INT 62 u - FGDRIVER v3.03 - "FG_REVMASK" - DISPLAY REVERSED IMAGE (MASKING MAP)
        AX = 0086h
        ES:BX -> array containing image stored as a masking map (see AX=001Dh)
        CX = number of pixel runs in masking map
        DX = width of masking map in pixels
Notes:  For FGDRIVER v1.10, this function was unused; "FG_REVMASK" was AX=0053h
        This call is ignored in text modes and in native EGA and VGA graphics
          modes
        The image is drawn with its lower left corner at the current graphics
          cursor position
SeeAlso: AX=000Fh,AX=001Dh,AX=002Ah,AX=0085h,AX=008Ch,AX=00A5h

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