SI is a primitive, but simple Space Invaders emulator.

It was written some time ago (1998 - 2000) as a way to learn more about low level programming and CPU architecture.
The original target of the program was MS-DOS, so it may need some changes to run on a modern OS.

The entire code is written in pure C and should be pretty straight forward to understand.

Copyright 1998 - 2009 Jens Mühlenhoff <j.muehlenhoff@gmx.de>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.