Sciweavers

Share
DAC
1995
ACM

A Method for Finding Good Ashenhurst Decompositions and Its Application to FPGA Synthesis

10 years 6 months ago
A Method for Finding Good Ashenhurst Decompositions and Its Application to FPGA Synthesis
—In this paper, we present an algorithm for finding a good Ashenhurst decomposition of a switching function. Most current methods for performing this type of decomposition are based on the Roth-Karp algorithm. The algorithm presented here is based on finding an optimal cut in a BDD. This algorithm differs from previous decomposition algorithms in that the cut determines the size and composition of the bound set and the free set. Other methods examine all possible bound sets of an arbitrary size. We have applied this method to decomposing functions into sets of -variable functions. This is a required step when implementing a function using a lookup table (LUT) based FPGA. The results compare very favorably to existing implementations of Roth-Karp decomposition methods.
Ted Stanion, Carl Sechen
Added 26 Aug 2010
Updated 26 Aug 2010
Type Conference
Year 1995
Where DAC
Authors Ted Stanion, Carl Sechen
Comments (0)
books