MGL Files With the NeoGeo Core?

galopin
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MGL Files With the NeoGeo Core?

Unread post by galopin »

Hi,

I generate some MGL files to get the Neo Geo games into an organized folder like the arcades can be ( alphabetic, per year, etc ). I have all the MGL in the right place and shows in the menu as intended, but I can't get the actual MGL to load a game. The core launch and quickly end up on a `Z80 error` message.

Example of MGL:

Code: Select all

<mistergamedescription>
<rbf>_console/neogeo</rbf>
<file delay="1" type="f" index="1" path="games/neogeo/mslug.zip"/>
</mistergamedescription>
If I start the core manually and then load the rom there, the game run fine. What could be the problem ?
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Re: MGL Files With the NeoGeo Core?

Unread post by KremlingKuthroat19 »

What romset are you using? I use a darksoft set and in that case the MGL files load if you just include the folder name. Otherwise, I can't help you out there unfortunately. Check this out though: https://github.com/wizzomafizzo/mrext/b ... geo-mvsaes It says here that the extension should be .neo
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neogeo81
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Re: MGL Files With the NeoGeo Core?

Unread post by neogeo81 »

Why no use this script to automatically create a games folder?

https://github.com/wizzomafizzo/MiSTer_GamesMenu
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Re: MGL Files With the NeoGeo Core?

Unread post by aberu »

Try adding more delay.
birdybro~
galopin
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Re: MGL Files With the NeoGeo Core?

Unread post by galopin »

neogeo81 wrote: Mon Nov 14, 2022 3:09 pm Why no use this script to automatically create a games folder?

https://github.com/wizzomafizzo/MiSTer_GamesMenu
Because the script does not work somehow for me on neogeo games, it creates just a few weird entries.
It works for other platforms tho, but even so, it only replicates the physical folders, so i will also tackle that later to create that "organized" multi view
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Re: MGL Files With the NeoGeo Core?

Unread post by galopin »

Ok I figured it out, I tried a few variation of path, and it appears the neo geo core load only and only if the path is in the form of ../../games/NEOGEO/rom.zip. I would have rather use absolute paths, but for now, I am happy. Path that did not work I tried first were /games/NEOGEO/rom.zip and /media/fat/games/NEOGEO/rom.zip. I have also not look at if it is a case issue, the sd-card uses exFat so should not matter.

Attached is a zip to inflate in your _Game folder if someone else want to give it a try. The next step will be a _All folder and symlink from there into the organized structure. I used the mame 0.249 XML DB found here https://www.progettosnaps.net/dats/MAME/ for the data generation since I did not know about the core having his own romsets.xml at first.
Attachments
_Neogeo.zip
neogeo MGL shortcuts per letter range, per year and per manufacturer
(237.85 KiB) Downloaded 4 times
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wizzo
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Re: MGL Files With the NeoGeo Core?

Unread post by wizzo »

The games menu script definitely won't work for this, it currently only supports game in the .neo format. The neogeo core's github has instructions for how to convert common packs to this format if you want to go that route: viewtopic.php?f=23&t=5672

But you're also right that it's not going to do quite what you want. It doesn't categorise the games, only mirrors their current folder layout. I've got some plans in the future to support both these things but it's pretty low priority so not for quite some time.

I think aberu is right, it's probably a matter of tweaking the mgl args either the delay or path. Mgls hook into mister's existing game loading stage, it should work with the right settings. If you want to try with an absolute path, the best way is to put "../../../../../" in front of it
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Re: MGL Files With the NeoGeo Core?

Unread post by wizzo »

Tron303 on discord was also working on something to make proper game names and sort them by category. You can get a database with all the neogeo mgl files premade here: https://github.com/tron303/db

This can go in your downloader.ini:

Code: Select all

[tron303/db]
db_url = https://raw.githubusercontent.com/tron303/db/db/db.json.zip
For example: "_Games/_SNK Neo Geo MVS & AES/_Maze/Irritating Maze, The.mgl"

It currently relies on the .neo format files though. But could still save you a lot of time.
Attachments
rn_image_picker_lib_temp_b4948b90-c5b1-4de4-b1dd-dfe88134b8bb.jpg
rn_image_picker_lib_temp_b4948b90-c5b1-4de4-b1dd-dfe88134b8bb.jpg (675.14 KiB) Viewed 592 times
galopin
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Re: MGL Files With the NeoGeo Core?

Unread post by galopin »

If I understand well, wizzo you are the one behind the game menu script ? Definitely not a fan of the "put a bunch of parent folder traversal to hit the root" suggestion :roll:

I got it working now as I said above, and I am fine with using my own. It is interesting to see people sharing such things with a json db for the downloader script, maybe I will deploy mine when I am satisfied with the result. The Mame XML did not have a genre field, but I am sure it is just a matter to find a proper source.

I will continue to work on it since I want to also extend it for SNES,GB(C|A) and Megadrive at least. I also want to add some rom validation by checking the SHA1 if possible

On a side note, Is there any benefit to the NeoSD file packing for neo geo roms compared to let say a zip ? It is not like the core stream data during execution, It is cold loaded. Is the compaction better ? Could Mame still load such a rom (I guess not) ? I would rather also skip having to handle a custom format to inspect the ROM SHA1 ( as I intend to do as well ), maybe it is not too bad anyway, but I have not see a file specification ( on a limited few google searches )
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Re: MGL Files With the NeoGeo Core?

Unread post by wizzo »

You are describing a significant amount of work. I look forward to you publishing it
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Re: MGL Files With the NeoGeo Core?

Unread post by galopin »

wizzo wrote: Tue Nov 15, 2022 2:23 am You are describing a significant amount of work. I look forward to you publishing it
It is fairly light work if I can find a DB with the right informations to mine from. Kind of no pressure coding compared to my daily work :)

It is to toy with the mister until I have actual time to dig into learning how to do actual stuff with a FGPA ecosystem.
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Re: MGL Files With the NeoGeo Core?

Unread post by wizzo »

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Re: MGL Files With the NeoGeo Core?

Unread post by neogeo81 »

Yeah just use the .neo files
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Re: MGL Files With the NeoGeo Core?

Unread post by aeronius »

A little late to the party but this works for me. My games are stored on my SD card, so you'll need to adjust the pathing if your structure is different.

Code: Select all

<mistergamedescription>
<rbf>_console/neogeo</rbf>
<file delay="1" type="f" index="1" path="../../../../media/fat/games/NeoGeo/mslug"/>
</mistergamedescription>
I can't recall which set I'm using, but my folders look like this:
structure.png
structure.png (5.25 KiB) Viewed 103 times
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