This is a case where the abstractions of the C programming language start to break down. 0 is indeed a null pointer constant in C, but the hardware sees 0 as a memory address like any other. Some systems have nothing valid there, but some other systems (like this one) put exception vectors at this location. When certain types of hardware interrupts or exceptions happen, the CPU jumps to certain fixed addresses around address 0 (the specific types of exceptions and the specific addresses are a property of the CPU architecture).
虽然 MWC 现场的展示只是管中窥豹，但透过这些外接配件和视频参数，我们已经能够非常清晰地复盘出 vivo 影像战略的底层逻辑，也证实了我们之前的两个判断：。关于这个话题，WhatsApp 網頁版提供了深入分析
This reporting originally appeared in Fortune.com，更多细节参见https://telegram官网
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