From a000308104aab27c2dde9a306f1bc654b2db4806 Mon Sep 17 00:00:00 2001
From: Yuchen Pei <me@ypei.me>
Date: Wed, 29 Nov 2017 12:30:41 +0100
Subject: first commit

---
 tools/builtInChips/DMux4Way.hdl | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 tools/builtInChips/DMux4Way.hdl

(limited to 'tools/builtInChips/DMux4Way.hdl')

diff --git a/tools/builtInChips/DMux4Way.hdl b/tools/builtInChips/DMux4Way.hdl
new file mode 100644
index 0000000..110bb4e
--- /dev/null
+++ b/tools/builtInChips/DMux4Way.hdl
@@ -0,0 +1,22 @@
+// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: tools/builtIn/DMux4Way.hdl
+
+/**
+ * 4-way demultiplexor.  
+ * {a,b,c,d} = {in,0,0,0} if sel == 00
+ *             {0,in,0,0} if sel == 01
+ *             {0,0,in,0} if sel == 10
+ *             {0,0,0,in} if sel == 11
+ */
+
+
+CHIP DMux4Way {
+
+    IN  in, sel[2];
+    OUT a, b, c, d;
+
+    BUILTIN DMux4Way;
+}
+
-- 
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