Single cycle instruction pipeline scheduling
US9959122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2013 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Sep 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3889
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes allocating a first single-cycle instruction to a first pipeline that picks single-cycle instructions for execution in program order. The method further includes marking at least one source register of the first single-cycle instruction as ready for execution in the first pipeline in response to all older single-cycle instructions allocated to the first pipeline being ready and eligible to be picked for execution. An apparatus includes a decoder to decode a first single-cycle instruction and to allocate the first single-cycle instruction to a first pipeline. The apparatus further includes a scheduler to pick single-cycle instructions for execution by the first pipeline in program order and to mark at least one source register of the first single-cycle instruction as ready for execution in the first pipeline in response to determining that all older single-cycle instructions allocated to the first pipeline are ready and eligible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.