Coleco romset woes.

[Vealmike]

Hi,
I'm having problems getting colecovision working on my Rpi 4 using FBNeo as an emulator.

I believe the issue is the romset version I have.
Looking at the FBNeo .dat file
( https://github.com/libretro/FBNeo/blob/master/dats/FinalBurn Neo (ClrMame Pro XML%2C ColecoVision only).dat )
I see:

	<game name="aquatacka" cloneof="aquatack" romof="aquatack">
		<description>Aquattack (Alt)</description>
		<year>1984</year>
		<manufacturer>Interphase</manufacturer>
		<rom name="aquatacka.1" size="8192" crc="7f33f73a"/>
		<rom name="aquatacka.2" size="8192" crc="8f3553eb"

Yet the only romset I can find has a single rom file per game in this case:
Aquattack (1984) (Interphase).col at 16Kb.

Is there a search term that I can feed Google to track down the correct romset version? I know we can not post a link to the files, I'm not asking for that. I'm asking how I determine what romset version FBNeo requires.

Or, alternatively, is there a tool that will split the 16KB file into two 8KB chunks. It's very likely to be the same data, with the two ROMs bundled into one blob.

Or, alternatively, alternatively (these options get progressively less pleasing), is there a tool that I can use to determine the CRC of the Aquattack (1984) (Interphase).col file that I do have? I can then modify the .dat to get FB Neo to use game files I do have.

TLDR: I can't find the right Romsets, please educate me on how to search, or help me use what I can find.

[Folly]

@vealmike

You might want to search for :
coleco fbneo romset

Make sure you also add coleco.zip in the same directory.

[mitu]

I'm asking how I determine what romset version FBNeo requires.

You found the DAT file already, if you want to make sure it's the right one, update FBNeo from source so you get the latest version (to which the DAT file from Github corresponds).
Alternatively, the RetroPie install script copies the DAT file for the installed version to /opt/retropie/libretrocores/lr-fbneo/dats.

Or, alternatively, alternatively (these options get progressively less pleasing), is there a tool that I can use to determine the CRC of the Aquattack (1984) (Interphase).col file that I do have? I can then modify the .dat to get FB Neo to use game files I do have.

That's not how it works, if your ROMset is not what fbneo expects (2 files with correct checksum), then the game it will not work.

[Folly]

@vealmike

Just what @mitu said, the .col file will not work with FBneo.

[Vealmike]

@folly
Searching for "coleco fbneo romset" has led me to a site I hadn't tried. Thanks. I'll give their files a go

@mitu
Thank you. For curiosity only now...
I thought the .dat told the emulator which files to use and what the checksums should be. It was my understanding that the emu loaded the files in the .dat and verified that the file and .dat checksum matched.
If the checksums matched, then the emu tries to run the rom(s).
Do I have that wrong?

[mitu]

@vealmike said in Coleco romset woes.:

Do I have that wrong?

Yes, the DAT file info is baked into the emulator, it doesn't need the DAT file to run. Modifying the .dat file has no effect on how the emulator validates the romsets.

[Vealmike]

@mitu
Understood & (re)educated. Thank you for your time.