Hardware Posit Numeration System primarily based on Arithmetic Operations
Alapati Madhu Sravya, N. Swetha, Asisa Kumar Panigrahy · 2022 3rd International Conference for Emerging Technology (INCET) · 2022
In this paper we discuss about the newly developed universal number system called posit number system which is also called as type-3 unum system. To overcome the disadvantages of floating point number system posits has been proposed, they increase overall dynamic range and accuracy in comparison with the floats. This posit system format consists of sign bit, regime bit, exponent bit and mantissa bit. Its mathematical notation consists of a run-time variable exponent part. This work implements the open source hardware Posit numeration system primarily based on Arithmetic Operations on Xilinx ISE tool. This system being at the starting stage has very restricted hardware solutions for its arithmetic architectures. The proposed work concentrates on the algorithmic development and generic HDL generators for basic posit arithmetic, that includes the adder, multiplier, and division arithmetic for the given posit word length (N) of 32-bit with exponent size (ES) of 6-bit and its comparison with various bit lengths.