[kaffe] Status of Playstation 2 patches

Kevin D. Kissell kevink at mips.com
Thu Dec 12 10:34:01 PST 2002

Note that some of the stuff that I filed as MIPS patches
is either identical or equivalent to some of Dylan's PS2
patches - indeed, one of the reasons I got seriously
engages was that I could see that Dylan was labeling
fixes "PS2" that were actually pretty generic to MIPS
(that's not a bad reflection on him - when the only
MIPS you have is a PS2, all problems look like PS2
problems!).  The main differences are that the GP/FP
offset in the stack frame is very different on the PS2,
due to the extended registers, and that the PS2 lacks
functioning LL/SC instructions, despite being an advanced
MIPS processor.  Newer versions of MIPS/Linux will
emulate those instructions, but I don't think those new
kernels are up and running widely on PS2s yet.


            Kevin K.

P.S.  I still haven't been able to get back to the bugs
         in the MIPS JIT.  They mostly seem to have to
         do with the complicated gcc argument passing
         conventions for MIPS, particularly for mixed
         FP/integer parameter lists.  Has anyone else
         made any progress here?

----- Original Message ----- 
From: "Dalibor Topic" <robilad at yahoo.com>
To: "Dylan Schell" <dylans at xs4all.nl>
Cc: <jim at kaffe.org>; <kaffe at kaffe.org>
Sent: Thursday, December 12, 2002 7:03 PM
Subject: [kaffe] Status of Playstation 2 patches

> Hi Dylan,
> a while ago (i.e. in June 2002) you posted a set of
> patches adding support for the Playstation 2 platform.
> I'd like to see then merged into the main tree. Can
> you put them up on the web somewhere, and include a
> ChangeLog for your changes against the current
> sources? 
> A FAQ.playstation2 file that explains any problems the
> port might have and how to compile it using the
> cross-compilation chain would be great, too.
> Kevin Kissel did some work recently to improve the
> mips-linux port, so it'd be nice if you could check
> that your port still works, and we can merge it in.
> best regards,
> dalibor topic
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