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Linux Mame Arcade. Ryan Whallen and Beth Garrett EKU, CEN/CET. OUTLINE. We attempted to make a Video Game Emulator, on a Linux system. This had rarely been done before. Thus making Linux have Hundreds of games. MOTIVATION. To make a retro arcade machine We had the parts already.

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Linux mame arcade

Linux Mame Arcade

Ryan Whallen and Beth Garrett

EKU,

CEN/CET


Outline
OUTLINE

  • We attempted to make a Video Game Emulator, on a Linux system.

  • This had rarely been done before.

  • Thus making Linux have Hundreds of games.


Motivation
MOTIVATION

  • To make a retro arcade machine

  • We had the parts already.

  • To see if Linux can run Mame.


Introduction
INTRODUCTION

  • Had a Arcade Machine in Storage.

  • Wanted to see if we could get Old Games to play on it.

  • Researched how other people had done this.

  • Made our own Modifications.


What we needed
What we needed.

  • Needed to make the joysticks work on a pc.

  • Install more Buttons.

  • Retrofit Monitor and Speakers into cabinet.

  • Needed to make Mame work on Linux.




The bridge
The Bridge

  • Every Button had a line to a 40 PIN IDE Cable.


Connecting to the computer
Connecting to the Computer

  • The KE72 Input Device took the place of a Keyboard.

  • Each PIN on the IDE Cable was now a key on a keyboard.

  • The KE72 Plugged Directly into the PS/2 Keyboard Port.


Programming the ke72
Programming the KE72

Using a uploading program on the CD with the KE72 and With a txt file and these commands your able to make your own keyboard.

Sample:

IN01:[F1]

The Button on Input Pin #1 will act like the F1 key.

After uploaded, the KE72 can be plugged into any pc and remember your configuration, until you upload a new file.


What is Mame?

  • MAME stands for Multiple Arcade Machine Emulator

  • It can emulate most arcade hardware ranging from the very old to the moderately new

  • It allows you to access multiple games at one time, which makes it ideal for arcade cabinet projects

11


PROPOSED SOLUTION

  • Originally AdvanceCD was going to be used, but it proved to be difficult to set up properly and was very picky about hardware

  • Instead we went with Xubuntu (Ubuntu Linux with xfce window manager) since numerous sites about making Linux arcade cabinets seem to prefer it the most

12


PROPOSED SOLUTION

  • We tried many different MAME programs for linux, including:

  • gmame

  • xmame

  • advmame

  • But the individual configuration and compatibility seems to be best with advmame, so we chose it for our emulator

13


PROPOSED SOLUTION

  • We also started with a very old PC (Pentium 2 based), that turned out to actually not be powerful enough for our needs, as it lagged heavily under Xubuntu and even in the console running only MAME

  • We switched to a more recent Athlon 64 desktop PC, which proved to be better, however…

14


PROPOSED SOLUTION

  • The Radeon x800 inside the computer was not fully compatible with the things we needed to do to autorun MAME

  • It’s core was not supported by framebuffer drivers, causing MAME to crash

  • We tried an Nvidia card, the card from the old machine, and a different Radeon card, but all had the same issue

15


PROPOSED SOLUTION

  • Due to this, we did not autostart MAME using only xserver, as it needed framebuffer support

  • There was also a bug that is present across all recent versions of Ubuntu…

16


PROPOSED SOLUTION

  • This bug was in how the tty1, tty2, etc. configuration files were understood by Ubuntu

  • The default script syntax was changed, but if you manually edit the files to mimic it, it ignores your changes and causes errors

17


PROPOSED SOLUTION

  • You have to basically script “backwards”, placing commands before they are normally supposed to be used in order to get around this bug

  • The scripts we used mostly relied on editing things such as .bashrc, which loads the desktop after the user is automatically logged in

18


PROPOSED SOLUTION

  • The autologin was accomplished using mingetty, and the event.d file for tty1, the first terminal console

  • This was done so the user would not need keyboard access at the arcade cabinet to login, saving time and removing the need to accommodate for a keyboard in the structure of the cabinet

19


Results
RESULTS

  • Murphy's Law threw us some good curve balls, but we prevailed.


Conclusions
CONCLUSIONS

  • Learned more about Linux.

  • Learned how to hack Controllers.

  • Learned a lot from helping my fellow classmates.


Future work
FUTURE WORK

  • Playing more with The KE72. (I have two driving simulators in storage.)

  • Making more Arcade Cabinets and then Selling them.


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