Parameter BL Value
Reverse
BH = 00h 00h = On
01h = Graphics
02h = Text
03h = Off
FFh = Not Supported
Expanded Mode
BH = 01h 00h = Off
01h = On
FFh = Not Supported
Block Cursor
BH = 02h 00h = Off
01h = On
FFh = Not Supported
Display
BH = 03h 00h = LCD
01h = CRT
02h = Both
FFh = Not Supported
Monitor Type
BH = 04h 00h = VGA
01h = 8514-compatible
02h = Super VGA
03h = Extended Super VGA
04h = Multi Freq
05h = Ext Multi Freq
06h = Super Multi Freq
07h = Ext Super Multi Freq
FFh = Not Supported
LCD Power
BH = 05h 00h = Low
01h = Medium
02h = High
03h = Auto
FFh = Not Supported
Backlight
BH = 06h 00h = Off
01h = On
FFh = Not Supported
Text Resolution
BH = 07h 00h = 80 x 25
01h = 80 x 50
02h = 132 x 25
03h = 132 x 60
FFh = Not Supported
LCD Contrast Enhancement
BH = 08h 00h = Enable text mode attribute emulation
01h = Disable contrast enhancement
02h = Enable background enhancement
03h = Enable foreground enhancement
04h = Enable foreground and background enhancement
FFh = Not Supported
LCD Palette
BH = 09h 00h = 0 - Standard
01h = 1 - Text
02h = 2 - Fixed 1
03h = 3 - Fixed 2
04h = 4 - User 1
05h = 5 - User 2
FFh = Not Supported
External VGA
BH = 0Ah 00h = Internal VGA in use
01h = External VGA in use
FFh = Not Supported
Max Request Number
BH = FFh 0Ah
CY = Set on error (see AH)
Added Interrupt 15 Functions F-11