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Programming Interface Information:
This page documents intended Programming
Interfaces that allow the customer to write programs to obtain the services of VM/ESA. |
LWRD
Cross Reference (Contains links to field and bit definitions)
LWRD Prolog
Name : LWRD Description: LINEWRT Data Descriptor DSECT : LWRD Function : LWRD is used to map an area of storage that contains information on data output that is used by the LINEWRT Macro with FORM=MULTIPLE. This descriptor DSECT has two formats. It describes either the positioning of the cursor within a VSCREEN or the output that is to be written to a VSCREEN.
LWRD Control Block Content
LWRD DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure LWRD LINEWRT Data Descriptor 0000 0 Address 4 LWRDNEXT Pointer to next LINEWRT descriptor (LWRD) 0004 4 Character 8 * Reserved 000C 12 Signed 4 LWRDLINE Line number 0010 16 Signed 4 LWRDCOL Column number 0014 20 Address 4 LWRDTXTA Text address - for output LWRD 0018 24 Signed 4 LWRDTXTL Length of text for output LWRD 001C 28 Signed 4 LWRDFLDL Output length in vscreen - for output LWRD 0020 32 Bitstring 1 LWRDFLG1 Flag byte #1 - for output LWRD 1... .... LWRDNTRF X'80' X... .... No nulls translation .1.. .... LWRDNOTR X'40' .X.. .... No user translation EQU X'20' X. .. reserved EQU X'10' .X .. reserved .... 1... LWRDCSEF X'08' .... X... Mixed or sbcs specified .... .1.. LWRDOUTF X'04' .... .X.. Field outlining spec'd .... ..1. LWRDPRTY X'02' .... ..X. Priority write .... ...1 LWRDRESO X'01' .... ...X Reserved area of vscreen 0021 33 Bitstring 1 LWRDOUTL Field outlining value 0022 34 Bitstring 1 LWRDCSET Mixed or sbcs field attribute 0023 35 Character 6 * Reserved 0029 41 Bitstring 1 LWRDATTR Attribute byte - for output LWRD 002A 42 Bitstring 1 LWRDCOLR Color byte - for output LWRD 002B 43 Bitstring 1 LWRDEXHI Extended highlighting byte-for output LWRD 002C 44 Bitstring 1 LWRDPSS PSS byte - for output LWRD 002D 45 Bitstring 1 LWRDFLG2 Flag byte #2 - for output LWRD 1... .... LWRDPSSF X'80' X... .... PSS is specified .1.. .... LWRDEXHF X'40' .X.. .... Extended highlght is specified ..1. .... LWRDCLRF X'20' ..X. .... Color is specified ...1 .... LWRDDATF X'10' ...X .... Update data buffer EQU X'08' .. X... Reserved .... .1.. LWRDCRSF X'04' .... .X.. Position cursor within field EQU X'02' .. X. Reserved .... ...1 LWRDPADF X'01' .... ...X Padding with blanks 002D 45 Bitstring 1 LWRDLCUR .... ..1. LWRDSETC X'02' .... ..X. Position cursor using curs LWRD .... ...1 LWRDRESC X'01' .... ...X Reserved area of vscreen 002E 46 Bitstring 1 LWRDTXT Text writes a field,data,color,exthi,pss Valid text codes */ .... .... LWRDFLDV X'00' Define a field with default vscreen attr. .... ...1 LWRDFLDD X'01' Define a field and use descriptor attr. .... ..1. LWRDDATT X'02' Text is data to write in pre-defined field .... ..11 LWRDCLRT X'03' Text is color codes .... .1.. LWRDEXHT X'04' Text is extended highlighting codes .... .1.1 LWRDPSST X'05' Text is PSS codes 002F 47 Bitstring 1 LWRDRC Individual return code Valid return codes */ 00000000 LWRDOK 0 Function executed successfully 00000018 LWRDINVP 24 User did not specify descriptor correctly 00000020 LWRDINVL 32 Specified line/column is outside vscreen 00000068 LWRDNOST 104 Insufficient storage was available 00000030 LWRDLEN *-LWRD Length of LWRD 00000006 LWRDDBSZ (LWRDLEN+7)/8 Length in doublewords
LWRD Storage Layout
*** LWRD - LINEWRT Data Descriptor * * +---------------------------+---------------------------+ * 0 | LWRDNEXT |///////////////////////////| * +---------------------------+---------------------------+ * 8 |///////////////////////////| LWRDLINE | * +---------------------------+---------------------------+ * 10 | LWRDCOL | LWRDTXTA | * +---------------------------+---------------------------+ * 18 | LWRDTXTL | LWRDFLDL | * +------+------+------+------+---------------------------+ * 20 |:DFLG1|:DOUTL|:DCSET|//////////////////////////////////| * +------+------+------+------+------+------+-------------+ * 28 |//////|:DATTR|:DCOLR|:DEXHI|:DPSS |:DFLG2| 2E * +------+------+------+------+------+------+ * *** LWRD - LINEWRT Data Descriptor *** Overlay for LWRDFLG2 in LWRD * * +------+------+------+ * 28 ... 2D |:DLCUR|:DTXT |LWRDRC| * +------+------+------+ * 30 * *** Overlay for LWRDFLG2 in LWRD
LWRD Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----LWRDATTR 0029
LWRDCLRF 002D 20
LWRDCLRT 002E 03
LWRDCOL 0010
LWRDCOLR 002A
LWRDCRSF 002D 04
LWRDCSEF 0020 08
LWRDCSET 0022
LWRDDATF 002D 10
LWRDDATT 002E 02
LWRDDBSZ 002F 00000006
LWRDEXHF 002D 40
LWRDEXHI 002B
LWRDEXHT 002E 04
LWRDFLDD 002E 01
LWRDFLDL 001C
LWRDFLDV 002E 00
LWRDFLG1 0020
LWRDFLG2 002D
LWRDINVL 002F 00000020
LWRDINVP 002F 00000018
LWRDLCUR 002D
LWRDLEN 002F 00000030
LWRDLINE 000C
LWRDNEXT 0000
LWRDNOST 002F 00000068
LWRDNOTR 0020 40
LWRDNTRF 0020 80
LWRDOK 002F 00000000
LWRDOUTF 0020 04
LWRDOUTL 0021
LWRDPADF 002D 01
LWRDPRTY 0020 02
LWRDPSS 002C
LWRDPSSF 002D 80
LWRDPSST 002E 05
LWRDRC 002F
LWRDRESC 002D 01
LWRDRESO 0020 01
LWRDSETC 002D 02
LWRDTXT 002E
LWRDTXTA 0014
LWRDTXTL 0018
Last updated on 30 Aug 1999 at 14:48:20 EDT.
Copyright IBM Corporation, 1990, 1999