2026-06-03T14:36:28Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/160582026-02-03T11:12:36Zcom_10630_2254col_10630_37953

Unbiased Rounding for HUB Floating-point Addition Villalba-Moreno, Julio Hormigo-Aguilar, Javier González-Navarro, Sonia Arquitectura de ordenador Copyright (c) 2018 IEEE doi:10.1109/TC.2018.2807429 Half-Unit-Biased (HUB) is an emerging format based on shifting the represented numbers by half Unit in the Last Place. This format simplifies two’s complement and roundto- nearest operations by preventing any carry propagation. This saves power consumption, time and area. Taking into account that the IEEE floating-point standard uses an unbiased rounding as the default mode, this feature is also desirable for HUB approaches. In this paper, we study the unbiased rounding for HUB floating-point addition in both as standalone operation and within FMA. We show two different alternatives to eliminate the bias when rounding the sum results, either partially or totally. We also present an error analysis and the implementation results of the proposed architectures to help the designers to decide what their best option are. 2018-06-28T11:13:31Z 2018-06-28T11:13:31Z 2018 2018-06-28 journal article https://hdl.handle.net/10630/16058 eng open access