Step 1: What are the two main circuit blocks of an ALU bit slice? Click or tap here to enter text. To implement a multifunction logic block with eight logic functions, how many MUX select bits would be needed? Click or tap here to enter text. Step 2: What is the number of control signals needed if we wanted to implement a Multifunction Logic Block that can perform: INV, NAND, NOR, AND, OR, and XOR? Click or tap here to enter text. Step 3: How can you implement subtract function in an arithmetic block using only an adder circuit and standard logic gates? Click or tap here to enter text. One possible function of an ALU arithmetic block is "increment". Define what 'increment A means mathematically? Click or tap here to enter text