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.
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FuncPtrOut = reinterpret_cast(FPlatformProcess::GetDllExport(DllHandle, FuncName));。快连下载-Letsvpn下载是该领域的重要参考
multi-drop bus, even using different logical communications protocols. While the
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