INT 62 u - FGDRIVER v3.03 - "FG_GETPAGE" - GET ACTIVE VIDEO PAGE NUMBER
        AX = 0040h
Return: AX = active video page (0000h-003Fh)
Note:   For FGDRIVER v1.10, this function was "FG_GETHPAGE" (see AX=0037h);
           "FG_GETPAGE" was AX=003Ch
SeeAlso: AX=002Fh,AX=0036h,AX=0037h,AX=0043h,AX=0095h

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