Method and apparatus for replacing data in an operand latch of a pipeline stage in a processor during a stall

摘要

In one method, a hazard on a register is detected based on the register ID from a latch of a first stage of a processor pipeline. The pipeline is stalled after a stale value of the register is stored in a latch of a later stage of the pipeline. The stale value in the latch is then replaced with a fresh value while the pipeline is stalled.