Search found 1321 matches

by Pokun
Sun Feb 23, 2020 8:46 am
Forum: General Stuff
Topic: Where to find pdf scans of Famicom games?
Replies: 13
Views: 3762

Re: Where to find pdf scans of Famicom games?

Yeah looks like they basically remade the manuals into HTML documents. Although they won't replace scanned manuals I guess they are nice for finding information. Plus since it's typed out, it's easy to copy paste or to process with Babelfish-style translators.
by Pokun
Mon Feb 10, 2020 3:28 am
Forum: Other Retro Dev
Topic: 3DS reverse engineering
Replies: 195
Views: 103914

Re: 3DS reverse engineering

Sorry. I should have said language barrier in general. I somewhat got the console donated as "the gui supports japanese only but you can take apart the mainboard for hacking if you want to have it". The region lock is also part of the reason why I've never had any gaming experience on that console,...
by Pokun
Mon Feb 10, 2020 2:49 am
Forum: NESdev
Topic: CTRLTEST generic input test ROMs
Replies: 4
Views: 495

Re: CTRLTEST generic input test ROMs

I have been thinking of making something to easily test raw inputs, but I didn't know everyone had done it so many times already.
I like all three solutions!
by Pokun
Fri Feb 07, 2020 10:32 am
Forum: Other Retro Dev
Topic: 3DS reverse engineering
Replies: 195
Views: 103914

Re: 3DS reverse engineering

What? I've been using a Japanese 3DS LL all this time. Decided on it ever since I heard it was going to be region locked, no way I'm missing out on Japanese games because of some region lockout.
by Pokun
Thu Feb 06, 2020 3:47 am
Forum: NESdev
Topic: FMV on NES (dream I had)
Replies: 16
Views: 1470

Re: FMV on NES (dream I had)

I fully agree. Although I think it's neat to see it as a proof of concept, it's not much more than that unless it has some practical purpose. The fact that the PPU can be fed directly from the cartridge IS a feature of the NES, and I'm not against abusing it. Bank switching CHR-ROM for cheap animati...
by Pokun
Tue Feb 04, 2020 1:38 pm
Forum: Other Retro Dev
Topic: Why was the GBA sound so poor?
Replies: 36
Views: 3753

Re: Why was the GBA sound so poor?

Oh that's great thanks for checking! Even BGM_DUMMY is PSG! Dark Spire too! Fire Red and Leaf Green has tons of PSG-like tunes so I bet there are some. Megaman Zero is a bit surprising though (although I mostly threw it in there because it's a Megaman game and a remake of a GBA game). Dragon Quest H...
by Pokun
Tue Feb 04, 2020 11:46 am
Forum: Other Retro Dev
Topic: Why was the GBA sound so poor?
Replies: 36
Views: 3753

Re: Why was the GBA sound so poor?

No that's not it at all. [explanation] OK that explains it. Not sure what Tepples means by "any mode can access" though, if it can't be accessed in DS mode. I meant "at least one mode", not "all modes". Ah I see. Now I'm confused. If it's not designed for music, then why are most games using it ins...
by Pokun
Sun Feb 02, 2020 6:08 pm
Forum: Other Retro Dev
Topic: Why was the GBA sound so poor?
Replies: 36
Views: 3753

Re: Why was the GBA sound so poor?

No that's not it at all. [explanation] OK that explains it. Not sure what Tepples means by "any mode can access" though, if it can't be accessed in DS mode. They're not ADPCM, just PCM. They were clearly designed from the start to be used to play back a mixing buffer, and not to be used as a music ...
by Pokun
Sun Feb 02, 2020 6:09 am
Forum: Other Retro Dev
Topic: Why was the GBA sound so poor?
Replies: 36
Views: 3753

Re: Why was the GBA sound so poor?

So the NDS is simulating the DMG/GBC APU using its own (different) PSG and ADPCM hardware? The PSG channels only seems to be able to do square and noise, so I guess it would need to emulate the triangle and wavetable channels using direct sound. What about the short period noise mode? Also direct so...
by Pokun
Tue Jan 28, 2020 5:37 pm
Forum: Other Retro Dev
Topic: Homebrew First-gen Console (AY-3-8500)
Replies: 13
Views: 2862

Re: Homebrew First-gen Console (AY-3-8500)

Wait if I'm making a palette with resistors I can only control the white objects. What if I'd want a lush green backdrop? I guess I'd need some kind of logic that watches the luma signals and send them to their respective colour circuit whenever they are white, and send them to a lush green circuit...
by Pokun
Mon Jan 27, 2020 5:33 pm
Forum: Other Retro Dev
Topic: Homebrew First-gen Console (AY-3-8500)
Replies: 13
Views: 2862

Re: Homebrew First-gen Console (AY-3-8500)

I don't really understand. An OR gate would just prevent all of them being high at the same time. 3 or 2 of them can still be high at the same time. ... No, that's not what an OR gate does? An OR gate is high if any of its inputs are high, and low only if all of its inputs are low. Ah that's right!...
by Pokun
Fri Jan 24, 2020 5:29 am
Forum: Other Retro Dev
Topic: Homebrew First-gen Console (AY-3-8500)
Replies: 13
Views: 2862

Re: Homebrew First-gen Console (AY-3-8500)

Sure but why is that so? Isn't 0.1 Vpp required for consumer line level audio? No, it's 1Vpp, not one-tenth of that. Doesn't matter much—you can just adjust it in the TV's volume control later—but you won't get a positive and real-valued mathematical solution if you try have the low-impedance (head...
by Pokun
Wed Jan 22, 2020 6:39 pm
Forum: Other Retro Dev
Topic: Homebrew First-gen Console (AY-3-8500)
Replies: 13
Views: 2862

Re: Homebrew First-gen Console (AY-3-8500)

TV Speaker (Vcc=6V, Vpp=0.1V, Z=10kΩ) You probably want Vpp higher than 0.1V for this. Sure but why is that so? Isn't 0.1 Vpp required for consumer line level audio? Oddly enough, that specific string shows up if you search for it. Looks like it's a comparatively high impedance voice coil. And rath...
by Pokun
Mon Jan 20, 2020 3:57 pm
Forum: Newbie Help Center
Topic: RPG Memory Organisation
Replies: 5
Views: 1623

Re: RPG Memory Organisation

Yeah as everyone says, for a traditional turn-based RPG the main problem is space (both ROM and RAM), not time (speed). FF1 do manages to have really slow battles for some reason though. I guess it was just Nasir being a newbie programmer together with short deadlines. There are many other NES RPGs ...
by Pokun
Mon Jan 20, 2020 12:30 pm
Forum: Other Retro Dev
Topic: Homebrew First-gen Console (AY-3-8500)
Replies: 13
Views: 2862

Re: Homebrew First-gen Console (AY-3-8500)

Unfortunately, I used the obtuse symbol "//" to mean "is in parallel with", not "is divided by". Oh I wasn't aware of such notation for parallel. That explains why it didn't work. In that case the formula should be like this: Z//R2÷(R1+Z//R2) = 1÷(1÷Z+1÷R2)÷(R1+(1÷(1÷Z+1÷R2))) = Vpp÷Vcc And the for...