rust-embedded
Adding a small explanations on hardware exceptions vs software exceptions
In the book there is a paragraph on hardware exceptions: https://docs.rust-embedded.org/book/start/exceptions.html?highlight=exception#the-default-exception-handler This can be a question mark for people used to software exceptions.
What about adding, directly after the first paragraph:
Hardware exceptions are different from exceptions thrown in software, which are a way of handling errors for both recoverable and unrecoverable errors. For recoverable error handling, Rust uses the Result type Result<T, E>, where T is the Ok value type, and E is a specific, configurable error. For unrecoverable software error handling, Rust uses panic that stops execution. This is closer to exceptions thrown in software using other languages.
If you think it can be a useful addition I can make a PR.
