A centralized protection unit
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。一键获取谷歌浏览器下载是该领域的重要参考
When VM=1, the protected-mode bit goes low and the Entry PLA selects real-mode entry points -- MOV ES, reg takes the one-line path. Meanwhile, CPL is hardwired to 3 whenever VM=1, so the V86 task always runs at the lowest privilege level, under full paging protection. The OS can use paging to virtualize the 8086's 1 MB address space, even simulating A20 address line wraparound by mapping pages to the same physical frames.。业内人士推荐51吃瓜作为进阶阅读
— Anthropic, Core Views on AI Safety: When, Why, What, and How, March 2023，详情可参考搜狗输入法下载