RAM512
// This file is part of the materials accompanying the book
// "The Elements of Computing Systems" by Nisan and Schocken,
// MIT Press. Book site: www.idc.ac.il/tecs
// File name: projects/03/b/RAM512.hdl
/**
* Memory of 512 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 RAM512 {
IN in[16], load, address[9];
OUT out[16];
PARTS:
DMux8Way(in=load, sel=address[0..2], a=loadA, b=loadB, c=loadC, d=loadD, e=loadE, f=loadF, g=loadG, h=loadH);
RAM64(in=in, load=loadA, address=address[3..8], out=outA);
RAM64(in=in, load=loadB, address=address[3..8], out=outB);
RAM64(in=in, load=loadC, address=address[3..8], out=outC);
RAM64(in=in, load=loadD, address=address[3..8], out=outD);
RAM64(in=in, load=loadE, address=address[3..8], out=outE);
RAM64(in=in, load=loadF, address=address[3..8], out=outF);
RAM64(in=in, load=loadG, address=address[3..8], out=outG);
RAM64(in=in, load=loadH, address=address[3..8], 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);
// Put your code here:
}