nesdev.org

creaothceann wrote: ↑Sun Aug 16, 2020 6:18 am https://youtu.be/J4LNM8b9Vg4

Cooooool!!!

Damn, nicely done

This looks fantastic!

Feel free to use my music if you wish! It uses a later version of snesmod though and the .it files may use too much ARAM. The specific snesmod driver used for pulse width modulation and noise generation may also not work with sound effects.. you might have to rewrite some of the snesmod source to get it to work heh.

Here's the link if you want the SPC or source .IT files

https://youtu.be/rDWbl3YKjj0

I played the demo you've made just now and...
Oh my God, this is legit!
Now I didn't play this on an emulator, but I played it on a 3ds.

I've tried on a chinese everdrive (not superufo) and appers a screen from a translation of chrono trigger... but the same file plays ok on bsnes emulator.



Have anyone tested it with everdrive on the real hardware?

btw awesome job Tiago!

How do I download this?

Tiago took it down while they're making some improvements.

lidnariq wrote: ↑Mon Aug 17, 2020 1:57 pm Tiago took it down while they're making some improvements.

Considering the first post says "the sound part is not ready yet", I don't suppose there's a remote chance that they're implementing MSU1 as a means of achieving 100% accurate-to-Genesis audio by simply playing recordings instead?

I hope not. I'd really rather have it star kulor and/or tssf's work instead, showing that the SPC700 can itself make something that sounds as rich instead of just passing the buck.

I mean, theoretically one could brute-force the issue by implementing support for the ST018 (if possible that is) and just directly emulate the Yamaha YM2612 FM synthesizer...assuming that the IPC of the ARMv3 used in ST018 isn't that far off of the somewhat higher-clocked ARM7 and ARM9 CPUs found in the DS considering that the DS can emulate an entire Genesis (though maybe not all that accurately), so emulating just the Yamaha synthesizer by itself certainly wouldn't require as much computational grunt as what the DS's dual ARM CPUs provides.

Though the ST018 would make it no longer compatible with sd2snes... (ST018 uses a freakin' 21MHz ARM CPU after all!)

Rin Tohsaka wrote: ↑Mon Aug 17, 2020 5:37 pm Though the ST018 would make it no longer compatible with sd2snes... (ST018 uses a freakin' 21MHz ARM CPU after all!)

Yeah, that would make it hard to play on a real console. I'd rather just use the SPC700, where there's much less hassle. Using an ARM just for some music is ridiculous. I mean, it won't even guarantee more accurate sound considering how hard OPN2 emulation has been back when most computers were already pretty slow. Imagine how hard it'd be on a 21 mHz ARM.

Nikku4211 wrote: ↑Mon Aug 17, 2020 6:44 pm Imagine how hard it'd be on a 21 mHz ARM.

That's why I referenced the DS emulating an entire Genesis as it has a 33MHz ARM7 and a 67MHz ARM9, and as we all know that doesn't automatically equal a 100MHz single core ARM CPU.

If i'm not wrong, mario rpg or jikkyou oshaberi parodius uses an SA-1 for sound tasks, although i don't know if decompression or to gain bandwidth.

Could theoretically be used an external cpu from a cartridge to replace the spc700 data transfer capacity?.

Well Sonic musics aren't particularly demanding, not many instruments, not weird / long FM instrument, not many SFX as well... i believe it's perfectly doable to replicate less or more accurately the sound part of the game using the SPC700 without any external assistance.

Rin Tohsaka wrote: ↑Mon Aug 17, 2020 6:51 pm

Nikku4211 wrote: ↑Mon Aug 17, 2020 6:44 pm Imagine how hard it'd be on a 21 mHz ARM.

That's why I referenced the DS emulating an entire Genesis as it has a 33MHz ARM7 and a 67MHz ARM9, and as we all know that doesn't automatically equal a 100MHz single core ARM CPU.

But the ARMv3 is slower than both of them, and even worse, it's ARMv3, rather than ARMv4T like the ARM7TDMI is and ARMv5TE like the ARM946E-S is. And how accurate is the DS at emulating the Mega Drive's sound anyway?