Segmentation maps a logical address (a 16-bit selector plus a 32-bit offset) to a 32-bit linear address, enforcing privilege and limit checks along the way. Paging then translates that linear address to a physical address, adding a second layer of User/Supervisor and Read/Write protection. The two layers are independent: segmentation is always active in protected mode, while paging is optional (controlled by CR0.PG).
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，更多细节参见51吃瓜
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我国经济已由高速增长阶段转向高质量发展阶段，从“有没有”转向“好不好”。习近平总书记反复告诫，“再也不能简单以国内生产总值增长率来论英雄了”“新发展理念就是指挥棒、红绿灯”……
Фото: Valentyn Ogirenko / Reuters