44. Bus Error Checker

How do you plan to solve it?

module error_checker_xz (
    input  [7:0] bus,
    output       all_known,
    output       has_unknown,
    output [7:0] bus_if_known
);
    wire parity = ^bus;

    assign all_known  = (parity === 1'b0 || parity === 1'b1);
    assign has_unknown = ~all_known;

    assign bus_if_known = all_known ? bus : 8'h00;

endmodule