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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。业内人士推荐51吃瓜作为进阶阅读
Екатерина Улитина (Редактор отдела «Забота о себе»)
Electronics appliance maker Dyson has agreed to settle a lawsuit filed against it by 24 migrant workers, who alleged they were subjected to forced and abusive treatment in a Malaysian factory making the firm's parts.
与早年资本更多聚焦游艇会、码头运营或海外品牌并购不同，此次他的布局更强调制造能力重塑与全链条供应链整合。