jenesis question

Discussion in 'NDS - Emulation and Homebrew' started by themuddaload, Jul 21, 2008.

Jul 21, 2008

jenesis question by themuddaload at 4:04 PM (3,979 Views / 0 Likes) 17 replies

  1. themuddaload
    OP

    Member themuddaload Creepin' hardcore.

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    does jenesis support zipped roms?
     
  2. Rod

    Member Rod GBAtemp Fan

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    Don't think so.
     
  3. Japhle

    Member Japhle GBAtemp Regular

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    Probably not.
     
  4. kobykaan

    Member kobykaan GBAtemp Addict

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    just checked NO it doesnt! [​IMG]
     
  5. Apex

    Member Apex GBAtemp Fan

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    Genesis roms aren't that big anyways; I think JenesisDS only supports up to 4MB ones as it is.
     
  6. granville

    Member granville GBAtemp Goat

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    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.
     
  7. Benandanti

    Newcomer Benandanti Advanced Member

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    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.)
     
  8. granville

    Member granville GBAtemp Goat

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    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.
     
  9. Destructobot

    Member Destructobot Crave the Hammer

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    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.
     
  10. granville

    Member granville GBAtemp Goat

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    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.
     
  11. Lordus_

    Newcomer Lordus_ Member

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    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..
     
  12. granville

    Member granville GBAtemp Goat

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    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?
     
  13. Destructobot

    Member Destructobot Crave the Hammer

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    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.
     
  14. granville

    Member granville GBAtemp Goat

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    Yes, I'm slow. Rub salt in the wound won't you? [​IMG]
     
  15. Japhle

    Member Japhle GBAtemp Regular

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    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.)
     
  16. granville

    Member granville GBAtemp Goat

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    Sonic CD, Lunar and Lunar 2 right? There's decent games here and there. Sonic CD is just spectacular!
     
  17. evoo1

    Member evoo1 GBAtemp Regular

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    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^^
     
  18. Benandanti

    Newcomer Benandanti Advanced Member

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    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.
     

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