44. Bus Error Checker

How do you plan to solve it?

/*Write your code here*/
module error_checker_xz(
    input [7:0]bus,
    output reg all_known,has_unknown,
    output reg [7:0]bus_if_known
); 
  reg [7:0]temp;

  //initial temp = bus;
  
  always@(*)begin
    temp = bus;
    if(bus == temp)begin
        bus_if_known = temp;
        all_known = 1'b1;
        has_unknown =1'b0;
    end
    else begin
        all_known = 1'b0;
      has_unknown =1'b1;
      bus_if_known =8'h00;
    end
  end
endmodule