module comb (
    input  logic clk,
    input  logic rstn,
    input  logic in0,
    input  logic in1,
    output logic out0,
    output logic out1
);
  always_comb begin
    if (in0 == 0) begin
      out0 = 0;
      out1 = 1;
    end else begin
      out0 = in0;
      out1 = in1;
    end
  end
endmodule