Subject: Re: [stella] Horizontal scrolling demo From: Christian Bogey <khryssun@xxxxxxxx> Date: Fri, 14 May 2004 11:29:38 +0200 (CEST) |
Manuel wrote : > Ah, looks cool. Thanks... a newbie try, I'll do better with more experience ;-) > I assume with assymetrical you mean using the > playfield in reflected mode? > (Just because right now it already is > assymetrical...) Well, in this demo I'm using a symmetrical mode (left and right playfield are the same so I've just to update PF0, PF1 and PF2 once for each scanline) To do an asymmetrical one I'd have to change the PF0, PF1 and PF2 values before drawing them into the right part of the screen...just keeping the symmetrical display mode. > I'd suggest trying a routine using rol/ror, instead > of whatever you're doing now ;-) I'am already using als, ror and rol ;-) I joined the source code for the curious... (before posting my right and left scrolling demos on my web site where I'm trying to give easy codes examples for newbies programmers like me.) Take care, Chris Yahoo! Mail : votre e-mail personnel et gratuit qui vous suit partout ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Dialoguez en direct avec vos amis grâce à Yahoo! Messenger !Téléchargez Yahoo! Messenger sur http://fr.messenger.yahoo.com
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Scrolling Right.asm
Description: Scrolling Right.asm
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