15-12
Expressions
Level Sensitive Searches
Level sensitive expressions search for when events defined in the
expression first become true. These expressions do not have a
trigger.
Level Sensitive Searching Example:
The search criteria is A low and B high. The expression searches
backwards from S1 at time 8.
VirSim stops at time 4 (Stop 1) the first time where the criteria became
true. If you push the search backwards arrow again from time 4,
VirSim stops at time 0 (Stop 2). The level sensitive search finds any
point where A is 0 and B is 1.
If you search forward from S1, VirSim stops at time 14 (Stop 3) where
the search criteria first became true. To view the results of the
expression in the Waveform Pane, drag the expression name into the
Signal Name Pane of the Waveform Window.
S1
Stop 1
Stop 2
Stop 3
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Time
Sig A
Sig B
Result
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