HP 64782, User Manual, Page: 205 / 554

Qualifying Trigger and Store Conditions
This section describes tasks relating to the qualification of trigger and storage
states.
You can trigger on, or store, specific states or specific values on a set of trace
signals (which are identified by trace labels).
Also, you can prestore states. The prestore qualifier is a second storage
qualifier used for storing states that occur before the normally stored states.
Prestore is useful for capturing entry points to procedures or for identifying
where global variables are accessed from.
This section describes how to:
•
Specify a trigger and set the trigger position.
•
Use address, data, and status values in trace expressions.
•
Enter a range in a trace expression.
•
Trigger on a number of occurrences of some state.
•
Break emulator on execution on the analyzer trigger.
•
Count states or time.
•
Define a storage qualifier.
•
Define a prestore qualifier.
•
Trace activity leading up to a program halt.
Expressions in Trace Commands
When modifying the analysis specification, you can enter expressions which
consist of values, symbols, and operators.
Values Values are numbers in hexadecimal, decimal, octal, or binary.
These number bases are specified by the following characters:
B b
Binary (example: 10010110b).
Q q O o
Octal (example: 377o or 377q).
D d (default) Decimal (example: 2048d or 2048).
H h
Hexadecimal (example: 0a7fh).
You must precede any hexadecimal number that begins with an A, B, C, D, E,
or F with a zero.
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