task ovl_error;
    input [8*63:0] err_msg;
  begin
    error_count = error_count + 1;
    `ifdef ASSERT_MAX_REPORT_ERROR
      if (error_count <= `ASSERT_MAX_REPORT_ERROR)
    `endif
        $display("OVL_ERROR : %s : %s : %0s : severity %0d : time %0t : %m",
          assert_name, msg, err_msg, severity_level, $time);
      if (severity_level == 0) ovl_finish;
    end
  endtask

  task ovl_finish;
    begin
      #100 $finish; 
    end
  endtask

  task ovl_init_msg;
    begin
      $display("OVL_NOTE: %s initialized @ %m Severity: %0d, Message: %s",
                assert_name,severity_level, msg);
    end
  endtask