The serial adder of Fig. 6.6 uses two four-bit registers. Register A holds the binary nu...

The serial adder of Fig. 6.6 uses two four-bit registers. Register A holds the binary number 0101 and register B holds 0111. The carry flip-flop is initially reset to 0. List the binary values in register A and the carry flip-flop after each shift. (HDL—see Problem 6.54).