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Partitioning prefetch registers to prevent at least in part inconsistent prefetch information from being stored in a prefetch register of a multithreading processor
Partitioning prefetch registers to prevent at least in part inconsistent prefetch information from being stored in a prefetch register of a multithreading processor
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机译:对预取寄存器进行分区,以至少部分防止不一致的预取信息存储在多线程处理器的预取寄存器中
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摘要
A method and multithreaded processor for dynamically reallocating prefetch registers upon the processor switching modes of operation. An execution unit may be coupled to a prefetch engine where the execution unit may be configured to receive prefetch instructions regarding prefetching data. The prefetch engine may comprise a plurality of prefetch registers. The execution unit may further be configured to load the plurality of prefetch registers with information regarding prefetching data obtained from the prefetch instructions. In a single thread mode of operation, the plurality of prefetch registers are allocated to be accessed by either a first or a second thread. In a multithread mode of operation, the plurality of prefetch registers are allocated to be accessed among the first and second threads.
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