fMSX is a famous emulator of the MSX, MSX2, and MSX2+ 8bit home computers. It runs MSX/MSX2/MSX2+ software on many different platforms including Windows and Unix.
It has been first written by Marat Fayzullin, and later Vincent van Dam ported it on SDL.
Here is a port on GP2X of the version 2.7.0.40 of fMSX-SDL from Vincent van Dam that ZX-81 had previously ported to PSP.
It’s distributed under Marat Fayzullin’s license for the original MSX part, and under GNU license for all the GP2X part.