Program Logic Manual - All about the IBM 1130 Computing System

to be fetched as a result.Phase 2 of the Core Image Loader is the programthat fetches into core storage and, if indicated,transfers control to the program(s) indicated byphase 1.Core Load BuilderThis component is the program that converts a mainlineprogram from disk system format (DSF) to a coreload, a program in disk core image format (DCI);that is, the Core Load Builder relocates the mainlineprogram and all the subroutines required and constructsthe other necessary parts of the core load,e. g. , the transfer vector, LOCALs, and SOCALs.Disk Utility Program (DUP.)This component provides the means for performingthe following functions, largely through the use ofcontrol records only:• Make available the contents of disk storage inpunched or printed format -- DUMP,DUMPDATA.• Print a map of the contents of the variable portionsof disk storage -- DUMPLET,DUMPFLET.• Store information on the disk in disk systemformat (DSF), disk data format (DDF), or diskcore image format (DCI) -- STORE,STOREDATA, STOREDATACI, STORECI,STOREMOD.• Remove information from the User/Fixed Area ---DELETE.• Alter the allocation of the Fixed Area on the diskor delete the Assembler Program and/or theFORTRAN Compiler from the monitor system --DEFINE.• Initialize the Working Storage area on disk --DWADR.• Provide file protection for the contents of diskstorage.Assembler ProgramThis component is the program that translates thestatements of a source program written in the IBM1130 Assembler Language into a program in disksystem format (DSF).FORTRAN CompilerThis component is the program that translates thestatements of a source program written in the IBM1130 Basic FORTRAN IV Language into a program indisk system format (DSF).RPG CompilerThis component is the program that translatesspecifications written in RPG language into a programin disk system format (DSF). 1130 RPGlogic is described in the publication, IBM 1130 RPGProgram Logic Manual, Form Y21-0010.System LibraryThis component consists of (1) a complete libraryof input/output (except disk I/O), data conversion,arithmetic, and function subroutines, (2) selectivedump subroutines, and (3) special programs for diskmaintenance.System Device SubroutinesThis component consists of a library of specialsubroutines, one for each device (except the disk)used by the monitor system programs. These subroutinesand DISKZ are the only device subroutinesused by the monitor system programs.UtilitiesThis component consists of the following stand-alone,self-loading utility programs:• The Disk Cartridge Initialization Program i DCIP)• The Core-Dump-to-Printer ProgramIn general the organization of and flow of controlthrough the 1130 Disk Monitor System, Version 2,is shown in Flowchart DMS01.2