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;
    3'b010:y=x>>sh;
    3'b011:y=$signed(x)>>>sh; //arithmetic right shift is only for signed, input [x]is a unsigned so to make it to signed the keyword is $signed(x)
    3'b100:y=(x<<sh)|(x>>(8-sh));
    3'b101:y=(x>>sh)|(x<<(8-sh));//in .py book
    3'b110:y=x;
    3'b111:y=x;
    endcase

end

endmodule