Real-mode programs freely execute CLI and STI to control interrupts, PUSHF and POPF to manipulate flags, INT n for DOS and BIOS calls, and IN/OUT for hardware I/O. In normal protected mode, these instructions are privilege-checked -- they execute normally if the caller has sufficient privilege, and fault otherwise. The 386 can't simply let V86 tasks execute them freely -- a DOS program disabling interrupts would bring down the whole system -- but trapping on every INT 21h call would make V86 impractically slow.
2026-02-27 00:00:00:0徐 之3014252110http://paper.people.com.cn/rmrb/pc/content/202602/27/content_30142521.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/27/content_30142521.html11921 果盘子里话消费（微观）
，这一点在91视频中也有详细论述
class CsvStorage {，详情可参考搜狗输入法2026
"All of those family celebrations, the birthdays and the other events that they thought they were going to be part of - now, suddenly they can perhaps catch up on a bit of lost time."。搜狗输入法2026对此有专业解读