DESIGN OF FLOATING POINT MULTIPLIER BASED ON BOOTH ALGORITHM USING VHDL

Abstract

In this paper, high Speed, low power and less delay 32-bit IEEE 754 Floating PointSubtractor andMultiplierispresented using Booth Multiplier. Multiplication is an important fundamental function in many Digital Signal Processing (DSP) applications such as Fast Fourier Transform (FFT). Since multiplication dominates the execution time of most DSP algorithms, so there is a need of high speed multiplier. The main objective of this researchis to reduce delay, power and to increase the speed.The coding is done in VHDL, synthesis and simulationhas been done using Xilinx ISE simulator. The modules designed are 24-bit Booth Multiplier for mantissa multiplication in Floating Point Multiplier, 32-bit Floating Point Subtractor and 32-bit Floating Point Multiplier. The Computational delay obtained by Floating Point Subtractor, booth multiplier and floating point multiplier is 16.180nsec, 33.159nsec and 18.623nsec respectively.