SHRTAfLE SBRTABLE contains pointers to the segment locations of named systems for beth the shared
and nonshared user. This block is used in paging. IPt. and virtual machine assist PAGTABLE-8 points to SHRTAELE. Hexadecillal o
8 10 18
Displacement
------------ 0 0 1
4
8 10 ;2 14
18
1C S*l SHRFFNT SBRFPNT SHRNA!E SHRTSIZE I SHROSECT SHRSEGN! Field
Name SHRFPNT DS 1F ORG SHRFPNT SHRFLAG DS 1X SHRFPNT DS 3X !!i!§ in SHRFLAG SHRNOPRT EQO -x''4'O,-- SHRBPNT DS 1F SHRNA!E DS CL8 SHRTSIZE DS 1H SHRUSECT DS 1H SHRSEGCT DS 1F SHRSEGN! DS 1F SHRPAGE DS 1F SBRSEGCT SBRFAGE Field Description, Contents, fteaning Pointer to next SHRTABLE S*l Shared segment flag kyte Pointer to next SHRTABLE Nonprotected shared segments Pointer to previous SHRTABLE Name of saved system Size of SBRTABtE in doublewords Number of users using this segment name Number of shared segments
Contains shared segment nuabers; up to four
segment numbers per word Pointers to each of the shared {age tables.
There is ene word for each shared segment. The entry is the same as S*1 SEGPAGE in "5!GTAftE: Segment Table." In attached processor (AP) mode, there will be two sets of page tables (FAGTAEt!) for each shared segllent; one for the main processor, one for the attached processor. SBRPAGE will point to the page tables for the lIain processor. The page tables fer the
attached processor will be at a fixed displacement (P1GE!P) froll those of the main processor. Section 1. CP Data Areas and Ccntrol flocks 99

SPLIIK SPLIIK resides in auxiliary storage and contains one Fage (4096 bytes) of unit record
sFeol inforaation consisting of data and all required eCis. The RSPVPAGE field and the RSPRPAGE field in RSPLCTL point to SPLIIK. o
8 10 FDO FD8 FEO FF8
Bexadeci.al tisplacellent ------------ 0 4
8 C FDO FD4 FEO FE4 FE8 FF4 FF5 FF6 FF8
FFA
Field Name SPNXTPAG SPPREPAG SPRftISC SPRECIUM SPSIZE SPCHAR SPRSVDl SPFCB SPCMOD SPRSVD2 SPFLSHC SPFLAGl SPNXTPAG SPPRIPAG SPR!HSC SPRECIU!! Spool Buffer Data Area (4032 bytes) 1 SPCHAR SPRSVD1 SPFCBS SPC!OD SPRSVD2 I S*1 I I SPRSVD3 Field Description, Contents, Beaning -------------------------------------- DS IF tASt location (DCHR) of next Fage buffer DS IF DASt location (DCHR) of previcus page buffer DS IF Use varies according to caller DS IF lu.her of data records in buffer EQU (*-SPLINK) Size in bytes (Xll01) ORG SPLIRK+4096-48 End of first DASD tuffer DS CL4 3800 character arrangement table for file DS CL12 Reserved for IBM use DS CL4 3800 function centrol tleck fer file DS CL4 380e copy module for file DS CL12 Reserved for IBM use DS lX S*l 3800 flash count DS lX S*2 3800 flag byte l!it§ in SPFLAGl --X'80'- SPCOPYFG EQU SPRSVD3 DS SPFILID DS SPTI!!E DS SPERDSIZ EQU 2X 1H CL6 *-SPCHAR If flag is set, aultiple cCFies can be done
in one transmission Reserved for IBft use
File identifier used for vErificatien SFETI!!E -- used for verification
End-ef-buffer size in tytes IFirst DASD buffer only. All others comprise 40ee bytes. 100 IB!! V!!/370 Data Areas and Control Block Logic