INT 16 - KEYBOARD - CHECK FOR ENHANCED KEYSTROKE (enh kbd support only) AH = 11h Return: ZF set if no keystroke available ZF clear if keystroke available AH = BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. scan code AL = ASCII character Notes: if a keystroke is available, it is not removed from the keyboard buffer unlike AH=01h, this function does not discard extended keystrokes some versions of the IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. Technical Reference erroneously report that CF is returned instead of ZF INT 16/AH=09h can be used to determine whether this function is supported, but only on later model PSIBM PS/2, any model/2s SeeAlso: AH=01h,AH=09h,AH=10h,AH=21h,INT 09,INT 15/AH=4Fh