INT 67 - Virtual Control Program InterfaceA simple API for protected-mode programs to allocate memory and switch into or out of protected mode.  See also DOS Protected-Mode Interface. - SET DEBUG REGISTERS
	AX = DE09h
	ES:DI -> array of 8 DWORDs holding new values of debug registers
Return: AH = 00h
Note:	values for DR4 and DR5 ignored
SeeAlso: AH=3Fh,AX=DE08h