PART 4: Using the custom circuits you built in Parts 1-3, built a 4 bit 2's Complement multiplier that uses the inversion method discussed in class. HINTS: INVERSION METHOD: 1) If input A is negative,...

Need 2 different variations answers and with explanation please. Thank you.

Extracted text: PART 4: Using the custom circuits you built in Parts 1-3, built a 4 bit 2's Complement multiplier that uses the inversion method discussed in class. HINTS: INVERSION METHOD: 1) If input A is negative, invert it. If input A is positive, leave it alone. 2) If input B is negative, invert it. If input B is positive, leave it alone. 3) Multiply A and B. 4) If both A and B originally had the same sign (both positive or both negative), do nothing. 5) If A and B originally had different signs (one was positive, the other negative), invert the product.


Extracted text: 4 bit 2's Complement Multiplier INPUT A: 4 bit 2's Complement number INPUT B: 4 bit 2's Complement number OUTPUT: the product of A x B represented as a 8 bit 2's Complement number You are only allowed to use the basic gates: NOT, AND, OR, XOR. You may however, use these basic gates to build your own custom circuits (i.e. Adder). You are NOT ALLOWED to use Logisim built in circuits. Each custom circuit is to be implemented as a sub-circuit. PART 1: Build a 4 bit controlled 2's Complement Inverter PART 2: Build a 8 bit controlled 2's Complement Inverter PART 3: Build a 4 Bit UNSIGNED Multiplier A: 4 Bit Input B: 4 Bit Input Multiplier 0000 000O