The tradeoff is complexity. The microcode must be carefully arranged so that the instructions in delay slots are either useful setup for both paths, or at least harmless if the redirect fires. Not every case is as clean as RETF. When a PLA redirect interrupts an LCALL, the return address is already pushed onto the microcode call stack (yes, the 386 has a microcode call stack) -- the redirected code must account for this stale entry. When multiple protection tests overlap, or when a redirect fires during a delay slot of another jump, the control flow becomes hard to reason about. During the FPGA core implementation, protection delay slot interactions were consistently the most difficult bugs to track down.
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有趣的是，联想还为该平板设计了一款斜挎便携包，能够收纳手写笔以及单侧展示背部扬声器。。业内人士推荐爱思助手下载最新版本作为进阶阅读
The Wuji hand has piezoelectric sensors, which convert pressure into an electrical charge, giving it a sense of touch.
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