17. Binary to Gray Code Converter

How do you plan to solve it?

/*Write your code here*/
module bin2gray4(bin_in,gray_out);
input [3:0] bin_in;
output [3:0] gray_out;
assign gray_out[3]= bin_in[3];
assign gray_out[2] = bin_in[3] ^ bin_in[2];
assign gray_out[1] = bin_in[2] ^ bin_in[1];
assign gray_out[0] = bin_in[1] ^ bin_in[0];
endmodule