INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - ENTER SPECIFY MODE              
	AX = 0004h
Range:	unknown
Notes:	Specify Mode is enabled by hot key (seeAlso below), and allows
	  panning and zooming via the numeric keypad.
	INT 61 is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user.  The name comes from the name of the DOS function call used to remain in memory after termination. which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0007h"OPTIMA",INT 16/AH=FFh"OPTIMA"