This assignment requires you to control your ALU using a finite state machine.

Your ALU should be able to perform at least 4 operations on 4-bit inputs.

Control ALU without feedback: this circuit requires you to create a FSM that causes your ALU to perform all of its operations at least once.Control ALU with feedback: this circuit requires you to create a FSM that causes your ALU to perform its instructions and take into account what happened as a result. In this case, the FSM will respond based on the ALU's results. You are free to choose the conditions. However, there should be a condition that causes each instruction to be performed, as well as one that causes each to not be performed.

List all of the inputs needed by the ALU

List all of the control signals that will be generated by the FSM

Create both circuits in VHDL, and use both as components in a top-level system.

Create a testbench that interfaces with your top-level and causes your FSM to go through all of its states.2

Control ALU with feedback: this circuit requires you to create a FSM that causes your ALU to perform its instructions and take into account what happened as a result. In this case, the FSM will respond based on the ALU's results. You are free to choose the conditions. However, there should be a condition that causes each instruction to be performed, as well as one that causes each to not be performed.

List all of the inputs needed by the ALU

List the conditions that cause the FSM to perform one operation or another.

List all of the inputs needed by the FSM.

List all of the control signals that will be generated by the FSM

Create both circuits in VHDL, and use both as components in a top-level system.

Create a testbench that interfaces with your top-level and causes your FSM to go through all of its states.