INT 21 P - OS/286, OS/386 - CHANGE SEGMENTS                                     
	AH = E9h
	AL = function
	    01h change code segment parameters
	    02h change data segment parameters
	    05h adjust segment limit
	    06h change segment base address
	???
Return: ???
SeeAlso: AH=E7h"OS/286",AH=E8h"OS/286",AH=EAh"OS/286",AH=EDh"OS/286"
SeeAlso: INT 31/AX=0007h,INT 31/AX=0008h