XB63 entry for extended buffer list SPAC
The XB63 trace record, as a continuation of the XB62 entry, contains additional information about an extended buffer list entry that is contained in a SPAC.
- Entry:
- XB63
- VIT option:
- XBUF
- Event:
- Extended buffer list SPAC
- VIT processing module:
- ISTITCXB
This trace record is a continuation of the XB62 entry. This record contains additional information about an extended buffer list entry that is contained in a SPAC.
- Byte (hex)
- Contents
- 00 - 03
- Record ID: C"XB63"
- 04 - 07
- Storage release routine XBUFLST SPAC address
- 08 - 0F
- XBUFLST SPAC address
- 10
- XBFLFLGS byte
- 11
- Version of the CSM buffer descriptor
- 12
- Buffer source
- 80
- ECSA
- 40
- Data space
- 20
- User data space
- 10
- User storage area other than a data space
- 08
- HVCOMM
- 13
- Buffer type
- 80
- Fixed
- 40
- Pageable
- 20
- Eligible to be made pageable
- 14 - 17
- Length of data
- 18 - 1F
- VTAM® I/O buffer address