Design of High-Performance Dynamically Truncated Approximate Multiplier for VLSI Applications

Abstract

Our project aims to create a pipelined-based approximate multiplier, integrating pipelining techniques into its design, inspired by successful approximations such as the high-accuracy approximate compressor. Recognizing the vital role of multipliers in applications needing extensive multiplication, their impact on power consumption is significant. An approximate multiplier proves to be a practical approach for minimizing critical path delay in situations where precision is less important. Balancing speed, space, power, and precision is essential for achieving swift computation. Utilizing an approximate multiplier allows for compromises between accuracy, energy efficiency, and area to improve performance. The seamless integration of Xilinx tools not only streamlines the design, simulation, and verification processes but also ensures that the multiplier adheres to the rigorous standards demanded by real-world applications, particularly within the realm of ALUs. The ALU performs a range of arithmetic operations (addition, subtraction, multiplication, division) and bitwise operations (AND, OR, XOR, etc.). It also includes a logic unit that handles logical operations and numerical tests, such as determining if a number is negative or if the output is zero.