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VampireBuddha Hungry dinosaur from Ireland Relationship Status: Complex: I'm real, they are imaginary
Hungry dinosaur
Feb 4th 2019 at 2:26:24 AM

That is not how backwards compatibility works.

The PS4 uses a slightly modified AMD 64 CPU and Blu-Ray discs, but can also play DVDs.

The PS3 uses a a Cell processor; like the PS4, it runs games off Blu-Ray, and can also play DVDs.

The PS2 uses its own proprietary RISC... thing, and runs games off DVD.

The PS1 uses an off-the-shelf R3000 CPU, and runs games off CD.

The Emotion Engine used in the PS2 has a CPU that implements the MIPS III instructin set, which is fully backwards-compatible with MIPS I used in the R3000. This, coupled with the fact that DVD players are designed to be compatible with CD players, means the PS2 implements PS1 compatibility in hardware, so PS1 games work automatically bar a few edge cases.

Cell is also RISC, but uses the POWER instruction set, which is not fully compatible with MIPS. This means that backwards compatibility has to be done in software - in other words, through an emulator. Early PS3 models did include a full Emotion Engine for PS2 compatibility, but this was removed in later revisions as a cost-saving measure.

And then AMD 64 is CISC, which is fundamentally different to the RISC processors used in previous consoles; it's actually the sort of thing that's in your PC. CISC and RISC instruction sets differ at a very fundamental level, and so again, backwards compatibility has to be achieved in software. This means that if, as is likely, the PS5 also uses x86, it will be able to emulate a PS4 in hardware, but PS3 and earlier will have to be done in software, and writing a PS3 emulator is no small task; not only that, but the PS3 is a decently powerful computer, so it will need a whole lot of RAM and CPU power to operate. (The PS1 and PS2 already have decent first-party emulators, so they can reasonably be ported and should be able to run comfortably on the PS5).

Also, the Rerez guys suspect that the PS5 won't have a DVD player, just Blu-Ray. This would mean that you won't be able to insrt and run a PS>4 disc; rather, it's more likely that those games will be offered as digital downloads.

Feb 4th 2019 at 3:45:09 AM

PS 5 won't have a DVD player, just Blu-Ray
I think that is unlikely, the cost of a DVD lens is extremely negligible and if they really want to push backwards compatibility they will need it.

BadWolf21 The Fastest Man Alive
The Fastest Man Alive
Feb 4th 2019 at 4:56:18 AM

Also, every commercial Blu-Ray player is capable of playing DVDs. No reason to leave it out unless Sony has a new physical format they’re trying to push (unlikely).

LeGarcon Blowout soon fellow Stalker from Skadovsk Relationship Status: Gay for Big Boss
Blowout soon fellow Stalker
Feb 4th 2019 at 5:13:06 AM

Disks are probably going to be on the way out soon though for physical games. You can't pull data off a disk fast enough to play modern games, which is why you have to install your games on the PS 4's hard drive even if you have a disk.

Cartridges work much better and we'll probably see more of them like the Switch has.

Oh really when?
VampireBuddha Hungry dinosaur from Ireland Relationship Status: Complex: I'm real, they are imaginary
Hungry dinosaur
Feb 4th 2019 at 5:17:39 AM

[up]That's why one version of Microsoft's new XBox won't have a disk drive.

[up][up]True enough. What about the laser?

Feb 4th 2019 at 5:22:42 AM

We'll be back on cassette tapes before you know it.... that or maybe laserdisc has a chance to shine again!

Feb 4th 2019 at 3:20:08 PM

[up][up][up][up][up][up]Thats not what the patent is describing. The patent is talking about creating a virtual machine to run the software, not designing the Ps 5 to run the discs natively - you cannot patent that.

You're not running the software on a Ps 5, which can read ps4 discs and software, and run the files on it. You are running it on a Ps 4, the Ps 4 just happens to be digitally recreated inside the Ps 5. They can also digitally recreate a ps3, a ps2 and a psx. Significantly less advanced machines, and thus, far easier to digitally recreate.

Feb 5th 2019 at 2:59:23 PM

@ qwigly That is how I interpreted what I read as well.

Redmess Redmess from Netherlands
Redmess
Feb 19th 2019 at 6:12:40 AM

Samsung will no longer make blu-ray players for the US.

Will this have consequences for what media the next Playstation will use? It seems like blu-ray is not particularly popular.

BadWolf21 The Fastest Man Alive
The Fastest Man Alive
Feb 19th 2019 at 6:14:07 AM

Blu-Ray is a Sony product, so probably not.

TargetmasterJoe Much more than meets the eye! from The City, USA Relationship Status: I like big bots and I can not lie
alekos23 Spook from Spook
Spook
Mar 16th 2019 at 2:32:30 AM

Does anyone else have a sharp drop in connection speeds for other devices when the PS 4 connects to the internet?

Spoooooook
Redmess Redmess from Netherlands
Redmess
Mar 16th 2019 at 4:36:20 AM

Not that I know of, but it might have to do with how much bandwidth your PS 4 is guzzling while updating. If you have a router, you can limit the bandwidth use for it's IP address there.

I would also not let it update by itself if it causes that much trouble.

TargetmasterJoe Much more than meets the eye! from The City, USA Relationship Status: I like big bots and I can not lie
Much more than meets the eye!
ReikoKazama Badger Pride! from Tasmania, Australia Relationship Status: He makes me feel like I have a heart
Badger Pride!
Mar 17th 2019 at 6:37:28 AM

Has anyone had their console outright lie to them? Mine told me "cannot upload" in regards to a gameplay video I was putting on YouTube after the bar had gotten all the way to the end, but, well, if you check my channel the video's there...

You might belong in Hufflepuff, where they are just and loyal/Those patient Hufflepuffs are true, and unafraid of toil
Redmess Redmess from Netherlands
Redmess
Mar 17th 2019 at 6:53:19 AM

It probably gave an error right after actually uploading the video, but before it could finish the process on your end. Perhaps it was expecting something to happen after the upload that didn't, so it threw an error that it could not upload the video.

ch00beh ??? from Who Knows Where
???
Mar 17th 2019 at 9:17:22 AM

Ya this is a common computer problem when two systems are trying to talk to each other over a network. The internet is a lot more unreliable than we software engineers let on, and so if something looks wrong, there’s a whole theory of handling things which at its core says “retry a couple times then give up and tell the user”

In your case what probably happened is something like

PS: hey I’m sending you 3 chunks of video

YT: k

PS: here’s chunk 1

YT: k, got it

PS: here’s chunk2

YT: k got it

PS: here’s chunk 3

[YT receives but the acknowledgment message disappears into the ether. Time passes]

PS: I said here’s chunk 3

[more time passes]

PS: YT must be dead, rip

"Never let the truth get in the way of a good story." Twitter
TargetmasterJoe Much more than meets the eye! from The City, USA Relationship Status: I like big bots and I can not lie
Much more than meets the eye!
Mar 22nd 2019 at 7:17:54 AM

This coming Monday at 2pm PST and 5pm EST, PlayStation is releasing on YouTube and Twitch its first episode of what they're calling "State of Play", featuring updates and announcements regarding PS4 and PSVR software.

Sound familiar?

Status: Evil beware, I have Twitter!
tclittle Professional Forum Ninja from Somewhere Down in Texas
Professional Forum Ninja
Mar 22nd 2019 at 5:22:21 PM So I'll make a resolution, that I'll never make another one, just enjoy this ride on my trip around the sun, until its done.
Mar 25th 2019 at 2:04:35 PM

Sony's answer to Nintendo's Directs is airing right now.

edited: with better quality link

Edited by Hashil on Mar 25th 2019 at 3:09:15 AM

TargetmasterJoe Much more than meets the eye! from The City, USA Relationship Status: I like big bots and I can not lie
Much more than meets the eye!
Mar 25th 2019 at 2:38:06 PM

The first State of Play just came and went. What's the verdict?

Kinda passable, but thought it'd be meatier.

Iron Man VR caught me off-guard though.

Status: Evil beware, I have Twitter!
LeGarcon Blowout soon fellow Stalker from Skadovsk Relationship Status: Gay for Big Boss
Blowout soon fellow Stalker
Mar 25th 2019 at 2:46:02 PM

I completely missed it.

What all got shown?

Oh really when?
Mar 25th 2019 at 2:48:43 PM

A Crash Team Racing trailer, a ton of VR games, a pretty decent looking indie(?) title called Concrete Genie that looks like a stop motion movie, and a trailer for Mortal Kombat 11.

tclittle Professional Forum Ninja from Somewhere Down in Texas
Professional Forum Ninja
Mar 28th 2019 at 2:10:37 AM

Sony chairman Kazuno "Kaz" Hirai is retiring on June 18th

Edited by tclittle on Mar 28th 2019 at 4:10:58 AM

So I'll make a resolution, that I'll never make another one, just enjoy this ride on my trip around the sun, until its done.
tclittle Professional Forum Ninja from Somewhere Down in Texas
Professional Forum Ninja
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