70. Universal Barrel Shifter

How do you plan to solve it?

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

parameter PASS=3'b000;
parameter LSL=3'b001;
parameter LSR=3'b010;
parameter ASR=3'b011;
parameter ROL=3'b100;
parameter ROR=3'b101;


always @(*) begin

    case (mode)
    PASS: y = x;
    LSL: y = x << sh;
    LSR: y = x >> sh;
    ASR: y = x >>> sh;
    ROL: y = (x << sh) | (x >> 8 - sh);
    ROR: y = (x >> sh) | (x << 8 - sh);
    default: y = x;


    endcase

end
endmodule