Search found 4487 matches

by uze6666
Fri Aug 29, 2008 5:06 am
Forum: Hardware
Topic: ATmega644
Replies: 11
Views: 4651

Re: ATmega644

It may come very soon have a look at this topic:

viewtopic.php?f=1&t=19#p119
by uze6666
Fri Aug 29, 2008 4:47 am
Forum: Hardware
Topic: Video DAC suggestion
Replies: 12
Views: 5771

Re: Video DAC suggestion

Oh, one more thing, are you planning a fully assembled board? I think It would be also be *very* appealing to have a PCB only or kit version. For those with the skills, it always feel more likes its yours when you assembled it yourself! And if there is surface mount components, thats good too. It gi...
by uze6666
Fri Aug 29, 2008 4:27 am
Forum: Programming & Software
Topic: New Sprite Engine
Replies: 32
Views: 9224

Re: New Sprite Engine

Btw, it 1284, not 128...the 4 makes all the difference! ;)
by uze6666
Fri Aug 29, 2008 4:20 am
Forum: Hardware
Topic: Video DAC suggestion
Replies: 12
Views: 5771

Re: Video DAC suggestion

You've almost lost me here...I'm an electrical engineer, but I've always worked in software, so I'm rusty :P ! I totally agrees that the PCB layout can make a significant difference on noise and that's why I left that to someone else. The luma trap was indeed left out to minimize part count. I'm a b...
by uze6666
Fri Aug 29, 2008 3:33 am
Forum: Programming & Software
Topic: New Sprite Engine
Replies: 32
Views: 9224

New Sprite Engine

Here's a teaser from the next software rev. The balls and the paddle makes 32 simultaneous sprites. With up to four per scan lines (for the moment). The horizontal resolution is a bit reduced since it now take 10 clocks per pixel instead of 6 with the current tile-only engine. http://belogic.com/uze...
by uze6666
Fri Aug 29, 2008 3:29 am
Forum: Programming & Software
Topic: Python?
Replies: 5
Views: 2226

Re: Python?

To add to what's already been said,one could also program games in C++, since the AVR-GCC package supports it. But it's risky since liked most object oriented and dynamic langages, it make heavy use of the stack. On severely RAM limited system like 8-bit MCUs, its just not worth it IMHO. Even if the...
by uze6666
Fri Aug 29, 2008 3:19 am
Forum: Games & Demos
Topic: Making and selling games
Replies: 34
Views: 11361

Re: Making and selling games

The challenge of squeezing out every last drop of power/performance is part of the fun Right on! Even with ASM acceleration, would this be feasible and speedy? Hehe, trust me, it's feasible :D. Look at the teaser topic I just opened. http://uzebox.org/forums/viewtopic.php?f=1&t=22 Cheers! Uze
by uze6666
Fri Aug 29, 2008 1:37 am
Forum: General Discussions
Topic: Thanks for Licensing under the GPL and CC BY-SA
Replies: 5
Views: 2265

Re: Thanks for Licensing under the GPL and CC BY-SA

Thanks, my pleasure. Thinking of it, two things effectively convinced me. For one, its the fact that it's almost unenforceable. If some knockoffs were made and sold anyway, I have no time and money to sue them! And more importantly, it would would have perhaps prevented the spread of the Uzebox due ...
by uze6666
Fri Aug 29, 2008 1:24 am
Forum: Games & Demos
Topic: Making and selling games
Replies: 34
Views: 11361

Re: Making and selling games

In a near future, I'd like to see ports from various old consoles like NES, Master System, Atari or even PC classic games!! Mario? Sonic? Monkey Island?? Woa, the Uzebox can do neat things, but currently it cannot do sprites and even scrolling! Although with some smart coding on the kernel, I think...
by uze6666
Fri Aug 29, 2008 1:02 am
Forum: Hardware
Topic: Video DAC suggestion
Replies: 12
Views: 5771

Re: Video DAC suggestion

I don't clearly recall why I choose R-2R over weighted resistors. I think it was due to image stability due to varying current in a weighted dac. Also I seemed harder to find non-standard resistors matching bit weights. Did you actually try your solution with an AD725 to generate images? Indeed if i...