Apparatus and method for multiplication and accumulation of complex and real packed data elements
US10552154B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for multiplying packed real and imaginary components of complex numbers. A method comprises: multiplying selected imaginary and real data elements in a first and second source registers to generate a plurality of imaginary products; adding a first subset of the plurality of imaginary products to generate a first temporary result and adding a second subset of the plurality of imaginary products to generate a second temporary result; negating the first temporary result to generate a third temporary result and the second temporary result to generate a fourth temporary result; accumulating the third temporary result with first data to generate a first final result and accumulating the fourth temporary result with second data to generate a second final result; and storing the first final result and second final.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.