Count - HP 64751 User Manual

Chapter 11: Emulator/Analyzer Interface Commands

COUNT

COUNT
The analyzer trace depth is 1024 states. A state is a unique combination of address,
data, and status values occurring on the emulation bus simultaneously. When
counting is off, the analyzer can store 1024 states in the trace buffer. When
counting is on, the analyzer can only store 512 states in the trace buffer. That is
because the analyzer must now use two states in the trace buffer for each state
captured on the analyzer bus. One of the two states stores the state information
itself. The other state stores the count information associated with the state
information.
By default, all stored states are displayed. You can decrease the depth of the trace
display buffer to speed the display of the trace. The following command decreases
the trace display depth to 256 states:
display trace depth 256 <RETURN>
By default, the analyzer counting function is turned off.
anystate
This option allows you to set up the counting parameter for the analyzer to count
on any state.
off
This option turns off trace counting capability. As previously explained, turning
off counting provides a larger trace depth.
QUALIFIER
This is defined by you and used with the state option to define the states to be
captured by the analyzer.
state
This causes the emulation-bus analyzer to count occurrences of the specified state
during a trace measurement.
time
This option causes the emulation-bus analyzer to count the time between states
captured during the trace measurement.
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