***
![zx81](https://user-images.githubusercontent.com/22881403/41500759-734cd052-715d-11e8-9177-2732ee91152c.png)
***
_The ZX81 is a home computer released by Sinclair in 1981.  It was designed to be a low-cost entry computer for the general public.  It sold 1.5 million units by the end of it's life._
***

| Emulator | Rom Folder | Extension |
| :---: | :---: | :---: |
| [lr-81](https://github.com/libretro/81-libretro) | zx81 | .p .tzx .t81 |

## Emulator: [lr-81](https://github.com/libretro/81-libretro)
This emulator can be installed from the experimental menu of the [RetroPie-Setup script.](Updating-RetroPie#using-the-retropie-setup-script)

Due to a bug in the emulator, you will have to set Player 2's controller type to "Sinclair Keyboard" in order to send inputs.

## ROMS

Accepted File Extensions: **.p .tzx .t81** 

Place your ZX-81 ROMs in:
```
/home/pi/RetroPie/roms/zx81
```

## Controls

lr-81 utilises Retroarch configurations.

Add custom retroarch controls to the retroarch.cfg file in
```shell
/opt/retropie/configs/zx81/retroarch.cfg
```
For more information on custom RetroArch controls see: [RetroArch Configuration](RetroArch-Configuration)