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.
OsmAnd's Faster Offline NavigationJune 11, 2025 · 13 min read
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“정원오, 쓰레기 처리업체 후원 받고 357억 수의계약”
// 步骤2：按位置降序排序（离终点越近的车越先处理）