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.
统一元数据：构建多模态数据资产目录
。WPS下载最新地址是该领域的重要参考
NASA announced at a press conference on Friday that it's delaying its plans for a Moon landing until Artemis IV in 2028. The Artemis III mission, scheduled for 2027, was originally going to attempt to land on the Moon but will now be a test flight instead. NASA also says it's "increasing its cadence of missions," including adding a second test flight in 2027 and aiming for "at least one surface landing every year thereafter," including the Artemis IV landing.
Res Obscura is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber.
В Мозамбике крокодилы за один день напали на двух человек на реке Лугела. Об этом сообщает издание Club of Mozambique.