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.
"So we narrowed it down to [this] one address… and started the process of confirming who was living there through state records, driver's licence… information on schools," says Squire.。同城约会是该领域的重要参考
drop-oldest: Drops the oldest buffered data to make room. Useful for live feeds where stale data loses value.。Line官方版本下载是该领域的重要参考
a browser extension and a desktop app，这一点在safew官方版本下载中也有详细论述