rmf5@roy.bellcore.com (Rob Fleischman) (06/07/91)
Does anyone know of a program/cdev/init that protects the portion of memory the on board video uses so that way the graphics on the IIsi go FASTER??? It doesn't seem like it would be too hard for a mac-hacker to write. Please.. Help us IIsi users with lots of memory but slow video. Thanks Robert
ejb@think.com (Erik Bailey) (06/08/91)
In article <1991Jun7.154243@roy.bellcore.com> rmf5@roy.bellcore.com (Rob Fleischman) writes: >Does anyone know of a program/cdev/init that protects the portion >of memory the on board video uses so that way the graphics on the >IIsi go FASTER??? > >It doesn't seem like it would be too hard for a mac-hacker to write. >Please.. Help us IIsi users with lots of memory but slow video. > > Thanks > Robert Have you been following the discussion about the RAM cache? It seems generally accepted that beefing up the cache to 768k results in a definite speed improvement (for me, 256 colors is as fast as 16 used to be, and 16 is as fast as B&W used to be). This was all complicated earlier today with the posting (sorry but I forgot your name!) about how 384k will do the trick nicely, but ONLY with MMInit. Now, we all know that MMInit is evil, and under System 7 it is (apparently) a NO-NO. So... where does this leave us? I'm not sure. But try jacking up the cache to 384, 512, and 768k, and see what happens. I'd recommend AGAINST MMInit, but I may be wrong (The number of "Bus Errors" I experienced under 6.0.7 went WAY down after I got rid of it; I have not tried it under Sys 7). Anyway, that's about all I know. As I write in nearly every message, it would be REALLY nice to hear from Mac.IIsi.Designers@Apple.Com! :-) :-) --Erik -- Erik Bailey | 7 Oak Knoll | Thinking Machines Corp. ejb@think.com | Arlington, MA 02174 | 245 First St. harvard!think!ejb | (617) 643-0732 | Cambridge, MA 02142 /earth is 98% full. Please remove any excess inhabitants.