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This paper presents a multiplier that operates on binary integer decimal (BID) encoded decimal floating-point (DFP) numbers. It uses a single binary multiplier with carry-save feedback for both significand multiplication and rounding, and it is compliant with the IEEE 754-2008 Standard. Optimizations decrease the BID multiplier's area and critical path delay.
In this paper, we describe the first hardware design of a combined binary and decimal floating-point multiplier, based on specifications in the IEEE 754-2008 floating-point standard. The multiplier design operates on either (1) 64-bit binary encoded decimal floating-point (DFP) numbers or (2) 64-bit binary floating-point (BFP) numbers. It returns properly rounded results for the rounding modes specified...
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