INT 15 - HUNTER 16 - CONTROL POWER INPUT (SPM) 
	AH = 8Ah
	AL = new state of Power Input (00h disabled, nonzero enabled)
	SI = 1234h
	DI = 5678h
Return: AH = status
	    00h success
	    FFh failure
Desc:	Enable or disable Power Input. When Power Input is disabled the AC
	  adapter will neither charge the batteries nor supply power to the
	  Hunter 16. Disable Power Input if using Alkaline batteries.
                                                                                

INT 15 - Phoenix BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v4.0 - GET BIG MEMORY SIZE
	AH = 8Ah
Return: DX:AX = extended memory size in K
SeeAlso: AH=88h,AX=E801h,AX=E820h