pouët.net

Nothing special, but after watching the CrestDemo on BP2010 I just wanted to try something native. You need a REU with atleast 256 Byte of RAM ;)

nice split! ;)

hehe :)
thanx for doing it before solo2 could !

I can't get this to run in vice.

Nice effect! ...using $d418 instead of $d020 could be interesting.

@Knoeki, runs here without problems. IO-Extensions --> Ram Expansion Unit --> Enable REU --> Size doesn't matter ;-)

Nice colours.

Technical description of what is going on and why it requires an REU, please ;-)

Nice, more ppl playing with the REU :)

nice 2 see 256 bytes on c64...
I think last byte must be $40... commodore $40 ,)

@xeron. You can give the REU a memorylocation where to write his own content into. This could be used to copy memoryranges from or to the REU. As the REU uses DMA it can copy 1 byte per cycle. Futhermore you can copy a memoryrange from the REU into *one* address on the c64, only (or vice versa). That means you can write f.e. 4000 bytes of data into $d020 (BackgroundColor) in 4000 cycles. So you can alter the color ca. 4-6 times faster as the CPU could (inc $d020 needs 6 cycles, STA needs 4). My effect alters the backgroundcolor each 8 pixels in x (rasterbeam goes 8px/cycle).

More Infos can be found in the source, included in the package. 8)

Oh. Thats nifty. That sounds like the kind of thing a very clever person could abuse to push the limits of the 64 further.

Sadly this pushes the whole thing into the wildcompo but the possibilies are of course awesome.

neat!

Whats next? Unlimited sprites?

@Exin. Maybe ;) nice idea... we could alter $d000, $d002, $d004 etc... a few times per line. Sadly, every crazy effect just leads away from competing in a stock C64-compo ;/ But lets see... so much ideas, so little time.