This is a program written in C intended to emulate the old Space Invaders Arcade Cabinets.
Just running make should work. Though I have not tested this on Windows but I am relatively positive it should work fine on there as well.
./emulator invaders.rom
This emulator requires a rom file to run, they are typically broken up into invaders.e, invaders.f, invaders.g and invaders.h. To create a rom file from this you have to run the command
cat invaders.h > invaders.rom
cat invaders.g >> invaders.rom
cat invaders.f >> invaders.rom
cat invaders.e >> invaders.rom
to get the file you need for the emulator.