Bug fix.
Removing the old i960, HPPA-RISC, x86, and IA64 modes, and the PC bios emulation.
Changing the testmips and baremips machines to a MIPS64 r2 CPU by default, instead of r1.
*** empty log message ***
Commenting out the dyntrans_device_danger stuff in memory_rw.c.
Experimenting with removing the wdc interrupt slowness hack.