Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
TTSBK
Control Block Contents
TTSBK DSECT
Cross Reference (Contains links to field and bit definitions)
TTSBK Prolog
NAME : HCPTTSBK DESCRIPTION: TRACE TABLE SAVE ENTRY FORMAT DSECT : TTSBK FUNCTION : THIS CONTROL BLOCK DEFINES THE FORMAT OF A 28-BYTE CP TRACE TABLE ENTRY, SAVED ONTO TAPE BY HSERV AND USED BY DVF FOR TRACE SERVICE TOOLS. THIS CONTROL BLOCK IS IDENTICAL TO THE FORMAT OF THE HARDWARE TRACE ENTRIES, EXCEPT THAT THE FIRST FULLWORD HAS BEEN REMOVED AND THE ID OF THE PRO- CESSOR GENERATING THE TRACE ENTRY HAS BEEN INCLUDED THE TRACE ENTRY HAS BEEN INCLUDED. IF THIS CONTROL BLOCK IS CHANGED, THE TTEBK MUST BE VERIFIED TO SEE IF THE SAME CHANGE EXISTS THERE. LOCATED BY : WORK REGISTERS IN HCPTSM (SAVES THE TRACE ENTRIES) CREATED BY : NOT APPLICABLE. DSECT DEFINES FORMAT USED BY TRACE INSTRUCTION. DELETED BY : NOT APPLICABLE.
TTSBK Control Block Content
TTSBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure TTSBK TRACE TABLE SAVE ENTRY FORMAT 0000 0 Bitstring 4 TTSTODCK LAST 4 BYTES OF TOD CLOCK 0004 4 Bitstring 1 TTSTYPE (0) Trace entry type 1... .... TTSTRACG X'80' First half of TRACG entry .... .... TTSTRACE X'00' Entire TRACE entry 0004 4 Bitstring 2 TTSCPUID ID OF THE PROCESSOR GENERATING THIS TRACE INSTRUCTION 0006 6 Bitstring 2 TTSCID TRACE ENTRY ID (IE 0A00=RUN USER) 0008 8 Signed 4 TTSDATA0 FIRST DATA FIELD PASSED (RX) 000C 12 Signed 4 TTSDATA1 SECOND DATA FIELD PASSED (RX+1) 0010 16 Signed 4 TTSDATA2 THIRD DATA FIELD PASSED (RX+2) 0014 20 Signed 4 TTSDATA3 FOURTH DATA FIELD PASSED (RX+3) 0018 24 Signed 4 TTSDATA4 FIFTH DATA FIELD PASSED (RX+4) 00000004 TTSSIZE (*-TTSBK+7)/8 :SIZE OF BLOCK IN DOUBLE WORDS 0000001C TTSLEN (*-TTSBK) :LENGTH OF BLOCK IN BYTES THE FOLLOWING IS A REDEFINITION OF THE FIRST TWO DATA AREAS (TTSDATA0,1) IS USED BY THE COMMUNICA- ENTRY 'FFCC'. THIS ENTRY IS ONLY USED BY TRACE SERVICE TOOLS (VIA TRSAVE), IT WILL NOT APPEAR IN THE SYSTEM TRACE TABLES. IT'S PURPOSE IS TO PROVIDE A FULL TOD CLOCK VALUE WHENEVER THE HIGH ORDER 2 FULLWORDS CHANGE. IT IS USED BY DVF TO FORMAT A COMPLETE TOD. 0008 8 Dbl-Word 8 TTSTODCM FULL 8-BYTE TOD ENTRY FOR COMMUNICATION TO DVF
TTSBK Storage Layout
*** TTSBK - TRACE TABLE SAVE ENTRY FORMAT * * +---------------------------+-------------+-------------+ * 0 | TTSTODCK | TTSCPUID | TTSCID | * +---------------------------+-------------+-------------+ * 8 | TTSDATA0 | TTSDATA1 | * +---------------------------+---------------------------+ * 10 | TTSDATA2 | TTSDATA3 | * +---------------------------+---------------------------+ * 18 | TTSDATA4 | 1C * +---------------------------+ * *** TTSBK - TRACE TABLE SAVE ENTRY FORMAT *** Overlay for TTSDATA0 in TTSBK * * +-------------------------------------------------------+ * 8 | TTSTODCM | * +-------------------------------------------------------+ * 10 * *** Overlay for TTSDATA0 in TTSBK
TTSBK Cross Reference
Symbol Dspl Value -------------- ---- ----- TTSCID 0006 TTSCPUID 0004 TTSDATA0 0008 TTSDATA1 000C TTSDATA2 0010 TTSDATA3 0014 TTSDATA4 0018 TTSLEN 0018 0000001C TTSSIZE 0018 00000004 TTSTODCK 0000 TTSTODCM 0008 TTSTRACE 0004 00 TTSTRACG 0004 80 TTSTYPE 0004
Copyright IBM Corporation, 1990, 2001