Design and Implementation of Arithmetic and Logic Unit (ALU)

ALU is the fundamental building block of many processors like Central Processing Unit(CPU), Floating point Unit (FPU's), Graphical Processing Unit(GPU's). ALUs are used in digital computers, and they are a component of logic design whose goal is to create the right algorithms to make the most use of the hardware which was available to us. This research study describes the VLSI design of an ALU and the functionality of this design has been simulated and tested using Xilinx ISE design suite 14.7. which is used to validate the design at gate level and chip level implementation. The proposed ALU is designed using a total of 9 operations which includes Addition, Subtraction, Multiplication, Shifting, Comparison, AND, OR, NOT, and XOR.