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Discussion in 'NDS - Emulation and Homebrew' started by themuddaload, Jul 21, 2008.
does jenesis support zipped roms?
Don't think so.
just checked NO it doesnt!
Genesis roms aren't that big anyways; I think JenesisDS only supports up to 4MB ones as it is.
Actually it supports up to 3 megabytes not 4. The DS itself has only 4MB of ram. The emulator itself takes up 1MB and it can load games up to 3MB. Lordus said getting the 4MB+ games to load is a priority for JenesisDS 0.8. He says he can do it easily enough, but he hasn't gotten to it yet due to other more important parts.
If the 4+ MB barrier can be broken, would it be possible to emulate Sega CD games at a later date or is the hardware too different. (I'd expect Sega CD emulation would need a lot more RAM than the Genesis would at any rate.)
The Sega CD is faster and has other enhancements. The system seems to have similar specs to the NeoGeo and THAT was emulated. The music would be tough to deal with though.
SegaCD games would actually probably need less RAM to emulate, as the games had to keep the working data set in the SegaCD's 768KB of main RAM. The main problem would be the second MC68000 running at a higher clock speed than the Genesis' CPU, and the extra graphics and sound hardware.
Does the secondary CPU run alongside the Genesis CPU or does it disable the other one? The Sega CD SPU looks to run at a similar clock rate as the NeoGeo. Could a high-level emulator handle it like NeoDS? I'm not trying to be an irrational noob like those who think N64 can run on DS. I'm just curious. 32x I know to be impossible.
The CPUs run in parallel. The second CPU in the SegaCD is mainly responsible for controlling the CD-Rom, the extra scaling and rotation hardware and doing extra processing for the main CPU in the Genesis.
Besides all those things, you have to emulate the CD-Controller, handle the streaming from the CD-image and the additional sound stuff.
To make it short: It's no problem at all. Just wait until i make it work..
Lordus, are you saying you actually ARE working on Sega CD emulation?
"To make it short: It's no problem at all. Just wait until i make it work.."
Or was this sarcasm?
You really have to ask? Ask yourself this: could the DS run both jEnesisDS and NeoDS full speed at the same time? If so, SegaCD emulation should be no problem.
Yes, I'm slow. Rub salt in the wound won't you?
I'm slow too, oh well, there were like literally only two really good games on the sega CD.(that I can think of anyways.)
Sonic CD, Lunar and Lunar 2 right? There's decent games here and there. Sonic CD is just spectacular!
Well it had several really good ShootEmUps but also Shining Force CD was pretty awesome. Still coding a Sega CD DS emu would be a waste of time, theoretically of course^^
That's a pity, playing through the Snatcher Pilot got my hopes up that playing the whole thing on a DS would be possible someday.
Ah well, there's plenty other games in the sea.