Tutorial: Fujitsu FM Towns Marty with Lr-Mess

Zering

@zerojay My guess is I'm converting my .chds wrong. How do you do yours?

zerojay

@Zering Mine are already converted, they are the official MAME CHD set.

Zering

@zerojay Can I ask which version you are using?

zerojay

@Zering Pretty sure I'm on latest, 0.224 or 0.225, can't remember.

DTEAM

@zerojay

me it's 0.225 but works with 0.224

Zering

Brilliant, thanks to you both, I think I've found what I'm looking for.

While we're on the subject of MAME, can somebody explain what merged/unmerged mean?

astorga

You can find the explanation right here. According to the docs, you should stick with "full non-merged" sets.

Zering

@astorga That makes sense. Thank you.

DTEAM

If you want to play a good game on that system, try Genocide Squared. My personal recommandation.

Zering

@DTEAM I'll have to give it a go. I still haven't managed to set up the system, the chds I've found for 0.225 don't match the software lists for fmtowns_cd. But I will keep looking.

DTEAM

for those who are interested, 21 new dumps (oct 24th 2020). This hash file and games dumps are actives, to watch regularly.

Metro City

Hi, Is it normal that when I launch a game it gives me a solid white screen?

Folly

@metro-city

If you get a solid white screen then the loading procedure is not correct.
lr-mess probably can't find the bios file or you just don't use or load a .chd game that is in the fmtowns_cd.xml hash table (mame softlist).

I will advice you to use our project here :
https://retropie.org.uk/forum/topic/29682/development-of-module-script-generator-for-lr-mess-and-mame-standalone

After installing fmtmarty with this project you have better loader options to run your fmtmarty games.

Metro City

@folly thank you very much, I followed the guide you posted and it works now, but I notice that with my PI3B + it slows down, do you think I can solve it with the lr-mess2015 \ 2016? Thanks again

Folly

@metro-city

Nice to hear it's working.

The specs of RPI3B are on the low side for mame and lr-mess.
Besides, fmtmarty and fmtowns are quite demanding systems to emulate, even for the RPI4.

Though there are four things you can try.

Try to use frameskipping :
F11 -> show frameskipping status
F9 -> increase frameskipping from 0 to 10 or auto

You can also try to lower the resolution if possible :
Press a key when the loading dialog comes where you can switch emulators.
Here you will find the video settings that can be changed for the used emulator.

Also try to use regular cue/bin or iso files and load them with the -cdrm runcommand.
This should give you some speed improvement because .chd are compressed files.
So using them will use some more resources from the processor.

Overclock your RPI3 on your own risk, with these settings speed should increase 5% :
arm_freq=1350
over_voltage=5
sdram_schmoo=0x02000020
sdram_freq=500
core_freq=500
gpu_freq=400
temp_limit=80
avoid_warnings=1

lr-mess2015 \ 2016 isn't supported by our script.
You would have to make it possible by manually adding these into the emulators.cfg to make use of it.
Though, I doubt lr-mess2015 \ 2016 will run faster.

Metro City

@folly Thanks for the info, I'll do some tests. Listen, I use the N30 pro from 8bitdo and it makes me use the stick instead of the dpad, I found in the options how to change the settings, but do you know how to save in order not to have to repeat the operation again?

Folly

@metro-city

Where did you edit your controller settings ?
In the RetroArch GUI, the lr-mess GUI or the MAME GUI ?

Metro City

@folly ehm I'm not very familiar with these things, using lr-mess I don't see the retroarch menu but the classic blu mame menu.
in game, press "tab" open blu menu mame and fix setting controller, but like retroarch don't see "save or override".

Folly

@metro-city

Ok, you are in the lr-mess menu, changing the controller settings.
You should do it in input(this machine).
(The controller settings done here are on top of the RetroArch controller settings)
When you exit the game these settings are automatically saved, depending on what loader command you used.
The basename and cmd lines will store the config here :
/home/pi/RetroPie/roms/fmtmarty/mame/fmtmarty.cfg
The other lines, using the media addon and the run_mess.sh script, will store it here :
/opt/retropie/configs/fmtmarty/fmtmarty.cfg
Once stored all other games will use the saved config.

Using the game-specific loader will not use above config.
If you changed something, using such a loader, it will store the config in a subdirectory with the gamename, and is only loaded when you load that game next time.
It will store it here :
/opt/retropie/configs/fmtmarty/lr-mess/gamename/fmtmarty.cfg

If you want to go back to the default settings you can just delete such a config file.

bbilford83

Hi all,

I know this is an outdated method, and I have been using the great script described here to get various mess systems running. I want to give the Marty a shot, but I am confused as to what exactly constitutes a "Marty" game. I am NOT asking for roms, but from what I can understand, the Marty was backwards compatible with "almost" all FM Towns games - but does that mean both CD and floppy-based games, since the Marty had both drives? And is anyone aware of any list saying which games actually are compatible and which aren't? It also seems there are a few - maybe fewer than 10 - games that were designed specifically for/only compatible with the Marty, but I haven't been able to find what those where anywhere. I'd welcome any tips anyone who has this installed might have.

And sorry if I am asking this in the wrong place - I thought it would be more likely to get Marty-specific attention here. TIA!