Article View: comp.sys.intel
Article #1299Request for OverDrive technical details
From: Ron Harding
Date: Thu, 19 Nov 1992 18:33
Date: Thu, 19 Nov 1992 18:33
20 lines
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1467 bytes
A co-worker has informed me that there was some discussion here a while ago about the OverDrive chip. As I understand it, an OverDrive is really a fully functional CPU which just shuts off the original CPU, but requires that the original be left in place. I'm particularly interested in a description of how an OverDrive chip knows that the original is in place. Is it just a matter of a couple pins shorted, or is there some complex handshake between the two chips? If anyone remembers the gist of that thread, I'd appreciate hearing about it. ============================================================================= From a local computer call-in show: | Ron Harding Q: I hear all this talk about base | rbharding@descartes.uwaterloo.ca memory, expanded memory, and +------------------------------------ extended memory. What is the difference, and why don't I have them on my Amiga? A: Well, the Amiga doesn't offer you that kind of flexibility... =============================================================================
Technical Details
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Newsgroups: comp.sys.intel Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!torn!watserv2.uwaterloo.ca!watmath!undergrad.math.waterloo.edu!rbhardin From: rbhardin@undergrad.math.waterloo.edu (Ron Harding) Subject: Request for OverDrive technical details Message-ID: <Bxz7Jo.Ip6@undergrad.math.waterloo.edu> Organization: University of Waterloo Date: Thu, 19 Nov 1992 18:33:23 GMT Lines: 20