Debugger Option Trace - HP B1476 68020 User Manual

Debugger/emulator
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Chapter 12: Debugger Commands

Debugger Option Trace

Debugger Option Trace
The Debugger Option Trace command changes the default behavior of
bus-level tracing.
Count
If Count is Nothing , all of the trace memory will be used to store bus states.
If Count is Time , half of the trace memory will be used to store timing
information.
The debugger interface does not display timing information. Use the
emulator/analyzer interface to display timing.
Fetch_Align
The Fetch_Align option allows you to trigger a trace on an instruction's
address which never appears on the bus. For example, this might happen
when an instruction for a processor with a 32-bit bus lies between longword
boundaries. The Fetch_Align operation masks address values so that they
appear to occur on the boundaries appropriate for the processor's bus width.
Defaults are Count Nothing and Fetch_Align Long. If you are using 16-bit
memory with a 68030, you should specify Fetch_Align Word.
See Also
Information about "equivalent addresses" in your analyzer manual.
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