sgi O2 VICE and Nintendo64

I had a memory burp: O2 VICE and Nintendo64 ; someone asking about N64 kernel; 
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 scattered
amongst the different projects;
- The hardware acceleration in VICE (derivative found in Nintendo64) was in
  Linux 2.5.x (http://www.linux-mips.org/~glaurung/), 
- Macallans excellent O2 2D acceleration work (didn't use VICE IIRC) X11 work
  in NetBSD (http://my.opera.com/Macallan/blog/2009/04/01/xorg-on-o2) 
  (Was this only XFree, or was carried over to Xorg?)
- OpenBSD's support for the O2 system generally seems more featureful and
  stable.
- Finally, back to IRIX, the guys at Nekochan have updated Firefox to 3
  (http://forums.nekochan.net/viewtopic.php?f=15&t=16727403) for IRIX and report
  faster, more stable behaviour than ff2.x (haven't tried it). 

But what's happening over in Nintendo world, and we find some nice research
into RSP from 2012/2013,

http://forum.pj64-emu.com/showthread.php?t=3398
https://github.com/cxd4/rcp/tree/master/rsp

Is O2 VICE and the Nintendo64 near enough this research useful?

Just posting if this is interesting.

rob