Counting elements in data items in a data processing apparatus
US11042375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2017 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | May 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method of operating the apparatus are provided for performing a count operation. Instruction decoder circuitry is responsive to a count instruction specifying an input data item to generate control signals to control the data processing circuitry to perform a count operation. The count operation determines a count value indicative of a number of input elements of a subset of elements in the specified input data item which have a value which matches a reference value in a reference element in a reference data item. A plurality of count operations may be performed to determine a count data item corresponding to the input data item. A register scatter storage instruction, a gather index generation instruction, and respective apparatuses responsive to them, as well as simulator implementations, are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.