[atari7800] Re: Please help me understand display lists and display list lists
- From: "Eric Ball" <ek-ball@xxxxxxxxxx>
- To: <atari7800@xxxxxxxxxxxxx>
- Date: Thu, 20 Nov 2003 20:54:48 -0500
> all you should have in mind is that for esp. sprites or grafix you should
> store them in RAM in 256 lines order... f.e. if you have a sprite say
32x32
> pixel then you would store that on atari in
> on A7800 you would store them in RAM
>
> 0-31 bytes line 1
> 32-63 bytes line1+256
> etc...
>
> so your data is always aligned to 256 bytes long scanlines...that's all...
Although this works it is not required for static sprites; they can be
stored in ROM. And typically the sprite height is either 8 or 16 lines to
take advantage of holey DMA when scrolling vertically.
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