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Chapter 7: Using the Emulation Analyzer
Using the Sequencer
Notice in the preceding trace (you may have to press <PREV> in order to see the
states captured prior to the trigger) that, in addition to states captured in the
sequence, "sq adv" is also shown next to states which cause a sequencer restart.
To trace "windows" of program execution
• Use the enable and disable options to the trace command.
Windowing refers to the analyzer feature that allows you to turn on, or enable, the
capturing of states after some state occurs then to turn off, or disable, the capturing
of states when another state occurs. In effect, windowing allows you capture
"windows" of code execution.
Windowing is different than storing states in a range (the only range option in the
trace command syntax) because it allows you to capture execution of all states in a
window of code whereas storing states in a range won't capture the execution of
subroutines that are called in that range or reads and writes to locations outside that
range.
When you use the windowing feature of the analyzer, the trigger state must be in
the window or else the trigger will never be found.
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