2025 Apple ][ Easter Demo

Details

Another demo featuring Snickers the guinea pig.

Video

Recorded on Applewin, didn't have the chance to fire up the actual Apple IIe:

System Requirements

Apple IIe, Maybe IIgs or IIc
You need 128k of RAM and a Mockingboard
It is known to work under AppleWin and MAME

Downloads

Apple II Code/Disk Images

Disk image: easter2025.dsk v1.0 (19 April 2025, 140k)
Full 6502 assembly code available in the git repository. You'll need cc65 to build it.
https://github.com/deater/dos33fsprogs/graphics/dhgr/easter_scroll

Credits

Code: Deater
Guinea Pig Graphic: GuineaGirl2424 (converted with IIpix)
Fast disk code: qkumba
Music: Spring (2001) by Ivan Roschin

Run it in Your Browser

Try it out at the internet archive here: Easter 2025

Development Notes

V1.0 notes -- 19 April 2025

Wasn't planning on doing this (extremely busy time of year, end of semester) but guineagirl2424 had some nice graphics and I had some mostly existing scroll code that I fixed up a bit.

Vertical scroll is slow on Apple II as there is no hardware support. You have to do it all in software. In double hi-res mode here you have to copy 16k each frame. I've unrolled things 192 times but it still isn't as smooth as I'd like.

Other VMW Software Demos

Other Apple2 Projects

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