Carry-save Adder Based Difference Methods for Multiple Constant Multiplication in High-speed Fir Filters
نویسندگان
چکیده
Multiple constant multiplication (MCM) is the problem of realizing several constant multiplications with one data using as few additions/subtractions as possible. Almost all previously proposed MCM algorithms have been using carry-propagation adders. However, for high-speed applications carry-save adders are a better choice. Although it is possible to map carry-save adders to carry-propagation adders, this mapping is inconsistent in the number of carry-save adders required for a given number of carry-propagation adders for multiplier blocks. In this work a difference-based MCM algorithm for carry-save adders is proposed and evaluated.
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