Patent · US Active

Residue checking of entire normalizer output of an extended result

US11159183B2 · kind B2 · utility

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0References

9Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Nicol Hofmann · Stuttgart, DE
Michael Klein · Schenefeld, DE
Kerstin Claudia Schelm · Stuttgart, DE
Razvan Peter Figuli · Remchingen, DE

Key dates

Filing date	Jun 26, 2019
Grant date	Oct 26, 2021
Priority date	—
Expiry date	Oct 21, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06F2207/3824
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method includes generating an extended result from a first operation circuitry having a result register bit width greater than a bus width associated with a residue check path of a second operation circuitry associated with a floating point unit. An extended result residue less a first portion residue of the extended result received from the residue check path is stored as a first partial result residue. The first partial result residue is compared with a first result residue of the second operation circuitry. The extended result residue less both the first partial result residue and a second portion residue of the extended result received from the residue check path as a second partial result residue is compared with a second result residue of the second operation circuitry.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.