59. Absolute Value

How do you plan to solve it?

module abs8_func (
    input  signed [7:0] a,
    output       [7:0] abs
);
    // ---------- Write function here----------
function [7:0] abs8;
    input [7:0] a;
    begin
        abs8 = a[7] ? -a : a;
    end
endfunction

    // Function called here
    assign abs = abs8(a);

endmodule