per pair, per font"]:::muted
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.
。旺商聊官方下载对此有专业解读
Of course, this was a patch war. According to various Reddit threads and GitHub Issues, fermaw is known for patrolling subreddits and Issues looking for ways in which devs have attempted bypasses in order to patch them.
memory.buffer, messageStartIndex, messageLength);
Each block in the chain has an exact timestamp and can't be changed.