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From: dwl10@uts.amdahl.com (Dave Lowrey)
Newsgroups: comp.sys.amiga
Subject: Fast CPUs
Keywords: 68020 games
Message-ID: <3fhj02nI26Ew01@amdahl.uts.amdahl.com>
Date: 14 May 89 13:41:13 GMT
Organization: Amdahl Corporation, Houston TX
Lines: 25

Help! My CPU is too fast! (Ain't life a bitch?)

This is a note to all game software developers. Please consider the
fact that some Amigas are running on 68010-20-30(?)s. If
you depend on instruction loops for timing, then the games run
much faster on these CPUs.

An example is Space Harrier. I wondered why I did (fairly) well when
I played it in the store, but couldn't get past the first level
when I played it at home on my  Amiga 2500.

A simple boot in 68000 mode solved my problem.

There are some games out there that are not affected by the speed
of the CPU, Crystal Hammer for instance. So, I know that it is
possible to do your timings by a CIA, raster interrupt, or whatever.

So, the next time you are developing a game, please be considerate
of us poor 2500 owners.  :-)

-- 
"What is another word  |  Dave Lowrey    | [The opinions expressed MAY be
 for 'Thesaurus'?"     |  Amdahl Corp.   | those of the author and are not
                       |  Houston, Texas | necessarily those of his
   Steven Wright       |  amdahl!dwl10   | employer]   (`nuff said!)