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Re: sgi O2 VICE and Nintendo64
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On Mar 5, 2013, at 6:17 AM, roop wrote:
I had a memory burp: O2 VICE and Nintendo64 ; someone asking about
Brain righted itself n64 (32/64bit ABI) not N64 (Nintendo), or n32
or o32 subset.
Anyway, I randomly googled, refreshing my world view that the O2 is
amongst the different projects;
- The hardware acceleration in VICE (derivative found in Nintendo64)
Linux 2.5.x (http://www.linux-mips.org/~glaurung/),
- Macallans excellent O2 2D acceleration work (didn't use VICE IIRC)
in NetBSD (http://my.opera.com/Macallan/blog/2009/04/01/xorg-on-o2)
(Was this only XFree, or was carried over to Xorg?)
It's in -current Xorg as well. Using VICE there makes little sense
- - the MTE is much, much faster. Can't always use it but if we can it's
running circles around everything else you can find in the O2.
- - the drawing engine supports everything we need in a console driver
and basic X, I doubt VICE could beat it speed-wise doing simple,
unaligned bit ops.
VICE is useful for more complex stuff that the drawing engine can't
do, like video filtering and whatnot. Since it's a separate, fairly
non-standard CPU ( a funky R3k-ish thing with a SIMD unit instead of
an FPU ) that's kinda complicated though.
If anybody wants to give it a shot I have the manual.
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