PCSX2 is a PlayStation 2 emulator for Windows and Linux, started by the same team that brought you PCSX (a Sony PlayStation 1 emulator), with continuing contributions from open source developers.
PCSX2 is one of very few fully functioning PS2 emulators available today, with both high
... [More] compatibility and high performance. Many games still emulate slowly due to the inherent complexity of the PS2's architecture, but on whole the emulator is functional and enjoyable.
PCSX2 has changed repositories a few times over the past year. Code metrics for contributions made from 2005 to 2008 can be found at the following Ohloh pages:
MAME is a multi-purpose emulation framework. MAME’s purpose is to preserve decades of software history. As electronic technology continues to rush forward, MAME prevents this important "vintage" software from being lost and forgotten. This is achieved by documenting the hardware and how it
... [More] functions. The source code to MAME serves as this documentation. The fact that the software is usable serves primarily to validate the accuracy of the documentation (how else can you prove that you have recreated the hardware faithfully?). Over time, MAME (originally standing for Multiple Arcade Machine Emulator) absorbed the sister-project MESS (Multi Emulator Super System), so MAME now documents a wide variety of (mostly vintage) computers, video game consoles and calculators, in addition to arcades. [Less]
MESS is a MAME-based project which documents the hardware for a wide variety of (mostly vintage) computers, video game consoles, and calculators through software emulation, as MAME does for arcade games. As a nice side effect to this documentation, MESS allows software and games for these hardware
... [More] platforms to be run on modern PCs.
The goal of MESS is total accuracy to the original hardware behaviour, which is achieved through low-level emulation of all hardware components (video chips, CPUs, etc.), the implementations of which are shared across all emulated systems using the generic MAME architecture. [Less]