PlayStation 3 may not have LSI chips in its design

[Fafalada]

It should.

It doesn't - the "relationship" between EE and IOP is not a simple master slave. From what I remember of my architecture classes you would need to adjust the "DSP" hardware to make this to work, and in that case the whole thing seems completely pointless.
IOP is already dirt cheap and avoids all the hassles of emulation. You're basically insisting that Sony should do something that is more expensive AND less reliable just for the sake of keeping you happy.

This is why "PSX" won't play PSX1 & PSX2 titles at power-up, it will have to reboot to go into a compatibility mode to play those.

It's more likely PSX won't play games on startup because EE boots up with the GUI/OS for Movie play/browsing. Games don't run under that OS, so you reboot for them (much like dualbooting on PC when only one OS can run the game).

 

[Deadmeat]

It doesn't - the "relationship" between EE and IOP is not a simple master slave.

PSX2 :

IOP = Master
EE = Slave

"PSX" :

DSP = Master
PSX2OAC = Slave

IOP is already dirt cheap and avoids all the hassles of emulation.

Is it??? I was the under the impression that LSI was making a killing off each IOP, and this was why Kutaragi was so eager to get rid of it..

You're basically insisting that Sony should do something that is more expensive AND less reliable just for the sake of keeping you happy.

Emulator costs nothing to add once implemented.

 

[Deadmeat]

...

http://liksang.com/news.php?artc=3244

Tell me which one is IOP; I don't see it. There is no chip bearing the mark of LSI whatsoever. This leaves two possibilities.

1. SCEI reverse engineered IOP and SCEI clone is on board.(But standard PSX2s still have LSI marked chips)
2. Sony Electronics is emulating IOP, along with SPU2.("PSX"'s sound system is supposed to be different from and is superior to PSX2's sound system.)

My guess is that Sony Electronics took a gamble with PSX1 compatibility and went with IOP emulation, since game playing is not the primary feature of "PSX" in th first place.

 

[Deepak]

To help people understand DM's posts....

PSX = New PS2 + DVD Recorder
PSX1 = PS = Original PlayStation
PSX2 = PS2 = PlayStation 2
PSX2OAC = EE+GS@90nm

 

[Deadmeat]

...

CodeName : Trade Name

PlayStation = SNES CD
PSX = PlayStation
"PSX" = PSX
PSX2 = PlayStation 2

Don't blame me for this mess, it's Sony's fault.

 

[notAFanB]

PSX2 = PlayStation 2

is this correct?

Don't blame me for this mess, it's Sony's fault.

It's Sony's fault that you refuse to adopt the trade name for the product???


on a side note faf, why can't the IOP be under some form of emulation/translastion? while hadly trivial to implement I wouldn't imagine moving the earth to ensure reasonable compatability?

 

[London Geezer]

Re: ...

Don't blame me for this mess, it's Sony's fault.

 

[StefanS]

PSX2 = PlayStation 2

is this correct?

No, it's not but everyone is used to Deadmeat's naming...

 

[marconelly!]

The better question is, is this correct:

"PSX" = PSX

 

[notAFanB]

PSX2 = PlayStation 2

is this correct?

No, it's not but everyone is used to Deadmeat's naming...

no, I'm deadly serious. I've tried googling but no definitive answer was forthcoming on this. was the PS2 in it's alpha planning stages ever allocated this title in the same way as it's predessor?

I wouldn't be surprised too much if it were (makes sense to), but given DM's adamancy on this term I thought it woulld be a little more common knowledge than not.

 

[ChryZ]

Re: ...

CodeName : Trade Name

PlayStation = SNES CD
PSX = PlayStation
"PSX" = PSX
PSX2 = PlayStation 2

Don't blame me for this mess, it's Sony's fault.

LOL ... here is something for your collection:

GC=Dolphin
XBOX=Project Midway

 

[London Geezer]

Re: ...

CodeName : Trade Name

PlayStation = SNES CD
PSX = PlayStation
"PSX" = PSX
PSX2 = PlayStation 2

Don't blame me for this mess, it's Sony's fault.

LOL ... here is something for your collection:

GC=Dolphin
XBOX=Project Midway

Will DM start calling them Dolphin and Project Midway?

(I must admit, Dolphin sounds much better than GC...)

 

[StefanS]

no, I'm deadly serious. I've tried googling but no definitive answer was forthcoming on this. was the PS2 in it's alpha planning stages ever allocated this title in the same way as it's predessor?

I am not entirely sure but I think I've heard that PSX2 was never used, but i might be wrong...

LOL ... here is something for your collection:

GC=Dolphin
XBOX=Project Midway

don't forget:
N64=Ultra64=Project Reality

 

[Evil_Cloud]

Katana/Black Belt = Dreamcast

...

Oh and Incorrect = Deadmeat

 

[Megadrive1988]

Katana/Black Belt = Dreamcast

well, almost, but not quite.


Dural/Katana = Dreamcast
BlackBelt = scrapped

Dural/Katana, and Blackbelt were seperate consoles, with different 3D graphics accelerators and different CPUs. among other differences.


BlackBelt had a 3Dfx Voodoo / Banshee derivative for graphics and either a PowerPC or MIPS CPU. possibly a non-Yamaha audio processor too, but I'm not sure of that. BlackBelt was developed under Sega of America

Dural/Katana/Dreamcast of course had a Videologic/NEC PowerVR2 / CLX graphics chip and aHitachi SH-4 CPU. Dural/Katana/Dreamcast was developed under Sega of Japan.


here's an analogy (not perfect, but the best i can think of)

the U.S. AirForce wanted an Advanced Tactical Fighter (ATF) to replace the aging F-15C Eagle.

two seperate design teams went to work on prototypes for an ATF in the 1980s. one of them was the YF-23 'Grey Ghost' by Northrop and McDonald Douglas. The other was the YF-22 'Shooting Sta'r aka
'Lightning II' by Lockheed, Boeing and General Dynamics.


in 1990 both ATF prototypes faced off in a series of flight tests.

the Air Force selected the YF-22 Shooting Star / Lightning II in
1990 or 1991, as the winner, to be the ATF and replace the F-15C.

the YF-22 continued to be developed into the F-22A Raptor, and finally named the F/A-22 Raptor more recently.

the YF-23 never progressed in development from 1990-1991.

(sorry for the long post about one simple little thing)

 

[oi]

I seem to remember that Playstation 2 was called 'PSY' for a while before it was dubbed PS2. I'm quite sure that no one ever called it PSX2 though heh.

 

[Vince]

Two seperate design teams went to work on prototypes for an ATF in the 1980s. one of them was the YF-23 'Grey Ghost' by Northrop and McDonald Douglas. The other was the YF-22 'Shooting Sta'r aka 'Lightning II' by Lockheed, Boeing and General Dynamics.

Um, not quite. The YF-23 was called the "Black Widow II" internally due to an odd turn of events with historical significance. During trials in the early '90s an YF-23 prototype had a red 'hourglass' painted on it's inferior surface. This is reminiescent of the Black Widow, which has historical roots in the WWII era BlackWidow nightfighter which was highly sucessful...

Don't ask me how I know this.

 

[Megadrive1988]

sorry, i forgot, the YF-23 was also known as the Black Widow II. but also remember the name Grey Ghost.

YF-22 had two names, Shooting Star and Lightning II, so I don't see why the YF-23 couldnt have two names also.

 

[nobie]

I seem to remember that Playstation 2 was called 'PSY' for a while before it was dubbed PS2. I'm quite sure that no one ever called it PSX2 though heh.

I guess this makes Playstation 3 'PSZ'. For Playstation 4, they'll have to roll over the acronym and use 'PTA' :]

 

[Guden Oden]

Don't ask me how I know this.

Or else you'll be forced to kill us, should we come to know this piece of information?

Anyway, Deadmeat, as for the IOP in the PSX, I would venture a guess and say it is the large chip near the joypad connectors in this image: http://image.lik-sang.com/content/psx-news/psx-news42.jpg together with the sound chip right next to it.

I don't see why Sony would need to reverse engineer their own chip, it's THEIR CHIP for crying out loud, but the tenuous connection stretched beyond breakingpoint never stopped you before DM, so...