Dm - Debug Mode; General - GE 68K System User Manual

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DM - Debug Mode

þ
CPM
Platform
Use this command to enable or disable product-specific debugging modes.
Description
•
For the 68020, (D20M) and 68EC030 (D20 ME) it disables the on-chip
instruction cache.
•
For the 68332, (CPM) it enables show cycles.
When enabled, both of these debug mode instructions allow external bus monitoring.
Below is usage and syntax information for this command
Syntax
Command Format
Variables
Parameters
Example
Special
Considerations
3-28
þ þ
D20 D20 ME
D20 Base D20 Base
dm /(d | e)
/d =
/e =
None.
Type dm /e and press enter.
Results: This command disables the 68020 or 68EC030 on-
chip instruction cache or, enables show cycles for
the 68332.
The system returns the prompt upon completion of
this instruction.
Enabling the Debug Mode degrades the performance of the
system and may cause certain CPU intensive commands to
activate the watchdog and reset the system.
SWM0023 1.00 2
o o
D20/200
CCU Base
disable debug mode (Enable cache or disable
show cycles)
enable debug mode (disable cache or enable
show cycles)
68K System Monitor
User's Guide
o
D20/200 ME D25
CCU Base

General

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