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FiftyMsecTick |
Variable (ROM Call 0x4FC) |
A counter incremented by the standard system auto-int 5 routine.
FiftyMsecTick represents the number of times the standard system
AUTO_INT_5 routine was executed since the last reset,
if FiftyMsecTick was not modified. Indeed, this variable is changed only by a routine called
at reset, and by the system routine for auto-int 5.
This variable is a way to measure a delay, without using a system timer with
OSFreeTimer,
OSRegisterTimer,
OSTimerCurVal,
OSTimerExpired, and
OSTimerRestart.
Note also that unlike all the other system timers, FiftyMsecTick is a countup timer.
Partially emulating FiftyMSecTick on AMS 1.xx is easy with the functions from
intr.h. However, to fully emulate the functionality, a
memory-resident (TSR) program has to be installed.