Search found 2969 matches

by psycopathicteen
Wed Dec 30, 2020 2:14 pm
Forum: NESdev
Topic: NES code portability
Replies: 8
Views: 790

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 ...
by psycopathicteen
Wed Dec 30, 2020 11:50 am
Forum: NESdev
Topic: NES code portability
Replies: 8
Views: 790

Re: NES code portability

Is VRAM arranged the same way on both versions of SMB3?
by psycopathicteen
Sat Dec 12, 2020 9:45 am
Forum: SNESdev
Topic: 16x32 sprites in interlaced mode?
Replies: 2
Views: 1644

Re: 16x32 sprites in interlaced mode?

I've always what kind of internal logic ends up with 16x32 and 32x64 sprites in the first place.
by psycopathicteen
Wed Dec 02, 2020 10:16 am
Forum: SNESdev
Topic: Why no SNES homebrew scene?
Replies: 460
Views: 149454

Re: Why no SNES homebrew scene?

Now I can't unnotice it.
by psycopathicteen
Sat Nov 28, 2020 9:41 am
Forum: Other Retro Dev
Topic: What if Sinistar's voice sample chip was used to play music?
Replies: 9
Views: 4028

Re: What if Sinistar's voice sample chip was used to play music?

I just tested an 8kHz wave (3 samples up, 3 samples down) and I found out that it does work, so there are two possibilities: 1) it increases slope every 2 same bits in a row, by a rate smaller than it decreases, but larger than half the rate 2) it increases slope every 3 same bits in a row, by a rat...
by psycopathicteen
Fri Nov 27, 2020 6:50 pm
Forum: SNESdev
Topic: Why no SNES homebrew scene?
Replies: 460
Views: 149454

Re: Why no SNES homebrew scene?

Hey, it actually is doing CPU scaling. That is pretty cool.
by psycopathicteen
Fri Nov 27, 2020 5:13 pm
Forum: SNESdev
Topic: Why no SNES homebrew scene?
Replies: 460
Views: 149454

Re: Why no SNES homebrew scene?

I think it would sort out the sprites by Y position.
by psycopathicteen
Fri Nov 27, 2020 10:01 am
Forum: Other Retro Dev
Topic: What if Sinistar's voice sample chip was used to play music?
Replies: 9
Views: 4028

Re: What if Sinistar's voice sample chip was used to play music?

I was doing experiments with the CVU converter and I had a few observations on how the algorithm worked. - There is a max slope rate that appears to be about 1/32 - The previous sample seems to get multiplied by a value slightly less than 1 (maybe 63/64?) - When sampling a 6kHz sine wave at 48kHz, t...
by psycopathicteen
Fri Nov 27, 2020 9:02 am
Forum: SNESdev
Topic: Why no SNES homebrew scene?
Replies: 460
Views: 149454

Re: Why no SNES homebrew scene?

And don't ask me to remake Patsy using a custom homebrew SNES engine, please. I'm ashamed of that game and I think even the idea of it was pretty stupid. Well, is a beginning xD My first game was a numeric tetris, and i had to cheat with the code, THAT was a shame :lol: I have an eye with the AoF2,...
by psycopathicteen
Thu Nov 26, 2020 4:58 pm
Forum: Other Retro Dev
Topic: What if Sinistar's voice sample chip was used to play music?
Replies: 9
Views: 4028

Re: What if Sinistar's voice sample chip was used to play music?

What's weird is that eventhough the file comes out as 8khz, it's in slowmotion and I have to speed it up to 16khz for it to be at the correct speed. To do 32khz, I have to slow it down 2x, convert it, then speed it back up to 4x. I'm saying even doing with 32khz, it sounds muffled like an 8khz pcm. ...
by psycopathicteen
Thu Nov 26, 2020 3:09 pm
Forum: Other Retro Dev
Topic: What if Sinistar's voice sample chip was used to play music?
Replies: 9
Views: 4028

Re: What if Sinistar's voice sample chip was used to play music?

I'm actually surprised how easy it was to find a wave to cvsd converter. https://convertio.co/wav-cvsd/

I've played around with some samples, and I noticed a 32000hz cvsd sounds about as muffled as 8000hz pcm.
by psycopathicteen
Tue Nov 24, 2020 10:54 am
Forum: SNESdev
Topic: Are High SNES Homebrew Expectations Justified?
Replies: 103
Views: 27365

Re: Are High SNES Homebrew Expectations Justified?

I never thought nesdev has much gatekeeping. Smwcentral and nearly every website hosted by "acmlm" on the other hand :roll: .
by psycopathicteen
Sun Nov 22, 2020 1:58 pm
Forum: SNESdev
Topic: Can the SNES use 1bpp tiles?
Replies: 15
Views: 4250

Re: Can the SNES use 1bpp tiles?

You guys know there is a way to DMA 1bpp tiles without having the CPU manually convert tiles, right?
by psycopathicteen
Sat Nov 21, 2020 4:12 pm
Forum: Other Retro Dev
Topic: What if Sinistar's voice sample chip was used to play music?
Replies: 9
Views: 4028

What if Sinistar's voice sample chip was used to play music?

I was looking through youtube and I found this video using the NES's DPCM channel to play music: https://m.youtube.com/watch?v=YvRqV9tBI7c&t=72s ...and it sounds pretty lousy. I'm think that Sinistar's chip chip would be similar, but slightly better just because it uses 1-bit adpcm instead of 1-bit ...
by psycopathicteen
Sun Nov 08, 2020 10:42 am
Forum: SNESdev
Topic: Are High SNES Homebrew Expectations Justified?
Replies: 103
Views: 27365

Re: Are High SNES Homebrew Expectations Justified?

if you can code the 65816, then you can code the SPC-700 to do what you directly. Its just a 6502 with hardware mul and I think div. Having it run in parallel is a huge speed boost. Since the SPC-700 is out of sync with the SNES's clock, you want to avoid direct contact as much as possible, its jus...