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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.。关于这个话题，heLLoword翻译官方下载提供了深入分析
去年，庞若鸣从苹果离职后加入 Meta，不到一年时间再次跳槽。据多方报道，他在 Meta 的薪酬方案价值超过 2 亿美元，包含多年期激励。，更多细节参见搜狗输入法2026
trigger certain actions in one app based on events in another app.
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