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FORTRAN COMMON I/O PACKAGE - IOEX VERSION

by Paul McJones last modified 2005-06-01 20:11

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$JOB   ASSEMBLY OF MONITOR, COMPILER SECTIONS 1 THROUGH 6 OF           $00000010
$*     FORTRAN II PROCESSOR, 7090-FO-928                                00000020
$*     VERSION 3, MODIFICATION LEVEL 35                             (35)00000030
$EXECUTE       IBSFAP                                                  $00000050
*      FORTRAN COMMON I/O PACKAGE  IOEX VERSION                         F0000000
*      FAP                                                              F0000020
*      FORTRAN COMMON I/O PACKAGE  IOEX VERSION                         F0000030
       COUNT   2000                                                     F0000040
       ABS                                                              F0000050
       LBL     9F00,X                                                   F0000060
       SST     IBSYS                                                   $F0000070
       EJECT                                                            F0000920
       SPACE   10                                                       F0000930
       EJECT                                                            F0000940
       EJECT                                                            F0000950
       REM PARAMETERS VARIABLE AT ASSEMBLY TIME                         F0000960
       REM                                                              F0000970
 MONIT EQU     12             NUMBER OF CELLS RESERVED FOR MONITOR.     F0000980
TOPMEM SYN     SYSEND-64      TOP OF MEMORY AVAILABLE TO SYSTEMS        F0000990
TOPIOP SYN     TOPMEM         TOP OF AD INTERIM IOP                     F0001000
BOTIOP SYN     TOPIOP-2111    LOWER LIMIT OF IOP                        F0001010
TOPTAB SYN     BOTIOP-1       TOP OF AVAILABLE TABLE BUFFERS            F0001020
BOTTOM SYN     SYSORG+MONIT   LOAD POINT FOR FORTRAN SYSTEM RECORDS     F0001030
(PCBK) SYN     BOTTOM-1       OBJCT PROGRAM COMMON BREAK,,PROGRAM BREAK F0001040
(DORG) SYN     BOTTOM         LOAD POINT FOR DIAGNOSTIC RECORD.         F0001050
       REM                                                              F0001060
SYSTAP EQU     1 (SYSLB1)     FORTRAN SYSTEM TAPE                       F0001070
LIBTAP EQU     1 (SYSLB1)     FORTRAN LIBRARY TAPE                      F0001080
FINTAP EQU     2 (SYSUT3)     INTERMEDIATE TABLE TAPE, FIRST            F0001090
SINTAP EQU     3 (SYSUT4)     INTERMEDIATE TABLE TAPE, SECOND           F0001100
TINTAP EQU     4 (SYSUT1)     INTERMEDIATE FORTRAN/FAP TAPE, THIRD      F0001110
MINTAP EQU     5 (SYSIN1)     MONITOR INPUT TAPE                        F0001120
MLSTAP EQU     6 (SYSOU1)     MONITOR LISTING OUTPUT TAPE               F0001130
MBNTAP EQU     7 (SYSPP1)     MONITOR BINARY OUTPUT TAPE                F0001140
MCHTAP EQU     8 (SYSUT2)     MONITOR CHAIN INTERMEDIATE TAPE           F0001150
SNPTAP EQU     9 (SYSCK1)     SNAP-SHOT TAPE                            F0001160
       REM                                                              F0001170
 NTAPE EQU     16             MAXIMUM NUMBER OF LOGICAL TAPES IN SYSTEM F0001180
 NCHAN EQU     4              MAXIMUM NUMBER OF CHANNELS IN SYSTEM      F0001190
       REM                    C MUST BE A MULTIPLE OF 2, TABSZ ALSO.    F0001200
 TABSZ EQU     80             MAXIMUM SIZE OF IOP DICTIONARY            F0001210
       EJECT                                                            F0001220
       REM          LOWER MEMORY MAP                                    F0001230
       REM                OF                                            F0001240
       REM            IBSYS-FORTRAN                                     F0001250
       REM                                                              F0001260
SYSORG REM     WEREIN              BCD FLAG FOR SAVING FLAGBOX          F0001270
       REM     SAVE SI                                                  F0001280
       REM          MQ                                                  F0001290
       REM          AC                                                  F0001300
       REM          QP/XR2,,XR4                                         F0001310
       REM          CONTENTS OF LOC. 0                              (25)F0001320
       REM     TXI *-1,,XR1    PROGRAM                                  F0001330
       REM     TRIGGER STATUS BITS                                  (25)F0001340
       REM     FLAGBX                                                   F0001350
       REM     LINECT              LINES THIS JOB,, PAGE NO. THIS       F0001420
       REM                         NOT USED                            $F0001430
       REM     PRCBRK              COMMON BREAK,, PROGRAM BREAK         F0001440
BOTTOM REM                                                              F0001450
       EJECT                                                            F0001460
       EJECT                                                            F0001470
       REM                                                              F0001480
       REM                                                              F0001490
       REM                                                              F0001500
       REM                                                              F0001510
       REM DEFINITIONS OF OPERATION MNEMONICS FOR IOPX                  F0001520
       REM                                                              F0001530
       REM                    OPERATION RECORD   ENDFILE     CHECK      F0001540
     K EQU     512                                                      F0001550
(WROW) EQU     32*K+16+8+1    WRITE     ROW BIN              IMMEDIATE  F0001560
(RDEC) EQU     32*K+8+4+2     READ      DECIMAL  PERMITTED   IMMEDIATE  F0001570
(WEFC) EQU     32*K+8+4+1     WRITE     ENDFILE              IMMEDIATE  F0001580
(RBEC) EQU     32*K+8+4       READ      BINARY   PERMITTED   IMMEDIATE  F0001590
(WDNC) EQU     32*K+8+2+1     WRITE     DECIMAL              IMMEDIATE  F0001600
(RDNC) EQU     32*K+8+2       READ      DECIMAL  PROHIBITED  IMMEDIATE  F0001610
(WBNC) EQU     32*K+8+1       WRITE     BINARY               IMMEDIATE  F0001620
(RBNC) EQU     32*K+8         READ      BINARY   PROHIBITED  IMMEDIATE  F0001630
(RDEP) EQU     32*K+4+2       READ      DECIMAL  PERMITTED   LATER      F0001640
(WEFP) EQU     32*K+4+1       WRITE     ENDFILE              LATER      F0001650
(RBEP) EQU     32*K+4         READ      BINARY   PERMITTED   LATER      F0001660
(WDNP) EQU     32*K+2+1       WRITE     DECIMAL              LATER      F0001670
(RDNP) EQU     32*K+2         READ      DECIMAL  PROHIBITED  LATER      F0001680
(WBNP) EQU     32*K+1         WRITE     BINARY               LATER      F0001690
(RBNP) EQU     32*K           READ      BINARY   PROHIBITTED LATER      F0001700
(SKDC) EQU     16*K+8+2       SKIP      DECIMAL              IMMEDIATE  F0001710
(SKBC) EQU     16*K+8         SKIP      BINARY               IMMEDIATE  F0001720
       REM                    BACKSPACE                      FOR BTT    F0001730
(SKDP) EQU     16*K+2         SKIP      DECIMAL              LATER      F0001740
(SKBP) EQU     16*K           SKIP      BINARY               LATER      F0001750
       REM                    BACKSPACE                      NONE       F0001760
(CHKU) EQU     8*K            DELAY AND CHECK LAST ACTIVITY ON LOG TAPE F0001770
(SUAV) EQU     8*K+2+1        SET UNIT(S) AVAILABLE                    $F0001771
(SUNV) EQU     8*K+2          SET UNIT(S) UNAVAILABLE                  $F0001772
(TPER) EQU     4*K            ERROR ON TAPE RECORD FOUND BY COMPILER    F0001780
(SNAP) EQU     1*K            DUMP MEMORY AND PANEL ON LOG TAPE 9       F0001790
       REM                                                              F0001800
       REM     CALL FOR TAPE DATA TRANSMIT                              F0001810
       REM                    TSX    (TAPE),4                           F0001820
       REM                    PZE    IOCOM,T1,FLAGS                     F0001830
       REM                   (MZE    IOCOM,T1,FLAGS PRINT 'COND IGNORD')F0001840
       REM                    PZE    ,,TAPNO        OMIT LABEL          F0001850
       REM                   (PZE    LABEL,T2,TAPNO CHECK LABEL)        F0001860
       REM                   (MZE    LABEL,T2,TAPNO OMIT LABEL CHECK)   F0001870
       REM                    PZE    ERRET,T3       PRINT ERROR MESSAGE F0001880
       REM                   (MZE    ERRET,T3       DELET ERROR MESSAGE)F0001890
       REM                                                              F0001900
       REM     CALL FOR TAPE REPOSITION                                 F0001910
       REM                    TSX    (TAPE),4                           F0001920
       REM                    PZE    SKLST,T1,FLAGS                     F0001930
       REM                   (MZE    SKLST,T1,FLAGS PRINT 'COND IGNORD')F0001940
       REM                    PZE    ,,TAPNO        OMIT LABEL          F0001950
       REM                   (PZE    LABEL,T2,TAPNO CHECK LABEL)        F0001960
       REM                   (MZE    LABEL,T2,TAPNO OMIT LABEL CHECK)   F0001970
       REM                    PZE    ERRET,T3       PRINT ERROR MESSAGE F0001980
       REM                   (MZE    ERRET,T3       DELET ERROR MESSAGE)F0001990
       REM                                                              F0002000
       REM     CALL FOR SNAPSHOT                                        F0002010
       REM                    TSX    (TAPE),4                           F0002020
       REM                    PZE    SNLST,T1,FLAGS                     F0002030
       REM                    PZE    LABEL,T2,PARNO                     F0002040
       REM                    PZE    ERRET,T3      (NOT SIGNIFICANT)    F0002050
       REM                                                              F0002060
       REM                                                              F0002070
       REM     RETURN AFTER ERROR ON PRIOR ACTIVITY                     F0002080
       REM     TO PRINT ERROR MESSAGE AND CALL MACHINE ERROR RECORD     F0002090
       REM                    TSX    (TAPE),4                           F0002100
       REM                    PZE    ERROR,T1,FLAGS                     F0002110
       REM                   (MZE    ERROR,T1,FLAGS PRINT ERROR IGNORED)F0002120
       REM                    PZE    LABEL,T2,TAPNO                     F0002130
       REM                   (MZE    LABEL,T2,TAPNO RETURN TO CALLER)   F0002140
       REM                    ERRET,T3      (NOT SIGNIFICANT)           F0002150
       REM                                                              F0002160
       REM     CALL FOR CHECK PRIOR ACTIVITY OR FOR CHANGING           $F0002170
       REM     THE STATUS OF TAPES IN THE AVAILABILITY CHAIN           $F0002171
       REM                    TSX    (TAPE),4                           F0002180
       REM                    PZE    TAPNO,T1,FLAGS                     F0002190
       REM                    (FOR ALL TAPES IF TAPNO,T1 IS ZERO ON    $F0002191
       REM                    A SYSUAV CALL)                           $F0002192
       REM                                                              F0002200
       REM     CALL FOR ONLINE PRINT                                    F0002210
       REM                    TSX    (PRNT),4                           F0002220
       REM                    PZE    FWORD,,COUNT   PROGRAM CONTROL     F0002230
       REM                   (MZE    FWORD,,COUNT   SINGLE SPACE)       F0002240
       REM                                                              F0002250
       REM     CALL FOR ONLINE PUNCH                                    F0002260
       REM                    TSX    (PNCH),4                           F0002270
       REM                    PZE    FWORD,,COUNT   ROW BINARY          F0002280
       REM                   (MZE    FWORD,,COUNT   COLUMN BINARY)      F0002290
       REM                   (MON    FWORD,,COUNT   HOLLERITH)          F0002300
       REM                    IN COLUMN BINARY PACKAGE ROTATES CONTENTS F0002310
       REM                    OF 24 WORD ROW BINARY BUFFER IN WHICH THE F0002320
       REM                    COLUMN BINARY BITS ARE INCLUDED IN 9L     F0002330
       REM                    AND CHECKSUM, AND NO GARBAGE APPEARS ON   F0002340
       REM                    CARD IMAGE. WORD COUNT NOT SIGNIFICANT.   F0002350
       REM                    WORD COUNT MUST BE GREATER THAN ZERO.     F0002360
       REM                                                              F0002370
       REM     CALL TO READ NEXT SYSTEM RECORD                          F0002380
       REM                    TSX     (LOAD),4,N                        F0002390
       REM                    BCI     1,RECNAM   (IF N = 1, FOR DISK)   F0002400
       REM                                                              F0002410
       REM     CALL TO DIAGNOSTIC                                       F0002420
       REM                    TSX    ERROR,4                            F0002430
       REM                     .                                        F0002440
       REM                     .                                        F0002450
       REM              ERROR TXI    (DIAG),,-NN                        F0002460
       REM                    PZE                ADDITIONAL             F0002470
       REM                    PZE                INFORMATION            F0002480
       REM                             -NN IS ZERO FOR MACHINE ERROR.   F0002490
       REM                             -NN IS A UNIQUE NUMBER ASSOCIATEDF0002500
       REM                                 WITH SOURCE PROGRAM ERROR.   F0002510
       REM                                                              F0002520
       REM     CALL TO SOURCE ERROR RECORD                              F0002530
       REM                                                              F0002540
       REM                    TSX    (SECL),4                           F0002550
       REM                                                              F0002560
       REM     CALL TO MACHINE ERROR RECORD                             F0002570
       REM                                                              F0002580
       REM                    TSX    (MECL),4                           F0002590
       REM                                                              F0002600
       REM     CALL TO RESTORE MEMORY AND HALT                      (31)F0002610
       REM                                                              F0002620
       REM     TSX     (DGLD),4                                     (31)F0002630
       REM                                                              F0002640
       REM     CALL TO RESTORE CONSOLE                                  F0002650
       REM                                                              F0002660
       REM                    STL    (REST)+3                           F0002670
       REM                    NOP    *+2         RETURN ADDRESS.        F0002680
       REM                    TRA    (REST)                             F0002690
       REM                                                              F0002700
       REM     CALL TO SET TAPE DENSITY                                 F0002710
       REM                                                              F0002720
       REM                    TSX    (STDN),4                           F0002730
       REM                    ***    TAPNO                              F0002740
       REM                                                              F0002750
       REM                             *** IS PZE FOR HIGH DENSITY.     F0002760
       REM                             *** IS MZE FOR LOW DENSITY.      F0002770
       REM                                                              F0002780
       REM     IOCOM,T1    ORIGIN OF LIST OF NO MORE THAN 5 I/O COMMANDSF0002790
       REM                    COMMANDS TO TRANSMIT EXACTLY ONE RECORD   F0002800
       REM                                                              F0002810
       REM     SKLST,T1       LOCATION OF CONTROL WORD                  F0002820
       REM                    PZE NRECS,,NFILS  (FORWARD)               F0002830
       REM                    MZE NRECS,,NFILS  (BACKWARD)              F0002840
       REM                    PZE ,,-1          (REWIND)                F0002850
       REM                    MZE ,,-1          (REWIND UNLOAD)         F0002860
       REM                                                              F0002870
       REM     SNLST,T1       ORIGIN OF LIST OF NO MORE THAN 8 PARAMS   F0002880
       REM                    OF THE FORM FWORD,,COUNT TO TAKE SELECTIVEF0002890
       REM                    DUMPS ON LOG TAPE 9, WHICH WILL BE        F0002900
       REM                    INTERPRETED BY DUMP RECORD ONTO LOG TAPE 6F0002910
       REM                                                              F0002920
       REM                                                              F0002930
       REM     ERROR,T1       LOCATION OF ONE BCD WORD DESCRIBING ERROR F0002940
       REM                                                              F0002950
       REM     LABEL,T2       LOCATION OF ONE BCD WORD LABEL            F0002960
       REM                    OMITTED IF RECORD IS UNLABELED (I/O TYPE) F0002970
       REM                                                              F0002980
       REM     TAPNO          LOGICAL TAPE NUMBER                       F0002990
       REM                                                              F0003000
       REM     PARNO          NUMBER OF PARAMETERS IN (SNAP) LIST       F0003010
       REM                                                              F0003020
       REM     ERRET,T3       LOCATION OF ERROR RETURN                  F0003030
       REM                                                              F0003040
       REM     FWORD,,COUNT   LOCATION OF FIRST WORD,,NUMBER OF WORDS   F0003050
       REM                    (LESS THAN 25) TO BE CONVERTED TO/FROM    F0003060
       REM                    ONE RECORD OF BCD/COL BINARY CARD IMAGES  F0003070
       REM                    OR (LESS THAN -1) TO BE WRITTEN/READ      F0003080
       REM                    DIRECTLY IN BINARY                        F0003090
       REM                                                              F0003100
       REM                                                              F0003110
       REM     FLAGS          FLAGS IN DECREMENT FIELD AS LISTED BELOW  F0003120
       REM                                                              F0003130
       REM     FLAGS IN DECREMENT FIELD   (K = 512)                     F0003140
       REM                                                              F0003150
       REM MNEMONIC EQUIVALENCES FOR I/O FLAGS                          F0003160
       REM                                                              F0003170
(DATA) SYN     32*K       BIT 3  TAPE DATA TRANSMIT                     F0003180
(SKIP) SYN     16*K           4  TAPE REPOSITION                        F0003190
(CHKU) REM     8*K            5  CHECK PRIOR ACTIVITY                   F0003200
(TPER) REM     4*K            6  ERROR ON PRIOR ACTIVITY                F0003210
 ONLNX SYN     2*K            7  ON-LINE DATA TRANSMIT (INTERNAL)       F0003220
       SYN     2*K+1                  PUNCH                             F0003230
       SYN     2*K+3                  PRINT                             F0003240
       REM     K              8  NOT USED                               F0003250
       REM     +256           9  NOT USED                               F0003260
       REM     +128           10 NOT USED                               F0003270
       REM     +64            11 NOT USED                               F0003280
       REM     +32            12 NOT USED                               F0003290
(WROW) REM     +16            13 TAPE WRITE OF ROW BINARY CARD          F0003300
(...C) SYN     +8             14 TAPE DATA TRANSMIT  DELAY AND CHECK    F0003310
       REM                       TAPE REPOSITION     DELAY AND CHECK    F0003320
(..E.) SYN     +4             15 TAPE DATA READ      PERMIT EOF         F0003330
       REM                                 WRITE     WRITE EOF          F0003340
(.D..) SYN     +2             16 TAPE DATA TRANSMIT  DECIMAL            F0003350
       REM                       TAPE REPOSITION     DECIMAL            F0003360
(W...) SYN     +1             17 TAPE DATA TRANSMIT  WRITE              F0003370
       REM                                                              F0003380
       REM                                                              F0003390
       REM                                                              F0003400
       REM     IF P1 AND/OR P2 IS ADDRS,T1,-1                           F0003410
       REM        P1 AND/OR P2 ARE FOUND (INDIRECTLY) IN LOC(ADDRS,T1)  F0003420
       REM        THIS INDIRECT FEATURE IS UNLIMITED IN DEPTH           F0003430
       REM     THIS INDIRECT FEATURE MAY NOT BE USED FOR ERRET,T3       F0003440
       REM                                                              F0003450
       REM                                                              F0003460
       EJECT                                                            F0003470
       REM                                                              F0003480
       REM LISTING CONVENTIONS                                          F0003490
       REM                                                              F0003500
     C EQU     1              SYMBOLIC TAG FOR HISTORIC CHAN. REFERENCE F0003510
     T EQU     2              SYMBOLIC TAG FOR CURRENT LOGICAL TAPENO   F0003520
     H EQU     2              SYMBOLIC TAG FOR HISTORIC LOGICAL TAPENO  F0003530
       REM                                                              F0003540
       REM                    USAGE OF ACTUAL TAGS INDICATES OTHER FUNCTF0003550
       REM                                                              F0003560
       REM     THE PUNCTUATION ''..'' IS AN INTERROGATION POINT         F0003570
       REM                                                              F0003580
 QZE   OPSYN   PZE            PSEUDO-OP WHICH MAY BE PZE OR MZE         F0003590
       REM                                                              F0003600
 LODPT BOOL    1              BEGINNING OF TAPE MNEMONIC.               F0003610
 EOFIL BOOL    4              END OF FILE MNEMONIC.                     F0003620
 REDUN BOOL    10             REDUNDANCY MNEMONIC.                      F0003630
 WMODE BOOL    100            WRONG MODE READ MNEMONIC.                 F0003640
 EOTAP BOOL    2              END OF TAPE MNEMONIC                      F0003650
BOFBIT BOOL    200            BEGINNING OF FILE MNEMONIC               $F0003651
       EJECT                                                            F0003660
       REM MNEMONIC EQUIVALENCES FOR NON-DATA SELECT CALLS              F0003670
       REM                                                              F0003680
 .RDC. EQU     0              RESET DATA CHANNEL (NOP)                  F0003690
 .SDL. EQU     1              SET DENSITY LOW                           F0003700
 .SDH. EQU     2              SET DENSITY HIGH                          F0003710
 .REW. EQU     3              REWIND                                    F0003720
 .RUN. EQU     4              REWIND AND UNLOAD                         F0003730
 .BSR. EQU     5              BACKSPACE RECORD                          F0003740
 .BSF. EQU     6              BACKSPACE FILE                            F0003750
 .WEF. EQU     7              WRITE END OF FILE                         F0003760
       REM                                                              F0003770
       REM                                                              F0003780
       REM MNEMONIC EQUIVALENCES FOR SPR EXIT HUBS                      F0003790
       REM                                                              F0003800
 EJECT EQU     1*512          SPR EXIT FOR PAGE EJECT                   F0003810
 DBLSP EQU     4*512          SPR EXIT FOR DOUBLE SPACE                 F0003820
 SUPRS EQU     9*512          SPR EXIT FOR SPACE SUPPRESS               F0003830
 CLOCK EQU     10*512         SPR EXIT FOR PRINTING CLOCK               F0003840
       REM                                                              F0003850
       TTL     INITIALIZATION OF IOP                                    F0003860
       REM INITIALIZATION OF IOP VIA SYSUN1 AND SYSUAV TABLES           F0003870
       REM                                                              F0003880
       REM                                                              F0003890
       ORG     BOTIOP-300-15                                           $F0003900
       BCI     1,FORTRAN      SYSTEM $EXECUTE NAME, N IGNORED.          F0003910
       REM                                                              F0003920
       ORG     SYSTRA                                                   F0003930
       TRA     INITT          GO INITIALIZE IOPX.                       F0003940
       REM                                                              F0003950
       ORG     BOTIOP-300-14                                           $F0003960
       REM                                                              F0003970
 INITT CAL     BOTTOM-12      IS THIS OLD HAT..                         F0003980
       ERA     WEMES          .                                         F0003990
       TZE     INITA          YES.                                      F0004000
       AXT     INITT-SYSORG-1,1 NO, BRAINWASH                          $F0004010
       STZ     INITT-1,1                                               $F0004020
       TIX     *-1,1,1        .                                         F0004030
       CAL     SYSCUR         $EXECUTE WHAT                            $F0004031
       ERA     FAPCD                                                   $F0004032
       TNZ     *+3            IS IT IBSFAP                             $F0004033
       TRA     FCOUNT        YES                                    (22)F0004034
       ORS*    (FGBX)         IN (FGBX)                                $F0004035
       CLA     INITT-1        NO - SET FORTRA IN SYSCUR                $F0004036
       STO     SYSCUR                                                  $F0004037
       CAL     WEMES          SET BCD MESSAGE FOR FUTURE INTERROGATION. F0004040
       TRA     INITS                                                   $F0004050
 INITA LXA     SYSPOS,1       WHICH LIBRARY TAPE IS IT                 $F0004060
       TXI     *+1,1,SYSLB1-1    COMPUTE SYSUNI ENTRY                  $F0004070
       SXA     TAPNO-1,1      INITIALIZE LOGICAL TAPE 1                $F0004080
       CAL     DISKF          PREPARE TO SET DISK BIT                  $F0004090
       SXA     *+1,1          SET SYSUNI LOCATION                      $F0004100
       LDI*    **             GET UCB WORD ONE                         $F0004101
       LNT     020000         IS THIS 7909 CHANNEL                     $F0004110
       ALS     11             NO, LEAVE FLAGBOX ALONE                  $F0004120
       ORS*    (FGBX)         SET FLAGBOX                              $F0004130
       LXD     TAPNO,1        NUMBER OF LOGICAL TAPES                  $F0004140
       SXD     TPNRT,1        TO INITIALIZATION TAPE COUNT             $F0004150
       LNT     020000         IS SYSTEM ON DISK..                       F0004160
       TRA     INIT0-2        NO, INITIALIZE TAPES                     $F0004170
       CAL     OVLY1          YES, OVERLAY NECESSARY INSTRUCTIONS.      F0004180
       SLW     SECL0                                                    F0004190
       CAL     OVLY2                                                    F0004200
       SLW     MECL0                                                    F0004210
       CAL     OVLY3                                                    F0004220
       SLW     MECL0+1        FOR DISK ENTRY TO SER/MER.                F0004230
       TRA     INIT0          INITIALIZE REMAINING TAPES               $F0004231
       REM                                                             $F0004240
       DUP     1,6            NOT EXECUTED                             $F0004250
       PZE                                                             $F0004251
       LDQ     DIAG6+1        SYSTEM ON TAPE, DO NOT                   $F0004257
       SLQ     DISKT          GO TO SYSLDR FOR LIBRARY                 $F0004260
 INIT0 NZT     TAPNO,1        DOES INSTALLATION WANT                    F0004270
       TIX     *-1,1,1        THIS LOGICAL TAPE..                       F0004280
       LDI     TAPNO,1        IS THIS TAPE TO BE FOUND                  F0004290
       LFT     377777         IN SYSUAV CHAIN..                         F0004300
       TRA     SYSVL         *YES, FIND IT.                             F0004310
       CAL*    TAPNO,1        NO, FIND IN SYSUNI.                       F0004320
       PAI                    TEST SYSUNI ENTRY                        $F0004330
       RFT     077777         IS ADDRESS ZERO..                        $F0004331
       TRA     INIT1          NO                                       $F0004332
       TXH     *+2,1,7        YES, BUT IS IT LOGICAL TAPE 8..           F0004340
       TRA     UNAVL         *NO, ADD IT TO THE LIST.                   F0004350
 INIT1 STA     TAPNO,1        NON-ZERO, IF UNIT EXISTS.                 F0004360
       ACL     L(03)          SAVE LOGICAL TAPE NUMBER IN UCB WORD 4   $F0004370
       STA     *+1                                                      F0004380
       SXD     **,1                                                     F0004390
       TXH     INIT2,1,7      DO NOT SET DENSITY OF LOG TAPE 8-16       F0004400
       LDI*    TAPNO,1        IS THIS FUNCTION ON 7909 CHANNEL..        F0004410
       LFT     020000         .                                         F0004420
       TXH     SYSDK,1,1     *YES, QUIT (BUT LET SYSTEM BE ON DISK).    F0004430
       LXA     TAPNO,4        DOES INSTALLATION WISH                    F0004440
       TXH     INIT2,4,0      TAPE DENSITIES SET VIA SYSUNI..           F0004450
       AXT     .SDH.,4        YES, ASSURE CORRECT TAPE FUNCTION DENSITY F0004460
       PBT                    HIGH..                                    F0004470
       AXT     .SDL.,4        LOW                                       F0004480
       SXD     *+2,4          .                                         F0004490
       TSX     (NDATA,4       .                                         F0004500
       PZE     TAPNO,1,**     FORMAT = L(UCB),,SDNH/SDNL                F0004510
 INIT2 TIX     INIT0,1,1      CONTINUE DEFINITIONS FOR ALL UNITS.       F0004520
       LDI*    TAPNO-5        DO NOT ALLOW SYSCRD TO BE                 F0004530
       LFT     100            SYSIN1.                                   F0004540
       TRA     SYSCD         *GOOD GRIEF, IT IS.                        F0004550
       REM                                                              F0004560
       AXT     -3,1           DEFINE L(UCB) FOR                         F0004570
 INIT3 CLA*    TAPNO,1        READER/PRINTER/PUNCH                      F0004580
       STA     TAPNO,1        NON-ZERO, IF SYSUNI FUNCTION ASSIGNED.    F0004590
       TXI     *+1,1,1                                                  F0004600
       TXH     INIT3,1,1      CONTINUE DEFINITIONS FOR ON-LINE UNITS.   F0004610
       CAL*    TAPNO+2        PICK UP CHANNEL OF ON-LINE PUNCH          F0004620
       ANA     DCMSK          AND INITIALIZE CHANNEL INSTRUCTIONS.      F0004630
       ARS     18                                                       F0004640
       STA     PUNSL                                                    F0004650
       ARS     9                                                        F0004660
       PAC     ,1                                                       F0004670
       TXI     *+1,1,1                                                  F0004680
       LDQ*    (RCHXI                                                   F0004690
       SLQ     PNCH5                                                    F0004700
       CAL     QPNC3                                                    F0004710
       SLQ     QPNC3                                                    F0004720
       ORS     QPNC3                                                    F0004730
       CAL*    (RCHXI                                                   F0004740
       ORA     D(400                                                    F0004750
       XCL                                                              F0004760
       SLQ     PUNLL                                                    F0004770
       LDQ*    (TCOXI                                                   F0004780
       SLQ     PDELY                                                    F0004790
       REM                                                              F0004800
 INIT4 NZT     INITT          ANY UNAVAILABLE SYSUNI FUNCTIONS..        F0004810
       TRA     UNVLF          YES.                                      F0004820
       LXD     SYSLDR,2       SET UP DELAY LOOP FOR LOAD ROUTINE.       F0004830
       TXI     *+1,2,1        .                                         F0004840
       SXA     LOADD,2        .                                         F0004850
       AXT     0,0            (NOT USED)                            (33)F0004860
       REM    PREPARE FOR POSSIBLE SYSOU1/2 SWITCH                      F0004870
       CLA     SYSOU1         IS SYSOU1 IDENTICAL WITH SYSOU2..         F0004880
       ANA     ADMSK          .                                         F0004890
       TZE     INIT5         *SYSOU1 DOES NOT EXIST (HMMM...)           F0004900
       STA     ERASA          .                                         F0004910
       CLA     SYSOU2         .                                         F0004920
       ANA     ADMSK          .                                         F0004930
       TZE     INIT5         *WHO KNOWS, SYSOU2 DOES NOT EXIST.         F0004940
       ERA     ERASA          .                                         F0004950
       TZE     INIT5         *YES, RESIGN THYSELF.                      F0004960
       CAL     SYSOU2         NO, PREPARE FOR AUTOMATIC                 F0004970
       AXT     -1,4           SWITCH TO SYSOU2 IN CASE OF EOT, RTT.     F0004980
       SXD     IODGH,4        .                                         F0004990
       ZSD     IODGI+4        .                                         F0005000
       AXT     6,4            MOVE THE NEW SWITCH MESSAGE              $F0005010
       CAL     SYSO2+6,4                                               $F0005020
       SLW     IOSWT+6,4                                               $F0005030
       TIX     *-2,4,1        .                                         F0005040
 INIT5 AXT     LOAD1,4        SET TRANSFER POINT                        F0005050
       SXA     SYSTRA,4       FOR ALL SYSTEM RECORDS.                   F0005060
       TSX     (LOAD),4,1    *INITIALIZATION COMPLETED,             (29)F0005070
       BCI     1,9F0100       CALL IN TAPE POSITIONER               (29)F0005080
       DUP     1,6                                                  (29)F0005090
       PZE                    PATCH SPACE                           (29)F0005100
       REM                                                              F0005150
       EJECT                                                            F0005160
       REM                                                              F0005170
       REM                                                              F0005180
       REM ROUTINE TO ACCUMULATE UNAVAILABLE SYSUNI FUNCTIONS           F0005190
       REM                                                              F0005200
 UNAVL STZ     INITT          FLAG UNAVAILABLE SYSUN1 FUNCTIONS.        F0005210
       AXT     -8,4           (LIMITED TO FOUR)                         F0005220
       TXI     *+1,4,2        BUMP STRING POSITION                      F0005230
       SXA     *-2,4          AND SAVE FOR NEXT ENTRY.                  F0005240
       CAL     SYSFC,1        ENTER FUNCTION IN UNAVAILABLITY STRING.  $F0005250
       SLW     STRNG,4                                                 $F0005260
       TXL     UNVLF,4,0      EXCEED MAXIMUM MISSING LIST YET          $F0005270
       STZ     TAPNO,1        FLAG UNAVAILABLE.                         F0005280
       TRA     INIT2         *RETURN FOR REMAINING TAPES.               F0005290
       REM                                                              F0005300
       REM    ROUTINE TO REQUEST OPERATOR CLARIFICATION OF SYSUNI       F0005310
       REM                                                              F0005320
 UNVLF TSX    (PROUT,4        PRINT ON-LINE REQUEST FOR                 F0005330
       PZE     1                                                        F0005340
       PZE     STRNG,,10                                                F0005350
       TRA     INTRP         *FORCE INTERRUPT OF SYSTEM.                F0005360
       REM                                                              F0005370
       TITLE                                                            F0005380
 STRNG BCI     8,                                                       F0005390
       BCI     2, UNAVAILABLE.                                          F0005400
       REM                                                              F0005410
       REM                                                              F0005420
       REM ROUTINE TO LOCATE REQUIRED LOGICAL TAPE IN SYSUAV CHAINS     F0005430
 SYSVL PIA                    COMPUTE CHANNEL AND RELATIVE              F0005440
       ANA     DCMSK          TAPE NUMBER FOR THIS SYSUAV TAPE.         F0005450
       ARS     18                                                       F0005460
       STA     SYSV2          .                                         F0005470
       RIL     777777         .                                         F0005480
       PIA                    .                                         F0005490
       ALS     3              .                                         F0005500
       STD     SYSV1          .                                         F0005510
       CAL     SYSUAV         LOCATE THE BEGINNING OF THE               F0005520
       PAC     ,2             SYSUAV AVAILABILITY CHAIN.                F0005530
 SYSV1 TIX     *+1,2,**       BUMP TO REQUIRED CHANNEL POINTER.         F0005540
       CLA     0,2            .                                         F0005550
       TZE     SYSV3         *NOTHING AVAILABLE ON THIS CHANNEL.        F0005560
 SYSV2 AXT     **,4           BUMP TO PROPER TAPE.                      F0005570
       PAC     ,2             .                                         F0005580
       CLA     0,2            .                                         F0005590
       TXL     SYSV3,2,0      IS THIS REALLY A TAPE IN CHAIN..          F0005600
       TIX     *-3,4,1        YES, CONTINUE ON DOWN THE CHAIN.          F0005610
       LDI     0,2            CHECK AVAILABILITY BIT.                   F0005620
       LNT     600000         IS UNIT DETACHED FROM CHANNEL            $F0005630
       TRA     *+2            NO, MAYBE WE CAN USE IT                  $F0005640
       TRA     SYSV3          YES, FORGET ABOUT IT                     $F0005650
       LFT     40000          IS UNIT RESERVED                         $F0005660
       TRA     SYSV4          YES, MENTION IT                          $F0005670
       LFT     20000          IS UNIT ON 7909 CHANNEL                  $F0005680
       TRA     SYSV5          YES, MENTION IT                          $F0005690
       RIL     600000         MAKE AVAILABLE AND RESET                 $F0005700
       STI     0,2            THE NO-REPOSITIONING FLAG                $F0005710
       CAL     MZERO          INDICATE WE DISTURBED                    $F0005720
       ORS     SYSJOB         THE AVAILABILITY CHAIN                   $F0005730
       PXA     ,2             COMPUTE UCB LOCATION FOR                 $F0005740
       SBM     *-1            STA IN TAPNO                             $F0005750
       TRA     *+2                                                      F0005760
 SYSV3 ZAC                    DELETE UCB REFERENCE.                     F0005770
       STZ     TAPNO,1        CLEANSE IOPU ENTRY.                       F0005780
       TRA     INIT1         *ENTER THIS TAPE L(UCB) IN IOPU (MAY BE 0) F0005790
 SYSV4 CAL     SYSVR          SET RESERVE UNIT MESSAGE.                 F0005800
       TRA     *+2                                                      F0005810
 SYSV5 CAL     SYSVD          SET DISK UNIT TROUBLE MESSAGE.            F0005820
       SLW     SYSVM+4        .                                         F0005830
       PXA     ,1             CONVERT LOGICAL TAPE NUMBER.              F0005840
       TSX     (DECVA,4       .                                         F0005850
       STQ     SYSVM+2                                                  F0005860
       TSX     (PROUT,4       NOTIFY OPERATOR IN PASSING.               F0005870
       PZE     1              .                                         F0005880
       PZE     SYSVM,,8       .                                         F0005890
       TRA     SYSV3         *RETURN.                                   F0005900
       REM                                                              F0005910
       REM    REFUSE CARD READER INPUT                                  F0005920
 SYSCD TSX     (PROUT,4       LET OPERATOR KNOW HOW WE FEEL ABOUT IT.   F0005930
       PZE     2              .                                         F0005940
       MZE     SYSDM,,4                                                 F0005950
       PZE     CARDM,,3                                                $F0005960
       TRA     INTRP         *FORCE INTERRUPT OF SYSTEM.                F0005970
       REM                                                              F0005980
       REM    REFUSE DISK ASSIGNMENT                                    F0005990
 SYSDK TSX     (PROUT,4      *NOTIFY OPERATOR OF ILLEGAL SYSUNI DISK.   F0006000
       PZE     3              .                                         F0006010
       MZE     SYSDM,,4       .                                         F0006020
       MZE     SYSFC,1,1      .                                         F0006030
       PZE     SYSDM+4,,5                                              $F0006040
       REM                                                              F0006050
       REM INTERRUPT ROUTINE                                            F0006060
 INTRP TSX     (PROUT,4       READY SENSE SWITCH 1 AND SYSCRD...        F0006070
       PZE     1              .                                         F0006080
       PZE     SYSSW,,12                                               $F0006090
       TSX     (PAUSE,4       ...THAT REFRESHES.                        F0006100
       STZ     BOTTOM-12      WE'RE OUT.                                F0006110
       CLA     IBSNXT         TELL IBSYS TO SKIP TO                    $F0006120
       STO     SYSGET         NEXT $JOB                                $F0006130
       TRA     SYSRET         AND GIVE UP                              $F0006140
 SYSVD BCI     1,DISK         ILLEGAL DISK REFERENCE...                 F0006150
 SYSVM BCI     8,LOGICAL TAPE NNNNN  IS XXXXX  - CAN'T BE USED.         F0006160
       REM                                                              F0006170
 WEMES BCI     1,WEREIN       FLAG TO INDICATE THAT THIS ENTRY TO       F0006180
       REM                    INITT IS NOT DUE TO $EXECUTE CARD.        F0006190
 DISKF MZE     ,,64           MONITOR AND DISK FLAGS FOR FLAGBX.        F0006200
       REM                                                              F0006210
 SYSDM BCI     4, FORTRAN CANNOT ACCEPT                                 F0006220
       BCI     5, FUNCTION ON 7909 CHANNEL.                            $F0006230
 CARDM BCI     3, INPUT ON SYSCRD.                                     $F0006240
 SYSO2 BCI     6, $SWITCH    SYSOU1,SYSOU2 SIMULATED.                  $F0006250
 SYSSW BCI     6,START WILL SKIP TO $JOB.  SW1 MAY BE                  $F0006260
       BCI     6, USED WITH $RESTART,ETC., IN SYSCRD.                  $F0006261
 SYSVR BCI     1,RESRVD       UNIT IS RESERVED                         $F0006262
 OVLY1 CAL     LSECL+1                                                  F0006270
 OVLY2 CAL     LSECL+2                                                  F0006280
 OVLY3 SLW     LSECL+1                                                  F0006290
 L(03) PZE     3                                                        F0006300
 D(400 PZE     ,,256          MASK FOR LCHX FOR ON-LINE PUNCH.          F0006310
FAPCD  BCI     1,IBSFAP                                                $F0006311
FAPBT  OCT     4                                                       $F0006312
       PZE                    PATCH SPACE                           (29)F0006320
       PZE                    PATCH SPACE                           (29)F0006321
       PZE                    PATCH SPACE                           (29)F0006322
IBSNXT BCI     1,IBSNXT       TO SKIP TO $JOB                          $F0006323
 INITS SLW     BOTTOM-12                                               $F0006324
       LDQ     SYSJOB                                                  $F0006325
       TQP     INITA          IS SYSJOB PLUS                           $F0006326
       CAL     L(08)          NO,SET BIT IN FLAGBOX                    $F0006327
       ORS*    (FGBX)         FOR SYSUAV RESTORATION                   $F0006328
       TRA     INITA                                                   $F0006329
 MZERO MZE     0              USED TO SET SYSJOB                       $F0006330
FCOUNT LDC     SYSLDR,4       -L(UCB) FOR LIBRARY UNIT              (29)F0006340
       CAL     2,4            PICK UP UCB WORD 3, THEN ADJUST RECORD(29)F0006341
       ACL     TGADD          AND FILE COUNT,AS IBSFAP LOADS FORTRA (29)F0006342
       LDI     0,4            DO NOT DO SO                          (29)F0006343
       LNT     020100         IF ON DISK                            (29)F0006344
       SLW     2,4                                                  (29)F0006345
       CLA     FAPBT         SET BIT 33 OF FLAGBOX                  (22)F0006346
       TRA     INITA-5                                              (22)F0006347
       REM                                                              F0006350
 IPTCH SYN     *              PATCH SPACE FROM HERE TO (LOAD)          $F0006360
       TTL     TRANSFER VECTOR                                          F0006370
       REM     COMMON TRANSFER VECTOR AND TAPE I/O ROUTINES             F0006380
       REM                                                              F0006390
       REM                                                              F0006400
       REM     ENTRY POINTS                                             F0006410
       REM                                                              F0006420
       ORG     BOTIOP                                                   F0006430
(LOAD) TRA     LOAD0          CALLER TO READ SYSTEM TAPE.               F0006440
       PZE     DGLD3          LOCATION OF FORTRAN RECORD NUMBER FOR DIAGF0006450
       NOP                                                              F0006460
       REM                                                              F0006470
(DIAG) STL     IOSVX          SET RETURN FROM CHANNEL SAVER ROUTINE     F0006480
       NOP     DIAG0                                                    F0006490
       TRA     IOSAV         *SAVE ALL REGISTERS                        F0006500
       REM                                                              F0006510
(TAPE) STL     IOSVX          SET RETURN FROM CHANNEL SAVER ROUTINE     F0006520
       NOP     TAPS0                                                    F0006530
       TRA     IOSAV         *SAVE ALL REGISTERS                        F0006540
       REM                                                              F0006550
(PRNT) STL     IOSVX          SET RETURN FROM CHANNEL SAVER ROUTINE     F0006560
       NOP     PRNT0                                                    F0006570
       TRA     IOSAV         *SAVE ALL REGISTERS                        F0006580
       REM                                                              F0006590
(PNCH) STL     IOSVX          SET RETURN FROM CHANNEL SAVER ROUTINE     F0006600
       NOP     PNCH0                                                    F0006610
       TRA     IOSAV         *SAVE ALL REGISTERS                        F0006620
       REM                                                              F0006630
(STAT) AXT     TERST,1        LOAD ORIGIN OF STATISTICS TABLE AND       F0006640
       AXT     TAPNO,2        UNIT TABLE.                               F0006650
       TRA     1,4                                                      F0006660
       REM                                                              F0006670
(REST) STL     DGLD2          RESTORE CONSOLE AND REGISTERS             F0006680
       NOP     *+2            FROM DIAGNOSTIC SAVE ROUTINE.             F0006690
       TRA     DGLD0         *RESTORE.                                  F0006700
       TRA*    **            *RETURN TO CALLER.                         F0006710
       REM                                                              F0006720
(STDN) SXA     STDNX,4        SAVE LINKAGE.                             F0006730
       CLA     1,4            HIGH OR LOW DENSITY..                     F0006740
       AXT     .SDL.,4                                                  F0006750
       TMI     *+2            MINUS 1,4 SETS DENSITY LOW.               F0006760
       AXT     .SDH.,4                                                  F0006770
       SXD     SETDN,4        SAVE DENSITY SPECIFICATION.               F0006780
       PAC     ,4             COMPUTE L(UCW) POINTER                    F0006790
       TIX     *+1,4,-TAPNO                                             F0006800
       SXA     SETDN,4                                                  F0006810
       TSX    (NDATA,4       *NON-DATA SELECT TO SET DENSITY            F0006820
 SETDN PZE     **,,**         FORMAT= PZE L(UCW),,SDNH/SDNL             F0006830
 STDNX AXT     **,4           RETURN                                    F0006840
       TRA     2,4           *TO CALLER.                                F0006850
       REM                                                              F0006860
(SECL) TTR     SECL0          CALLER TO SOURCE ERROR RECORD.            F0006870
       REM                                                              F0006880
(MECL) TTR     MECL0          CALLER TO MACHINE ERROR RECORD.           F0006890
       REM                                                              F0006900
(DGLD) TTR     DGLDH          RESTORE MEMORY,REGISTERS,CONSOLE,HALT (31)F0006910
       PZE                    SPACE FOR AN                              F0006920
       PZE                    ADDITIONAL                                F0006930
       PZE                    ENTRY POINT.                              F0006940
       TTL     MONITOR AND FLAG CELLS                                   F0006950
       REM     PARAMETERS VARIABLE AT EDIT TIME                         F0006960
(PGCT) PZE     0,,56          MAXIMUM NUMBER OF LINES PER PAGE          F0006970
       REM                    (EXCLUDING HEADING)(NON-ZERO ADDRESS RESTRF0006980
(LIBT) PZE     ,,LIBTAP       LIBRARY ON LOGICAL TAPE 1 (SYSLB1)        F0006990
       OCT     ,,,,           SPACE FOR ADDITIONAL PARAMETERS           F0007000
       EJECT                                                            F0007010
       REM     MONITOR COMMUNICATIONS REGION                            F0007020
       REM                                                              F0007030
(FGBX) PZE     BOTTOM-4       LOCATION OF MONITOR FLAGS                 F0007040
       REM                                                              F0007050
       REM                    400000000000  MONITOR CONTROL             F0007060
       REM                    010000000000  JOB NOT PRECEDED BY EOF (26)F0007065
       REM                    000100000000  SYSLB1 IS ON DISK           F0007070
       REM                    000002000000  CHAIN JOB                   F0007080
       REM                    000001000000  CHAIN JOB-BSS CNTRL IN CORESF0007090
       REM                    000000400000  DEBUG FOR THIS JOB          F0007100
       REM                    000000200000  BINARY INPT EXISTS ON MBNITPF0007110
       REM                    000000100000  XEQ FOLLOWS THIS COMPILE    F0007120
       REM                    000000000200  XEQ FOLLOWS THIS JOB        F0007130
       REM                    000000000010 LEAVE SYSJOB MINUS          $F0007138
       REM                    000000000004 MODE IS IBSFAP              $F0007139
       REM                    000000000002  SNAP-SHOTS EXIST            F0007140
       REM                    000000000001  TAPE STATISTICS OUTPUT      F0007150
       REM                             SYSTEM TAPE SPACERS             $F0007160
       REM                    000000000000  SPACE SYSTEM TO SIGN-ON    $F0007161
       REM                    000010000000  SPACE SYSTEM TO SOURCE ERR $F0007162
       REM                    000020000000  SPACE SYSTEM TO MACH. ERR. $F0007163
       REM                    000040000000  SPACE SYSTEM TO DUMP       $F0007164
       REM                                                             $F0007165
       REM                                                              F0007170
(LNCT) PZE     BOTTOM-3       LOCATION OF CUMULATIVE LINES OUTPUT.      F0007180
(DATE) PZE                   FORTRAN DATE CELL                         $F0007190
(SNCT) PZE                    COUNT OF SNAP-SHOTS ON LOG TAPE 9         F0007200
       REM                                                              F0007210
(MSLN) ***     **             FLAG FOR ENTRY INTO MACHINE ERROR RECORD  F0007220
       REM                    OR SOURCE ERROR RECORD.                   F0007230
       REM     1              FROM FAP                                  F0007240
       REM     2              FROM MONITOR                              F0007250
       REM     4              FROM SECTIONS 1 THROUGH 6                 F0007260
       REM                    AND THE GENERAL DIAGNOSTIC                F0007270
       REM                                                              F0007280
(ENDS) PZE                    END CARD SETTINGS 1 THROUGH 15.           F0007290
(LODR) TXI     **,,**        *ENTRY POINT,,FORTRAN RECORD RECORD NUMBER F0007300
(LBLD) PZE     **             LOAD POINT FOR DISK LIBRARY              $F0007310
       REM                    LOADED WITH SYSLDR                       $F0007311
       REM                    SPACE FOR                                $F0007319
       PZE                    ADDITIONAL                                F0007320
       PZE                    COMMUNICATIONS.                           F0007330
       REM                                                              F0007340
       REM     TABLE OF CHANNEL REGISTERS AFTER SUCCESSFUL READ         F0007350
       REM                                                              F0007360
       REM     RELEVANT INFORMATION IS CHANNEL ADDRESS REGISTER (21-35) F0007370
       REM     CHANNEL ADDRESS REGISTER IS LOCATION OF LAST WORD READ+1 F0007380
(SCHU) PZE     **             CHANNEL STATUS FLAGS                      F0007390
       DUP     1,NTAPE                                                  F0007400
       PZE     **,,**         LOGICAL TAPES 1 THRU NTAPE                F0007410
       TTL     0                                                        F0007420
       REM *************************************************************F0007430
       REM ROUTINE TO SAVE CONSOLE AND REGISTERS                        F0007440
       REM                                                              F0007450
 IOSAV SLW     IOSVR+3        SAVE ALL REGISTERS                        F0007460
       ARS     2                                                        F0007470
       STO     IOSVR+2                                                  F0007480
       STQ     IOSVR+1                                                  F0007490
       STI     IOSVR                                                    F0007500
       LDI     INDIC          LOAD CONSOLE INDICATORS                   F0007510
       TOV     *+2            IS AC OVERFLOW ON ..                      F0007520
       RIR     1000           NO, TURN BIT OFF,                         F0007530
       STI     IOSVR+4        SAVE FLAG.                                F0007540
       SXA     CURTP+5,4      SET CALLER LOCATION IN LABEL.             F0007550
       SXA     IOSEX+2,4                                                F0007560
       SXA     IOSEX+1,2                                                F0007570
       SXA     IOSEX,1                                                  F0007580
 IOSVX TRA*    **            *RETURN VIA ENTRY POINT.                   F0007590
       REM                                                              F0007600
 INDIC OCT     1400           PRESET CONSOLE INDICATORS(OVFLO LIGHTS)   F0007610
       REM         DEFINITIONS OF INDICATOR BITS                        F0007620
       REM                                                              F0007630
       REM         BITS S,1-25 NOT USED                                 F0007640
       REM         BIT 26 ON  AC OVERFLOW INDICATOR ON                  F0007650
       REM         BIT 27 ON  MQ OVERFLOW INDICATOR ON                  F0007660
       REM         BIT 28 ON  DIVIDE CHECK INDICATOR ON                 F0007670
       REM         BIT 29 ON  SENSE LIGHT 4 OFF                         F0007680
       REM         BIT 30 ON  SENSE LIGHT 3 OFF                         F0007690
       REM         BIT 31 ON  SENSE LIGHT 2 OFF                         F0007700
       REM         BIT 32 ON  SENSE LIGHT 1 OFF                         F0007710
       REM         BIT 33 ON  TURNS OFF ALL SENSE LIGHTS                F0007720
       REM         BIT 34     NOT USED                                  F0007730
       REM         BIT 35     NOT USED                                  F0007740
       REM                                                              F0007750
       REM                                                              F0007760
 IOSVR PZE     **             SAVE INDICATORS                           F0007770
       PZE     **             SAVE MQ                                   F0007780
       PZE     **             SAVE LOGICAL ACCUMULATOR                  F0007790
       PZE     **             SAVE ALGEBRAIC ACCUMULATOR                F0007800
       PZE     **             SAVE TRIGGER FLAGS                        F0007810
       REM ROUTINE TO RESTORE CONSOLE AND REGISTERS                     F0007820
       REM                                                              F0007830
       REM                                                              F0007840
 IOSEX AXT     **,1           RELOAD REGISTERS                          F0007850
       AXT     **,2                                                     F0007860
       AXT     **,4                                                     F0007870
       LDI     IOSVR+4        LOAD TRIGGER FLAGS                        F0007880
       CAL     IOSEX          PREPARE TO TURN AC OVERFLOW ON            F0007890
       RFT     1000           WAS AC OVERFLOW ON.                       F0007900
       ALS     4              YES, TURN IT BACK ON                      F0007910
       CLA     IOSVR+2        RESTORE ALGEBRAIC AND LOGICAL ACCUMULATOR F0007920
       ALS     2                                                        F0007930
       ORA     IOSVR+3                                                  F0007940
       RNT     1000           WAS AC OVERFLOW ON.                       F0007950
       TOV     *+1            NO, TURN IT BACK OFF                      F0007960
       LDQ     IOSVR+1        RELOAD MQ                                 F0007970
       LDI     IOSVR          RELOAD SI                                 F0007980
 IORLX TRA*    **            *RETURN TO USER.                           F0007990
       REM *************************************************************F0008000
       EJECT                                                            F0008010
       REM    SYSTEM TAPE RECORD TO CORE STORAGE (1 TO CS)              F0008020
       REM                                                              F0008030
 LOAD0 SXA     LOADX,4        SAVE POSSIBLE LINKAGE.                    F0008040
       LDQ     0,4            PREPARE FOR POSSIBLE DISK LOADING.        F0008050
       SLQ     LOADS          (SET TO NOP IF SYSTEM IS ON TAPE)         F0008060
       CAL     1,4            PICK UP RECORD NAME TO BE LOADED          F0008070
       SLW     LOADS+1        .                                         F0008080
 LOADD ZET     **             DELAY FOR POSSIBLE TRAPPING ON SYSLB1.    F0008090
       TRA     *-1            .                                         F0008100
 LOADS TSX     SYSLDR,4       (SET TO TSX SYSLDR,4,1 FOR DISK USE)      F0008110
       BCI     1,XXXXXX       BCD RECORD NAME TO BE SEARCHED, IF ON DISKF0008120
       REM                                                              F0008130
       REM    SYSTRA RETURNS CONTROL TO THIS POINT                      F0008140
 LOAD1 SYN     *                                                        F0008150
       LXD     (LODR),4       .                                         F0008160
       SXD     CURTP+5,4      SAVE CURRENT RECNO IN LABEL.              F0008170
 LOADX AXT     **,4           RESTORE POSSIBLE LINKAGE.                 F0008180
       CAL     POINT-SYSTAP   UPDATE SYSTEM TAPE POSITION POINTER.      F0008190
       ADD     L(01)          .                                         F0008200
       STO     POINT-SYSTAP   .                                         F0008210
       NZT     DIAGY          IS THIS A LOAD OF GENERAL DIAGNOSTIC..    F0008220
       TRA     *+7           NO                                         F0008230
       CLA     DIAGY          YES, PICK UP PARAMETERS.                  F0008240
       LDQ     DIAGY+1        .                                         F0008250
       LDI     DIAGY+2        .                                         F0008260
       LXA     DGSV6-2,1      RESTORE INDEX REGISTERS.                  F0008270
       LXA     DGSV6-1,2      .                                         F0008280
       LXA     DGSV6,4        .                                         F0008290
       STZ     DIAGY          RESET SWITCH.                             F0008300
       TRA     (LODR)        *TRANSFER INTO NEW RECORD.                 F0008310
       REM                                                              F0008320
       EJECT                                                            F0008330
       REM    GENERAL DIAGNOSTIC CALLER                                 F0008340
       REM                                                              F0008350
DIAG0  CLA     0,4            GET LOCATION OF TSX TO DIAGNOSTIC         F0008360
       STA     *+1            SET ADDRESS TO GET LOCATION OF TXI (DIAG).F0008370
       LDI     **             LOAD TXI INSTRUCTION.                     F0008380
       LFT     77777          IS THIS A CALL TO GENERAL DIAGNOSTIC.     F0008390
       TRA     DIAG1          YES, GO TO CALLER.                        F0008400
       CLA     DIAG9          GET PRINT PARAMETERS.                     F0008410
       TRA     IODG0          GO TO ON-LINE DIAGNOSTIC.                 F0008420
       REM                                                              F0008430
DIAG1  STI     DIAGY          SAVE FIRST WORD OF CALLING SEQUENCE (TXI).F0008440
       ADD     L(01)          INCREMENT TO GET SECOND WORD, IF ANY.     F0008450
       STA     *+3                                                      F0008460
       ADD     L(01)          INCREMENT TO GET THIRD WORD, IF ANY.      F0008470
       STA     *+2                                                      F0008480
       LDQ     **             GET SECOND AND                            F0008490
       CLA     **             THIRD WORD OF CALLING SEQUENCE.           F0008500
       STQ     DIAGY+1                                                  F0008510
       STO     DIAGY+2                                                  F0008520
       STL     DGSV4          SET RETURN FROM SAVER ROUTINE.            F0008530
       NOP     *+2                                                      F0008540
       TRA     DGSVA          DUMP MEMORY FOR DIAGNOSTIC                F0008550
       LDI*    (FGBX)         CHECK FOR DISK SYSTEM.                    F0008560
       LFT     100            .                                         F0008570
       TRA     DIAG6          SYSTEM IS IN THE DISK FILE.               F0008580
       CLA     POINT-1        GET CURRENT POSITION OF SYSTEM TAPE.      F0008590
       STD     *+2            SAVE CURRENT FILE POSITION.               F0008600
       AXT     4,4            COMPUTE FILE POSITION OF G.DIAG.          F0008610
       TIX     *+1,4,**       .                                         F0008620
       SXD     ERASD,4        .                                         F0008630
       TSX    (TAPE),4        SPACE TO THE GENERAL DIAGNOSTIC FILE.     F0008640
       PZE     ERASD,,(SKBP)  .                                         F0008650
       PZE     ,,SYSTAP       .                                         F0008660
DIAG6  STL     DGLD2          SET RETURN FROM RELOADING ROUTINE.        F0008670
       NOP     *+2                                                      F0008680
       TRA     DGLD0                                                    F0008690
       TSX     (LOAD),4,1    *ENTER GENERAL DIAGNOSTIC.                 F0008700
       BCI     1,9D0000                                                 F0008710
       REM                                                              F0008720
DIAGY  PZE     **,,**         CELL FOR SAVING TXI (DIAG),,-N            F0008730
       PZE     **             CELL FOR SAVING SECOND WORD OF CALLER.    F0008740
       PZE     **             CELL FOR SAVING THIRD WORD OF CALLER.     F0008750
       REM                                                              F0008760
DIAG9  PZE     *+1,,ERAS1                                               F0008770
       PZE     *+1,,11                                                  F0008780
       TITLE                                                            F0008790
       BCI     9, *** PROBABLE MACHINE ERROR.  PLEASE REFER TO SYSTEM L F0008800
       BCI     2,ISTING. ***                                            F0008810
       TTL     GENERAL I/O ROUTINES                                     F0008820
       REM                                                              F0008830
       REM                                                              F0008840
       REM                                                              F0008850
       REM INITIALIZE CURRENT OFF-LINE ACTIVITY                         F0008860
       REM                                                              F0008870
       REM                                                              F0008880
       REM                                                              F0008890
 TAPS0 LDI     2,4            LOAD  LABEL-ADDRESS,T2,TAPENO.            F0008900
       LNT     77777          IS THIS INDIRECT..                        F0008910
       TRA     *+4            NO.                                       F0008920
       STI     ERAS2          YES, INITIALIZE LOCATION OF PARAMETER     F0008930
       LDI*    ERAS2          GET NEW LABEL ADDRESS, T2, TAPNO.         F0008940
       TRA     TAPS0+1        AND CHECK                                 F0008950
       PIA                    PLACE SECOND PARAMETER IN AC.             F0008960
       LDI     1,4            LOAD  INSTRUCTION,T1,FLAGS.               F0008970
       LNT     77777          IS THIS INDIRECT                          F0008980
       TRA     *+4            NO                                        F0008990
       STI     ERAS2          YES, INITIALIZE LOCATION OF PARAMETER     F0009000
       LDI*    ERAS2          LOAD NEW INSTRUCTION,T1,FLAGS             F0009010
       TRA     *-4            AND CHECK                                 F0009020
       LFT     75000          IS THIS ILLEGAL FLAG                      F0009030
       TRA     *+3            NO.                                       F0009040
       CLA     FLERM          YES, GET MESSAGE PARAMETERS.              F0009050
       TRA     IODG0         *GO TO ON-LINE DIAGNOSTIC.                 F0009060
       LDQ     L(00)          SET NO ERR-RETURN/LABEL FLAG PROVISIONALLYF0009070
       LNT     (CHKU)         IS THIS A CALL TO CHECK PRIOR ACTIVITY..  F0009080
       REM                    OR CHANGE UNIT AVAILABILITY..            $F0009081
       TRA     TAPS1          NO                                        F0009090
       PIA                    YES, COMPUTE EFFECTIVE TAPE NUMBER        F0009100
       STT     *+1                                                      F0009110
       SXA     ERASA,**                                                 F0009120
       SUB     ERASA                                                    F0009130
       PAX     ,T                                                       F0009140
       PIA                                                              F0009150
 TAPCK TRA     AVPCH         *TO SEE IF REALLY (CHKU) CALL             $F0009160
       STL     TAPRX          SET RETURN FOLLOWING CHECK OF PRIOR USE.  F0009170
       NOP     *+2            RETURN FROM CHANNEL CHECKER ROUTINE.      F0009180
       TRA     TAPER         *CHECK PRIOR ACTIVITY                      F0009190
       LDC     CURTP+2,T      LOAD (SCHU) INDEX  (LOGICAL TAPENO).      F0009200
       NZT     (SCHU),T       WAS AN EOF READ..                         F0009210
       STZ     (SCHU),T       YEAS, SET IT TO A READ AND CHECK FLAG.    F0009220
       TRA     CHKTO         *EXIT TO RESTORE ROUTINE.                  F0009230
       REM                                                              F0009240
       REM                                                              F0009250
 TAPS1 STP     CURTP+5        SAVE LABEL FLAG (FROM CALLER 2,4).        F0009260
       REM                    MINUS INDICATES NO CHECK ON LABEL         F0009270
       STT     ERASR          INITIALIZE LOCATION OF LABEL              F0009280
       STA     ERASR                                                    F0009290
       ZET     ERASR          IS A LABEL REQUIRED                       F0009300
       LDQ*    ERASR          YES, PICK UP LABEL                        F0009310
       STQ     CURTP+3        (ACTUAL LABEL OR ZERO FLAG)               F0009320
       STD     CURTP+2        SAVE LOGICAL TAPE NUMBER (OR PARNO)       F0009330
       PIA                    RECALL INSTRUCTION ADDRESS,T1             F0009340
       STT     *+1            COMPUTE EFFECTIVE INSTRUCTION ADDRESS     F0009350
       SXA     ERASA,**                                                 F0009360
       SBM     ERASA                                                    F0009370
       STA     SKIP0          SET LOCATION OF POSSIBLE SKIP PARAMETER.  F0009380
       ADD     L(05)                                                    F0009390
       STA     PATCH2+3           SET LOCATION OF END OF I/O LIST      $F0009400
       LDQ     3,4            LOAD POSSIBLE ERROR RETURN                F0009410
       STL     TAPRX          SET RETURN FOLLOWING CHECK OF PRIOR USE   F0009420
       NOP     TAPE0          TO TAPE DATA TRANSMIT ROUTINE             F0009430
       LFT     (SKIP)         IS THIS TAPE REPOSITION..                 F0009440
       STL     TAPRX          YES, RESET RETURN                         F0009450
       NOP     SKIP0          TO TAPE REPOSITION ROUTINE                F0009460
       TRA     TAPER         *CHECK PRIOR ACTIVITY                      F0009470
       REM                                                              F0009480
       EJECT                                                            F0009490
       REM ROUTINES TO SPACE RECORDS AND FILES                          F0009500
       REM                                                              F0009510
       REM                                                              F0009520
 SKIP0 CLA     **             PICK UP ACTUAL POSITIONING PARAMETER.     F0009530
       LDC     CURTP+2,4      LOAD LOGICAL TAPENO, COMPLEMENTED.        F0009540
       NZT     (SCHU),4       WAS EOF SENSED..                          F0009550
       STZ     (SCHU),4       YES, RESET POSSIBLE READ NOP.             F0009560
       STO     UNITT+3,C      SAVE PARAMETER IN CHANNEL DATA TABLE.     F0009570
       STA     ERASA          SAVE COUNT OF RECORDS TO BE SKIPPED.      F0009580
       STD     ERASD          SAVE COUNT OF FILES TO BE SKIPPED.        F0009590
       SXA     SKIP6,C        SAVE IR C.                                F0009600
       PDX     ,1             LOAD FILE COUNT.                          F0009610
       TPL     SKIPF         *SKIP IS SKIP FORWARD.                     F0009620
       REM                                                              F0009630
       TXL     SKIP1,1,-2     IS THIS SPECIAL REWIND AND UNLOAD..       F0009640
       AXT     .RUN.,4        YES,                                      F0009650
 REWD1 SXD     NDSEL,4        SET NON-DATA SELECT PARAMETER.            F0009660
       TSX     NONDT,4       *RUN TAPE FUNCTION SPECIFIED IN IR2.       F0009670
       CAL     INITL          RESET TAPE POSITION STATUS WORD           F0009680
       SLW     POINT,T        TO INITIAL POSITION.                      F0009690
       TRA     TAPEX         *EXIT TO CALLER, VIA TAPEX.                F0009700
 SKIP1 TXL     SKIP2,1,0      ANY FILES TO BE SKIPPED..                 F0009710
       TSX     (NDATA,4      *BACKSPACE NFILES.                         F0009720
       PZE     TAPNO,T,.BSF.                                            F0009730
       TIX     *-2,1,1                                                  F0009740
       REM                                                              F0009750
 SKIP2 LXA     ERASA,1        LOAD NUMBER OF RECORDS TO BE SKIPPED.     F0009760
       TXL     SKIPE,1,0      ANY RECORDS TO BE SKIPPED..               F0009770
       TSX     (NDATA,4      *BACKSPACE NRECORDS.                       F0009780
       PZE     TAPNO,T,.BSR.                                            F0009790
       TIX     *-2,1,1                                                  F0009800
 SKIPE NZT     ERASD          WERE ANY FILES SPACED..                   F0009810
       TRA     CMP01         *NO, COMPUTE NEW TAPE POSITION.            F0009820
       STZ     ERASA          YES, RESET RECORD COUNT                   F0009830
       ZET     CURTP+3        IS THERE A LABEL..                        F0009840
       TSX     FINDL,4       *YES, OBTAIN POSITION OF DATA.             F0009850
       TRA     CMP01         *NO LABEL, OR NOT FOUND.                   F0009860
       TRA     CMP02          CONTINUE BELOW.                           F0009870
 CMP01 CAL     POINT,T        PICK UP PREVIOUS TAPE POSITION.           F0009880
       SUB     ERASD          SUBTRACT NFILES BACKSPACED.               F0009890
       NZT     ERASD          WERE FILES SPACED                        $F0009891
       SUB     ERASA          NO.  SUB. NRECORDS BACKSPACED            $F0009892
       ZET     ERASD          YES.  MASK                               $F0009893
       ORA     ADMSK          FOR FILE SPACED                          $F0009900
 CMP02 SLW     POINT,T        SAVE NEW POSITION.                        F0009910
       LNT     (...C)         IS THIS DELAY AND CHECK IMMEDIATE..       F0009920
       TRA     TAPEX         *NO, RETURN TO CALLER VIA TAPEX.           F0009930
       STL     CHKIX          SPECIAL BTT TEST, CHECK UCB3.             F0009940
       NOP     TAPEX          EXIT TO CALLER VIA TAPEX AFTER            F0009950
       TRA     CHKIO          TESTING FOR BTT.                          F0009960
       SPACE   5                                                        F0009970
       REM FORWARD SPACE FILES AND/OR RECORDS                           F0009980
       SPACE   2                                                        F0009990
 SKIPF TXL     SKIP3,1,-2     IS THIS A REWIND SPECIAL..                F0010000
       CLA     TAPNO,T        YES, MAY THIS TAPE BE REWOUND..           F0010010
       TMI     RWERR         *NO, IT IS AN OUTPUT TAPE (LISTING).       F0010020
       AXT     .REW.,4        YES, SET NON-DATA SELECT PARAMETER        F0010030
       TRA     REWD1         *AND CONTINUE ABOVE.                       F0010040
       REM                                                              F0010050
 SKIP3 TXL     SKIP5,1,0      ANY FILES TO BE SKIPPED FORWARD..         F0010060
       TSX     IOPRQ,4       *SKIP FORWARD ONE FILE.                    F0010070
       PZE     SKIPR          .                                         F0010080
       TNX     SKIP4,1,1      ANY MORE FILES TO SKIP..                  F0010090
       SXA     SKP01,1        SAVE LOOPING INDEX.                       F0010100
       LXA     SKIP6,C        RESTORE UNITT POINTER.                    F0010110
       STL     CHSKX          YES, GO CHECK CHANNEL TRIGGERS            F0010120
       NOP     *+2            (KICKED OUT IN CASE OF RTT)               F0010130
       TRA     CHSKP                                                    F0010140
       RNT     EOFIL          WAS END OF FILE SENSED..                  F0010150
       TRA     MEFER        **NO, GO TO ERROR ROUTINE.                  F0010160
 SKP01 AXT     **,1           RESTORE LOOPING IR.                       F0010170
       TRA     SKIP3+1        CONTINUE.                                 F0010180
 SKIP4 LXA     ERASA,1        LOAD NUMBER OF RECORDS TO BE SKIPPED.     F0010190
       TXL     SKIP6,1,0      ANY RECORDS TO BE SKIPPED..               F0010200
       LXA     SKIP6,C        RESTORE UNITT POINTER.                    F0010210
       STL     CHSKX          CHECK POSSIBLE PRIOR FILE SKIP, ETC.      F0010220
       NOP     *+2                                                      F0010230
       TRA     CHSKP                                                    F0010240
       RNT     EOFIL          WAS EOF NOT SENSED..                      F0010250
       TRA     MEFER         *MISSING EOF, TELL THEM.                   F0010260
 SKIP5 LXA     ERASA,1        LOAD NUMBER OF RECORDS TO BE SKIPPED.     F0010270
       TXL     TAPEX,1,0      ANY RECORDS TO BE SPACED FORWARD..        F0010280
       TSX     IOPRQ,4       *SKIP OVER ONE RECORD,                     F0010290
       PZE     SKIPR+2        BY READING THE LABEL.                     F0010300
       TNX     SKIP6,1,1      ANY MORE RECORDS TO BE SKIPPED..          F0010310
       SXA     SKP02,1        SAVE LOOPING IR.                          F0010320
       LXA     SKIP6,C        RESTORE UNITT POINTER.                    F0010330
       STL     CHSKX          YES, CHECK PREVIOUS SKIP.                 F0010340
       NOP     *+2                                                      F0010350
       TRA     CHSKP                                                    F0010360
       RFT     EOFIL          WAS EOF MISTAKENLY SENSED..               F0010370
       TRA     TEFER          YES, TELL THEM ABOUT IT.                  F0010380
 SKP02 AXT     **,1           RESTORE LOOPING IR.                       F0010390
       TRA     SKIP5+2        NO, CONTINUE SKIPPING.                    F0010400
       REM                                                              F0010410
 SKIP6 AXT     **,C           RESTORE IR C.                             F0010420
       NZT     ERASD          WERE ANY FILES SPACED..                   F0010430
       TRA     *+5            NO.                                       F0010440
       ZET     CURTP+3        YES. IS THERE A LABEL.                    F0010450
       TSX     FINDL,4        YES, FIND DATA POSITION.                  F0010460
       TRA     *+2            NOT LABELED, COMPUTE POSITION.            F0010470
       TRA     TAPE2         *POSITION SET BY FIND SUBROUTINE.          F0010480
       CAL     POINT,T        PICK UP CURRENT TAPE POSITION.            F0010490
       NZT     ERASD          WERE ANY FILES SPACED.                    F0010500
       TRA     *+4           *NO.                                       F0010510
       ANA     DCMSK          YES, MASK OUT ALL BUT FILE NUMBER.        F0010520
       ADD     L(01)          INITIALIZE RECORD POSITION.               F0010530
       ADD     ERASD          ADD FILE COUNT.                           F0010540
       ADD     ERASA          ADD RECORD COUNT.                         F0010550
       SLW     POINT,T        SAVE NEW POSITION.                        F0010560
       TRA     TAPE2         *CONTINUE WITH COMMON ROUTINE.             F0010570
       REM                                                              F0010580
       SPACE   3                                                        F0010590
 SKIPR IORPN   ,,-1           I/O COMMAND TO SKIP FILE                  F0010600
       TCH     *-1                                                      F0010610
       IORT    LABEL,,3       I/O COMMAND TO SKIP RECORD                F0010620
       REM                                                              F0010630
       EJECT                                                            F0010640
       REM ROUTINES TO ISSUE CURRENT READ/WRITE TAPE RECORD             F0010650
       REM                                                              F0010660
 TAPE0 CAL     CURTP+2        SAVE MODE IN HISTORIC BUFFER.             F0010670
       STA     UNITT+1,C      .                                         F0010680
       LNT     (WEFP)         IS THIS WRITE END OF FILE..               F0010690
       TRA     TAPES          NO.                                       F0010700
       TSX     (NDATA,4      *YES, ENTER NON-DATA SELECT                F0010710
       PZE     TAPNO,T,.WEF.  ROUTINE.                                  F0010720
       TRA     ETERR         *EOT ON WEF RETURN, GIVE MESSAGE.          F0010730
       STL     NOENT          NORMAL RETURN,                            F0010740
       TSX     ENTER,4        UPDATE DICTIONARY.                        F0010750
       STZ     NOENT          RESET FLAG.                               F0010760
       CAL     POINT,T        PICK UP CURRENT TAPE POSITION.            F0010770
       ANA     DCMSK          PRESERVE THE FILE COUNT,                  F0010780
       ADD     D(01)          AND INCREMENT IT.                         F0010790
       SSM                    SET WRITE OPERATION FLAG.                 F0010800
       STO     POINT,T        SAVE NEW TAPE POSITION.                   F0010810
       TRA     TAPE2         *CONTINUE WITH COMMON ROUTINE.             F0010820
       REM                                                              F0010830
       REM    OPERATION IS TAPE DATA TRANSMIT                           F0010840
 TAPES LFT     (SNAP)+(W...)  IS THIS CALL FOR (SNAP) OR WRITE..        F0010850
       TRA     TAPE1         *YES, ONE OR THE OTHER.                    F0010860
       LDC     CURTP+2,4      NO, CONSTRUCT (SCHU) INDEX.               F0010870
       CLA     (SCHU),4       PICK UP LAST STORE CHANNEL                F0010880
       TNZ     TAPE1          WAS EOF SENSED ON PRIOR READ..            F0010890
       TPL     TAPE1          YES, IS FOLLOWING RECORD DELETED..        F0010900
       STZ     (SCHU),4       YES, RESET MINUS FLAG (...P),             F0010910
       TRA     TAPEX         *AND IGNORE CURRENT REQUEST.               F0010920
 TAPE1 SXD     *+2,C              SET LOCATION AT                      $F0010930
       AXT     UNITT+8,4          UNITT+8                              $F0010940
       TIX     *+1,4,**           MINUS C(C) CHANNEL POINTER           $F0010950
       TRA     PATCH2             MOVE I/O (OR SNAPSHOT) LIST          $F0010960
       LFT     (SNAP)         IS THIS CALL FOR (SNAP)..                 F0010970
       TRA     SNAP0         *YES, GO TO SNAPSHOT ROUTINE.              F0010980
       SXD     *+2,C          COMPUTE LOCATION OF I/O SEQUENCE.         F0010990
       AXT     UNITT+2,4      .                                         F0011000
       TIX     *+1,4,**       .                                         F0011010
       NZT     CURTP+3        IS LABEL REQUIRED..                       F0011020
       TXI     *+1,4,1        NO, BYPASS IOSP LABEL COMMAND.            F0011030
       SXA     TPSEL,4        SET I/O TRANSLATOR CALLER.                F0011040
       LFT     20             IS THIS CALLLFOR OFF-LINE ROW..           F0011050
       TRA     ROTAT         *YES, ROTATE AND RETURN.                   F0011060
 TPROW NZT     CURTP+3        IS RECORD LABELED..                       F0011070
       TRA     *+7            NO.                                       F0011080
       LFT     (W...)         YES, IS THIS A WRITE OPERATION..          F0011090
       TRA     *+4            YES.                                      F0011100
       TSX     FINDL,4       *LOCATE ENTRY FOR DATA TO BE READ.         F0011110
       TRA     NODAT          NO DATA, DON-T READ                      $F0011120
       TRA     *+2            DATA EXISTS, READ IT.                     F0011130
       TSX     ENTER,4       *ENTER NEWLY WRITTEN DATA IN DICTIONARY.   F0011140
       CAL     TPSEL          PREPARE FOR READ FLAG.                    F0011150
       LFT     (W...)         IS THIS WRITE OPERATION..                 F0011160
       CLS     TPSEL          SET FLAG FOR                              F0011170
       STO     TPSEL          WRITE REQUEST.                            F0011180
       REM                                                              F0011190
       REM    ENTRY FROM FORWARD SKIPS AND WEF CALL                     F0011200
TAPE2  TRA     PATCH3                                                  $F0011210
       CAL     CURTP+6,4      .                                         F0011220
       SLW     **,4               MOVE HISTORIC INFORMATION            $F0011230
       TXH     *+2,4,3        .                                         F0011240
       SLW     **,4               .                                    $F0011250
       TIX     *-4,4,1        .                                         F0011260
       LNT     (WEFP)         IS THIS A WEF OR SKIP ENTRY..             F0011270
       LNT     (DATA)         .                                         F0011280
       TRA     TPSEL+1       *YES, ONE OR THE OTHER.                    F0011290
       TSX     IOPRQ,4       *ISSUE CURRENT TAPE DATA TRANSMIT REQUEST. F0011300
 TPSEL QZE     **             .                                         F0011310
       STZ     *-1            CLEAR OPERATION BIT S.                    F0011320
       LNT     (...C)         IS THIS A CHECK IMMEDIATE CALL..          F0011330
       TRA     TAPEX          NO,                                       F0011340
       STL     TAPRX          YES,                                      F0011350
       NOP     TAPEX          SET RETURN AND                            F0011360
       TRA     TAPR0         *CHECK CURRENT ACTIVITY IMMEDIATELY.       F0011370
       SPACE   3                                                        F0011380
 TAPEX STL     IORLX          SET RETURN FOLLOWING CONSOLE AND          F0011390
       NOP     3,4            REGISTER RESTORATION TO CALLER 3,4.       F0011400
       ZET     CURTP          WAS ERROR RETURN SPECIFIED..              F0011410
       STL     IORLX          YES, CHANGE CALLER RETURN                 F0011420
       NOP     4,4            POINT TO 4,4.                             F0011430
       LFT     ONLNX          BUT THEN, IS THIS AN ON-LINE CALL..       F0011440
 CHKTO STL     IORLX          YES, CHANGE CALLER RETURN                 F0011450
       NOP     2,4            POINT TO 2,4.                             F0011460
       TRA     IOSEX         *1660 A.D.                                 F0011470
       REM                                                              F0011480
       REM                                                              F0011490
       REM    OFF-LINE ROW BINARY CARD ROTATION SUBROUTINE              F0011500
 ROTAT CAL*    SKIP0          PICK UP INPUT CARD IMAGE 9L ADDRESS.      F0011510
       STA     TPROA+2                                                  F0011520
       CAL     ROBIO          MOVE I/O COMMAND.                         F0011530
       STD     UNITT+3,C      PLACE IN HISTORIC BUFFER                  F0011540
       STA     UNITT+3,C      FOR THIS CHANNEL.                         F0011550
       SXA     TPROC,T        SAVE CURRENT LOGICAL TAPENO.              F0011560
       SXA     TPROC+1,C      SAVE UNITT INDEX.                         F0011570
       STL     TAPRX          SET RETURN FROM CHANNEL CHECKER ROUTINE.  F0011580
       NOP     *+2            (MAKE SURE CARD IMAGE BUFFER IS CLEAR)    F0011590
       TRA     TAPR0         *CHECK PREVIOUS OPERATION.                 F0011600
       NOP     ROBUF+12,1     INDIRECT ADDRESSING CELL.                 F0011610
 TPROD AXT     24,1           LOAD WORD COUNT.                          F0011620
       STZ     ROBUF+24,1     CLEAR OUTPUT CARD IMAGE BUFFER            F0011630
       TIX     *-1,1,1                                                  F0011640
       AXT     12,2           LOAD SHIFT COUNT                          F0011650
 TPROA AXC     -1,4           LOAD FLIP-FLOP.                           F0011660
       AXT     12,1           INITIALIZE BIT COUNTER.                   F0011670
       LDQ     **             GET A WORD.                               F0011680
 TPROB ZAC                    CLEAR AC.                                 F0011690
       LGL     1              SHIFT IN NEXT BIT                         F0011700
       ALS     11             SPACE                                     F0011710
       LGL     1              SHIFT IN NEXT BIT                         F0011720
       ALS     11             SPACE                                     F0011730
       LGL     1              SHIFT IN NEXT BIT                         F0011740
       ALS     12,2           POSITION IN WORD                          F0011750
       ORS*    TPROD,4        INSERT INTO OUTPUT BUFFER.                F0011760
       TIX     TPROB,1,1     *IS HALF COMPLETE, NO CONTINUE.            F0011770
       CAL     TPROA+2        YES, INCREMENT WORD ADDRESS               F0011780
       ADD     L(01)          OF INPUT IMAGE.                           F0011790
       STA     TPROA+2        SET NEW ADDRESS.                          F0011800
       SXA     TPROA,4        RESET FLIP-FLOP.                          F0011810
       TXL     TPROA,4,1     *IS THIS ROW COMPLETE, NO CONTINUE.        F0011820
       TIX     TPROA,2,1     *YES, IS CARD COMPLETE, NO.                F0011830
 TPROC AXT     **,T           RELOAD CURRENT LOGICAL TAPENO.            F0011840
       AXT     **,C           RELOAD UNITT INDEX.                       F0011850
       TRA     TPROW         *RETURN TO COMMON ROUTINE.                 F0011860
       REM                                                              F0011870
 ROBIO IORT    ROBUF,,24                                                F0011880
       EJECT                                                            F0011890
       REM                                                              F0011900
       REM PREPARE FOR CURRENT REQUEST                                  F0011910
       REM                                                              F0011920
       REM    ENTRY POINT FOR CURRENT ON-LINE REQUEST                   F0011930
 ONLNC STZ     CURTP          SET NO ERROR-RETURN FLAG.                 F0011940
       ZSD     CURTP+2        DELETE LOGICAL TAPE NUMBER.               F0011950
       LDI     1,4            LOAD PARAMETER                            F0011960
       LNT     77777          IS THIS INDIRECT                          F0011970
       TRA     ONLN1          NO                                        F0011980
       STI     ERAS2          YES, INITIALIZE INDIRECT ADDRESS TO       F0011990
       LDI*    ERAS2          LOAD NEW PARAMETER                        F0012000
       TRA     *-4            AND CHECK                                 F0012010
       REM                                                              F0012020
       REM                                                              F0012030
       REM    ENTRY POINT FOR CURRENT OFF-LINE REQUEST                  F0012040
 TAPER XCL                    RECALL POSSIBLE ERROR RETURN              F0012050
       PAI                    FOR CURRENT REQUEST.                      F0012060
       LFT     377777         IS THIS ERROR RETURN                      F0012070
       ZAC                    NO.                                       F0012080
       STP     CURTP          SAVE ABSOLUTE RETURN FLAG                 F0012090
       STT     *+1            COMPUTE EFFECTIVE ADDRESS                 F0012100
       SXA     ERASA,**                                                 F0012110
       SUB     ERASA                                                    F0012120
       STA     CURTP          SET ERROR RETURN (MAY BE ZERO FOR NONE)   F0012130
       XCL                    RECALL FLAGS (1,4)                        F0012140
       PAI                                                              F0012150
       LXD     CURTP+2,T      RELOAD CURRENT LOGICAL TAPE NUMBER.       F0012160
       LFT     (SNAP)         IS THIS CALL FOR (SNAP)..                 F0012170
       AXT     SNPTAP,T       YES, LOAD SNAP TAPE NUMBER INSTEAD.       F0012180
 TPNRT TXH     TPNRR,T,**    *IS TAPE NUMBER LEGAL, NO.                 F0012190
       NZT     TAPNO,T        HAS THIS UNIT BEEN ASSIGNED A UCB..       F0012200
       TRA     TPNRR         *NO, THIS UPDATE TAPE IS RESRVD/7909/UNAVL.F0012210
       LNT     (TPER)         IS THIS (TPER) CALL..                     F0012220
       TXL     TPNRR,T,0     *NO, IS TAPE NUMBER LEGAL, NO.             F0012230
 DISKT TXL     TDISK,T,1      IS CALL FOR SYSTEM FUNCTION (NOP IF TAPE) F0012240
       PXD     ,T             NO, GET LOGICAL TAPE NUMBER               F0012250
       ALS     12             AND POSITION FOR SAVING IN                F0012260
       SLW     TPNUM          INDEX TABLE.                              F0012270
       CAL*    TAPNO,T        PREPARE TO SET THE MOOD.                  F0012280
       ARS     18             SHIFT TAPE ADDRESS TO AC ADDRESS.         F0012290
       LNT     (.D..)         IS MODE TO BE DECIMAL..                   F0012300
       ORA     L(16)          MODE TO BE BINARY.                        F0012310
       STA     CURTP+2        SAVE  TAPE UNIT ADDRESS (MODE).           F0012320
       ARS     4              SET IOPRQ MODE PERAMETERS                $F0012330
       ALS     16             .                                        $F0012331
       STT     L(SL)          .                                         F0012340
       CAL     TAPNO,T                                                  F0012350
       STP     CURTP+2        SAVE  OUTPUT TAPE FLAG.                   F0012360
 ONLN1 STI     CURTP+1        SAVE  INSTRUCTION,,FLAGS                  F0012370
       CAL*    TAPNO,T        PICK UP CHANNEL OF THIS TAPE FUNCTION.    F0012380
       ANA     DCMSK                                                    F0012390
       ARS     27                                                       F0012400
       PAX     ,4             LOAD CHANNEL NUMBER.                      F0012410
       ALS     4                                                        F0012420
       PAX     ,C             LOAD UNITT TABLE INDEX.                   F0012430
       TXH     TPNRR,4,NCHAN  DOES CHANNEL EXIST, NO.                   F0012440
       LFT     (TPER)         IS THIS RETURN AFTER ERROR ON PRIOR CHECK.F0012450
       TRA     DGRET         *YES                                       F0012460
       REM                                                              F0012470
       REM    CHECK PRIOR ACTIVITY ON THIS UNIT                         F0012480
       REM                                                              F0012490
       REM    ENTRY FOR IMMEDIATE CHECK OF CURRENT OPERATION            F0012500
 TAPR0 CAL     UNITT+12,C     PICK UP HISTORICAL FLAGS                  F0012510
       TZE     TAPR9+7       *IS THERE ANY PRIOR HISTPRY..              F0012520
       PAI                    YES, LOAD HISTORICAL FLAGS.               F0012530
       LFT     ONLNX          IS THIS ON-LINE..                         F0012540
       TRA     TAPR9         *YES, EXIT.                                F0012550
       CAL     UNITT+13,C     PICK UP HISTORICAL LOGICAL TAPE           F0012560
       PDX     ,H             NUMBER.                                   F0012570
       LFT     (SKIP)         IS THIS CHECK OF PRIOR TAPE SKIP FORWARD..F0012580
       TRA     TAPR7          YES                                       F0012590
       REM                                                              F0012600
       REM    ACTIVITY WAS ON OR OFF LINE DATA TRANSMIT                 F0012610
       LNT     (W...)         YES, IS THIS WRITE-SELECT OPERATION..     F0012620
       TXI     *+1,H,NTAPE    NO, BUMP LOGICAL TAPE NO. TO READ-BLOCK   F0012630
       CAL     TERST,H        INCREMENT RECORD COUNT, READ OR WRITTEN.  F0012640
       ADD     L(01)                                                    F0012650
       STO     TERST,H                                                  F0012660
       TIX     *+1,H,NTAPE    BUMP LOGICAL TAPE NUMBER BACK.            F0012670
       REM                                                              F0012680
       REM    REENTRY TO CHECK AFTER REREADING/REWRITING RECORD         F0012690
 TAPR1 STL     CHKIX          SET RETURN FROM CHANNEL CHECKER ROUTINE   F0012700
       NOP     *+2                                                      F0012710
       TRA     CHKIO         *CHECK PRIOR DATA TRANSMIT                 F0012720
       LNT     (DATA)         IS THIS NON-DATA-TRANSMIT OPERATION..     F0012730
       TRA     TAPR9          YES.                                      F0012740
       LFT     (W...)         NO, IS THIS WRITE..                       F0012750
       TRA     TAPRD          YES                                       F0012760
       REM                                                              F0012770
       REM    PRIOR OPERATION WAS READ                                  F0012780
       SXA     *+1,H          CONSTRUCT (SCHU) INDEX                    F0012790
 TAPRF AXC     **,4           BY COMPLEMENTED TAPENO.                   F0012800
       CAL     TAPNO,H        PICK UP RESULTS OF                        F0012810
       PAC     ,2             SCHX FOR PRIOR READ                       F0012820
       CLA     3,2            OF THIS TAPE FUNCTION.                    F0012830
       ORA     LSEVN          ALLOW (SCHU) ARITMETIC.                   F0012840
       STO     (SCHU),4       SAVE IN PROPER (SCHU) WORD.               F0012850
       STA     ERASA                                                    F0012860
       LXA     TAPRF,H        .                                         F0012870
       RNT     EOFIL          WAS EOF SENSED..                          F0012880
       NZT     UNITT+14,C     NO, IS LABEL DELETED..                    F0012890
       TRA     TAPRB          YES, DON'T CHECK NOISE ON UNLBLD RECORDS, F0012900
       REM     NOR ON LABELED EOF (IOEX HAS DONE IT ALREADY)            F0012910
       REM                                                              F0012920
       PAX     ,4                                                       F0012930
       CLA     UNITT+3,C      PREPARE TO COMPARE I/O COMMAND            F0012940
       ANA     ADMSK          WITH SCHX RESULTS.                        F0012950
       CAS     ERASA          WAS AN ACTUAL RECORD READ..               F0012960
       TRA     TAPRA          YES.                                      F0012970
       TRA     TAPR6          NO, LABEL ONLY. TRY AGAIN.                F0012980
       TXL     TAPRA,4,LABEL  MAYBE, IS ADDRESS BELOW LABEL BUFFER..    F0012990
       CAL     TERRT,H        NO, INCREMENT NOISE RECORD COUNT.         F0013000
       ADD     D(01)          ON READS.                                 F0013010
       SLW     TERRT,H        .                                         F0013020
       TRA     TAPR6         *TRY AGAIN.                                F0013030
 TAPRA RFT     REDUN+WMODE    WAS REDUNDANCY SENSED READING DATA..      F0013040
       TRA     TAPRC         *YES.                                      F0013050
       CLA     UNITT+16,C     NO, LOAD LABEL FLAG.                      F0013060
       TMI     TAPR9          SHOULD LABEL BE IGNORED.                  F0013070
       CLA     UNITT+8,C      PICK UP LABEL READ LAST TIME.             F0013080
       SUB     UNITT+14,C     SUBTRACT THE REQUESTED LABEL.             F0013090
       TNZ     POSR0         *ARE THEY THE SAME, NO..                   F0013100
       CLA     UNITT+9,C      YES, PICK UP ACTUAL POSITION OF TAPE,     F0013110
       SUB     UNITT+15,C     SUBTRACT WHAT IT SHOULD BE.               F0013120
       TNZ     POSR0         *WAS CORRECT RECORD READ..                 F0013130
       TXI     TAPRE,H,NTAPE  YES, CHECK CURRENT TEMPORARY RTT TOTAL.   F0013140
       REM                                                              F0013150
       REM    TAPE IS INCORRECTLY POSITIONED, TRY TO CORRECT IT         F0013160
 POSR0 CAL     UNITT+8,C      GET LABEL OF RECORD ACTUALLY READ.        F0013170
       STL     NOENT          SET FLAG FOR DUMMY SEARCH.                F0013180
       TSX     FINDL,4       *IS THERE A HISTORY OF IT..                F0013190
       TRA     POSRR         *NO, GO TO DIAGNOSTIC.                     F0013200
       STZ     NOENT          RESET SEARCH FLAG.                        F0013210
       CLA     UNITT+9,C      GET POSITION ACTUALLY READ.               F0013220
       STA     ERASA          SAVE RECORD POSITION,                     F0013230
       STD     ERASD          AND FILE POSITION.                        F0013240
       SXA     POSR3+1,C      SAVE IR C.                                F0013250
       CLA     UNITT+15,C     GET POSITION WHERE TAPE SHOULD BE.        F0013260
       ANA     DCMSK          MASK OUT RECORD POSITION                  F0013270
       SUB     ERASD          COMPUTE THE FILE DIFFERENCE.              F0013280
       TZE     POSR3+2       *IS IT OFF BY ANY FILES, NO..              F0013290
       PDX     ,1             LOAD FILE DIFFERENCE.                     F0013300
       TMI     POSR2         *SHOULD ANY FILES BE BACKSPACED,YES..      F0013310
 POSR1 TSX     IOPRQ,4       *NO, SKIP FORWARD NFILES.                  F0013320
       PZE     SKIPR,2                                                  F0013330
       TIX     *-2,1,1        ALL FILES SPACED..                        F0013340
       TRA     POSR3          YES, CONTINUE BELOW.                      F0013350
 POSR2 AXT     .BSF.,4        BACKSPACE NFILES.                         F0013360
       SXD     NDSEL,4        .                                         F0013370
       TSX     NONDT,4        .                                         F0013380
       TSX     NONDT,4        .                                         F0013390
       TIX     *-1,1,1        ALL FILES BACKSPACED..                    F0013400
       TRA     POSR1          YES, BUT GET OVER FILE MARK.              F0013410
 POSR3 ZSA     ERASA          ALL FILES ARE SPACED, CLEAR RECORD COUNT. F0013420
       AXT     **,1           RESTORE IR C.                             F0013430
       CLA     UNITT+15,C     PICK UP PROPER TAPE POSITION.             F0013440
       ANA     ADMSK          SAVE ONLY RECORD COUNT                    F0013450
       SUB     ERASA          SUBTRACT ACTUAL RECORD POSITION.          F0013460
       PAX     ,1             LOAD RECORD COUNT DIFFERENCE.             F0013470
       TMI     POSR5         *SHOULD ANY RECORDS BE BACKSPACED, YES..   F0013480
 POSR4 TNX     POSR6,1,1      NO, SHOULD ANY BE FORWARD SPACED..        F0013490
       TSX     IOPRQ,4       *YES, SKIP FORWARD ONE RECORD.             F0013500
       PZE     *+1,2                                                    F0013510
       IORTN   *+1,,-1        I/O COMMAND TO SKIP RECORD (NOP).         F0013520
       TRA     POSR4          CONTINUE ON RECORD COUNT.                 F0013530
 POSR5 AXT     .BSR.,4        BACKSPACE NRECORDS.                       F0013540
       SXD     NDSEL,4        .                                         F0013550
       TSX     NONDT,4        .                                         F0013560
       TSX     NONDT,4        .                                         F0013570
       TIX     *-1,1,1        ANY MORE RECORDS TO BACKSPACE..           F0013580
 POSR6 LXA     POSR3+1,C      RESTORE IR C.                             F0013590
       STL     CHKIX          TAPE SHOULD BE POSITIONED                 F0013600
       NOP     *+2            CORRECTLY. RESET ANY FLAGS.               F0013610
       TRA     CHKIO                                                    F0013620
       CAL     TAPNO,H        INCREMENT POSITIONING ERROR COUNT.        F0013630
       ADD     D(01)                                                    F0013640
       SLW     TAPNO,H                                                  F0013650
       PAI                                                              F0013660
       LNT     62             HAVE THERE BEEN 50 POSITIONING ERRORS..   F0013670
       TRA     TAPR6         *NO, TRY AGAIN.                            F0013680
       LDI     (SCHU)         YES, RELOAD FLAGS,                        F0013690
       CLA     EXPOS          AND PICK UP ERROR MESSAGE PARAMETERS.     F0013700
       TRA     IODGA         *GO TO TAPE DIAGNOSTIC.                    F0013710
       SPACE   3                                                        F0013720
       REM    CHECK FOR REDUNDANCY READING UNLABELED DATA OR END FILE   F0013730
       REM                                                              F0013740
 TAPRB RFT     REDUN+EOFIL+WMODE  ANY TROUBLE..                         F0013750
       TRA     *+4            YES, ONE OR THE OTHER.                    F0013760
       LFT     ONLNX          NO, WAS PRIOR OPERATION ON-LINE..         F0013770
       TRA     TAPR9          YES, DO NOT INCREMENT COUNTERS.           F0013780
       TRA     UPDAT         *NO.                                       F0013790
       RFT     REDUN+WMODE    YES, WAS IT RTT OR WRONG MODE READ..      F0013800
       TRA     TAPRC         *YES, GO TO ERROR PROCEDURE                F0013810
       ZAC                    NO, SET END OF FILE FLAG.                 F0013820
       LNT     (...C)         WAS DELAY AND CHECK REQUESTED..           F0013830
       SSM                    NO, SET FLAG TO OMIT NEXT RECORD          F0013840
       LNT     (..E.)         IS EOF PROHIBITED..                       F0013850
       TRA     TEFER         *YES, PRINT ERROR COMMENT.                 F0013860
       STO     (SCHU),4       NO, SET END FILE FLAG                     F0013870
       CAL     POINT,H        PICK UP CURRENT POSITION                  F0013880
       ANA     DCMSK          PRESERVE FILE POSITION.                   F0013890
       ADD     INITL          INCREMENT FILE COUNT AND SET              F0013900
       SLW     POINT,H        RECORD POSITION.                          F0013910
       TRA     TAPR9          CLEAR HISTORICAL BUFFER, AND EXIT.        F0013920
       REM                                                              F0013930
       REM    REDUNDANCY READING.                                       F0013940
       REM                                                              F0013950
 TAPRC LXA     TAPRF,H        RELOAD HISTORICAL LOGICAL TAPENO.         F0013960
       RFT     WMODE          WAS TROUBLE A WRONG MODE READ..           F0013970
       NZT     UNITT+11,C     YES, WAS THERE AN ERROR RETURN..          F0013980
       TRA     RDPRR        **NOT WRONG MODE, OR NO ERROR RETURN.       F0013990
       TSX     (NDATA,4       WRONG MODE READ WITH ERROR RETURN.        F0014000
       PZE     TAPNO,H,.BSR.  BACKSPACE BEFORE THE RECORD READ WELL.    F0014010
       CLA     UNITT+11,C     PICK UP HISTORIC ERRET                    F0014020
       SLW     ERRET,H        FOR ERROR RETURN.                         F0014030
       LAC     TAPRF,4        SAVE FLAGS IN PROPER (SCHU).              F0014040
       STI     (SCHU),4       .                                         F0014050
       CAL     TERTT,H        REDUCE RTT COUNTER ON READS.              F0014060
       SUB     L(01)          .                                         F0014070
       SLW     TERTT,H        .                                         F0014080
       TRA     TAPR9         *EXIT ON WRONG MODE READ SIGNAL.           F0014090
       REM                                                              F0014100
       REM    PRIOR ACTIVITY WAS WRITE                                  F0014110
 TAPRD RFT     EOTAP          WAS END TAPE SENSED..                     F0014120
       TRA     ETERR         *YES                                       F0014130
       REM                                                              F0014140
       REM     TEMPORARY RTT POSSIBLY SENSED                            F0014150
 TAPRE LDI     TERCT,H        LOAD ERROR COUNTS FOR TESTING.            F0014160
       TIX     TAPR3,H,NTAPE *BUMP HISTORIC TAPENO BACK ON READ         F0014170
       REM                                                              F0014180
       REM     ERROR ON WRITE SELECT, POSSIBLY                          F0014190
       RNT     36             IS CUMULATIVE ERROR COUNT 30 FOR THIS TAPEF0014200
       TRA     UPDAT         *NO.                                       F0014210
       CLA     WTXRM          YES, PICK UP ERROR MESSAGE PARAMETERS.    F0014220
       TRA     TAPRG         *GO CLEAR OUT COUNT                    (25)F0014230
       REM                                                              F0014240
       REM     ERROR ON A READ SELECT, POSSIBLY                         F0014250
 TAPR3 RNT     62             IS CUMULATIVE ERROR COUNT 50 ON THIS TAPE.F0014260
       TRA     UPDAT         *NO.                                       F0014270
       CLA     RDXRM          YES, PICK UP ERROR MESSAGE PARAMETERS,    F0014280
       TRA     RDPRR+1       *GO TO DIAGNOSTIC.                         F0014290
       SPACE   3                                                        F0014300
       REM RETRY READING  ONLY LABEL READ OR MISPOSITIONED PREVIOUSLY   F0014310
       REM                                                              F0014320
 TAPR6 LXA     TAPRF,H       PICK UP HISTORIC LOGICAL TAPNO.            F0014330
       AXT     UNITT+2,4                                                F0014340
       NZT     UNITT+14,C     SHOULD WE EXPECT A LABEL..                F0014350
       AXT     UNITT+3,4      NO, BYPASS LABEL READING.                 F0014360
       SXD     *+1,C         .                                          F0014370
       TIX     *+1,4,**      .                                          F0014380
       SXA     TAPRS,4        SET UP ORIGIN OF I/O COMMAND SEQUENCE.    F0014390
       CAL     UNITT+1,C      SET UP MODE.                              F0014400
       ALS     12             .                                         F0014410
       STT     TAPRS          .                                         F0014420
       LDI     UNITT+12,C     CHECK FOR WRITE/READ OPERATION.           F0014430
       CLA     TAPRS          PICK UP PARAMETER FOR SPECIAL ENTRY (MODE)F0014440
       LFT     (W...)         IS THIS WRITE..                           F0014450
       SSM                    YES, SET FLAG.                            F0014460
       TSX     IOPRQ+2,4     *RETRY.                                    F0014470
 TAPRS QZE     **,**,IOPSL    .                                         F0014480
       TRA     TAPR1         *CHECK THIS RETRY.                         F0014490
       SPACE   10                                                       F0014500
       REM *************************************************************F0014510
       REM                                                              F0014520
       REM    CHECK PRIOR TAPE SPACE FORWARD OPERATION                  F0014530
       REM                                                              F0014540
 TAPR7 STL     CHSKX          SET RETURN FROM SKIP CHECKER ROUTINE      F0014550
       NOP     *+2                                                      F0014560
       TRA     CHSKP         *CHECK FINAL SKIP                          F0014570
       CLA     UNITT+3,C      PICK UP SKIP PARAMETER.                   F0014580
       PAX     ,4             LOAD RECORD COUNT.                        F0014590
       RFT     EOFIL          WAS EOF SENSED..                          F0014600
       TRA     TAPR8          YES                                       F0014610
       TXL     MEFER,4,0     *NO. WERE RECORDS SPACED FORWARD, NO.      F0014620
       TRA     TAPR9         *YES, VALID SKIP PERFORMED.                F0014630
       REM                                                              F0014640
       REM    CHECK FINAL RECORD SPACED FORWARD                         F0014650
 TAPR8 TXL     TAPR9,4,0      WERE ANY RECORDS SPACED..                 F0014660
       TRA     TEFER         *YES, UNEXPECTED EOF, GIVE MESSAGE.        F0014670
       REM                                                              F0014680
       REM                                                              F0014690
       REM *************************************************************F0014700
       REM TERMINAL ROUTINE TO UPDATE COUNTERS AND                      F0014710
       REM     CLEAR THE HISTORIC BUFFER.                               F0014720
       REM                                                              F0014730
       REM    ENTRY FOR TAPE DATA TRANSMIT                              F0014740
 UPDAT CAL     POINT,H        PICK UP PREVIOUS TAPE POSITION AND        F0014750
       ADD     L(01)          INCREMENT RECORD COUNT.                   F0014760
       SLW     POINT,H        SAVE NEW TAPE POSITION.                   F0014770
       REM                                                              F0014780
       REM    ENTRY FOR TAPE NON-DATA AND ON-LINE SELECTS               F0014790
 TAPR9 STZ     UNITT+1,C      CLEAR HISTORIC BUFFER FOR THIS CHANNEL.   F0014800
       STZ     UNITT+11,C     .                                         F0014810
       STZ     UNITT+12,C     .                                         F0014820
       STZ     UNITT+13,C     .                                         F0014830
       STZ     UNITT+14,C     .                                         F0014840
       STZ     UNITT+15,C     .                                         F0014850
       STZ     UNITT+16,C     .                                         F0014860
       LXD     CURTP+2,T      RESTORE CURRENT TAPENO FOR ERROR TEST, ETCF0014870
       LDI     CURTP+1        LOAD CURRENT INSTRUCTION,,FLAGS (1,4)     F0014880
       LFT     ONLNX+(SNAP)   IS THIS ON-LINE OR SNAP..                 F0014890
       TRA     TAPRX-1       *YES, NO ERROR RETURN POSSIBLE.            F0014900
       CLA     ERRET,T        ANY ERROR ON THIS LOGICAL TAPE..          F0014910
       TZE     TAPRW         *IS THERE STILL AN ERROR RETURN..          F0014920
       STA     *+2            YES, ERROR OCCURED, INITIALIZE RETURN.    F0014930
       STL     IORLX          SET RETURN FROM CHANNEL RESTORE ROUTINE   F0014940
       NOP     **             TO ERROR RETURN.                          F0014950
       STZ     ERRET,T        DELETE ERROR FLAG.                        F0014960
       TRA     IOSEX         *RELOAD ALL REGISTERS.                     F0014970
 TAPRW CLA     POINT,T             PICK UP CURRENT TAPE POSITION.       F0014980
       SLW     CURTP+4        SET DATA POSITION FOR THIS REQUEST.       F0014990
       LNT     (W...)         IS THIS A WRITE OPERATION..               F0015000
       SLW     POINT,T        NO, RESET POSSIBLE WRITE FLAG.            F0015010
       PIA                    RESTORE CALLER 1,4.                       F0015020
 TAPRX TRA*    **            *EXIT, TO ISSUE CURRENT REQUEST, ETC.      F0015030
       REM                                                              F0015040
       REM                                                              F0015050
       REM   DISK LIBRARY READING                                       F0015060
       REM                                                              F0015070
WITHOT BOOL    07400                                                (33)F0015080
WITH   BOOL    07401                                                (33)F0015083
TDISK  LNT     (SKIP)         IS THIS (SKIP)                        (33)F0015086
TDISKP TSX     MNDSK,4        NO, INITIALIZE XR4 FOR CALLTR         (33)F0015090
       AXT     WITH,4         YES, RESET SWITCH FOR FIRST TIME      (33)F0015100
       SXD     CALLDR,4       ...                                   (33)F0015110
       TRA     TAPEX          RETURN                                (33)F0015120
MNDSK  LFT     (...C)+(CHKU)  SHOULD WE READ NOW                    (33)F0015130
       TXI     TDSK3,4,TDSK5+TDISKP                                 (33)F0015140
       REM                    YES,SET XR4 FOR CALLTR                (33)F0015150
       STL     TWR            NO, REMEMBER READ CALL                (33)F0015160
       TRA     TAPEX          RETURN                                (33)F0015170
TWR    PZE                    SET NON-ZERO ON READ AND PROCEED      (33)F0015180
TDSK3  LNT     (CHKU)         IS THIS CHECK UNIT                    (33)F0015190
       TRA     *+3            NO                                    (33)F0015191
       NZT     TWR            YES, WAS THERE A PRECEDING READ       (33)F0015192
       REM                    AND PROCEED                           (33)F0015200
       TRA     CHKTO          NO, RETURN                            (33)F0015210
       STZ     TWR            SET TO ALL READS DONE                 (33)F0015220
       STI     ERAS1          SAVE INDICATORS                       (33)F0015230
CALLTR SXA     SYSTRA,4       SET RETURN FROM SYSLDR                (33)F0015240
       STL     (SCHU)+SYSTAP  SET NO EOF, RESET BY SCATTER-LOAD     (33)F0015250
CALLDR TSX     SYSLDR,4,1     READ NEXT RECORD, NOTE THAT DECRMENT  (33)F0015260
       REM                    MAY BE MODIFIED                       (33)F0015270
       BCI     1,9FL001                                             (33)F0015280
TDSK5  AXT     LOAD1,4        RESTORE LOADING RETURN                (33)F0015290
       SXA     SYSTRA,4       ...                                   (33)F0015300
       AXT     WITHOT,4       SET CALLDR TO NOT FIRST READ          (33)F0015310
       SXD     CALLDR,4       ...                                   (33)F0015320
       LDI     ERAS1          RESTORE INDICATORS                    (33)F0015325
       LNT     (CHKU)         WAS THIS CHECK UNIT                   (33)F0015326
       TRA     TAPEX          NO, TAKE READ RETURN                  (33)F0015330
       TRA     CHKTO          YES, TAKE (CHKU) RETURN               (33)F0015331
       REM     ********************************************************$F0015340
       REM     PATCH TO PERMIT WRITE REDUNDANCY RECOVERY            (25)F0015345
 TAPRG STZ     TERCT,H        CLEAR '30 REDUNDANCY' COUNT           (25)F0015350
       TRA     RDPRR+1        FROM HISTORY CELL                     (25)F0015355
 IODGK TSX     IOPRQ,4        WRITE TRAILER RECORD ON               (25)F0015360
       MZE     IODGL          OUTPUT TAPE                           (25)F0015370
       STL     CHKIX          DELAY WITH NO ACTION                  (25)F0015380
       AXT     *+2,0                                                (25)F0015390
       TRA     CHKIO                                                (25)F0015400
       TSX     (NDATA,4       WRITE ANOTHER END OF FILE             (25)F0015410
               TAPNO,T,.WEF.                                        (25)F0015420
       TRA     IODGH-3        END OF TAPE RETURN                    (25)F0015430
       TRA     IODGH-3        NORMAL                                (25)F0015440
 IODGL IORT    *+1,,4                                               (25)F0015450
       BCI     4,1EOR  END OF OUTPUT REEL                           (25)F0015460
 IODGN TSX     (NDATA,4       REWIND TAPE TO CLEAR IOEX             (25)F0015470
               TAPNO,T,.REW.  EOT SIGNAL FROM UCB                   (25)F0015480
       TRA     IODGM+4                                              (25)F0015490
       DUP     1,32           PATCH SPACE                           (25)F0015500
       PZE                                                          (25)F0015510
       REM     ********************************************************$F0015920
 AVPCH SXD     CURTP+2,T      SAVE LOGICAL TAPE NUMBER.                $F0015930
       LNT     (SUAV)*(SUNV)-(CHKU) IS THIS SYSUAV CALL..              $F0015940
       TRA     TAPCK+1       *NO, TO CHECK UNIT                        $F0015950
       LXD     TAPNO,1        GET NUMBER OF TAPES                      $F0015960
       REM     TEST TAPE NUMBER GIVEN IN CALL                          $F0015970
       XEC     TPNRT         *(TXH    TPNRR,T,**)                      $F0015980
       PAI                    SAVE FLAGS FOR TEST                      $F0015990
       TXL     SUAV1,T,0      WAS TAPE NO. GIVEN..                     $F0016000
       LXD     CURTP+2,1      YES,USE IT                               $F0016010
 SUAV1 TXL     CHKTO,1,10     EXIT IF TAPE NO. BELOW 11                $F0016020
       REM     CHANGE ABOVE TEST IF STRUCTURE OF IOPUN IS ALTERED      $F0016030
       NZT     TAPNO,1        DOES TAPE (UCB) EXIST..                  $F0016040
       TRA     SUAV3         *NO,SKIP IT                               $F0016050
       LDI*    TAPNO,1        OBTAIN UCB WORD ONE                      $F0016060
       RIL     400000         AND SET UNAVAILABLE                      $F0016070
       LBT                    IS THAT WHAT WAS WANTED..                $F0016080
       TRA     *+3           *YES                                      $F0016090
       LNT     40000          NO,IS UNIT RESERVED..                    $F0016100
       SIL     400000         MAKE AVAILABLE IF NOT                    $F0016110
       STI*    TAPNO,1        SAVE NEW UCB ONE                         $F0016120
 SUAV3 TXH     CHKTO,T,0     *WAS TAPE NO. GIVEN..                     $F0016130
       TXI     SUAV1,1,-1    *NO,CONTINUE FOR ALL UNITS                $F0016140
       EJECT                                                            F0016150
       REM *************************************************************F0016160
       REM                                                              F0016170
       REM SUBROUTINE TO LOCATE DATA POSITION                           F0016180
       REM                                                              F0016190
 FINDL SXA     FIND5,4        SAVE CALLING LINKAGE.                     F0016200
       AXT     TABSZ,4        LOAD LENGTH OF TABLE OF CONTENTS.         F0016210
 FIND0 NZT     NOENT          IS THE LABEL IN THE CURRENT BUFFER.       F0016220
 FIND1 CAL     CURTP+3        YES, OTHERWISE ALREADY IN AC.             F0016230
 FIND2 LAS     TABLE,4        DOES LABEL MATCH THIS ENTRY.              F0016240
       TRA     *+2            NO.                                       F0016250
       TRA     FIND3          YES, NAMES ARE THE SAME.                  F0016260
       TIX     FIND0,4,2     *NO. IS THE TABLE EXHAUSTED, NO CONTINUE.  F0016270
       LXA     FIND5,4        YES, NO PRIOR HISTORY. RESTORE LINKAGE.   F0016280
       TRA     1,4           *TAKE NOT FOUND RETURN TO CALLER.          F0016290
 FIND3 SXD     FIND4,4        SAVE INDEX VALUE FOR THIS ENTRY.          F0016300
       ZET     NOENT          SHOULD THE CURRENT BUFFER BE UPDATED.     F0016310
       TRA     FIND5          NO.                                       F0016320
       CLA     TABLE+1,4      YES, GET POSITION OF DATA.                F0016330
       ERA     TPNUM          MASK OUT TAPE ADDRESS.                    F0016340
       LRS     12             SHIFT TAPE NUMBER INTO DECREMENT FIELD.   F0016350
       STD     FINDE          STORE TAPE NUMBER FOR TEST.               F0016360
       ZET     FINDE          HAS THE RIGHT DATA ON THE RIGHT           F0016370
       TRA     FIND2+3       *UNIT BEEN FOUND. NO, CONTINUE SEARCH.     F0016380
       LLS     12             YES, RETRIEVE REST OF THE RECORD COUNT.   F0016390
       LDQ     TABLE+1,4      LOAD THE DATA POSITION INTO THE MQ.       F0016400
       LFT     (SKIP)         IS THIS A TAPE REPOSITION OPERATION..     F0016410
       TRA     FIND4+4       *YES, SET POSITION ACCORDING TO HISTORY.   F0016420
       LAS     CURTP+4        DOES CURRENT TAPE POSITION MATCH HISTORY. F0016430
       SLW     CURTP+4        NO, TAPE MUST BE MISPOSITIONED.           F0016440
 FIND4 TXI     *+4,,**        YES.  DECREMENT HAS INDEX TO THIS ENTRY.  F0016450
       LNT     (W...)         IS THIS A WRITE OPERATION..               F0016460
       TQP     *-3           *NO. IS THIS A MULTIPLE RECORD FILE, NO.   F0016470
       CAL     CURTP+4        YES, GET LATEST TAPE POSITION.            F0016480
       LXD     CURTP+2,4      LOAD LOGICAL TAPE NUMBER.                 F0016490
       STA     POINT,4        UPDATE CURRENT TAPE POSITION.             F0016500
       STD     POINT,4                                                  F0016510
 FIND5 AXT     **,4           RESTORE LINKAGE.                          F0016520
       TRA     2,4           *TAKE FOUND EXIT TO CALLER.                F0016530
       REM                                                              F0016540
 NOENT PZE     **             INDICATES STRICT SEARCH.                  F0016550
 FINDE PZE     ,,**           DECREMENT ERASABLE FOR FIND SUBROUTINE.   F0016560
       REM                                                              F0016570
       REM                                                              F0016580
       REM SUBROUTINE TO UPDATE THE DICTIONARY                          F0016590
       REM                                                              F0016600
 ENTER SXA     ENTR7,4        SAVE CALLING LINKAGE.                     F0016610
       LXD     CURTP+2,4      LOAD LOGICAL TAPE NUMBER.                 F0016620
       CLA     POINT,4        GET CURRENT UNIT POSITION.                F0016630
       ORA     TPNUM          INCLUDE LOGICAL TAPE NUMBER WITH          F0016640
       SLW     ERAS1          POSITION AND SAVE.                        F0016650
       CLS     POINT,4        GET CURRENT UNIT POSITION.                F0016660
       TPL     ENTR4         *WAS LAST OPERATION A WRITE, YES.          F0016670
       STO     POINT,4        NO, SET WRITE FLAG.                       F0016680
       AXT     TABSZ,4        LOAD DICTIONARY LENGTH.                   F0016690
 ENTR1 CLA     TABLE+1,4      GET AN ENTRY.                             F0016700
       TZE     ENTR3         *IS THERE AN ENTRY, NO.                    F0016710
       LAS     ERAS1          DOES THIS WRITE OVER-WRITE DATA.          F0016720
       TRA     *+3            POSSIBLY.                                 F0016730
       TRA     ENTR2         *YES.                                      F0016740
       TRA     ENTR3          NO.                                       F0016750
       ERA     TPNUM          MAYBE. DELETE LOGICAL TAPE NUMBER         F0016760
       ARS     12             FROM ENTRY. SHIFT TAPE NUMBER TO          F0016770
       ANA     DCMSK          DECREMENT FIELD AND MASK OUT REST.        F0016780
       TNZ     ENTR3         *IS THIS THE SAME LOGICAL TAPE, NO.        F0016790
 ENTR2 STZ     TABLE,4        DELETE THIS ENTRY FROM THE                F0016800
       STZ     TABLE+1,4      DICTIONARY.                               F0016810
 ENTR3 TIX     ENTR1,4,2     *HAS THE ENTIRE DICTIONARY BEEN SEARCHED.  F0016820
 ENTR4 ZET     NOENT          IS THIS STRICTLY AN UPDATE.               F0016830
       TRA     ENTR7         *YES, DO NOT ENTER DATA.                   F0016840
       TSX     FINDL,4        IS THIS A MULTIPLE RECORD FILE.           F0016850
       TRA     ENTR5         *NO, UNIQUE LABEL.                         F0016860
       LXD     FIND4,4        YES, LOAD ENTRY POSITION IN DICTIONARY.   F0016870
       CLA     TABLE+1,4      GET DATA POSITION WORD AND                F0016880
       SSM                    SET THE SIGN MINUS TO INDICATE THAT       F0016890
       TRA     ENTR6+3        IT IS A MULTIPLE RECORD.                  F0016900
 ENTR5 AXT     TABSZ,4        LOAD DICTIONARY LENGTH.                   F0016910
       NZT     TABLE,4        IS THIS LOCATION AVAILABLE.               F0016920
       TRA     ENTR6         *YES.                                      F0016930
       TIX     *-2,4,2       *NO. IS TABLE EXHAUSTED, NO CONTINUE.      F0016940
       CLA     OVRFL          YES, GET ERROR MESSAGE PARAMETERS.        F0016950
       TRA     IODG0         *GO TO DIAGNOSTIC.                         F0016960
 ENTR6 CAL     CURTP+3        GET BCD LABEL AND                         F0016970
       SLW     TABLE,4        ADD TO DICTIONARY.                        F0016980
       CLA     ERAS1          GET DATA POSITION AND INSERT              F0016990
       STO     TABLE+1,4      IN DICTIONARY WITH NAME.                  F0017000
 ENTR7 AXT     **,4           RESTORE LINKAGE.                          F0017010
       TRA     1,4           *RETURN TO CALLER.                         F0017020
       REM                                                              F0017030
 OVRFL PZE     *+1,,ERAS1     LOC. OF PRINT PARAMETERS,,LABEL INSERT.   F0017040
       PZE     *+1,,5         LOCATION OF MESSAGE,, WORD COUNT.         F0017050
       BCI     5, DICTIONARY OVERFLOW IN IOP.                           F0017060
       REM                                                              F0017070
       EJECT                                                            F0017080
************************************************************************F0017090
       REM                                                              F0017100
       REM SUBROUTINE TO NOTE STATUS OF CHANNEL TRIGGERS                F0017110
       REM                                                              F0017120
       REM     IR H CONTAINS HISTORICAL LOGICAL TAPENO                  F0017130
       REM        (SCHU) WILL CONTAIN TRIGGER FLAGS                     F0017140
       REM                                                              F0017150
       REM                                                              F0017160
       REM                BIT 28 BEGINNING OF FILE                     $F0017165
       REM                BIT 29 RECORD READ IN WRONG MODE              F0017170
       REM                    30 CHECK COMPLETED                        F0017180
       REM                    31 I/O CHECK (NOT AVAILABLE)              F0017190
       REM                    32 REDUNDANCY CHECK (READ ONLY)           F0017200
       REM                    33 END OF FILE                            F0017210
       REM                    34 END OF TAPE                            F0017220
       REM                    35 BEGINNING OF TAPE                      F0017230
       REM                                                              F0017240
       REM                                                              F0017250
 CHKIO RIR     777777         CLEAR INSTRUCTION FROM INDICATORS.        F0017260
       SIR     150            PRESET INDICATORS.                        F0017270
       CAL     TAPNO,H        DELAY TILL PRIOR SELECT IS                F0017280
       PAC     ,4             COMPLETED FOR                             F0017290
       ZET     1,4            THIS TAPE                                 F0017300
       TRA     *-1            FUNCTION.                                 F0017310
       NZT     2,4            COMPLETED, TEST FOR BTT.                  F0017320
       SIR     LODPT          UCB3 IS ZERO, ASSUME LOAD POINT (BIT 35). F0017330
       CLA     0,4            TEST FOR EOT                              F0017340
       ANA     *-1            AS INDICATED IN UCB1, BIT 18.             F0017350
       TZE     *+2            NO EOT SENSED..                           F0017360
       SIR     EOTAP          END OF TAPE WAS SENSED, (BIT 34 ON).      F0017370
       CLA     3,4            TEST FOR EOF                              F0017380
       TPL     *+2            AS INDICATED IN UCB4, BIT S.              F0017390
       SIR     EOFIL          END OF FILE WAS SENSED, (BIT 33 ON).      F0017400
       ALS     1              TEST FOR RTT (READ ONLY)                  F0017410
       PBT                    RTT SENSED..                              F0017420
       RIR     REDUN          NO RTT SENSED, (BIT 32 OFF).              F0017430
       ALS     1              TEST FOR WRONG MODE READ.                 F0017440
       PBT                    .                                         F0017450
       RIR     WMODE          NOT READ IN WRONG MODE (BIT 29 OFF).      F0017460
       CAL     2,4            CHECK BOF                                $F0017461
       ANA     REC                                                     $F0017462
       TNZ     *+2            IS THIS BOF                              $F0017463
       SIR     BOFBIT         YES BIT 28=1                             $F0017464
       STI     (SCHU)         SAVE FLAGS.                               F0017470
 CHKIX TRA*    **            *RETURN.                                   F0017480
REC    OCT     777777                                                  $F0017485
       REM                                                              F0017490
       REM                                                              F0017500
       REM     CHECK SKIP OPERATION                                     F0017510
 CHSKP STL     CHKIX          SET RETURN FROM CHANNEL CHECK ROUTINE     F0017520
       NOP     *+2                                                      F0017530
       TRA     CHKIO         *CHECK THIS SKIP FORWARD OPERATION         F0017540
       RFT     REDUN          WAS TAPE REDUNDANCY SENSED..              F0017550
       TRA     SKPRR         *YES, PRINT ERROR MESSAGE                  F0017560
 CHSKX TRA*    **                                                       F0017570
       REM *************************************************************F0017580
       TTL     READ/WRITE TRANSLATOR                                    F0017590
       REM ROUTINE TO ENTER TAPE ACTION REQUEST TO IOEX                 F0017600
       SPACE   3                                                        F0017610
       REM             CALLING SEQUENCE                                 F0017620
       REM                                                              F0017630
       REM              TSX    IOPRQ,4                                  F0017640
       REM              QZE    IOSEQ,MODE                               F0017650
       REM                                                              F0017660
       REM             WHERE                                            F0017670
       REM                                                              F0017680
       REM              QZE = PZE FOR READ                              F0017690
       REM                  = MZE FOR WRITE                             F0017700
       REM                                                              F0017710
       REM              IOSEQ IS THE LOCATION OF AN I/O COMMAND SEQUENCEF0017720
       REM                                                              F0017730
       REM              MODE  = 0 FOR BCD                               F0017740
       REM                    = 2 FOR BINARY                            F0017750
       REM              MODE USUALLY APPEARS IN TAG OF L(SL)            F0017760
       SPACE   2                                                        F0017770
       REM              IR2 (CALLED T) POINTS TO WORD WITH L(UCB)IN ADDRF0017780
       REM                                                              F0017790
       REM                                                              F0017800
       REM                                                              F0017810
 IOPRQ CLA     1,4            PICK UP PARAMETER.                        F0017820
       ORA     L(SL)          MASK IN THE LOCATION OF SEL ROUTINES.     F0017830
       REM    ENTRY POINT TO AVOID SEL WORD WORD MODE SETTING           F0017840
       SXA     IOPRX,4        SAVE LINKAGE.                             F0017850
       XCA                    SAVE SEL WORD.                            F0017860
       CAL     TAPNO,T        LOCATE PROPER UCB WORD2,                  F0017870
       PAC     ,4             THROUGH THE I/O FUNCTION TABLE.           F0017880
       ZET     1,4            DELAY TILL                                F0017890
       TRA     *-1            UNIT TRAPS AND IS FREED.                  F0017900
       STQ     1,4            INSERT NEXT REQUEST IN UCB 2,             F0017910
       REM                                                              F0017920
       TSX     (ACTIV,4       ENTER REQUEST FOR TAPE                    F0017930
       PZE     TAPNO,T        ACTIVITY AND CONTINUE ON THE WAY.         F0017940
 IOPRX AXT     **,4           RETURN TO                                 F0017950
       TRA     2,4           *CALLER.                                   F0017960
       SPACE   5                                                        F0017970
       REM SEL ROUTINE ENTERED FROM IOEX                                F0017980
       REM                                                              F0017990
 IOPSL SXA     IOPSX,4        SAVE IOEX LINKAGE.                        F0018000
       PAC     ,4             FORM INDEXIC POINTER TO UCB.              F0018010
       TMI     IOPSM          IS IT POSTING TIME ..                     F0018020
       CAL     0,4            NO, SEL(+) MUST INITIATE I/O SEQUENCE.    F0018030
       PDX     ,2             PICK UP TAPE-ADDRESS.                     F0018040
       CLA     1,4            SET ORIGIN OF I/O COMMAND                 F0018050
       STA*    (RCHXI         SEQUENCE (IR1 POINTS TO CHANNEL).         F0018060
       STT     IOPSI          SET POSSIBLE WRONG MODE READ TEST.        F0018070
       STT     *+1            PREPARE TO MODIFY TAPE ADDRESS.           F0018080
       TXL     *+2,**,0       IS MODE TO BE BINARY..                    F0018090
       TXI     *+1,2,16       YES                                       F0018100
       TMI     IOPSW          IS THIS READ SELECT..                     F0018110
       STZ*    IOPLB,1        RESET NOISE RECORD TEST, LABEL+2.         F0018120
       STZ     IOPER,1        TURN OFF WRONG MODE SWITCH, PROVISIONALLY.F0018130
       CAL*    (URRXI         PICK UP NUMBER OF SEL(+) REENTRIES.       F0018140
       PAX     ,4             TEST FOR FIRST REENTRY.                   F0018150
       TXH     *+6,4,1        .                                         F0018160
       TXL     *+5,4,0        .                                         F0018170
 IOPSI TXH     *+2,**,0       FIRST TIME, WHAT WAS THE MODE..           F0018180
       TXI     *+2,2,16       BCD, INVERT TO BINARY.                    F0018190
       TIX     *+1,2,16       BINARY, INVERT TO BCD.                    F0018200
       STL     IOPER,1        SET MODE INVERSION ATTEMPT FLAG.          F0018210
       SXA     *+1,2                                                    F0018220
       RDS     **             SELECT TAPE UNIT                          F0018230
       XEC*    (RCHXI         AND RESET-LOAD CHANNEL.                   F0018240
 IOPSX AXT     **,4           LOAD LINKAGE AND                          F0018250
       TRA     1,4           *RETURN TO IOEX.                           F0018260
 IOPSW SXA     *+1,2                                                    F0018270
       WRS     **             SELECT TAPE UNIT                          F0018280
       TRA     IOPSX-1        AND CONTINUE ABOVE.                       F0018290
       SPACE   3                                                        F0018300
 IOPSM CAL     3,4            PICK UP LOGICAL TAPENO                    F0018310
       PDX     ,2             OF TRAPPING UNIT (UCB4).                  F0018320
       ZET*    IOPLB,1        TEST FOR NOISE.                           F0018330
       SIL     400000         FULL LABEL READ, RESET POSSIBLE NOISE FLAGF0018340
       LFT     440000         IS THERE AN IOEX NOISE FLAG,READING.. (28)F0018350
       TRA     IOPSN         *NO, OR ELSE WE HAD TO RESET IT.           F0018360
       CAL     TERRT,2        NOISE RECORD, INCREMENT COUNTER.          F0018370
       ADD     D(01)          .                                         F0018380
       STD     TERRT,2        .                                         F0018390
       LXA     IOPSX,4        TAKE NOISE RECORD READ RETURN         (28)F0018400
       TRA     2,4           *COMMENT 'NOISE DISCARDED'             (28)F0018401
 IOPSP ZET     .MODSW        TEST FOR DC-IOEX                       (28)F0018402
       STL     IOPER,1        YES, SET WRONG MODE READ              (28)F0018403
       TRA     IOPSF-3                                              (28)F0018410
 IOPSN LFT     200000         DO NOT TEST FOR RTT IF                    F0018420
       TRA     IOPSF         *EOF OR EOT WAS SENSED.                    F0018430
       LFT     100000         TEST FOR PERMANENT RTT ON READ.           F0018440
       TXI     IOPSP,2,NTAPE  PERMANENT RTT READING                 (28)F0018450
       CLA*    (URRXI         WERE THERE ANY RTT OR ERASE AREAS..       F0018460
       TZE     IOPSF         *NO.                                       F0018470
       LNT     040000         YES, HAVE WE JUST WRITTEN ..              F0018480
       TXI     *+6,2,NTAPE    NO, IT WAS A BAD READ.                    F0018490
       STA     ERASS          YES, INCREMENT NUMBER OF ERASE AREAS      F0018500
       CAL     TERCT,2        WRITTEN.                                  F0018510
       ADD     ERASS          BY CURRENT NUMBER OF ERASES.              F0018520
       SLW     TERCT,2        .                                         F0018530
       TRA     IOPSF         *CONTINUE BELOW.                           F0018540
       CAL     TERCT,2        INCREMENT READ RTTS.                      F0018550
       ADD     L(01)          .                                         F0018560
       STA     TERCT,2        .                                         F0018570
 IOPSF CAL     (COMMM         SAVE LAST SCHX RESULTS,                   F0018580
       STA     3,4            IN UCB4.                                  F0018590
       RIL     040000         RESET POSSIBLE WRITE FLAG.                F0018600
       ZET     IOPER,1        WAS THERE A SUCCESSFUL WRONG MODE READ.   F0018610
       SIL     140000         YES, SET WRONG MODE AND RTT BITS ON.      F0018620
       STZ     IOPER,1        RESET FLAG.                               F0018630
       PIA                    SAVE EOF/EOT, PERM RTT, TEMP RTT,         F0018640
       ALS     1              AND WRONF MODE FLAGS (IF ANY).            F0018650
       STP     3,4            .                                         F0018660
       STZ     1,4            HALT FURTHER ACTION ON THIS UNIT NOW.     F0018670
       TRA     IOPSX         *RETURN TO IOEX.                           F0018680
 ERASS PZE     **             COUNT OF ERASE ENTRIES TO SEL (+)         F0018690
       SPACE   3                                                        F0018700
       DUP     1,NCHAN                                                  F0018710
 IOPER PZE                    WRONG MODE FLAGS                          F0018720
 IOPLB PZE     UNITT+10-16    NOISE RECORD TEST POINTERS                F0018730
       PZE     UNITT+10-32                                              F0018740
       PZE     UNITT+10-48                                              F0018750
       PZE     UNITT+10-64                                              F0018760
       TTL     NON-DATA SELECT ROUTINES                                 F0018770
       REM NON-DATA SELECT ROUTINE                                      F0018780
       REM                                                              F0018790
       REM              CALLING SEQUENCE                                F0018800
       REM                                                              F0018810
       REM              AXT OP,4                                        F0018820
       REM              SXD NDSEL,4                                     F0018830
       REM              TSX NONDT,4                                     F0018840
       REM                                                              F0018850
       REM              WHERE                                           F0018860
       REM              OP = 1 THROUGH 6 FOR SDNL...BSF                 F0018870
       REM              (WEF SELECT HANDLED UNIQUELY)                   F0018880
       REM                                                              F0018890
       REM                                                              F0018900
 NONDT SXA     NONDX,4        SAVE LINKAGE.                             F0018910
       TSX    (NDATA,4       *TAPE FUNCTION NOW INACTIVE,               F0018920
 NDSEL PZE     TAPNO,T,**     PERFORM NON-DATA OPERATION.               F0018930
 NONDX AXT     **,4                                                     F0018940
       TRA     1,4           *RETURN.                                   F0018950
       TTL     ON-LINE ROUTINES                                         F0018960
       REM ROUTINE TO PRINT ON-LINE VIA IOEX                            F0018970
       REM                                                              F0018980
 PRNT0 CLS     L(00)          PREPARE FOR VARIOUS TYPE LINES.           F0018990
       STO     PRNT6          .                                         F0019000
       STO     PRNT6+1        .                                         F0019010
       AXT     -3,T           SET TAPENO INDEX TO PRINTER UNIT POINTER. F0019020
       STL     TAPRX          CHECK PRIOR ACTIVITY AND PREPARE          F0019030
       NOP     *+2            FOR THIS CALL TO PRINT.                   F0019040
       TRA     ONLNC          .                                         F0019050
       PDX     ,4             IS WORD COUNT ZERO..                      F0019060
       TXL     CHKTO,4,0     *IF ZERO, EXIT.                            F0019070
       REM                                                              F0019080
       LDI     ONLIN          SET HISTORICAL FLAGS                      F0019090
       SIL     3              FOR PRINTER FUNCTION                      F0019100
       STI     UNITT+12,C     AND SAVE IN PROPER CHANNEL TABLE.         F0019110
       PAI                    PLACE PARAMETER IN INDICATORS.            F0019120
       LDQ*    CURTP+1                                                 $F0019130
       STQ     ERAS1          SAVE PROGRAM CONTROLCHARACTER            $F0019140
       LFT     400000         IS PROGRAM CONTRAL REQUIRED              $F0019150
       TRA     PRNT3          NO                                       $F0019160
       ZAC                    YES, SPACE UNDER PARTIAL PROG CONTROL     F0019170
       LLS     5              OBTAIN CONTROL CHARACTER.                 F0019180
       TMI     PRNT2          SINGLE SPACE (B) ..                       F0019190
       AXT     DBLSP,2        NO, DOUBLE SPACE (0) ..                   F0019200
       TZE     *+4            YES.                                      F0019210
       AXT     EJECT,2        .                                         F0019220
       LBT                    NO, EJECT (1)..                           F0019230
       TXL     PRNT4,4,12     NO, MUST BE SPACE SUPPRESS (+).           F0019240
       SXD     PRNT6,2        SET CARRIAGE CONTROL PARAMETER            F0019250
       ZAC                                                              F0019260
       STP     PRNT6                                                    F0019270
 PRNT2 CLS     L(16)          RESET FIRST CHARACTER                     F0019280
       LRS     5              OF BCD MESSAGE                            F0019290
       STQ*    CURTP+1        TO BLANK.                                 F0019300
 PRNT3 PIA     12                                                       F0019310
       TNX     PRNT5,4,12     SPLIT LINE INTO CYCLE BLOCKS (1-72).      F0019320
       SXD     PRNT6+2,4      SET COUNT OF SECOND CYCLE BLOCK (73-120)  F0019330
       STO     PRNT6+1        SET BASE OF FIRST CYCLE BLOCK.            F0019340
       ADM     PRNT3          SET BASE+12 FOR BASE OF                   F0019350
       STA     PRNT6+2        SECOND CYCLE BLOCK.                       F0019360
       AXT     12+SUPRS,4     SET SPACE SUPPRESS FOR                    F0019370
       SXD     PRNT6+1,4      SECOND CYCLE BLOCK.                       F0019380
       TRA     PRINT                                                    F0019390
       SPACE   3                                                        F0019400
 PRNT4 TXI     *+1,4,SUPRS    SUPPRESS SPACING ON SHORT LINE.           F0019410
       STI     PRNT6+2        SET MESSAGE ORIGIN,                       F0019420
       SXD     PRNT6+2,4      SET WORD COUNT AND SPR EXIT PARAMETER.    F0019430
       TRA     PRINT                                                    F0019440
       REM                                                              F0019450
 PRNT5 SLW     PRNT6+2        72 OR LESS CHARACTERS IN MESSAGE,         F0019460
       REM                                                              F0019470
 PRINT TSX    (PROUT,4       *PRINT MESSAGE ON-LINE VIA IOEX.           F0019480
       PZE     3                                                        F0019490
 PRNT6 QZE     ,,**           PRE-PRINT CARRIAGE CONTROL.               F0019500
       QZE     **,,**         MAY BE MZE 0, AND IGNORED.                F0019510
       PZE     **,,**                                                   F0019520
       SPACE   3                                                        F0019530
       LDQ     ERAS1          RESTORE CONTROL CHARACTER                 F0019540
       STQ*    CURTP+1        TO ORIGINAL BCD TEXT.                     F0019550
       TRA     CHKTO         *RETURN TO CALLER (2,4).                   F0019560
       EJECT                                                            F0019570
       REM                                                              F0019580
       REM PUNCH CARDS ON-LINE                                          F0019590
       REM                                                              F0019600
 PNCH0 AXT     -2,T           LOAD PUNCH UNIT POINTER.                  F0019610
       STL     TAPRX          GET PARAMETERS.                           F0019620
       NOP     *+2                                                      F0019630
       TRA     ONLNC          .                                         F0019640
       SPACE   3                                                        F0019650
       LDI     ONLIN          SET HISTORICAL FLAG                       F0019660
       SIL     1              FOR ON-LINE                               F0019670
       STI     UNITT+12,C     PUNCH.                                    F0019680
       REM                                                              F0019690
       PDX     ,4                                                       F0019700
       TXH     *+3,4,0        IS WORD COUNT ZERO..                      F0019710
 PDELY TCOA    *              YES, DELAY TILL FINISHED.                 F0019720
       TRA     CHKTO         *EXIT.                                     F0019730
       PAI                                                              F0019740
       LFT     100000         HOLLERITH..                               F0019750
       TRA     PNCH4          YES, USE IOEX ROUTINES.                   F0019760
       SLW     PNCH4+3        SAVE I/O COMMAND.                         F0019770
       LAC     SYSPCH,4       PICK UP LOCATION OF PUNCH UCB.            F0019780
       CLA     *+1            SET PRIORITY WORD.                        F0019790
       BRN     ,,*+5                                                    F0019800
       STO     1,4                                                      F0019810
       TSX     (ACTIV,4       ENTER ACTIV FOR IMMEDIATE REQUEST.        F0019820
       MZE     SYSPCH                                                   F0019830
       TRA     CHKTO          GO AWAY TILL SEL (+).                     F0019840
       SXA     PNCH6,4        SAVE LINKAGE.                             F0019850
       SXA     PNCH6+1,1                                                F0019860
       CAL     PNCH4+3        PICK UP I/O PARAMETER.                    F0019870
       PAI                                                              F0019880
 PUNSL WPU     **             SELECT PUNCH                              F0019890
       LNT     400000         IS COLUMN BINARY REQUESTED..              F0019900
       TRA     PNCH3          NO, PUNCH ROW BINARY.                     F0019910
       REM                                                              F0019920
       ADD     L(12)          YES, PREPARE TO ROTATE IMAGE.             F0019930
       STA     BBUFF                                                    F0019940
       ADD     L(12)                                                    F0019950
       STA     BBUFF+1                                                  F0019960
       STL     QPNC3          SET SELECT INSTRUCTION TO PUNCH OUT       F0019970
 PNCH2 NOP     IOCBI          FROM COLUMN BINARY BUFFER                 F0019980
       AXT     12,4           PREPARE TO PUNCH 12 ROWS ON COL BIN CARD  F0019990
       CAL     CBMSK          PICK UP CONVERSION MASK                   F0020000
 PNCH1 SLW     ERAS2          SAVE CURRENT POSITION OF MASK             F0020010
       AXT     2,2            SET LEFT HALF                             F0020020
       STZ     PLEFT+2,2      CLEAR THIS HALF ROW                       F0020030
       AXT     12,1           PREPARE TO ROTATE 12 WORDS OF ROW IMAGE   F0020040
       CAL*    BBUFF+2,2      GET NEXT WORD                             F0020050
       ANA     ERAS2          EXTRACT BITS FOR THIS COLUMN              F0020060
       ARS     12,4           ASSEMBLE ROW IMAGE OF COLUMN              F0020070
       LGR     1                                                        F0020080
       ARS     11                                                       F0020090
       LGR     1                                                        F0020100
       ARS     11                                                       F0020110
       LGR     1                                                        F0020120
       CAL     PLEFT+2,2      PICK UP PARTIALLY CONVERTED ROW           F0020130
       LGL     3              APPEND THIS ROW BITS IN COLUMN IMAGE      F0020140
       SLW     PLEFT+2,2                                                F0020150
       TIX     PNCH1+4,1,1    IS ROW BINARY WORD COUNT EXHAUSTED        F0020160
       TIX     PNCH1+2,2,1    YES, IS RIGHT HALF DONE                   F0020170
       XEC     QPNC3          YES, PUNCH LEFT, RIGHT HALVES THIS ROW    F0020180
 PUNLL LCHA    PNCH2          DELAY TILL ROW IS PUNCHED (COMMAND RESET).F0020190
       TNX     PNCH5,4,1      IS COLUMN BINARY ROW COUNT EXHAUSTED..    F0020200
       CAL     ERAS2          NO, REPOSITION CONVERSION MASK            F0020210
       ALS     1                                                        F0020220
       TRA     PNCH1          LOOP FOR MORE.                            F0020230
       REM                                                              F0020240
 PNCH3 STO     IORBI          INITIALIZE I/O COMMAND                    F0020250
       STL     QPNC3          SET SELECT INSTRUCTION TO PUNCH OUT       F0020260
       NOP     IORBI          FROM ROW BINARY BUFFER                    F0020270
       XEC     QPNC3          PUNCH OUT CARD                            F0020280
       TRA     PNCH5+1       *RETURN AS THOUGH THROUGH SEL(-).          F0020290
       REM                                                              F0020300
 PNCH4 STO     *+3            SET PARAMETER FOR IOEX                    F0020310
       TSX    (PUNCH,4        TO PUNCH HOLLERITH                        F0020320
       PZE     1                                                        F0020330
       PZE     **,,**         CARDS ON-LINE.                            F0020340
       TRA     CHKTO         *RETURN TO CALLER (2,4).                   F0020350
       REM                                                              F0020360
       REM                                                              F0020370
 PNCH5 RCHA    L(00)          STOP PUNCH.                               F0020380
       LAC     SYSPCH,4       RESET PRIORITY WORD.                      F0020390
       STZ     1,4            .                                         F0020400
 PNCH6 AXT     **,4           RETURN TO IOEX, NON-DATA                  F0020410
       AXT     **,1                                                     F0020420
       TRA     2,4           *RETURN.                                   F0020430
       REM                                                              F0020440
 QPNC3 RCHA*   **             RESET LOAD CHAN. COMM. FOR PUNCH(INDIRECT)F0020450
 CBMSK PZE     4097,,64       MASK TO CONVERT ROW TO COLUMN BIN. IMAGE  F0020460
 IORBI IOCT    **,,**         COMMAND FOR ROW BINARY OUTPUT BUFFER      F0020470
 IOCBI IOCT    PLEFT,,2       COMMAND FOR COL. BINARY OUTPUT BUFFER     F0020480
 PLEFT PZE                    COLUMN BINARY, LEFT-HALF BUFFER           F0020490
       PZE                    COLUMN BINARY, RIGHT-HALF BUFFER          F0020500
 BBUFF PZE     **,1           POINTERS TO LEFT/RIGHT                    F0020510
       PZE     **,1           HALVES OF CARD TO BE ROTATED.             F0020520
       TTL     SNAPSHOTS                                                F0020530
       REM                                                              F0020540
       REM     SNAPSHOT ROUTINE                                         F0020550
       REM                                                              F0020560
 SNAP0 AXT     SNPTAP,T       RESTORE SNAP INDEX POINTER               $F0020570
       ZET     (SNCT)         ARE THERE ANY PREVIOUS SNAPSHOTS         $F0020580
       TRA     SNAP2          YES                                      $F0020590
       AXT     .REW.,4        NO, MAKE SURE SNAP-TAPE                  $F0020600
       SXD     NDSEL,4        IS REWOUND                               $F0020610
       TSX     NONDT,4                                                 $F0020620
       LDI*    (FGBX)         LOAD MONITOR FLAGS                       $F0020630
       SIR     2              SET UP SNAP-SHOT FLAG                    $F0020640
       STI*    (FGBX)         SAVE MONITOR FLAGS                       $F0020650
       LDI     CURTP+1        RESTORE (SNAP) INDICATOR                 $F0020660
 SNAP2 CAL     CURTP+3        IS THERE A LABEL FOR THIS SNAP-SHOT      $F0020670
       TNZ     *+2            YES                                       F0020680
       CAL     BLNKS          NO, SUPPLY BLANKS                         F0020690
       SLW     SNAPA+2        FOR HEADING                               F0020700
       CLA     (SNCT)         INCREMENT SNAP COUNTER                    F0020710
       ADD     L(01)          .                                         F0020720
       STO     (SNCT)                                                   F0020730
       TSX     (DECVA,4      *CONVERT THIS SNAP NUMBER TO BCD,          F0020740
       STQ     SNAPA+5        INSERT IN HEADING,                        F0020750
 SNAP3 TSX     IOPRQ,4                                                  F0020760
       MZE     SNAPA,2                                                  F0020770
       STL     DGSV4          SET RETURN FROM DUMP SAVE ROUTINE         F0020780
       NOP     *+2                                                      F0020790
       TRA     DGSV0         *SAVE CONSOLE                              F0020800
       TSX     IOPRQ,4        WRITE CONSOLE.                            F0020810
       MZE     SNAPB,2                                                  F0020820
       LXD     CURTP+2,4      LOAD PARAMETER COUNT.                     F0020830
       TXL     SNAP5,4,0      IS MERELY THE CONSOLE REQUESTED..         F0020840
 SNAP4 CLA     UNITT+3,C      NO, SOME CORE DUMPING IS REQUIRED.        F0020850
       STA     SNAPD          INITIALIZE I/O COMMAND LOAD POINT,        F0020860
       STD     SNAPD          AND WORD COUNT.                           F0020870
       SXA     *+6,4          SAVE LOOPER.                              F0020880
       TSX     IOPRQ,4       *WRITE OUT A BIT OF CORE.                  F0020890
       MZE     SNAPC,2        .                                         F0020900
       STL     CHKIX          DELAY ON THIS WRITE.                      F0020910
       NOP     *+2            .                                         F0020920
       TRA     CHKIO          .                                         F0020930
       AXT     **,4           RESTORE LOOPER.                           F0020940
       TXI     *+1,C,-1       BUMP TO NEXT SNAP PARAMETER.              F0020950
       TIX     SNAP4,4,1      CONTINUE SNAPPING.                        F0020960
 SNAP5 AXT     2,2            WRITE TWO EOFS.                           F0020970
       TSX     (NDATA,4       .                                         F0020980
       PZE     TAPNO-SNPTAP,,.WEF.                                      F0020990
       NOP                    EOT ON WEFING, SAVE FLAG FOR LATER.       F0021000
       TIX     *-3,2,1        SECOND EOF.                               F0021010
 SNAP6 TSX     (NDATA,4       BACKSPACE OVER SECOND EOF.                F0021020
       PZE     TAPNO-SNPTAP,,.BSR.                                      F0021030
       TSX     (PROUT,4      *PRINT SNAPPY COMMENT.                     F0021040
       PZE     1              .                                         F0021050
       PZE     SNAPA+2,,4     .                                         F0021060
       STL     DGLD2          SET RETURN FROM RELOADING ROUTINE.        F0021070
       NOP     *+2                                                     $F0021080
       TRA     DGLD0         *RESTORE CONSOLE.                          F0021090
       LDI     CURTP+1                                                 $F0021095
       TRA     TAPEX                                                   $F0021096
 SNAPA IORT    *+1,,5                                                   F0021100
       BCI     5,1     LABELX   SNAPSHOT                                F0021110
 SNAPB IORT    DGSV5+1,,9                                               F0021120
 SNAPC IOCP    *+1,,1                                                   F0021130
 SNAPD IORT    **,,**                                                   F0021140
       TTL     DIAGNOSTICS                                              F0021150
       TITLE                                                            F0021160
       REM     I/O DIAGNOSTIC ROUTINES                                  F0021170
       REM                                                              F0021180
       REM     ON ENTRY TO ERROR ROUTINE, THE FOLLOWING DATA EXIST      F0021190
       REM     UNITT+16,1 (ADDR) CONTAINS HISTORIC CALLING LINKAGE      F0021200
       REM     CURTP+5    (ADDR) CURRENT, IF NO HISTORIC                F0021210
       REM     UNITT+13,1 (DECR) CONTAINS HISTORIC LOGICAL TAPE NUMBER  F0021220
       REM     CURTP+2    (DECR) CURRENT, IF NO HISTORIC                F0021230
       REM     XR2               CONTAINS LOGICAL TAPE NUMBER           F0021240
       REM     XR1               CONTAINS UNITT INDEX                   F0021250
       REM                                                              F0021260
       REM                                                              F0021270
FLERM  PZE     *+1,,ERAS1                                               F0021280
       PZE     *+1,,4                                                   F0021290
       BCI     4,ILLEGAL OP CODE FOR IOP.                               F0021300
       REM                                                              F0021310
RWERR  CLA     RWERM          GET PRINT PARAMETERS                      F0021320
       TRA     IODGA          GO TO TAPE DIAGNOSTIC                     F0021330
       REM                                                              F0021340
RWERM  PZE     *+1,,ERAS1                                               F0021350
       PZE     *+1,,5                                                   F0021360
       BCI     5,OUTPUT TAPE MAY NOT BE REWOUND.                        F0021370
       REM                                                              F0021380
       REM                                                              F0021390
MEFER  CLA     MEFEM          EOF MISSING SKIPPING FILES.               F0021400
       TRA     IODGB          GO TO TAPE DIAGNOSTIC.                    F0021410
       REM                                                              F0021420
 MEFEM PZE     *+1,,MEFEM+7                                            $F0021430
       PZE     *+1,,6                                                  $F0021440
       BCI     5,NO EOF SENSED FILE SPACING TO                         $F0021450
       BCI     1,                                                       F0021460
       REM                                                              F0021470
TEFER  CLA     TEFEM          UNEXPECTED EOF SENSED.                    F0021480
       LFT     (SKIP)         READING OR SPACING.                       F0021490
       CLA     TEFRM          SPACING.                                  F0021500
       TRA     IODGB          GO TO TAPE DIAGNOSTIC.                    F0021510
       REM                                                              F0021520
 TEFEM PZE     *+1,,TEFEM+4   LOC. OF PRINT PARAMETERS,,LABEL INSERT   $F0021530
       PZE     *+1,,3                                                  $F0021540
       BCI     3, EOF SENSED                                           $F0021550
       REM                                                              F0021560
 TEFRM PZE     *+1,,TEFRM+7                                             F0021570
       PZE     *+1,,6                                                   F0021580
       BCI     5,EOF SENSED SPACING RECORDS TO                          F0021590
       BCI     1,                                                       F0021600
       REM                                                              F0021610
 TPNRR PXA     ,T             GET ILLEGAL TAPE NUMBER.                  F0021620
       TSX     (DECVA,4      *CONVERT TO BCD                            F0021630
       STQ     TPNRM+3        SET IN COMMENT                           $F0021640
       CLA     TPNRM          GET PARAMETERS.                           F0021650
       TRA     IODG0          GO TO ON-LINE DIAGNOSTIC.                 F0021660
       REM                                                              F0021670
TPNRM  PZE     *+1,,ERAS1                                               F0021680
       PZE     *+1,,5                                                  $F0021690
       BCI     5, TAPE        NOT IN I/O TABLE.                        $F0021700
       REM                                                              F0021710
       REM                                                              F0021720
       REM                    INCORRECT TAPE LABEL READ.                F0021730
POSRR  CLA     POSRM          GET PARAMETERS.                           F0021740
       TRA     IODGB          GO TO TAPE DIAGNOSTIC.                    F0021750
       REM                                                              F0021760
POSRM  PZE     *+1,,POSRM+7   LOC. OF PRINT PARAMETERS,,LABEL INSERT    F0021770
       PZE     *+1,,6                                                   F0021780
       BCI     6, POSITIONING ERROR READING                             F0021790
       REM                                                              F0021800
 ETERR CLA     ETERM          END OF TAPE SENSED.                       F0021810
       TRA     IODGB          GO TO TAPE DIAGNOSTIC.                    F0021820
       REM                                                              F0021830
 ETERM PZE     *+1,,ETERM+5   LOC.OF PRINT PARAMETERS,,LABEL INSERT    $F0021840
       PZE     *+1,,4                                                  $F0021850
       BCI     4,END OF TAPE SENSED                                    $F0021860
       REM                                                              F0021870
       REM                                                              F0021880
       REM                                                              F0021890
WTXRM  PZE     *+1,,ERAS1     LOC. OF PRINT PARAMETERS,,NO LABEL.       F0021900
       PZE     *+1,,9                                                   F0021910
       BCI     9, MORE THAN 30 REDUNDANCY CHECKS WRITING THIS TAPE.     F0021920
       REM                                                              F0021930
RDXRM  PZE     *+1,,ERAS1     LOC. OF PRINT PARAMETERS,, NO LABEL.      F0021940
       PZE     *+1,,7                                                   F0021950
       BCI     7,OVER 50 REDUNDANCIES READING THIS TAPE.                F0021960
       REM                                                              F0021970
RDPRR  CLA     RDPRM          PERMANENT READ REDUNDANCY.                F0021980
       LDI     (SCHU)         RELOAD INDICATORS (NOW HAVE ERROR COUNTS).F0021990
       TRA     IODGB          GO TO TAPE DIAGNOSTIC.                    F0022000
       REM                                                              F0022010
 RDPRM PZE     *+1,,RDPRM+7                                             F0022020
       PZE     *+1,,6                                                   F0022030
       BCI     5,PERMANENT REDUNDANCY READING                           F0022040
       BCI     1,                                                       F0022050
       REM                                                              F0022060
 SKPRR CLA     SKPRM          PICK UP ERROR MESSAGE FOR SKIPPING.       F0022070
       TRA     IODGB          GO TO TAPE DIAGNOSTIC.                    F0022080
       REM                                                              F0022090
SKPRM  PZE     *+1,,SKPRM+6   LOC. OF PRINT PARAMETERS,,LABEL INSERT.  $F0022100
       PZE     *+1,,5                                                  $F0022110
       BCI     5,REDUNDANCY CHECK SPACING                              $F0022120
       REM                                                              F0022130
EXPOS  PZE     *+1,,ERAS1     LOC. OF PRINT PARAMETERS,, NO LABEL.      F0022140
       PZE     *+1,,5         PRINT PARAMETERS.                         F0022150
       BCI     5, EXCESSIVE POSITIONING ERRORS.                         F0022160
       REM                                                              F0022170
NODAT  LDI     IOSVR+4        PICK UP INDICATORS FOR CURRENT COMMAND   $F0022171
       STI     (SCHU)         AND PLACE FOR POSSIBLE CHECK.            $F0022172
       CLA     NDATA          GET PARAMETERS.                          $F0022180
       TRA     IODGA          GO TO DIAGNOSTIC.                         F0022190
       REM                                                              F0022200
 NDATA PZE     *+1,,NDATA+3   LOC) OF PRINT PARAMETERS,,LABEL INSERT.   F0022210
       PZE     *+1,,5         PRINT PARAMETERS.                         F0022220
       BCI     5,             DOES NOT EXIST.                           F0022230
       REM                                                              F0022240
       REM RETURN ON PRIOR ERROR OR I/O RELATED ERROR (TPER)            F0022250
       REM                                                              F0022260
DGRET  LXA     CURTP+5,4      GET LOCATION OF CALLER.                   F0022270
       LDQ     BLNKS                                                    F0022290
       ZET     CURTP+3        IS THERE A LABEL.                         F0022300
       LDQ     CURTP+3        GET LABEL.                                F0022310
       CAL     BLNKS          INSERT A BLANK AFTER THE LABEL.           F0022320
       LGL     6                                                        F0022330
       STA     TPERM+2                                                  F0022340
       XCL                                                              F0022350
       ORA     BLANK          INSERT BLANK AFTER LABEL.                 F0022360
       SLW     CURTP+3        SAVE LABEL.                               F0022370
       CAL     BLNKS                                                    F0022380
       RFT     777777         IS THERE AN ERROR WORD.                   F0022390
       CAL*    SKIP0          YES, GET IT AND                           F0022400
       TNZ     *+2            IF NONE EXISTS,                           F0022410
       CAL     BLNKS          SUPPLY BLANKS.                            F0022420
       SLW     TPERM+4        INSERT IT INTO THE COMMENT.               F0022430
       RIR     777777        DELETE ANY CONFUSING FLAGS                $F0022433
       STI     (SCHU)        SAVE INDICATORS AS THOUGH TAPE CALL       $F0022435
       CLA     TPERM          GET PRINT PARAMETERS.                     F0022440
       TRA     IODGB          GO TO TAPE DIAGNOSTIC.                    F0022450
       REM                                                              F0022460
TPERM  PZE     *+1,,TPERM+3                                             F0022470
       PZE     *+1,,5                                                   F0022480
       BCI     5,      LABEL XXXXXX ERROR.                              F0022490
       REM                                                              F0022500
       EJECT                                                            F0022510
       REM     ROUTINE FOR ON-LINE CLASS OF ERRORS.                     F0022520
       REM                                                              F0022530
IODG0  LDI     L(00)          RESET ANY CONFUSING FLAGS.                F0022540
       RIL     400000         SET CANNOT IGNORE BIT.                    F0022550
IODG1  SXA     IODG2,4        SAVE IR4.                                 F0022560
       TSX     IODPA,4        PRINT ANY PRIOR MESSAGE.                  F0022570
       TSX     DGETA,4        GET NEW INFORMATION.                      F0022580
       TSX     DGST0,4        SET UP NEW MESSAGE.                       F0022590
       AXT     (PROUT,4       SET HEADING PARAMETER FOR ON-LINE.        F0022600
       SXA     IODPC,4        .                                         F0022610
       TSX     IODPB,4        PRINT NEW MESSAGE.                        F0022620
       AXT     IODPC+4,4      RESTORE HEADING TO LONG TAPE TYPE.        F0022630
       SXA     IODPC,4        .                                         F0022640
IODG2  AXT     **,4           RELOAD IR4.                               F0022650
       LFT     (DATA)+(SKIP)  IS THIS REALLY A TAPE ERROR..             F0022660
       TRA     IODG3          YES, QUIT.                                F0022670
       LFT     3                                                        F0022680
       TRA     TAPR9         *RETURN TO EXECUTOR.                       F0022690
       REM   ENTRY FOR ERRORS WHICH HAVE NO ERROR RETURN                F0022700
IODG3  TSX     IODPB,4        PRINT ERROR COMMENT.                      F0022710
       STL     DGSV4          SAVE MEMORY AND                           F0022720
       NOP     MECL0          THEN GO TO MACHINE ERROR RECORD.          F0022730
       TRA     DGSVA                                                    F0022740
       REM                                                              F0022750
       REM *************************************************************F0022760
       REM                                                              F0022770
       REM     I/O DIAGNOSTIC ROUTINE FOR TAPE ERRORS.                  F0022780
       REM                                                              F0022790
IODGA  RIR     777777         DELETE ANY CONFUSING FLAGS.               F0022800
IODGB  SXA     IODGC,4        SAVE IR4.                                 F0022810
       TSX     IODPA,4        SAVE REGISTERS AND PRINT ANY PRIOR MESS.  F0022820
       TSX     DGETA,4        GET NEW INFORMATION.                      F0022830
IODGE  TSX     DGST0,4        SET UP MESSAGE.                           F0022840
       STZ     NOENT          RESET TABLE SEARCH FLAG.                  F0022850
       LXD     DGST2,T        RELOAD LOGICAL TAPE NUMBER.               F0022860
       ZAC                    .                                        $F0022870
       STD     TERCT,T        RESET WRITE ERROR COUNT                  $F0022871
       STD     TERCT-NTAPE,T  RESET READ ERROR COUNT                   $F0022880
       LDI     (SCHU)         GET INDICATORS (FLAGS).                   F0022890
       LNT     (DATA)         IS THIS TAPE DATA TRANSMIT..              F0022900
       TRA     IODGM          NO, SKIP POSTIONING PROCEDURE.            F0022910
       RFT     REDUN          IS THIS AN RTT ERROR..                    F0022920
       TRA     *+3            YES.                                      F0022930
       TSX     (NDATA,4       NO, POSITION TAPE INFRONT OF ERROR RECORD.F0022940
       PZE     TAPNO,T,.BSR.                                            F0022950
       CLA     TAPNO,T        CHECK FOR OUTPUT TAPE FLAG.               F0022960
       TPL     IODGM          IS THIS AN OUTPUT TAPE..                  F0022970
       LNT     (DATA)+(W...)  YES,IS THIS WRITE OPERATION..             F0022980
       TRA     IODGM          NO.                                       F0022990
       TSX     (NDATA,4       YES,WRITE EOF                            $F0023000
       PZE     TAPNO,T,.WEF.                                           $F0023010
       NOP                    END OF TAPE RETURN.                      $F0023020
       TRA     IODGK          WRITE OPERATOR MESSAGE                (25)F0023030
       TSX     (NDATA,4                                                 F0023040
       PZE     TAPNO,T,.RUN.                                            F0023050
       TSX     IODPB,4        PRINT ERROR COMMENT.                      F0023060
 IODGH TXH     IODGI,4,0      MAY WE SWITCH TO SYSOU2 (SET BY INITT)..  F0023070
       CAL     SYSOU2         YES, SWITCH SYSUNI POINTERS               F0023080
       LDQ     SYSOU1         .                                         F0023090
       SLW     SYSOU1         .                                         F0023100
       STQ     SYSOU2         .                                         F0023110
       STA     TAPNO-MLSTAP   RESET IOPU POINTER.                       F0023120
 IODGI TSX     (PROUT,4       PRINT PREDETERMINED MESSAGE.              F0023130
       PZE     1                                                        F0023140
       PZE     IOSWT,,6+DBLSP                                          $F0023150
       TSX     IODPB,4        RESTORE REGISTERS.                        F0023160
       TXH     *+2,4,-1       DOES THIS CHANGE REUIRE HALT..            F0023170
       TSX     (PAUSE,4                                                $F0023180
 IODGC AXT     **,4           .                                         F0023190
       TRA     TAPR6+1       *REWRITE.                                  F0023200
 IOSWT BCI     6,CHANGE TAPE, PRESS START TO CONT.                     $F0023210
       REM     (MESSAGE SET BY INITT)                                   F0023220
       REM                                                              F0023230
 IODGM RNT     EOTAP          WAS ERROR END OF TAPE CONDITION..         F0023240
       TRA     *+3            NO                                        F0023250
       NZT     IODGR          YES, IS THERE AN ERROR RETURN         (25)F0023260
       TRA     IODGN          NO, REWIND TAPE                       (25)F0023270
       LFT     (SKIP)         IS THIS A SKIPPING OPERATION..            F0023280
       TRA     IODGF          YES, NO POSSIBLE ERROR OPTIONS.           F0023290
       LFT     (TPER)         NO, IS THIS A (TPER) CALL..               F0023300
       TRA     IODGD          YES.                                      F0023310
       CLA     IODGR          IS THERE AN ERROR RETURN.                 F0023320
       TZE     IODG3         *NO.                                       F0023330
       STA     ERRET,T        SAVE RETURN ADDRESS.                      F0023340
       TPL     IODGQ          TRANSFER IF MESSAGE IS TO BE PRINTED.     F0023350
       LFT     (W...)         IS THIS A READ OPERATION..                F0023360
       TRA     IODGQ-1        NO.                                       F0023370
       RNT     REDUN          IS THIS REDUNDANCY ERROR..                F0023380
       TRA     IODGQ          NO.                                       F0023390
       CAL     TERRT,T        REDUCE COUNTER,                           F0023400
       SUB     L(01)          THIS MAY BE A READ IN WRONG MODE          F0023410
       SLW     TERRT,T                                                  F0023420
       STZ     IODPD          RESET PRINT PARAMETERS.                   F0023430
IODGQ  LDC     DGST2,4        LOAD LOGICAL TAPE NUMBER.                 F0023440
       CAL     (SCHU),4       GET LAST ADDRESS+1 FROM SCHX.             F0023450
       ALS     18             MOVE TO DECREMENT FIELD AND SAVE.         F0023460
       STO     (SCHU),4                                                 F0023470
       CLA     (SCHU)         GET ERROR FLAGS AND SAVE WITH SCHX.       F0023480
       STA     (SCHU),4                                                 F0023490
       TSX     IODPB,4        PRINT ERROR COMMENT.                      F0023500
       TRA     TAPR9          RETURN TO EXECUTOR.                       F0023510
       REM                                                              F0023520
IODGD  CLA     CURTP+5        GET INDICATOR WORD.                       F0023530
       TPL     IODG3         *SHOULD RETURN BE MADE TO CALLER, NO.      F0023540
       TSX     IODPB,4        PRINT ERROR COMMENT.                      F0023550
       TRA     TAPEX                                                    F0023560
       REM                                                              F0023570
IODGF  CLA     IODGR          RECALL ERROR RETURN.                      F0023580
       RFT     REDUN          IS THIS REDUNDANCY ERROR..                F0023590
       TRA     *+4            YES.                                      F0023600
       TZE     IODG3         *IS THERE AN ERROR RETURN, NO.             F0023610
       STA     ERRET,T        YES, SAVE ERROR RETURN ADDRESS.           F0023620
       TRA     IODGQ          CONTINUE WITH ACCEPT PROCEDURE.           F0023630
       TPL     *+3            REDUN ERROR, SHOULD MESSAGE BE PRINTED..  F0023640
       STZ     IODPD          NO. RESET PRINT PARAMETERS.               F0023650
       TRA     *+5            RETURN TO CALLER.                         F0023660
       TSX     IODPB,4        PRINT ERROR COMMENT.                      F0023670
       TSX     (PROUT,4       PRINT TRAILER.                            F0023680
       PZE     1                                                        F0023690
       PZE     IODGG,,5       -TAPE POSITIONING ERROR MAY RESULT       $F0023700
       TSX     IODPB,4        RESTORE REGISTERS.                        F0023710
       TRA     CHSKX          RETURN TO EXECUTOR                        F0023720
       REM                                                              F0023730
IODGR  PZE                    STORAGE FOR ERROR RETURN INFORMATION.     F0023740
       REM                                                              F0023750
 IODGG BCI     5, POSITIONING ERROR MAY RESULT                         $F0023760
       REM                                                              F0023770
       REM *************************************************************F0023780
       REM                                                              F0023790
       REM     I/O DIAGNOSTIC CALLER TO PRINT ROUTINE.                  F0023800
       REM                                                              F0023810
IODPA  STO     IODPI          SAVE REGISTERS.                           F0023820
       STI     IODPI+1                                                  F0023830
       STQ     IODPI+2                                                  F0023840
       SXA     IODPE,1                                                  F0023850
       SXA     IODPF,2                                                  F0023860
IODPB  SXA     IODPG,4        SAVE CALLING LINKAGE.                     F0023870
       NZT     IODPD          IS THERE A PRIOR MESSAGE.                 F0023880
       TRA     IODPE          NO.                                       F0023890
 IODPC TSX     *+4,4          (SET TO TSX (PROUT,4 IF NEED BE)          F0023900
       PZE     1              SHORT MESSAGE PRINTER.                    F0023910
       PZE     IODPN,,5                                                $F0023920
       TRA     *+5            .                                         F0023930
       TSX     (PROUT,4      *YES, PRINT HEADING.                       F0023940
       PZE     2                                                        F0023950
       PZE     IODPN,,12+SUPRS                                          F0023960
       PZE     IODFN+1,,2                                              $F0023970
       TSX     (PROUT,4       PRINT ERROR COMMENT.                      F0023980
       PZE     2                                                        F0023990
IODPD  PZE     **,,**                                                   F0024000
 IODPH PZE     **,,**         (COND. IGNORED/NOT IGNORED)               F0024010
       STZ     IODPD          RESET COMMENT PARAMETERS,                 F0024020
IODPE  AXT     **,1           RELOAD REGISTERS                          F0024030
IODPF  AXT     **,2           TO INITIAL CONDITION.                     F0024040
IODPG  AXT     **,4           LOAD CALLING LINKAGE.                     F0024050
       CLA     IODPI                                                    F0024060
       LDI     IODPI+1                                                  F0024070
       LDQ     IODPI+2                                                  F0024080
       TRA     1,4            RETURN TO CALLER.                         F0024090
       REM                                                              F0024100
IODPI  PZE                    STORAGE FOR AC.                           F0024110
       PZE                    STORAGE FOR INDICATORS.                   F0024120
       PZE                    STORAGE FOR MQ.                           F0024130
IODPJ  PZE     *+1,,5                                                   F0024140
       BCI     5, CONDITION CAN NOT BE IGNORED.                         F0024150
 IODPK PZE     *+1,,3                                                  $F0024160
       BCI     3,CONDITION IGNORED.                                    $F0024170
IODPN  BCI     2, RECORD NO.                                            F0024180
 IODPO BCI     2,      , LOC.                                          $F0024190
 IODPP BCI     4,      .  ERROR ON LOG.                                $F0024200
 IODPQ BCI     2,      , TAPE                                          $F0024210
IODPR  BCI     1,                                                       F0024220
IODFN  BCI     3,,  FUNCTION                                            F0024230
       REM                                                              F0024240
       REM *************************************************************F0024250
       REM                                                              F0024260
       REM     SUBROUTINE TO GET INFORMATION FROM THE CURRENT           F0024270
       REM     BUFFER OR THE HISTORICAL BUFFER.                         F0024280
       REM                                                              F0024290
DGETA  LFT     077777         IS THIS TXI DIAG,,0.                      F0024300
       LFT     004000         NO. IS THIS (TPER).                       F0024310
       REM                                                              F0024320
       TRA     DGETB          YES. GET CURRENT BUFFER.                  F0024330
       NZT     UNITT+12,C     IS OPERATION IN HISTORIC BUFFER..         F0024340
       TRA     DGETB          NO.                                       F0024350
       CLA     UNITT+11,C     YES, GET ERRET,T3.                        F0024360
       STO     IODGR                                                    F0024370
       LDQ     UNITT+16,C     GET  CALLER LOCATION,, FORTRAN RECORD     F0024380
       LDI     UNITT+13,C          TAPE ADDRESS,,LOGICAL TAPNO          F0024390
       CAL     UNITT+14,C          LABEL.                               F0024400
       TRA     1,4           *RETURN TO CALLER.                         F0024410
DGETB  CLA     CURTP          GET INFORMATION FROM CURRENT BUFFER.      F0024420
       STO     IODGR          SAVE ERRET,T3.                            F0024430
       LDI     CURTP+2        GET TAPE ADDRESSES.                       F0024440
       CAL     CURTP+3        GET LABEL.                                F0024450
       LDQ     CURTP+5        GET LOCATION OF CALLER AND FORTRAN RECORD.F0024460
       TRA     1,4           *RETURN TO CALLER.                         F0024470
       REM                                                              F0024480
       REM *************************************************************F0024490
       REM                                                              F0024500
       REM     SUBROUTINE TO SET UP DIAGNOSTIC HEADING.                 F0024510
       REM                                                              F0024520
DGST0  SXA     DGST1,4        SAVE LINKAGE.                             F0024530
       STQ     DGST2+1        SAVE INFORMATION IN CASE OF REDUNDANCY.   F0024540
       STI     DGST2          SENSE INDICATORS.                         F0024550
       LDC     IODPI,4        LOAD ADDRESS FOR INSERTING LABEL.         F0024560
       TNZ     *+2            IS THERE A LABEL.                         F0024570
       CAL     BLNKS          NO LABEL, SET TO BLANKS.                  F0024580
       SLW     0,4            SET LABEL IN MESSAGE.                     F0024590
       PIA                    SAVE LOGICAL TAPE NUMBER.                 F0024600
       LGR     15             CONVERT PHYSICAL                          F0024610
       TSX     (BCD5X,4       TAPE ADDRESS TO OCTAL.                    F0024620
       SLW     IODPR          SET IN HEADING.                           F0024630
       LXD     DGST2,4        GET LOGICAL TAPE ADDRESS.                 F0024640
       PXA     ,4                                                       F0024650
       TSX     (DECVA,4       CONVERT TO BCD                            F0024660
       STQ     IODPQ          SAVE IN HEADING.                          F0024670
       CAL     SYSFC,2        PLACE SYSUNI SYMBOLIC                     F0024680
       SLW     IODFN+2        NAME IN MESSAGE.                          F0024690
       LXD     DGST2+1,4      GET FORTRAN RECORD NUMBER.                F0024700
       PXA     ,4             CONVERT RECORD NUMBER TO BCD.             F0024710
       TSX     (DECVA,4       .                                         F0024720
       LGL     30             .                                         F0024730
       ALS     6              .                                         F0024740
       ORA     P0INT          .                                         F0024750
       LGL     6              .                                         F0024760
       SLW     IODPO          SET IN HEADING.                           F0024770
       LAC     DGST2+1,4      GET LOCATION OF CALLER                    F0024780
       PXA     ,4             IN TRUE NUMBER.                           F0024790
       LGR     15             CONVERT CALLER LOCATION                   F0024800
       TSX     (BCD5X,4       TO OCTAL BCD.                             F0024810
       SLW     IODPP          INSERT IN HEADING.                        F0024820
       CLA*    IODPI          SET PRINT PARAMETERS                      F0024830
       STO     IODPD          FOR COMMENT.                              F0024840
       LDI     IODPI+1        LOAD FIRST WORD OF CALLING SEQUENCE       F0024850
       CLA     IODPJ          OR (SCHU).                                F0024860
       LFT     400000         CAN ERROR BE IGNORED.                     F0024870
       CLA     IODPK          YES.                                      F0024880
       LNT     (SKIP)         IS THIS A SPACING OPERATION..             F0024890
       TRA     *+3            NO.                                       F0024900
       RFT     REDUN          YES, IS THIS REDUNDANCY..                 F0024910
       CLA     IODPK          YES, CONDITION CAN BE IGNORED.            F0024920
       STO     IODPH          SET PARAMETERS.                           F0024930
DGST1  AXT     **,4           LOAD CALLING LINKAGE.                     F0024940
       TRA     1,4            RETURN TO CALLER.                         F0024950
       REM                                                              F0024960
DGST2  PZE     **,,**         TAPE ADDRESSES.                           F0024970
       PZE     **,,**         CALLER,,FORTRAN RECORD.                   F0024980
       REM                                                              F0024990
       REM *************************************************************F0025000
       EJECT                                                            F0025010
       REM     ROUTINE TO CALL MACHINE ERROR RECORD OR                  F0025020
       REM     SOURCE PROGRAM ERROR RECORD.                             F0025030
       REM                                                              F0025040
 SECL0 AXT     11,4           SKIP TO SOURCE ERROR REC (TRA TO LSECL...)F0025050
       TRA     *+2                                                      F0025060
 MECL0 AXT     10,4           SKIP TO MACH. ERROR REC (TRA TO LMECL...) F0025070
       SXA     MECL2-1,4                                                F0025080
       TSX     CLOSO,4        ELIMINATE ANY HANGING ERRORS.             F0025090
       LDC     SYSLDR,2       PICK UP CURRENT FILE POSITION             F0025100
       CAL     2,2            OF SYSTEM TAPE                            F0025110
       PDX     ,1                                                       F0025120
       LDC     SYSPOS,2       PICK UP INITIAL FILE POSITION.            F0025130
       SXD     *+1,2                                                    F0025140
       TXI     *+1,1,**       SUBTRACT INITIAL FROM CURRENT FILE        F0025150
       TXI     *+1,1,1        ASSURE THAT AT LEAST ONE FILE IS BKSPCD.  F0025160
       SXD     MECL2-3,1      SAVE FILE DIFFERENCE.                     F0025170
       AXT     3,2                                                      F0025180
 MECL1 TSX     (TAPE),4       POSITION SYSTEM TAPE TO                   F0025190
       PZE     MECL2,2,(SKBP) MER OR SER.                               F0025200
       PZE     ,,SYSTAP                                                 F0025210
       TIX     MECL1,2,1                                                F0025220
       CAL     *+2            GET SENSE LITE OFF OPERATION AND OR INTO  F0025230
       ORS     (MSLN)         ERROR FLAG CELL TO GET APPROPRIATE SLN.   F0025240
       SLF                    MAKE SURE LITES ARE OFF.                  F0025250
       XEC     (MSLN)         TURN ON SIGNAL LITE.                      F0025260
 LSECL TSX     (LOAD),4,1    *READ MACH/SOURCE ERROR REC (DISK LOAD SER)F0025270
       BCI     1,9F1100                                                 F0025280
       BCI     1,9F1000                                                 F0025290
       REM                                                              F0025300
       MZE     ,,**           NFILES BACKSPACE                          F0025310
       PZE     ,,1            GET OVER EOF MARK                         F0025320
       PZE     **             NRECORD FORWARD SPACE                     F0025330
 MECL2 SYN     *                                                        F0025340
       REM                                                              F0025350
       REM *************************************************************F0025360
       REM                                                              F0025370
       REM     ROUTINE TO SAVE MACHINE CONFIGURATION.                   F0025380
       REM                                                              F0025390
DGSVA  SXD     DGSVD,4        SET SWITCH                                F0025400
       REM    ENTRY FOR SNAPSHOTS                                       F0025410
DGSV0  SXA     DGSV2,4        SAVE IR4.                                 F0025420
       STI     DGSV5          SAVE SENSE INDICATORS.                    F0025430
       CLA     (LODR)         SAVE RECORD NUMBER.                       F0025440
       STO     DGLD3                                                    F0025450
       AXT     3,4            SAVE LOCATIONS                            F0025460
       CLA     3,4            0,1 AND 2 IN CASE                         F0025470
       STO     DGLD3,4        A DUMP IS TAKEN.                          F0025480
       TIX     *-2,4,1                                                  F0025490
       AXT     8,4                                                      F0025500
       CLA     IOSEX+3,4      SAVE REGISTERS                            F0025510
       STO     DGSV6+1,4      FROM SAVER ROUTINE                        F0025520
       TIX     *-2,4,1                                                  F0025530
       LDI     DGSV6-3        LOAD SENSE LIGHT FLAGS                    F0025540
       TQO     *+2            IS MQ OVERFLOW ON                         F0025550
       RIR     400            NO, TURN OFF BIT.                         F0025560
       DCT                    IS DIVIDE CHECK LIGHT ON                  F0025570
       SIR     200            YES, SET BIT 28 ON.                       F0025580
       CAL     L(08)          LOAD SENSE LIGHT BIT.                     F0025590
       AXT     4,4            INITIALIZE LITE COUNTER.                  F0025600
       SLT     5,4            TEST SENSE LITE.                          F0025610
       OAI                    SET APPROPRIATE BIT IF LITE IS OFF.       F0025620
       ALS     1              SHIFT BIT FOR NEXT TEST.                  F0025630
       TIX     *-3,4,1       *ALL LITES TESTED, NO CONTINUE.            F0025640
       CAL     D(01)          INITIALIZE BIT IN AC FOR SS TEST.         F0025650
       SWT     7,4            TEST SENSE SWITCHES 6 THROUGH 1.          F0025660
       OAI                    SENSE SWITCH UP, OR APPROPRIATE BIT.      F0025670
       ALS     1              SHIFT BIT FOR NEXT TEST.                  F0025680
       TXI     *+1,4,1        INCREMENT INDEX FOR NEXT TEST.            F0025690
       TXL     *-4,4,6       *ALL SENSE SWITCHES TESTED, NO CONTINUE.   F0025700
       STI     DGSV6-3        SAVE SENSE LIGHT FLAGS                    F0025710
       ENK                    SAVE CONSOLE KEYS                         F0025720
       STQ     DGSV6-8                                                  F0025730
DGSVD  TXH     DGSV2,4,**     IS THIS TERMINAL CALL                     F0025740
       ZSD     *-1            YES, RESET SWITCH.                        F0025750
       TSX     CLOSO,4        ELIMINATE ANY HANGING ERRORS.             F0025760
       TSX     (TAPE),4       DUMP A CORE BUFFER FOR DIAGNOSTIC.    (31)F0025770
       MZE     DGSV7,,(WBNC)                                        (31)F0025780
 DGSV1 PZE     ,,SINTAP                                             (31)F0025790
       PZE     *+4            ERROR RETURN ADDRESS                  (31)F0025800
       TSX     (TAPE),4       BACKSPACE OVER DUMP                   (31)F0025810
       MZE     BKSRC,,(SKBP)                                        (31)F0025820
       PZE     ,,SINTAP                                             (31)F0025830
DGSV2  AXT     **,4           RESTORE IR4.                              F0025840
       LDI     DGSV5          RESTORE SENSE INDICATORS.                 F0025850
DGSV4  TRA*    **             RETURN TO CALLER.                         F0025860
       REM                                                              F0025870
DGSV5  PZE                    TEMPORARY STORAGE FOR SENSE INDICATORS.   F0025880
       PZE     **             KEYS                                      F0025890
       PZE     **             SENSE INDICATORS                          F0025900
       PZE     **             MQ                                        F0025910
       PZE     **             LOGICAL AC                                F0025920
       PZE     **             ALGEBRAIC AC                              F0025930
       PZE     **             FLAGS FOR LIGHTS, SWITCHES, INDICATORS    F0025940
       PZE     **             INDEX REGISTER 1                          F0025950
       PZE     **             INDEX REGISTER 2                          F0025960
DGSV6  PZE     **             INDEX REGISTER 4                          F0025970
 DGSV7 IORT    (DORG),,8700   I/O COMMAND FOR DUMP+DIAGNOSTIC       (31)F0025980
       REM                                                          (31)F0025990
       REM                                                          (31)F0026000
       REM     ROUTINE TO RESTORE CONSOLE AND MEMORY.               (31)F0026020
       REM                                                          (31)F0026030
 DGLDH STL     DGLD2          SET RETURN TO FINAL HALT.             (31)F0026040
       NOP     DGLD2+1                                              (31)F0026050
       TSX     (TAPE),4      RESTORE MEMORY FROM DUMP TAPE          (31)F0026060
       MZE     DGSV7,,(RBNC)                                        (31)F0026070
 DGLD1 PZE     ,,SINTAP                                             (31)F0026080
       PZE     *+4            ERROR RETURN ADDRESS                  (31)F0026090
       TSX     (TAPE),4       BACKSPACE OVER DUMP FOR               (31)F0026100
       MZE     BKSRC,,(SKBP)  FURTHER USE OF DUMP TAPE              (31)F0026110
       PZE     ,,SINTAP                                             (31)F0026120
       REM    ENTRY POINT FOR (REST),DIAG,SNAP                          F0026130
DGLD0  LDI     DGSV6-3        LOAD SENSE LIGHT FLAGS                    F0026140
       CAL     L(01)          PREPARE TO TURN MQ OVERFLOW ON.           F0026150
       RFT     400            WAS MQ OVERFLOW ON.                       F0026160
       FDP     SKIPF          YES, TURN IT BACK ON.                     F0026170
       RFT     200            WAS DIVIDE CHECK INDICATOR ON.            F0026180
       DVP     L(00)          YES, TURN IT BACK ON.                     F0026190
       CAL     L(04)          LOAD TEST BIT FOR SENSE LITES.            F0026200
       AXT     5,4            INITIALIZE COUNTER/MODIFIER.              F0026210
       TIO     *+2           *SHOULD LITE BE TURNED ON, NO.             F0026220
       SLN     5,4            YES. (FIRST TIME EXECUTE AS SLF)          F0026230
       ALS     1              SHIFT TEST BIT TO NEXT POSITION.          F0026240
       TIX     *-3,4,1       *ALL BITS TESTED, NO CONTINUE.             F0026250
       AXT     8,4            MOVE MACHINE REGISTERS                    F0026260
       CLA     DGSV6+1,4      INTO RELOADING BUFFER                     F0026270
       STO     IOSEX+3,4                                                F0026280
       TIX     *-2,4,1                                                  F0026290
       STL     IORLX          SET RELOADING RETURN ADDRESS.             F0026300
       NOP     *+2                                                      F0026310
       TRA     IOSEX          RELOAD MACHINE REGISTERS.                 F0026320
DGLD2  TRA*    **             RETURN TO CALLER.                         F0026330
       HTR     *              THIS IS THE END.                          F0026340
       REM                                                              F0026350
       OCT     ,,             CELLS FOR SAVING 0,1, AND 2.              F0026360
DGLD3  PZE                    CELL FOR SAVING FORTAN RECORD NUMBER      F0026370
       REM                                                              F0026380
       REM *************************************************************F0026390
       REM                                                              F0026400
       REM     ROUTINE TO CLOSE OUT CHANNELS AND TAPES.                 F0026410
       REM                                                              F0026420
 CLOSO LXD     TAPNO,2                                                  F0026430
       STZ     ERRET,2        CLEAR ERROR RETURN BUFFER FOR THIS TAPE.  F0026440
       TIX     *-1,2,1                                                  F0026450
       AXT     16*NCHAN,2     CLEAR HISTORIC TABLE OF HISTORIC INSTR,   F0026460
       STZ     UNITT+12,2                                               F0026470
       TIX     *-1,2,16                                                 F0026480
       TRA     1,4            RETURN TO CALLER.                         F0026490
       REM                                                              F0026500
       TTL     GENERAL ERASIBLE                                         F0026510
 ERAS1 PZE                                                              F0026520
 ERAS2 PZE                                                              F0026530
 ERASA PZE                    ERASIBLE - ADDRESS                        F0026540
 ERASD PZE                    ERASIBLE - DECREMENT                      F0026550
 ERASR PZE                    FULL WORD ERASIBLE (EFFECTIVE ADDR COMP)  F0026560
 TPNUM PZE                    CURRENT LOGICAL TAPENO, BITS 3-5.         F0026570
       TTL     GENERAL CONSTANTS                                        F0026580
 ONLIN PZE     ,,1024         FLAG FOR ON-LINE ACTIVITY                 F0026590
 BKSRC MZE     1              BACKSPACE ONE RECORD COMMAND              F0026600
 INITL PZE     1,,1           INITIAL TAPE POSITION CONSTANT            F0026610
 L(SL) PZE     ,,IOPSL        LOCATION OF SELECT ROUTINE.               F0026620
 BLNKS BCI     1,             BLANK WORD                                F0026630
 BLANK BCI     1,00000        BLANK CHARACTER                           F0026640
 P0INT BCI     1,   00.       DECIMAL POINT WITH BLANKS.                F0026650
 TGADD PZE     -2,-1,0        ADD 1 TO FILE CT., SUB. 2 FROM REC. CT(29)F0026660
 ADMSK PZE     -1             MASK FOR ADDRESS                          F0026670
 DCMSK PZE     ,,-1           MASK FOR DECREMENT.                       F0026680
 LSEVN OCT     377777000000   MASK TO DUMMY UP THE (SCHU) ENTRY         F0026690
 L(00) PZE     0                                                        F0026700
 L(01) PZE     1                                                        F0026710
 L(04) PZE     4                                                        F0026720
 L(05) PZE     5                                                        F0026730
 L(08) PZE     8                                                        F0026740
 L(12) PZE     12                                                       F0026750
 L(16) PZE     16                                                       F0026760
 D(01) PZE     ,,1            DECREMENT ONE                             F0026770
       BCI     1,SYSCK2       THESE                                     F0026780
       BCI     1,SYSCK1       SYMBOLIC                                  F0026790
       BCI     1,SYSUT2       NAMES                                     F0026800
       BCI     1,SYSPP1       MUST                                      F0026810
       BCI     1,SYSOU1       BE                                        F0026820
       BCI     1,SYSIN1       IN                                        F0026830
       BCI     1,SYSUT1       SAME                                      F0026840
       BCI     1,SYSUT4       ORDER                                     F0026850
       BCI     1,SYSUT3       AS                                        F0026860
       BCI     1,SYSLB1       IOPU.                                     F0026870
 SYSFC SYN     *                                                        F0026880
       TTL     TABLES                                                   F0026890
       TITLE                                                            F0026900
       REM                                                              F0026910
 CURTP QZE     **            ERROR RETURN (SIGN =                       F0026920
       PZE     **,,**         CURRENT INSTRUCTION,,FLAGS           (1)  F0026930
       QZE     **,,**         TAPE ADDRESS,,LOGICAL TAPENO         (2)  F0026940
       BCI     1,             LABEL                                (3)  F0026950
       PZE     **,,**         LOGICAL FILE,,LOGICAL RECORD         (4)  F0026960
       QZE     **,,**         CALLER LOCATION,,FORTRAN RECORD      (5)  F0026970
       REM                                                              F0026980
 LABEL BCI     1,             BUFFER FOR TAPE LABEL (LAST THREE CELLS   F0026990
       PZE     **,,**         IN CURTP/UNITT)                           F0027000
       PZE     **,,**                                                   F0027010
       EJECT                                                            F0027020
       REM     CHANNEL DATA TABLES                                      F0027030
       REM                                                              F0027040
       REM     HISTORICAL TABLE CHANNEL (C) TO A                        F0027050
       DUP     16,NCHAN                                                 F0027060
       QZE     **             HISTORIC SELECT (MODE).              (1)  F0027070
       IOSP    *+6,,3         I/O COMMAND TO READ/WRITE LABEL.     (2)  F0027080
       PZE     **,,**         I/O COMMAND TO READ/WRITE RECORD     (3)  F0027090
       PZE     **,,**         DITTO                                (4)  F0027100
       PZE     **,,**         DITTO                                (5)  F0027110
       PZE     **,,**         DITTO                                (6)  F0027120
       PZE     **,,**         DITTO                                (7)  F0027130
       BCI     1,             LABEL READ/WRITTEN.                  (8)  F0027140
       PZE     **,,**         LOGICAL FILE,, LOGICAL RECORD R/W.   (9)  F0027150
       PZE     **,,**         CALLER LOCATION,, FORTRAN RECORD W. (10)  F0027160
       PZE     **             ERROR RETURN                        (11)  F0027170
       PZE     **,,**         HISTORIC INSTRUCTION,,FLAGS         (12)  F0027180
       PZE     **,,**         TAPE ADDRESS,,LOGICAL TAPE NUMBER   (13)  F0027190
       BCI     1,             LABEL                               (14)  F0027200
       PZE     **,,**         LOGICAL FILE,,LOGICAL RECORD        (15)  F0027210
       QZE     **,,**         CALLER LOCATION,,FORTRAN RECORD     (16)  F0027220
 UNITT SYN     *-1                                                      F0027230
       REM                                                              F0027240
       REM     TABLE OF CURRENT TAPE POSITIONS.                         F0027250
       REM      RECORD POSITION,, FILE POSITION                         F0027260
       DUP     1,NTAPE-1                                                F0027270
       QZE     1,,1           LOGICAL TAPES NTAPE TO 1                  F0027280
       PZE     2,,1           SYSTEM TAPE PICKS UP AT SPACER RECORD.    F0027290
 POINT SYN     *                                                        F0027300
       REM                                                              F0027310
       REM     TABLE OF ERROR RETURNS FOR EACH LOGICAL TAPE             F0027320
       DUP     1,NTAPE                                                  F0027330
       PZE     **             LOGICAL TAPE NTAPE TO 1.                  F0027340
 ERRET PZE     **             ONLINE ACTIVITY                           F0027350
       REM                                                              F0027360
       REM     TABLE OF READ ERROR COUNTS                               F0027370
       DUP     1,NTAPE                                                  F0027380
       PZE     **,,**         LOGICAL TAPE NTAPE TO 1.                  F0027390
 TERTT SYN     *                                                        F0027400
       REM                                                              F0027410
       REM     TABLE OF WRITE ERROR COUNTS                              F0027420
       DUP     1,NTAPE                                                  F0027430
       PZE     **,,**         LOGICAL TAPE NTAPE TO 1.                  F0027440
 TERCT SYN     *              CUMULATIVE ERROR COUNT,,RECORD ERROR COUNTF0027450
       REM                                                              F0027460
       REM     TABLE OF READ TAPE USAGE                                 F0027470
       REM      RECORD COUNT,, NOISE RECORD COUNT                       F0027480
       DUP     1,NTAPE                                                  F0027490
       PZE     **,,**         LOGICAL TAPE NTAPE TO 1                   F0027500
 TERRT SYN     *                                                        F0027510
       REM                                                              F0027520
       REM     TABLE OF WRITE TAPE USAGE                                F0027530
       REM      RECORD COUNT,, NOISE RECORD COUNT                       F0027540
       DUP     1,NTAPE                                                  F0027550
       PZE     **,,**         LOGICAL TAPE NTAPE TO 1                   F0027560
 TERST SYN     *                                                        F0027570
       REM                                                              F0027580
       REM     DICTIONARY OF DATA ON TAPE                               F0027590
       DUP     2,TABSZ/2                                                F0027600
       PZE                    BCD LABEL                                 F0027610
       PZE                    TAPNO-FILE,,RECORD                        F0027620
 TABLE SYN     *                                                        F0027630
       EJECT                                                            F0027640
       REM *************************************************************F0027650
 CDBUF BSS     26                                                       F0027660
       REM                                                              F0027670
 ROBUF SYN     CDBUF          ROTATED ROW BINARY TAPE IMAGE BUFFER.     F0027680
       REM                                                              F0027690
       REM *************************************************************F0027700
       REM                                                              F0027710
PATCH2 SXA     *+7,4              STORE LOCATION                       $F0027720
       AXT     5,4                LOAD MAX I/O SEQUENCE COUNT          $F0027721
       STI     ERASE              SAVE INDICATORS                      $F0027722
       LDI     **,4               MOVE I/O (OR SNAP SHOT) LIST         $F0027723
       LFT     700000             DO NOT ALLOW IOCD                    $F0027724
       TRA     *+2                IF IOCD CHANGE TO IOCT               $F0027725
       SIL     500000                                                  $F0027726
       STI     **,4                                                    $F0027727
       TIX     *-5,4,1                                                 $F0027728
       LDI     ERASE              RELOAD INDICATORS                    $F0027729
       TRA     TAPE1+4            CONTINUE                             $F0027730
 ERASE PZE                                                             $F0027731
PATCH3 SXD     *+2,C              SET LOCATION AT                      $F0027732
       AXT     UNITT+11,4         UNITT+11 MINUS                       $F0027733
       TIX     *+1,4,**           C(C) CHANNEL POINTER,                $F0027734
       SXA     TAPE2+4,4          STORE IT, POINT TO                   $F0027735
       TXI     *+1,4,6            UNITT+17, AND                        $F0027736
       SXA     TAPE2+2,4          STORE IT.                            $F0027737
       AXT     6,4                .                                    $F0027738
       TRA     TAPE2+1            GO BACK IN LINE                      $F0027739
 IOPTC EQU     *                  PATCH SPACE HERE TO IOPUN            $F0027740
       REM                                                              F0027750
       REM                                                              F0027760
       TTL     IOPU                                                     F0027770
       REM LOGICAL/FUNCTIONAL EQUIVALENCE TABLE                         F0027780
       REM                                                              F0027790
       REM      FUNCTION      FORTRAN LOGICAL TAPE                      F0027800
       REM                                                              F0027810
 IOPUN ORG     TOPIOP-20                                                F0027820
       LBL     9FIOPU,X                                                 F0027830
       PZE     SYSUAV,1,3     16        B                               F0027840
       PZE     SYSUAV,0,3     15        A                               F0027850
       PZE     SYSUAV,1,2     14        B                               F0027860
       PZE     SYSUAV,0,2     13        A                               F0027870
       PZE     SYSUAV,1,1     12        B                               F0027880
       PZE     SYSUAV,0,1     11        A                               F0027890
       PZE     SYSCK2         10        A                               F0027900
       PZE     SYSCK1         9         A                               F0027910
       PZE     SYSUT2         8         B                               F0027920
       PZE     SYSPP1         7         B                               F0027930
       MZE     SYSOU1         6         A                               F0027940
       PZE     SYSIN1         5         A                               F0027950
       PZE     SYSUT1         4         A                               F0027960
       PZE     SYSUT4         3         B                               F0027970
       PZE     SYSUT3         2         B                               F0027980
       PZE     SYSLB1         1         A                               F0027990
 TAPNO PZE     0,,NTAPE       DENSITY,,NUMBER OF LOGICAL TAPES          F0028000
       PZE     SYSCRD         ON-LINE CARD READER                       F0028010
       PZE     SYSPCH         ON-LINE CARD PUNCH                        F0028020
       PZE     SYSPRT         ON-LINE PRINTER                           F0028030
       END     -1                                                       F0028040
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