Who said web development was easy. Suddenly they increase the number of characters on you! (They did, in fact, not increase the number of characters, and you probably should not roll your own email validation code).
Without even having to look at any other modules, we can already spot something: the VM IO-Map contains a function pointer pRCHandler! What does this function pointer do?，详情可参考新收录的资料
，更多细节参见新收录的资料
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The first instruction loads the 64-bit address stored after br x16 into register x16. The second instruction then performs an unconditional jump to that address. Finally, we need to write out the actual address we want to jump to, that ldr loads. Yup, we are writing data (the address), not code there. We can do anything.