Copyright © 1997-2026 by www.people.com.cn all rights reserved
TCL 75-inch QM6K Mini LED QLED 4K TV
，更多细节参见旺商聊官方下载
算力市场的格局，正加速滑向惨烈的“军备竞赛”。
Go to technology
Intel documentation describes the 386's Protection Test Unit as a component that "implements fast testing of complex memory protection functions." It is mostly composed of a PLA (Programmable Logic Array), referred to as Test PLA by Intel, that is physically visible by its regular appearance on the die. This single piece of combinational logic replaces what would otherwise be dozens of multi-cycle conditional branches in the microcode. Instead of testing privilege rules sequentially, the microcode issues a single protection test operation, and the PLA evaluates all applicable rules in parallel, producing a complete decision in one evaluation: continue, fault, or redirect to a gate handler.