From f4dcbfd853456c837d5367273c5bb0cd4298c1fd Mon Sep 17 00:00:00 2001
From: Nemo <me@captnemo.in>
Date: Wed, 20 May 2020 14:46:14 +0530
Subject: [PATCH] Adds Dmux8Way. Not as fun as the last one

---
 projects/01/DMux4Way.hdl |  2 ++
 projects/01/DMux8Way.hdl | 25 +++++++++++++++++++++++--
 projects/01/DMux8Way.out | 17 +++++++++++++++++
 3 files changed, 42 insertions(+), 2 deletions(-)
 create mode 100644 projects/01/DMux8Way.out

diff --git a/projects/01/DMux4Way.hdl b/projects/01/DMux4Way.hdl
index eaefeee..a9b4b82 100644
--- a/projects/01/DMux4Way.hdl
+++ b/projects/01/DMux4Way.hdl
@@ -11,6 +11,8 @@
  *                {0, 0, 0, in} if sel == 11
  */
 
+// COST = 37
+
 CHIP DMux4Way {
     IN in, sel[2];
     OUT a, b, c, d;
diff --git a/projects/01/DMux8Way.hdl b/projects/01/DMux8Way.hdl
index e24fcaa..88f2a47 100644
--- a/projects/01/DMux8Way.hdl
+++ b/projects/01/DMux8Way.hdl
@@ -11,10 +11,31 @@
  *                            {0, 0, 0, 0, 0, 0, 0, in} if sel == 111
  */
 
+// COST = 37 + 8*8 = 101
 CHIP DMux8Way {
     IN in, sel[3];
     OUT a, b, c, d, e, f, g, h;
 
     PARTS:
-    // Put your code here:
-}
\ No newline at end of file
+
+    // This makes our "repeated building block" - which we repeat twice
+    // Same as how we do it in DMux4Way
+    DMux4Way(in=in, sel[0]=sel[0], sel[1]=sel[1], a=w, b=x, c=y, d=z);
+
+
+    // If sel[2] is 1:
+    // set a,b,c,d to 0
+    // else set a,b,c,d to w,x,y,z
+    Mux(a=w, b=false, sel=sel[2], out=a);
+    Mux(a=x, b=false, sel=sel[2], out=b);
+    Mux(a=y, b=false, sel=sel[2], out=c);
+    Mux(a=z, b=false, sel=sel[2], out=d);
+
+    // If sel[2] is 0:
+    // set e,f,g,h to 0
+    // else set e,f,g,h to w,x,y,z
+    Mux(a=false, b=w, sel=sel[2], out=e);
+    Mux(a=false, b=x, sel=sel[2], out=f);
+    Mux(a=false, b=y, sel=sel[2], out=g);
+    Mux(a=false, b=z, sel=sel[2], out=h);
+}
diff --git a/projects/01/DMux8Way.out b/projects/01/DMux8Way.out
new file mode 100644
index 0000000..ebf9304
--- /dev/null
+++ b/projects/01/DMux8Way.out
@@ -0,0 +1,17 @@
+| in  |  sel  |  a  |  b  |  c  |  d  |  e  |  f  |  g  |  h  |
+|  0  |  000  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  0  |  001  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  0  |  010  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  0  |  011  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  0  |  100  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  0  |  101  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  0  |  110  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  0  |  111  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  1  |  000  |  1  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  1  |  001  |  0  |  1  |  0  |  0  |  0  |  0  |  0  |  0  |
+|  1  |  010  |  0  |  0  |  1  |  0  |  0  |  0  |  0  |  0  |
+|  1  |  011  |  0  |  0  |  0  |  1  |  0  |  0  |  0  |  0  |
+|  1  |  100  |  0  |  0  |  0  |  0  |  1  |  0  |  0  |  0  |
+|  1  |  101  |  0  |  0  |  0  |  0  |  0  |  1  |  0  |  0  |
+|  1  |  110  |  0  |  0  |  0  |  0  |  0  |  0  |  1  |  0  |
+|  1  |  111  |  0  |  0  |  0  |  0  |  0  |  0  |  0  |  1  |