INT 62 u - FGDRIVER v3.03 - "FG_GETADDR" - GET SEGMENT OF ACTIVE VIDEO PAGE
        AX = 002Fh
Return: AX = segment of active video page
Note:   For FGDRIVER v1.10, this function was "FG_PAINT" (see AX=006Eh);
           "FG_GETADDR" was AX=0044h
SeeAlso: AX=0036h,AX=008Fh

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