GnGeo - v20210814 with *.gno support! #369
Replies: 9 comments 14 replies
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Where are we to copy the GNO files on the device? The instructions are currently unclear. Edit: Oh! The GNO files are used in place of the ZIP ROM files. They're not a complementary cache, they are the ROM. Now I get it. So they go in "/mnt/roms/NEOGEO/". |
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When trying to change/configure the buttons, the emulator currently crashes. What are the config text file settings to set the controls (so we can still customise them by editing the config file directly)? Edit: Never mind, figured that out, too: 😉 a_btn 2 0=nothing, 1=A, 2=B, 3=C, 4=D By editing the config file (either the main config file, "gngeorc", or the game-specific one) directly, you can set the controls. |
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is there a way to assign the coin button? |
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Select is the coin button, @Sakitoshi. You press Select then Start to start a game. |
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Also, only home/console mode is supported. Arcade mode won't work. Is there any benefit to running arcade mode for Neo Geo games? |
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that's the thing. it doesn't work for me on the 20210814 version. the 20210731 version is fine. |
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Yep, that's the case -- it's BIOS specific -- see below. 👍 👇
Ah, I see! :o Don't forget that GnGeo also allows you to save the game's state at any point, and load from it. So this is another way to have unlimited continues (that wasn't present on the original console/arcade machines). ;) |
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The issue with only "Console" mode is related to UNIBIOS, every other flavor of purely Arcade BIOSes should play normally like MVS machine. This bug has long history dating back to when it was ported by original author of GnGeo (@pepone42) to GCW0. |
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I'm using the first BIOS in the list, the "MVS Asia/Europe v6 (SP-S3)", and I've had no problems playing the games. I must admit, I'm confused now what constitutes as the "console mode", and what the "arcade mode". Have I been playing arcade mode without knowing of the existence of the console mode? If so, then this emulator/build works fine with arcade mode, too. It all depends on the BIOS used. 🤔 |
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Oh, the console-only support/problem is exclusive to UNIBIOS! Now I get you! :D So it's not that the new build doesn't support arcade mode, it's that the UNIBIOS doesn't. Nods. Switching away from UNIBIOS allows arcade mode play. |
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yes, i've been investigating the issue and arrived at the same conclusion. unibios doesn't like gngeo coin button. |
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little update: with unibios 1.2 and below the coin button works. |
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I found link almost *.gno rom have been converted by Steward-Fu. |
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How do I convert my roms to the .gno format in windows? |
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You can create live usb linux. Need not to install on hardware, version client debian will boot faster and smaller size iso. |
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Unfortunately, the source for gngeo_20210814.zip has been lost, we're left with part of src in v20210731 - the latter has less games decrypted, what following table may suggest: Additionaly there is a modded GnGeo emulator - called RK (also without src) with even more games supported with GNO and COMBO hotkey for fighting games, the main menu is in Chinese. Download link - rk_20210903.zip and compatibility table: |
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It's fortunate that GnGeo is one of the least troublesome emulators on the platform. But this is terrible news if things change in the future, and we need to update GnGeo. |
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Does anyone have a .GNO rom pack or the converter? |
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The whole gngeo repository seems to be deleted. I have managed to download the releases from archive though. Also can anyone help me compile gngeo from source. I have tried compiling on Arch but failed. I need it to convert roms to .gno file. |
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Very nice, thanks @Apaczer! |
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GnGeo 2021-8-14 changelog:
support for fast GNO format ROMset
show FPS/CPU usage
added default V-SYNC for video render
no need for BIOS & game_data (already compiled within binary itself)
new BIOS menu option to pick between 29 different versions
support for per-game configs (e.g. button mapping & bios)
D/L link: in Emulators section on main page
Introduction:
The GnGeo is an AES/MVS Neo Geo emulator (without NG-CD support) based of MAME ROMsets.
This emulator natively supported GNO files, but that function was commented out somehow for Miyoo along the road, so now it was brought back to functionality with this new revision by @steward-fu
What is *.gno ROMset file?
It is a combination of decrypted ROMs' files and BIOSes (partly encrypted). In short they are fast cache files, compering to *.ZIP ROMsets.
Why would you want to use GNO files instead of ZIP?
GNOs loading time is 5÷10 times faster in GnGeo emulator and thus it can easily handle larger ROMsets (thanks to lower RAM usage).
The emu is trying to fit the entire unzipped ROM in memory while executing the game (decrypting the encrypted data), which explain the long load times with ZIP files and why anything larger than ~40Mb is prone to crashes on Miyoo devices (in that case use *.gno ROMs)
What is directly built-in BIOS feature?,
You can set now different BIOS for each game and pick it directly from emulator's menu.
There are 29 BIOSes in total (for full list, refer to the FBA-a320 emulator). Remember to save settings after selecting and restart the GnGeo before the new BIOS can be applied.
How do I acquire *.gno ROMsets?
You need to convert original ziped files to .gno using GnGeo build for windows/linux/osx system (any platform with more RAM available). Just add "--dump" to your executable parameters in CLI.
Example:
./gngeo -i /my_roms_folder --dump mslug3Thorough explanation down bellow.
Compile GnGeo on Unix and create GNO files:
gngeobinary from /src/ folder and move it to /gngeo.datgngeo --dump [romset_name]romset_name.gnofile from /gngeo.dat/ folder and copy to your handheld (it will only work with gngeo v20210728 revision or later!)GnGeo build under arm64 Unix systems: gngeo_Linux_arm64.zip
You might need some additional libraries to compile properly gngeo. For running binary
libsdl1.2-devshould suffice on Debian distros.List of working GNO dumps (by steward-fu)
Button mapping
The button remapping feature support all kind of different combinations of inputs, for now you have to set those manually in config files -
/mnt/.gngeo/gngeorcglobally or per-game in/mnt/.gngeo/romset_name.cffor e.g.a_btn 1; b_btn 2; x_btn 3; y_btn 4; l_btn 5; r_btn 6, where number correspond to arcade's one or set of inputs as below:ISSUES:
NOTES:
To acces individual BIOS menu, after game launch press B+A+Y (on V90) when you see splash screen.
The default config sets to Universe BIOS v1.3 with CONSOLE / EUROPE mode. To simulate ARCADE machine with coins, use any other working BIOS (excluding UNIBIOS 1.3 and its later revisions).
If you are loading the game from GnGeo's LOAD GAME feature instead of gmenu2x , you will also need to add to romlist [] = {"/romset_name.zip", "/romset_name2.zip",..}
src miyoo - v20210731 (final code not available, use this instead)
src master 1 - https://github.com/linuxlinks/gngeo
src master 2 - https://github.com/sflores12/gngeo
other src:
https://github.com/pepone42/gngeo/
https://github.com/yoyofr/iNEOGEO/
GnGeo coding log - https://steward-fu.github.io/website/handheld/trimui/gngeo_gno.htm
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