Int E0  - Real/32 - "c_stat" - Return Default Console Input Status         [O]

   CL = 0Bh

Return: AX = status
       0000h no characters ready
       0001h character available
   may destroy SI,DI???

Note:  after setting bit 0 of the console mode word with C_MODE, this function
     will only return AX=0001h when the user presses Ctrl-C.