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The 386 supports four privilege rings (0 through 3), though in practice nearly all operating systems use just two: ring 0 for the kernel and ring 3 for user programs. Three privilege levels interact on every segment access: CPL (Current Privilege Level), DPL (Descriptor Privilege Level), and RPL (Requested Privilege Level).

<start_function_callcall:change_background_color。夫子对此有专业解读

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the more successful of the two brands. The IBM 478x series ATMs, which you might

for await (const chunk of stream) {，详情可参考91视频

--timestamps Show word-level timestamps