tests/asicworld/code_hdl_models_encoder_using_case.v

   1 //-----------------------------------------------------
   2 // Design Name : encoder_using_case
   3 // File Name   : encoder_using_case.v
   4 // Function    : Encoder using Case
   5 // Coder       : Deepak Kumar Tala
   6 //-----------------------------------------------------
   7 module encoder_using_case(
   8 binary_out , //  4 bit binary Output
   9 encoder_in , //  16-bit Input
  10 enable       //  Enable for the encoder
  11 );
  12 output [3:0] binary_out  ;
  13 input  enable ;
  14 input [15:0] encoder_in ;
  15
  16 reg [3:0] binary_out ;
  17
  18 always @ (enable or encoder_in)
  19 begin
  20   binary_out = 0;
  21   if (enable) begin
  22     case (encoder_in)
  23       16'h0002 : binary_out = 1;
  24       16'h0004 : binary_out = 2;
  25       16'h0008 : binary_out = 3;
  26       16'h0010 : binary_out = 4;
  27       16'h0020 : binary_out = 5;
  28       16'h0040 : binary_out = 6;
  29       16'h0080 : binary_out = 7;
  30       16'h0100 : binary_out = 8;
  31       16'h0200 : binary_out = 9;
  32       16'h0400 : binary_out = 10;
  33       16'h0800 : binary_out = 11;
  34       16'h1000 : binary_out = 12;
  35       16'h2000 : binary_out = 13;
  36       16'h4000 : binary_out = 14;
  37       16'h8000 : binary_out = 15;
  38    endcase
  39   end
  40 end
  41
  42 endmodule