Title :
A recursive carry-lookahead/carry-select hybrid adder
Author :
Kantabutra, Vitit
Author_Institution :
Dept. of Comput. Sci., State Univ. of New York, Brockport, NY, USA
fDate :
12/1/1993 12:00:00 AM
Abstract :
The author presents a very fast adder for double-precision mantissas, which is an improvement on T. Lynch and E. E. Swartzlandes, Jr.´s spanning tree carry lookahead adder or redundant cell adder (see ibid., vol. 41, 1992) which was implemented using the Am29050 microprocessor. The adder presented is faster than theirs mainly because Manchester carry chains of various lengths are used instead of chains all of the same length
Keywords :
adders; delays; Am29050 microprocessor; Manchester carry chains; double-precision mantissas; recursive carry-lookahead/carry-select hybrid adder; redundant cell adder; spanning tree carry lookahead adder; Adders; Circuit simulation; Clocks; Computational modeling; Computer networks; Inverters; Multiplexing; Timing;
Journal_Title :
Computers, IEEE Transactions on
