It exactly like the official atari800 core. From my memory can check later .Hit esc or f1 i thinks. Then go to system/find system rom and choose the folder that contain the bios.returnto main settings and save setting. Restart core. Rom/ bin should boot.
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Ok, thanks, I’ll try it AS soon as I get home from work… Maybe some QIX is in my future ! Been looking forward to this one for a while.
If you think of anything else I need to do, please let me know, I have been battling this one for a while and would love it just to work !
Thanks, that is the same version I found above.
If you can think of anything else on setting up the BIOS in RetroArch, let me know, or is it just setting up the Directory > System/BIOS when in the core ?
I build it today from my github so it can t be the same : )
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confusing… got to the point to find the system rom, can now load load game from Load Content menu of retroarch. but keeps coming back to test mode. went into Run Atari program, and it wont allow changing to previous directory, awaiting better integration of this to in retroarch/libretro…
I will look at later
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Looking over the files, they have not been updated in over a year 
but, I will update the file I dropped into RetroArch cores folder already (teamviewer is awesome)
Thank you so much ! So Excited to play 5200 again… One of my all time fav Atari systems
Thanks for the links, i’ll try this later on
If you look at the commit ,in my github,the libretro one is only a fork of it. i fix windows build today.
For the folder pb, before i lookat, you can also use an atari800.cfg to setup the rom but it not as simple as the builtin gui. I have no windows to test for now. But i bet wine can do the job.
I can test it for you if you want. I am runnning WIndows 7 x64 that I am using it on…
I am using Emulation Station for my front end. So I am looking for something so I can run the roms via that.
What do you mean by the atari800.cfg ? Do you have an example so I can see the formatting ? Do I need to do that for each game ?
I forgot to define dir separator for win so now it shoud allow to browse outside the current dir.
i cross compile a win build with the last commit here
awaiting better integration of this to in retroarch/libretro…
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The Atari 800 core works?
This golden nugget of info may have just made my night. One of those few systems I haven’t gotten working.
The closest thing in the MAME/“MESS” core I got working was the GX4000 but the screen was all tiny as hell. lol
Ho, i forgot to add the A5200 key this version should handle them.
for the few test i have done , i’m not familiar with A5200 as i use this core for a800 games , so when i start an 5200 game (in my case QIX (1982) (Atari) [b2].bin a 32K cartridge) screen is black , i have to hit a key ,then menu ask me for the format of cartridge , if i choose 2chip 16k 5200 cartridge then the title screen of the game appear . i have to hit F4 to start game.
yes it works, but like all other port I did , It is considered rough and wip.
But it does not bother me, at least I quiet with the complaints of the users
For Gx4000 i use libretro-arnold port , not mame.
BTW QIX is a good game but i prefer the arcade version of Volfied
“Libretro-arnold”? I’ve never seen that core.
Man I am getting all sorts of greatness from this thread.
Didn’t work for me. After going from Emulation Station, I picked QIX… started, black screen, hit a keyboard button, got a beep, then after another button, I got the Emulation Window (giving me all the options to select), Selected 2 chip 16K 5200 cart, backed out, selected back to emulator and it gives me a EMULATION HAULTED and the message that I needed an official Atari system/OS to run…
Sigh… Would this be how run each game ?
finally spent the time to test @r-type atari800 core. here are some quick notes.
- Load any atari800 or 5200 with Atari800 3.1.0 core. does not matter if your game does not work, we just need to be able to enter the menu.
- when game is loaded, press F1 (this is quick-menu, just cancel or press F1 again or whichever is your quickmenu hotkey) - this will show you Atari800 menu(use joystick/gamepad to navigate. On Xbox 360 controller. button B is OK while Y is back. if nothing is working, go to quick menu-Controls and choose ATARI Joystick for User 1 Device Type
- While im Menu, goto Emulator Configuration -> System ROM Settings then Find ROM images in a directory
- Locate your atari5200 and atari800 bios roms. these roms have to be uncompressed. -Atari400/800 - atariosb.rom -XL/XE - atarixl.rom -Basic - ataribas.rom -5200 - 5200.rom Once rom folders are set, press SPACEBAR to save location. 5.go back to Emulator Settings and then choose Save Configuration file.
- goto quick menu and close content.
- By this time, you can now play games. do note that the games has to be extracted and uncompressed too. You can use Load Content method in Retroarch. if you load a compressed rom, your game will not play and you are stuck in Self Test mode.
- When you do load a game, and see only black screen, just press Enter or OK on your gamepad.
BUG-after initial configuration, program seems not able to go to previous folder […], so using the Run Atari from menu is not usuable.
Tested on Windows 10 x64
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Nice, you got it working… I had -0- luck on Windows 7 x64…(wellthe 800 emulator ran, the menu came up but, could not load a 5200 game)
The question I have… is it possible to save the settings ?
At this point, I could care less about the Atari 800… I want to play 5200 and I want to play the 5200 solid with my Xbox 360 controller(there is enough buttons for everything besides the keypad).
Getting kind of upset with every option including the Atari 800 not working. I gave this one a shot…
And it worked…but, 1/2 the games don’t play. And of course, the ONE game I wanted to play QIX, didn’t play… Is there a better core to use with this (now that the BIOS is in the right place)?
So, most games that have the blinking Atari logo on startup (Atari games) they kind of lock up there. Other games that do play, get a min or 2 into a game then lock up (system not locked up, the GAME locked up).
I used mame_libretro.dll (one I found and dropped in)