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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2026-02-28 00:00:00:0杨林旭3014268810http://paper.people.com.cn/rmrb/pc/content/202602/28/content_30142688.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/28/content_30142688.html11921 考古新成果阐释中华文明突出特性（考古中国）
此外，姚雄杰身边始终聚集着一批投行精英。有着长城证券、西南证券等背景的人才相继被招致麾下，为盛屯系的资本运作保驾护航。借助这些专业人士的力量，姚雄杰从早年那个“草莽英雄”蜕变为长袖善舞的“资本大玩家”。