17. Binary to Gray Code Converter

How do you plan to solve it?

// ============================================================
// Module: bin2gray4
// Description: Converts 4-bit binary input to 4-bit Gray code
// ============================================================
module bin2gray4 (
    input  [3:0] bin_in,     // 4-bit binary input
    output [3:0] gray_out    // 4-bit Gray code output
);

    // Binary-to-Gray conversion logic
    assign gray_out[3] = bin_in[3];               // MSB same as binary
    assign gray_out[2] = bin_in[3] ^ bin_in[2];   // Next bits are XORed
    assign gray_out[1] = bin_in[2] ^ bin_in[1];
    assign gray_out[0] = bin_in[1] ^ bin_in[0];

endmodule