JIO_OK ("jump if I/O OK") tests whether CPL ≤ IOPL. The same check gates PUSHF, POPF, INT n, and IRET. The monitor then emulates each instruction as appropriate: maintaining a virtual interrupt flag per V86 task, reflecting software interrupts through the real-mode interrupt vector table, virtualizing I/O accesses, and so on.
Those with the condition share varying views of John Davidson’s tic during Sunday’s awards ceremony
。safew官方版本下载是该领域的重要参考
like teller terminals. NCR offered something like a regular refresh, while IBM
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