STStart aa+ [D>=16]
aa = (now)
(SuperTimer Start) Captures the current value of the system timer and stores it in 3 bytes of RAM at address aa. (Normally aa would be declared in a defTIME24 directive). This instruction is not confined to use in a MultiTrack task.
SuperTimers are discussed in the MultiTrack tutorial
The address argument aa will be jndexed when executed inside a MultiTrack task and will be indexed if the instruction is preceded by the IasJ: precode.
Dialect exclusions: Not available in dialects before 16.