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open_app, quit_app, set_volume, toggle_dark_mode, screenshot, lock_screen，推荐阅读新收录的资料获取更多信息
For those who haven’t peeked under the hood of a System-on-Chip (SoC), the key fact to know is that the cost of modern SoCs is driven largely by peripherals and memory. The CPU itself is often just a small fraction of the area, just a couple percent in the case of the Baochip-1x. Furthermore, all peripherals are “memory mapped”: flashing an LED, for example, entails tickling some specific locations in memory.。业内人士推荐新收录的资料作为进阶阅读
^ See Ripstein, supra note 17, at 200.，详情可参考新收录的资料