Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
TBFBK
Control Block Contents
TBFBK DSECT
Cross Reference (Contains links to field and bit definitions)
TBFBK Prolog
NAME : HCPTBFBK DESCRIPTION: Trace service tool Buffer Format Block DSECT : TBFBK FUNCTION : Contains the format of the buffers used to save merged entries from the trace table onto tape CREATED BY : Not applicable DELETED BY : Not applicable NOTES : USED BY - HCPTSI : When building the buffers for * use by HCPTSMRG * HCPTSMRG : When merging trace entries * HCSTSF : When reading the buffers from * tape * HCSTSS : Trace read system services * HCSTSV : Trace read tape processor
TBFBK Control Block Content
TBFBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure TBFBK Trace service tool Buffer Format Block 0000 0 Dbl-Word 8 TBFTOD Time of day clock 0008 8 Character 24 TBFVERST Verification string 0020 32 Signed 4 TBFZONE TIME ZONE DIFFERENTIAL (FROM SYSZONE) 0024 36 Bitstring 28 TBFDATA (145) 145 28-byte trace entries 00000200 TBFSIZE (*-TBFBK+7)/8 TBFBK size in doublewords
TBFBK Storage Layout
*** TBFBK - Trace service tool Buffer Format Block * * +-------------------------------------------------------+ * 0 | TBFTOD | * +-------------------------------------------------------+ * 8 | | * = TBFVERST = * | | * +---------------------------+---------------------------+ * 20 | TBFZONE | | * +---------------------------+ | * 28 | | * = TBFDATA = * | | * +-------------------------------------------------------+ *1000 * *** TBFBK - Trace service tool Buffer Format Block
TBFBK Cross Reference
Symbol Dspl Value -------------- ---- ----- TBFDATA 0024 TBFSIZE 0024 00000200 TBFTOD 0000 TBFVERST 0008 TBFZONE 0020
Last updated on 5 Jun 2001 at 16:57:26 EDT.
Copyright IBM Corporation, 1990, 2001