Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!ohstpy!miavx1!dastrout
From: dastrout@miavx1.acs.muohio.edu (root@next1)
Newsgroups: comp.sys.m68k
Subject: Re: diff 68000 68010
Message-ID: <4900.280d4d72@miavx1.acs.muohio.edu>
Date: 18 Apr 91 12:40:34 GMT
References: <26440@hydra.gatech.EDU> <1991Apr17.114247.6446@cs.umu.se>
Lines: 21

In article <1991Apr17.114247.6446@cs.umu.se>, dvljrt@cs.umu.se (Joakim Rosqvist) writes:
> Is there any use replacing 68000 with 68010? 
> I've seen figures like 5-10% speed increase, but that would be on average.
> I know mul and div is faster, but how much? What other instructions are
> sped up? Shift, Bcc ? 

Don't know about faster, but I asked a similar question a while ago about 
replacing a 68K with a 68010 on an already running box, and got the answer 
--Don't.  Reason is that the '010 puts different stuff on the stack after 
an exception, so as to support VM, and 68000 code will break.  Thus, for my 
system, unless I want to re-write the kernel, leave it a 68000.  If this is 
a new design, however, go for the 68010.

-- 
Dave Strout
->One needs only calculate to the nearest power of 10, except in salary 
discussions, where factors of 2 become important. <-
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