03/a/Bit.hdl

/**
 * 1-bit register:
 * If load[t] == 1 then out[t+1] = in[t]
 *                 else out does not change (out[t+1] = out[t])
 */

CHIP Bit {
    IN in, load;
    OUT out;

    PARTS:
    // Put your code here:
    Not(in=load,out=negLoad);
    And(a=in,b=load,out=out1);
    And(a=b,b=negLoad,out=out2);
    Xor(a=out1,b=out2,out=a);
    DFF(in=a,out=b,out=out);


}