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.
// Even if the readable side's buffer is full, this succeeds
。WPS下载最新地址是该领域的重要参考
Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04
來自中國安徽、兩年多前透過「走線」進入美國，目前生活在路易斯安那州巴吞魯日（Baton Rouge）的陸乾坤說，過去兩年的農曆新年，他都會飛去洛杉磯、拉斯維加斯等其他城市，與朋友見面聚會，並且度過節日。
2026-02-27 00:00:00:0 第六十九号