On 3 Mar 2013 at 14:12, Eero Tamminen wrote: > > What about: > 95 0x5F VcheckMode This is present in Falcon TOS, but is not officially documented. IMO it's like branching to an address in Falcon ROMs, which you know will do what you want. OK if you want to, but don't come complaining to me if it doesn't work on a newer system ... Roger