pc/mp.c		1997/0327		Created.
		1997/0405
		1997/0521
		1997/0522
		1997/0524
		1997/1101
		1998/0320
		1998/0401		Add MTRR register support. Add NMI handler for debugging.
		1998/0605		Bug fix: do not enable PcmpExtINT and PcmpNMI to fix problem with Pentium Pro.
		1998/0716
		1998/0717		Change clock synchronization mechanism: stomp on TSC while looping.
		1998/0729
		1998/0825		Bug fix: print format.
		1998/0910		XXX big interrupt change with vctl.
		1998/1021
		1998/1022
		1999/0301
		1999/0310
		1999/0320
		1999/0402
		1999/0819
		2001/0127
		2001/0527
		2001/0830
		2002/0109
		2002/0404
		2002/0405
		2002/0409
		2002/0410
		2002/0411
		2002/0412
		2002/0415
		2003/0301
		2003/0326