GXemul Code2

Only allow SGI O2 MTE memory fills to pages that are in a TLB.

Made the pckbc work with NetBSD/sgimips.

Quieter.

Use SRC TLB, not DST, to read from. :-)

Implementing MTE_MODE_COPY in the SGI O2 memory transfer engine to allow NetBSD to scroll up the framebuffer.

80 columns.

Fixing broken MACE interrupt mechanism for SGI O2.

Minor comment update.

Comments and minor fixes.

Moving OpenBSD/sgi from unsupported.html to guestoes.html.