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Thread: Something I've been working on.

  1. #26
    Krauser's Shoe Shiner
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    NeoTurfMasta is correct, a NeoBiosMasta will make your life a lot easier if you plan on installing a replacement BIOS in a NEOCD toploader. It's a very clever design, thanks NeoTurfMasta!

  2. #27
    Crawley's Sergeant
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    Quote Originally Posted by Razoola View Post
    Yup, pc will be required (mac and other should be possible also). Every MVS game would be compatable if there was a way to increase the cache.

    About the cuerrent speeds. The current protocol uses 8 data lines, on the MVS we can get speeds of 150k/s. On the CD system the joysticks are hooked up a little differently internally and that slows things down to around 120k/s. we could go 16bit and double the speed in theory. There are other ways to give an even higher speed also but would require internal modding. USB transfer rates are not the limiting factor at present.

    ....
    Nice work, raz.

    I'm currious about the internal mod.

    The slow CD load time is what made me get rid of my CD system.

  3. #28
    Tech Support Moderator

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    Nice work!

  4. #29
    Analinguist of the Year galfordo's Avatar
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    good shit, thanks for sharing

    i will never forget you saving the day with sam sho 5 special

    after showing us this, hopefully you will not disappear a few months later and then delete your facebook and twitter accounts, never to be heard from again
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    We be chillin'

  5. #30
    . SNKorSWM's Avatar
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    Does the uploading of the Unibios overwrites the original one in the NGCD?

  6. #31
    Kyo's Flame
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    You bypass the original BIOS with the NeoBiosMasta which can contain a UniBIOS. It would be simple to take off the NeoBiosMasta and revert to the original BIOS.

  7. #32
    . SNKorSWM's Avatar
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    Thanks for the explanation.

  8. #33
    Eager Beaver mastamuzz's Avatar
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    Quote Originally Posted by NeoTurfMasta View Post
    Also wanted to add that once this is done, the CD version of the NeoBiosMasta allows you to install this bios quickly and easily
    From the thread you mentioned earlier I recall that there were problems when trying to close the system with the neo bios masta, but also that murray's system (direct replacement for a FL) worked fine, any findings or updates on that NTM?

  9. #34
    Divine Hand of the UniBIOS
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    Quote Originally Posted by Tyranix95 View Post
    Nice work, raz.

    I'm currious about the internal mod.

    The slow CD load time is what made me get rid of my CD system.
    What you see in the video requires no internal modding. Once finished the complete thing will require internal modding but as already pointed out with the NeoBiosMasta its not hard.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  10. #35
    Divine Hand of the UniBIOS
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    Quote Originally Posted by SNKorSWM View Post
    Does the uploading of the Unibios overwrites the original one in the NGCD?
    The video does not upload the unibios, it simply uploads a section of code from that bios into RAM that has then been modified to work on the CD system.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  11. #36
    DANCE DANCE KARNOV!
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    Quote Originally Posted by mastamuzz View Post
    From the thread you mentioned earlier I recall that there were problems when trying to close the system with the neo bios masta, but also that murray's system (direct replacement for a FL) worked fine, any findings or updates on that NTM?
    Yep!
    http://www.neo-geo.com/forums/showth...=1#post3398850

    It all came down to shielding the CDROM drive.

  12. #37

  13. #38
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    This means work on the Neo Geo CD UniBIOS will commence again, right?

  14. #39
    Whip's Subordinate
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    It's great that with all the negative words in the drama threads recently, there are positives coming out of the increased activity here such as this and Nightmare Tony's thread

  15. #40
    Edo Express Delivery Guy
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    Quote Originally Posted by Razoola View Post
    Every MVS game would be compatable if there was a way to increase the cache.
    That's the trick though, how do you increase the size of the cache? There must be a way.

  16. #41
    Galford's Armourer

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    I've heard about this but haven't seen it actually working until this thread. Looks great. Easily the best way to trial homebrew on real hardware right now. I see the original NeoCD chips on the MV1A plus a few extras for cart-only stuff so the potential must be there for an expansion to play bigger games, but the extent of stuff that has to be added/modified makes me doubt it'll happen before a flashcart appears. Definitely possible though but not as simple as the attempt at trying to fill the empty pads on a CDZ.

  17. #42

    Neo Alec's Avatar
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    Very interesting. Can't wait to see the final version. You really take this hobby to the next level, Raz.

  18. #43
    Hardened Shock Trooper
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    First, congratulations for your work, I'm a big fan, with unibios on every neo geo I had (except the NGCD)

    Is it really impossible to make a PC free solution? From what I can tell the instructions of which file to get are passed by the computer but this could be implemented on the bios side.
    Or at least a bootup CD with the instructions for each individual game and a storage device on the 2p controller port.

  19. #44
    Eager Beaver mastamuzz's Avatar
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    Raz can you post pics of the PC2NeoCD cable?

    any plans on a kit release for the UB-CD and cable?

    I am happy to see the Neo-cd is getting some love at last!


    I am just shooting in the dark here but:
    Is it possible to bypass the bottleneck by adding a daughter board with increased ram to make some sort of pre buffering with updated instructions from the bios? even a dual bank to switch to a preloaded bank from the one in use? I know NTM can do a great job on that if possible!
    Last edited by mastamuzz; 08-17-2012 at 08:33 PM.

  20. #45
    Krauser's Shoe Shiner
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    Here's a picture of the 1st prototype. This was hand etched in my garage so it's a little rough around the edges:

    http://www.epromfoundry.com/usb2neo.jpg

  21. #46
    Bunker Buster
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    Gives me a reason to start actively looking for a Neo CD again. Awesome work, Raz!
    ...console emulation has no soul...

  22. #47
    PROBABLY A NARC!!! 420neogeo's Avatar
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    great work, keep it up

  23. #48
    drunk downunder!
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    Great work Raz, good to see modifications are still being dreamt up and created.



    DANGER!!

  24. #49
    Divine Hand of the UniBIOS
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    Me and Mike have spend a few days working on this and while we have had some hiccups which need solving we have also made some really good progress.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  25. #50
    Edo Express Delivery Guy
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    Quote Originally Posted by Razoola View Post
    Me and Mike have spend a few days working on this and while we have had some hiccups which need solving we have also made some really good progress.
    Awesome! I'm actively watching this thread for any new news. Keep up the good work!

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