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From: ruzun@pro-sol.cts.com (Roger Uzun)
Newsgroups: comp.sys.apple
Subject: Re: 68000 vs. 65816
Message-ID: <16728.apple.net@pro-sol>
Date: 14 Feb 90 04:22:52 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 18

In-Reply-To: message from jm7e+@andrew.cmu.edu

>> lets have some real hardware gurus settle this.
I have worked with the 65816 for about 3.5 years now, written
a few commercially published applications for the //gs, including
2 sound editors for MDIdeas, and many sound/graphics utilties for them.  I
have also written a lot of commercial Mac and Amiga software.  I have spent
countless hours hand coding assembly routines for the 65816 and 680X0
processors, in the case of the 68000 on a variety of platforms.  
Please recall that the 680x0 has a highly orthogonal instruction set, and
many general purpose registers as well as a much more powerful set of
addressing modes.  While for some applications a similar clocked 65816 can
perform at a slightly faster rate than the 68000, for 99% of the applications
that I have coded, the 680X0 wins hands down.  When I say that a 20 Mhz
65816 would perform at 1/3rd the throughput of a 20 Mhz 68030, I am being
very conservative in the 65816's favor.  I invite anyone with a C compiler
to try some benchmarks I have, and see if this is not true.
-Roger