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 ) & 8'hFF;
            3'b010 : y = ( x >> sh );
            3'b011 : y = $signed(x) >>> sh;
            3'b100 : y = ((x << sh) | (x >> (8-sh))) & 8'hFF;
            3'b101 : y = ((x >> sh) | (x << (8-sh))) & 8'hFF;
            default : y = x;
        endcase
    end
endmodule