Indeed. This document was daunting when I first got into low-level stuff. ARM has written a much more simple and easy to understand introduction to everything s

Indeed. This document was daunting when I first got into low-level stuff. ARM has written a much more simple and easy to understand introduction to everything since then: https://developer.arm.com/architectures/learn-the-architecture https://developer.arm.com/architectures/learn-the-architectu... This teaches you everything from memory maps to exceptions for low level programming starters.