A* PARMS OPTION(*NOLIST) MBR(*NONE)
     A* External data structure for API error

                R GEDDS99R

                  EXMBPR         9B 0       COLHDG('Byte' 'Prvd')
                  EXMBAV         9B 0       COLHDG('Byte' 'Avbl')
                  EXMSID         7          COLHDG('Excpt' 'Id')
                  EXMRSV         1          COLHDG('Rsrvd')
                  EXMDTA       256          COLHDG('Excpt' 'Data')