version 2.25b
    2.25b
    PGM
    Added Knights of Valour Super Heroes. Thanks to KOFBOBO and the rest
    of peole in BOBO KOV WORLD ( for the donation
    of a PGM motherboard and game Cart for kovsh to extract the protection program.
    Added Martial Masters
    Added The Killing Blade (only Rev 109 works)
    Added internal protection program for Photoy2k， removed simulation.
    NEOGEO
    （两个小时之后，就可以看正常章节了）
    Fixed kof2002 and Matrimelee drivers
    CPS1
    Fixed CPSQ & CPS_Extra dat files
    GENERAL
    Added some cheats， transparency tables and tracklists.
    2.25
    NEOGEO
    Updated drivers. Thanks to Wesker， MR-J and the rest of people
    in speksnk.net boards
    Unlocked games up to New Power Instinct Matrimelee
    Fixed garou raster effect missing in pre-battle talk
    Added proper neopcm2 decryption
    NEOGEO-CD
    Some code has been rewritten to improve compatibility. Now
    more games should work (although there are still some problems).
    Added an option in the Emulation menu for direct load of neocd ISO
    or CD.
    PGM
    Added Knights of Valour 2 and Knights of Valour 2: Nine Dragons. Thanks
    to HappyASR for the help getting the dump of the internal cartridge
    cpu program. Due to the extra processor required to emulate， the game
    will require a more powerful PC to run. Also savestates won't work.
    (Internet ranking mode for kof2nd has been intentionally disabled).
    Music speed in kov2/kov2nd is a bit off.
    Fixed wrong sprite zoom and shrinking (required for kov2nd)
    Fixed sprite priorities handling (required for kov2 & kof2nd)
    Added protection for PhotoY2k.
    CPS2
    Updated drivers. Thanks to Wesker， MR-J and the rest of people
    in speksnk.net boards
    2.24
    NEOGEO
    Fixed all the neogeo roms to match MAME romsets (Thanks to
    Wesker from Speksnk for the work).
    Fixed kof98 protection (delete old kof98.srm files from
    your config folder)
    GENERAL
    Added HQ2x plugin (includes src in plugins\hq2xsrc.zip)
    2.23d
    NEOGEO CD
    Fixed broken neogeo CD in the previous version
    Fixed some protection issues in Soccer Brawl， I hope
    it also fixes the Disc I/O errors.
    PGM
    Fixed broken pgm support in previous version
    GENERAL
    Hopefully fixed the .dat files
    2.23c
    CPS2
    Added new cps2shock xor tables
    Added 'Crouching Tiger Hidden Dragon 2003' game.
    NEOGEO
    Fixed some problems with multislot emulation when there were
    empty slots between 2 used slots.
    Synced game drivers and bios names with latest MAME.
    2.23b
    CPS2
    Added Mighty! Pang (Japan 001011)
    Added Super Street Fighter 2 (ETC 930911)
    NEOGEO
    Added Jockey Grand Prix. The sound program rom is
    encrypted， so I've used vliner as parent and took
    its m1 rom while we get a decrypted dump.
    GENERAL
    Added a new frameskip code， it should perform better on slower
    machines
    2.23a
    GENERAL
    Fixed the NOREPEAT flag not working in winamp jukebox lists.
    2.23
    CPS2
    Added 1944: The loop master (US 000620)
    GENERAL
    Improved the winamp jukebox feature， check the sample.trk file
    in TRACKLST for an explanation.
    2.22a
    Seems that the 2.22 version was leaked before release
    with some bugs in the main core and the d3d plugin so
    I've named this version as “a“ to avoid confusion.
    GENERAL
    Added a Winamp jukebox option. Be careful as it's a
    bit different than how Kawaks works. You'll need to create
    a music mapping table (check the sample kof98.TRK file in
    TRACKLST directory) and nebula will replace the
    sound codes you indicate by the mp3/cd track/ogg/wav/...
    you specify in that file. You must have winamp running
    before loading a game that you created track lists for.
    The option to enable/disable it is in the Sound menu.
    It only works with Winamp 2.x.
    Improved the video plugin interface to support rendering
    plugins.
    Added a preliminary graphics renderer based in Direct3D. I highly
    recommend using it if you want to run in 32 bit desktop
    or play rotated games (19xx，dimahoo) as it is a lot
    faster than the Hardware Blit one in these cases.
    Also it has some projection features and any bright
    scanlines. Scanlines doesn't work well with rotated
    games.
    You'll need a video card with the following features:
    - non square textures
    - non power of 2 textures
    - textures bigger than 256x256 pixels (sorry， no voodoo)
    NEOGEO
    - Fixed “Step Frame“ button in the shots factory
    - Added King of Fighers 2001 driver
    CPS1
    - Fixed “Step Frame“ button in the shots factory
    - Fixed Mega Twins music speed.
    - Fixed missing sprites in Forgotten Worlds
    - Fixed games crashing on 32 bit desktop
    CPS2
    - Added Marx Matrix drivers.
    - Fixed wrong flash frames in MvsC.
    - Fixed some Dimahoo cheats not working (from
    the latest Mike_Haggar cheat collection file)
    - Fixed games crashing on 32 bit desktop
    2.21b
    GENERAL
    Fixed a severe bug in the startup code that caused nebula
    to allocate huge amounts of RAM for absolutely no use on
    startup. This was causing crashes in WinXP/2k and wrong
    graphics decryption in big neogeo games.
    CPS1
    Fixed crashing in Punisher in the 2nd stage boss.
    CPS2
    Improved VBlank timing. Fixes some problems with SFA3.
    NEOGEO
    Added support for the Universe BIOS. Go to Game->Neogeo Options
    and enable “Use Universe BIOS“ to load it. The bios must be in
    a zip named uni-bios.zip (in the ROMS folder) and the rom
    MUST be named uni-bios.rom. When using universe bios， all neogeo
    options and cheats in nebula will be disabled， use the bios built-in
    region， machine type and cheats options. When using universe
    bios you'll see garbage during initial tests， don't worry， that's
    normal and doesn't cause any other problem.
    Fixed slowdowns in s1945p.
    GENERAL
    Fixed crashings if you have more than 4 joysticks connected.
    2.20
    CPS2
    Fixed some sprite/BG desyncs in Gigawing.
    Fixed SFA3 crashing with latest Mike Haggar's cheats.
    CPS1
    Added a bunch of SF2 hacks (not all fully working though).
    GENERAL
    Added highscore saving for CPS2 games. Not all games are added yet.
    Almost all CPS2 games are supported， and some CPS1 too.
    It will use an external database to store the highscore data.
    You can convert a MAME Hiscore.dat file to nebula's internal DB
    with the command “nebula -hiconv“ having the hiscore.dat file in the
    nebula dir， it will build HISCORES.DB in the HISCORES dir. You should
    delete all the .HI files to avoid problems when you change the HISCORE DB.
    To turn off hiscore saving， just delete HISCORES.DB from the HISCORES dir.
    1.19c
    CPS1
    Fixed all CPS1+QSound games crashing after load.
    CPS2
    Added new decryption tables
    - Giga Wing (US 990222)
    - Giga Wing (Japan 990223)
    1.19b
    NEOGEO
    Fixed Fatal Fury 2 protection not working
    Fixed VLiner not working
    Fixed Alpha Mission 2 missing sounds
    Added 6 slot support for Multi slot MVS emulation.
    Added Bangbead encrypted romset.
    CPS2
    New xors
    - Megaman 2: Power Fighters (US 960708)
    - Street Fighter Zero 2 Alpha (Asia 960826)
    - X-Men: Children of the Atom (Asia 941217)
    CPS1
    Fixed wrong tiles on 1st floor of Magic Sword
    2.19a
    PGM
    Fixed gfx glitches in Dragon World 2
    Fixed zooming (very noticeable in dragwld2 intro)
    Fixed missing parts of some sprites (KOV flashes)
    CPS1
    Fixed some remaining music speeds...
    NEOGEO
    Fixed Garou missing animations (esp. some Grant moves).
    Select button should be working in all games now (not only garou).
    Added the game slot switch button to switch games
    forwards (key 9=switch backwards， key 0=switch forwards)
    GENERAL
    Fixed (hopefully) Romcenter Dat generation.
    2.19
    PGM
    Added Dragon World 2 (it has some gfx glitches due to some missing parts in
    the protection emulation)
    Text layer should now be correctly aligned (it was 1 line too high)
    CPS2
    Fixed ssf2xj timing that was still wrong.
    NEOGEO
    Fixed small autoanimation problems
    Added neogeo multislot MVS emulation.
    Usage:
    in the rom loading screen， you'll see a dropbox to
    select in which neogeo slot you want to load the game.
    Just select the slot and hit load， then after loading a
    game， you can go and load another in a different (or the
    same， overriding it) slot.
    Note that you'll need a lot of RAM to hold all games in
    memory at the same time.
    To switch from game to game， use the button mapped as
    Button 5 in the input options (default key 0)
    The current bios supports 4 game slots.
    The default bios config only allows to switch games after
    inserting a coin. To change it， press F2， go to “set the soft
    dips“， then “setting the cabinet“， and change “Game selection“
    to “Free“.
    Using savestates with multislot games may have unpredictable
    results.
    ALWAYS LOAD IN THE 1ST SLOT FIRST.
    2.18b
    NEOGEO
    Fixed some sound timming issues with long samples (Dandy J stage in wakuwak 7)
    Switched the memory card format to MAME one (old memcards still work).
    CPS1
    Fixed slow music in pang3 and megaman.
    2.18a
    NEOGEO
    Fixed mslug3nd driver crashing nebula.
    Fixed kof99d driver. now it loads the decrypted C roms instead of
    the prototype roms.
    2.18
    PGM
    Improved sound volume (checked with Z80 volume tables).
    Improved music speed (checked with real sound samples. Thanks to BillyJr).
    Fixed some wrong objects in KOV.
    CPS1
    Fixed incorrect music speed in some games (still some remaining)
    Dipswitches in all CPS1 games were wrong. They are (should) be
    correct now.(remember that CPS1 dips are changed in the Cheats menu)
    Fixed some sprite clipping problems.
    CPS2
    Added Vampire Hunter 2 and the rest of the latest CPS2Shock releases
    NEOGEO
    Fixed garou select button
    Fixed garou 3rd Terry stage background animation (requires rasters enabled)
    Fixed garou random character selection.
    Fixed sound problems in ssidekicks4 and neobomberman
    Improved raster emulation with the info from the real HW.
    Now nebula should not complaing about wrong ng-lo.rom files.
    Fixed sound problems ninja combat， ninja commando and others. Big thanks
    to Acho A. Tang.
    Fixed KOF94 Japan stage intro.
    Recent neogeo games have been locked. You should go to an arcade
    if you want to play them.
    Fixed kof2knd C7 rom (seems that only I had that rom)
    Added an additional sengoku3 romset for the new P1 (it's not
    clear what's the correct one).
    ND romsets no longer use the encrypted P roms， they are
    fully decrypted.
    GENERAL
    Added an option to auto switch to Fullscreen after loading a ROM (Misc menu)
    Corrected Nebulaconfig looping in the options screen.
    2.17
    PGM
    Improved sound emulation:
    Volume should be correct (or almost) now.
    Note pitch improved.
    Fixed missing background in a KOV stage.
    Added an option to capture the current music to a file
    to load it in jukebox (PZM files).
    Calendar is disabled when netplay or recording movies. This
    will (should :)) avoid desyncs.
    CPS2
    Fixed some finish specials being wrong in the bottom of
    Manhattan stage in mshvsf.
    CPS1
    Fixed missing helicopters and buildings in cawing.
    NEOGEO
    Fixed (again) sengoku3 decrypted driver.
    Fixed Irritating Maze controls. You can use the mouse to
    move the rod (this game cabinet has a trackball).
    Fixed missing 2 lines at the bottom of the screen of games
    using rasters (most noticeable in mslug2， galaxyf， mosyougi)
    GENERAL
    Added some language translations (Italian， Korean， Chinese， Dutch)
    Fixed 50% scanlines at 640x480
    Added a “Step Frame“ button to the shot factories (window mode)
    Added some Force Feedback tables by Iron Man.
    Added a small skin option to the windowed GUI. Any PNG file in
    the SKINS folder will be randomly chosen and displayed in the
    nebula window on startup when no game is loaded.
    IMPORTANT!! I've received a lot of mails asking about neo-geo.rom，
    ng-lo.rom and ng-sfix.rom. Those are the neogeo bios and MUST be
    ZIPPED in a file named NEOGEO.ZIP in the ROMS folder (or any roms
    folder you have configured).
    2.16
    PGM
    Z80 is fully emulated， that means， correct sounds and music
    in games. The sound chip emulation is not 100% accurate so
    some notes in music are wrong. I've added an option to disable
    the music in the Options menu.
    Fixed savestates in KOV games.(old savestates will still not
    work， only new ones will be correct).
    Fixed text layer position being wrong by 1 line.
    Added shot factory (F8)
    CPS2
    Fixed a palette sync problem that caused part of the charlie
    stage in sfa2 flash out of sync.
    Scanlines in 640x480 are now correct (again). Use No stretch go
    get them correctly.
    NEOGEO
    Fixed sengoku3 decrypted driver.
    GENERAL
    Added language switch for the menus (check the english.lng
    file in the skins dir for a template for translation)
    2.15a
    PGM
    Fixed Knights of valour missing platform and bridges in some
    stages.
    Some rom renamings. To match mame names
    sango1 -> kov
    sango1_5 -> kov115
    sango1_9 -> kovplus
    orlegend -> orlegend (the same)
    orleg112 -> orlegnde
    orleg12e -> orlegndc
    Fixed china and taiwan regions swapped in KOV
    NEOGEO
    Fixed savage reign V2 rom CRC
    Added Sengoku3 and Zupapa neogeo drivers.
    GENERAL
    PGM resolution is very wide， so if it's cut in the
    screen， play a bit with stretch options till you can
    get it fitting.
    2.15
    PGM
    Added Knights of Valour and Knights of Valour Plus
    (see KOVROMS.TXT for the correct roms CRC and sizes).
    Special thanks to BillyJr for his help to get this
    game running.
    Added Sound emulation. Well， it's not complete emulation， but
    it's enough go get sounds working. Only SFX works and some
    sounds may be wrong.
    Added region switch to orlegend and kov
    Fixed orlegend crashes.
    NOTE: PGM games have a very wide resolution so
    double size modes (scanlines and most image enhancement
    modes) require resolutions higher than 800x600 to work
    properly with no stretch.
    GENERAL
    Fixed netplay crashing with Konami and PGM games.
    2.14b
    CPS1
    Fixed wrong layer offsets in sf2yyc and kouryu (=blackbelt?) that
    appeared due to the new timing.
    Fixed Quiz and Dragons USA gfx problems
    Fixed sound problems in ADPCM audio (oops， my fault， I
    left some test code inside).
    GENERAL
    Fixed Nebula hanging in a window when exiting a game
    in the classic GUI.
    Fixed the Video menu crash if there are no transparency tables in
    the CONFIG folder.
    2.14a
    CPS1
    Fixed loops in some drivers (cworld2j， qad and qtono2)
    that were causing the rom scanning crash
    2.13a
    NEOGEO
    Fixed Spinmasters gfx errors on the bottom lines (raster bug)
    CPS1
    Added SF2 KouRyu driver
    CPS2
    Improved CPU timing. That makes SSF2T/SSF2X smoother.
    Fixed SSF2X driver (no more gfx or sound problems)
    PGM
    Fixed crashing after a few minutes playing.
    GENERAL
    Added SuperScale blitter (similar to a *Scale blitter
    of other CPS2 emu :)). It looks great and it's very
    fast (if not the fastest) image enhancement mode. Full source included.
    The best blitter in nebula without any doubt. It only works
    in 16-bit desktop modes.
    Added auto-transparencies. It will make flickering objects
    and meshes become transparent without blur. The 50% frame blend
    blitter is no longer needed. Unlike sprite transparencies，
    this will cause a performance hit， so better don't enable it
    if you have a slow computer.
    Fixed full interpolation mode.
    2.13
    NEOGEO
    Improved raster effects emulation.
    Most games are correct now， and others
    have been greatly improved:
    mosyougi title
    ssidekicks pitch (still not 100% correct but
    heh， at least you can see it)
    samsho3 “3D“ floor effects
    wheroes floors
    karnovr floors
    mslug3 last boss red sky distortion
    galaxyfight better alignment
    CPS2
    Added latest CPS2Shock releases
    Fixed wrong layer prios on nwarr character
    selection screen.
    KONAMI & CPS1
    Fixed music speed that was wrong in some games.
    PGM
    Optimized sprite drawing (more than twice
    faster now in some critical parts)
    Fixed sprite shrinking
    Added sprite zooming
    Added linescroll (orlegend stage 4 and 6)
    Fixed some missing sprites (clipping problems)
    Main CPU is running at the correct speed now
    GENERAL
    Added DSP plugins support (including a DSP
    wrapper for winamp plugins. It's still beta
    so be careful， and don't change the plugin
    while a game is running)
    The plugin.h file has been update with the
    DSP plugin interface.
    Force feedback support is disabled as I'm
    improving it (and it's still not finished :()
    2.12
    CPS1
    Fixed dynasty wars romset names
    Fixed sprites disappearing.
    NEOGEO
    Fixed mslug3nd romset.
    GENERAL
    Fixed Scanlines when using 640x480.
    2.11
    KONAMI
    Added Bucky O'Hare
    Fixed Zooming.
    Fixed some sprite gfx problems (2nd level boss
    in moo)
    CPS2
    If you are only seeing 2 buttons in CPS2 games
    delete the .dat file for that game in the
    CONFIG folder.
    CPS1
    Added SF2 YYC hack
    NEOGEO
    In the ROMDATA folder you'll find a
    file called Neogeo.new. Delete the
    Neogeo.dat and rename the .new to .dat
    to use the new MAME rom names.
    It's a good moment to remember that if
    you have nebula reporting missing neo-geo.rom
    ng-sfix.rom or ng-lo.rom， you'll need to put
    the neogeo.zip file (BIOS) in a roms
    directory (folder).
    GENERAL
    Fixed Vertical games not displaying anything.
    2.1
    KONAMI
    Mooooo!!
    BUG FIXES
    Fixed old GUI crashing on start
    Fixed title bar corruption
    Fixed Aspect ratio with Keep aspect option
    Fixed vertical games on 32 bits desktop.
    Fixed ingame menu letters when using 32 bit
    color depth
    Fixed xmvsf crash on start bug.
    Added shot display on Rom List when moving
    with arrow keys
    Added a Switch to Fullscreen option in the
    Video Menu， as some people didn't know how
    to switch to fullscreen (ALT-Enter)
    Added many transparency tables. Thanks to
    Darksoul， Bad_crc， Razoola， kyo_99 and
    Ken_Masters.
    Some things I forgot to mention in the readme:
    - To use the old gui， you can also launch:
    Nebula.exe -classic (-window if you want to
    run it in a window))
    - You can click on the column names in the rom list
    to sort the list using that column.
    2.0
    GENERAL
    Lots of changes in this version， but the most
    noticeable one is the new Window mode
    GUI (You can still use the old GUI). Note that
    the window mode will workin systems with 32 bpp
    desktop color depthbut only Hardware blit will work.
    If Nebula runs very very slow， try disabling stretch and
    Switching to system memory allocation.
    Due to the big amount of changes I'd recommend
    that you read all the docs.
    Some keys behave differently in window mode GUI
    check the GENERAL doc.
    Major rewrite of the main core. All systems
    emulation have experienced a speedup and
    the memory requirements have been lowered
    a lot.
    New shots factories， that allows changing almost
    every parameter/sprite. Please， read the doc about
    this.
    New macro code， that allows macros to work without
    knowing the character addresses and also adds
    “global“ macros that can be used with any character
    (read macros documentation).
    NEOGEO
    Added 4-point interpolation for Delta-T samples.
    Added a decryption progress indication for
    latest (encrypted GFX) games.