CVTSECT Back to Index page
 
Prolog 
Control Block Contents 
   CVTSECT DSECT
   CVTXTNT2 DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This page documents intended Programming Interfaces that
allow the customer to write programs to obtain the services of z/VM.


  CVTSECT Prolog Top of page
 
 NAME       : CMSCVT
 DESCRIPTION: Communications Vector Table
 DSECT      : CVTSECT
 FUNCTION   : CVTSECT simulates the OS Communications Vector
              Table as supported by CMS. CVTSECT is called by
              the CMSCVT macro. The ACMSCVT field in NUCON
              points to CMSCVT.
 
 
  CVTSECT Control Block Content Top of page
 

 CVTSECT DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure CVTSECT Communications Vector Table ** COMMUNICATION VECTOR TABLE AS SUPPORTED BY CMS 0000 0 Signed 2 * - RESERVED 0002 2 Signed 2 CVTMDL - CPU MODEL ID 0004 4 Character 4 * VM SYSTEM PRODUCT RELEASE ** END OF CVT PREFIX AREA 0008 8 Dbl-Word 8 CMSCVT (0) - CVT START 0008 8 Address 4 * Simulated CEL Anchor linkage 000C 12 Signed 4 * - NOT SUPPORTED 0010 16 Signed 4 CVTLINK - RESERVED 0014 20 Signed 4 * (11) - NOT SUPPORTED 0040 64 Decimal 4 CVTDATE - CURRENT DATE IN PACKED DECIMAL 0044 68 Signed 4 * (3) - NOT SUPPORTED 0050 80 Address 4 * - NOT SUPPORTED 0054 84 Signed 4 CVTVPRM (0) - VECTOR FACILITY PARAMETERS 0054 84 Signed 2 CVTVSS - VECTOR SECTION SIZE 0056 86 Signed 2 CVTVPSM - VECTOR PARTIAL SUM NUMBER 0058 88 Bitstring 2 CVTEXIT - AN SVC 3 INSTRUCTION (EXIT) 005A 90 Bitstring 2 CVTBRET - A BCR 15,14 INSTRUCTION 005C 92 Signed 4 * (8) - NOT SUPPORTED 007C 124 Address 1 CVTDCB System is XA+CMS 1... .... CVTMVSE X'80' CVTMVSE - S/370-XA mode execution .1.. .... CVT1SSS X'40' CVT1SSS - Option 1 (PCP) SSS also CMS ..1. .... CVT2SPS X'20' CVT2SPS - Option 2 (MFT) or VSE on VM .... 1... CVTOSEXT X'08' CVTOSEXT - indicator that the CVTOSLVL area is present and may be referenced. 007D 125 Signed 3 * - NOT SUPPORTED 0080 128 Signed 4 CVTR13 - R13 SAVED DURING 'OPEN' 0084 132 Signed 4 * - NOT SUPPORTED 0088 136 Address 4 CVTNUCB - RESERVED 008C 140 Signed 4 * (2) - NOT SUPPORTED 0094 148 Address 4 CVTECVT ADDR OF EXTENDED CVT 0098 152 Signed 4 * (5) - NOT SUPPORTED 00AC 172 Address 4 CVTMZ00 - HIGHEST STORAGE ADDRESS IN MACHINE 00B0 176 Signed 4 * (3) - NOT SUPPORTED 00BC 188 Bitstring 2 * - NOT SUPPORTED 00BE 190 Bitstring 2 CVTOPTA - BIT 7 - EXT-PREC FP HRDWRE IN CPU 00C0 192 Signed 4 * (2) - NOT SUPPORTED 00C8 200 Address 4 * (2) - NOT SUPPORTED 00D0 208 Address 4 CVTABEND ADDR OF SECONDARY CVT 00D4 212 Signed 4 CVTUSER - FIELD AVAILABLE TO USER 00D8 216 Signed 4 * (7) - NOT SUPPORTED 00F4 244 Signed 4 CVTGTF GENERALIZED TRACE FACILITY 00F8 248 Signed 4 * (2) - NOT SUPPORTED 0100 256 Address 4 CVTSAF ADDR OF SAF VECTOR TABLE 0104 260 Signed 4 * - NOT SUPPORTED 0108 264 Address 4 CVTACBM ADDR OF CBMM ROUTINE 010C 268 Signed 4 * (11) NOT SUPPORTED 0138 312 Bitstring 4 CVTTZ DIFFERENCE BETWEEN LOCAL TIME AND GREENWICH MEAN TIME 013C 316 Signed 4 * (5) -NOT SUPPORTED- 0150 336 Address 4 CVTEXT2 ADDR OF OS/VS2 COMMON EXTENSION 0154 340 Signed 4 * (2) -NOT SUPPORTED- 015C 348 Character 8 CVTSNAME SYSTEM NAME FOR CURRENT CONFIG 0164 356 Signed 4 * (7) -NOT SUPPORTED- 0180 384 Address 4 CVTFLAGS (0) - SYSTEM GLOBAL FLAGS 0180 384 Address 1 CVTFLAG1 - -NOT SUPPORTED- 0181 385 Address 1 CVTFLAG2 - FLAG BYTE 2 1... .... CVTCMPSC X'80' CVTCMPSC - Compression Services supported .1.. .... CVTCMPSH X'40' CVTCMPSH - 'CMPSC' HW instruction available 0182 386 Bitstring 1 CVTFLAG3 - -NOT SUPPORTED- 0183 387 Bitstring 1 CVTFLAG4 - -NOT SUPPORTED- 0184 388 Signed 4 * (23) -NOT SUPPORTED- 01E0 480 Signed 4 CVTSTCK TSO STACK ADDR 01E4 484 Signed 4 * (74) -NOT SUPPORTED- 030C 780 Address 4 CVTXSFT ADDR OF SYSTEM FUNCTION TABLE 0310 784 Signed 4 * (92) -NOT SUPPORTED- 0480 1152 Address 4 CVTSREGN ADDR OF VSM REGION SIZE ROUTINE 0484 1156 Signed 4 * (17) -NOT SUPPORTED- 04C8 1224 Address 4 CVTDFA ADDR OF DFP ID TABLE 04CC 1228 Signed 4 * (11) -NOT SUPPORTED- 04F8 1272 Bitstring 16 CVTOSLVL (0) SYSTEM LEVEL INDICATORS BYTE 0 OF CVTOSLVL has... 04F8 1272 Address 1 CVTOSLV0 System ESA & Data Spaces 1... .... CVTXAX X'80' CVTXAX 'EXTENDED XA' = ESA/370 SUPPORTED ...1 .... CVTHIPER X'10' CVTHIPER HIPERSPACES ARE SUPPORTED .... .1.. CVTCADS X'04' CVTCADS COMMON DATA SPACES SUPPORTED 04F9 1273 Address 1 CVTOSLV1 BYTE 1 OF CVTOSLVL 04FA 1274 Address 1 CVTOSLV2 BYTE 2 OF CVTOSLVL 1... .... CVTJ6604 X'80' CVTJ6604 OS/390 R4 04FB 1275 Address 1 CVTOSLV3 BYTE 3 OF CVTOSLVL 04FC 1276 Address 1 CVTOSLV4 BYTE 4 OF CVTOSLVL 04FD 1277 Address 1 CVTOSLV5 BYTE 5 OF CVTOSLVL 04FE 1278 Address 1 CVTOSLV6 BYTE 6 OF CVTOSLVL 04FF 1279 Address 1 CVTOSLV7 BYTE 7 OF CVTOSLVL 0500 1280 Address 1 CVTOSLV8 BYTE 8 OF CVTOSLVL 0501 1281 Address 1 CVTOSLV9 BYTE 9 OF CVTOSLVL 0502 1282 Address 1 CVTOSLVA BYTE 10 OF CVTOSLVL 0503 1283 Address 1 CVTOSLVB BYTE 11 OF CVTOSLVL 0504 1284 Address 1 CVTOSLVC BYTE 12 OF CVTOSLVL 0505 1285 Address 1 CVTOSLVD BYTE 13 OF CVTOSLVL 0506 1286 Address 1 CVTOSLVE BYTE 14 OF CVTOSLVL 0507 1287 Address 1 CVTOSLVF BYTE 15 OF CVTOSLVL OS/VS2 COMMON EXTENSION ADDRESS OF EXTENSION IS IN CVTREXT2
 CVTXTNT2 DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure CVTXTNT2 Communications Vector Table 0000 0 Character 4 CVT2R000 RESERVED - EYECATCHER 0004 4 Signed 4 * (13) -NOT SUPPORTED- 0038 56 Dbl-Word 8 CVTLDTO (0) LOCAL TIME/DATE OFFSET 0038 56 Signed 4 CVTLDTOL HIGH WORD 003C 60 Signed 4 CVTLDTOR LOW WORD 0040 64 Signed 4 * (17) -NOT SUPPORTED- END OF CVT
 
 
  CVTSECT Storage Layout Top of page
 
          
*** CVTSECT - Communications Vector Table
*
*     +-------------+-------------+---------------------------+
*   0 |/////////////|   CVTMDL    |///////////////////////////|
*     +-------------+-------------+---------------------------+
*   8 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  10 |         CVTLINK           |///////////////////////////|
*     +---------------------------+///////////////////////////|
*  18 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
*  40 |         CVTDATE           |///////////////////////////|
*     +---------------------------+///////////////////////////|
*     |///////////////////////////////////////////////////////|
*     +---------------------------+-------------+-------------+
*  50 |///////////////////////////|   CVTVSS    |  CVTVPSM    |
*     +-------------+-------------+-------------+-------------+
*  58 |  CVTEXIT    |  CVTBRET    |///////////////////////////|
*     +-------------+-------------+///////////////////////////|
*  60 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+------+--------------------+
*  78 |///////////////////////////|CVTDCB|////////////////////|
*     +---------------------------+------+--------------------+
*  80 |          CVTR13           |///////////////////////////|
*     +---------------------------+---------------------------+
*  88 |         CVTNUCB           |///////////////////////////|
*     +---------------------------+---------------------------+
*  90 |///////////////////////////|         CVTECVT           |
*     +---------------------------+---------------------------+
*  98 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+---------------------------+
*  A8 |///////////////////////////|         CVTMZ00           |
*     +---------------------------+---------------------------+
*  B0 |///////////////////////////////////////////////////////|
*     |///////////////////////////+-------------+-------------+
*  B8 |///////////////////////////|/////////////|  CVTOPTA    |
*     +---------------------------+-------------+-------------+
*  C0 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  C8 |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
*  D0 |         CVTABEND          |         CVTUSER           |
*     +---------------------------+---------------------------+
*  D8 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+---------------------------+
*  F0 |///////////////////////////|          CVTGTF           |
*     +---------------------------+---------------------------+
*  F8 |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
* 100 |          CVTSAF           |///////////////////////////|
*     +---------------------------+---------------------------+
* 108 |         CVTACBM           |///////////////////////////|
*     +---------------------------+///////////////////////////|
* 110 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
* 138 |          CVTTZ            |///////////////////////////|
*     +---------------------------+///////////////////////////|
*     |///////////////////////////////////////////////////////|
*     |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
* 150 |         CVTEXT2           |///////////////////////////|
*     +---------------------------+---------------------------+
* 158 |///////////////////////////|        CVTSNAME-          |
*     +---------------------------+---------------------------+
* 160 |          -(15C)           |///////////////////////////|
*     +---------------------------+///////////////////////////|
* 168 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +------+------+------+------+---------------------------+
* 180 |:FLAG1|:FLAG2|:FLAG3|:FLAG4|///////////////////////////|
*     +------+------+------+------+///////////////////////////|
* 188 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
* 1E0 |         CVTSTCK           |///////////////////////////|
*     +---------------------------+///////////////////////////|
* 1E8 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+---------------------------+
* 308 |///////////////////////////|         CVTXSFT           |
*     +---------------------------+---------------------------+
* 310 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
* 480 |         CVTSREGN          |///////////////////////////|
*     +---------------------------+///////////////////////////|
* 488 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
* 4C8 |          CVTDFA           |///////////////////////////|
*     +---------------------------+///////////////////////////|
* 4D0 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +------+------+------+------+------+------+------+------+
* 4F8 |:OSLV0|:OSLV1|:OSLV2|:OSLV3|:OSLV4|:OSLV5|:OSLV6|:OSLV7|
*     +------+------+------+------+------+------+------+------+
* 500 |:OSLV8|:OSLV9|:OSLVA|:OSLVB|:OSLVC|:OSLVD|:OSLVE|:OSLVF|
*     +------+------+------+------+------+------+------+------+
* 508
*
*** CVTSECT - Communications Vector Table
          
*** CVTXTNT2 - Communications Vector Table
*
*     +---------------------------+---------------------------+
*   0 |         CVT2R000          |///////////////////////////|
*     +---------------------------+///////////////////////////|
*   8 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
*  38 |         CVTLDTOL          |         CVTLDTOR          |
*     +---------------------------+---------------------------+
*  40 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+---------------------------+
*     |///////////////////////////| 84
*     +---------------------------+
*
*** CVTXTNT2 - Communications Vector Table
 
 
  CVTSECT Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
CMSCVT         0008
CVTABEND       00D0
CVTACBM        0108
CVTBRET        005A
CVTCADS        04F8 04
CVTCMPSC       0181 80
CVTCMPSH       0181 40
CVTDATE        0040
CVTDCB         007C
CVTDFA         04C8
CVTECVT        0094
CVTEXIT        0058
CVTEXT2        0150
CVTFLAGS       0180
CVTFLAG1       0180
CVTFLAG2       0181
CVTFLAG3       0182
CVTFLAG4       0183
CVTGTF         00F4
CVTHIPER       04F8 10
CVTJ6604       04FA 80
CVTLDTO        0038
CVTLDTOL       0038
CVTLDTOR       003C
CVTLINK        0010
CVTMDL         0002
CVTMVSE        007C 80
CVTMZ00        00AC
CVTNUCB        0088
CVTOPTA        00BE
CVTOSEXT       007C 08
CVTOSLVA       0502
CVTOSLVB       0503
CVTOSLVC       0504
CVTOSLVD       0505
CVTOSLVE       0506
CVTOSLVF       0507
CVTOSLVL       04F8
CVTOSLV0       04F8
CVTOSLV1       04F9
CVTOSLV2       04FA
CVTOSLV3       04FB
CVTOSLV4       04FC
CVTOSLV5       04FD
CVTOSLV6       04FE
CVTOSLV7       04FF
CVTOSLV8       0500
CVTOSLV9       0501
CVTR13         0080
CVTSAF         0100
CVTSNAME       015C
CVTSREGN       0480
CVTSTCK        01E0
CVTTZ          0138
CVTUSER        00D4
CVTVPRM        0054
CVTVPSM        0056
CVTVSS         0054
CVTXAX         04F8 80
CVTXSFT        030C
CVT1SSS        007C 40
CVT2R000       0000
CVT2SPS        007C 20
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 16:00:39 EDT.
Copyright IBM Corporation, 1990, 2022