8 Bit ALU design is a combinational circuit which adds two binary numbers of 8 bit lenth.Which is more useful for both bachelor as well as masters students.
3. Aim Of the project is to design a 8-bit ALU which
accepts two 8-bit binary numbers and displays
results.
It performs arithmetical , logical and relational
operations.
ALU is designed by using of gates like
AND,OR,NAND,NOR,NOT,XOR and XNOR gates.
Verilog code is used for designing and EDA tool is
used for simulation.
4. An arithmetic logic unit (ALU) is a major
component of the central processing unit of a
computer system.
It does all processes related to arithmetic and
logic operations that need to be done on
instruction words.
In some microprocessor architectures, the ALU
is divided into the arithmetic unit (AU) and the
logic unit (LU).
5. Mathematician John von Neumann proposed the
ALU concept in 1945.
The first ALU was introduced in 1948 that
operated on single data bit.
In some early microprocessors employed a
narrow ALU which performs 32-bit operation in
two cycles with a 16-bit ALU.
Over time, transistor geometries shrank further
and it became feasible to build wider ALUs on
microprocessors.
18. The Arithmetic Logic Unit is an important part
of computer CPU’s. We learned how to produce
different arithmetic operations and logic
functions by using various select singles for a
single circuit.
The ALU can also be designed using reversible
logic gates instead of conventional gates.
The reversibility significantly reduces the use
and loss of information bits.