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Forums - Sony Discussion - Is the rumored software backward compatibility real?

Diomedes1976 on 13 June 2008

If they really wanted ,they could do it.

At first the PS2 had the full PS1 chipset.

When the PSTwo came ,the emulation was completely through software ...and no one ever noticed that.That emulation came to the PS3 intact.

The PS2 has one 290mhz processor and it doesnt have a proper graphic card....the PS3 has 8 3200mhz processors.

The problem must come possibly because you need to run the CPU through the PPE in the Cell and the graphics chip through one SPU ...its tricky to get it working.But it is possible ,and one day we will see it probably.

What I have no doubt is that the PS4 will be fully compatible with the PS1,PS2 and PS3 as it will use Cell technology and Nvidia graphics card.



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HappySqurriel on 13 June 2008
Diomedes1976 said:
If they really wanted ,they could do it.

At first the PS2 had the full PS1 chipset.

When the PSTwo came ,the emulation was completely through software ...and no one ever noticed that.That emulation came to the PS3 intact.

The PS2 has one 290mhz processor and it doesnt have a proper graphic card....the PS3 has 8 3200mhz processors.

The problem must come possibly because you need to run the CPU through the PPE in the Cell and the graphics chip through one SPU ...its tricky to get it working.But it is possible ,and one day we will see it probably.

What I have no doubt is that the PS4 will be fully compatible with the PS1,PS2 and PS3 as it will use Cell technology and Nvidia graphics card.

Are you sure about that?

Wasn't the Playstation's CPU was included in the PS2 as its sound processor?



dbot on 13 June 2008

@HappySqurriel and @WOW - Got it. Never thought about the GS. Might be a little less likely.



Thanks for the input, Jeff.

 

 

sieanr on 13 June 2008
HappySqurriel said:
Diomedes1976 said:
If they really wanted ,they could do it.

At first the PS2 had the full PS1 chipset.

When the PSTwo came ,the emulation was completely through software ...and no one ever noticed that.That emulation came to the PS3 intact.

The PS2 has one 290mhz processor and it doesnt have a proper graphic card....the PS3 has 8 3200mhz processors.

The problem must come possibly because you need to run the CPU through the PPE in the Cell and the graphics chip through one SPU ...its tricky to get it working.But it is possible ,and one day we will see it probably.

What I have no doubt is that the PS4 will be fully compatible with the PS1,PS2 and PS3 as it will use Cell technology and Nvidia graphics card.

Are you sure about that?

Wasn't the Playstation's CPU was included in the PS2 as its sound processor?

Yes. The PSX CPU was in all revisions of the PS2 hardware. 

Later revisions changed some of the BC relevant hardware around and the slimline PS2s cant play certain PS titles.



Leo-j said: If a dvd for a pc game holds what? Crysis at 3000p or something, why in the world cant a blu-ray disc do the same?

ssj12 said: Player specific decoders are nothing more than specialized GPUs. Gran Turismo is the trust driving simulator of them all. 

"Why do they call it the xbox 360? Because when you see it, you'll turn 360 degrees and walk away"