Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!rpi!uupsi!sunic!news.funet.fi!hydra!cc.helsinki.fi!osmoviita From: osmoviita@cc.helsinki.fi Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Caching and VGA (was: Comparing 486 to 386 Systems) Message-ID: <1991Apr18.030753.6037@cc.helsinki.fi> Date: 18 Apr 91 03:07:53 GMT References: <1991Apr6.045408.15395@agate.berkeley.edu> <1991Apr7.170017.23962@news.cs.indiana.edu> <1991Apr7.232941.21382@agate.berkeley.edu> <1991Apr8.154643.784@saturn.uucp> Organization: University of Helsinki Lines: 9 In article <1991Apr8.154643.784@saturn.uucp>, martin@saturn.uucp (Martin J. Schedlbauer) writes: > > Many 486 system allow one to disable caching of memory in the upper address > ranges. This is important for memory-mapped I/O cards such as VGA, etc. > How does VGA (SuperVGA) etc. suffer from caching? Kari Osmoviita osmoviita@cc.helsinki.fi