o2em emulator on raspberry pi
Introduction
o2em requires liballegro. To install it:
$ apt-get liballegro4.2-dev
I am going to install o2em on a raspberry pi.
Sometimes ago I had bought a raspberry pi. I was then seeking another goal. The project I then had did not succeed, so this marvellous piece of technology was lying in a shoe box under my old CRT television set.
A raspberry pi model B, 2 pads, good old TV set. All I need to get a videopac / odyssey 2 playing in my living room is to install an emulator.
Sometimes ago I had bought a raspberry pi. I was then seeking another goal. The project I then had did not succeed, so this marvellous piece of technology was lying in a shoe box under my old CRT television set.
 |
| good old television set |
A raspberry pi model B, 2 pads, good old TV set. All I need to get a videopac / odyssey 2 playing in my living room is to install an emulator.
I thank smoothifier for his very kind message and for having given me the idea to turn this raspberry pi into a videopac / odyssey 2 emulator. To say it shortly, I tried and as I managed, I'm going to tell you how.
OS
As I really tried many tunings on my raspberry pi, I decided to start from blank. So I started by downloading NOOBS 1.4.0. . I installed raspbian. Then I made some basic customizations:
- network
- overclock settings at 900 MHz
- timezone
- keyboard
- enable ssh access
Recompilation
$ apt-get liballegro4.2-dev
I didn't know if I needed liballegro4.2-plugin-jack, I avoided doing anything and for the moment it seems ok.
Then, I followed my post install o2em on linux and-recompile it section 2. I placed source files in /home/pi/o2em118src and I installed binary files in /home/pi/o2embin directory.
Installation
I copied binary files resulting from compilation into o2embin:
- o2em
- dis48
I created a directory called bios and copied the french videopac C52 bios file that can be downloaded from here : The old computer (Last file from the list)
Then I installed a rom file set coming from here : emulvideopac-rom001.tgz .
Launching o2em
You must have X11 started to launch o2em. So enter the following commands in an xterm.
$ cd o2embin
$ ./o2em
produces a minimal message :
O2EM v1.18 (Jan/2007) - UNIX binary
Free Odyssey2 / Videopac+ Emulator - http://o2em.sourceforge.net
Created by Daniel Boris (c)1996/1998
Developed by:
Andre de la Rocha since version 0.80
Arlindo M. de Oliveira since version 1.16
type o2em -help
$ o2em -help
produces a help message that I cannot completely see on my TV set because it is too long . The Esc key enables to get the help window away.
$ o2em vp_14.bin
launches the game 14 "duel".
$ o2em -fullscreen vp_14.bin
launches the game 14 "duel" in full screen.
If you have 2 joypads with your raspberry, as I do :
$ ./o2em -s1=3 -s2=3 -fullscreen vp_14.bin
enables to play using the pads instead of the keyboard.
Whatever are your preferred options, you acn record them once for all in a file named o2em_def.cfg. This file must be placed in the binary directory (/home/pi/o2embin). My o2em_cgf file contains:
# PVentrillon configuration 1
fullscreen
s1=3
s2=3
This enables to launch the emulator with a simpler command :
$ o2em vp_14.bin
Deactivate the screensaver
@xset s off
@xset -dpms
Conclusion
Here is the result. We could believe be back to the 80's. Actual odyssey 2 joystick would achieve to make the feeling complete.
You must have X11 started to launch o2em. So enter the following commands in an xterm.
$ cd o2embin
$ ./o2em
produces a minimal message :
O2EM v1.18 (Jan/2007) - UNIX binary
Free Odyssey2 / Videopac+ Emulator - http://o2em.sourceforge.net
Created by Daniel Boris (c)1996/1998
Developed by:
Andre de la Rocha since version 0.80
Arlindo M. de Oliveira since version 1.16
type o2em -help
$ o2em -help
produces a help message that I cannot completely see on my TV set because it is too long . The Esc key enables to get the help window away.
$ o2em vp_14.bin
launches the game 14 "duel".
$ o2em -fullscreen vp_14.bin
launches the game 14 "duel" in full screen.
If you have 2 joypads with your raspberry, as I do :
 |
| The raspberry pi and 2 pads |
$ ./o2em -s1=3 -s2=3 -fullscreen vp_14.bin
enables to play using the pads instead of the keyboard.
Whatever are your preferred options, you acn record them once for all in a file named o2em_def.cfg. This file must be placed in the binary directory (/home/pi/o2embin). My o2em_cgf file contains:
# PVentrillon configuration 1
fullscreen
s1=3
s2=3
This enables to launch the emulator with a simpler command :
$ o2em vp_14.bin
Deactivate the screensaver
While playing, you will probably be annoyed by the screensaver. It is triggered after 10 minutes and replaces the display by a black screen.
This is not compatible with playing arcade games.
I found information on how deactivating the screensaver in this news thread : screensaver .
To make it short, i just added the following lines to the file /etc/xdg/lxsession/LXDE-pi/autostart:
@xset s noblank@xset s off
@xset -dpms
Conclusion
Here is the result. We could believe be back to the 80's. Actual odyssey 2 joystick would achieve to make the feeling complete.
 |
| o2em working |
Making o2em work on raspberry pi has been easier than I first thought. Next step will be to try jo2emlauncher on raspberry pi.
