Reorder buffer configured to allocate storage capable of storing results corresponding to a maximum number of concurrently receivable instructions regardless of a number of instructions received

摘要

A reorder buffer is configured into multiple lines of storage, wherein a line of storage includes sufficient storage for instructions results regarding a predefined maximum number of concurrently dispatchable instructions. A line of storage is allocated whenever one or more instructions are dispatched. The line of storage remains allocated until each instruction within the line is ready to retire, and then the line is deallocated as the one or more instructions are concurrently retired.