# Exceptions
-> What does an ADD of two different-sized vectors do in simple-V?
-
-* if the two source operands are not the same, throw an exception.
-* if the destination operand is also a vector, and the source is longer
- than the destination, throw an exception.
-
> And what about instructions like JALR?
-> What does jumping to a vector do?
-* Throw an exception. Whether that actually results in spawning threads
- as part of the trap-handling remains to be seen.
+answer: they're not vectorised, so not a problem
# Hints