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.
pixels exec --
。WPS官方版本下载对此有专业解读
做不做「正确的事」是一种选择，是否选择颠覆也是一种选择。，详情可参考91视频
KAccount::class,
much like checks, losing them wasn't necessarily a big deal, as something