INT 16 - Tandy 2000 - KEYBOARD - FLUSH KEYBOARD BUFFER AH = 04h Note: this interrupt is identical to INT 51 on the Tandy 2000 SeeAlso: INT 16/AH=00h,INT 16/AH=02h,INT 16/AH=05h"Tandy 2000" SeeAlso: INT 51"Tandy 2000"