17. Binary to Gray Code Converter

How do you plan to solve it?

/*Write your code here*/
module bin2gray4(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];
  */

   assign gray_out = bin_in ^ (bin_in>>1);
endmodule