# Atari ST

Computer - Lifespan: 1985 - 1993 {% embed url="" %} ## Information


Emulators	libretro: hatari libretro: hatarib hatari
Games Location	📁 roms \ 📂 atarist
File extensions	.st .msa .stx .dim .ipf .m3u .gemdos .zip .7z

## System Features

Retroachievements	Netplay	Controller autoconfig
lr-hatari: NO lr-hatarib: NO Hatari: NO	lr-hatari: NO lr-hatarib: NO Hatari: NO	lr-hatari: NO lr-hatarib: NO Hatari: NO

## BIOS

BIOS file	Folder	md5 hash / remark
tos.img	`\bios`	b2a8570de2e850c5acf81cb80512d9f6
emutos.img	`\bios\hatari\tos` `\bios\hatarib`
tos102.img	`\bios\hatari\tos` `\bios\hatarib`
tos106.img	`\bios\hatari\tos` `\bios\hatarib`
tos104.img	`\bios\hatari\tos` `\bios\hatarib`
tos206.img	`\bios\hatari\tos` `\bios\hatarib`

## Controls Use Pad2Key for this system if you need specific mapping, see the [Pad2Key ](https://wiki.retrobat.org/controllers/pad2key)section of this Wiki. Here is the default mapping.

Retrobat Button	Atari ST key (libretro)
START	Show/Hide virtual keyboard
SELECT	Toggle Mouse/Joy mode
D-PAD
Left analog stick	Directions (up, dow, left, right)
Right analog stick

	Mouse button B
	Fire/Mouse button A / press key in virtual keyboard
	lr-hatari GUI
L1	Toggle Num Joy
R1	Change Mouse speed 1 to 6 (for gui and emu)
L2	Show/Hide status
R2	Sound on/off
L3
R3

### **Hatari**

Retrobat Button	Hatari
SELECT	Open emulator menu
D-PAD	Joystick - D-pad
	Joystick - FIRE
F11	Toggle fullscreen
F12	Emulator Menu
ALTGr + Q	Quit emulator

## Specific system information ### Hatari emulator configuration RetroBat forces Hatari standalone to use the configuration file located in `\emulators\hatari` folder of the RetroBat installation. When making configuration directly within the emulator, ensure to configure it by using the .bat file provided:

{% hint style="warning" %} Standard hatari.exe stores the config file in "userdata" folder of windows, changes done in this file will not work when running from RetroBat. {% endhint %} ### Mounting a "gemdos" hard drive image Libretro Hatari-B core can automatically mount a "gemdos" hdd image within the emulated system. In order to do this, the hdd to mount must be stored in the roms folder :

Next, create an empty text file in the same folder, name it with the exact same name as the folder and save it with the .GEM extension:

Additionnaly, it is possible to make lr-hatarib automatically run one of the program stored on the mounted gemdos HDD image. To do so, create an empty text file in the roms\atarist folder that is named with the exact same name as the gemdos folder. In the file, specify the following information:

#EXTM3U
#AUTO:<name of the program to autorun>
<name of the GEM file>

Finally: save the text file with the ".m3u" extension and place it in the same folder as the image folder and the GEM file:

In this example, RetroBat automatically: * Launches hatarib and mounts the "The New Zealand Story" image in the emulated device * Runs the program RUNME.TOS from the mounted drive (program is located in `C:\AUTO`) {% hint style="warning" %} Running .gemdos folders requires the TOS version 2.06 or emuTOS. {% endhint %} [^1]: