$(3)(7$ marks$)$ Read the instructions carefully. You need to draw the full solution. Suppose that we need to detect the status of the result from an

addition$/$subtraction operation, whose operands are of $32$ bits. We need to consider the

addition for signed numbers and unsigned numbers, respectively. The control unit

generates two signals called $s_1{s}_0$ for this purpose. The truth table for these two signals is

as follows.

Two signals $C_{32}$ and $C_{31}$ are directed to the outside from the adder for further use. One

signal $A_{31},$ which is the highest bit of the sum result from the adder, is also directed to the

outside for further use. Create a circuit using the above signals to generate a signal status,

to implement the functionality specified by the above truth table. Draw your solution.

You can use multiplexers, in addition to other components.