Atari 7800

Hi,
I love Retrobat and I've been using it for several years for its simplicity even if it often makes me 'pissed off' because it is often too rigid and does not allow the average user to make small changes that can make ALL games executable. For the Atari 7800 the Prosystem core of Retroarch and the A78 core of the Bizhawk emulator are provided as emulator (which I consider really useless but it's a personal consideration) while Mame is completely missing which should appear in almost all OLD systems both in the core version of retroarch and in the standalone version. I'll give you a practical example... for this system there are 2 homeware games like 1942 and Donkey Kong XM that are not executable by the pre-established emulators but work regularly with the two versions of Mame. Is there a way to insert / replace the mame / mame libretro core for this system too? I tried but I always get an error message.
Thanks for the help

Adolfo

Hello

Just to know : why are not doing this on the reverse side : place theses games in the Mame folder ?

It's not clear to me if yours is a sarcastic joke...
I tried this solution anyway but, as said, it doesn't work from retroarch while if I try to start it from the command line the game runs.
<name>atari7800</name>
   <fullname>Atari 7800</fullname>
   <manufacturer>Atari</manufacturer>
   <release>1986</release>
   <hardware>console</hardware>
   <path>~\..\roms\atari7800</path>
   <extension>.a78 .bin .zip .7z</extension>
   <command>"%HOME%\emulatorLauncher.exe" -gameinfo %GAMEINFOXML% %CONTROLLERSCONFIG% -system %SYSTEM% -emulator %EMULATOR% -core %CORE% -rom %ROM%</command>
   <emulators>
     <emulator name="libretro">
       <cores>
         <core>prosystem</core>
       </cores>
     </emulator>
     <emulator name="bizhawk">
       <cores>
         <core>A78</core>
       </cores>
</emulator>
<emulator name="mame64">
       <cores>
         <core>a7800</core>
       </cores>
     </emulator>
   </emulators>
   <platform>atari7800</platform>
   <theme>atari7800</theme>
 </system>

I don't know if you're doing something wrong or it's impossible to edit the basic installed configurations.

Hello,

This will not work, at the moment we have not declared the a7800 machine in the list of mess machines for mame.

Hi, thanks for the reply,
is there a particular reason why it is not possible to use Mame for this system? is this rigidity of editing a system valid for all systems? do you have to stick only to your configurations without having the possibility of modifying them? I ask these questions because this topic is very close to my heart... there are games for example for Colecovision that work ONLY with the Final Burne NEO core which is not among the emulators chosen by you... is it possible to collaborate with users who use this program to avoid these inconveniences?

Hello,

All non-arcade systems in MAME are managed through specificities in our code, required to get the machineName, and we did not add them all, we only focused on old computers mainly as game consoles have other emulator options.

The same applies for FBNEO, and any emulator requiring "subsystem" specificities. It's not as easy as just editing the es_systems file, it requires also proper routing in RetroBat's code.

And by the way : normally colecovision should work with libretro-fbneo as this is an available core for this system.