Objectives: a) To design 1-bit and 4-bit ALUs b) To implement the design using Spartan 3A FPGA board a) Design 1-bit ALU that support the execution of the following instructions: OR AND COMPLEMENT A ADD b) Simulate your design e) Implement and demo your design for the 1-bit ALU using Spartan 3A FPGA board Part 2 (WEEK 2) Extend your design for a 4-bit ALU Draw the schematic diagram for the 4-bit ALU design Perform the simulation to test your design Implement your design to the board Table 1: Operation Code for the ALU OP 1 OP 0 OR AND COMPLEMENT 0 ADD *Note: When you design a 4-bit ALU you should replace the OR operation with a DECREMENT A operation