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.
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。关于这个话题，heLLoword翻译官方下载提供了深入分析
影像方面，S26 Ultra 维持了 2 亿像素主摄、5000 万超广角、1000 万 3 倍加上 5000 万 5 倍长焦的组合。表面上看参数没变，但从爱范儿现场的上手观察，S26 Ultra 的长焦端，光孔变成了圆形，具体表现可以等待我们进一步实测。
Truly invisible (rarely even mentioned)。旺商聊官方下载对此有专业解读