INT 15 - Advanced Power Management v1.2 - GET CAPABILITIES                      
	AX = 5310h
	BX = device ID (see #00474)
	    0000h (APM 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.)
	    other reserved
Return: CF clear if successful
	    BL = number of battery units supported (00h if no system batteries)
	    CX = capabilities flags (see #00480)
	CF set on error
	    AH = error code (01h,09h,86h) (see #00473)
Notes:	this function is supported via the INT 15, 16-bit protected mode, and
	  32-bit protected mode interfaces; it does not require that a
	  connection be established prior to use
	this function will return the capabilities currently in effect, not
	  any new settings which have been made but do not take effect until
	  a system restart
SeeAlso: AX=5300h,AX=530Fh,AX=5311h,AX=5312h,AX=5313h


Bitfields for APM v1.2 capabilities flags:
Bit(s)	Description	(Table 00480)
 15-8	reserved
 7	PCMCIA Ring Indicator will wake up system from suspend mode
 6	PCMCIA Ring Indicator will wake up system from standby mode
 5	Resume on Ring Indicator will wake up system from suspend mode
 4	Resume on Ring Indicator will wake up system from standby mode
 3	resume timer will wake up system from suspend mode
 2	resume timer will wake up system from standby mode
 1	can enter global suspend state
 0	can enter global standby state