70. Universal Barrel Shifter

How do you plan to solve it?

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