So what the boot ROM does is the RCM message, the 680 bytes will be put here into the global variables.

所以boot ROM做的就是RCM信息，这680字节会被放到这里的全局变量中。

Sorry. So is this, and I don't know what how this links to the function question, but this sounds like it's back to the global variable question.

对不起 我不知道这和函数问题有什么联系 但这听起来像是回到了全局变量的问题。