module fibonacci (input_number, reset_n, go, clk, done, output_number); 
    input [4:0] input_number; 
    input reset_n ; 
    input go; 
    input clk; 
    output done; 
    output [15:0] output_number; 

    reg [15:0] fibN;
    reg [15:0] fibNm1;
    reg [4:0] fibnum;

    always @ (posedge clk) begin
	// good for debugging
	$display("%h %h %h %h  %h %h %h  posedge", input_number, reset_n, go, clk, fibN, fibNm1, fibnum);

    end

endmodule