INT 62 u - FGDRIVER v1.10 - "FG_DRAWREL" - DRAW SOLID LINE TO RELATIVE POSITION
        AX = 0026h
        BX = endpoint column offset
        CX = endpoint row offset
Notes:  this call is ignored in text modes
        the starting point is the current graphics cursor position; the cursor
          position is updated
SeeAlso: AX=0028h