(Solved): unsigned number adder-subtractor using 2s complement of t subtraction, and (3) selective 2 s c ...

unsigned number adder-subtractor using $2\mathrm{s}$ complement of $t$ subtraction, and (3) selective 2 s complement result correction -64. *The adder-subtractor circuit of Figure 3-45 has the follow input select $S$ and data inputs $A$ and $B$ : Determine, in each case, the values of the outputs $S_3,S_2,S_1,S_0$, ar