Chapter 10 - Arithmetic Circuits
The public's imagination
has been captured by computers and modern-day calculators,
probably because these machines perform arithmetic tasks
with such fantastic speed and accuracy. This chapter deals
with some logic circuits that can add and subtract. (Of
course, the adding and subtracting is done in binary.)
Regular logic gates will be wired together
to form adders and subtractors.
Basic adder and subtractor circuits are combinational logic
circuits, but they are commonly used with various latches
and registers to hold data.
In the central processing unit
(CPU) of a computer, arithmetic is handled in a
section commonly called the arithmetic-logic unit
(ALU). This section within the CPU can usually
add and subtract, multiply and divide, complement, compare,
shift and rotate, increment and decrement, and perform logic
operations such as AND, OR, and XOR.
Many older microprocessors
and several modern microcontrollers (a
miniature microprocessor used mainly for control purposes)
do not have multiply and divide commands in their instruction
textbook files for this chapter.
experiments manual files for all chapters.
Save the files above to your computer's
desktop. Find the file, double-click it and unzip to a convenient
location. You will need Electronics Workbench®, version
5 to use the files.
Extend your learning
with additional assignments.