看过手机银行日志之后，带给我最大的教训，就是一句话：永远不要在老年人的手机上安装手机银行。
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。WPS下载最新地址对此有专业解读
The main rule for data access is max(CPL, RPL) ≤ DPL. For code transfers, the rules get considerably more complex -- conforming segments, call gates, and interrupt gates each have different privilege and state validation logic. If all these checks were done in microcode, each segment load would need a cascade of conditional branches: is it a code or data segment? Is the segment present? Is it conforming? Is the RPL valid? Is the DPL valid? This would greatly bloat the microcode ROM and add cycles to every protected-mode operation.。WPS下载最新地址对此有专业解读
No backwards compatibility