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.
«Решетнев» рассказал о сборке спутника «Ямал-501»14:53，详情可参考体育直播
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Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04
List every callback in this file, what it does, and what other models or side。体育直播是该领域的重要参考