Problems with SNEmulDS

Discussion in 'NDS - Emulation and Homebrew' started by IzzyInfamous, Jan 11, 2010.

  1. IzzyInfamous
    OP

    IzzyInfamous Member

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    I'm using an m3i zero card (running Sakura), and an american DSi.

    Pretty much every game I play is laggy, and/or has missing textures/layers/sprites/messed up fonts/the works.

    Is there something special I was supposed to do? I just tossed SNEmul on, ran the .nds file, and tried to run the roms, but no bueno so far.

    EDIT: The games I've tried so far are:

    Super Metroid
    Secret Of series
    Final Fantasy III and Mystic Quest
     
  2. DeMoN

    DeMoN GBAtemp Guru

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    You could fiddle with the graphics options a bit, since many games play better using different settings.
    But usually this doesn't change the fact that the DS is just not meant to emulate the SNES. There are tons of games that just don't work at all and very few games can be run perfectly.

    Here's a partial compatibility list: http://wiki.gbatemp.net/wiki/index.php?tit...patibility_List
    Use it to see which of the games you are trying to play are even capable of being played.
     
  3. IzzyInfamous
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    IzzyInfamous Member

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    Thank you!

    What exactly is it that makes it so hard for the DS to emulate the SNES? RAM? Would emulating via the iPlayer make things work any better?
     
  4. 8BitWalugi

    8BitWalugi Taiyohhhhhh!

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    Well, the SuperCard DS 2 seems to have a very promising SNES emulator. Only for DSi however
     
  5. RchUncleSkeleton

    RchUncleSkeleton Skeletron 9000

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    I'm guessing someone just needs to figure out how to code correctly for the arm946 processor in the ds and we'd get a much more stable, compatible emulator for the snes.
     
  6. DanTheManMS

    DanTheManMS aka Ricochet Otter

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    You have no idea what you're talking about. The emulator is already coded very specifically for the DS. It uses the DS's built-in 2D hardware to render graphics, which means that it takes very little CPU time to draw to the screen. A traditional software-based renderer would spend a very large amount of time drawing to the screen, plotting it pixel-by-pixel, which would become a major bottleneck. You'll notice that SNEmulDS has no frameskip options; this is because it would be entirely useless and wouldn't improve speed at all, since the processing time is spent almost exclusively emulating the CPU, not rendering graphics. However, the DS's 2D hardware isn't exactly the same as the SNES's graphics hardware, and so you get those graphical glitches and layering problems. It's the sacrifice he had to make to get it running at full speed.

    In other words, you could either get games running at fullspeed with graphical glitches or running at 40% speed with excellent graphics. Archeide chose speed.

    The issue, as always, is time and interest. Archeide simply lost interest, which is why the emulator hasn't gone anywhere. It's open-source, but nobody's taken on the project. Unless you wish to volunteer, there's not much that can be done.