Z80 shared library including some nice test-projects
Complete, Fast, Accurate, Game Boy/CGB/SGB Emulator.
Gameboy Advance emulator for Android phones
ACPU Emulation and Design
NES emulator for Android phones
Gameboy and Gameboy Color emulator for Android phones
z390 Portable Mainframe Assembler and Emulator
Atari emulator for Android phones
PSX emulator for Android phones