Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!sun!amdcad!brahms!phil From: phil@brahms.amd.com (Phil Ngai) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Question about 1 meg VGA cards Message-ID: <1991Jan15.193833.2784@amd.com> Date: 15 Jan 91 19:38:33 GMT References: <4839@umbc3.UMBC.EDU> <4842@umbc3.UMBC.EDU> Sender: usenet@amd.com (NNTP Posting) Organization: Advanced Micro Devices, Inc; Sunnyvale, CA Lines: 16 In article <4842@umbc3.UMBC.EDU> chuck@umbc5.umbc.edu.UUCP (Chuck Rickard) writes: |Second, I had heard that some programs such as QEMM and DR-DOS were going to |have drivers which would claim unused memory in the video card and map that |into usable space (on a 386, of course). Have you heard anything like this? Yes and no. The amount of video card memory exposed to DOS is limited. The 1 meg on the card is accessed by bank switching. QEMM can give you access to the memory that is directly exposed but doesn't do the bank switching, nor would there be any reason to except as a weird type of EMS. Such memory would be extremely slow in any case. QEMM could do this but doesn't since it's not worth the bother. (Real, fast) memory is cheap and this kind of stuff is a waste of time. -- militia: 1.a. A citizen army, as distinct from a body of professional soldiers. b. The armed citzenry, as distinct from the regular army.