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Detecting EGA Video
INT 10h, function 12h (in AL), subfunction 10h (in BL) will
return BL = 10h if not an EGA since invalid functions requests
return without register modification
or
INT 10h function 1Ah can be used to detect the presence of EGA.
BL = 4 EGA with color display
= 5 EGA with monochrome video display
- see INT 10/1A |
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