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I'd say a complex FM chip is something that takes enough time to process a routine for that it starts to become noticeable in your overall cycle-budget. I've heard that in Compile's original Aleste/Power Strike for the SMS, players can choose whether FM tunes are used, as the slowdowns are so sever...

I would say to figure out what your software needs to do, and if it would benefit from extra hardware on the cart, and if there isn't already something that can provide you what you need. Like, the vast overarching majority of the stuff we churn out here as homebrewers is perfectly fine with the dis...

Just as a quick exercise, what would it take to add a second, faster-clocked 6502 on the cart, and what would the benefits be? Well first, the coprocessor will need its own memory to hold its program and variables, and the simplest way to do that would be to connect the WRAM to it. If you do that, t...

I'm kinda late to the party, but here's how I've done actor vs. actor collision detection: Take "A", calculate A's top-left and bottom-right hitbox coordinates, store each X and Y coordinate as A.top, A.bottom, A.left, and A.right. Take "B", do the same thing. If A.left > B.right, exit. If A.right <...

Nice! We should probably add this quirk to the wiki, since we now have a documented case of someone encountering it accidentally.

You're right, that should be a "new revision" MMC3. The code looks OK, so I'm not sure what's happening.

There are two revisions of the MMC3: Old revision = Write #$00 to $C000, IRQ is only once. New revision = Write #$00 to $C000, IRQ is every scanline. It sounds like the real MMC3B chip you're using is an "old revision" chip. Here's the wiki page on it , it also says how to identify which MMC3B chip ...

Attached is an updated Seirei Gari with one missing song and two missing jingles added back in.

(Also, there doesn't seem to be a way to include attachment filenames in a thread search, so I have no idea if this fix has already been done)

Sweet! Happy to have a reference of these.

Try isup.me next time to be sure. It's explained more in depth in the linked thread, but RCWN completely subverts the browser's cache by re-requesting all content, on the off chance that re-receiving it from the server is faster than retrieving it from the cache. Nesdev is likely seeing this as a DO...

Oh snap. Is there any way to get these fixed files into circulation or do we have to just hope someone notices?

Are you using Firefox? Tepples identified an issue with the site and RCWN: http://forums.nesdev.com/viewtopic.php?p=247736#p247736 The short of it is, go to about:config, find (or make) the key network.http.rcwn.enabled and set it to false . This was affecting me too and I can confirm that this fixe...

In the NSF of Heisei Tensai Bakabon currently in circulation, track 3 is missing the triangle channel. Attached is a patched version of the NSF to fix this issue. It looks like there was a mistake, for this track only, the music data does not contain a command to set the patch for the triangle chann...

I think it requires touching a file on the server, no matter what.

Oh snap, I didn't see that there were already two threads on the matter.

Well, here's thread #3 I suppose.