INT D4 - PC-MOS/386 v5.01 - GET TASK PARTITION INFORMATION                      
	AH = 1Fh
	BX = task ID (FFFFh for current task) (see AH=19h)
Return: CF clear if successful
	    CX = start segment of task
	    DX = ending segment of task
	CF set on error
	    AX = error code (see #01680 at INT 21/AH=59h/BX=0000h)
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
SeeAlso: AH=2Dh