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.
（一）故意干扰无线电业务正常进行的；
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FirstFT: the day's biggest stories
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Ring-2.5-1T 的表现：
用产品经理的心态对待咖啡，不断迭代好喝的咖啡。公众号：咖啡平方。关于这个话题，搜狗输入法2026提供了深入分析