The x86 protection model is notoriously complex, with four privilege rings, segmentation, paging, call gates, task switches, and virtual 8086 mode. What's interesting from a hardware perspective is how the 386 manages this complexity on a 275,000-transistor budget. The 386 employs a variety of techniques to implement protection: a dedicated PLA for protection checking, a hardware state machine for page table walks, segment and paging caches, and microcode for everything else.
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The way color works in the terminal is that you echo a sequence like \x1b[38:5:161m to tell the terminal “use color 161 (red) for the foreground.” Then all characters have a foreground color of 161 until you “reset” by sending the sequence \x1b[0m.。WPS下载最新地址是该领域的重要参考
Author(s): Pradeep Kumar Rana, Atharva Vyawahare, Rohit Batra, Satyesh K. Yadav
When is the next Full Moon?The next Full Moon will be on March 3. The last Full Moon was on Feb. 1.