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.
if(p->scavange == (2*n)) {
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但上大學前，她因為上節目評論政治人物遭網路攻擊，讓她上大學後變得保守，不再公開發表意見。「我會害怕，怕我不認識的人湧進我的臉書攻擊我，而我要陷入解釋的混戰裡，很累。」
图为曹家大院西院窗楣砖刻篆字诗句。