INT 62 u - FGDRIVER v1.10 - "FG_BOX" - DRAW UNFILLED RECTANGLE
        AX = 00A2h
        BX = left column
        CX = right column
        DX = top row
        SI = bottom row
Notes:  FGDRIVER is the external video driver for the shareware
          Fastgraph/Light by Ted Gruber Software
        the rectangle is drawn in screen space, respecting the clipping region,
          width edges of the width specified with AX=00A3h (default = 1 is set
          by "FG_SETMODE")
        this function has no effect in text modes
SeeAlso: AX=002Ch,AX=002Eh,AX=0030h,AX=00A3h