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-// 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/05/Memory.hdl
-
-/**
- * The complete address space of the Hack computer's memory,
- * including RAM and memory-mapped I/O. 
- * The chip facilitates read and write operations, as follows:
- *     Read:  out(t) = Memory[address(t)](t)
- *     Write: if load(t-1) then Memory[address(t-1)](t) = in(t-1)
- * In words: the chip always outputs the value stored at the memory 
- * location specified by address. If load==1, the in value is loaded 
- * into the memory location specified by address. This value becomes 
- * available through the out output from the next time step onward.
- * Address space rules:
- * Only the upper 16K+8K+1 words of the Memory chip are used. 
- * Access to address>0x6000 is invalid. Access to any address in 
- * the range 0x4000-0x5FFF results in accessing the screen memory 
- * map. Access to address 0x6000 results in accessing the keyboard 
- * memory map. The behavior in these addresses is described in the 
- * Screen and Keyboard chip specifications given in the book.
- */
-
-CHIP Memory {
-    IN in[16], load, address[15];
-    OUT out[16];
-
-    PARTS:
-    // Put your code here:
-    DMux(in=load, sel=address[14], a=mload, b=load1);
-    DMux(in=load1, sel=address[13], a=sload, b=kload);
-    RAM16K(in=in, load=mload, address=address[0..13], out=mout);
-    Screen(in=in, load=sload, address=address[0..12], out=sout);
-
-    Or8Way(in=address[0..7], out=or1);
-    Or8Way(in=address[5..12], out=or2);
-    Or(a=or1, b=or2, out=ksel);
-
-    Keyboard(out=kout);
-
-    Mux16(a=kout, b=false, sel=ksel, out=fout1);
-    Mux16(a=sout, b=fout1, sel=address[13], out=fout2);
-    Mux16(a=mout, b=fout2, sel=address[14], out=out);
-}