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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/01/Mux.hdl

+

+/** 

+ * Multiplexor:

+ * out = a if sel == 0

+ *       b otherwise

+ */

+

+CHIP Mux {

+    IN a, b, sel;

+    OUT out;

+

+    PARTS:

+    // Put your code here:

+    Not (in=sel, out=notsel);

+    And (a=a, b=notsel, out=aandnotsel);

+    And (a=sel, b=b, out=selandb);

+    Or (a=aandnotsel, b=selandb, out=out);

+}