Floating point should be working now.

    There are still issues related to the VM system (not surprisingly).  A 
    make buildworld from a virtual kernel with 64M of 'ram' and 512M of
    swap gets confused and starts seg faulting.

    This is a good sign, actually.  There can't be too many bugs left if
    I can get half way through a buildworld.  It's probably a bug in the
    handling of the virtual page table's 'M'odify bit.  The real kernel
    has to go through contortions to make that bit work.

					-Matt