FPGA implementation of high speed 8-bit Vedic multiplier using barrel shifter

摘要

This paper describes the implementation of an 8-bit Vedic multiplier enhanced in terms of propagation delay when compared with conventional multiplier like array multiplier, Braun multiplier, modified booth multiplier and Wallace tree multiplier. In our design we have utilized 8-bit barrel shifter which requires only one clock cycle for ‘n’ number of shifts. The design is implemented and verified using FPGA and ISE Simulator. The core was implemented on Xilinx Spartan-6 family xc6s1x75T-3-fgg676 FPGA. The propagation delay comparison was extracted from the synthesis report and static timing report as well. The design could achieve propagation delay of 6.781ns using barrel shifter in base selection module and multiplier.