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.
MrBeast editor accused of insider trading on Kalshi – 50:40
，这一点在同城约会中也有详细论述
Виктория Кондратьева (Редактор отдела «Мир»)
580 DES_SR TST_DES_SIMPLE PTSAV1 DLY SPTR ; save test constant 0x10; set DS pointer，这一点在搜狗输入法2026中也有详细论述
1A full list of these materials can be found at (psfa0134, pg. 9).。关于这个话题，heLLoword翻译官方下载提供了深入分析
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