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Commit ae61fba0 authored by Josef Utbult's avatar Josef Utbult
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bare4_3

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......@@ -126,7 +126,8 @@ const APP: () = {
// Give an example in the above code, where reordering might make things go horribly wrong
// (hint, accessing a peripheral not being powered...)
//
// ** your answer here **
// If you have a register being accessed before its been setup correctly yet, there would
// be undefined behaviour.
//
// Without the non-reordering property of `write_volatile/read_volatile` could that happen in theory
// (argue from the point of data dependencies).
......
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