1error: purge-ref.asm(4):
2    Symbol "ref" is referenced and thus cannot be purged
3error: purge-ref.asm(11):
4    Symbol "NotOK" is referenced and thus cannot be purged
5error: purge-ref.asm(15):
6    Symbol "EvenLessOK" is referenced and thus cannot be purged
7error: Assembly aborted (3 errors)!
8