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Thread: Something I've been working on.

  1. #51
    Divine Hand of the UniBIOS
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    As promised more videos showing current status....

    ------------------------------------




    video above show normal CD bios with pc-2-neo embedded loading from PC with a game CD present. CD audio tracks play



    video above show normal CD bios with pc-2-neo embedded loading from PC with no game CD present



    video above shows modded universe bios running on the CD system. In game CD loading and CD audio is not supported but almost everything else works as intended. There are some issues as the video shows.

    ------------------------------------

    As you can see progress has been made since the first video. I Want to point out these videos have not been edited so you get an idea of the current upload speeds through a single joystick port. The unibios and cdbios (with pc2neo embedded) sit in a single 512KB EPROM. We managed this by compressing data on in the original 512KB CD bios. This gives the ability to switch between bios with a switch.

    If you have not already guessed the purpose for these bios is not to play games but as a dev tool for homebrew etc. That said the bios does give the ability to load games on a system with broken CD drive.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  2. #52
    neo retired
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    Awesome work

  3. #53
    Ukyo's Doctor
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    How is the bios attached to the neo geo cd, NeoMasta socket? Very Cool, I thought the bios changes for Neo Geo CD were "stalled". very cool Raz again.

    Thanks
    Looking for UK copies of Dive Alert Becky's Version, Puzzle Link 1 and 2, Gals Fighters, and Pocket Reversi.
    http://www.neo-geo.com/forums/image.php?type=sigpic&userid=41108&dateline=145772  3980

  4. #54
    Divine Hand of the UniBIOS
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    Yes with the Neobios Masta, Brian has given us a couple for this project which has helped greatly.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  5. #55
    Krauser's Shoe Shiner
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    Quote Originally Posted by wyndcrosser View Post
    How is the bios attached to the neo geo cd, NeoMasta socket?Thanks
    Yes, Neoturfmasta was very helpful in providing the NBM sockets required to replace the BIOS. The current hardware has an NBM socket with a 6" ribbon cable which attaches to a 40-PIN DIP socket. Having the ribbon cable greatly improves the ability to switch 27C400 eproms in and out when testing.

  6. #56
    DANCE DANCE KARNOV!
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    I may redesign the CD NBM once this is all complete. To help with getting around cutting a hole in the shielding AND adding a memory card slot.

  7. #57
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    awesome work guys! Thanks a lot for keeping coming!

  8. #58
    Eager Beaver mastamuzz's Avatar
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    Quote Originally Posted by NeoTurfMasta View Post
    I may redesign the CD NBM once this is all complete. To help with getting around cutting a hole in the shielding AND adding a memory card slot.
    If I remember correctly you did a MC test already with satisfactory results and posted the process in another thread right? but there were too many cables soldered to the IM on the cd system, have you come up with something to make it user friendly?

    I am very interested on that too!

    @ Raz

    any plans on a NGcd-UB for games? development is great but would be awesome to have a UB for games too!
    Last edited by mastamuzz; 10-31-2012 at 02:03 AM.

  9. #59
    Divine Hand of the UniBIOS
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    No plans for unibios in CD games at this time. I see no point to be honest as the main features can be done with pc2neo including region switching. You can patch cheats in the game code directly instead of wasting cycles paching RAM.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  10. #60
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    Hello, very interesting project, i will command one .D
    so have you test some no CD game like Andro Dunos , Eight Man etc ?
    have they the bug we can have in the homebrew cd conversion game ?

  11. #61
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    Quote Originally Posted by kuk View Post
    so have you test some no CD game like Andro Dunos , Eight Man etc ?
    ?
    Yes, in fact one of our earliest demos was Andro Dunos playing, check the 1st message in this thread This was done before Raz added the PC-2-NEO code into the bios so the initial loader booted from CD.

    Quote Originally Posted by kuk View Post
    have they the bug we can have in the homebrew cd conversion game ?
    ?
    What bug are you referring to?

  12. #62
    Super Spy Agent
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    andro dunos are not a good exemple because we have no bug in the cd convertion
    i list all the bug here (in french but we said bug too...)
    http://www.neogeocdworld.info/html/j...nversions.html

    so try with Ghostlop or Money Puzzle Exchanger for exemple
    Last edited by kuk; 11-01-2012 at 09:56 AM.

  13. #63
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    Quote Originally Posted by kuk View Post
    andro dunos are not a good exemple because we have no bug in the cd convertion
    i list all the bug here (in french but we said bug too...)
    I only mentioned Andro Dunos because it was the 1st game you asked about in your previous post. The replacement bios is more for testing homebrew software in a development cycle so more emphasis has been spent testing testing dev related features vs. testing existing games made for the NGCD. That said, the NGCD games I've tested seem to work fine.

  14. #64
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    Quote Originally Posted by mastamuzz View Post
    If I remember correctly you did a MC test already with satisfactory results and posted the process in another thread right? but there were too many cables soldered to the IM on the cd system, have you come up with something to make it user friendly?
    Yeah the memory card works fine on it. I never made a PCB for the memory card so the wires you saw were just the test. When I make the new PCB, all it will require will be 3 solder points on the board total for the bios and memory card.

    edit: found pic

    Last edited by NeoTurfMasta; 11-01-2012 at 10:58 AM.

  15. #65
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    Quote Originally Posted by Razoola View Post
    No plans for unibios in CD games at this time. I see no point to be honest as the main features can be done with pc2neo including region switching. You can patch cheats in the game code directly instead of wasting cycles paching RAM.
    How do you do something like this? My biggest problem with the CD versions of games is that you get limited credits.

  16. #66
    Divine Hand of the UniBIOS
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    You do it by poking into memory the number of credits you want.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  17. #67
    Eager Beaver mastamuzz's Avatar
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    Quote Originally Posted by NeoTurfMasta View Post
    all it will require will be 3 solder points on the board total for the bios and memory card.
    that is user friendly! awesome B.

    NSM, MC board and the PC2NEO is all the love I need for the cd system, thanks guys!

    @ Raz & Mikew

    so basically the PC2Neo transforms a cd system into a Dev system making it incapable of running cd games right?

    @ NTM

    if that is correct about the system capabilities, could there be a switch to enable the original BIOS when needed for the new cdNBM?
    Last edited by mastamuzz; 11-01-2012 at 09:10 PM.

  18. #68
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    Quote Originally Posted by mastamuzz View Post
    if that is correct about the system capabilities, could there be a switch to enable the original BIOS when needed for the new cdNBM?
    I do plan on having a switch that will allow you to select the original bios. Depending on which way I got, it may require another wire to be soldered down.

  19. #69
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    Quote Originally Posted by mastamuzz View Post
    @ Raz & Mikew
    so basically the PC2Neo transforms a cd system into a Dev system making it incapable of running cd games right?
    The new bios contains both the original bios and the MVS dev Unibios on the same rom. A switch connected to the rom presents either the MVS or the original bios. The original bios has been enhanced to add the pc2neo features allowing either uploads from USB or normal CD loading. In MVS mode the NGCD behaves like an MVS system with the same capabilities as the universe bios with the added ability to upload code to all regions of memory.

  20. #70
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    Quote Originally Posted by Razoola View Post
    You do it by poking into memory the number of credits you want.
    But without a Universe BIOS for the CD, how do you do this?

  21. #71
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    Quote Originally Posted by Tempest View Post
    But without a Universe BIOS for the CD, how do you do this?
    By using the pc-2-neo capabilities which have been added to the original CD bios. This was not designed to be a Universe BIOS for playing CD games so you would need to know the memory regions you were modifying. On the other hand, if you use the MVS bios mode you can use the same in-game universe bios menu's assuming the game you have loaded fits in NGCD memory. This can be seen in the Puzzle Bobble video in this post.

  22. #72
    Divine Hand of the UniBIOS
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    After having short break from working on this we have got back to it. Some issues have been resolved and now we are getting speeds of 172kb/s. Its now much faster than loading from CD

    What we need to do now is finalise the PCB design, currently there is no way to attach a 2up neogeo stick at the same time so we need to add that in I feel. Once that's done I think it will be complete.
    THE UNIVERSE BIOS ( MVS / AES, and now also for CD )
    www.universebios.com. Also on facebook, please like http://www.facebook.com/UniverseBios.

  23. #73
    Thou Shalt Not
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    Good to hear you're still on it Razoola. Once it is complete this is going to be great

    Quote Originally Posted by goombakid View Post
    Gives me a reason to start actively looking for a Neo CD again. Awesome work, Raz!
    Totally signed. Can't wait for this!

  24. #74
    The Mad Jock. IDCHAPPY's Avatar
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    Yip, more excellent work buddy :-)

  25. #75
    Ukyo's Doctor
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    Great work Raz... looking forward to hearing more about this one.
    Might finally be able to make some use of the couple of old CD units I have in the loft with fekked CD drives.
    Last edited by rcantor77; 01-26-2013 at 04:15 PM.



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