HP 64746 User Manual page 504

Chapter 13: Error Messages
Terminal Interface Messages
Action: You must break the emulator's execution into the monitor before you can
enter the command.
61 Emulator is in the reset state
Cause: You have entered a command that requires the emulator to be running in
the monitor (for example, displaying registers).
Action: Enter the break command to cause the emulator to run in the monitor, and
enter the command that caused the error again.
80
Stack pointer is odd
Cause: You have attempted to modify the stack pointer to an odd value for a
processor that expects the stack to be aligned on a word boundary (such as the
68302).
Action: Modify the stack pointer to an even value.
81 Stack is in guarded memory
Cause: Your stack pointer pointed to a location in memory mapped as guarded;
you then attempted to run or step the emulation processor. The emulator was
unable to access the stack to complete the transition from the monitor to the user
program or vice versa.
Action: Either remap memory so the stack pointer points to a location in RAM, or
change the stack pointer value (either with your program or by configuring the
emulator's stack pointer value on reset) to point to a location in RAM.
82 Stack is in target ROM
Cause: Your stack pointer pointed to a location in memory mapped as target ROM;
you then attempted to run or step the emulation processor. The emulator was
unable to access the stack to complete the transition from the monitor to the user
program or vice versa.
Action: Either remap memory so the stack pointer points to a location in RAM, or
change the stack pointer value (either with your program or by configuring the
emulator's stack pointer value on reset) to point to a location in RAM.
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