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.
refer to reclaimed pages, and n..n×2 are being
，这一点在同城约会中也有详细论述
双方还讨论了乌克兰问题，支持在联合国宪章和原则基础上停火止战、实现持久和平的努力。
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
In this theory of ATM evolution, the missing link that made