Question

1-Bit ALU Circuit: Please include drawing of circuits with Gates

a. Your ALU should have 6 inputs total, and 2 outputs total. Two main data inputs, A and B, the inputs controlling the function F2, F1, and F0, and also Cin. The outputs then are Q, the output of the function applied to A and B,as well as the output Cout. The ALU should have addition and subtraction functionality.

b. You may use any components in Digital apart from any ALU component. You can use embedded circuits in digital to make your adder,subtractor circuits and then add them to your ALU circuit.Using embedded circuits in digital gives a neat circuit.

Answer 1

The ALU design question involves creating a 1-bit ALU circuit using basic digital components to perform binary addition and subtraction, with six inputs and two outputs, each carrying out specific functions within the circuit based on transistors' behavior in managing binary code.

Step-by-step explanation:

The question pertains to the design of a 1-bit Arithmetic Logic Unit (ALU) using digital circuits with gates that can perform addition and subtraction. The ALU should have six inputs (A, B, F2, F1, F0, and Cin) and two outputs (Q and Cout). A and B are the main data inputs, F2 to F0 represent function control inputs that dictate the operations of the ALU, and Cin is the carry input. The outputs Q and Cout will represent the result of the function applied to A and B, and the carry output, respectively.

For the addition operation, a half-adder or full-adder circuit can be used with a carry-in. Subtraction can be implemented by complementing the B input and using an adder circuit with an adjusted carry-in to account for the two's complement arithmetic. These basic components and principles grounded in the behavior of transistors and binary code manipulation are key in the construction of an ALU. Remember, you should take into account that each connection should be linearly independent, avoiding redundant paths that do not contribute to the functionality.