In 2008 Zerofrog left the team and minor changes were made to the emulator by the two remaining coders, Refraction and Saquib, to keep the project alive. During summer 2007, GiGaHeRz managed to get the Netplay working, an area no other member of the PCSX2 team dared to venture into. He also rewrote the VU and EE recompilers, which lead to huge speed boosts in version 0.9.1, released July 2006. Zerofrog later joined the team and developed the ZeroGS and ZeroSPU2 plug-ins. These improvements slowly increased the speed and compatibility of PCSX2. The implementation of the first recompiler was made by Goldfinger and improved speed greatly compared to the older interpreter, which was slow by design. After that was accomplished, the team started to focus on implementing missing parts of the emulator and replacing hacks with correct emulation as they started to understand those areas. Once the team got the BIOS to run, it was slow and graphically distorted. The team started working on emulating the PlayStation 2's BIOS, which proved to be extremely difficult to accomplish.
Many revisions later and with lots of plug-in development, the PCSX2 team managed to get some games into loading screen, and even in-game footage for other games.
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Other coders later joined the team and they eventually managed to get simple PlayStation 2 homebrew software and games to run. Windows Vista / Windows 7 (32bit or 64bit) with the latest DirectX CPU: Intel Core 2 Duo 3.2 GHz or better OR i3/i5/i7 2,8 GHz or better OR AMD Phenom II 3,2 GHz or better GPU: 8800gt or better (for Direct3D10 support) RAM: 1GB on Linux/Windows XP, 2GB or more on Vista / Windows 7ĭevelopment of PCSX2 began in around 2001 by Linuzappz and Shadow, who were coders for the PlayStation emulator, PCSX. Windows/Linux OS CPU: Any that supports SSE2 (Pentium 4 and up, Athlon64 and up) GPU: Any that supports Pixel Shader model 2.0, except Nvidia FX series (broken SM2.0, too slow anyway) 512MB RAM (note Vista needs at least 2GB to run reliably) The emulator is incompatible with PlayStation games. Additionally, PCSX2 requires a copy of the PS2 BIOS, which is not available for download from the developers, due to the copyright concerns and legal issues associated with it. Different plug-ins may produce different results in both compatibility and performance. These are the graphics, audio, input controls, CD/DVD drive, and USB and FireWire (i.LINK) ports. PCSX2, like its predecessor project PCSX, is based on a plug-in architecture, separating several functions from the core emulator. Although each CPU can be emulated well, accurately synchronizing the CPUs is very difficult.
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The main bottleneck in PS2 emulation is emulating the multi-processor PS2 on a PC x86 architecture.
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In its latest stable release, many PS2 games are playable, and several games have full functionality. PCSX2 is an open-source PlayStation 2 (PS2) emulator for the Microsoft Windows, Linux and OS X operating systems.