How Do We Know that the PS3 Will Be 100% Backwards Compatible

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Mefisutoferesu said:
As to the eDram, what was the bandwidth associated with the PS2?.



[font=Verdana,Tahoma,Arial,Helvetica,Sans-serif,sans-serif]The DRAM bus [/font]bandwidth [font=Verdana,Tahoma,Arial,Helvetica,Sans-serif,sans-serif] was 48GB/s on PS2, IIRC. [/font]
 
and what about... Quote:
"PSOne runs on the PlayStation 2 through emulation rather than actual hardware. PlayStation 3 will offer the same compatibility for PS2 software, and the format will continue forever," Kutaragi reportedly told Japanese newspaper Asahi Shimbun.
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THe psone hardware was in the ps2. It was either an i/o chip or a sound chip. I forget which one .


Regardless ps2 wasn't a 100% backwards compatible
 
jvd said:
THe psone hardware was in the ps2. It was either an i/o chip or a sound chip. I forget which one .


Regardless ps2 wasn't a 100% backwards compatible

So is Ken completely wrong jvd? Was there no emulation?
 
mckmas8808 said:
So is Ken completely wrong jvd? Was there no emulation?

There may have been emulation but there was also hardware .

And it wasn't a 100% backwards compatible . Games like ridge racer and other launch games ( i believe 10 - 15)
 
jvd said:
There may have been emulation but there was also hardware .

And it wasn't a 100% backwards compatible . Games like ridge racer and other launch games ( i believe 10 - 15)

That´s right, PS2 was only 99.99% backwards compatible. Those decieving bastards!!
 
Both the R3000 CPU and the sound chip from PS1 were physically present in the PS2. They used the GS to emulate the PS1 graphics, and that's how they could apply bilinear filtering on PS1 games.
The few incompatibilities came from either the GS rendering, or some undocumented use of the R3000 instructions and things along these lines. I think the list of incompatible PS1 games was less than 100.
 
I wonder how many people will return their core xbox360 thinking it is faulty because it doesn't play any of the old xbox games, even though Microsoft said the xbox360 wuld be backwards compatible.
There must be a lot of potential core xbox360 buyers who have not followed the proceedings so closely after the first official spec announcements and E3, when it was led to believe that the xbox360 would be bc as standard.
 
jvd said:
There may have been emulation but there was also hardware .

And it wasn't a 100% backwards compatible . Games like ridge racer and other launch games ( i believe 10 - 15)

Well isn't that the same thing that he has said the PS3 will have. Some hardware, some software.
 
mckmas8808 said:
Well isn't that the same thing that he has said the PS3 will have. Some hardware, some software.

Yup . yet it wasn't a 100% backwards compatible and now they have 2 carry 2 systems through hardware and software . So they have no easy task ahead of them . If you think either company has bc ironed out and prefect then your missing the slew of problems both of them face.

Ms seems to have push out fixed .exes and sony needs to make sure the software modes they create are good enough to emulate two diffrent systems and as we've seen from the ps2 many devs had the hardware do funky things that may break software emulation .
 
jvd said:
Yup . yet it wasn't a 100% backwards compatible and now they have 2 carry 2 systems through hardware and software . So they have no easy task ahead of them . If you think either company has bc ironed out and prefect then your missing the slew of problems both of them face.

Ms seems to have push out fixed .exes and sony needs to make sure the software modes they create are good enough to emulate two diffrent systems and as we've seen from the ps2 many devs had the hardware do funky things that may break software emulation .

Understand jvd I know what you are trying to say, but you are forgetting somethings. Sony created their own hardware. They have already stated that over 13,000 titles will be playable from Day 1. That's something that MS has not said yet. They are sending plenty of mixed messages, while Sony is not. Why because they will have it under control. And they planned that from the start.
 
mckmas8808 said:
Understand jvd I know what you are trying to say, but you are forgetting somethings. Sony created their own hardware. They have already stated that over 13,000 titles will be playable from Day 1. That's something that MS has not said yet. They are sending plenty of mixed messages, while Sony is not. Why because they will have it under control. And they planned that from the start.

Have they said 13000 titles will be playable from day one ? I don't ever recall him saying day one .


We will see what happens . Sony still has some time left to work on it and ms has even less time
 
Bad_Boy said:
well, its pretty much a given its gonna be from day 1 like the ps2 was.

if it wasn't said then its not a given . Just look at ms , even if it was said it may not be a given heh
 
If Sony were to do something like this, this would certainly piss the hell out of consumers (me included). Here's betting they don't. ;)
 
Why would BC not be enabled straight out of the box? There is nothing to be added to PS3 to enable BC unlike the X360 which WILL need the HDD.

If Sony were to ask for an upgrade or something just to enable BC on PS3, it would be a 100% rip-off. And i'm quite sure they won't do that, they have no reason to be THAT greedy, when they know that a lot of people will still have a PS2 sitting there at home, so why pay more for a supposed "BC upgrade for PS3" when they can just play the old games (both PS1 and PS2) on PS2?

Sounds stupid.
 
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Who is saying it requires and upgrade to purchase ?

I am talking about the emulation software they use .

Sony is emulating old hardware just like ms . I see no reason to believe one will have clear sailing and the other wont just becasue one claims something even though we know they did not have a 100% sucess rate last generational transition .
 
jvd said:
Who is saying it requires and upgrade to purchase ?

I am talking about the emulation software they use .

Sony is emulating old hardware just like ms . I see no reason to believe one will have clear sailing and the other wont just becasue one claims something even though we know they did not have a 100% sucess rate last generational transition .

But they did use some emulation last gen also so what's your point? Ken said it himself.
 
You said:

jvd said:
if it wasn't said then its not a given . Just look at ms , even if it was said it may not be a given heh


Meaning that you think "it's not a given that PS3 will have BC out of the box".
Meaning that we would be required to buy some kind of upgrade (software or hardware) to enable it.
To which people are objecting because Sony has no reason to do that, apart from truly shameless greed. Whereas MS's situation is different, what with the HDD and all.
 
jvd said:
I am talking about the emulation software they use .

Sony is emulating old hardware just like ms . I see no reason to believe one will have clear sailing and the other wont just becasue one claims something even though we know they did not have a 100% sucess rate last generational transition .
MS is needing recompiled .exe's for it's 'layer 2+' games which need storage : hence HDD even if the games don't use it. If PS3 doesn't need .exe's then it's requirement for a software solution are reduced, which implies a fuller solution. The key difference we have so far in the two approaches is we know XB360 has zero hardware emulation. It's a different CPU, different GPU, different everything. Whereas we know PS3 has hardware emulation of a degree. To date, talk of XB emu's difficulties has been around emulating the GPU. Assuming the same of PS2 (though it does have a more complex architecture) then it'd only take a little (15 million transistors I think someone said) to incorporate a lower-level support for emulation. That's why PS3 seems to me to have less difficulties than XB360's XB emu.

There's also an interesting POV in the future of this-gen platforms. XB's 'dying' this year, whereas PS2 is to continue for a year or two more yet. There'll be people buying PS2 system's who'll want to grow with the hardware at a later date, so I think it's more important in Sony's eyes to provide BC support, compared with MS's afterthought solution.
 
There will NOT be any recompiled exe's for Backwards compatability on xbox 360. They are writting an emulator with some hardware required to improve backwards compatability. I believe they already stated it was an emulator long ago, so I don't know why this is still floating about.

Rewritting executables when you don't have access to ANY of the third party developers source code, is simply out of the question.
 
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