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.
But 82 pairs are pixel-identical
。关于这个话题，谷歌浏览器【最新下载地址】提供了深入分析
卖得最好的仍是山姆和胖东来。南方周末记者贾梦雅｜摄，详情可参考Line官方版本下载
2026-02-28 00:00:00:0 国务院关税税则委员会：