System and method of reissue parking for a microprocessor
US9823933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jul 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3836
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A reissue instruction parking system for a microprocessor including a reservation stations module that dispatches instructions for execution and a reorder buffer that reissues instructions to the reservation stations module during a reissue state, in which the reissue instruction parking system includes at least one first pipeline stage and at least one second pipeline stage, in which the first pipeline stages provide a first reissue instruction from a reissue data path to the reservation stations module during the reissue state and that parks the first reissue instruction once the reservation stations module is determined to be full, and in which the second pipeline stages select a pointer to the reorder buffer which provides a corresponding first reissue instruction onto the reissue data path, in which the second pipeline stages are placed into a hold state when a second full signal is asserted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.