INT 13 - Super PC-Kwik v5.10+ - ??? AH = 9Ch SI = 4358h ??? Return: ??? Note: functions 9Ch and 9Dh are the only ones which are fully reentrant; all other PC-Kwik API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. calls (INT 13/81h-B0h) return AX=0200h and CF clear if a previous call is still in progress