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- Path: pn.itnet.it!not-for-mail
- From: "Stefano Agostinelli" <agos001@pn.itnet.it>
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Demo/game to OS friendly part II
- Date: Fri, 26 Jan 1996 19:00:19 +0100
- Organization: ITnet
- Message-ID: <65641199%agos001@pn.itnet.it>
- References: <38232020@kone.fipnet.fi> <9PxXx*kka@aargh.incubus.sub.org> <4des65$bgk@serpens.rhein.de> <38232076@kone.fipnet.fi> <4djpni$t6h@serpens.rhein.de> <0321nas60.alamito@marketgraph.xs4all.nl> <65641184%agos001@pn.itnet.it> <DLqFu9.11J@wiloyee.shnet.org>
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-
- chaos wrote in comp.sys.amiga.programmer about "Re: Demo/game to OS friendly
- part II":
- > : Well actually most of games does run only in a very narrow band of
- > : Amiga machines. The problem is getting worse cause now out there a large
- > : number of somewhat different machines exist: people has 00,20,30,40,60
- > : as cpu
- >
- > this causes only problems to ignorant coders. if you avoid os, then you must
- > keep your caches clean by yourself. therefore after each selfmodifying code
- > you need to flush them, and this needs different code for each cpu. of
- > course, loading and decrunching code IS selfmodifying code.
-
- Try telling to almost every game/demo coder out there.Most of demos designed
- for A500 does not work at all on my A3000!
- Even now a large number of game demo (as given away by british mags) just
- only crash on my machine and if I see that a game demo crash why should I
- risk buying the finished version?
-
- > : ,fast ram
- >
- > this also applies only to ignorant coders. the only possible way to get your
- > ram is either ALlocMem or to scan the memory lists before you kill the os.
- > all other ways will fail. but this has nothing to do with hardware banging.
-
- Again.Hardware banging = will probably break on the machine I did not test
- it on!
-
- > : ,gfx cards
- >
- > if you write os friendly programms, you might get into a lot of trouble
- > since your graphics card might behave unexpected. but if you bang the
- > hardwaer directly, you will not even notice. you just have to hope that
- > your customer has a 15khz monitor...
-
- Behave unexpected?OS shields the programmer from specific hardware issues!
-
- > so where are your compatibility problems? if you know what you are doing,
- > things will be fine with hardware hacking. if you don't, you woun't be able
- > to code a correct os-friendly programm, too.
-
- The point is: most of game/demo coders don't know.
-
- Cheerio
- Stefano
-
- +-----------------------------+-----------------------------------------+
- | Stefano Agostinelli | Now developing for You ARM: |
- | Genoa - Italy | the State of Art AmigaRoleMaster System |
- +-----------------------------+-----------------------------------------+
- | IRC: arm | 'Where are you going, Master?' |
- | E-mail: agos001@pn.itnet.it | 'To the Havens, Sam' |
- +-----------------------------+-----------------------------------------+
-
-