Article View: comp.sys.m68k.pc
Article #218Re: How plug compatible is 68010?
From: Mike Meyer, I'm in love with my ...
Date: Tue, 19 Jul 1988 18:48
Date: Tue, 19 Jul 1988 18:48
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The two are very compatable. The only catch is that "MOVE SR,<ea>" is a privileged instruction on the 68010, where it wasn't on the 68000. Programs that use it on the 68010 will trap where they didn't before. The solution is to insert a shim to catch those traps, do the move for the user-mode program, and then return. Supposedly, there's a Moterola app. note that describes this in detail, including code for that trap handler. I've never seen it, but I may have a code listing somewhere. I've done this. The speedup on my Amiga was between 4 and 5 percent. I don't think it's worth the trouble for that. If you really want to play VM games, then it's wortth the trouble. <mike
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!lll-lcc!ames!pasteur!ucbvax!VIOLET.BERKELEY.EDU!mwm From: mwm@VIOLET.BERKELEY.EDU (Mike Meyer, I'm in love with my car) Newsgroups: comp.sys.m68k.pc Subject: Re: How plug compatible is 68010? Message-ID: <8807191848.AA12874@violet.berkeley.edu> Date: 19 Jul 88 18:48:16 GMT Sender: mwm@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 13 Approved: info-68k@ucbvax.berkeley.edu