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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本文逐一拆解a16z这三份报告的核心判断，以及这些判断背后，钱正在往哪里流。
const buffer = new ArrayBuffer(1024);。同城约会对此有专业解读
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James also hears from Catherine and Jo, who have lived with ME for many years. They describe their diagnostic journeys and how they manage their symptoms in their daily lives.