MIPS R5900 support => Disabling a few I2 instructions

[Doug Evans]

Doug Evans writes:
 > I'm confused by "That's why I chose to define it as a MIPS3 CPU."
 > 
 > That suggests all of Cygnus's work circa 1998/1999 didn't get
 > folded back into the FSF tree.  I know the dvp stuff didn't get
 > folded back :-(, but the mips stuff too?

btw, ooc, and all that.
Are you using gnu-ee-2.9-990721 from
http://ps2dev.sourceforge.net/downloads.html
?

[There may be copyright issues that need to be thought through,
but I dunno.]