INT 67,52 - Get/Set Handle Attributes (LIM EMS 4.0+)

AH = 52h

AL = 00 get handle attributes

01 set handle attributes

02 get attribute capability

BL = new attribute (if AL=1)

DX = EMM handle

on return:

AH = 00 success

= error code (see ~EMS STATUS~)

AL = attribute (input AL=0)

00 handle is volatile

01 handle is nonvolatile

AL = attribute capability (input AL=2)

00 only volatile handles supported

01 both volatile and nonvolatile supported