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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，更多细节参见搜狗输入法2026
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However, the pricing creates barriers for smaller website owners, bloggers, and businesses just beginning to explore AIO. Spending $100-300 monthly on tracking tools makes sense when you're generating significant revenue from AI traffic, but it's prohibitive when you're still validating whether AIO is worth your investment. This gap between professional tools and budget-conscious creators leaves many people flying blind with no way to measure their AIO performance.