@rkoster Raph, thank you so much for your patience and kind support. I really admire guys (of course people in general) who help others and care about things without any material or commercial background. I'll try to to my best to behave like this in the physical world (but I suppose you, too ;-)) I'll stick to your website and your posts and hope that we will hear from each other once in a while. I will keep reading about linux, the Atari Emulator scene and feel really good about what is happening these days with this bunch of possiblities I always dreamed of and which really came to life. I'm so thankful for this. At the end of the month I will visit old friends and we're having a Midimaze party (Midi Network Game for the Atari ST) like in the old days, I will present my MISTer unit and the GPI case and will tell people about your Atari graphics post for the Retropie Project. I'll be in the country over the weekend here in Brandenburg and hope that you and your familiy will have a great weekend, too! Again, thank you so much for everything Best wishes, Joern

Huh, changing that shouldn't have mattered, especially given that the game was originally NTSC! You might want to look at the script I wrote here: https://retropie.org.uk/forum/topic/22392/lr-atari800-5200-artifacting-basic-and-other-guidance/17 if you want to get hardcore on Atari800 emulation. Also might want my fixed build of the emulator, if you ever want to play anything that requires typing. https://retropie.org.uk/forum/topic/22460/fixed-ctrl-and-shift-on-lr-atari800

@PCKid The .cfg files don't go in the ROM folders. Remove the /home/pi/.atari800.cfg file, make sure you've copied the right BIOS files and then start a game.

@Dwarfboysim Sorry, it's the other way around, I'm using lr-atari800 not atari800

@bkumanchik The k is because you have loaded a "k-file," which is a specially optimized variant disk format for faster loading. It's generally noted in the game filename, like Zombies (1983)(Bram)(US)[k-file].atr It's a bit odd that you are in BASIC and see it, usually it goes away once you are in the game and it tends to be on games that are machine language. For those sorts of games, you want to disable BASIC. If your goal is to do some BASIC programming, I suggest finding a DOS 2.5 system disk, and booting to that with BASIC enabled. If your goal is to load a game and you are getting dumped to BASIC, I suggest disabling BASIC in the RGUI menu (Select-X, Options, set BASIC to disabled). I just posted a giant thread explaining most everything about Atari 8-bit emulation in Retropie here: https://retropie.org.uk/forum/topic/22392/lr-atari800-5200-artifacting-basic-and-other-guidance

@rkoster OK, thanks!

@PCKid Well, it's a big ask to get a computer to work fully with a controller, of course. There's no way to cover every possible mapping. The most common keys that you tend to run into include the number keys (ex: setting difficulty in Jumpman), space bar (Spelunker, as you mention), and Enter, but something like Star Raiders of course demands that you play with the keyboard, never mind all the text adventures or even just games that require that you type your name. The mappings in lr-atari800 are: L3 NA R3 NA L2 KEY SPACE R2 KEY ESCAPE L CONSOL_OPTION R TOGGLE UI SEL CONSOL_SELECT STR CONSOL_START A FIRE1/KEY RETURN IN GUI B KEY RETURN X FIRE2/KEY ESCAPE IN GUI Y VKBD ON/OFF So you do in theory have two keys free where you could put a couple more mappings without stomping something else. I haven't tried this, but you could go to the RGUI (Select-X) and mapping L3 and R3 to the extra keys you need, and then saving a Game Remap file (not a Core Remap, as that will map those keys for all games). But I haven't tried this to see if it works with the lr-atari800 core. You're almost certainly still going to need a keyboard attached for a lot of games.

@PolarBear123 BIOS files, just like ROMs, are copyrighted assets - they're not distributed with RetroPie and links and request for such items are not within the forum rules.

Depending on game, you may need to change the machine - some will work only on 400/800, 800XL (64) or 130 XE. Other thing that often helps is to "enable BASIC on boot" in options. Of course you need to have all the appropriate bioses in the right place/detected too.

@annomatik Where does it chance ?

@drmaxwell Are you using RetroPie ? Please give more details about your setup - https://retropie.org.uk/forum/topic/3/read-this-first.

@paulmdickey We really need to know more information about your setup. The required info is detailed at https://retropie.org.uk/forum/topic/3/read-this-first Take special care to note if you're using the Atari800 emulator, or lr-atari800.

I was struggling with the config file saving using lr-atari800. I uninstalled it and installed the regular atari800 emulator. Now the config file works. I also had to set the display to something I could see first. There are presets for the display that work fine.

Try quitting Retroarch after you change to Atari 800XL (don't go back to emulated system, just quit RetroArch and it will exit to ES, then start game again and it should work). I believe RA saves configs on exit. If this doesn't work then change to 800XL (or better set it to 130XE as it has 128kB of RAM) and select save core override in RA.

@davidgrohl Learn how to use SFTP or Samba-Shares. https://retropie.org.uk/docs/Transferring-Roms/#sftp https://retropie.org.uk/docs/Transferring-Roms/#samba-shares If using SFTP, go to /opt/retropie/configs/all/atari5200/retroarch.cfg, or if using Samba-Shares, go to configs/all/atari5200/retroarch.cfg. Add core_options_path = "/opt/retropie/configs/atari5200/retroarch-core-options.cfg" to the retroarch.cfg above the #include "/opt/retropie/configs/all/retroarch.cfg" line.

@mediamogul Reinstall did the trick, ta :) Still can't figure what the heck to do with XEX files, mind you.

@gpmcty You probably figured this out a long time ago but the config file is in the /opt/retropie/configs/atari800/ folder.

Hi everybody, I finally found the reason. Unfortunately I MOVED the ATARI 800 games from one installation to another. Though there were no roms present in the Atari800 the emulator did not show up in emulationstation.