Mux9to1v
From HDLBits
Create a 16-bit wide, 9-to-1 multiplexer. sel=0 chooses a, sel=1 chooses b, etc. For the unused cases (sel=9 to 15), set all output bits to '1'.
Expected solution length: Around 15 lines.
Module Declaration
module top_module(
input [15:0] a, b, c, d, e, f, g, h, i,
input [3:0] sel,
output [15:0] out );