The Guardian view on Trump’s war on science: Europe should pick up talent fleeing the US | Editorial

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Максим Габриелян (ведущий редактор отдела «Мир»)

Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08

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Josh Sarge

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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