| 摘要 |
The present invention provides system and method for a group priority issue schema for a cascaded pipeline. The system includes a cascaded delayed execution pipeline unit having a plurality of execution pipelines that execute instructions in a common issue group in a delayed manner relative to each other. The system further includes circuitry configured to: receive an issue group of instructions; determine if at least one load instruction is in the issue group, if so scheduling the least one load instruction in a one of the plurality of execution pipelines based upon a first prioritization scheme; determine if there is an issue conflict for one of the plurality of execution pipelines and resolving the issue conflict by determining which load involved in the issue conflict has the closest dependency, and schedule any load involved in the issue conflict not having the closest dependency in a delayed execution pipeline. |
