A.D.A. Amiga Demoscene Archive

Hi.. for fun I have started coding for amiga again..

I had an old project that never finished, that I wanted too tinker with.

so for purly fun I have been playing around with Bartman's exellence VSCode plugin.

this old project had the graphics in Screen size 368x283..

Back in the old days I never figured out how to open this screen size with FMODE=3..

I have aligned Bitplanes to 64bit. So bitplane width becomes 384x283. with using mod -8.

My currect copper settings uses this

[ Screen1 ] Mem: 0000A41C | Adr: 0000A440 | Size: 109120
[ DDFSTRT ] 092: 0028
[ DDFSTOP ] 094: 00D8
[ DIWSTRT ] 08E: 1F61
[ DIWSTOP ] 090: 3AD1

I'm not really sure whats wrong here.. but there are clearly a problem. The graphics repeat at the left side and the right side is being cut off.

Any sugestions are more than welcome




Note: Yes I know the palette is wrong.

you have to make sure the "horizontal datafetch" and mod are set so the bitmap will restart with a multiple of eight at *each lines*. Plus, On UAE it does repeating, but on real hardware it crashes the machine very hard.

... some years ago I did a 320x AGA copperlist with horizontal scroll and FMOD=$33, so no overscan but I had to consider 48 bytes per plane/line.

Thanks you.

I have now something too focus on.. I have been looking at Hardware setup, if I missed some bits.

For our demo "The ventures of Prince Dakkar and his pilgrimage to the abyss" we used overscan 384x170, C2P skipped only visible pixels.


This is the copper settings we used:


Hope it helps!

Ohh that is good timing ..

I had it working in winuae but on real hardware I found out the Screen was off center ..

so i'll give your values a test .. thanks.