Search found 175 matches

by pragma
Mon Jul 06, 2009 6:13 pm
Forum: Programming & Software
Topic: New video mode: Bitmapped
Replies: 13
Views: 2902

Re: New video mode!

Although nice, I'm not too impressed with the resolution. FWIW, it would look pretty slick on a handheld device. ;) On my 30+ inch TV, these are no more pixels, more like bricks! [oldcodger]Back in my day, we had pixels the size of our fists and only in one color too. And we liked it that way.[/old...
by pragma
Mon Jul 06, 2009 3:32 pm
Forum: General Discussions
Topic: Another Uzebox Emulator?
Replies: 3
Views: 1278

Re: Another Uzebox Emulator?

Found this. Anybody know more about it? Interestingly it shows Uzeamp & the movie player, so it had also SD emulation. It looks like some kind of MAME with quite a few module he plugs together. It's probably not near what David & Pragma implemented as far as development features, but it's Interesti...
by pragma
Mon Jul 06, 2009 3:25 pm
Forum: Programming & Software
Topic: New video mode: Bitmapped
Replies: 13
Views: 2902

Re: New video mode!

Although it's a bitmap mode, with more memory for a double buffer, I think the applications will be limited. A monochrome version could have two pages though. Wow. Nice work Uze! Was the decision to go to a straight-up bitmapped mode done to accelerate the rasterizer? Is there any overhead left to ...
by pragma
Mon Jul 06, 2009 3:12 pm
Forum: Uzebox Emulator
Topic: Emulator performance on GNU/Linux
Replies: 19
Views: 5482

Re: Emulator performance on GNU/Linux

Thanks, for taking a look at this. I'm not even ready to tackle Linux/Mac porting just yet, but at least I have the hardware lined up for the job! ;) Actually I'm not sure... it seems to help but doesn't fix it entirely. How is the avr being clocked? I can see it tries to do 100,000,000 cycles but I...
by pragma
Thu Jul 02, 2009 4:58 pm
Forum: Games & Demos
Topic: New Game: Zombienator!
Replies: 53
Views: 12511

Re: New Game: Zombienator!

Ahhhhh. Finally ported it to kernel beta 3. Sprite flickering works now too. Anything I should know before I start hacking away at the EEPROM-functions? I've already reserved a slot on the wiki. :? I hope that's alright. I say: Hack away. Just be aware that the current revision of the emulator out ...
by pragma
Wed Jul 01, 2009 4:23 pm
Forum: Games & Demos
Topic: Sonic The Hedgehog 16-bit on Uzebox
Replies: 67
Views: 24689

Re: Sonic The Hedgehog 16-bit on Uzebox

Anyway, now that I have a buffer and tonnes more clock cycles, I was going to be really wasteful an run the rendering in 3 stages. First render the far background layer really fast using 4x8 tiles stretched to 8x8, then the forground layer with transparency (and also write to the sprite-masking buf...
by pragma
Sun Jun 28, 2009 10:41 pm
Forum: Off Topic
Topic: Cunning Hack: AVR Tiny as an RFID tag.
Replies: 1
Views: 1089

Cunning Hack: AVR Tiny as an RFID tag.

I saw this on hackaday.com today. Just when you think you've seen what these little AVR chips can do, another surprise shows up. Last time, I posted an ultra-simple "from scratch" RFID reader, which uses no application-specific components: just a Propeller microcontroller and a few passive component...
by pragma
Fri Jun 26, 2009 12:23 am
Forum: Games & Demos
Topic: Sonic The Hedgehog 16-bit on Uzebox
Replies: 67
Views: 24689

Re: Sonic The Hedgehog 16-bit on Uzebox

One thing I did notice, I have 3 16-bit pointers: X,Y and Z... If I'm reading from a buffer using one, writing to one using another, and then using one for reading from vram, what do I use to then read the tile data... are these XYZ registers just names, could I do the following: "ld r16, r24+" and...
by pragma
Thu Jun 25, 2009 11:14 pm
Forum: Games & Demos
Topic: Sonic The Hedgehog 16-bit on Uzebox
Replies: 67
Views: 24689

Re: Sonic The Hedgehog 16-bit on Uzebox

The downside to all of this is that the resolution is much much lower - but I don't care cause it's all relative to the sprite and If it plays okay I don't think you'd ever notice :-p Look at it this way: the original gameboy had a resolution of 160x124. The Uzebox has access to 256 colors on top o...
by pragma
Fri Jun 19, 2009 12:43 am
Forum: Programming & Software
Topic: Making a basic video signal
Replies: 8
Views: 2073

Re: Making a basic video signal

I'm trying out assembly language while reading assembly language (probably the best way I'll learn it anyway), and I have a question. Is it possible to load into a register a immediate value that is the high byte of an address? My code currently looks like this and it probably wont do anything usef...