Version update.
Fixing a regression bug which was introduced September 2012 (svn r5805), regarding shifted immediate values, which caused OpenBSD/cats to fail during install.
Dummy SH4 BCR3 register, to make OpenBSD/landisk boot a tiny bit quieter.
OpenBSD/landisk 6.3 guest OS install instruction update.
NetBSD/dreamcast -> 8.0.
Stop warning about 0xffff MIPS pagemask.
Minor SGI hacks.
SGI experiments.
Updating comment.
Fixing PS/2 (8242) keyboard controller length for SGI O2 emulation.
