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