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Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
COMBK
Cross Reference (Contains links to field and bit definitions)
COMBK Prolog
NAME : HCPCOMBK
DESCRIPTION: Console Communications Control Block
STATUS : VM/ESA Version 2, Release 3.0
DSECT : COMBK
FUNCTION : Contains data and control information pertinent to the
control and communication between virtual and real
terminal console tasks and command streams.
LOCATED BY : COMPNT - chained
RDEVCON - field in HCPRDEV
CREATED BY : HCPQCN - whenever a read or write is to be done.
HCPGFS - to clear the screen when switching from
full-screen mode to CP mode.
HCPGRF - for APL/TEXT translations, and
to clear the screen when switching from
full-screen mode to CP mode.
HCPGIN - for uppercase translation.
HCPTTY - to update the status area to indicate
***MORE***.
HCPVCYSM - for VM/VTAM terminal processing.
DELETED BY : HCPQCOET - general system routine to return COMBKs
to free storage.
HCPQCN - when a message won't be displayed on the
terminal screen or when a COMBK is split
into two or more COMBKS.
HCPGIN - when uppercase translation is completed.
HCPGRF - when APL/TEXT translation is completed.
REFERENCES : HCPEQUAT - equate symbols
HCPHCCW - host channel control word
COMBK Control Block Content
COMBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure COMBK Console Communications Control Block 0000 0 Signed 4 COMPNT POINTER TO NEXT COMBK 0004 4 Signed 2 COMHPARM (0) CALLING PARMS (SEE EQUATES COPY) 0004 4 Bitstring 1 COMBPARM BYTE 1 OF CALLING PARMS ..1. .... COMALTVM X'20' data to be sent to an alternate user ...1 .... COMREDSP X'10' this is input redisplay data .... 1... COMIOCOM X'08' return when I/O is completed .... .1.. COMSCRFL X'04' return if data can fit on current scrn .... ..1. COMDIAG X'02' this is a diagnose request 0005 5 Bitstring 1 COMPARM CALLING PARMS (SEE EQUATES COPY) 1... .... COMDROP X'80' LOGOFF & DROP line after message ..1. .... COMHIPRI X'20' hipriority message ...1 .... COMVMIO X'10' virtual machine I/O .... 1... COMHIDE X'08' do not display the data .... .1.. COMNOCR X'04' suppress automatic carriage return .... ..1. COMALRM X'02' sound the audible alarm .... ...1 COMCRDR X'01' data is expected from a cardreader .... .1.. COMEDIT X'04' the input line will be edited for logical line end, line delete, charactr delete, and escape characters according to the user's logical line editing character setting. .... ..1. COMUPPR X'02' translate all characters on the input line to upper case 0006 6 Signed 2 COMTSKSZ COMBK SIZE IN DOUBLE WORDS 0008 8 Signed 4 COMRETN POINTER TO SAVEAREA FOR RETURN 000C 12 Signed 4 COMUSER ADDRESS OF VMDBK FOR DESTINATION USER 0010 16 Bitstring 1 COMSTAT COMBK STATUS CONTROL FLAGS 1... .... COMOUTPT X'80' OUTPUT COMBK .1.. .... COMRESP X'40' RESPONSE EXPECTED FROM THIS COMBK ..1. .... COMACTV X'20' COMBK IS ACTIVE ON REAL DEVICE ...1 .... COMCNTL X'10' THIS IS A CONTROL COMBK ONLY .... 1... COMESCP X'08' COMBK CONTAINS DEVICE DEPENDENT DATA .... .1.. COMLOALM X'04' THIS COMBK HAS BEEN INHIBITED FROM BREAKING INTO FULL SCREEN MODE AND THE ALARM HAS ALREADY BEEN RUNG TO NOTIFY THE USER .... ..1. COMSPLT X'02' OUTPUT DATA BEING SPLIT .... ...1 COMSYNC X'01' COMBK FOR SYNCHRONIZATION ONLY 0011 17 Bitstring 1 COMDFLAG DIAGNOSE DISPLAY FLAG 000000FF COMCNCL 255 DISPLAY - CANCEL FUNCTION REQUESTED 000000FE COMCLEAR 254 DISPLAY - CLEAR FUNCTION REQUESTED ERASE THE ENTIRE SCREEN, REWRITE THE ATTRIBUTE BYTES FOR CP SCREEN FORMAT, AND RESET THE CURSOR TO THE BEGINNING OF THE INPUT AREA 0012 18 Bitstring 1 COMCNTRL CONTROL FLOW FLAGS 1... .... COMHOLD X'80' DISPLAY - SCREEN STATUS HOLDING .1.. .... COMWRTRD X'40' TERM - COMBK CONTAINS WRITE/READ ..1. .... COMMORE X'20' TERM - 'MORE' COMBK ...1 .... COMPFWRT X'10' TERM - ECHO WRITE COMBK .... 1... COMPFDEL X'08' TERM - PF DELAY WRITE COMBK .... .1.. COMEXTHC X'04' EXTENDED COLOR AND EXTENDED HIGHLIGHTING ATTRIBUTES ARE TO BE ADDED INTO THIS COMBK .... ..1. COMHIGH X'02' HILIGHTING ATTRIBUTES ARE TO BE ADDED INTO THIS COMBK .... ...1 COMIMMED X'01' IF THE USER IS IN FULL SCREEN MODE, THIS COMBK WILL BREAK IN IMMEDIATELY 0013 19 Bitstring 1 COMLINO DIAGNOSE DISPLAY LINE NO 0014 20 Bitstring 1 COMWORK TEMPORARY WORK FIELD 0015 21 Bitstring 1 COMFLG2 MISC. FLAGS .... ...1 COMDBCS X'01' DBCS output requested .... ..1. COMCMND X'02' COMMAND OUTPUT FLAG .... .1.. COMINITP X'04' SEND OF INITIAL LOGON PROMPTS .... 1... COMPRND X'08' PROMPT FOLLOWED BY A READ NODISPLAY ...1 .... COMLED X'10' Limited Edit Write Requested ..1. .... COMFIRST X'20' First COMBK on RDEVCON queue .1.. .... COMDOCR X'40' Do carriage return 1... .... COMRPRMT X'80' This COMBK is a read prompt for the integrated console 0016 22 Bitstring 1 * (2) RESERVED FOR FUTURE IBM USE 0018 24 Signed 4 COMFSCBK Address of FSCBK 001C 28 Signed 4 * Reserved for IBM use 0020 32 Dbl-Word 8 COMCCW1 FIRST CONSOLE I/O CCW 0028 40 Dbl-Word 8 COMCCW2 SECOND CONSOLE I/O CCW 0030 48 Dbl-Word 8 COMCCW3 THIRD CONSOLE I/O CCW 0038 56 Dbl-Word 8 COMCCW4 FOURTH CONSOLE I/O CCW 0040 64 Dbl-Word 8 COMDEVA Device dependent area 0048 72 Dbl-Word 8 * (0) ALIGNMENT 00000009 COMSIZE (*-COMBK)/8 COMBK HEADER SIZE IN DOUBLE WORDS 0048 72 Character 1 COMDATA (0) START OF VARIABLE LENGTH DATA COMCCW1 REDEFINITION 0020 32 Bitstring 1 COM1CMND CCW COMMAND CODE *** (AT HEX DISPLACEMENT: 1) 0021 33 Bitstring 1 COM1FLAG CCW FLAG BITS 1... .... CCWDC X'80' CHAIN DATA ADDRESS AND COUNT .1.. .... CCWCC X'40' COMMAND CHAIN ..1. .... CCWSILI X'20' SUPPRESS INCORRECT LENGTH ...1 .... CCWSKIP X'10' SUPPRESS INBOUND DATA TRANSFER .... 1... CCWPCIR X'08' REQUEST PC INTERRUPTION .... .1.. CCWIDA X'04' INDIRECT DATA ADDRESSING .... ..11 CCWINVAL X'03' I/O UNDEFINED PAIR OF BITS .... ..1. CCWSUSPN X'02' I/O SUSPENSION/RESUMPTION .... ...1 CCWUNDEF X'01' I/O UNDEFINED BIT 0022 34 Signed 2 COM1CNT CCW DATA COUNT 0024 36 Address 4 COM1ADDR CCW DATA ADDRESS 00000027 COM1ADRX *-1 CCW FINAL BYTE OF ADDRESS 0028 40 Dbl-Word 8 COM1NEXT (0) CCW FOLLOWING CURRENT CCW 0000000F COMWIS B'1111' ICM/STCM MASK FOR 31 BIT ADDRESS 00000004 COMWMC 04 MVC/CLC LENGTH FOR 31 BIT ADDRESS 00000080 COMWIDAL B'10000000' IDAL INVALID BIT MASK 00000008 COMWLEN 8 LENGTH OF A SINGLE CCW (8 BYTES) REDEFINITION - CLASTERM DEVICES 0040 64 Dbl-Word 8 COMCCW5 Additional CCW for start/stop devices REDEFINITION - CLASGRAF DEVICES 0040 64 Bitstring 1 * (3) RESERVED FOR FUTURE IBM USE 0043 67 Bitstring 1 COMRCMD 3270 COMMAND CHARACTER 0044 68 Bitstring 1 COMRWCC 3270 WRITE CONTROL CHARACTER 0045 69 Bitstring 1 COMRSBA 3270 'SBA' ORDER CHARACTER 0046 70 Signed 2 COMBUFA 3270 BUFFER ADDRESS CHARACTERS REDEFINITION OF COMBUFA 0046 70 Bitstring 1 COMBUFAD BUFFER ADDRESS 0047 71 Bitstring 1 COMBUFLC LOCATION ON THE HEADER
COMBK Storage Layout
*** COMBK - Console Communications Control Block * * +---------------------------+------+------+-------------+ * 0 | COMPNT |:BPARM|:PARM | COMTSKSZ | * +---------------------------+------+------+-------------+ * 8 | COMRETN | COMUSER | * +------+------+------+------+------+------+-------------+ * 10 |:STAT |:DFLAG|:CNTRL|:LINO |:WORK |:FLG2 |/////////////| * +------+------+------+------+------+------+-------------+ * 18 | COMFSCBK |///////////////////////////| * +---------------------------+---------------------------+ * 20 | COMCCW1 | * +-------------------------------------------------------+ * 28 | COMCCW2 | * +-------------------------------------------------------+ * 30 | COMCCW3 | * +-------------------------------------------------------+ * 38 | COMCCW4 | * +-------------------------------------------------------+ * 40 | COMDEVA | * +-------------------------------------------------------+ * 48 | | * = COMDATA = * | | * +-------------------------------------------------------+ * *** COMBK - Console Communications Control Block *** Overlay for COMCCW1 in COMBK * * +------+------+-------------+---------------------------+ * 20 |:1CMND|:1FLAG| COM1CNT | COM1ADDR | * +------+------+-------------+---------------------------+ * 28 | | * = COM1NEXT = * | | * +-------------------------------------------------------+ * *** Overlay for COMCCW1 in COMBK *** Overlay for COMDEVA in COMBK * * +-------------------------------------------------------+ * 40 | COMCCW5 | * +-------------------------------------------------------+ * 48 * *** Overlay for COMDEVA in COMBK *** Overlay for COMDEVA in COMBK * * +--------------------+------+------+------+-------------+ * 40 |////////////////////|:RCMD |:RWCC |:RSBA | COMBUFA | * +--------------------+------+------+------+-------------+ * 48 * *** Overlay for COMDEVA in COMBK *** Overlay for COMBUFA in COMBK * * +------+------+ * 40 ... 46 |:BUFAD|:BUFLC| * +------+------+ * 48 * *** Overlay for COMBUFA in COMBK
COMBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----CCWCC 0021 40
CCWDC 0021 80
CCWIDA 0021 04
CCWINVAL 0021 03
CCWPCIR 0021 08
CCWSILI 0021 20
CCWSKIP 0021 10
CCWSUSPN 0021 02
CCWUNDEF 0021 01
COMACTV 0010 20
COMALRM 0005 02
COMALTVM 0004 20
COMBPARM 0004
COMBUFA 0046
COMBUFAD 0046
COMBUFLC 0047
COMCCW1 0020
COMCCW2 0028
COMCCW3 0030
COMCCW4 0038
COMCCW5 0040
COMCLEAR 0011 000000FE
COMCMND 0015 02
COMCNCL 0011 000000FF
COMCNTL 0010 10
COMCNTRL 0012
COMCRDR 0005 01
COMDATA 0048
COMDBCS 0015 01
COMDEVA 0040
COMDFLAG 0011
COMDIAG 0004 02
COMDOCR 0015 40
COMDROP 0005 80
COMEDIT 0005 04
COMESCP 0010 08
COMEXTHC 0012 04
COMFIRST 0015 20
COMFLG2 0015
COMFSCBK 0018
COMHIDE 0005 08
COMHIGH 0012 02
COMHIPRI 0005 20
COMHOLD 0012 80
COMHPARM 0004
COMIMMED 0012 01
COMINITP 0015 04
COMIOCOM 0004 08
COMLED 0015 10
COMLINO 0013
COMLOALM 0010 04
COMMORE 0012 20
COMNOCR 0005 04
COMOUTPT 0010 80
COMPARM 0005
COMPFDEL 0012 08
COMPFWRT 0012 10
COMPNT 0000
COMPRND 0015 08
COMRCMD 0043
COMREDSP 0004 10
COMRESP 0010 40
COMRETN 0008
COMRPRMT 0015 80
COMRSBA 0045
COMRWCC 0044
COMSCRFL 0004 04
COMSIZE 0048 00000009
COMSPLT 0010 02
COMSTAT 0010
COMSYNC 0010 01
COMTSKSZ 0006
COMUPPR 0005 02
COMUSER 000C
COMVMIO 0005 10
COMWIDAL 0028 00000080
COMWIS 0028 0000000F
COMWLEN 0028 00000008
COMWMC 0028 00000004
COMWORK 0014
COMWRTRD 0012 40
COM1ADDR 0024
COM1ADRX 0024 00000027
COM1CMND 0020
COM1CNT 0022
COM1FLAG 0021
COM1NEXT 0028
Last updated on 3 Aug 1999 at 11:46:45 EDT.
Copyright IBM Corporation, 1990, 1999