Implementation of high-speed fixed-point dividers on FPGA

Abstract

Study deals with implementations of fixed-point division modules based on different algorithms on basis of Xilinx FPGAs. We show that our implementation of the nonrestoring algorithm is significantly faster and smaller than the 32-bit IP Core "Pipelined Divider" from Xilinx. For example, the speed of the 32-bit designed module is almost 245 MHz vs. 193 MHz from Xilinx divider. Moreover, high-speed parameterized modules are designed to provide arbitrary precision of the fixed-point division, for example, with 64-bit or 128-bit operands and large fixedpoint result.

Keywords

• modular design
• programmable logic
• fpga
• high.precision computations
• fixed-point division