nesdev.org

Hi. I'm the creator of this demo. Thanks for the interesting polarized conversation and analysis. The demo is exactly as intended: when my video player just wasn't ready for the Assembly party competitions, I decided to use it as is and found really interesting emergent glitches on the real hardware...

It's working well. There's not much limit to how complex sequence data can be, since it can be processed like in any player, just with the inserted calls to make_sample. The NMI technique also works well, allowing time to be broken into samples, and not having to worry about how many samples some p...

2) you don't back up your registers on NMI Does that mean that I should do an IRQ-style backup of all 6502 registers, pushing them to stack? 3) you enable NMIs during VBlank, without first clearing the VBlank flag (this triggers an immediate NMI) This is probably just some bit toggled when it's not...

Glad you asked, No Carrier! N.O.S.F.E. is a nametable tool to end all nametable tools, specifically developed for NES development. It looks something like this: http://www.cs.uta.fi/~vp79799/demotool.jpg (older version, but it's still pretty much the same). All the nametable content in Kojiki was ge...

But does one have to live in Europe to make a demo? It sure seems that way. Heh, well, it seems to be mainly european thing, really. Maybe it's because all the big "copyparties" and demoparties started in Europe. There are _some_ US sceners too, though. I myself have coded some NTSC stuff...

Hey, back again after a long silence! I've been mostly coding Atari 2600 demos for about a year, but I'm back developing on the NES! New demoscene NES productions of interest: http://pouet.net/prod.php?which=31326 (new demo by me) http://pouet.net/prod.php?which=31539 (not by us, but VERY cool none ...

It looks pretty much the same as that in Nestopia and Nintendulator, so it's probably right.

Yeah, I ran out of time so that particular effect looks pretty lame.

Another quick intro, this time featuring MMC3 and sampled technospeech

http://pouet.net/prod.php?which=26832

Also, and big scroller and some big bitmap mayhem. PAL.

Is it possible to trigger the scanline IRQ multiple times during a frame, or do I just have to use the IRQ as a starting point for timed code?

I'm still working with some scanline effects and I felt this would be the easiest way to do it.

Muchaserres wrote:Yeah, really cool demo! How well does it perform on the real thing?

Everything is pretty much the same on the real console, the cokecan part has some little rasterbugs.

Could you point out the PAL NES <--> best emulators (Nintendulator/Nestopia) differences of this demo?

It's mostly colors and the coke can / rasterbars effect. Somehow they just don't look right to me. The coke can is buggy anyway (I'm still trying to work out what I'm doing wrong).

tepples wrote:Would it be too hard to make an NTSC version?

Somewhat hard, yes. I would have to optimize a lot of the code (because it's not very good) for it'll spill outside vblank if I don't.

My 64k intro for the PAL NES is ready, and can be downloaded from:

http://pouet.net/prod.php?which=26485

It's nothing special, and it's a little buggy too, but at least the music is good

Uses CNROM.

Disch wrote: visy: Could fuzb be using a famiclone rather than a PAL NES? Some famiclones trip an NMI 20 scanlines before VBlank ends rather than 70 in order to make them more compatible with NTSC games.

No, he uses a stock PAL NES.

Moving the DMA upwards the frame fixed it! Thanks for all the suggestions, developement on emulators is really frustrating at times