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.
Updates from the match in Colombo; 1.30pm GMT start。关于这个话题，服务器推荐提供了深入分析
。同城约会是该领域的重要参考
The solution to today's Connections #993 is...
会议表决通过了全国人大常委会代表资格审查委员会关于个别代表的代表资格的报告。，推荐阅读safew官方下载获取更多信息
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