The default type is real for fixed point format and exponent format. We can do type casting to covert from real values to shortreal type. Following are real literals examples.

• 3.14
• 2.0e16

  1 `timescale 1ns/100ps
  2 module real_literals ();
  3 
  4 real  a;
  5 shortreal  b;
  6 
  7 initial begin
  8   $monitor ("@ %gns a = %e b = %e ", $time, a, b);
  9   a = '0;
 10   b = 1.0e2;
 11    #1  a = 2e5;
 12   // Type casting
 13    #1  b = shortreal'(a);
 14    #1  a = 2.1E-2;
 15   // Type casting
 16    #1  b = shortreal'(a);
 17    #1  $finish;
 18 end
 19 
 20 endmodule

 @ 0ns a = 0.000000e+00 b = 1.000000e+02
 @ 1ns a = 2.000000e+05 b = 1.000000e+02
 @ 2ns a = 2.000000e+05 b = 2.000000e+05
 @ 3ns a = 2.100000e-02 b = 2.000000e+05
 @ 4ns a = 2.100000e-02 b = 2.100000e-02

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