Hi all,
My RAM512, DMux8Way, and Mux8Way16 are all working fine. However, when I try to load RAM4K, it does not work. Here is the HDL:
// 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/b/RAM4K.hdl
/**
* Memory of 4K registers, each 16 bit-wide. Out hold 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 after the next time step.)
*/
CHIP RAM4K {
IN in[16], load, address[12];
OUT out[16];
PARTS:
DMux8Way(in=load,sel=address[9..11],a=load0,b=load1,c=load2,d=load3,e=load4,f=load5,g=load6,h=load7);
RAM512(in=in,load=load0,address=address[0..8],out=out0);
RAM512(in=in,load=load1,address=address[0..8],out=out1);
RAM512(in=in,load=load2,address=address[0..8],out=out2);
RAM512(in=in,load=load3,address=address[0..8],out=out3);
RAM512(in=in,load=load4,address=address[0..8],out=out4);
RAM512(in=in,load=load5,address=address[0..8],out=out5);
RAM512(in=in,load=load6,address=address[0..8],out=out6);
RAM512(in=in,load=load7,address=address[0..8],out=out7);
Mux8Way16(a=out0,b=out1,c=out2,d=out3,e=out4,f=out5,g=out6,h=out7,sel=address[9..11],out=out);
}
Locked
Project.zip (70K)