pouët.net

This small demo was originally posted on atari-forum.com to show the use of some advanced synchronisation with the shifter, allowing to do hardscroll with 4 raster lines of cpu.

It only features a vertical scrolling, so it's more interesting code-wise than design-wise.

Although Steem or Saint may not run it, it will work with Hatari 1.3

Nice work from Paulo who pushed the ST limits.

I contacted him in 2007 and he said he was retired!
Pff. Atarians.

The fastest syncscroller ever on the ST, 3 scanlines + syncline ! Are there any sources available?

Technically impressive...

No source available as far as I know but by reading http://www.atari-forum.com/viewtopic.php?f=68&t=9527 coders shold be able to understand how it works (the main part is to be able to create a 0 byte line in 50 Hz, which requires a 2 cycles precision and depends on the "wake up" state of the ST).
Also, I think the .blk file contains all lines length for the 256 possible combinations.

tried it with hatari 1.2 (did not find 1.3) does not compute.

Worked for me with Hatari 1.2 (osx/ppc)....

great, thanx for submitting it.

Pushing the limit, fucking once again. Crazy.
Worked on Steem SSE 3.4.1.

Big thumb, big rulage!

I had fun testing this back when it was made! It was nice to see that a SUCH A sync scroll could be made to work also correctly on STE.

finally found that demo :)

Great technical stuff

Extra effect works in Hatari in STe mode!

Demo runs the only from floppy disc A: - from HDD doesn't load image - demo stops and the info screen.