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).
Author mclasenPosted on February 25, 2026February 25, 2026Categories Uncategorized
，详情可参考搜狗输入法2026
Terminal applications have a “cursor” that they can move around, just like a text editor. You can tell that cursor “go to line 3, delete everything, then print out this new text” by using VT100 sequences. And you can use it to replace existing characters with new ones, without re-emitting a whole line.
Developers should have the right to create and distribute software without submitting to unnecessary surveillance or scrutiny.
这个北方的小县城，拥有更多的“进步”，有人离开，有人回来，人与人之间不如往日般亲密，但它的骨架依然没变。白天路过我上学时的幼儿园，还是那个幼儿园，小学还是那个小学。卖饼夹菜的老板，店面换了，但人还在，味道还在。一家超好吃的麻辣烫，开了几十年，妈妈跟我一样大时就在他们家吃。县城最大的超市，小时候就在那，今年过年依旧人山人海。它们都在变得越来越好，且依然在那里。