68302 Emulator Messages - HP 64746 User Manual

Emulation/analysis
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Chapter 13: Error Messages
Terminal Interface Messages
105
Monitor failure; halted
Cause: The monitor is unable to run because the processor is halted (due to an
external halt line or a halt instruction).
Action: Release the external halt and retry the operation. If the processor halted
due to a halt instruction, try the reset command, then retry the operation.
106
Monitor failure; wait state
Cause: The monitor is unable to run because the processor is in a continuous wait
state.
Action: A continuous wait state may indicate target system problems.
Troubleshoot the wait line. If you were running out of circuit, try initializing the
emulator, then retry the procedure.
107
Monitor failure; bus error
Cause: The monitor is unable to run because the processor has encountered a bus
fault (such as the 68302 /BERR line).
Action: Release the /BERR line and determine why it was activated.

68302 Emulator Messages

The following error messages are unique to the 68302 emulator.
140
Supervisor stack pointer not initialized
Cause: The supervisor stack pointer was not initialized to a value on the transition
from emulation reset to the monitor.
Action: Modify the emulator configuration to define a supervisor stack pointer
lying within an area mapped as RAM and reserved for stack space, and make the
transition from emulator reset to the monitor. Or, you can modify the supervisor
stack pointer directly by modifying the SSP register.
141
Foreground monitor operating in USER mode
Cause: The foreground monitor was found operating in the 68302 user program
state.
506

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