HP 64751 User Manual page 459

151
Supervisor stack pointer is odd or uninitialized
Supervisor stack is located in emulation ROM
Supervisor stack is located in guarded memory
Cause: You are using a foreground monitor, and you have attempted to run or step
when the stack pointer contains an odd value or when the stack pointer contains an
address that is mapped as emulation ROM or guarded memory.
Action: Make sure the stack pointer contains an even address value that is not
mapped as emulation ROM or guarded memory.
152
Foreground monitor had unexpected exception %d
Cause: The decimal number value of the vector offset (included with the message)
tells you what type of exception caused the message. For example, if a priviledged
opcode is attempted to be executed at the user access level, the decimal value 32 is
shown with this error message.
Action: Determine the cause of the exception.
155
Unable to verify trace vector; vector table in guarded memory
Cause: In order to step when using a foreground monitor, the trace vector must
contain the address of the monitor program's TRACE_ENTRY label (which equals
the monitor base address plus 800H). The step command reads the trace vector on
each step to make sure it contains the correct address value. This error occurs when
the vector table is in guarded memory.
Action: Make sure the vector table is not in an address range mapped as guarded
memory.
156
Unable to verify trace vector; vector table read failed
Cause: In order to step when using a foreground monitor, the trace vector must
contain the address of the monitor program's TRACE_ENTRY label (which equals
the monitor base address plus 800H). The step command reads the trace vector on
each step to make sure it contains the correct address value. This error occurs when
the vector table is in target memory and the read fails.
Action: Make sure the vector base register points to the correct location in target
memory and that the memory system is operating correctly.
Chapter 12: Error Messages
Terminal Interface Messages
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