Problem with combinational circuit ???????

All you friends out there i need combinational logic diagrams of





1. a combinational circuit that takes a 4-bit binary integer X and produces as output an approximate square root of X.





2. Design, using any MSI parts, a signed-magnitude adder. The inputs to this adder are two 5-bit signed numbers (A %26amp; B) each having a 4-bit magnitude and a sign bit. The adder output S is a 6-bit signed result (5-bit magnitude and a sign bit).








any help in this context will be highly appriteated

Problem with combinational circuit ???????
sorry, i dont know