- added Xcpustop IPI code to support stop_cpus()/restart_cpus(). it is off by default, enable via smptests.h:TEST_CPUSTOP intr_machdep.h: - moved +ICULEN to lower level. - added entry for Xcpustop.
isa.c (slightly) more portable and will make my life developing the really portable version much easier. Reviewed by: peter, fsmp