Xref: utzoo comp.sys.ibm.pc.programmer:2636 comp.os.msdos.programmer:4556 Newsgroups: comp.sys.ibm.pc.programmer,comp.os.msdos.programmer Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!caen!umich!sharkey!bnlux1.bnl.gov!kushmer From: kushmer@bnlux1.bnl.gov (christopher kushmerick) Subject: Int 15h function 88 Message-ID: <1991Apr10.215111.12959@bnlux1.bnl.gov> Organization: Brookhaven National Laboratory Distribution: na Date: Wed, 10 Apr 1991 21:51:11 GMT My AT has 2.5 mbytes of extended memory starting just above the one megabyte position, and 0.5 megabytes at $A00000. The letter is for a frame grabber. When I do int 15 function 88 (count extended memory), only the 2.5 mbytes seems to get counted. Does this mean absoultly that I will not be able to use int 15 function 87 to read and write that other 0.5 Mb at $A00000? -Chris -- Chris Kushmerick kciremhsuK sirhC kushmer@bnlux1.bnl.gov <===Try this one first kushmerick@pofvax.sunysb.edu