Energy Efficient Speed-Independent 64-bit Fused Multiply-Add Unit

Yury Stepchenkov, Yury Rogdestvenski , Yury Diachenko, Dmitry Stepchenkov, Yury Shikunov EnergyEfficient Speed-Independent 64-bit Fused Multiply-Add Unit // 2019 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus) January 28-31, 2019, Moscow, Russia. (indexed in Scopus). DOI: 10.1109/EIConRus.2019.8657207.

The results of a Speed-Independent Fused Multiply-Add (SIFMA) unit pipeline implementation research are presented. SIFMA is compliant with IEEE 754 Standard. A criterion of the SIFMA pipeline’s maximum performance is formulated. A method of reducing hardware costs of SIFMA multiplier by 1.5-2 times depending on its features is offered. The multiplier utilizes a modified Booth algorithm using self-timed redundant code. A new energy efficient self-timed organization of an input and output FIFO was developed. It provides less complexity versus a previous SIFMA implementation on base of semi-dense register.

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