Introduction
The system clock, as accessed by OS_Word 1 and 2, is no longer a pair of incrementing timers. Because of this the 'timer switch' state (OS_Byte 243) is no longer used and will return a constant value.
The system clock is not related to the interval timer (OS_Word 3,4) or to the monotonic time (OS_ReadMonotonicTime) except that all are triggered at 100Hz.