all branches had one. Long-distance computer communication links were very
apps may not be compatible
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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.
However, this flexibility came at a cost for complex routes:
换言之，在他看来，AI 不是能源杀手，而是未来文明的必需品，就像电灯发明时也有人担心蜡烛业失业一样。这个观点不是 Altman 首创。早在 AI 热潮前，就有专家比过生物大脑和硅芯片的效率。但 Altman 作为 OpenAI 老大，说出来影响力大，瞬间成了 X 上的热点，视频有两千多万次浏览，引爆了讨论。