Search found 7973 matches
- Sun Jan 17, 2021 4:27 pm
- Forum: Other Retro Dev
- Topic: Video Game Consoles with games stored in single-sided cards
- Replies: 5
- Views: 128
Re: Video Game Consoles with games stored in single-sided cards
Nintendo Switch
- Tue Jan 12, 2021 2:06 pm
- Forum: NESdev
- Topic: Is PPU_DATA read slow?
- Replies: 4
- Views: 345
Re: Is PPU_DATA read slow?
An answer to the literal question: individual PPU reads/writes are the same speed as any other read/write on this CPU. It's probably worth saying so, just because there are lots of platforms (modern and old) where video memory access is slower. As others have pointed out, you have a bandwidth proble...
- Fri Jan 08, 2021 9:26 pm
- Forum: Newbie Help Center
- Topic: CHR-ROM vs. CHR RAM
- Replies: 16
- Views: 8466
Re: CHR-ROM vs. CHR RAM
if a game that uses Mapper 2 is 16K or less, is it functionally an NROM, since you won't need to use the '161 for mapping anything? Yes, that should in theory act the same as NES-128k, since $C000-FFFF is fixed to the last bank already. Wait, really? So, there are emulation consoles that can't run ...
- Fri Jan 08, 2021 2:41 pm
- Forum: Newbie Help Center
- Topic: CHR-ROM vs. CHR RAM
- Replies: 16
- Views: 8466
Re: CHR-ROM vs. CHR RAM
mapper241, mapper177, mapper178, mapper15, mapper227 All of these are obscure mappers, though. If you're worried about an emulator that doesn't support NROM + CHR-RAM, you're probably also worried about that same emulator not supporting obscure mappers. (E.g. the PowerPak doesn't support any of tho...
- Thu Jan 07, 2021 11:12 pm
- Forum: Newbie Help Center
- Topic: CHR-ROM vs. CHR RAM
- Replies: 16
- Views: 8466
Re: CHR-ROM vs. CHR RAM
I don't know which emulators do or do not emulate mapper 0 with CHR-RAM, though you can sidestep the problem pretty easily? An NROM + CHR-RAM game could be converted to mapper 2 (extremely common and always with CHR-RAM) with just a couple lines of code. The wiki seems to recommend mapper 34, which ...
- Wed Jan 06, 2021 4:32 pm
- Forum: Homebrew Projects
- Topic: Nesdemia - game about covid
- Replies: 28
- Views: 6979
Re: Nesdemia - game about covid
I'm noticing in Mesen occasionally it presses right unexpectedly. Especially on the DNA spending screen, this means it automatically adds points to stat you have selected without asking. This usually indicates a conflict between DPCM samples and the controller read. The "classic" way to solve this i...
- Wed Jan 06, 2021 3:20 pm
- Forum: NESemdev
- Topic: New hardware and the INES 2.0 header
- Replies: 10
- Views: 697
Re: New hardware and the INES 2.0 header
Since it’s not a mapper and will be avaiable on ”all” mappers and a game would work even if the expansion is not there. Adding mappers for it feels like a wrong way to go. For this reason, it sounds like it has no need to be in the iNES header at all? This would be an emulator option, not part of a...
- Wed Dec 30, 2020 6:46 pm
- Forum: NESdev
- Topic: NES code portability
- Replies: 8
- Views: 782
Re: NES code portability
Is VRAM arranged the same way on both versions of SMB3? I doubt it, considering the weird height of NES name tables. But that's the kind of thing that's expected to change between ports anyway, while the game logic has a much better chance of being reused. I mean, are the tiles and sprite patterns ...
- Mon Dec 28, 2020 5:01 pm
- Forum: NESdev
- Topic: List of games that use power-on state to seed RNG
- Replies: 36
- Views: 4095
Re: List of games that use power-on state to seed RNG
Oh dear. "After noticing that you could cause a bug in the saves from Dragon Quest III by increasing the temperature of the cartridge and start at level 99 at a specific temperature, a player has made a speedrun of the game with his console resting on a hot plate." https://twitter.com/VGDensetsu/sta...
- Sat Dec 26, 2020 2:51 pm
- Forum: NESdev
- Topic: Music program/replayer?
- Replies: 17
- Views: 1614
Re: Music program/replayer?
Yes that's exactly what the mentioned drivers are.
- Sat Dec 26, 2020 2:41 pm
- Forum: NESdev
- Topic: Music program/replayer?
- Replies: 17
- Views: 1614
Re: Music program/replayer?
You'll have to define the word "replayer", because I don't know what you mean if that driver isn't already exactly what you're asking for.
- Sat Dec 26, 2020 2:36 pm
- Forum: NESdev
- Topic: Music program/replayer?
- Replies: 17
- Views: 1614
Re: Music program/replayer?
Feature request to all NES tracker coders in the future: Provide a replayer source so people actually can use their music in anything else than a pure .NSF/such. It would also be nice if the RAM needed by the replayer is "relocatable" aswell (not requires a specific memory address but just any spec...
- Sat Dec 26, 2020 2:11 pm
- Forum: NESdev
- Topic: Music program/replayer?
- Replies: 17
- Views: 1614
Re: Music program/replayer?
If the music was made in Famitracker, that has its own "driver" source that you can put in an NES ROM with the exported data to play the music. It's great for if you just want a demo. The reason people don't use that one so much in games is that it doesn't have SFX and it's a bit "heavy" with featur...
- Fri Dec 25, 2020 11:46 am
- Forum: NES Music
- Topic: Is it possible to mix DMC samples in software?
- Replies: 5
- Views: 551
Re: Is it possible to mix DMC samples in software?
Naively converting PCM to DPCM is fairly simple: for each sample, if the current DPCM output level is more than the desired PCM, put a 0, else put a 1. (If you wanted to "mix" DPCM, you'd essentially be doing something equivalent to converting the DPCM to PCM and approximately following the desired ...
- Thu Dec 24, 2020 6:42 pm
- Forum: NES Music
- Topic: About MMC5's 2 square channels
- Replies: 19
- Views: 1550
Re: About MMC5's 2 square channels
I remembered where I put them, and I'm hoping I can offer them in good faith without being accused of some sort of superiority complex, but here's the thread where I posted those MMC5 findings specifically, the test ROMs used, and recordings made using them. (See swap_tests.zip) http://forums.nesdev...