tests/asicworld/code_hdl_models_pri_encoder_using_assign.v

   1 //-----------------------------------------------------
   2 // Design Name : pri_encoder_using_assign
   3 // File Name   : pri_encoder_using_assign.v
   4 // Function    : Pri Encoder using assign
   5 // Coder       : Deepak Kumar Tala
   6 //-----------------------------------------------------
   7 module pri_encoder_using_assign (
   8 binary_out , //  4 bit binary output
   9 encoder_in , //  16-bit input
  10 enable       //  Enable for the encoder
  11 );
  12
  13 output [3:0] binary_out ;
  14 input  enable ;
  15 input [15:0] encoder_in ;
  16
  17 wire [3:0] binary_out ;
  18
  19 assign  binary_out  = (!enable) ? 0 : (
  20     (encoder_in == 16'bxxxx_xxxx_xxxx_xxx1) ? 0 :
  21     (encoder_in == 16'bxxxx_xxxx_xxxx_xx10) ? 1 :
  22     (encoder_in == 16'bxxxx_xxxx_xxxx_x100) ? 2 :
  23     (encoder_in == 16'bxxxx_xxxx_xxxx_1000) ? 3 :
  24     (encoder_in == 16'bxxxx_xxxx_xxx1_0000) ? 4 :
  25     (encoder_in == 16'bxxxx_xxxx_xx10_0000) ? 5 :
  26     (encoder_in == 16'bxxxx_xxxx_x100_0000) ? 6 :
  27     (encoder_in == 16'bxxxx_xxxx_1000_0000) ? 7 :
  28     (encoder_in == 16'bxxxx_xxx1_0000_0000) ? 8 :
  29     (encoder_in == 16'bxxxx_xx10_0000_0000) ? 9 :
  30     (encoder_in == 16'bxxxx_x100_0000_0000) ? 10 :
  31     (encoder_in == 16'bxxxx_1000_0000_0000) ? 11 :
  32     (encoder_in == 16'bxxx1_0000_0000_0000) ? 12 :
  33     (encoder_in == 16'bxx10_0000_0000_0000) ? 13 :
  34     (encoder_in == 16'bx100_0000_0000_0000) ? 14 : 15);
  35
  36 endmodule