X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f From: Charles Sandmann Newsgroups: comp.os.msdos.djgpp Subject: Re: Djgpp, allegro and large datafile Date: Tue, 24 Aug 2004 23:37:18 CDT Organization: Rice University, Houston, TX Lines: 14 Message-ID: <412c177e.sandmann@clio.rice.edu> References: <8abf3e27 DOT 0408241251 DOT 15e47f03 AT posting DOT google DOT com> NNTP-Posting-Host: clio.rice.edu X-Trace: joe.rice.edu 1093408986 10061 128.42.105.3 (25 Aug 2004 04:43:06 GMT) X-Complaints-To: abuse AT rice DOT edu NNTP-Posting-Date: Wed, 25 Aug 2004 04:43:06 +0000 (UTC) X-NewsEditor: ED-1.5.9 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com > I was reading in manual somewhere that cwsdpmi's virtual memory > depends on how much DOS memory is avaiable. Is that right? No, the virtual memory is controlled by the free disk space and an internal limit you can change running cwsparam. The amount of DOS memory available will change how many page tables are available - so how much physical memory you can use at one time without faulting the page tables themselves. 1KB DOS memory = 1MB physical. Unless you have over 512MB of physical memory, and plan to use it under DOS this is unlikely to be an issue. If you do plan to use more than 512MB under DOS, the WIP r6 uses 4MB pages to remove these limits.