@@ -1,12 +1,10 @@ 
 
 # Progress
 
-## TODO
-RAM64
-RAM8
-
 ## DONE
 Bit
 PC
+RAM64
+RAM8
 Register
 

@@ -1,10 +1,8 @@ 
 
 # Progress
 
-## TODO
+## DONE
 RAM16K
 RAM4K
 RAM512
 
-## DONE
-

@@ -15,5 +15,12 @@ IN in[16], load, address[14];
     OUT out[16];
 
     PARTS:
-    // Put your code here:
-}+    DMux4Way(in=load, sel=address[12..13], a=load0, b=load1, c=load2, d=load3);
+
+    RAM4K(in=in, load=load0, address=address[0..11], out=ram0);
+    RAM4K(in=in, load=load1, address=address[0..11], out=ram1);
+    RAM4K(in=in, load=load2, address=address[0..11], out=ram2);
+    RAM4K(in=in, load=load3, address=address[0..11], out=ram3);
+
+    Mux4Way16(a=ram0, b=ram1, c=ram2, d=ram3, sel=address[12..13], out=out);
+}

@@ -15,5 +15,18 @@ IN in[16], load, address[12];
     OUT out[16];
 
     PARTS:
-    // Put your code here:
-}+    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=ram0);
+    RAM512(in=in, load=load1, address=address[0..8], out=ram1);
+    RAM512(in=in, load=load2, address=address[0..8], out=ram2);
+    RAM512(in=in, load=load3, address=address[0..8], out=ram3);
+    RAM512(in=in, load=load4, address=address[0..8], out=ram4);
+    RAM512(in=in, load=load5, address=address[0..8], out=ram5);
+    RAM512(in=in, load=load6, address=address[0..8], out=ram6);
+    RAM512(in=in, load=load7, address=address[0..8], out=ram7);
+
+    Mux8Way16(a=ram0, b=ram1, c=ram2, d=ram3, e=ram4, f=ram5, g=ram6, h=ram7,
+              sel=address[9..11], out=out);
+}

@@ -15,5 +15,18 @@ IN in[16], load, address[9];
     OUT out[16];
 
     PARTS:
-    // Put your code here:
-}+    DMux8Way(in=load, sel=address[6..8], a=load0, b=load1, c=load2, d=load3,
+                                         e=load4, f=load5, g=load6, h=load7);
+
+    RAM64(in=in, load=load0, address=address[0..5], out=ram0);
+    RAM64(in=in, load=load1, address=address[0..5], out=ram1);
+    RAM64(in=in, load=load2, address=address[0..5], out=ram2);
+    RAM64(in=in, load=load3, address=address[0..5], out=ram3);
+    RAM64(in=in, load=load4, address=address[0..5], out=ram4);
+    RAM64(in=in, load=load5, address=address[0..5], out=ram5);
+    RAM64(in=in, load=load6, address=address[0..5], out=ram6);
+    RAM64(in=in, load=load7, address=address[0..5], out=ram7);
+
+    Mux8Way16(a=ram0, b=ram1, c=ram2, d=ram3, e=ram4, f=ram5, g=ram6, h=ram7,
+              sel=address[6..8], out=out);
+}