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- Newsgroups: comp.sys.atari.st
- Path: sparky!uunet!gatech!paladin.american.edu!news.univie.ac.at!hp4at!mcsun!sunic!aun.uninett.no!news.uit.no!borgen
- From: borgen@stud.cs.uit.no (Boerge Noest)
- Subject: Re: The compatibility story (Falcon & A1200)
- References: <1993Jan10.171538.26344@news.uit.no> <1993Jan11.104407.29772@email.tuwien.ac.at>
- Sender: news@news.uit.no (USENET News System)
- Organization: University of Tromsoe, Norway
- Date: Mon, 11 Jan 1993 17:47:32 GMT
- Message-ID: <1993Jan11.174732.5360@news.uit.no>
- Lines: 37
-
- In article <1993Jan11.104407.29772@email.tuwien.ac.at> nino@vmars.tuwien.ac.at (Marinos Yannikos) writes:
- >Then again, most games don't use self-modifying code (ok, perhaps some of
- >the games from former demo-coders),
-
- Copy protection is the big sinner here.
-
- > the stack frame isn't particularly
- >interesting for games either (Can't think of any serious reason, this
- >should only give vector-bending software a hard time),
-
- If you change return address in an interrupt you get problems (basically
- doing a sort of multitasking; switching from one part of the code to
- another. I think I have heard SWIV being an example of this).
-
- > and the timing
- >won't be so much of a problem either, because 1. most games run in the
- >VBL (so the speed depends on the display frequency), 2. those which don't
- >won't run THAT much faster, since the Falcon is only 4-5 times faster
- >than the ST in the ST modes... :)
-
- Here I was talking about custom loaders that do something like:
- move.w #3000,d0
- wait dbra d0,wait
-
- when they wait for the floppy to go from track to track or something else
- that needs a delay.
-
- >Well... Actually I don't think the old games are so important - except
- >a few good ones (Dungeon Master ...) there isn't anything that will
- >look or feel particularly good after you've seen some real Falcon games...
-
- If we can throw away the oldest games then the compatability percent jumps up.
- --
- |/// borgen@stud.cs.uit.no (Boerge Noest) | Amiga B2000 \\\|
- |// Box 218, 9001 Tromsoe, Norway | Remember to :-) when needed \\|
- |/ The worlds northernmost university | Life is worth living. \|
- #Disclaimer: This university and me does not agree.
-