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Method and apparatus for avoiding data dependency hazards in a microprocessor pipeline architecture using a multi-bit age vector
Method and apparatus for avoiding data dependency hazards in a microprocessor pipeline architecture using a multi-bit age vector
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机译:使用多位年龄向量来避免微处理器流水线体系结构中的数据依赖性危害的方法和装置
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摘要
A method and system for avoiding various hazards for instructions which are propagating through a microprocessor pipeline. When a plurality of instructions exist within the pipeline which read and write the same value, a vector is established to distinguish the older from the newer instructions. Further, before instructions are dispatched for execution, pointers are generated which identify the particular instruction which had the operand or parameter value needed. Accordingly, by monitoring both the recent vector and pointers, dated dependency hazards can be avoided.
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