gamedevlists-consoles

RE: [GD-Consoles] Linux for PS2 kit

[Stefan B. <sbo...@te...>]

> Simple question regarding the Linux for PS2 kit: Can I really develop
> engine/game prototypes on it?

  I guess you could, but I hear it is very slow compared to a "bare"
PS2, due the the MMU setup they use (I heard figures as high as 4x
slower on the EE side - don't know how true that is). Also, 32MB really
is not enough to compile, but I suppose you could try cross-compiling
from a PC.

  Personally, I think you would be better off just prototyping on a PC.

--
Stefan Boberg - R&D Manager, Team17 Software Ltd.
bo...@te...

RE: [GD-Consoles] Linux for PS2 kit

[Brian S. <bs...@mi...>]

This doesn't appear to be correct:

http://playstation2-linux.com/faq.php#Is_the_PlayStation_2_specific_hard
ware

--brian

> -----Original Message-----
> From: y o g i w p [mailto:yo...@ya...]
> Sent: Friday, March 08, 2002 1:59 AM
> To: gam...@li...
> Subject: Re: [GD-Consoles] Linux for PS2 kit
>=20
> (re-send, incorrectly replied to sender)
>=20
> ----- Original Message -----
> From: Dirk Ringe <ri...@ph...>
>=20
> > The development on ps2/linux is totally different from development
on
> the
> > raw ps2 machine. To protect its IP ps2/linux runs in a virtual
machine,
> ie.
> > an abstraction layer to the hardware... I do not expect that
anything
> done
> > on ps2/linux is of use on the ps2 itself.
>=20
> Gee, that's not good :(
> But then what's the point of releasing the Linux kit?

RE: [GD-Consoles] Linux for PS2 kit

[Dirk R. <ri...@ph...>]

Sorry, I stand corrected. I had one article in mind which had a (p)review of
the linux for ps2 kit, but it seems, that my memory (or the article) has
fooled me.

Dirk

-----Original Message-----
From: gam...@li...
[mailto:gam...@li...]On Behalf Of
Brian Sharon
Sent: Friday, March 08, 2002 6:58 PM
To: y o g i w p; gam...@li...
Subject: RE: [GD-Consoles] Linux for PS2 kit


This doesn't appear to be correct:

http://playstation2-linux.com/faq.php#Is_the_PlayStation_2_specific_hard
ware

--brian

> -----Original Message-----
> From: y o g i w p [mailto:yo...@ya...]
> Sent: Friday, March 08, 2002 1:59 AM
> To: gam...@li...
> Subject: Re: [GD-Consoles] Linux for PS2 kit
>
> (re-send, incorrectly replied to sender)
>
> ----- Original Message -----
> From: Dirk Ringe <ri...@ph...>
>
> > The development on ps2/linux is totally different from development
on
> the
> > raw ps2 machine. To protect its IP ps2/linux runs in a virtual
machine,
> ie.
> > an abstraction layer to the hardware... I do not expect that
anything
> done
> > on ps2/linux is of use on the ps2 itself.
>
> Gee, that's not good :(
> But then what's the point of releasing the Linux kit?

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Re: [GD-Consoles] Linux for PS2 kit

[y o g i w p <yo...@ya...>]

----- Original Message ----- 
From: Stefan Boberg <sbo...@te...>

>   I guess you could, but I hear it is very slow compared to a "bare"
> PS2, due the the MMU setup they use (I heard figures as high as 4x
> slower on the EE side - don't know how true that is). Also, 32MB really
> is not enough to compile, but I suppose you could try cross-compiling
> from a PC.

I see. Where can I look for more info like this?

>   Personally, I think you would be better off just prototyping on a PC.

Well, let's say I'm developing an experimental engine, and just curious
how well it would port to PS2. What do you think, is it worth it?

Thanks.

RE: [GD-Consoles] Linux for PS2 kit

[Dirk R. <ri...@ph...>]

The development on ps2/linux is totally different from development on the
raw ps2 machine. To protect its IP ps2/linux runs in a virtual machine, ie.
an abstraction layer to the hardware... I do not expect that anything done
on ps2/linux is of use on the ps2 itself.

Dirk

-----Original Message-----
From: gam...@li...
[mailto:gam...@li...]On Behalf Of y
o g i w p
Sent: Thursday, March 07, 2002 3:14 PM
To: gam...@li...
Subject: Re: [GD-Consoles] Linux for PS2 kit


----- Original Message -----
From: Stefan Boberg <sbo...@te...>

>   I guess you could, but I hear it is very slow compared to a "bare"
> PS2, due the the MMU setup they use (I heard figures as high as 4x
> slower on the EE side - don't know how true that is). Also, 32MB really
> is not enough to compile, but I suppose you could try cross-compiling
> from a PC.

I see. Where can I look for more info like this?

>   Personally, I think you would be better off just prototyping on a PC.

Well, let's say I'm developing an experimental engine, and just curious
how well it would port to PS2. What do you think, is it worth it?

Thanks.



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Re: [GD-Consoles] Linux for PS2 kit

[y o g i w p <yo...@ya...>]

(re-send, incorrectly replied to sender)

----- Original Message ----- 
From: Dirk Ringe <ri...@ph...>

> The development on ps2/linux is totally different from development on the
> raw ps2 machine. To protect its IP ps2/linux runs in a virtual machine, ie.
> an abstraction layer to the hardware... I do not expect that anything done
> on ps2/linux is of use on the ps2 itself.

Gee, that's not good :(
But then what's the point of releasing the Linux kit?

RE: [GD-Consoles] Linux for PS2 kit

[xark <xa...@li...>]

On Thu, 7 Mar 2002, Dirk Ringe wrote:

> The development on ps2/linux is totally different from development on the
> raw ps2 machine. To protect its IP ps2/linux runs in a virtual machine, ie.
> an abstraction layer to the hardware... I do not expect that anything done
> on ps2/linux is of use on the ps2 itself.
> 
> Dirk

I don't think this is totally accurate.  Obviously you aren't going to
make booting PS2 game discs with PS2 Linux, but I don't think it runs on a
"virtual machine".  The only thing locked-up AFAIK is the I/O Processor
(IOP).  The IOP runs a closed "driver" that Linux talks to for I/O and
sound.  On the EE side, you supposedly have _full_ access to the PS2 EE
CPU (including VU0, VU1) and the graphical hardware (VIF, GIF, GS etc.).  

There is a public site Sony has set up for discussion and information 
about PS2 Linux, check it out:

http://playstation2-linux.com/

and the especially the FAQ at

http://playstation2-linux.com/faq.php

Even if a PS2 doesn't make the "ultimate" Linux workstation, it at least
sounds like a fun (and legal) way to get some PS2 development experience.

-Xark