fpga/mux8.v

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // See LICENSE.txt for the text of the license.
  15 //-----------------------------------------------------------------------------
  16
  17 // 8 inputs to 1 output multiplexer
  18 module mux8(
  19     input [2:0] sel,
  20     output reg y,
  21     input x0, x1, x2, x3, x4, x5, x6, x7
  22 );
  23
  24 always @(*)
  25 begin
  26     // y = x[sel];
  27     case (sel)
  28         3'd0: y = x0;
  29         3'd1: y = x1;
  30         3'd2: y = x2;
  31         3'd3: y = x3;
  32         3'd4: y = x4;
  33         3'd5: y = x5;
  34         3'd6: y = x6;
  35         3'd7: y = x7;
  36     endcase
  37 end
  38
  39 endmodule