nesdev.org

Is there any chance that your attitude problem is just related to the fact that your clone is not as good as you thought it was? It's never too late to go for an actual NES you know, there are still plenty of them around. attitude problem? how do you figure? I have a real NES, a mint one in fact, t...

also, whats the deal with the Paperboy glitch where the game boots fine but the controller won't work? Paperboy expects bit 6 to be set when reading the controller state, this is due to open-bus behaviour, effectively ORing the value with $40. one more time, can anyone out there explain this a litt...

come again? are you saying magnetic media is GOOD for long term data archival? no...you can't possibly be saying that. Magnetic media is the sole reason we have the "backup copy" laws we do because magnetic media is prone to degradation over time no matter how you store it (spare maybe so...

You phail at history. The tape player would have been used for crap like storing BASIC programs. then where is the cartridge slot on that prototype? I don't see one. Thats a pretty big assumption to say it would be for BASIC programs, though no doubt it would be implemented for saving some way or a...

Except for long term data archival. come again? are you saying magnetic media is GOOD for long term data archival? no...you can't possibly be saying that. Magnetic media is the sole reason we have the "backup copy" laws we do because magnetic media is prone to degradation over time no mat...

Another interesting (and sort of unrelated) thing I just discovered, as it turns out the Jakks Pacific Namco/Ms. Pacman/Atari Flashback use NOAC with ports of the original games to Nintendo format. It appears the NOAC is one of the most versatile backbones of compact and inexpensive gaming machines...

Oh yes, and another thing, (and some of you may want to brush this off immediately, but give it a chance), I have an emulator for Mac OS X called "RockNES 2.5.0" Does RockNES 5.00 beta 3 for Windows behave differently? dunno, does it play one but not the other? The point I am making (or t...

Oh yes, and another thing, (and some of you may want to brush this off immediately, but give it a chance), I have an emulator for Mac OS X called "RockNES 2.5.0" and it WILL NOT run Castlevania III at all as is reported on the Generation NEX and Yobo FC, I'm sure amongst others. However, A...

Based on the limited time I've had with NOAC based famiclones at a mall kiosk, I didn't notice any problems with the triangle wave ("bass") or noise ("drum") channel. Well, it varies with games, SMB 3 seems to have the most variations (of games I've played). For instance, on the...

it almost looks like the module on the left is actually a tape player, yeah, how cool would that have been, "please press play on your Super Mario Bros. Cassette Tape with shitty magnetic strip that will no longer work in a few years." Cassettes suck. Good thing nintendo went the silicon r...

also, whats the deal with the Paperboy glitch where the game boots fine but the controller won't work? Paperboy expects bit 6 to be set when reading the controller state, this is due to open-bus behaviour, effectively ORing the value with $40. english please, lol, I don't know NES code or processes...

It's not copyright. There are four waveforms in the NES APU's pulse channels , and waveforms this simple cannot be copyrighted. $4000/$4004: pulse waveform selection bits (NES) $00: 1/8 duty cycle (10000000) $40: 1/4 duty cycle (11000000) $80: 1/2 duty cycle (11110000) $C0: 3/4 duty cycle (00111111...

#2 Could some of the incompatability be due to regional differences between the NES and the Famicom? I haven't been able to confirm whether or not the two are identical, so, for instance, does a US copy of Castlevania III work on an authentic Famicom with a 72->60 pin converter? I know this system ...

#1 what exactly is missing that keeps it from working with the 6~10 (depending on who you ask) incompatible titles? Those games are either MMC5 or four screen mirroring. The NOAC does not fetch graphics in the same way, so the MMC5 cannot track it correctly. There may also be voltage problems since...

I am looking for 100% citeable proof one way or another, i.e. someone that disassembled one and took pictures and pointed out a flaw or missing chip etc. or someone that knows the specific workings of it down to the bare circuitry. Generalizations without references are no good to me. Then do you o...