发明申请
US20070186080A1 Mechanism to minimize unscheduled D-cache miss pipeline stalls 有权
最小化非计划D缓存未命中管道失速的机制

Mechanism to minimize unscheduled D-cache miss pipeline stalls
摘要:
A method and apparatus for minimizing unscheduled D-cache miss pipeline stalls is provided. In one embodiment, execution of an instruction in a processor is scheduled. The processor may have at least one cascaded delayed execution pipeline unit having two or more execution pipelines that execute instructions in a common issue group in a delayed manner relative to each other. The method includes receiving an issue group of instructions, determining if a first instruction in the issue group is a load instruction, and if so, scheduling the first instruction to be executed in a pipeline in which execution is not delayed with respect to another pipeline in the cascaded delayed execution pipeline unit.
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