RT Journal Article
T1 Unbiased Rounding for HUB Floating-point Addition
A1 Villalba-Moreno, Julio
A1 Hormigo-Aguilar, Javier
A1 González-Navarro, Sonia
K1 Arquitectura de ordenador
AB Half-Unit-Biased (HUB) is an emerging formatbased on shifting the represented numbers by half Unit in theLast Place. This format simplifies two’s complement and roundto-nearest operations by preventing any carry propagation. Thissaves power consumption, time and area. Taking into accountthat the IEEE floating-point standard uses an unbiased roundingas the default mode, this feature is also desirable for HUBapproaches. In this paper, we study the unbiased rounding forHUB floating-point addition in both as standalone operation andwithin FMA. We show two different alternatives to eliminate thebias when rounding the sum results, either partially or totally.We also present an error analysis and the implementation resultsof the proposed architectures to help the designers to decide whattheir best option are.
YR 2018
FD 2018-06-28
LK https://hdl.handle.net/10630/16058
UL https://hdl.handle.net/10630/16058
LA eng
NO Copyright (c) 2018 IEEE doi:10.1109/TC.2018.2807429
NO TIN2013-42253-P, TIN2016-80920-R, JA2012P12-TIC-1692
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026