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-// 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:
- // Put your code here:
- DMux8Way (in=load, sel=address[0..2], a=load0, b=load1, c=load2, d=load3, e=load4, f=load5, g=load6, h=load7);
- RAM64 (in=in, load=load0, address=address[3..8], out=out0);
- RAM64 (in=in, load=load1, address=address[3..8], out=out1);
- RAM64 (in=in, load=load2, address=address[3..8], out=out2);
- RAM64 (in=in, load=load3, address=address[3..8], out=out3);
- RAM64 (in=in, load=load4, address=address[3..8], out=out4);
- RAM64 (in=in, load=load5, address=address[3..8], out=out5);
- RAM64 (in=in, load=load6, address=address[3..8], out=out6);
- RAM64 (in=in, load=load7, address=address[3..8], out=out7);
- Mux8Way16 (a=out0, b=out1, c=out2, d=out3, e=out4, f=out5, g=out6, h=out7, sel=address[0..2], out=out);
-}