Subject: Re: [stella] Star Fire 2600: Star Background From: Thomas Jentzsch <tjentzsch@xxxxxx> Date: Thu, 1 Aug 2002 09:16:48 +0200 |
Manuel wrote: > Ok, as promised, here's finally a binary with some star > background, using an adopted technique which I analysed > by studying the code from Earth Dies Screaming. Looks really good. :-) > Unlike my first assumption, flicker can't be totally > avoided, since there's no way to enable the ball during > a repositioning line. Maybe some optimizing in the kernel will help. What are the timing critical paths? Repositioning? Example: you are doing this to set the shape-pointer: LDY sprtsizetype,X LDA shapeptrtab,Y STA tieshapeptr ; Set space object pointer Why don't you do the first part *outside* the kernel? That would require some extra memory, but you are not short of that anyway. That would save you a lot of cycles inside the kernel. Have?fun! Thomas _______________________________________________________ Thomas?Jentzsch?????????|?***?Every?bit?is?sacred?!?*** tjentzsch?at?web?dot?de?| ______________________________________________________________________________ Die clevere Geldreserve: der DiBa-Privatkredit. Funktioniert wie ein Dispo, ist aber viel gunstiger! Alle Infos: http://diba.web.de/?mc=021104 ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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