Ian YoungsCulture reporter
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More top storiesHow forensics uncovered the murder behind bones found at a beauty spot。下载安装汽水音乐对此有专业解读
Now that we know how to make a self-updating progress bar using Ansi escape codes to control the terminal, it becomes relatively easy to modify it to be fancier, e.g. having a ASCII bar that goes across the screen:。同城约会对此有专业解读
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.