Aw: Re: Aw: Re: Aw: Re: [stella] Hm...

Subject: Aw: Re: Aw: Re: Aw: Re: [stella] Hm...
From: cybergoth@xxxxxxxx
Date: Thu, 8 Apr 2004 18:40:58 +0200 (CEST)
Hi Christopher!

> Maybe I'm missing something here - Why is this a big deal?
> Wait, are you using some variant of the 6-digit display to draw the pieces?
> Okay, that would be a problem...

It's like this (Fixed width font required...):

Line1: P0|  |P0|  |P1|  |P1|  |P1
Line2:   |P0|  |P0|  |P1|  |P1|

On alternating scannlines either 4 or 5 sprites need to be displayed, so worst case (Line1) 3 timed writes are required (2nd P0, 2nd and 3rd P1). To make things worse, each of those 9 pieces can have it's own color...

Wait... can't work this way... I'm not sure, having not analysed "Video Chess" too deeply, but in order to get the color writes done, I assume the layout should rather be middle and not close spacings:

Line1: P0|  |P1|  |P0|  |P1|  |P0
Line2:   |P0|  |P1|  |P0|  |P1|

I'm also not sure about positioning. With Fine Movement you won't get a +-8 range, so it'll be RESP'd every 2nd line as well, or?

Anyway, I'll check out your source and binary tonight :-)


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