INT 5F - HP 95LX GRAPHICS PRIMITIVES - GET CURRENT GRAPHICS INFORMATION
        AH = 02h
        ES:DI -> graphics info record (see below)
Return: DX:AX -> filled graphics info record (for return to high-level langs)
Format of graphics info record:
Offset  Size    Description
 00h    BYTE    current video mode
 01h    BYTE    default video mode
 02h    WORD    display width in pixels
 04h    WORD    display height in pixels
 06h    WORD    current pen column
 08h    WORD    current pen row
 0Ah    WORD    current line type
 0Ch    WORD    current replacement rule
 0Eh    WORD    current pen color
 10h    WORD    current leftmost column of clip region
 12h    WORD    current rightmost column of clip region
 14h    WORD    current topmost row of clip region
 16h    WORD    current bottommost row of clip region
 18h    WORD    current column of logical origin
 1Ah    WORD    current row of logical origin
 1Ch  8 BYTEs   current fill mask