Title :
An improved 32-bit carry-lookahead adder with Conditional Carry-Selection
Author :
Ping-Hua Chen ; Juan Zhao ; Guo-bo Xie ; Yi-Jun Li
Author_Institution :
Fac. of Comput., Guangdong Univ. of Technol., Guangzhou, China
Abstract :
An improved 32-bit carry-lookahead adder (CLA) with conditional carry-selection (CSS) is proposed in this paper. The new adder is compared with serial adder and pure carry-lookahead adder. The three adders is simulated in FPGA circuits, the results show that the propagation time of the carry of the new 32-bit adder is reduced 26% compared with Serial Adder and 3.17% with pure Carry-Lookahead Adder.
Keywords :
adders; field programmable gate arrays; 32-bit carry-lookahead adder; FPGA circuits; conditional carry-selection; serial adder; Adders; Cascading style sheets; Circuit simulation; Computational modeling; Computer science; Computer science education; Delay effects; Erbium; Field programmable gate arrays; Logic; CLA; CSS; adder;
Conference_Titel :
Computer Science & Education, 2009. ICCSE '09. 4th International Conference on
Conference_Location :
Nanning
Print_ISBN :
978-1-4244-3520-3
Electronic_ISBN :
978-1-4244-3521-0
DOI :
10.1109/ICCSE.2009.5228242
