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.
它讓人們相信：有一天，他們也能打造屬於自己的那座小屋、屬於自己的理想生活。而那正是許多被忽視的群體最需要的：希望。
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成都交警通报，2月27日8时56分许，武侯区西三环路二段外侧辅道发生一起道路交通事故。
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Жители Санкт-Петербурга устроили «крысогон»17:52