bare4_3

examples/rtic_bare4.rs

@@ -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).