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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.
。雷电模拟器官方版本下载对此有专业解读
Exclusive: Home affairs department intervened about the use of non-modified people movers after 500 detention centre staff flagged safety concerns
这类并购之所以相对成功，在于潍柴背后有完整的发动机与动力系统产业链支撑，而不是单纯的财务投资冲动。
时间回到2004年2月，主政一方的习近平同志参加中央党校省部级主要领导干部专题研究班。