VHDL Library of Arithmetic Units

A comprehensive library of arithmetic units written in synthesizable VHDL code has been developed. The library contains components for a variety of arithmetic operations and for different speed requirements. The library components are implemented as circuit generators in parameterized structural VHDL code. Their modular and well-documented source code allows for simple usage and easy customization. Highly efficient circuit architectures are used, which are optimized for synthesis and cell-based design. In particular, the implemented adder architectures are more flexible and have better performance than the ones typically used in commercial products. This public domain VHDL library is platform independent, and it provides circuits with comparable performance, but higher flexibility and a larger diversity of arithmetic operations compared to commercial data path libraries. Keywords VHDL library, circuit synthesis, cell-based VLSI, computer arithmetic. 1 Introduction Arithmetic units ar..