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.
一句话，朴实而温暖，将“人民”置于时代叙事的中心。，更多细节参见旺商聊官方下载
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人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
百胜中国计划在 2026 年将 KPRO 的门店数量翻倍扩展至超过 400 家，重点布局高线城市，进一步挖掘轻食市场的潜力。，详情可参考旺商聊官方下载
Hungary GP — June 7