0:440h                   Motor Off Counter

Length: 1 byte

Keeps count of the number of ticks (18.2 ticks per second) before the
diskette motor is turned off. INT 08h decrements this count every time
it is executed, if a motor is on. After this value reaches 0, the
motor is turned off and the Diskette Motor Status byte (0:43Fh) is
adjusted.

See also: INT 08h
See also: 0:43Fh

0:440h Motor Off Counter