proxmark3/fpga/mux16.v

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//-----------------------------------------------------------------------------
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// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
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// See LICENSE.txt for the text of the license.
//-----------------------------------------------------------------------------
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// 16 inputs to 1 output multiplexer
module mux16(
input [3:0] sel,
output reg y,
input x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15
);
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always @(*)
begin
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// y = x[sel];
case (sel)
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4'd0: y = x0;
4'd1: y = x1;
4'd2: y = x2;
4'd3: y = x3;
4'd4: y = x4;
4'd5: y = x5;
4'd6: y = x6;
4'd7: y = x7;
4'd8: y = x8;
4'd9: y = x9;
4'd10: y = x10;
4'd11: y = x11;
4'd12: y = x12;
4'd13: y = x13;
4'd14: y = x14;
4'd15: y = x15;
endcase
end
endmodule