A floating-point fusion multiplier and adder supporting mixed data types and an application method thereof

A technology of mixed data and data types, applied in the direction of electrical digital data processing, digital data processing components, instruments, etc., can solve the problem that the multiply-add circuit cannot directly process data of different precision, and achieve the effect of maintaining the precision
CN108958705AActive Publication Date: 2018-12-07PHYTIUM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
PHYTIUM TECH CO LTD
Publication Date
2018-12-07

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Abstract

The invention discloses a floating-point fusion multiplier and adder supporting mixed data types and an application method thereof. The floating-point fusion multiplier and adder supporting mixed datatypes includes three floating-point multipliers, an intermediate data integration part and three multi-input adders. The application method comprises classifying mixed data, inputting the mixed datato a corresponding floating-point multiplication unit, outputting an unrounded intermediate multiplication result to an intermediate data integration section, and the intermediate integration sectionshaping the multiplication result and outputting the multiplication result to a floating-point addition unit of a corresponding data type. The invention is designed for processing floating-point multiplication and addition operation of mixed data types, can complete fusion multiplication and addition calculation between different data types, and can keep precision of multiplication result of intermediate process when low-precision multiplication and high-precision addition fusion are carried out.
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Description

technical field

[0001] The invention relates to a functional unit supporting floating-point multiplication and addition in a microprocessor, in particular to a floating-point fusion multiplication-adder supporting mixed data types and an application method thereof. Background technique

[0002] With the continuous development of computer instruction sets, data with multiple precisions needs to be processed comprehensively. However, the existing multiply-add circuits cannot directly process data with different precisions. Contents of the invention

[0003] The technical problem to be solved by the present invention: Aiming at the above-mentioned problems of the prior art, a floating-point fusion multiply-adder supporting mixed data types and its application method are provided. The present invention can complete fusion multiply-add calculations between different data types, And when the low-precision multiplication and high-precision addition are fused, the precision of the...

Claims

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