Patent · US Active

Underflow/overflow detection prior to normalization

US10846054B2 · kind B2 · utility

0Cited by

8References

9Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Son T. Dao · Stuttgart, DE
Silvia M. Mueller · Altdorf, DE

Key dates

Filing date	Dec 17, 2014
Grant date	Nov 24, 2020
Priority date	—
Expiry date	Jun 23, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG06F7/49915
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Methods and apparatuses for generating a condition code for a floating point number operation prior to normalization. A processor receives an intermediate result for an operation, wherein the intermediate result comprises an intermediate significand and an intermediate exponent. A processor determines a mask based on the value of the intermediate exponent. A processor generates a masked significand by applying the mask to the intermediate significand. A processor generates a condition code based on the masked significand having a predetermined value.

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