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.
// 步骤3：从后往前遍历数组（反向遍历更易理解，每个元素只入栈/出栈一次）。快连下载安装是该领域的重要参考
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从品牌方面来看，在此周期中，DJI 大疆延续强势表现，品牌总销量占比达到 62.9%。据悉，大疆旗下的可穿戴运动相机 Osmo Nano 与全景相机 Osmo 360 分别在各自赛道中斩获了超半数市场份额。