RT Journal Article
T1 HUB meets posit: arithmetic units implementation
A1 Murillo Montero, Raúl
A1 Hormigo, Javier
A1 Del Barrio García, Alberto Antonio
A1 Botella Juan, Guillermo
AB The posit (TM) format was introduced in 2017 as an alternative to replacing the widespread IEEE 754. Posit arithmetic 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 1549-7747
YR 2024
FD 2024-01
LK https://hdl.handle.net/20.500.14352/102793
UL https://hdl.handle.net/20.500.14352/102793
LA eng
NO 2023 Acuerdos transformativos CRUE
NO Ministerio de Ciencia e Innovación (España)
NO Agencia Estatal de Investigación
NO Fundación BBVA
NO Comunidad de Madrid
NO Fondo Europeo de Desarrollo Regional (FEDER)
NO Junta de Andalucía
DS Docta Complutense
RD 13 abr 2025