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Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
SNTBK
Control Block Contents
SNTBK DSECT
Cross Reference (Contains links to field and bit definitions)
SNTBK Prolog
NAME : HCPSNTBK
DESCRIPTION: System Name Table Block
DSECT : SNTBK
FUNCTION : This block is used to keep track of a system data
file that is brought into the system.
LOCATED BY : The pointer to this chain of blocks is located in
HCPNSU, using NSUNSYAN for NSSs, NSUNSGAN for
DCSSs, NSUIMGAN for images, and NSUNLSAN for
NLS files.
- In HCPSHRBK, pointer SHRSNTPT will point to the
associated HCPSNTBK.
Pointer SHRLSSA will point to the segment space
through which the shared segment was loaded.
- In HCPPGMBK, using the PGMVM pointer will point to the
associated HCPSNTBK.
- SNTFWDPT will point to the next HCPSNTBK in the chain.
- The end of chain is located when the SNTFWDPT equals
the address of NSUNSYAN, NSUNSGAN OR NSUIMGAN.
- In HCPIMGBK, IMGSNTBK will point to the
associated HCPSNTBK.
CREATED BY : HCPNSL when loading the NSS or DCSS for the first
time.
- HCPNSD will build this block for the duration of the
processing of the DEFSEG and DEFSYS commands.
- HCPNSS will build this block for the duration of the
processing of the SAVESEG and SAVESYS commands.
- HCPNSI will build this block for the duration
of processing of the diagnose X'74' instruction
to save or load an image, and the diagnose
X'CC' instruction to create an NLS message
repository.
- HCPNSR will build this block when opening an
image library or NLS message repository file.
DELETED BY : HCPNSP will delete this block when the count fields
of an NSS or DCSS go to zero. The fields are
SNTUSRSH and SNTUSREX.
- HCPNSD will delete this block after processing
the DEFSEG or DEFSYS command.
- HCPNSS will delete this block after processing the
SAVESEG or SAVESYS command.
- HCPNSI will delete this block after processing
diagnose X'74' to save or load an image, or
diagnose X'CC' to create an NLS message
repository.
- HCPNSR will delete this block when closing the
image library or NLS message repository.
RELOCATION CONSIDERATIONS : None
COMMENTS :
- The size of this block is 4K, a page of storage.
- *****NOTE***** This control block maps the
descriptor page for certain system data files.
Extreme care must be exercised when updating this
block, to avoid causing files created prior to
the update to break. Changes must be made in an
upward-compatible way
- Two formats (31-bit and 64-bit) of the SNTBK are
defined here. The 31-bit format is an old format
that exists only on spool for a below-2G NSS,
DCSS, NLS, or IMG. When a 31-bit format SNTBK is
read-in it is converted to 64-bit format by
HCPNSBTG. Similarly, when a below-2G file is
written out, HCPNSBGT converts it from 64-bit
format to 31-bit format before the write is done.
All in-storage accesses of the SNTBK block by CP
are done using the 64-bit format. When converting
between the 31-bit and 64-bit formats, HCPNSB
uses only a subset of the original 31-bit field
names (specifically those defined at the
higher-level encapsulating several smaller
fields). As a result, some of the 31-bit field
names are no longer referenced by CP and have
been "removed" or "reserved" as indicated in the
list below. See PITS 2U00987 for more details.
Reserved --> points to labels that have been
removed, but their corresponding DS statements
are still used as "Reserved" declarations to
preserve SNTBK offsets.
Removed --> points to labels and EQUates that
have been completely removed, for doing so
does not disrupt SNTBK offsets.
31-bit format 64-bit format
SNTMEMSR(3-word) SNTMSRG(5-word)
SNTSTPAG(32-bit) SNTSTPGG(64-bit)_
SNTENPAG(32-bit) SNTENPGG(64-bit)
eserved --> SNTLODCT(32-bit) SNTLODCG(32-bit)
SNTCPNTL(32-bit) SNTCPNTG(32-bit)
SNTNOTAM(32-bit) SNTNOTAG(32-bit)
SNTMENVF(1-byte) SNTMENVG(1-byte)
SNTRANGE(2-word) SNTRANGG(4-word)
SNTPRMAX(=128) SNTPRMXG(=64)
SNTRANS (32-bit) SNTRANSG(64-bit)
Removed --> SNTRSNOF(3-byte) SNTRSNOG(7-byte)
Removed --> SNTRNGFG(1-byte) SNTRGFGG(1-byte)
SNTRANE (32-bit) SNTRANEG(64-bit)
SNTMEMDA(4-word) SNTMEMDG(6-word)
SNTMSSNM(2-word) SNTMSSNG(2-word)
SNTMEMST(32-bit) SNTMEMSG(64-bit)
Removed --> SNTMEMSP(3-byte) SNTMSPG (7-byte)
Removed --> SNTMSTAT(1-byte) SNTMSTAG(1-byte)
SNTMSSA (32-bit) SNTMSSAG(32-bit)
SNTBK Control Block Content
SNTBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SNTBK System Name Table Block 0000 0 Dbl-Word 8 SNTASM0 (128) General Information SNTBK/SHRBK queue lock (SNTSHRLK) 0400 1024 Dbl-Word 8 SNTASM1 (128) Reserved 0800 2048 Dbl-Word 8 SNTASM2 (128) Page Range Information Segment Space Member List 0C00 3072 Dbl-Word 8 SNTASM3 (128) Member's Segment Space List Variable list of ASAs for Image Files | | | SNTASM0 - General Information | | - SNTBK/SHRBK queue lock (SNTSHRLK) | | | 0000 0 Address 4 SNTFWDPT Forward pointer to the next SNTBK. 0004 4 Address 4 SNTBCKPT Backward pointer to the next SNTBK. 0008 8 Character 12 SNTNAMFL (0) This field used to move the following two fields in HCPNSBWD. 0008 8 Character 8 SNTNAME Name of the NSS, DCSS, image, or NLS. 0010 16 Signed 4 SNTFLAGS (0) Flags for the SNTBK. 0010 16 Bitstring 1 SNTTYPFG Type information flag. 1... .... SNTRSTD X'80' SNTRSTD Indicates that this NSS or DCSS has restricted use and must have a NAMESAVE entry in the user's directory. .1.. .... SNTCPUSE X'40' SNTCPUSE Indicates that this is a CP NSS/DCSS - meaning CP will write to the parts of this NSS/DCSS with ranges defined as 'SC'. ..1. .... SNTLSS X'20' SNTLSS This bit indicates that this is a segment space definition that contains member saved segments. ...1 .... SNTMSS X'10' SNTMSS This bit indicates that this is a member saved segment definition. NOTES : If both SNTLSS and SNTMSS are off then this is a named saved segment. .... 1... SNTNLS X'08' SNTNLS This is an NLS. .... .1.. SNTIMG X'04' SNTIMG This is an Image. .... ..1. SNTSYS X'02' SNTSYS This is an NSS. .... ...1 SNTSEG X'01' SNTSEG This is a DCSS. 1... .... SNTRSTD X'80' SNTRSTD Indicates that this NSS or DCSS has restricted use and must have a NAMESAVE entry in the user's directory. .1.. .... SNTCPUSE X'40' SNTCPUSE Indicates that this is a CP NSS/DCSS - meaning CP will write to the parts of this NSS/DCSS with ranges defined as 'SC'. ..1. .... SNTLSS X'20' SNTLSS This bit indicates that this is a segment space definition that contains member saved segments. ...1 .... SNTMSS X'10' SNTMSS This bit indicates that this is a member saved segment definition. NOTES : If both SNTLSS and SNTMSS are off then this is a named saved segment. .... 1... SNTNLS X'08' SNTNLS This is an NLS. .... .1.. SNTIMG X'04' SNTIMG This is an Image. .... ..1. SNTSYS X'02' SNTSYS This is an NSS. .... ...1 SNTSEG X'01' SNTSEG This is a DCSS. 0011 17 Bitstring 1 SNTSTAFG Status information flag. .... .1.. SNTABEND X'04' SNTABEND This bit indicates that an abend should be issued when the Auxiliary Storage Manager or Real Storage Manager in use counts are not the same. .... ...1 SNTPENDP X'01' SNTPENDP This bit indicates that the NSS, DCSS, image, or NLS file should be purged when the total user count goes to zero. The following are the flags that indicate status. The field below, SNTENVFG, is kept in this block for compatibility only. It has been superceded by SNTMENVG. The values in this field should not be used in code other than the compatibility code currently referencing it. This field is defined to contain the virtual machine mode in which the NSS was saved. It therefore can have only one value. The field that supercedes this one, SNTMENVF/SNTMENVG, was defined as indicating which virtual machine modes were specified on the DEFSYS command. It now is defined as indicating in which mode(s) the NSS can be IPLed. 0012 18 Bitstring 1 SNTENVFG Flag information byte 00000001 SNT370MD X'01' SNT370MD Indicates a 370 mode machine 00000002 SNTESAMD X'02' SNTESAMD Indicates an ESA-370 mode machine 00000004 SNTXCMD X'04' SNTXCMD Indicates an ESA/XC mode machine 0013 19 Bitstring 1 SNTTYPF2 Type information byte 2. 1... .... SNTSHWRT X'80' SNTSHWRT Indicates that there at least one shared writeable page range (SW or SN). .1.. .... SNTVMGRP X'40' SNTVMGRP Indicates that a VMGROUP attribute is assigned to this NSS. ..1. .... SNTLNSHR X'20' SNTLNSHR Indicates that any user is allowed to load an exclusive version of this saved segment. Note that this bit is only valid for DCSS and segment space SNTBKs. To update the SNTUSRSH or SNTUSREX count for NSSs or saved segments the SNTBK-SHRBK Queue lock (SNTSHRLK) must be held exclusively. 0014 20 Signed 2 SNTUSRSH Count of NSS or DCSS users in shared mode or count of all users of an image library. 0016 22 Signed 2 SNTUSREX Count of NSS or DCSS users in exclusive mode. NOTES : SNTUSRSH + SNTUSREX = The number of loads of this name. This is the number of SHRBKs on this SNTBK's SHRBK chain. 0018 24 Address 4 SNTSTLPT Pointer to the STLBK. It contains PGMBK info 001C 28 Address 4 SNTSDFBK Pointer to the SDFBK. Used to communicate with the SDF system. 0020 32 Signed 4 * Reserved for IBM use. The following field SNTCOUNT is used to allow a move of the following fields in HCPNSBWD: SNTMINSZ, SNTRNGCT, SNTDESCT, SNTENVCT, SNTKEYCT, SNTSTRCT, SNTNDTCT, SNTPRFLG, Reserved byte, SNTPREGS 0024 36 Character 32 SNTCOUNT (0) 0024 36 Signed 4 SNTMINSZ Indicates the minimum size in which the NSS can be IPLed. 0028 40 Signed 4 SNTRNGCT Count of valid page range entries for an NSS or DCSS. 002C 44 Signed 4 SNTDESCT Count of descriptor pages defined for an NSS, DCSS, image, or NLS file. 0030 48 Signed 4 SNTENVCT Count of environment pages for an NSS. 0034 52 Signed 4 SNTKEYCT Count of key pages for an NSS or DCSS. 0038 56 Signed 4 SNTSTRCT Count of storage pages saved for an NSS, DCSS, image, or NLS file. 003C 60 Signed 4 SNTNDTCT Count of storage pages defined with the no-data-saved attribute. This count is not calculated until the NSS or DCSS is saved. The total number of pages defined is SNTSTRCT+SNTNDTCT 0040 64 Bitstring 1 SNTPRFLG PARMREGS flags 1... .... SNTPRDEF X'80' SNTPRDEF PARMREGS OPTION SPECIFIED ON DEFSYS .1.. .... SNTPRNO X'40' SNTPRNO PARMREGS=NONE SPECIFIED ON DEFSYS 1... .... SNTPRDEF X'80' SNTPRDEF PARMREGS OPTION SPECIFIED ON DEFSYS .1.. .... SNTPRNO X'40' SNTPRNO PARMREGS=NONE SPECIFIED ON DEFSYS 0041 65 Bitstring 1 * Reserved for IBM use 0042 66 Bitstring 2 SNTPREGS (0) PARMREGS registers 0042 66 Signed 1 SNTPRBEG PARMREGS beginning register 0043 67 Signed 1 SNTPREND PARMREGS ending register 0044 68 Address 4 SNTSHRPT Forward anchor for SHRBK chain. 0048 72 Address 4 SNTCPNTE CP Notification Address - this address will be called each time a virtual machine releases the system data file. The following definition of SNTMEMSR is for the 31-bit format 004C 76 Character 12 SNTMEMSR (0) 004C 76 Signed 2 SNTMEMCT Count of member saved segments within this segment space. This field is only valid if SNTLSS is on. This field indicates the number of member saved segment directory entries located in the directory area (SNTASM2 & SNTASM3). It may not be larger than SNTMAXCT. 004E 78 Signed 2 * Reserved for IBM use 0050 80 Signed 4 SNTSTPAG The lowest page defined for this segment. This page number has not been rounded down to the nearest megabyte boundary for segment spaces. 0054 84 Signed 4 SNTENPAG The highest page defined for this segment. This page number has not been rounded up to the nearest megabyte boundary for segment spaces. 0058 88 Signed 4 * Reserved for IBM use 005C 92 Address 4 SNTCPNTL CP Notification Address - this address will be called when the last virtual machine releases the system data file. 0060 96 Address 4 SNTNOTAM CP Notification Address - this address will be called when a saved segment is purged. 0064 100 Signed 4 * Reserved for IBM use. 0068 104 Bitstring 1 SNTMENVF Flag used to indicate the virtual machine environments in which the NSS can be IPLed. 0069 105 Bitstring 1 * (7) Reserved for IBM use. Redefinition of SNTMEMSR for 64-bit format SNTBK SNTMSRG is used to move the following fields in HCPNSBWD: SNTMEMCT, Reserved field, SNTSTPGG, SNTENPGG 004C 76 Character 20 SNTMSRG (0) 004C 76 Signed 2 * SNTMEMCT 004E 78 Signed 2 * Reserved for IBM use 0050 80 Dbl-Word 8 SNTSTPGG Lowest page for this segment 0058 88 Dbl-Word 8 SNTENPGG Highest page for this segment To update the SNTLODCG count for NSSs or saved segments the SNTBK-SHRBK Queue lock (SNTSHRLK) must be held exclusively. 0060 96 Signed 4 SNTLODCG The number of loads via this segment space. This is the number of SHRBKs that point to this segment space. This count is only valid if SNTLSS is on. 0064 100 Address 4 SNTCPNTG CP Notification Address - this address will be called when the last virtual machine releases the system data file 0068 104 Address 4 SNTNOTAG CP Notification Address - this address will be called when a saved segment is purged 006C 108 Bitstring 1 SNTMENVG Flag used to indicate the virtual machine environments in which the NSS can be IPLed 1... .... SNTMULT X'80' SNTMULT This NSS can be IPLed in more than one virtual machine mode. .... .1.. SNTXCMM X'04' SNTXCMM This bit indicates the ESA/XC virtual machine can IPL this NSS. .... ..1. SNTESAMM X'02' SNTESAMM This bit indicates the ESA-370 virtual machine can IPL this NSS. .... ...1 SNT370MM X'01' SNT370MM This bit indicates the System/370 virtual machine can IPL this NSS. 006D 109 Bitstring 1 * (3) Reserved for IBM use End of redefinitions for 64-bit format SNTBK SNTBK/SHRBK queue lock (SNTSHRLK) ******************************--- Lock type: This is a formal shared or exclusive lock Resource serialized: This lock manages the SHRBK queue chained from the SNTBK. The lock will be obtained shared when scanning the queue and exclusive when adding to, or deleting from, the queue. This lock is also used to serialize the following SNTBK 'use-counts': SNTUSRSH, SNTUSREX, SNTLODCG. The lock must be obtained exclusive when updating these counts. Notes : If the Saved Segment SNTBK queue or Named Saved System SNTBK queue lock is held exclusively then the SNTBK/SHRBK lock does not need to be obtained to add/ remove a SHRBK or increment/decrement the 'use-counts'. See the general comments in HCPNSUBK COPY file for detailed Saved Segment or NSS locking information. 0070 112 Dbl-Word 8 SNTSHRLK (3) SNTBK/SHRBK queue defer lock 0088 136 Dbl-Word 8 SNTPURID User id who issued PURGE command while SAVESEG/SAVESYS command is processing. 0090 144 Address 4 * Reserved for IBM use 0094 148 Address 4 SNTXBLBK Address of XBLBK for NSSs 0098 152 Address 4 SNTENVPG Address of environment page. This is a System Virtual address. 009C 156 Address 4 SNTASCBK Address of ASCBK for this space 00A0 160 Bitstring 4 SNTTODLD TOD(0-31) when image was loaded 00A4 164 Bitstring 4 * Reserved for IBM use 00A8 168 Character 8 SNTMARKR Eye-catcher C'>>SNT<<<' 004C 76 Signed 2 SNTLOGCT Count of segment spaces containing this member save segment. This field is only valid if SNTMSS is on. This field indicates the number of segment space directory entries located in the directory area (SNTASM3). It may not be larger than SNTMAXCT. End of SNTASM0 | | | SNTASM2 - Page Range Information | | OR | | Segment Space Member List | | | Redefinition of SNTRANGE for 31-bit Page Range The page range will be in the form SSSPP0FF where SSS = segment number PP = page number 0 = always 0 FF = flag byte 0800 2048 Dbl-Word 8 SNTRANGE A pair of start/end page ranges. 0800 2048 Signed 4 SNTRANS First page of range. This field for NSSs and DCSSs will contain a flag in the rightmost byte. 0804 2052 Signed 4 SNTRANE Last page of range. Redefinitions for 64-bit Page Range The page range will be in the form RRRRRRRRSSSPP0FF where RRRRRRRR = region number SSS = segment number 0 = always 0 FF = flag byte 0800 2048 Bitstring 16 SNTRANGG A pair of start/end page ranges. .1.. .... SNTPRMXG 64 SNTPRMXG The maximum number of page range entries plus one entry for the fence for NSSs and DCSSs. Images have only one page range. 0800 2048 Dbl-Word 8 SNTRANSG First page of range. This field for NSSs and DCSSs will contain a flag in the rightmost byte. 0808 2056 Dbl-Word 8 SNTRANEG Last page of range. 0800 2048 Bitstring 7 SNTRSNOG The start page range minus the flag byte. The page range will be in the form RRRRRRRRSSSPP0FF: where RRRRRRRR = region number SSS = segment number 0 = always 0 FF = flag byte 0807 2055 Bitstring 1 SNTRGFGG Page range storage type flag for NSSs and DCSSs. .... ...1 SNTEXCL X'01' SNTEXCL This bit indicates segments that may not be shared among several users. Each user gets a separate copy of this segment. .... ..1. SNTPROT X'02' SNTPROT This bit indicates page ranges that are page protected. Users may access these pages only in read-only mode. .... .1.. SNTNDAT X'04' SNTNDAT This bit indicates page ranges whose data is not saved into the SDF (no data). The following describes how page descriptor codes correspond to settings of SNTRGFGG. CODE SNTRGFGG SNTNDAT SNTPROT SNTEXCL ---- -------- ------- ------- ------- SW 000 0=data 0=unprotected (read/write) 0=shared EW 001 0=data 0=unprotected (read/write) 1=exclusive SR 010 0=data 1=protected (read-only) 0=shared ER 011 0=data 1=protected (read-only) 1=exclusive SN 100 1=nodata 0=unprotected (read/write) 0=shared EN 101 1=nodata 0=unprotected (read/write) 1=exclusive SC 110 1=nodata 1=protected (read-only) 0-shared 111 (reserved) 00000000 SNTRNGSW 0 Range flag value for 'SW' 00000001 SNTRNGEW SNTEXCL Range flag value for 'EW' 00000002 SNTRNGSR SNTPROT Range flag value for 'SR' 00000003 SNTRNGER SNTPROT+SNTEXCL Range flag value for 'ER' 00000004 SNTRNGSN SNTNDAT Range flag value for 'SN' 00000005 SNTRNGEN SNTNDAT+SNTEXCL Range flag value for 'EN' 00000006 SNTRNGSC SNTNDAT+SNTPROT Range flag value for 'SC' 00000007 SNTRNGR2 SNTNDAT+SNTPROT+SNTEXCL Reserved End of redefinitions for 64-bit Page Range | | | Segment Space Member List | | | Individual Member Entry Notes : This is a list of entries that can overlay both SNTASM2 and SNTASM3. 0800 2048 Character 32 SNTMEMBR Member entry Redefinition of Member Entry (SNTMEMBR) for 31-bit format 0800 2048 Character 16 SNTMEMDA (0) Used to move the next three fields 0800 2048 Character 8 SNTMSSNM Name of the member saved segment 0808 2056 Signed 4 SNTMEMST First page of range. This field will contain status information in the rightmost byte. The page number will be in form: SSSPP0FF, where SSS = segment number PP = page number 0 = always 0 FF = status byte 080C 2060 Signed 4 SNTMEMEN Last page of range 0810 2064 Address 4 SNTMSSA Address of the SNTBK defining the member saved segment. 0814 2068 Signed 4 * Reserved for IBM use 0818 2072 Dbl-Word 8 * Reserved for IBM use 00000020 SNTNTSZM *-SNTMSSNM Length of a member saved seg entry Redefinition of Member Entry (SNTMEMBR) for 64-bit format 0800 2048 Character 24 SNTMEMDG (0) Used to move the next 3 fields in HCPNSBWD 0800 2048 Character 8 SNTMSSNG Name of the member saved segment 0808 2056 Dbl-Word 8 SNTMEMSG First page of range. This field will contain status information in the rightmost byte. The page number will be in form: RRRRRRRRSSSPP0FF: where RRRRRRRR = region number SSS = segment number PP = page number 0 = always 0 FF = status byte 0810 2064 Dbl-Word 8 SNTMEMEG Last page of range 0818 2072 Address 4 SNTMSSAG Address of the SNTBK defining the member saved segment. 081C 2076 Signed 4 * Reserved for IBM use 0808 2056 Bitstring 7 SNTMSPG Starting page number for the member 080F 2063 Bitstring 1 SNTMSTAG Member saved segment status byte. .... .1.. SNTMQNTF X'04' SNTMQNTF Flag to indicate this entry not found during QUERY NAMES command processing .... ..1. SNTMSAVD X'02' SNTMSAVD This member saved segment has been saved .... ...1 SNTMPENP X'01' SNTMPENP This member saved segment is in pending End of SNTASM2 | | | SNTASM3 - Member's Segment Space List | | - Variable list of ASAs for Image Files | | | 0C00 3072 Character 16 SNTLGSEG Segment Space Entry Individual Segment Space Entry 0C00 3072 Character 8 SNTLSSNM Name of the segment space 0C08 3080 Address 4 SNTLSSA Address of the segment space's SNTBK. This field is zero if the segment space is not being used. WARNING - this field may be inaccurate under certain circumstances (like SNTBKs of members that were defined using the 'SAME' option). It is recommended that the segment space be located through SHRLSSA and compared be done on the SNTBK names, not with this address. 0C0C 3084 Bitstring 1 SNTLSTAT Segment space status byte .... .1.. SNTLQNTF X'04' SNTLQNTF Flag to indicate this entry not found during QUERY NAMES command processing. .... ..1. SNTLOPEN X'02' SNTLOPEN Segment space found open don't compress. .... ...1 SNTLPENP X'01' SNTLPENP This segment space is in pending purge status. 0C0D 3085 Bitstring 3 SNTLSSCT Number of segment space SNTBKs by this name pointing to this member SNTBK. Note 3 bytes are enough as each SNTBK occupies a full page and we can never have X'FFFFFF' SNTBKs. 00000010 SNTNTSZL *-SNTLSSNM The size of a segment space directory entry. End of Member's Segment Space List Variable list of ASAs for Image Files 0000000A SNTAPMAX 10 The maximum number of address entries in this ASA/virtual address table for an image or NLS file. 0C00 3072 Address 4 SNTASALT Address of the next page in the ASA/virtual address table. This field applies only to image and NLS files. 00000C04 SNTNASA * Next ASA in the table for image files. End of Variable List of ASAs for Image Files End of SNTASM3
SNTBK Storage Layout
*** SNTBK - System Name Table Block
*
* +-------------------------------------------------------+
* 0 | |
* = SNTASM0 =
* | |
* +-------------------------------------------------------+
* 400 | |
* = SNTASM1 =
* | |
* +-------------------------------------------------------+
* 800 | |
* = SNTASM2 =
* | |
* +-------------------------------------------------------+
* C00 | |
* = SNTASM3 =
* | |
* +-------------------------------------------------------+
*1000
*
*** SNTBK - System Name Table Block
*** Overlay for SNTASM0 in SNTBK
*
* +---------------------------+---------------------------+
* 0 | SNTFWDPT | SNTBCKPT |
* +---------------------------+---------------------------+
* 8 | SNTNAME |
* +------+------+------+------+-------------+-------------+
* 10 |:TYPFG|:STAFG|:ENVFG|:TYPF2| SNTUSRSH | SNTUSREX |
* +------+------+------+------+-------------+-------------+
* 18 | SNTSTLPT | SNTSDFBK |
* +---------------------------+---------------------------+
* 20 |///////////////////////////| SNTMINSZ |
* +---------------------------+---------------------------+
* 28 | SNTRNGCT | SNTDESCT |
* +---------------------------+---------------------------+
* 30 | SNTENVCT | SNTKEYCT |
* +---------------------------+---------------------------+
* 38 | SNTSTRCT | SNTNDTCT |
* +------+------+------+------+---------------------------+
* 40 |:PRFLG|//////|:PRBEG|:PREND| SNTSHRPT |
* +------+------+------+------+-------------+-------------+
* 48 | SNTCPNTE | SNTMEMCT |/////////////|
* +---------------------------+-------------+-------------+
* 50 | SNTSTPAG | SNTENPAG |
* +---------------------------+---------------------------+
* 58 |///////////////////////////| SNTCPNTL |
* +---------------------------+---------------------------+
* 60 | SNTNOTAM |///////////////////////////|
* +------+--------------------+---------------------------+
* 68 |:MENVF|////////////////////////////////////////////////|
* +------+------------------------------------------------+
* 70
*
*** Overlay for SNTASM0 in SNTBK
*** Overlay for SNTMEMSR in SNTBK
*
* +-------------+-------------+
* 48 ... 4C |/////////////|/////////////|
* +-------------+-------------+
* 50
*
*** Overlay for SNTMEMSR in SNTBK
*** Overlay for SNTSTPAG in SNTBK
*
* +-------------------------------------------------------+
* 50 | SNTSTPGG |
* +-------------------------------------------------------+
* 58 | SNTENPGG |
* +---------------------------+---------------------------+
* 60 | SNTLODCG | SNTCPNTG |
* +---------------------------+------+--------------------+
* 68 | SNTNOTAG |:MENVG|////////////////////|
* +---------------------------+------+--------------------+
* 70 | |
* = SNTSHRLK =
* | |
* +-------------------------------------------------------+
* 88 | SNTPURID |
* +---------------------------+---------------------------+
* 90 |///////////////////////////| SNTXBLBK |
* +---------------------------+---------------------------+
* 98 | SNTENVPG | SNTASCBK |
* +---------------------------+---------------------------+
* A0 | SNTTODLD |///////////////////////////|
* +---------------------------+---------------------------+
* A8 | SNTMARKR |
* +-------------------------------------------------------+
* B0
*
*** Overlay for SNTSTPAG in SNTBK
*** Overlay for SNTMEMCT in SNTBK
*
* +-------------+
* 48 ... 4C | SNTLOGCT | 4E
* +-------------+
*
*** Overlay for SNTMEMCT in SNTBK
*** Overlay for SNTASM2 in SNTBK
*
* +-------------------------------------------------------+
* 800 | SNTRANGE |
* +-------------------------------------------------------+
* 808
*
*** Overlay for SNTASM2 in SNTBK
*** Overlay for SNTRANGE in SNTBK
*
* +---------------------------+---------------------------+
* 800 | SNTRANS | SNTRANE |
* +---------------------------+---------------------------+
* 808
*
*** Overlay for SNTRANGE in SNTBK
*** Overlay for SNTASM2 in SNTBK
*
* +-------------------------------------------------------+
* 800 | SNTRANGG |
* | |
* +-------------------------------------------------------+
* 810
*
*** Overlay for SNTASM2 in SNTBK
*** Overlay for SNTRANGG in SNTBK
*
* +-------------------------------------------------------+
* 800 | SNTRANSG |
* +-------------------------------------------------------+
* 808 | SNTRANEG |
* +-------------------------------------------------------+
* 810
*
*** Overlay for SNTRANGG in SNTBK
*** Overlay for SNTRANSG in SNTBK
*
* +------------------------------------------------+------+
* 800 | SNTRSNOG |:RGFGG|
* +------------------------------------------------+------+
* 808
*
*** Overlay for SNTRANSG in SNTBK
*** Overlay for SNTASM2 in SNTBK
*
* +-------------------------------------------------------+
* 800 | |
* = SNTMEMBR =
* | |
* +-------------------------------------------------------+
* 820
*
*** Overlay for SNTASM2 in SNTBK
*** Overlay for SNTMEMBR in SNTBK
*
* +-------------------------------------------------------+
* 800 | SNTMSSNM |
* +---------------------------+---------------------------+
* 808 | SNTMEMST | SNTMEMEN |
* +---------------------------+---------------------------+
* 810 | SNTMSSA |///////////////////////////|
* +---------------------------+---------------------------+
* 818 |///////////////////////////////////////////////////////|
* +-------------------------------------------------------+
* 820
*
*** Overlay for SNTMEMBR in SNTBK
*** Overlay for SNTMEMBR in SNTBK
*
* +-------------------------------------------------------+
* 800 | SNTMSSNG |
* +-------------------------------------------------------+
* 808 | SNTMEMSG |
* +-------------------------------------------------------+
* 810 | SNTMEMEG |
* +---------------------------+---------------------------+
* 818 | SNTMSSAG |///////////////////////////|
* +---------------------------+---------------------------+
* 820
*
*** Overlay for SNTMEMBR in SNTBK
*** Overlay for SNTMEMSG in SNTBK
*
* +------------------------------------------------+------+
* 808 | SNTMSPG |:MSTAG|
* +------------------------------------------------+------+
* 810
*
*** Overlay for SNTMEMSG in SNTBK
*** Overlay for SNTASM3 in SNTBK
*
* +-------------------------------------------------------+
* C00 | SNTLGSEG |
* | |
* +-------------------------------------------------------+
* C10
*
*** Overlay for SNTASM3 in SNTBK
*** Overlay for SNTLGSEG in SNTBK
*
* +-------------------------------------------------------+
* C00 | SNTLSSNM |
* +---------------------------+------+--------------------+
* C08 | SNTLSSA |:LSTAT| SNTLSSCT |
* +---------------------------+------+--------------------+
* C10
*
*** Overlay for SNTLGSEG in SNTBK
*** Overlay for SNTASM3 in SNTBK
*
* +---------------------------+
* C00 | SNTASALT | C04
* +---------------------------+
*
*** Overlay for SNTASM3 in SNTBK
SNTBK Cross Reference
Symbol Dspl Value -------------- ---- ----- SNTABEND 0011 04 SNTAPMAX 0C0D 0000000A SNTASALT 0C00 SNTASCBK 009C SNTASM0 0000 SNTASM1 0400 SNTASM2 0800 SNTASM3 0C00 SNTBCKPT 0004 SNTCOUNT 0024 SNTCPNTE 0048 SNTCPNTG 0064 SNTCPNTL 005C SNTCPUSE 0010 40 SNTCPUSE 0010 40 SNTDESCT 002C SNTENPAG 0054 SNTENPGG 0058 SNTENVCT 0030 SNTENVFG 0012 SNTENVPG 0098 SNTESAMD 0012 00000002 SNTESAMM 006C 02 SNTEXCL 0807 01 SNTFLAGS 0010 SNTFWDPT 0000 SNTIMG 0010 04 SNTIMG 0010 04 SNTKEYCT 0034 SNTLGSEG 0C00 SNTLNSHR 0013 20 SNTLODCG 0060 SNTLOGCT 004C SNTLOPEN 0C0C 02 SNTLPENP 0C0C 01 SNTLQNTF 0C0C 04 SNTLSS 0010 20 SNTLSS 0010 20 SNTLSSA 0C08 SNTLSSCT 0C0D SNTLSSNM 0C00 SNTLSTAT 0C0C SNTMARKR 00A8 SNTMEMBR 0800 SNTMEMCT 004C SNTMEMDA 0800 SNTMEMDG 0800 SNTMEMEG 0810 SNTMEMEN 080C SNTMEMSG 0808 SNTMEMSR 004C SNTMEMST 0808 SNTMENVF 0068 SNTMENVG 006C SNTMINSZ 0024 SNTMPENP 080F 01 SNTMQNTF 080F 04 SNTMSAVD 080F 02 SNTMSPG 0808 SNTMSRG 004C SNTMSS 0010 10 SNTMSS 0010 10 SNTMSSA 0810 SNTMSSAG 0818 SNTMSSNG 0800 SNTMSSNM 0800 SNTMSTAG 080F SNTMULT 006C 80 SNTNAME 0008 SNTNAMFL 0008 SNTNASA 0C00 00000C04 SNTNDAT 0807 04 SNTNDTCT 003C SNTNLS 0010 08 SNTNLS 0010 08 SNTNOTAG 0068 SNTNOTAM 0060 SNTNTSZL 0C0D 00000010 SNTNTSZM 0818 00000020 SNTPENDP 0011 01 SNTPRBEG 0042 SNTPRDEF 0040 80 SNTPRDEF 0040 80 SNTPREGS 0042 SNTPREND 0043 SNTPRFLG 0040 SNTPRMXG 0800 40 SNTPRNO 0040 40 SNTPRNO 0040 40 SNTPROT 0807 02 SNTPURID 0088 SNTRANE 0804 SNTRANEG 0808 SNTRANGE 0800 SNTRANGG 0800 SNTRANS 0800 SNTRANSG 0800 SNTRGFGG 0807 SNTRNGCT 0028 SNTRNGEN 0807 00000005 SNTRNGER 0807 00000003 SNTRNGEW 0807 00000001 SNTRNGR2 0807 00000007 SNTRNGSC 0807 00000006 SNTRNGSN 0807 00000004 SNTRNGSR 0807 00000002 SNTRNGSW 0807 00000000 SNTRSNOG 0800 SNTRSTD 0010 80 SNTRSTD 0010 80 SNTSDFBK 001C SNTSEG 0010 01 SNTSEG 0010 01 SNTSHRLK 0070 SNTSHRPT 0044 SNTSHWRT 0013 80 SNTSTAFG 0011 SNTSTLPT 0018 SNTSTPAG 0050 SNTSTPGG 0050 SNTSTRCT 0038 SNTSYS 0010 02 SNTSYS 0010 02 SNTTODLD 00A0 SNTTYPFG 0010 SNTTYPF2 0013 SNTUSREX 0016 SNTUSRSH 0014 SNTVMGRP 0013 40 SNTXBLBK 0094 SNTXCMD 0012 00000004 SNTXCMM 006C 04 SNT370MD 0012 00000001 SNT370MM 006C 01
Copyright IBM Corporation, 1990, 2011