12. Search for a valid abbreviation
or
truncation
of
a
CP
command.
For
example, if you create a command module
that
has the
same name as a
CMS nucleus-resident command, your
command module cannot
be
executed, since CMS locates the
nucleus-resident command first, and executes it. When a
user-written command has the same name as a
CMS
command module abbreviation, certain error messages may
indicate the
CMS command name, rather
than
the
program
name.
You can enter
CMS commands when you are running CMS
in your virtual machine, the terminal
is
idle, and the virtual
machine can accept input.
When
CMS
is
processing a previously entered command, the
keyboard remains unlocked for additional command input.
Note that in these circumstances the command you enter is
stacked in the terminal input buffer and
is
not
executed until
the command that
is
currently being executed completes.
If
more commands are entered than
CP
can handle, a NOT
ACCEPTED
message
is
displayed at the display terminal.
In
addition to the commands listed in the figures
that
follow,
there are three commands called Immediate commands that
are handled in a different manner from the others. They
may be entered while another command is being executed,
and they are executed immediately. The Immediate
commands are:
•
HT
- Halt typing
•
HX
- Halt execution
RT - Resume typing
7-58
VM/PC
Users Guide
To Next Page
Loading...
Need help?
General
