An Alternative Carry-Save Arithmetic For New Generation Field Programmable Gate Arrays
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CitationÇİNİ, Uğur, Mustafa AKTAN, & Avni MORGÜL. "An Alternative Carry-Save Arithmetic For New Generation Field Programmable Gate Arrays." Turkish Journal of Electrical Engineering and Computer Sciences, 24.2 (2016): 435-447.
In this work, a double carry-save addition operation is proposed, which is efficiently synthesized for 6-input LUT-based field programmable gate arrays (FPGAs). The proposed arithmetic operation is based on redundant number representation and provides carry propagation-free addition. Using the proposed arithmetic operation, a compact and fast multiply and accumulate unit is designed. To our knowledge, the proposed design provides the fastest multiply-add operation for 6-input LUT-based FPGA systems. A finite impulse response filter implementation is given to show the performance of the proposed structure. The proposed implementation provides a dramatic performance increase, which is at least 2 times faster than conventional binary multiply-add implementations.