Compatibility: EGA VGA
Expects: AH    12H
BL    10H
                                                                  
Returns: BH    default BIOS setup (0=color; 1=monochrome)
BL    mem size code (0=64K; 1=128K; 2=192K; 3=256K)
(Note: if BL>4, then this is not an EGA BIOS)
CH    feature bits (values of those RCA connectors)
CL    switch settings
                                                                  
Info: This obtains miscellaneous information about the EGA switch
settings and the current values of the "feature bits" as read
through those rarely-used RCA connectors on some EGA cards.

If upon return from this call, BL>4, then you must be running on
a CGA or MDA (not an EGA or VGA).

See Also: INT 10H 12H (EGA/VGA Special Functions/Alternate Select)
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INT 10H 12H BL=10H: Get EGA Information