1. ES 112 Project
2 bit ALU

2. Design a 2-bit ALU
Design a 2-bit ALU capable of performing the following operations:
ADD
Multiplication
Bitwise AND
Bitwise OR

3. Description of ADD operation
Assume that the bits are unsigned
Inputs (A1, A0) and (B1, B0)
Implement the 2 bit adder in a “flat schematic”, i.e. draw all your gates in the same schematic. Do not use subcircuits for this exercise.

4. Description of a Multiply Operation
Inputs (A1, A0) and (B1, B0)
Implement the 2 bit multiplier in a “flat schematic

5. Definition of the 4-1 MUX S1 S0 Operation Multiplication 1 Add
Multiplication 1
Add
Bitwise AND
Bitwise OR

6. Multiply S1 S0 A1 A0 B1 B0 D3 D2 D1 D0 1

7. Add Operation S1 S0 A1 A0 B1 B0 D3 D2 D1 D0 1

8. AND Operation S1 S0 A1 A0 B1 B0 D3 D2 D1 D0 1

9. OR Operation S1 S0 A1 A0 B1 B0 D3 D2 D1 D0 1

10. Schematic of 2 Bit Adder

11. Schematic of 2 Bit Multiplier

12. Schematic of 2 Bit AND

13. 2 Bit OR

14. Schematic of 4-1 Mux

15. Top Level Schematic