THE SAVENCP COftftlND PROCESSOR (DMSNCP) Latel CESDCHVT CESDENT CBEKVKV CLOSE CONTROL ENDPARftS ERR21
ERR66 EXIT SAVECCP SAiENCP SCANCEP SCANDEV SCANLINE SCANNCP Diagram
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Description
Finds the channel vector table. Saves the entry point.
Checks that the specified options are compatible. Closes the input file. ftoves the text records fro. the input buffer to the core i.age ........ &.#! ........... .lJU.L.L'IIII;'&'. Opens the input file and searches for the member.
Checks for the entry point record.
Checks for pre.ature end of file or invalid centrol records.
Returns control to CftS. Issues the Diagnose X'SC' instruction to have DMKSNC do the
actual saving.
Entry point for the SIVENCP command processor. Updates the CCPARft parameter list for EP and PEP control
progra.s. Scans for devices. Scans for teleprocessing lines. Updates the CCPARft parameter list for RCP and PEP control
progra.s. Figure The SAVENCP Command Processor (DftSNCP) Latel Directory
Chapter 9. The 3704/3705 SErvice Pro;ra:s 189 ,

Data Areas
The following data areas are used by the 3704/3705 com.ana processor modules: • Active Disk Table (ADT) • Communications List (CCPAB!!) Controllers Parameter • File System Control Block (FSCB) • Network Interface Control Elock (NICELOK) • Beal Device Block (BDEVELCK) • Spool File Block (SFBLCK) • Virtual !!achine Block (V!BLCK) • Input/Output Block CIOBLOK) All the above data areas except the FseE
are described in the Vt!L37.Q ]!ta J!!!§ !!!g Block§ Logic. The FSCE is
described in Figure 9-8.
FILE SYSTE!! CONTBOL BLOCK Or-----------------------------------------------, FSCBFNCT 8 FSCBID I 18 11A FSeEBICN 1C FSCBBUFA 20 FSCBSIZE 24 FSCBFBMT I FSCEBOR 1------------------------------------------------ 281 FSCBLIOB Hex Dec --0 --0 FSCBFNCT DS CL8 Control field for 1/0 function
8 8 FSCBID DS OCL18 File Ident ifier
8 8 FSCBFN DS CL8 Filenalle 10 16 FSCBFT DS CL8 Filetype
18 24 FSCBFM DS CL2 Filellode
1A 26 FSCBBECN DS H
Belative record number 1C 28 FSCBBUPA DS A Euffer address 20 32 PSCBSIZ! DS P Euffer size
24 36 PSCBPB!!T DS CL2 File format
26 38 FSCBNOB DS OH Number of records to l:e read
28 40 FSCBLIOB DS A Figure 9-9. Pile Systea Control Block (PSCB) 190 IBM V!!/370 Service Boutines Program Logic