ViewPoint Manual

Supplemental Information for D-Series Systems
ViewPoint Manual—426801-001
E-4
DP Command EXTSWAP Option
If HIGHPIN ON is specified, the process runs at high PIN if it has been converted to run
at high PIN. However, if the process has not been converted to run at high PIN, it runs
at low PIN. The HIGHPIN option default is ON.
Whether a process is designed to run at high or low PIN depends upon the HIGHPIN
object-file attribute. This attribute can be set either during compilation using a compiler
directive or after compilation using the BINDER program.
See the previous subsection, “Communication Between Low-PIN and High-PIN
Processes,” for further information on PINs. The Introduction to D-Series Systems and
the Guardian Application Conversion Guide provide more detailed background. The
HIGHPIN option is also explained in the TACL Reference Manual section describing
D-series features. HIGHPIN is a RUN command option.
DP Command EXTSWAP Option
The EXTSWAP option specifies the volume and, optionally, the file name that is used
for memory swaps of the process’ extended data, if any.
Following is an example of using this option at the TACL prompt:
TACL> DP APP /EXTSWAP EXT/
If the file EXT exists, it is used for swaps of the extended data segment during the
execution of APP. If the file does not exist, it is created and used for swaps. No volume
or subvolume was specified in the above example, so the system uses the =_DEFAULTS
DEFINE VOLUME settings for these defaults.
If a disk device is specified for a file name, a temporary file is created on the specified
disk device. If no file name or disk device is specified, the system uses the
=_DEFAULTS DEFINE SWAP settings as the default and creates a temporary file. If
there is no SWAP default, then the system places the temporary file wherever it chooses.
The EXTSWAP option is described in the TACL Reference Manual section describing
D-series changes. It is a RUN command option.
Modifications to Default Alternate-Events Filter
Figure E-2 (later in this section) is a printout of the default alternate-events filter
supplied with D-series ViewPoint. Following are the changes to the C21 default filter
with the release of the D-series operating system. For more information, see Section 6,
Customizing ViewPoint.
•
The D-series token ZEMS-TKN-XSENDERID or ZEMS-TKN-XSENDERID-PD
replaces C-series token ZEMS-TKN-SENDERID.
•
CPU and PIN values are now obtained from the token ZEMS-TKN-XSENDERID
or ZEMS-TKN-XSENDERID-PD instead of from the ZEMS-TKN-SYSPID and
ZEMS-TKN-CRTPID tokens.
•
The DECOMPOSE function is used to extract a process name or system name from
a token. DECOMPOSE extracts this information from the process descriptor as
described previously in the Section, “Process Descriptor.”