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project-1-boolean-logic/01/Mux8Way16.hdl

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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/1/Mux8Way16.hdl
+/**
+ * 8-way 16-bit multiplexor:
+ * out = a if sel = 000
+ *       b if sel = 001
+ *       c if sel = 010
+ *       d if sel = 011
+ *       e if sel = 100
+ *       f if sel = 101
+ *       g if sel = 110
+ *       h if sel = 111
+ */
+CHIP Mux8Way16 {
+    IN a[16], b[16], c[16], d[16],
+       e[16], f[16], g[16], h[16],
+       sel[3];
+    OUT out[16];
+
+    PARTS:
+    Mux4Way16(a=a, b=b, c=c , d=d , sel=sel[0..1] , out=muxabcd );
+    Mux4Way16(a=e , b=f , c=g , d=h , sel=sel[0..1] , out=muxefgh );
+
+    Mux16(a=muxabcd , b=muxefgh , sel=sel[2] , out=out );
+
+    //// Replace this comment with your code.
+}