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.
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
，详情可参考旺商聊官方下载
Cuba says group shot on US-registered speedboat planned 'armed infiltration'，这一点在WPS官方版本下载中也有详细论述
“天元兴”完成数千万元天使轮融资，这一点在51吃瓜中也有详细论述