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METHOD TO DETERMINE THE OLDEST INSTRUCTION IN AN INSTRUCTION QUEUE OF A PROCESSOR WITH MULTIPLE INSTRUCTION THREADS
METHOD TO DETERMINE THE OLDEST INSTRUCTION IN AN INSTRUCTION QUEUE OF A PROCESSOR WITH MULTIPLE INSTRUCTION THREADS
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机译:确定具有多个指令线程的处理器的指令队列中最旧指令的方法
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摘要
A method to determine an oldest instruction in an instruction queue of a processor with multiple instruction threads, wherein each of the multiple instruction threads have a unique thread identifier. The method includes tagging each instruction thread, of the multiple instruction threads, in the instruction queue with a unique tag number according to a round-robin scheme, wherein the unique tag number includes the unique thread identifier for each instruction thread and a round number in the round-robin scheme. The method further includes selecting, for each instruction thread, of the multiple instruction threads, the instruction thread with a lowest tag number from the multiple instruction threads in the instruction queue that are tagged with an oldest round number from the round-robin scheme.
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