The vendor minor code ID reserved for OMG. Minor codes for the standard
exceptions are prefaced by the VMCID assigned to OMG, defined as the
constant OMGVMCID, which, like all VMCIDs, occupies the high order 20 bits.
The vendor minor code ID reserved for OMG. This value is or'd with
the high order 20 bits of the minor code to produce the minor value
in a system exception.