Hardware Implementation of Number Inversion Function

Nowadays, number inversion is of great significance and a complex arithmetical operator, especially the implementation in hardware. It provides a higher speed performance and lower power consumption. Initially, the conversion of the inputs to floating-point numbers contains sign, exponent, and mantissa parts. The scope of the project is to perform an approximation of the number inversion function. In this paper, the number inversion function carried out by two methods: one based on Harmonized Parabolic Synthesis and the other one on an unrolled Newton-Raphson algorithm. It is worth mentioning that the implementation of these two methods performed as an Application Specific Integrated Circuit using a 65nm Complementary Metal Oxide Semiconductor technology with Low Power High Threshold Voltage transistors. Furthermore, the investigation and comparison for various aspects such as accuracy, error behavior, chip area, power consumption, and performance for both methods are realizable. (Less)