Adding gaming support for the xv6 OS.

As term project of the course Operating Systems.

There is a user-mode game "snake" as demonstration, accepting both keyboard and gamepad input.

make qemu
$ snake

additional dependencies

sudo add-apt-repository ppa:grumbel/ppa
sudo apt-get -q update
sudo apt-get -q install xboxdrv
sudo apt-get -q install python-virtkey

then

sudo make xbox-daemon
make qemu
$ snake

if does not work, try sudo killall python sudo killall xboxdrv

Tested only with Microsoft X-Box 360 pad (USB 045e:028e).

For details, please refer to our wiki and the original README file.

By Bin Liu, Yonghe Wang, Zhaoyang Li, Zizhao Zhang, June 2016.