Category: DOS-based task switchers/multitaskers
Flags: Undocumented function

INT 16 - PC Tools v8+ CPTASK - GET AND CLEAR ??? FLAG

	AX = FF80h
	BX = 0006h
Return: AX = old state (0000h clear, 0001h set)
Note:	the tested flag is bit 13 of the flags returned by AX=FF80h/BX=0003h