DS #XXXX: Nintendo DS System BIOS GBA Mode (Europe)

Discussion in 'GBAtemp & Scene News' started by B-Blue, Jan 23, 2009.

Jan 23, 2009
  1. B-Blue
    OP

    Member B-Blue im a slut

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  2. Densetsu

    Former Staff Densetsu Pubic Ninja

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    [​IMG]

    What is this?
     
  3. m3rox

    Member m3rox GBAtemp Advanced Maniac

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    Something that I'm sure is going to get nuked. The NDS doesn't have a GBA mode outside of the actual GBA games.
     
  4. tinymonkeyt

    Member tinymonkeyt GBAtemp brat

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    ... a GBA mode?
    like..it plays GBA games?
    i r confused.

    EDIT: nvm, i are thinking too much
    its like some kind of a system jumper, whatever that is.
     
  5. Normmatt

    Member Normmatt Former AKAIO Programmer

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    This sounds like the gba bios has been dumped from the nds and been released, wow seriously like there aren't tools for people to do this themselves ffs.
     
  6. FlyingPretzel

    Member FlyingPretzel GBAtemp Regular

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  7. Densetsu

    Former Staff Densetsu Pubic Ninja

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    You're probably right. I was thinking "We have ROM dumps, hardware dumps, and now...mode dumps?!"
     
  8. Keylogger

    Member Keylogger GBAtemp Advanced Maniac

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    I think it's the NDS System menu (BIOS) that has been dumped into .gba format.
     
  9. elfsander

    Member elfsander GBAtemp Fan

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    People, just read the NFO. It's a GBA bios dump from the GBA bios in the DS.
     
  10. FAST6191

    Reporter FAST6191 Techromancer

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  11. Fabis94

    Member Fabis94 Xbawx playa

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    But what can you do with it? Can you play GBA games without Slot2 card or something?
     
  12. raulpica

    Supervisor raulpica With your drill, thrust to the sky!

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    Nope. It's just a GBA Bios that says to the GBA apps that run on it that they're running on a Nintendo DS in GBA mode, and not a GBA [​IMG]

    Except that, it's just a simple GBA bios. So this won't give any breakthru on running GBA roms from Slot-1.
     
  13. FAST6191

    Reporter FAST6191 Techromancer

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    @Fabis94 the BIOS on the GBA holds several functions beyond that of the PC style BIOS (decompression is good example but there are many other things: http://nocash.emubase.de/gbatek.htm#biosfunctions ).

    Assuming you do not want to reverse engineer it then the only use is for some emulators that support it; when making an emulator you have to write code to mimic the BIOS functions but if the BIOS already exists and your emulator is good enough then you can dodge having to write an alternative BIOS or emulate the functions contained within it.

    This being said most GBA emulators across all consoles I know of emulate the BIOS well enough to play games and then some, it is more for those that require "flawless" emulation (some coders need it). These days it probably has a negligible effect but there was a speed boost of sorts for some emulators once upon a time.
     
  14. gbaelink

    Member gbaelink GBAtemp Regular

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    Just try?The file in .bin format, don't know how to work~ [​IMG]

    - Title: [BIOS] Nintendo DS ARM7TDMI (GBA Mode) (World)

    - Details:
    ----| File Data |--------------------------------------------------
    System: Nintendo Dual Screen
    File: GBA_BIOS.BIN
    Length: 16384 Bytes
    CRC32: A6473709
    MD5: 1C0D67DB9E1208B95A1506B1688A0AD6
    SHA1: C11531D5261006810CDC954BD4BEC0AFE3187B35
    -------------------------------------------------------------------

    - Description:
    Team Cosby included the GBA BIOS from a *GBA* console in their
    Nintendo_DS_System_BIOS_NDS-COS/cos-bios release.

    This GBA BIOS comes from a *DS* console (Black EUR USG-001, doesn't
    really matter). There's nothing special with this dump, just 1 byte
    different from the TS2/Cosby dump, probably just to account for the
    system jump, as suggested by an aquatic friend of mine.
     
  15. Canonbeat234

    Member Canonbeat234 Redeemed Temper

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    So basically this 'rom' is not useful!
     
  16. Golds

    Member Golds Old Member

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    it'd be nice if someone could use this to create a .nds emu file that holds lots of gba games. kinda like the gba NES emus do, copy a ton of NES games to create one .gba file that holds all of those games.


    This would be wonderful for the DSi
     
  17. TravisTouchdown

    Newcomer TravisTouchdown Member

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    slot 1 only gba emu incoming?
     
  18. Gamer

    Member Gamer DS Gamer

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    Oh God, here we go again....
     
  19. FAST6191

    Reporter FAST6191 Techromancer

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    How has this thread got over 1000 views?

    @Canonbeat234 yeah it is for collectors, GBA emulator authors and the few who want to use it with an emulator (unnecessary and in the case of the GBA it has been for some time).

    Back on topic we have had the GBA BIOS as well as the SDK for using it for years (and tools to dump both this and the DS version for years too) and as people have mentioned this is no different in any way that matters.

    GBA emulator:
    Not going to happen, have a read:
    http://gbatemp.net/index.php?showtopic=72623

    re "bundling them into a single file" have a read as well as the thread above:
    http://gbatemp.net/index.php?showtopic=130924&hl=
     
  20. Covarr

    Member Covarr Sentient Cash Register

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    This is mildly useful simply because we know it works. There are so many incorrectly dumped GBA BIOS files on the web, and getting this specifically labeled one is a surefire way of making sure you get a good one.
     

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