- Turkish Journal of Electrical Engineering and Computer Science
- Vol: 24 Issue: 2
- An alternative carry-save arithmetic for new generation field programmable gate arrays
An alternative carry-save arithmetic for new generation field programmable gate arrays
Authors : Uğur Çini, Mustafa Aktan, Avni Morgül
Pages : 435-447
View : 6 | Download : 3
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :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.Keywords : Digital arithmetic, redundant numbers, FPGA, FIR filters