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; // PASS
            3'b001: y = x << sh; // LSL
            3'b010: y = x >> sh; // LSR
            3'b011: y = $signed(x) >>> sh; // ASR
            3'b100: y = (x << sh) | (x >> (8 - sh)); // ROL
            3'b101: y = (x >> sh) | (x << (8 - sh)); // ROR
            default: y = x; // reserved
        endcase
    end
endmodule