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.
The breakfasts I was able to identify cluster into three major regions:，详情可参考safew官方下载
Article InformationAuthor, 本·哈頓（Ben Hatton），推荐阅读WPS下载最新地址获取更多信息
// Create a view into the consumer's buffer and fill it。快连下载安装对此有专业解读
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