PlayStation 5 enthusiasts have long awaited backward compatibility with PlayStation 3, and it appears their wishes are being fulfilled. Since early 2022, Sony has been progressively adding ports from PS1, PS2, and PSP to its latest console, and now, rumors suggest that PS3 compatibility may soon follow.
It’s important to note that the challenges in porting games from the PlayStation 3 stemmed from its unique architecture and the CELL processor. Transferring the complete library of games from the console to the PlayStation 5 was not straightforward.
Last month, initial reports surfaced about Sony developing a PlayStation 3 game emulator. Recently, details of a new patent filed on June 27 for a technology that assesses backward compatibility of software in asymmetric mode were leaked online. This seems to directly reference the CELL processor, which allocated tasks across multiple cores.
This method enables the device to operate in a synchronization test mode that deliberately induces asymmetry, possibly linked to the CELL processor’s approach of distributing tasks across individual cores, unlike the unified approach of modern x86 chips. The use of a compatibility layer for the PlayStation 5 that introduces asymmetry may simply be a means to facilitate the running of PlayStation 3 games on the latest generation console.
While many patents do not always lead to enforceable products, it is evident that Sony has been increasingly active in the realm of backward compatibility. Notably, last month, the company expanded the PlayStation 5 classics catalog by adding PlayStation 2 games, supported by a brand new emulator.
Whether Sony will succeed in creating a PlayStation 3 emulator is still uncertain. However, it’s noteworthy that despite initially dismissing the idea of porting PlayStation 2 games at the start of the PlayStation 5 era, Sony eventually started adding them to the PS Plus subscription.
