RAM8

// 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/RAM8.hdl

/**
 * Memory of 8 registers, each 16 bit-wide. Out holds the value
 * stored at the memory location specified by address. If load==1, then 
 * the in value is loaded into the memory location specified by address 
 * (the loaded value will be emitted to out from the next time step onward).
 */

CHIP RAM8 {
    IN in[16], load, address[3];
    OUT out[16];

    PARTS:
    // Put your code here:
DMux8Way(in=load,sel=address[0..2],a=loadA,b=loadB,c=loadC,d=loadD,e=loadE,f=loadF,g=loadG,h=loadH);
    Register(in=in, load=loadA, out=outA);
    Register(in=in, load=loadB, out=outB);
    Register(in=in, load=loadC, out=outC);
    Register(in=in, load=loadD, out=outD);
    Register(in=in, load=loadE, out=outE);
    Register(in=in, load=loadF, out=outF);
    Register(in=in, load=loadG, out=outG);
    Register(in=in, load=loadH, out=outH);

    Mux8Way16(a=outA, b=outB, c=outC, d=outD, e=outE, f=outF, g=outG, h=outH, sel=address[0..2], out=out);

}