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 signed [7:0]x;
begin
    if(x<0)
    abs8=-x;
    else 
    abs8=x;
end
endfunction
    assign abs = abs8(a);

endmodule