Megadrive1988
Veteran
PlayStation 3 may not have LSI chips in its design
- Thread starter Megadrive1988
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marconelly!
Veteran
What are LSI chips used for in PS1 and PS2?
Panajev2001a
Veteran
Megadrive1988 said:
Interesting, does this mean that PSOne will be emulated using a fully Software solution then ?
That or they're just going to use home-grown chips from this point on for I/O purposes.
I've said it in the past. Emulation is the way to go. They found a use for PS1 in the PS2 but it just isn't cost efficient to keep including legacy hardware whenever you launch a new system. I'm sure Sony feels the same and that they picked up Virtual Game Station for this very reason.
Megadrive1988
Veteran
LSI Logic worked with Sony in 1993-1994 to intergrate several processors together, to form Playstation's CPU.
(such as the MIPS R3000 + GTE + DMA + MDEC + I/O)
(such as the MIPS R3000 + GTE + DMA + MDEC + I/O)
nondescript
Regular
I think that this is an indication of Sony's confidence in the maturity of its in-house IC-design skills. And, as Pana, cybamerc said, a clear sign that Sony intends to go w/ emulation.
Re: ...
This is easy to tell. You see when stated as:
This implies what the rest of the Western-World calls the PlayStation1. It's the "actual" name, as opposed to the great white-devil's recent play on words which resulted in the:
This refers to the PS2OAC (or the so-called "EE+GS@90") powered CE device, which is put in quotations due to it's fallicious use of that name by the company which produced and marketed it as such. Can't you just feel the overbearing contempt and scorn for that false-deity the quotations bring?
Deepak said:You mean PS1 or "PSX"??
This is easy to tell. You see when stated as:
This implies what the rest of the Western-World calls the PlayStation1. It's the "actual" name, as opposed to the great white-devil's recent play on words which resulted in the:
This refers to the PS2OAC (or the so-called "EE+GS@90") powered CE device, which is put in quotations due to it's fallicious use of that name by the company which produced and marketed it as such. Can't you just feel the overbearing contempt and scorn for that false-deity the quotations bring?
I could. Spoooooky!
...
What we do find..
1. IOP is apaprantly not visible on "PSX" board.
2. Its chief engineer claims "PSX"'s sound system is different/much better than PSX2's.
So my guess is that the lower level(IOP+SPU2) is being emulated by the "PSX"'s CPU...
Emulated by "PSX"'s host CPU purhaps??? The PSX2OAC was added as a GPU in the system layout and PSX2 compatibility was not an original goal..
What we do find..
1. IOP is apaprantly not visible on "PSX" board.
2. Its chief engineer claims "PSX"'s sound system is different/much better than PSX2's.
So my guess is that the lower level(IOP+SPU2) is being emulated by the "PSX"'s CPU...
Is PSX compatible with PSX2 !?!?
I would have thought that PSX2 would be based on PS3 architecture, as it doesn't make much sense to release another successor to PSX using PS2 architecture.
Or is PSX2 like PSOne was for original PS. A smaller, stripped down version of PSX. But in that case the name PSX2 would be misleading.
I would have thought that PSX2 would be based on PS3 architecture, as it doesn't make much sense to release another successor to PSX using PS2 architecture.
Or is PSX2 like PSOne was for original PS. A smaller, stripped down version of PSX. But in that case the name PSX2 would be misleading.
Can't work - EE side expects hardware signals from IOP side. You would have to emulate the whole EE in software as well to make it work.
Btw, I am not sure if there IS another CPU in the "PSX", but if there was, the only reason I see for it is to provide paralel operation to EE side. Forcing it to emulate IOP and Sound chip would defeat that purpose.
...
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 should. The "PSX"'s CPU(No it is not EE, it is some DSP that does MPEG2 encoding) emulates IOP+SPU2, the PSX2OAC is merely an attached device feeding off the "PSX"'s CPU emulating the IOP.
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.
To understand "PSX". visualize a DVD-recorder with PSX2-based videocard plugged in. That's the rough description of "PSX.
I don't get it. How many times have you been told, Deadmeat, and you keep on doing it your way... Can you please use the right names.