Dump DS BIOS from 3DS?

Discussion in '3DS - Homebrew Development and Emulators' started by CyberTails, Dec 31, 2015.

  1. CyberTails
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    CyberTails GBAtemp Regular

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    Hey There

    I was wondering if there's a Homebrew application that'll dump the Emulated DS BIOS from a 3DS to use with something like DeSmuMe?
     
    Last edited by CyberTails, Dec 31, 2015


  2. Vanth88

    Vanth88 Private

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    Try downloading a DS homebrew app capable of dumping the DS bios and see what happens, you never know it might work. Just google dsbf dump.
     
    Last edited by Vanth88, Dec 31, 2015
  3. GalladeGuy

    GalladeGuy Freeze Kirby :3

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    You can't do that. The 3DS has no way of accessing DS homebrew.
     
  4. Jwiz33

    Jwiz33

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  5. CyberTails
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    CyberTails GBAtemp Regular

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    Exactly, that's why I asked for a 3DS Homebrew App to do such task (I don't own a DS Flashcart)
     
  6. Jwiz33

    Jwiz33

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    in the illuminati headquar—I have said too much!
    What the? Have you heard of a DS flashcart? :mellow::glare:
     
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  7. GalladeGuy

    GalladeGuy Freeze Kirby :3

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    *hides in corner*
     
  8. Vanth88

    Vanth88 Private

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    You didn't ask for a 3DS homebrew, you asked if it was possible on a 3DS >.>
     
  9. CyberTails
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    CyberTails GBAtemp Regular

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    I did. I had a DSOne a while back and an R4 as well, but for when I gave up my DS, I gave up the flashcarts too
     
  10. Jwiz33

    Jwiz33

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    in the illuminati headquar—I have said too much!
    I wasn't talking to you, I was talking to GalladeGuy by the way lol
    And a DS flashcart is the only way, so either download a BIOS online or get a new DS flashcart I guess
     
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  11. CyberTails
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    CyberTails GBAtemp Regular

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    Thanks anyway, I'll just use DeSmuMe without a BIOS and see how it runs (I really wanted it to play Puyo Pop Fever online anyway :))
     
  12. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    You can find the bios on Google ;) There should be 3 files.
    Edit: The 3 files are firmware.bin, biosnds7.rom and biosnds9.rom
     
    Last edited by The Real Jdbye, Dec 31, 2015
  13. Vanth88

    Vanth88 Private

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    Ah hell I'll try it. I dumped my DS Lite's bios a while back but I've lost the files (I'm sure they're here somewhere). When you download a bios online you're also getting the profile, name, and stuff like that. So while you could download a bios, it's not customized. As far as I know it's also not possible to alter a firmware from desmume (unless they changed it).
     
  14. Ammako

    Ammako GBAtemp Guru

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    DeSmuME should run just fine without bios/firmware files.
    To help make it run faster you can enable dynamic recompilation which should massively speed it up.

    What's the advantage of having the bios files anyway?
     
  15. Syphurith

    Syphurith Beginner

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    Some games uses the console information (such as Prof. Layton Series) to calculate something. So i can not import the Password from Desmume Save to 3DS one.
    However the rewards are just some illustrations, and I finally got those from the walkthrough.. easily. So Problem solved for me.
    In fact, BIOS emulation would infer LLE (Low-Level Emulation) and it is HLE-ed(High-Level ..) if without the BIOS.
    HLE runs faster on PC and LLE runs almost accurate always. So in fact the bios file may lead to a speed decrease. That's all what i know about the DS BIOS for emulation.
     
  16. DiegitusXD

    DiegitusXD GBAtemp Fan

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    Somebody have a GBA bios for mGBA?:D
    And with a bios,mGBA will go more fasteri n an O3DS?
     
  17. Mrrraou

    Mrrraou GBAtemp Advanced Maniac

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    Try decrypting the TWL_FIRM CIA.
     
  18. Ammako

    Ammako GBAtemp Guru

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    bios files are copyrighted content, and as such, may not be shared on GBAtemp, and asking for them is also against the rules.
    You will have to rely on your Google-fu.

    Do keep in mind that there seems to be a few different versions of the gba_bios floating around online that are bad dumps and may give you problems.

    a860e8c0b6d573d191e4ec7db1b1e4f6 is the md5 of the proper gba bios dump.
     
    Last edited by Ammako, Dec 31, 2015
  19. DiegitusXD

    DiegitusXD GBAtemp Fan

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    AAAh ok.Sorry,I didn't know that:P
     
  20. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    I don't think it would be that simple, as DS games run on hardware the BIOS is probably on a separate chip, I might be wrong though.