RT Journal Article
T1 HUB meets posit: arithmetic units implementation
A1 Murillo, Raul
A1 Hormigo-Aguilar, Javier
A1 del Barrio, Alberto A.
A1 Botella, Guillermo
K1 Hardware
AB The posit (TM) format was introduced in 2017 as an alternative to replacing the widespread IEEE 754. Positarithmetic provides reproducible results across platforms and possesses tapered accuracy, among other improvements.Nevertheless, despite the advantages provided by such a format, their functional units are not as competitive as the IEEE 754 ones yet. The HUB approach was presented in 2016 to reduce the hardware cost of floating-point units. In this brief, we present HUB posit, a new format to mitigate the hardware overhead of posit units. Results show that it is possible to reach up to 15% and 12% in terms of area-delay product for adders and multipliers, respectively, while maintaining a similar level of accuracy. In addition, synthesis results show that HUB posit units are able to reach higher frequencies than conventional ones.
PB IEEE
SN 1558-3791
YR 2023
FD 2023
LK https://hdl.handle.net/10630/28879
UL https://hdl.handle.net/10630/28879
LA eng
NO R. Murillo, J. Hormigo, A. A. D. Barrio and G. Botella, "HUB Meets Posit: Arithmetic Units Implementation," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 71, no. 1, pp. 440-444, Jan. 2024, doi: 10.1109/TCSII.2023.3307488.
NO This work was supported in part by MCIN/AEI/10.13039/501100011033 underGrant PID2019-105396RB-I00 and Grant PID2021-123041OB-I00; in partby the “ERDF A way of making Europe”; in part by the 2020 LeonardoGrant for Researchers and Cultural Creators, from BBVA Foundation underGrant PR2003_20/01; in part by the Comunidad de Madrid under GrantS2018/TCS-4423; in part by the Fondo Europeo de Desarrollo Regional underGrant UMA20-FEDERJA-059; and in part by the Andalucía under ProjectP18-FR-3130.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026