How does V86 work at the hardware level? When the VM bit (bit 17) of EFLAGS is set, the processor enters a hybrid state: it is still in protected mode with paging and privilege rings active, but most instructions execute as if the processor were in real mode. Segment addresses are computed as selector
There’s a new option in Applications → Defaults to select your default PDF viewer, and we’ve slightly tweaked the icon for Background Activity permissions to be a bit cuter.
，这一点在51吃瓜中也有详细论述
对急需新增长点的长春高新来说，这无疑是根看似完美的 “新稻草”。
Фото: Игорь Иванко / Коммерсантъ