Question: 5. A 4-bit binary subtractor with overflow detection can be constructed using: (a) A 4-bit binary adder and a magnitude comparator (b) A 4-bit

5. A 4-bit binary subtractor with overflow detection can be constructed using: (a) A 4-bit binary adder and a magnitude comparator (b) A 4-bit

5. A 4-bit binary subtractor with overflow detection can be constructed using: (a) A 4-bit binary adder and a magnitude comparator (b) A 4-bit binary adder, 4 XOR gates and a NAND gate (c) A 4-bit binary adder, 5 NAND gates (d) A 4-bit binary adder with an enable signal and an XOR gate lament Design 8-bit two's complement adder/substractor circuit using full adder and additional circuit. Positive two's complement number are exactly the same as regular true binary and can be added using regular binary addition. Substraction in two's complement arithmetic is performed by converting to number to be subtracted to a negative number in the two's complement form then using regular binary addition. Use a switch as a complementing switch between add and subtract. Implement your design in FPGA by showing your output in LED display.

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