XPST entry for TPSWPST macro
- Entry:
- XPST
- VIT option:
- PSS
- Event:
- TPSWPST macro
- VIT processing module:
- ISTRACPS
- Control is returned to:
- ISTAPCSP
This trace record identifies a VTAM® process (PAB) that is switching PSTs during
termination of a task. Switching PSTs causes the PAB to be scheduled
for dispatch under the new PST.
- Byte (hex)
- Contents
- 00–03
- Record ID: "XPST"
- 04
- ID is the primary address space ID (ASID). This field is 0 if the ASID is greater than X'FF'.
- 05
- 0
- 06
- PAB flag field (PABFLAGS)
- Bit
- Meaning
1... ....- PAB is unconditionally scheduled.
.1.. ....- PAB closedown is in progress.
..1. ....- PAB is synchronous.
...1 ....- PAB extension is present.
.... 1...- Do not dequeue work element.
.... .1..- Do not detach the RPH.
.... ..1.- Indicates a very extended PAB.
.... ...1- Indicates a slightly extended PAB.
- 07
- PAB flag field (PABFLGS1)
- Bit
- Meaning
1... ....- Switch the PST address of this PAB’s major control block to the new PST address contained in DYPNWPST.
.1.. ....- This PAB has a data space extension.
..1. ....- This PAB’s major control block is an FMCB.
...1 ....- PAB can be referenced in PSW disable mode.
.... 1...- PAB is persistent.
.... .1..- APSTERM/APSINIT FMCB during PAB dispatch.
.... ..xx- 0
- 08–0B
- New PST address under which this PAB will now be dispatched
- 0C–0F
- PAB address
- 10–13
- Address of the issuer of the TPSWPST macro
- 14–17
- PAB work element queue
- 18–1B
- Module name abbreviation or PAB DVT address
- 1C–1F
- Request parameter header (RPH) address or 0