MAME is a multi-purpose emulation framework
Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc
An experimental Symbian OS emulator
Binary Analysis Platform
Researching Wii U emulation
Yet another system region and language simulator
DeSmuME is a Nintendo DS emulator
A simulator for the Multics dps-8/m mainframe
Dynamips on MinGW
All information from hardware sensors on your Mac
DirectX 1-11 to OpenGL wrapper
An open source interactive disassembler
Scriptable frontend for media applications.
Rom and video validator for CoinOPS under OSX.
Apple1 Emulator for the terminal with cut and paste.
A GBA emulator for Mac OSX