70. Universal Barrel Shifter

How do you plan to solve it?

/*Write your code here*/
module univ_barrel8 (
    input [7:0] x,
    input [2:0] sh,
    input [2:0] mode,
    output reg [7:0] y 
);

    always @* begin
        case (mode)
            3'b000 : y = x; 
            3'b001 : y = x << sh;
            3'b010 : y = x >> sh;
            3'b011 : y = $signed(x) >>> sh; 
            3'b100 : y = (x << sh) | (x >> (8 - sh)); // ROL
            3'b101 : y = (x >> sh) | (x << (8 - sh)); // ROR
            default : y = x;
        endcase
    end

endmodule