Multi-functional floating-point MAF designs with dot product support |
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Authors: | Mustafa Gö k,Metin Mete Ö zbilen |
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Affiliation: | a Department of Electrical and Electronics Engineering, Cukurova University, Balcal?, Adana 01330, Turkey b Department of Computer Engineering, Mersin University, Çiftlikköy, Mersin 33342, Turkey |
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Abstract: | This paper presents multi-functional double-precision and quadruple-precision floating-point multiply-add fused (FPMAF) designs. The double-precision FPMAF design can execute adouble-precision floating-point multiply-add, or two single-precision floating-point multiplications, or a single-precision floating-point dot product. The quadruple-precision FPMAF can perform similar operations with quadruple, double and single precision operands. These architectures can perform a dot-product operation two times or more faster than a basic FPMAF design. The presented multi-functional designs are compared with basic double-precision and quadruple-precision FPMAF designs by ASIC syntheses. The syntheses results show that the proposed double-precision implementation has 8%more area than a standard double-precision FPMAF implementation, and the proposed quadruple-precision design has 12.5% more area than a standard quadruple-precision FPMAF. Both of the proposed designs have one more pipeline stage compared to the basic designs. |
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Keywords: | Floating-point multiply-add Dot-product Multi-precision |
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