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The '''PlayStation 4''' (PS4) is an eighth-generation console produced by Sony Computer Entertainment on November 15, 2013 and retailed for {{Inflation|USD|399.99|2013}}. It is the first PlayStation console to use the [[wikipedia:x86|x86]] architecture, a semi-custom 8-core AMD Jaguar CPU at 1.6 GHz. One of the cores is utilised separately only for low-power, background tasks. The CPU shares its place on an APU chip alongside a semi-custom AMD GCN Radeon GPU supported by 8 GB of GDDR5 RAM at 2.75 GHz, while 256 MB 256MB of DDR3 RAM is used only for background tasks.
Emulation of the PlayStation 4 will prove to be a monumental task owing to the complexity of x86_64 and the Radeon-based GPU. Most projects will inevitably end up going the route of [[Wine]].
|[https://github.com/Inori/GPCS4 git]
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==Overview==
===Potential Roadblocks===
Due to the PS4's x86 architecture and FreeBSD-based operating system, emulators for the device will by and large be very unconventional. Despite the x86's instruction set being '''huge'''<ref>{{cite web | url= https://en.wikipedia.org/wiki/x86_instruction_listings | title= x86 instruction listings | Wikipedia}}</ref>, a trait that would typically lead to years of development time by emulators, it opens the ability for pre-existing hypervisors to do the heavy lifting, eliminating the need for a recompiler. There is also, as of writing this, little to no documentation on the GPU (a modified Radeon 7970M with disabled stream processors) used in the PS4's APU, and it will require a complete re-implementation by emulator developers. End-users may wish to preform perform a preliminary dump of the required files from their PS4 using the [https://phi.nz/orbital/tools/dumper/ Orbital Dumper].
===PCSX4 & Fake Emulators===
* The obstruction of the download behind endless surveys. Emulator development nowadays gets its funding from [[Emulators on Patreon|Patreon]] or Google Play.
* It is actually fairly easy to fake a PS4 (and even [[PlayStation 5|PS5]]) emulator by taking the open source [https://git.sr.ht/~thestr4ng3r/chiaki Chiaki] Remote Play client, which works by streaming games from a real PS4, and modifying the GUI to display fake hardware usage stats alongside the game. If its claims of running any PS4 game in 4K at 60 FPS 60FPS with little to no issues really were true, there would certainly be news articles about it, just like there were for [[Cemu]].
* For any skeptic, the use of OGRE as a marketing tool is the smoking gun. OGRE is a video game engine, which developers would use to make games run on consoles. No one uses Unity or Unreal Engine to emulate a Switch. Claiming that OGRE somehow benefits emulation is a farce.
