INT 10 - Cirrus Logic 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. - GET USER OPTIONS
	AH = 12h
	BL = 9Ah
Return: AX = options word 1 (see #00031)
	CX = options word 2 (see #00032)
	BX,DX reserved
SeeAlso: AH=12h/BL=80h,AH=12h/BL=84h,AH=12h/BL=93h,AH=12h/BL=A0h
SeeAlso: AH=12h/BL=A3h,AH=12h/BL=A4h,#00732 at INT 1A/AX=B102h


Bitfields for Cirrus Logic options word 1:
Bit(s)	Description	(Table 00031)
 0,1	reserved
 2-4	monitor type
 5-6	maximum vertical resolution
 7-9	reserved
 10	force 8-bit operation
 11-13	reserved
 14	vertical refresh frequency at 640x480
	=0 60 Hz
	=1 high refresh
 15	reserved
SeeAlso: AH=12h/BL=AEh


Bitfields for Cirrus Logic options word 2:
Bit(s)	Description	(Table 00032)
 15-13	vertical refresh frequency at 1024x768
 12-11	vertical refresh frequency at 800x600
 10-6	reserved
 5-4	vertical refresh frequency at 1280x1024
 3-0	reserved
SeeAlso: #00033


Bitfields for Cirrus Logic Options word 2 (alternate???):
Bit(s)	Description	(Table 00033)
 15-12	vertical refresh frequency at 1024x768
	0000 43i Hz
	0001 60	 Hz
	0010 70	 Hz
	0011 72	 Hz
	0100 76	 Hz
	other reserved
 11-8	vertical refresh frequency at 800x600
	0000 56 Hz
	0001 60 Hz
	0010 72 Hz
	0011 75 Hz
	other reserved
 7-4	maximum vertical resolution
	0000 480  scanlines
	0001 600  scanlines
	0010 768  scanlines
	0011 1024 scanlines
	other reserved
 3-1	vertical refresh frequency at 1280x1024
	000 43i	 Hz
	001 60	 Hz
	010 71.2 Hz (CL-GD5434 rev. E and F)
	011 74	 Hz (CL-GD5434 rev. E and F)
	other reserved
 0	reserved
SeeAlso: #00032