module time_compare
  (input [63:0] time_now,
   input [63:0] trigger_time,
   output now,
   output early,
   output late,
   output too_early);

    assign now = time_now == trigger_time;
    assign late = time_now > trigger_time;
    assign early = ~now & ~late;
    assign too_early = 0; //not implemented

endmodule // time_compare