Installing MSOS 5 on the CDC 1700 Simulator
===========================================

1. Overview.

        A Mass Storage Operating System Version 5 (MSOS 5) distribution tape
which will run on the CDC 1700 Simulator is available from bitsavers.org as
bits/CDC/1700_Cyber18/20100524/MSOS5_SL136.tap. At the time, CDC would have
tailored a distribution tape for the customer's specific hardware and this
tape was built for a 64KW 1784 system used by Exxon. Not all of the
peripherals included in the system are implemented on the simulator due to
lack of documentation but enough are available to perform a basic
installation.

2. Utilities

        While implementing this simulator, I developed a number of tools for
manipulating SIMH .tap container files and some of the CDC MSOS -specific file
formats. These utilities are available from the simtools Github repository:

extractors/rawtap

        Allows extract, create and append operations on .tap files.

extractors/cpytap

        Copies a .tap file to a new .tap file while allowing file level edits;
        skip file, replace file, append files and insert files. Any files
        copies from the original source .tap will have their internal record
        structure maintained. Files read from the local file system will be
        written to the destination .tap file with a fixed record size.

converters/cosy

        COSY is a compressed file format used by the CDC 1700 for source
        card decks. This utility allows for the extraction of all files from
        an archive or the creation of a new archive. It assumes that you
        would have used rawtap to extract the archive from a .tap file.

3. Installation

3.1 Quick Installation Using Scripts

        There are 2 scripts provided as part of the distribution for quickly
installing and running MSOS 5.0:

        - msosInstall.simh

          This script can be used to install MSOS 5.0 on a 1733-2 disk unit
          (2 logical drives) from the standard installation tape as described
          above. To perform an installation change to the directory you want
          the install the install to occur in and copy MSOS5_SL136.tap to this
          directory. If you want to install from a different tape, its name
          can be passed on the command line:

              cdc1700 msosInstall.simh install.tap

          Start up the CDC1700 simulator using msosInstall.simh as the
          configuration. The script will automatically supply the date of
          installation for the initializer and the date/time for MSOS 5.0
          when requested. The time, month and day will be set to their
          current values from the host system. The year will be set to a
          20th century year which has the same calendar as the current year
          (MSOS 5.0 is not Y2K compliant).

          While running this script the O/S will reboot twice and a log of
          installation will be left in MSOSinstall.lpt. The final section of
          the installation will be to run the installation verification
          procedure. This will generate 3 errors:

             1. Partition set up error

                The verification procedure checks that partition 0 starts
                below 0x8000. All of the installation tapes on bitsaver.org
                that I've checked have partition 0 starting above 0x8000.

             2. File Manager sequential file error

                The installation procedure only creates disk images for a
                single disk unit. The O/S is configured with 4 disk units
                and a drum. This procedure will attempt to write to all
                direct-access configured in the system and so will fail.

             3. Fortran formatted I/O error

                This error has not been investigated.

        - msosRun.simh

          Once installation is complete, this script may be used to run the
          resulting system. It will use the same disk images created by
          msosInstall.simh and will create a unique file for line printer
          output based on the current date and time. Like the installation
          script it will set the date/time for MSOS 5.0 to the current values
          from the host system with the year set to a 20th century year with
          the same calendar as the current year. As part of the start up
          sequence it will patch MSOS so that the 1728 Card Reader/Punch and
          1752 Drum are not accessible to programs since the simulator has
          no support for these devices.


3.2 Full Installation By Hand

        Installation of MSOS 5 occurs in 2 phases:

        - Phase 1

          In Phase 1, the distribution tape is booted and the initializer
          lays down a skeleton system on the cartridge disk.

        - Phase 2

          In Phase 2, the skeleton system is booted from the cartridge disk
          and the batch subsystem is started to read and process a sequence
          of batch jobs to complete the installation.

It is important that both phases are within the same execution of the CDC
1700 Simulator since phase 1 leaves the tape correctly positioned at the
start of the batch jobs for phase 2.

        The device drivers built into this version of MSOS 5 use specific
versions of the magtape and line printer controllers. The type of these
controllers must be set before attaching host data files. If the controller
types are not set correctly, phase 1 of the installation will complete
successfully but the batch subsystem will refuse to start.

Sample installation run of MSOS 5 (user input to MSOS is marked with "<==="):

    CDC1700 simulator V4.0-0 Beta        git commit id: 9d2079df
    sim> set cpu instr=basic
    sim> set cpu mode65k,64k
    sim> set mt type=1732-3
    sim> att mt0 MSOS5_SL136.tap 
    sim> set lp type=1742
    sim> att lp MSOSinstall.lpt
    LP: creating new file
    sim> att cdd0 MSOS5-A.dsk
    sim> att cdd1 MSOS5-B.dsk
    CDD: creating new file
    sim> boot mt0

    MSOS 5.0 SYSTEM INITIALIZER 
    FWA OF CONTRL = 5000


    DATE MM/DD/YY 
    07/14/88  <============================ Enter date

    Q
    *I,3 <================================= Distribution media is tape
    *I,3

    Q
    *V <=================================== Start installation
    *V
    *V
    *S,SYSMON,$3031 
    *S,SYSDAY,$3236 
    *S,SYSYER,$3832 
    *S,SYSLVL,$3230 
    *V
    *V       1700 MASS STORAGE OPERATING SYSTEM - VER 5.0 
    *V
    *V       EXXON DEVELOPMENT SYSTEM 
    *V
    *YM,LIBEDT,1
    *YM,LOADSD,2
    *YM,JOBENT,3
    *YM,JOBPRO,4
    *YM,PROTEC,5
    *YM,JPLOAD,6
    *YM,JPCHGE,7
    *YM,JPT13,8 
    *YM,JCRDV4,9
    *YM,JLGOV4,10 
    *YM,JPSTV4,11 
    *YM,NAMEV4,12 
    *YM,JPFLV4,13 
    *YM,AFILV4,14 
    *YM,RESTOR,15 
    *YM,RCOVER,16 
    *YM,BRKPT,17
    *YM,ODEBUG,18 
    *YM,SYSCOP,19 
    *YM,SYSSEG,20 
    *YM,MIPRO,21
    *YM,TDFUNC,22 
    *YM,EFSTOR,23 
    *YM,EFLIST,24 
    *YM,VERIFY,25 
    *YM,SCMM17,26 
    *YM,DUMMY1,27 
    *YM,DUMMY2,28 
    *YM,DUMMY3,29 
    *YM,DUMMY4,30 
    *YM,DUMMY5,31 
    *YM,DUMMY6,32 
    *YM,DUMMY7,33 
    *YM,DUMMY8,34 
    *YM,DUMMY9,35 
    *YM,DUMMY0,36 
    *S,N4,$0800 
    *S,END0V4,$7FFF 
    *S,BGNMON,$8000 
    *S,MSIZV4,$FFFF 
    *S,SECTOR,$5BFA 
    * 
    *L       SYSTEM DATA PROGRAM
    CS7C17
        SYSDAT    0000     EXXON DEVELOPMENT SYSTEM            SUMMARY-122
    *L       SPACE REQUEST PROCESSOR
        SPACE     1C21      DECK-ID M29  MSOS 5.0              SUMMARY-136
    * 
    *         SYSTEM CORE RESIDENT PROGRAMS
    * 
    *LP      MONITOR
        NMONI     8000      DECK-ID M10  MSOS 5.0              SUMMARY-136
        RDISP     804D      DECK-ID M23  MSOS 5.0              SUMMARY-110
        RW        81FF      DECK-ID M09  MSOS 5.0              SUMMARY-110
        T14       82AD      DECK-ID M26  MSOS 5.0              SUMMARY-110
        T16       82BE      DECK-ID M04  MSOS 5.0              SUMMARY-110
        PARAME    82C9      DECK-ID M03  MSOS 5.0              SUMMARY-110
        COMMON    833A      DECK-ID M13  MSOS 5.0              SUMMARY-110
        NIPROC    8361      DECK-ID M12  MSOS 5.0              SUMMARY-118
        ALVOL     83F3      DECK-ID M16  MSOS 5.0              SUMMARY-110
        OFVOL     8410      DECK-ID M15  MSOS 5.0              SUMMARY-110
        ALCORE    841D      DECK-ID M17  MSOS 5.0              SUMMARY-110
        DCORE     84CB      DECK-ID M19  MSOS 5.0              SUMMARY-110
        PRTCDR    8634      DECK-ID M18  MSOS 5.0              SUMMARY-110
        NFNR      884E      DECK-ID M21  MSOS 5.0              SUMMARY-141
        NCMPRQ    88C7      DECK-ID M20  MSOS 5.0              SUMMARY-110
        MAKQ      88F7      DECK-ID M08  MSOS 5.0              SUMMARY-110
        ADEV      8925      DECK-ID M22  MSOS 5.0              SUMMARY-132
        TMINT     8A98      DECK-ID M06  MSOS 5.0              SUMMARY-116
        DTIMER    8B2A      DECK-ID M05  MSOS 5.0              SUMMARY-136
        TOD       8B4D      DECK-ID M25  MSOS 5.0              SUMMARY-110
        MINT      8B9C      DECK-ID M07  MSOS 5.0              SUMMARY-116
        TRVEC     8CC6      DECK-ID M14  MSOS 5.0              SUMMARY-116
    *LP      DEBUGGING / CHECKOUT 
        SNAPOL    8D19      DECK-ID M02  MSOS 5.0              SUMMARY-110
        DMP42X    8DD2      DECK-ID B17  PERIPH. DRIVERS 1.0B  SUMMARY-106
        B17332    8EA1      DECK-ID B11  PERIPH. DRIVERS 1.0B  SUMMARY-106
    *LP      FILE MANAGER 
        FILMGR    8EF3      DECK-ID F01  FILE MANAGER 1.0      SUMMARY-124
        RSPCV4    91DC      DECK-ID F02  FILE MANAGER          SUMMARY-116
        SRHFIS    92CE      DECK-ID F03  FILE MANAGER          SUMMARY-110
    *LP      CORE RESIDENT DRIVERS
        EFDATA    94A0      DECK-ID M27  MSOS 5.0              SUMMARY-110
        DUMMY     960D      DECK-ID M30  MSOS 5.0              SUMMARY-110
        D1711     9630      DECK-ID B27  PERIPH. DRIVERS 1.0B  SUMMARY-106
        D17332    97D8      DECK-ID B34  PERIPH. DRIVERS 1.0B  SUMMARY-119
        D1752     9A77      DECK-ID A40  PERIPH. DRIVERS 1.0A  SUMMARY-106
        DPSDSK    9C81      DECK-ID C90  PERIPH. DRIVERS 1.2C  SUMMARY-122
        REWCK     9CB2      DECK-ID B78  PERIPH. DRIVERS 1.0B  SUMMARY-106
        MMEXEC    9CCD      DECK-ID M01  MSOS 5.0              SUMMARY-132
        D17432    9E60      DECK-ID B35  PERIPH. DRIVERS 1.0B  SUMMARY-115
    *LP      REENTRANT FORTRAN RUNTIME LIBRARY
        FORTR     A0A9      DECK-ID A01  FTN 3.3 RUNTIME       SUMMARY-102
        Q8PRMR    A1ED      DECK-ID B01  FTN 3.3 RUNTIME       SUMMARY-102
        PARABR    A217      DECK-ID B02  FTN 3.3 RUNTIME       SUMMARY-102
        Q8F2IR    A228      DECK-ID B03  FTN 3.3 RUNTIME       SUMMARY-102
        ABSR      A2D4      DECK-ID B04  FTN 3.3 RUNTIME       SUMMARY-102
        SQRTFR    A2ED      DECK-ID B05  FTN 3.3 RUNTIME       SUMMARY-102
        SIGNR     A348      DECK-ID B06  FTN 3.3 RUNTIME       SUMMARY-102
        FXFLTR    A374      DECK-ID B07  FTN 3.3 RUNTIME       SUMMARY-102
        EXPR      A3AC      DECK-ID B08  FTN 3.3 RUNTIME       SUMMARY-102
        ALOGR     A44C      DECK-ID B09  FTN 3.3 RUNTIME       SUMMARY-102
        TANHR     A4C3      DECK-ID B10  FTN 3.3 RUNTIME       SUMMARY-102
        SNCSR     A52F      DECK-ID B11  FTN 3.3 RUNTIME       SUMMARY-102
        ATANR     A5F9      DECK-ID B12  FTN 3.3 RUNTIME       SUMMARY-102
        Q8QIOR    A697      DECK-ID C01  FTN 3.3 RUNTIME       SUMMARY-102
        BINARR    A7FC      DECK-ID C02  FTN 3.3 RUNTIME       SUMMARY-102
        IOCODR    A847      DECK-ID D01  FTN 3.3 RUNTIME       SUMMARY-102
        INITLR    A87B      DECK-ID D02  FTN 3.3 RUNTIME       SUMMARY-102
        RSTORR    A88A      DECK-ID D03  FTN 3.3 RUNTIME       SUMMARY-102
        GETCHR    A89A      DECK-ID D04  FTN 3.3 RUNTIME       SUMMARY-102
        IPACKR    A8B4      DECK-ID D05  FTN 3.3 RUNTIME       SUMMARY-102
        UPDATR    A8F2      DECK-ID D06  FTN 3.3 RUNTIME       SUMMARY-102
        DECPLR    A8FF      DECK-ID D07  FTN 3.3 RUNTIME       SUMMARY-102
        INTGRR    A925      DECK-ID D08  FTN 3.3 RUNTIME       SUMMARY-102
        SPACER    A952      DECK-ID D09  FTN 3.3 RUNTIME       SUMMARY-102
        HOLR      A96A      DECK-ID D10  FTN 3.3 RUNTIME       SUMMARY-102
        DCHXR     A9FE      DECK-ID D11  FTN 3.3 RUNTIME       SUMMARY-102
        HXASCR    AA71      DECK-ID D12  FTN 3.3 RUNTIME       SUMMARY-102
        AFMTOR    AAC4      DECK-ID D13  FTN 3.3 RUNTIME       SUMMARY-102
        RFMTOR    AAEE      DECK-ID D14  FTN 3.3 RUNTIME       SUMMARY-102
        AFMTIR    AB07      DECK-ID D15  FTN 3.3 RUNTIME       SUMMARY-102
        RFMTIR    AB35      DECK-ID D16  FTN 3.3 RUNTIME       SUMMARY-102
        ASCHXR    AB4C      DECK-ID D17  FTN 3.3 RUNTIME       SUMMARY-102
        HXDCR     AB87      DECK-ID D18  FTN 3.3 RUNTIME       SUMMARY-102
        FLOTIR    AC17      DECK-ID D19  FTN 3.3 RUNTIME       SUMMARY-102
        FOUTR     AC61      DECK-ID D20  FTN 3.3 RUNTIME       SUMMARY-102
        EOUTR     ACEB      DECK-ID D21  FTN 3.3 RUNTIME       SUMMARY-102
        EWRITR    ADD3      DECK-ID D22  FTN 3.3 RUNTIME       SUMMARY-102
        INTI1R    ADDF      DECK-ID D23  FTN 3.3 RUNTIME       SUMMARY-102
        FORMTR    ADFC      DECK-ID D24  FTN 3.3 RUNTIME       SUMMARY-115
        Q8QFIR    AFFD      DECK-ID D25  FTN 3.3 RUNTIME       SUMMARY-102
        Q8QFLR    B017      DECK-ID D26  FTN 3.3 RUNTIME       SUMMARY-102
        Q8QFXR    B046      DECK-ID D27  FTN 3.3 RUNTIME       SUMMARY-102
        HEXAR     B07D      DECK-ID D28  FTN 3.3 RUNTIME       SUMMARY-102
        HEXDR     B095      DECK-ID D29  FTN 3.3 RUNTIME       SUMMARY-102
        ASCIIR    B0B2      DECK-ID D30  FTN 3.3 RUNTIME       SUMMARY-102
        DECHXR    B0C7      DECK-ID D31  FTN 3.3 RUNTIME       SUMMARY-102
        AFORMR    B0E7      DECK-ID D32  FTN 3.3 RUNTIME       SUMMARY-102
        RFORMR    B103      DECK-ID D33  FTN 3.3 RUNTIME       SUMMARY-102
        FLOTGR    B11F      DECK-ID D34  FTN 3.3 RUNTIME       SUMMARY-102
        FLOTR     B13B      DECK-ID B14  FTN 3.3 RUNTIME       SUMMARY-112
        COMFPR    B389      DECK-ID B15  FTN 3.3 RUNTIME       SUMMARY-102
        SGDBLR    B49C      DECK-ID E01  FTN 3.3 RUNTIME       SUMMARY-102
        Q8D2IR    B4B0      DECK-ID E02  FTN 3.3 RUNTIME       SUMMARY-102
        DABSR     B542      DECK-ID E03  FTN 3.3 RUNTIME       SUMMARY-102
        DSQRTR    B55E      DECK-ID E04  FTN 3.3 RUNTIME       SUMMARY-102
        DSIGNR    B5DE      DECK-ID E05  FTN 3.3 RUNTIME       SUMMARY-102
        DEXPR     B60B      DECK-ID E08  FTN 3.3 RUNTIME       SUMMARY-102
        DLOGR     B6C7      DECK-ID E09  FTN 3.3 RUNTIME       SUMMARY-102
        DSNCSR    B76D      DECK-ID E11  FTN 3.3 RUNTIME       SUMMARY-102
        DATANR    B882      DECK-ID E12  FTN 3.3 RUNTIME       SUMMARY-132
        Q8QDFR    B958      DECK-ID E14  FTN 3.3 RUNTIME       SUMMARY-102
        DOUTR     B974      DECK-ID E15  FTN 3.3 RUNTIME       SUMMARY-102
        DFLOTR    BA7E      DECK-ID E13  FTN 3.3 RUNTIME       SUMMARY-102
        DRSTRR    BEDC      DECK-ID E10  FTN 3.3 RUNTIME       SUMMARY-102
        NXTLOC    BF12      NEXT AVAILABLE LOCATION 
    * 
    *        SYSTEM MASS RESIDENT PROGRAMS
    * 
    *M              LIBEDT       1
        LIBEDT    0203      DECK-ID M35  MSOS 5.0              SUMMARY-122
    *M              LOADSD       2
        LOAD1     0243      DECK-ID M36  MSOS 5.0              SUMMARY-110
        BRNCH1    0236      DECK-ID M37  MSOS 5.0              SUMMARY-132
        PG2KRD    0398      DECK-ID O69  MSOS 5.0              SUMMARY-116
        LIDRV1    03C9      DECK-ID M38  MSOS 5.0              SUMMARY-110
        LCDRV1    041A      DECK-ID M39  MSOS 5.0              SUMMARY-110
        LMDRV1    0447      DECK-ID M40  MSOS 5.0              SUMMARY-110
        LLDRV1    0466      DECK-ID M41  MSOS 5.0              SUMMARY-110
        ADJOF1    0474      DECK-ID M42  MSOS 5.0              SUMMARY-110
        CNVRT1    0480      DECK-ID M43  MSOS 5.0              SUMMARY-110
        LSTOT1    0498      DECK-ID M44  MSOS 5.0              SUMMARY-110
        LINK11    04EB      DECK-ID M45  MSOS 5.0              SUMMARY-110
        LOADR1    052E      DECK-ID M46  MSOS 5.0              SUMMARY-116
        NAMPR1    05A7      DECK-ID M47  MSOS 5.0              SUMMARY-110
        RBDBZ1    0648      DECK-ID M48  MSOS 5.0              SUMMARY-110
        ENTEX1    0741      DECK-ID M49  MSOS 5.0              SUMMARY-110
        XFRPR1    0777      DECK-ID M50  MSOS 5.0              SUMMARY-110
        STBASE    0788      DECK-ID M51  MSOS 5.0              SUMMARY-110
        LNKENT    0870      DECK-ID M52  MSOS 5.0              SUMMARY-110
        LNKCR1    088C      DECK-ID M53  MSOS 5.0              SUMMARY-110
        PATCH     08CD      DECK-ID M54  MSOS 5.0              SUMMARY-110
        TBSCH1    090F      DECK-ID M55  MSOS 5.0              SUMMARY-110
        HASH      0957      DECK-ID M56  MSOS 5.0              SUMMARY-110
        TBSTR1    096F      DECK-ID M57  MSOS 5.0              SUMMARY-110
        PAGE      09C4      DECK-ID M58  MSOS 5.0              SUMMARY-136
        PROGLD    0AB5      DECK-ID M59  MSOS 5.0              SUMMARY-110
        SCAN1     0BB7      DECK-ID M60  MSOS 5.0              SUMMARY-110
        CHPU1     0C7D      DECK-ID M61  MSOS 5.0              SUMMARY-110
        ADJOV2    0C8A      DECK-ID M62  MSOS 5.0              SUMMARY-110
        ADRPR1    0CA3      DECK-ID M63  MSOS 5.0              SUMMARY-110
    *M              JOBENT       3
        JOBENT    0266      DECK-ID M64  MSOS 5.0              SUMMARY-116
        T11       0112      DECK-ID M65  MSOS 5.0              SUMMARY-110
        T7        0149      DECK-ID M66  MSOS 5.0              SUMMARY-110
        T5        026B      DECK-ID M67  MSOS 5.0              SUMMARY-110
        T3        02C4      DECK-ID M68  MSOS 5.0              SUMMARY-110
    *S,N1,P 
    *M              JOBPRO       4
        JOBPRO    026E      DECK-ID M69  MSOS 5.0              SUMMARY-132
        ONE       023D      DECK-ID M70  MSOS 5.0              SUMMARY-110
        TWO       0240      DECK-ID M71  MSOS 5.0              SUMMARY-110
        THREE     0243      DECK-ID M72  MSOS 5.0              SUMMARY-110

     * * *  U N P A T C H E D    E X T E R N A L S    * * * 
      BATLST
    *S,N2,P 
    *M              PROTEC       5
        UPROTK    0275      DECK-ID M73  MSOS 5.0              SUMMARY-115
        JBKILL    044C      DECK-ID M75  MSOS 5.0              SUMMARY-110
    *M              JPLOAD       6
        JPLOAD    0282      DECK-ID M76  MSOS 5.0              SUMMARY-110
    *M              JPCHGE       7
        JPCHGE    0287      DECK-ID M77  MSOS 5.0              SUMMARY-110
        ASCHEX    013E      DECK-ID M78  MSOS 5.0              SUMMARY-110
    *M              JPT13        8
        T13       028C      DECK-ID M79  MSOS 5.0              SUMMARY-110
    *M              JCRDV4       9
        JCRDV4    0291      DECK-ID M80  MSOS 5.0              SUMMARY-136
    *M              JLGOV4      10
        JLGOV4    0295      DECK-ID M81  MSOS 5.0              SUMMARY-110
    *M              JPSTV4      11
        JPSTV4    0298      DECK-ID M84  MSOS 5.0              SUMMARY-110
    *M              NAMEV4      12
        NAMEV4    029A      DECK-ID M85  MSOS 5.0              SUMMARY-110
    *M              JPFLV4      13
        JPFLV4    02A2      DECK-ID M82  MSOS 5.0              SUMMARY-110
    *M              AFILV4      14
        JPF2V4    02A9      DECK-ID M83  MSOS 5.0              SUMMARY-110
    *M              RESTOR      15
        RESTOR    02B3      DECK-ID M86  MSOS 5.0              SUMMARY-114
    *M              RCOVER      16
        RCOVER    02B6      DECK-ID M87  MSOS 5.0              SUMMARY-110
        OUTSEL    0144      DECK-ID M88  MSOS 5.0              SUMMARY-110
        RDMPV4    0189      DECK-ID M89  MSOS 5.0              SUMMARY-110
        MASDMP    0249      DECK-ID M90  MSOS 5.0              SUMMARY-110
    *M              BRKPT       17
        BRKPT1    02BF      DECK-ID N01  MSOS 5.0              SUMMARY-110
    *M              ODEBUG      18
        ODBUG1    02CC      DECK-ID N07  MSOS 5.0              SUMMARY-116
        GETREQ    0120      DECK-ID N08  MSOS 5.0              SUMMARY-110
        LHXREQ    0240      DECK-ID N09  MSOS 5.0              SUMMARY-110
        DPCREQ    0300      DECK-ID N10  MSOS 5.0              SUMMARY-132
        SCNREQ    03C0      DECK-ID N11  MSOS 5.0              SUMMARY-116
        SETREQ    0480      DECK-ID N12  MSOS 5.0              SUMMARY-110
        MBCREQ    04E0      DECK-ID N13  MSOS 5.0              SUMMARY-110
        SCHREQ    05A0      DECK-ID N14  MSOS 5.0              SUMMARY-116
        SPEREQ    0660      DECK-ID N15  MSOS 5.0              SUMMARY-113
        CPPREQ    06C0      DECK-ID N16  MSOS 5.0              SUMMARY-110
        SPPREQ    0720      DECK-ID N17  MSOS 5.0              SUMMARY-110
        ADHREQ    0780      DECK-ID N18  MSOS 5.0              SUMMARY-110
        SBHREQ    07E0      DECK-ID N19  MSOS 5.0              SUMMARY-110
        ALCREQ    0840      DECK-ID N20  MSOS 5.0              SUMMARY-116
        RELREQ    0900      DECK-ID N21  MSOS 5.0              SUMMARY-110
        DACREQ    0960      DECK-ID N22  MSOS 5.0              SUMMARY-116
        PTHREQ    0A80      DECK-ID N23  MSOS 5.0              SUMMARY-116
        MTRREQ    0BA0      DECK-ID N24  MSOS 5.0              SUMMARY-116
        MSDREQ    0C00      DECK-ID N25  MSOS 5.0              SUMMARY-116
        CLUREQ    0CC0      DECK-ID N26  MSOS 5.0              SUMMARY-110
        WCDREQ    0D20      DECK-ID N27  MSOS 5.0              SUMMARY-116
        LASREQ    0D80      DECK-ID N28  MSOS 5.0              SUMMARY-110
        DASREQ    0EA0      DECK-ID N29  MSOS 5.0              SUMMARY-116
        MLUREQ    0F60      DECK-ID N30  MSOS 5.0              SUMMARY-110
        DPTREQ    0FC0      DECK-ID N31  MSOS 5.0              SUMMARY-116
        SLDREQ    1080      DECK-ID N32  MSOS 5.0              SUMMARY-116
        CWAREQ    10E0      DECK-ID N33  MSOS 5.0              SUMMARY-132
        DMHREQ    1200      DECK-ID N34  MSOS 5.0              SUMMARY-116
        SMNREQ    12C0      DECK-ID N35  MSOS 5.0              SUMMARY-116
        SMPREQ    1440      DECK-ID N36  MSOS 5.0              SUMMARY-116
        LSPREQ    1500      DECK-ID N37  MSOS 5.0              SUMMARY-116
        DSPREQ    15C0      DECK-ID N38  MSOS 5.0              SUMMARY-116
        DMSREQ    16E0      DECK-ID N39  MSOS 5.0              SUMMARY-116
        LSOREQ    1860      DECK-ID N40  MSOS 5.0              SUMMARY-116
        CCCREQ    1980      DECK-ID N41  MSOS 5.0              SUMMARY-116
        CCMREQ    1AA0      DECK-ID N42  MSOS 5.0              SUMMARY-116
        CMMREQ    1BC0      DECK-ID N43  MSOS 5.0              SUMMARY-116
        MMMREQ    1CE0      DECK-ID N44  MSOS 5.0              SUMMARY-116
        LICREQ    1E60      DECK-ID N45  MSOS 5.0              SUMMARY-118
        LIOREQ    1FE0      DECK-ID N46  MSOS 5.0              SUMMARY-116
        LAMREQ    2160      DECK-ID N47  MSOS 5.0              SUMMARY-116
        DDPREQ    2280      DECK-ID N48  MSOS 5.0              SUMMARY-116
        LDPREQ    23A0      DECK-ID N49  MSOS 5.0              SUMMARY-116
        LDOREQ    24C0      DECK-ID N50  MSOS 5.0              SUMMARY-116
        DMDREQ    2640      DECK-ID N51  MSOS 5.0              SUMMARY-116
        WDKREQ    27C0      DECK-ID N52  MSOS 5.0              SUMMARY-116
        LSTREQ    28E0      DECK-ID N53  MSOS 5.0              SUMMARY-116
        PRINT     2A60      DECK-ID N54  MSOS 5.0              SUMMARY-116
        GETFLD    2B20      DECK-ID N55  MSOS 5.0              SUMMARY-110
        ASHX      2BE0      DECK-ID N56  MSOS 5.0              SUMMARY-110
        DMPBUF    2C40      DECK-ID N57  MSOS 5.0              SUMMARY-116
        ASCDEC    2D00      DECK-ID N58  MSOS 5.0              SUMMARY-110
        HXAS      2D60      DECK-ID N59  MSOS 5.0              SUMMARY-110
        DECDMP    2DC0      DECK-ID N60  MSOS 5.0              SUMMARY-116
        FETMM     2E80      DECK-ID N61  MSOS 5.0              SUMMARY-132
        PNTMD     2FA0      DECK-ID N62  MSOS 5.0              SUMMARY-116
        MASOT     3060      DECK-ID N63  MSOS 5.0              SUMMARY-116
        CONFM     3180      DECK-ID N64  MSOS 5.0              SUMMARY-116
        GETINT    32A0      DECK-ID N65  MSOS 5.0              SUMMARY-116
        FLCVSG    3360      DECK-ID N66  MSOS 5.0              SUMMARY-116
        FLCVDB    3480      DECK-ID N67  MSOS 5.0              SUMMARY-116
        NAMEMS    35A0      DECK-ID N68  MSOS 5.0              SUMMARY-110
        DCONV     3A20      DECK-ID N69  MSOS 5.0              SUMMARY-110
        LAZY2     3B40      DECK-ID N70  MSOS 5.0              SUMMARY-110
        ODDFLT    3C00      DECK-ID N71  MSOS 5.0              SUMMARY-110
        ODDFTN    3CC0      DECK-ID N72  MSOS 5.0              SUMMARY-110
        ECONV     4080      DECK-ID N73  MSOS 5.0              SUMMARY-110
        LAZY1     4140      DECK-ID N74  MSOS 5.0              SUMMARY-110
        ODFLOT    4200      DECK-ID N75  MSOS 5.0              SUMMARY-110
        ODFXFL    4440      DECK-ID N76  MSOS 5.0              SUMMARY-110
    *M              SYSCOP      19
        SYSCOP    0384      DECK-ID N77  MSOS 5.0              SUMMARY-110
    *M              SYSSEG      20
        CO1ST     0389      DECK-ID N78  MSOS 5.0              SUMMARY-110
        CO2ND     04E0      DECK-ID N79  MSOS 5.0              SUMMARY-136
        CO3RD     0D80      DECK-ID N80  MSOS 5.0              SUMMARY-110
        COLAST    1500      DECK-ID N81  MSOS 5.0              SUMMARY-110
    *M              MIPRO       21
        MIPRO     03C2      DECK-ID N06  MSOS 5.0              SUMMARY-110

     * * *  U N P A T C H E D    E X T E R N A L S    * * * 
      CRIMPT
      INDACS
      TSUTIL
    *M              TDFUNC      22
        TDFUNC    03C9      DECK-ID O67  MSOS 5.0              SUMMARY-110
    *M              EFSTOR      23
        EFSTOR    03CD      DECK-ID N04  MSOS 5.0              SUMMARY-110
    *M              EFLIST      24
        EFLIST    03D2      DECK-ID N05  MSOS 5.0              SUMMARY-123
    *M              VERIFY      25
        VERFY1    03F0      DECK-ID O24  MSOS 5.0              SUMMARY-110
    *M              SCMM17      26
        SCMEXC    03F5      DECK-ID O54  MSOS 5.0              SUMMARY-117
    *M              DUMMY1      27
    *M              DUMMY2      28
    *M              DUMMY3      29
    *M              DUMMY4      30
    *M              DUMMY5      31
    *M              DUMMY6      32
    *M              DUMMY7      33
    *M              DUMMY8      34
    *M              DUMMY9      35
    *M              DUMMY0      36
    * 
    *        MASS RESIDENT DRIVERS
    * 
    *M              COSY DRIVER 
        DCOSY     0405      DECK-ID M34  MSOS 5.0              SUMMARY-114
        NXTLOC    02F0      NEXT AVAILABLE LOCATION 
    *S,SCOSY,S
    *S,LCOSY,P
    *M              1732-3 616 MAG TAPE 
        D17323    040D      DECK-ID B33  PERIPH. DRIVERS 1.0B  SUMMARY-114
        D327TR    0442      DECK-ID B36  PERIPH. DRIVERS 1.0B  SUMMARY-106
        NXTLOC    0565      NEXT AVAILABLE LOCATION 
    *S,S17323,S 
    *S,L17323,P 
    *M              1732-3 616 MAG TAPE LONG RECORD 
        D7323L    041C      DECK-ID B38  PERIPH. DRIVERS 1.0B  SUMMARY-114
        NXTLOC    0539      NEXT AVAILABLE LOCATION 
    *S,S7323L,S 
    *S,L7323L,P 
    *M              PSEUDO TAPE 
        DPSUDO    042A      DECK-ID F04  FILE MANAGER          SUMMARY-114
        NXTLOC    03CD      NEXT AVAILABLE LOCATION 
    *S,SPSUDO,S 
    *S,LPSUDO,P 
    *M              1742-30/120 LINE PRINTER
        D42312    0435      DECK-ID B37  PERIPH. DRIVERS 1.0B  SUMMARY-132
        T5954     01AF      DECK-ID B77  PERIPH. DRIVERS 1.0B  SUMMARY-112
        NXTLOC    023F      NEXT AVAILABLE LOCATION 
    *S,S42312,S 
    *S,L42312,P 
    *M              1728-430 CARD READER/PUNCH - 026 FORMAT 
        D1728     043B      DECK-ID A30  PERIPH. DRIVERS 1.0A  SUMMARY-106
        CR026     03A2      DECK-ID A16  PERIPH. DRIVERS 1.0A  SUMMARY-106
        CP026     03C2      DECK-ID A14  PERIPH. DRIVERS 1.0A  SUMMARY-106
        NXTLOC    0402      NEXT AVAILABLE LOCATION 
    *S,S1728,S
    *S,L1728,P
    *M              1728-430 CARD READER/PUNCH - 029 FORMAT 
        D1728     0446      DECK-ID A30  PERIPH. DRIVERS 1.0A  SUMMARY-106
        CR029     03A2      DECK-ID A17  PERIPH. DRIVERS 1.0A  SUMMARY-106
        CP029     03C2      DECK-ID A15  PERIPH. DRIVERS 1.0A  SUMMARY-106
        NXTLOC    0402      NEXT AVAILABLE LOCATION 
    * 
    *        MASS RESIDENT FILE MANAGER 
    * 
    *M
        DEFFIL    0451      DECK-ID F05  FILE MANAGER          SUMMARY-116
        FILSPC    0186      DECK-ID F06  FILE MANAGER          SUMMARY-110
        RPEND     0233      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP01,S 
    *M
        RELFIL    0457      DECK-ID F08  FILE MANAGER          SUMMARY-110
        RELSPC    0092      DECK-ID F09  FILE MANAGER          SUMMARY-110
        RPEND     0141      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP02,S 
    *M
        DEFIDX    045B      DECK-ID F10  FILE MANAGER          SUMMARY-110
        SQRTFM    0098      DECK-ID F11  FILE MANAGER          SUMMARY-110
        FILSPC    00A8      DECK-ID F06  FILE MANAGER          SUMMARY-110
        RPEND     0155      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP03,S 
    *M
        LOKFIL    045F      DECK-ID F12  FILE MANAGER          SUMMARY-110
        RPEND     004D      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP04,S 
    *M
        UNLFIL    0460      DECK-ID F13  FILE MANAGER          SUMMARY-110
        RPEND     003D      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP05,S 
    *M
        STOSEQ    0461      DECK-ID F14  FILE MANAGER          SUMMARY-110
        FILSPC    00C6      DECK-ID F06  FILE MANAGER          SUMMARY-110
        RPEND     0173      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP06,S 
    *M
        STODIR    0465      DECK-ID F15  FILE MANAGER          SUMMARY-110
        RPEND     008D      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP07,S 
    *M
        STOIDX    0467      DECK-ID F20  FILE MANAGER          SUMMARY-110
        HASHCD    0341      DECK-ID F16  FILE MANAGER          SUMMARY-110
        GETKID    034C      DECK-ID F17  FILE MANAGER          SUMMARY-110
        FILSPC    0373      DECK-ID F06  FILE MANAGER          SUMMARY-110
        RPEND     0420      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP08,S 
    *M
        EDFDMY    0472      DECK-ID F27  FILE MANAGER          SUMMARY-116
        FILSPC    0472      DECK-ID F06  FILE MANAGER          SUMMARY-110
        RPEND     00AF      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMREDF,S 
    *M
        EDRDMY    0474      DECK-ID F28  FILE MANAGER          SUMMARY-116
        RTNSPC    0474      DECK-ID F19  FILE MANAGER          SUMMARY-110
        RPEND     00A2      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMREDR,S 
    *M
        RTVSEQ    0476      DECK-ID F18  FILE MANAGER          SUMMARY-110
        RTNSPC    018B      DECK-ID F19  FILE MANAGER          SUMMARY-110
        RPEND     022B      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP09,S 
    *M
        RTVDIR    047C      DECK-ID F21  FILE MANAGER          SUMMARY-110
        RTNSPC    0115      DECK-ID F19  FILE MANAGER          SUMMARY-110
        RPEND     01B5      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP10,S 
    *M
        RTVIDX    0481      DECK-ID F22  FILE MANAGER          SUMMARY-110
        HASHCD    0258      DECK-ID F16  FILE MANAGER          SUMMARY-110
        GETKID    0263      DECK-ID F17  FILE MANAGER          SUMMARY-110
        RTNSPC    028A      DECK-ID F19  FILE MANAGER          SUMMARY-110
        RPEND     032A      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP11,S 
    *M
        RTVIDO    048A      DECK-ID F23  FILE MANAGER          SUMMARY-118
        GETKID    0260      DECK-ID F17  FILE MANAGER          SUMMARY-110
        RTNSPC    0287      DECK-ID F19  FILE MANAGER          SUMMARY-110
        RPEND     0327      DECK-ID F07  FILE MANAGER          SUMMARY-110
    *S,FMRP12,S 
    *M
        FMDUMY    0493      DECK-ID F24  FILE MANAGER          SUMMARY-110
    *S,FMREND,S 
    *S,JFILV4,S     SPECIFY THE JOB FILE TABLE SPACE
    *M,JFILV4+$40 
    *T       END OF SYSTEM

     * * *  U N P A T C H E D    E X T E R N A L S    * * * 
      PARITY
      POWERU
      INITIALIZATION COMPLETED - YOU MAY AUTOLOAD 
    Simulation stopped, P: 5914 (  18FF                    JMP*    $FF)
    sim> autoload cdd
    sim> run 0



    MSOS 5.0--PSR LEVEL  120   01/26/82  

 
    SET PROGRAM PROTECT  

    Simulation stopped, P: 1E13 (  4CF0                    STQ*    ($F0))
    sim> set cpu protect
    sim> c


    EXXON DEVELOPMENT SYSTEM 


    65K MODE

 
    CHECKING FILES -  OK


    ENTER DATE/TIME  MMDDYYHHMM 

    0714881208 <============================ Enter date/time
    DATE: 14 JUL 88   TIME: 1208:00 
    MI <==================================== ^G (Control + G)  for
                                             manual interrupt
    *BATCH <================================ Start batch subsystem
    *CTO,    MSOS 5.0 INSTALLATION COMPLETED - YOU MAY AUTOLOAD
    Simulation stopped, P: 8592 (P 18FB                    JMP*    $FB)
    sim> q
    Goodbye


Output from the batch jobs is sent to the line printer.


4. MSOS 5

4.1 Limitations

        The distribution tapes for MSOS 5 were generated by CDC individually
for each customer so the one we have available (MSOS5_SL136.tap) is for a
machine initially installed at Exxon. This particular system included 4 1733-2
disk drives and a 1752 drum. The 1733-2 disks are full supported by the
simulator but the 1752 drum is not since I have not been able to locate any
documentation of the programming interface. The file manager storage is spread
out over all of the above devices so there will always be at least 1 error
detected when trying to create files. It is possible to patch the system so
that some of these devices are no longer present. Create a file "patchMSOS5"
in the directory you would normally run the emulator and add the following:

       # Patch out unwanted devices
       # 1752 drum
       d 057C 0649
       # 1733-2 unit 3
       d 0589 0649
       # 1733-2 unit 2
       d 0570 0649
       # 1733-2 unit 1
       d 056F 0649
       # 1728 Card Reader/Punch
       d 056D 0649
       d 057E 0649
       d 0589 0649
       #
       set cpu protect
       continue

When the system boots and asks the operator to "SET PROGRAM PROTECT", use ^E
to get a "sim> " prompt and execute this script with "do patchMSOS5". The
unwanted devices will be replaced with software dummy alternate device.

4.2 Using MSOS 5

        The MSOS 5 reference manual contains all of this information (and more)
and is available from bitsavers.org as
pdf/cdc/1700/msos/MSOS_5/96769400C_MSOS_Version_5_Reference_Oct77.pdf.

        To start using MSOS 5, use the "autoload cdd/run 0" as described above
to start execution of the MSOS 5 installation. Enable protect mode when
requested and enter the current date and time (the system is not Y2K
compliant so dates are only good through 1999).

        The installation tape (MSOS5_SL136.tap) includes most optional
components; Macro Assembler, Fortran Compiler, File Manager, Sort/Merge. (So
far the only component I have found missing is RPG and there appears to be a
tape available on bitsavers.org).

        Console input is only accepted once the manual interrupt character
(Control + G) has been typed and, even then, only a limited set of commands
is accepted. To execute applications from within the program library you must
start the batch sub-system and type in batch commands on the console. To
start batch and create a new job:

    MI <==================================== ^G (Control + G)  for
                                                 manual interrupt
    *BATCH <================================ Start batch subsystem
    J
    *JOB <================================== Start a new batch job
    J

4.3 MSOS 5 Utilities

        As an example the following sequence will output the logical unit table
to the printer:

    *LULIST <=============================== Load the listing program

    E *E <================================== Start execution - the first
                                                 "E" is output by the loader
    J

In this example, the initial "E" was an indication that the program
included some unpatched externals. At this point the following inputs are
valid:

        *        Causes execution regardless of unpatched externals

        *E       Resolves unpatched externals with core-resident entry
                 points and, if none are left, causes execution.

        *T       Causes job termination.

Using the same example we can change the logical device assignments so that
the output will be on the comment device (the console teletype):

    *K,L4 <================================ Set system print unit to teletype
    J 
    *LULIST
      E10                                   List of unpatched externals
      LOG1A 
      SYSID 
      SYSYER
      SYSDAY
      SYSMON

    E *E <================================= Resolve externals and execute
     

    MSOS 5.0 LOGICAL UNIT LISTING FOR  EXXON DEVELOPMENT SYSTEM        01/26/82
    LU. EQUIPMENT DESCRIPTION             READ/WRITE  CLASS CODE       EQ NO
    01. SOFTWARE  CORE ALLOCATOR          READ/WRITE  NO CLASS CODE    EQ 00
    02. SOFTWARE  DUMMY ALTERNATE DEVICE  READ/WRITE  NO CLASS CODE    EQ 00
    03. SOFTWARE  DUMMY ALTERNATE DEVICE  READ/WRITE  NO CLASS CODE    EQ 00
    04. 1711 TELETYPEWRITER               READ/WRITE  TELETYPE         EQ 01
    05. COSY UNIT                         READ/WRITE  MAGNETIC TAPE    EQ 00
    06. 1732-3/616-92 MAG TAPE            READ/WRITE  MAGNETIC TAPE    EQ 07
    07. PSEUDO TAPE UNIT                  READ/WRITE  MAGNETIC TAPE    EQ 00
    08. 1733-2/856-4 DISK UNIT (4.5M)     READ/WRITE  MASS STORAGE     EQ 03
    09. 1742-120 LINE PRINTER             WRITE ONLY  LINE PRINTER     EQ 04
    10. 1732-3/616-92 MAG TAPE            READ/WRITE  MAGNETIC TAPE    EQ 07
    11. 1728/430  CARD READER/PUNCH       READ/WRITE  CARD RDR/PUNCH   EQ 10
    12. 1742-120 LINE PRINTER             WRITE ONLY  LINE PRINTER     EQ 04
    13. 1733-2/856-4 DISK UNIT (4.5M)     READ/WRITE  MASS STORAGE     EQ 03
    14. 1733-2/856-4 DISK UNIT (4.5M)     READ/WRITE  MASS STORAGE     EQ 03
    15. 1733-2/856-4 DISK UNIT (4.5M)     READ/WRITE  MASS STORAGE     EQ 03
    16. 1732-3/616-92 MAG TAPE            READ/WRITE  MAGNETIC TAPE    EQ 07
    17. 1732-3/616-92 MAG TAPE            READ/WRITE  MAGNETIC TAPE    EQ 07
    18. 1732-3/616-92 MAG TAPE            READ/WRITE  MAGNETIC TAPE    EQ 07
    19. PSEUDO TAPE UNIT                  READ/WRITE  MAGNETIC TAPE    EQ 00
    20. PSEUDO TAPE UNIT                  READ/WRITE  MAGNETIC TAPE    EQ 00
    21. PSEUDO TAPE UNIT                  READ/WRITE  MAGNETIC TAPE    EQ 00
    22. PSEUDO DISK DRIVER                READ/WRITE  MASS STORAGE     EQ 00
    23. PSEUDO DISK DRIVER                READ/WRITE  MASS STORAGE     EQ 00
    24. PSEUDO DISK DRIVER                READ/WRITE  MASS STORAGE     EQ 00
    25. PSEUDO DISK DRIVER                READ/WRITE  MASS STORAGE     EQ 00
    26. 1752      DRUM UNIT               READ/WRITE  MASS STORAGE     EQ 02
    27. COSY UNIT                         READ/WRITE  MAGNETIC TAPE    EQ 00
    28. 1728/430  CARD READER/PUNCH       READ/WRITE  CARD RDR/PUNCH   EQ 10
    29. 1732-3/616-92 MAG TAPE            READ/WRITE  MAGNETIC TAPE    EQ 07
    30. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    31. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    32. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    33. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    34. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    35. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    36. 1732-3/616-92 MAG TAPE            READ/WRITE  MAGNETIC TAPE    EQ 07
    37. 1732-3/616-92 MAG TAPE            READ/WRITE  MAGNETIC TAPE    EQ 07
    38. 1742-120 LINE PRINTER             WRITE ONLY  LINE PRINTER     EQ 04
    39. 1728/430  CARD READER/PUNCH       READ/WRITE  CARD RDR/PUNCH   EQ 10
    40. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    41. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    42. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    43. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    44. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    45. 1743-2 ASYN COMM CONTR            READ/WRITE  TELETYPE         EQ 05
    46. 1711 TELETYPEWRITER               READ/WRITE  TELETYPE         EQ 01
    J 


4.4 Software Development Tools

        The easiest way to make use of the software development tools (Macro
Assembler and Fortran Compiler) is through the batch system. You will need to
patch out at least the 1728 Card Reader/Punch for this to work (see section
4.1 above). For this description I'm going to assume the source code
(assembler or Fortran) is available on the host system (I'm assuming a Linux
or Unix derivative system). You will need the mksimtape utility available in
the simtools respository on github:

  1. Create the source file (e.g. test.ftn) in upper case only.

  2. Wrap the source code with compiler directives:

           OPT ABC
                PROGRAM XYZ
          C     FORTRAN PROGRAM
                ...
                ...
           MON

    The OPT/MON commands must be indented by 1 space. The OPT command specifies
    what the compiler is to do with the input; generate listing, objects etc.
    The MON command causes the compiler to  return control to the operating
    system once the compilation is complete.

  3. Wrap the source again with batch directives:

          *JOB
          *FTN
           OPT LAPX
                PROGRAM XYZ
          C     COMMENT
                ...
                ...
                END
           MON
          *CTO,COMPILATION COMPLETE
          *LGO
          data
          *Z

    This will compile the source code, send a message to the comment device
(typically the console TTY) and then load and execute the program. If the
program reads data from standard input it should follow the *LGO command.

  4. The compiler/assembler expects each line of input to be in a separate
     record on magtape so we need to convert the input file into fixed length
     records. On Linux/Unix, dd will do this:

          dd if=test.ftn of=test.blk cbs=72 conv=block

  5. Write the file to a .tap container:

          mksimtape test.blk:72 >test.tap

  6. Now boot up MSOS5 in the simulator, attach test.tap to mt0, type ^G to
     get the system's attention and type *BATCH to start the batch system
     running. Listings should be sent to the line printer along with any
     output from the application.

If you want to code in Macro Assembler, the operations are the same; change
*FTN to *ASSEM and change the OPT parameters. Documentation for both the Macro
Assembler and Fortran compiler are available on bitsavers.org.