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;                      // no shift
        3'b001: y <= x << sh;                // logical left shift
        3'b010: y <= x >> sh;                // logical right shift
        3'b011: y <= $signed(x) >>> sh;      // arithmetic right shift
        3'b100: y <= (x << sh) | (x >> (8-sh)); // rotate left
        3'b101: y <= (x >> sh) | (x << (8-sh)); // rotate right
        default: y <= x;
    endcase
end

endmodule