gistfile1.txt

module testMul3 ; 
reg [7:0] in ; 
reg error ; 
wire out ;


Multiple_of_3 dut(in, out) ;
initial begin
  in = 0 ; error = 0 ; 

  repeat(256) begin
  #100
  // $display("%d %b",in,out) ; 
  if(out != ((in %3) == 0)) begin
    $display("ERROR %d -> %b",in,out) ;
    error = 1 ;
  end
  in = in + 1 ;
 end
  if(error == 0) $display("PASS") ; 
 end
endmodule