A serial adder can be implemented from two shift registers, a full adder, a D flip flop, and an AND gate (below) What are the changes that should be made to the circuit in order to convert it to a serial subtractor Shift control ST Shift register A (Augend) so CLK Serial input So Shift register B Si (Addend) 0 Clear Shift control ST Shift register A (Augend) so CLK Serial input So Shift register B Si (Addend) 0 Clear

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Question: A serial adder can be implemented from two shift registers, a full-adder, a D flip-flop, and an AND gate (below). What are the changes that

A serial adder can be implemented from two shift registers, a full-adder, a D flip-flop, and an AND gate (below). What are the changes that should be made to the circuit in order to convert it to a serial subtractor?

A serial adder can be implemented from two shift registers, a full-adder,

Shift control ST Shift register A (Augend) so CLK Serial input So Shift register B Si (Addend) 0 Clear Shift control ST Shift register A (Augend) so CLK Serial input So Shift register B Si (Addend) 0 Clear

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