Task $3$:

$($a$)$ Use LogicWorks to construct a $4-$bit adder using $1-$bit adders. It contains $41-$bit

adders. Simulate the inputs and outputs $($also display the carry$-$out with a binary

probe$).$

Test the full adder

Design a simpler full adder by allowing XOR gates

Output:

Create a single pdf file of the schematic you created for each of the completed

circuits

$($b$)$ Use the same knowledge of adders to construct a $n-$bit ALU by using $n1-$bit ALUs.

The truth table for the $4-$bit ALU circuit is shown below:

Set the Ainvert, Binvert, Op$1,$ and Op$2$ bits to perform the following operations to

test your circuit. Use the indicated test inputs for A and B$.$ Give the values of

Output, Carry$-$out, Zero, and Overflow for each test:

Output:

Create a pdf file of the schematic you created.

Add the recorded test output tables.