SOLVED: 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 CLKSI so Shift register A (Augend)xSyFASerial inputSI so Shift register B (Addend)ZDClear

The following serial adder uses two four bit registers. Registe... | Filo

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