HP 64783A, User Manual

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Address translation error; write-protected page: <address> (Error 172)
Cause: The error occurred when the monitor attempted to access memory with the
MMU enabled. You requested the monitor to display or modify memory, or you
tried to exit the monitor and the memory access generated an access fault resulting
from an MMU address translation failure.
This error indicates that write access was denied to a write-protected page. NOTE:
Except for stacking on exit, any attempts to modify memory in write-protected
pages using the monitor will succeed as long as the translation tables reside in
RAM. The monitor will temporarily clear any write-protect flags in your
translation tables in order to force the access to be completed. If the monitor is
unable to clear the write-protect flags because the translation tables are in ROM,
you will see this error.
Action: Check the content of the write-protected page to see if it has been changed
by the attempted write transaction.
Analyzer Break (Async_Stat 613)
Cause: Status message. No action necessary.
Analyzer SIMMs are not all the same size; using smallest size (Status 1002)
Cause: Plug-in SIMMs are used to expand the trace depth to 64k or 256k states in
the deep analyzer. Four SIMMs, all of the same size must be used. If they are not
all the same size, the smallest SIMM size in the set of four will be used for trace
depth.
Action: No action necessary.
Arm term used more than once (Error 1250)
Cause: This error occurs when you attempt to use the “arm” qualifier more than
once in a sequencer branch expression.
Action: Reenter the trace command and specify the “arm” qualifier only once.
Ascii symbol download failed (Error 881)
Cause: This error occurs because the system is out of memory.
Action: You must either reduce the number of symbols to be loaded, or free up
additional system space and try the download again.
Chapter 12: Emulator Error Messages
Address translation error; write-protected page: <address> (Error 172)
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