A.D.A. Amiga Demoscene Archive

Does anyone consider AROS?

I've got an AmigaOne XE and OS4 - I've always wanted to get into the demo "scene" having had (still have) a small demo group named TeamLEE.
My specialties are music more than anything.
Is anyone out there planning any OS4 demos?

P.S. if anyone wants a demo of an AmigaOne running OS4 in the UK then let me know - if people are umming and awwwing about buying one, it really is not a bad investment (although the price I understand may put some people off)

Rudei, TeamLEE

what's with aros? can we make stuff that runs on that aswell? is it some kind of amiga os port that works on linux or what ? :)

what's with aros? can we make stuff that runs on that aswell? is it some kind of amiga os port that works on linux or what ? :)

AROS is a rewrite of AmigaOS 3.1 for x86. It runs stand-alone.

See http://www.aros.org.

saimo

Copper Operations are done by the Agnus Chip, not by the CPU. And the CPU has not to control Agnus!
All the Copper-Stuff is done with Agnus very own coprocessor commands.
You can change the whole palette at a specified beam position.

Note that not every position is possible, it also depends on the resolution.

First you have to set up a user copperlist
Then you have to wait for a specified beam position
Then you have to put new color values to the custom registers color[n] ($dff180 ff.)
After build up the copper list, you have to turn on the copper.

This works that fast, even on a A500 with 68000 and 512KB RAM you see many colors without blinking.
Agnus works in DMA mode. Since DMA works in odd cycles and CPU in even cycles, they don't affect each others.

(On AGA machines, Agnus is replaced with Alice)

For more infos or a complete demo, you shoud purchase the Developer CD.
There you can see demos in assembler and C, and the whole description in the RKMs

Just want up this old thread, in fact, that today Hyperion release OS4.1 for Pegasos2 boards. It mean that some of amiga sceners who in interest of it, can have 2 moder amiga like oses on 1 computer and enjoy by it. News looks like pretty interesting for all, and i think writing about it here is right idea.

And i'll point out that I still think OS4.x is awesome, 4 years later :-)

And I'll still point out that PPC is not Amiga!! ;)

And I'd second that in a minute!

Sorry for reviving an old thread, but I'm in, and I'm working on a pure PPC/OS4 demo. As an oldschool hardware banger, I want to use as few external libs as possible.

However, lately I've been obsessed with OCS C2P, so don't expect anything from me too soon. hehe..

@skurk
That very nice :) Which libs you already use ? (w3d/minigl ? mpega ?)

@kasie

I haven't released anything for OS4 yet, but what I've been playing with so far is minigl for 3d stuff, and more or less poking the rastport for everything else.

I was hoping for an OS4 demo for Kindergarden 2009, but time is too short.

hello all

if you need real gfx from my art book
for any production just have a look at http://yoursteff.lautre.net and tell me what you think of

regards

yogi of vm