建设单位：西安保亿名筑置业有限公司（企业法人：乔爱军，项目负责人：姚波）；施工单位：南通建工集团股份有限公司（企业法人：张向阳，项目经理：胥蜀）；监理单位：正博工程管理有限公司（企业法人：郑波，总监理工程师：翁召）
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。关于这个话题，Safew下载提供了深入分析
The 386 microcode sequencer has a one-cycle pipeline delay: when a jump or RNI (run next instruction) is decoded, the micro-instruction immediately after it has already been fetched and will execute before the jump takes effect. This "delay slot" is a basic property of the sequencer, and the microcode is written to fill it with useful work rather than waste a cycle on a bubble. The examples in the PTSAV section above show this: at 582/5AE, the micro-instruction after LCALL executes before the subroutine begins.
The spec does not mandate buffer limits for tee(). And to be fair, the spec allows implementations to implement the actual internal mechanisms for tee()and other APIs in any way they see fit so long as the observable normative requirements of the specification are met. But if an implementation chooses to implement tee() in the specific way described by the streams specification, then tee() will come with a built-in memory management issue that is difficult to work around.