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.
worth reflecting on the 2984's relationship with its host, a close dependency
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to an IBM 3705 Communications Controller running the Network Control Program
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2、DataWorks 产品优势
关于客运服务的具体开通时间，首席执行官目前尚未给出明确日期，但根据此前消息，客运有望在3月底启动。 塞尔维亚方面曾表示，两国首都间最便宜车票价格或为32欧元，而根据匈牙利方面面向国内的政治表态，票价则有可能控制在约25欧元左右，显示出双方在票价预期上的一定差异。，详情可参考同城约会