[PC] [XT] [AT] Expects: AH 01H CX,DX desired tick-count setting ────────────────────────────────────────────────────────────────── Returns: AH 0 CF NC (0) if no error CY (1) on invalid setting ────────────────────────────────────────────────────────────────── Info: Sets the system clock top the specified tick-count. Also clears the timer overflow flag at 0040:0070. See Also: INT 1aH (BIOS Time I/O) DOS fn 2cH (get system time) ROM-BIOS Functions -♦-