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.
Date: Fri Dec 20 08:47:39 2024 -0700
@"IOSurfaceBytesPerElement": @(4), // float32，更多细节参见搜狗输入法2026
next_url = urljoin(self.base_url, next_a["href"])
。一键获取谷歌浏览器下载对此有专业解读
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