Фото: Pierre Albouy / Reuters
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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The recall affects the Ford Maverick (model years 2022–2026), Ford Ranger (MY 2024–2026), Ford Expedition (MY 2022–2026), Ford E-Transit (MY 2026), Ford F-150 (MY 2021–2026), Ford F-250 SD (MY 2022–2026), and the Lincoln Navigator (MY 2022–2026). Just the F-150s alone number 2.3 million.。51吃瓜对此有专业解读
"Things are changing," he says.，详情可参考91视频
1L decoder, d=7, 1h, ff=14