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Hello, I'm trying to, given a virtual address, quickly check if it exists (if it is mapped) to know if I can access it in a safe way, without generating an exception. I'm currently using the AT instruction to check if a virtual address exists. Is there an alternative or better way to do this?
Thank you in advance
Btw, do you know if it is possible to use AT with MMU disabled?
w/o MMU no virtual address. I never tried the outcome, but I guess it wil indicate a fault (as there is no mapping for any address).