RT Journal Article
T1 Redundant floating-point decimal CORDIC algorithm
A1 Vázquez Álvarez, Álvaro
A1 Villalba Moreno, Julio
A1 Antelo Suárez, Elisardo
A1 López Zapata, Emilio
K1 CORDIC algorithm
K1 Decimal arithmetic
K1 Carry-save arithmetic
AB In this work we propose a new decimal redundant CORDIC algorithm to manage transcendental functions, using floating-point representation. The algorithms determine the direction of the elementary rotation using sign estimations. Unlike binary redundant CORDIC, repetition of iterations are not required to ensure convergence since novel decimal codes have been carefully selected with sufficient redundancy to prevent any repetition. The algorithms are mapped to a low-cost unit based on a decimal 3-2 carry-save adder which can also be used as a floating-point decimal division unit. Compared to current decimal floating-point units, the implementation of our algorithm involves minor modifications of the native hardware, while providing a huge set of elementary functions
PB IEEE
SN 0018-9340
SN 1557-9956
YR 2012
FD 2012-11
LK https://hdl.handle.net/10347/46042
UL https://hdl.handle.net/10347/46042
LA eng
NO Vazquez, A., Villalba-Moreno, J., Antelo, E., Zapata, E. L. (2012). Redundant Floating-Point Decimal CORDIC Algorithm. "IEEE Transactions on Computers", 61(11), 1551-1562
NO This work has been partially supported by the Ministry of Science and Innovation of Spain under projects TIN2007-67537-C03-01, TIN2006-01078, TIN2010-16144 and TIN 2010-17541
DS Minerva
RD 20 may 2026