Debug Manual

Debug Commands
Debug Manual—421921-003
4-71
V Command
•
A disk process whose object code resides on the disk being debugged,
typically $SYSTEM.
•
The N option format always works for user processes and system input/output
processes (IOPs) other than those mentioned in the preceding list.
Examples
For examples that use the T command, see Appendix F, Sample Debug Sessions.
V Command
The V command enables you to access address spaces of other processes. The items
affected are the current code, current data, registers, and the Q segment. The Q
segment is the current selectable segment as viewed by Debug. The form of the V
command is:
expression-16
is the PIN of the desired process. If you omit expression-16, the current PIN
reverts to the one in use when the process entered Debug.
Particular V command values have meaning as follows:
V [ expression-16 ]
V returns to the current process’s values.
V -1 sets values as follows:
code = 5 (system code)
data = 1 (system global data)
Q = undefined
V pin sets values as follows:
code = pin’s code
data = pin’s data
Q = pin’s current in-use segment
registers = pin’s registers