Source Code

These source-code files were from the printout at the MIT Museum, with many thanks to Deborah Douglas, the Museum's Curator of Science and Technology, for releasing it to us. The printout was digitally photographed by Paul Fjeld. A team of volunteers transcribed the source code manually from these images or, where appropriate, modified already-transcribed but similar source Luminary 131 (Apollo 13) source code to agree with the images from the printout. Note that the page images presented online are of reduced quality, and that higher-quality images are available. Report any conversion errors or legibility problems in page images to info@sandroid.org. Notations on the program listing read, in part:

	GAP:  ASSEMBLE REVISION 001 OF AGC PROGRAM LMY99 BY NASA 2021112-061
	20'35 OCT. 28,1968
Note that the date is the date of the printout, not the date of the program revision.

054967,000002:                                                                                                  ## Copyright:   Public domain.
054968,000003:                                                                                                  ## Filename:    AGC_BLOCK_TWO_SELF_CHECK.agc
054969,000004:                                                                                                  ## Purpose:     Part of the source code for Luminary 1A build 099.
054970,000005:                                                                                                  ##              It is part of the source code for the Lunar Module's (LM)
054971,000006:                                                                                                  ##              Apollo Guidance Computer (AGC), for Apollo 11.
054972,000007:                                                                                                  ## Assembler:   yaYUL
054973,000008:                                                                                                  ## Contact:     Onno Hommes <ohommes@cmu.edu>.
054974,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo.
054975,000010:                                                                                                  ## Pages:       1284-1293
054976,000011:                                                                                                  ## Mod history: 2009-05-27 OH   Transcribed from page images.
054977,000012:                                                                                                  ##              2016-12-17 RSB  Proofed text comments with octopus/ProoferComments
054978,000013:                                                                                                  ##                              and corrected the errors found.
054979,000014:                                                                                                  ##              2017-01-28 RSB  WTIH -> WITH.
054980,000015:                                                                                                  ##
054981,000016:                                                                                                  ## This source code has been transcribed or otherwise adapted from
054982,000017:                                                                                                  ## digitized images of a hardcopy from the MIT Museum.  The digitization
054983,000018:                                                                                                  ## was performed by Paul Fjeld, and arranged for by Deborah Douglas of
054984,000019:                                                                                                  ## the Museum.  Many thanks to both.  The images (with suitable reduction
054985,000020:                                                                                                  ## in storage size and consequent reduction in image quality as well) are
054986,000021:                                                                                                  ## available online at www.ibiblio.org/apollo.  If for some reason you
054987,000022:                                                                                                  ## find that the images are illegible, contact me at info@sandroid.org
054988,000023:                                                                                                  ## about getting access to the (much) higher-quality images which Paul
054989,000024:                                                                                                  ## actually created.
054990,000025:                                                                                                  ##
054991,000026:                                                                                                  ## Notations on the hardcopy document read, in part:
054992,000027:                                                                                                  ##
054993,000028:                                                                                                  ##      Assemble revision 001 of AGC program LMY99 by NASA 2021112-61
054994,000029:                                                                                                  ##      16:27 JULY 14, 1969 
054995,000030: 

Page 1284

054997,000032:                                                                                                  #  PROGRAM DESCRIPTION                           DATE   20 DECEMBER 1967
054998,000033:                                                                                                  #  PROGRAM NAME - SELF-CHECK                     LOG SECTION  AGC BLOCK TWO SELF-CHECK
054999,000034:                                                                                                  #  MOD NO - 1                                    ASSEMBLY SUBROUTINE UTILITYM REV 25
055000,000035:                                                                                                  #  MOD BY - GAUNTT
055001,000036: 
055002,000037:                                                                                                  #  FUNCTIONAL DESCRIPTION
055003,000038:                                                                                                  #        PROGRAM HAS TWO MAIN PARTS.  THE FIRST IS SELF-CHECK WHICH RUNS AS A ZERO PRIORITY JOB WITH NO CORE SET, AS
055004,000039:                                                                                                  #        PART OF THE BACK-UP IDLE LOOP.  THE SECOND IS SHOW-BANKSUM WHICH RUNS AS A REGULAR EXECUTIVE JOB WITH ITS OWN
055005,000040:                                                                                                  #        STARTING VERB.
055006,000041: 
055007,000042:                                                                                                  #        THE PURPOSE OF SELF-CHECK IS TO CHECK OUT VARIOUS PARTS OF THE COMPUTER AS OUTLINED BELOW IN THE OPTIONS.
055008,000043: 
055009,000044:                                                                                                  #        THE PURPOSE OF SHOW-BANKSUM IS TO DISPLAY THE SUM OF EACH BANK, ONE AT A TIME.
055010,000045: 
055011,000046:                                                                                                  #        IN ALL THERE ARE 7 POSSIBLE OPTIONS IN THIS BLOCK II VERSION OF SELF-CHECK.  MORE DETAIL DESCRIPTION MAY BE
055012,000047:                                                                                                  #        FOUND IN E-2065 BLOCK II AGC SELF-CHECK AND SHOW BANKSUM BY EDWIN D. SMALLY DECEMBER 1966, AND ADDENDA 2 AND 3.
055013,000048: 
055014,000049:                                                                                                  #        THE DIFFERENT OPTIONS ARE CONTROLLED BY PUTTING DIFFERENT NUMBERS IN THE SMODE REGISTER (NOUN 27).  BELOW IS
055015,000050:                                                                                                  #        A DESCRIPTION OF WHAT PARTS OF THE COMPUTER THAT ARE CHECKED BY THE OPTIONS, AND THE CORRESPONDING NUMBER, IN
055016,000051:                                                                                                  #        OCTAL, TO LOAD INTO SMODE.
055017,000052:                                                                                                  #                +-4             ERASABLE MEMORY
055018,000053:                                                                                                  #                +-5             FIXED MEMORY
055019,000054:                                                                                                  #                +-1,2,3,6,7,10  EVERYTHING IN OPTIONS 4 AND 5.
055020,000055:                                                                                                  #                -0              SAME AS +-10 UNTIL AN ERROR IS DETECTED.
055021,000056:                                                                                                  #                +0              NO CHECK, PUTS COMPUTER INTO THE BACKUP IDLE LOOP.
055022,000057: 
055023,000058:                                                                                                  #  WARNINGS
055024,000059:                                                                                                  #        USE OF E MEMORY RESERVED FOR SELF-CHECK (EVEN IN IDLE LOOP) AS TEMP STORAGE BY OTHER PROGRAMS IS DANGEROUS.
055025,000060:                                                                                                  #        SMODE SET GREATER THAN OCT 10 PUTS COMPUTER INTO BACKUP IDLE LOOP.
055026,000061: 
055027,000062:                                                                                                  #  CALLING SEQUENCE
055028,000063:                                                                                                  #        TO CALL SELF-CHECK KEY IN
055029,000064:                                                                                                  #                V 21 N 27 E     OPTION NUMBER E
055030,000065:                                                                                                  #        TO CALL SHOW-BANKSUM KEY IN
055031,000066:                                                                                                  #                V 91 E          DISPLAYS FIRST BANK
055032,000067:                                                                                                  #                V 33 E          PROCEED, DISPLAYS NEXT BANK
055033,000068: 
055034,000069:                                                                                                  #  EXIT MODES, NORMAL AND ALARM
055035,000070:                                                                                                  #        SELF-CHECK NORMALLY CONTINUES INDEFINITELY UNLESS THERE IS AN ERROR DETECTED.  IF SO + OPTION NUMBERS PUT
055036,000071:                                                                                                  #        COMPUTER INTO BACKUP IDLE LOOP, - OPTION NUMBERS RESTART THE OPTION.
055037,000072: 
055038,000073:                                                                                                  #        THE -0 OPTION PROCEEDS FROM THE LINE FOLLOWING THE LINE WHERE THE ERROR WAS DETECTED.
055039,000074: 
055040,000075:                                                                                                  #        SHOW-BANKSUM PROCEEDS UNTIL A TERMINATE IS KEYED IN (V 34 E).  THE COMPUTER IS PUT INTO THE BACKUP IDLE LOOP
055041,000076: 
055042,000077:                                                                                                  #  OUTPUT

Page 1285

055044,000079:                                                                                                  #        SELF-CHECK UPON DETECTING AN ERROR LOADS THE SELF-CHECK ALARM CONSTANT (01102) INTO THE FAILREG SET AND
055045,000080:                                                                                                  #        TURNS ON THE ALARM LIGHT.  THE OPERATOR MAY THEN DISPLAY THE THREE FAILREGS BY KEYING IN V 05 N 09 E.  FOR FURTHER
055046,000081:                                                                                                  #        INFORMATION HE MAY KEY IN V 05 N 08 E, THE DSKY DISPLAY IN R1 WILL BE ADDRESS+1 OF WHERE THE ERROR WAS DETECTED,
055047,000082:                                                                                                  #        IN R2 THE BBCON OF SELF-CHECK, AND IN R3 THE TOTAL NUMBER OF ERRORS DETECTED BY SELF-CHECK SINCE THE LAST MAN
055048,000083:                                                                                                  #        INITIATED FRESH START (SLAP1).
055049,000084: 
055050,000085:                                                                                                  #        SHOW-BANKSUM STARTING WITH BANK 0 DISPLAYS IN R1 THE BANK SUM (A +-NUMBER EQUAL TO THE BANK NUMBER), IN R2
055051,000086:                                                                                                  #        THE BANK NUMBER, AND IN R3 THE BUGGER WORD.
055052,000087: 
055053,000088:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
055054,000089:                                                                                                  #        ACCOMPLISHED BY FRESH START
055055,000090:                                                                                                  #                SMODE SET TO +0
055056,000091: 
055057,000092:                                                                                                  #  DEBRIS
055058,000093:                                                                                                  #        ALL EXITS FROM THE CHECK OF ERASABLE (ERASCHK) RESTORE ORIGINAL CONTENTS TO REGISTERS UNDER CHECK.
055059,000094:                                                                                                  #        EXCEPTION IS A RESTART.  RESTART THAT OCCURS DURING ERASCHK RESTORES ERASABLE, UNLESS THERE IS EVIDENCE TO DOUBT
055060,000095:                                                                                                  #        E MEMORY, IN WHICH CASE PROGRAM THEN DOES A FRESH START (DOFSTART).
055061,000096: 
055062,000097: 25,3770                                           BANK     25                                    
055063,000098: 43,2000                                           SETLOC   SELFCHEC                              
055064,000099: 43,2000                                           BANK                                           
055065,000100: 
055066,000101: 43,3232                                           COUNT*   $$/SELF                               
055067,000102: 43,3232     4753               SBIT1              EQUALS   BIT1                                  
055068,000103: 43,3232     4752               SBIT2              EQUALS   BIT2                                  
055069,000104: 43,3232     4751               SBIT3              EQUALS   BIT3                                  
055070,000105: 43,3232     4750               SBIT4              EQUALS   BIT4                                  
055071,000106: 43,3232     4747               SBIT5              EQUALS   BIT5                                  
055072,000107: 43,3232     4746               SBIT6              EQUALS   BIT6                                  
055073,000108: 43,3232     4745               SBIT7              EQUALS   BIT7                                  
055074,000109: 43,3232     4744               SBIT8              EQUALS   BIT8                                  
055075,000110: 43,3232     4743               SBIT9              EQUALS   BIT9                                  
055076,000111: 43,3232     4742               SBIT10             EQUALS   BIT10                                 
055077,000112: 43,3232     4741               SBIT11             EQUALS   BIT11                                 
055078,000113: 43,3232     4740               SBIT12             EQUALS   BIT12                                 
055079,000114: 43,3232     4737               SBIT13             EQUALS   BIT13                                 
055080,000115: 43,3232     4736               SBIT14             EQUALS   BIT14                                 
055081,000116: 43,3232     4735               SBIT15             EQUALS   BIT15                                 
055082,000117: 
055083,000118: 43,3232     4755               S+ZERO             EQUALS   ZERO                                  
055084,000119: 43,3232     4753               S+1                EQUALS   BIT1                                  
055085,000120: 43,3232     4752               S+2                EQUALS   BIT2                                  
055086,000121: 43,3232     6245               S+3                EQUALS   THREE                                 
055087,000122: 43,3232     4751               S+4                EQUALS   FOUR                                  
055088,000123: 43,3232     4756               S+5                EQUALS   FIVE                                  
055089,000124: 43,3232     6242               S+6                EQUALS   SIX                                   

Page 1286

055091,000126: 43,3232     4757               S+7                EQUALS   SEVEN                                 
055092,000127: 43,3232     4357               S8BITS             EQUALS   LOW8                                  #  00377
055093,000128: 43,3232     4771               CNTRCON            =        OCT50                                 #  USED IN CNTRCHK
055094,000129: 43,3232           00061        ERASCON1           OCTAL    00061                                 #  USED IN ERASCHK
055095,000130: 43,3233           01373        ERASCON2           OCTAL    01373                                 #  USED IN ERASCHK
055096,000131: 43,3234     5007               ERASCON6           =        OCT1400                               #  USED IN ERASCHK
055097,000132: 43,3234           01461        ERASCON3           OCTAL    01461                                 #  USED IN ERASCHK
055098,000133: 43,3235           01773        ERASCON4           OCTAL    01773                                 #  USED IN ERASCHK
055099,000134: 43,3236     5012               S10BITS            EQUALS   LOW10                                 #  01777, USED IN ERASCHK
055100,000135: 43,3236     5020               SBNK03             EQUALS   PRIO6                                 #  06000, USED IN ROPECHK
055101,000136: 43,3236     4350               -MAXADRS           =        HI5                                   #  FOR ROPECHK
055102,000137: 43,3236           00060        SIXTY              OCTAL    00060                                 
055103,000138: 43,3237           60017        SUPRCON            OCTAL    60017                                 #  USED IN ROPECHK
055104,000139: 43,3240           17777        S13BITS            OCTAL    17777                                 
055105,000140: 43,3241           25252        CONC+S1            OCTAL    25252                                 #  USED IN CYCLSHFT
055106,000141: 43,3242           52400        CONC+S2            OCTAL    52400                                 #  USED IN CYCLSHFT
055107,000142: 43,3243           76777        ERASCON5           OCTAL    76777                                 
055108,000143: 43,3244     5660               S-7                =        OCT77770                              
055109,000144: 43,3244     6112               S-4                EQUALS   NEG4                                  
055110,000145: 43,3244     7745               S-3                EQUALS   NEG3                                  
055111,000146: 43,3244     7746               S-2                EQUALS   NEG2                                  
055112,000147: 43,3244     7747               S-1                EQUALS   NEGONE                                
055113,000148: 43,3244     4754               S-ZERO             EQUALS   NEG0                                  
055114,000149: 
055115,000150: 43,3244  E3,1400                                  EBANK=   LST1                                  
055116,000151: 43,3244           01371        ADRS1              ADRES    SKEEP1                                
055117,000152: 43,3245           03336        SELFADRS           ADRES    SELFCHK                               #  SELFCHK RETURN ADDRESS.  SHOULD BE PUT
055118,000153:                                                                                                  #  IN SELFRET WHEN GOING FROM SELFCHK TO
055119,000154:                                                                                                  #  SHOWSUM AND PUT IN SKEEP1 WHEN GOING
055120,000155:                                                                                                  #  FROM SHOWSUM TO SELF-CHECK.
055121,000156: 
055122,000157: 43,3246           31360        PRERRORS           CA       ERESTORE                              #  IS IT NECESSARY TO RESTORE ERASABLE
055123,000158: 43,3247           00006                           EXTEND                                         
055124,000159: 43,3250           13257                           BZF      ERRORS                                #  NO
055125,000160: 43,3251           00006                           EXTEND                                         
055126,000161: 43,3252           31376                           DCA      SKEEP5                                
055127,000162: 43,3253           51377                           INDEX    SKEEP7                                
055128,000163: 43,3254           52001                           DXCH     0000                                  #  RESTORE THE TWO ERASABLE REGISTERS
055129,000164: 43,3255           34755                           CA       S+ZERO                                
055130,000165: 43,3256           55360                           TS       ERESTORE                              
055131,000166: 43,3257           00004        ERRORS             INHINT                                         
055132,000167: 43,3260           30002                           CA       Q                                     
055133,000168: 43,3261           55357                           TS       SFAIL                                 #  SAVE Q FOR FAILURE LOCATION
055134,000169: 43,3262           55363                           TS       ALMCADR                               #  FOR DISPLAY WITH BBANK AND ERCOUNT
055135,000170: 43,3263           25365                           INCR     ERCOUNT                               #  KEEP TRACK OF NUMBER OF MALFUNCTIONS.
055136,000171: 43,3264           05571        TCALARM2           TC       ALARM2                                
055137,000172: 43,3265           01102                           OCT      01102                                 #  SELF-CHECK MALFUNCTION INDICATOR
055138,000173: 43,3266           11362                           CCS      SMODE                                 
055139,000174: 43,3267           34755        SIDLOOP            CA       S+ZERO                                
055140,000175: 43,3270           55362                           TS       SMODE                                 

Page 1287

055142,000177: 43,3271           03336                           TC       SELFCHK                               #  GO TO IDLE LOOP
055143,000178: 43,3272           01357                           TC       SFAIL                                 #  CONTINUE WITH SELF-CHECK
055144,000179: 
055145,000180: 43,3273           10000        -1CHK              CCS      A                                     
055146,000181: 43,3274           13246                           TCF      PRERRORS                              
055147,000182: 43,3275           13246                           TCF      PRERRORS                              
055148,000183: 43,3276           10000                           CCS      A                                     
055149,000184: 43,3277           13246                           TCF      PRERRORS                              
055150,000185: 43,3300           00002                           TC       Q                                     
055151,000186: 
055152,000187: 43,3301           00006        SMODECHK           EXTEND                                         
055153,000188: 43,3302           23371                           QXCH     SKEEP1                                
055154,000189: 43,3303           03332                           TC       CHECKNJ                               #  CHECK FOR NEW JOB
055155,000190: 43,3304           11362                           CCS      SMODE                                 
055156,000191: 43,3305           03312                           TC       SOPTIONS                              
055157,000192: 43,3306           03303                           TC       SMODECHK   +2                         #  TO BACKUP IDLE LOOP
055158,000193: 43,3307           03312                           TC       SOPTIONS                              
055159,000194: 43,3310           25366                           INCR     SCOUNT                                
055160,000195: 43,3311           01371                           TC       SKEEP1                                #  CONTINUE WITH SELF-CHECK
055161,000196: 
055162,000197: 43,3312           65660        SOPTIONS           AD       S-7                                   
055163,000198: 43,3313           00006                           EXTEND                                         
055164,000199: 43,3314           63316                           BZMF     +2                                    #  FOR OPTIONS BELOW NINE.
055165,000200: 43,3315           03267        BNKOPTN            TC       SIDLOOP                               #  ILLEGAL OPTION.  GO TO IDLE LOOP.
055166,000201: 43,3316           25366                           INCR     SCOUNT                                #  FOR OPTIONS BELOW NINE.
055167,000202: 43,3317           64757                           AD       S+7                                   
055168,000203: 
055169,000204: 43,3320           50000                           INDEX    A                                     
055170,000205: 43,3321           03322                           TC       SOPTION1                              
055171,000206: 43,3322           01371        SOPTION1           TC       SKEEP1                                #  WAS TC+TCF
055172,000207: 43,3323           01371        SOPTION2           TC       SKEEP1                                #  WAS IN:OUT1
055173,000208: 43,3324           01371        SOPTION3           TC       SKEEP1                                #  WAS COUNTCHK
055174,000209: 43,3325           03337        SOPTION4           TC       ERASCHK                               
055175,000210: 43,3326           03520        SOPTION5           TC       ROPECHK                               
055176,000211: 43,3327           01371        SOPTION6           TC       SKEEP1                                
055177,000212: 43,3330           01371        SOPTION7           TC       SKEEP1                                
055178,000213: 43,3331           01371        SOPTON10           TC       SKEEP1                                #  CONTINUE WITH SELF-CHECK
055179,000214: 
055180,000215: 43,3332           00006        CHECKNJ            EXTEND                                         
055181,000216: 43,3333           23361                           QXCH     SELFRET                               #  SAVE RETURN ADDRESS WHILE TESTING NEWJOB
055182,000217: 43,3334           04635                           TC       POSTJUMP                              #  TO SEE IF ANY JOBS HAVE BECOME ACTIVE.
055183,000218: 43,3335           03214                           CADR     ADVAN                                 
055184,000219: 
055185,000220: 43,3336           03301        SELFCHK            TC       SMODECHK                              #  ** CHARLEY, COME IN HERE
055186,000221: 
055187,000222:                                                                                                  #  SKEEP7 HOLDS LOWEST OF TWO ADDRESSES BEING CHECKED.
055188,000223:                                                                                                  #  SKEEP6 HOLDS B(X+1).
055189,000224:                                                                                                  #  SKEEP5 HOLDS B(X).
055190,000225:                                                                                                  #  SKEEP4 HOLDS C(EBANK) DURING ERASLOOP AND CHECKNJ.
055191,000226:                                                                                                  #  SKEEP3 HOLDS LAST ADDRESS BEING CHECKED (HIGHEST ADDRESS).

Page 1288

055193,000228:                                                                                                  #  SKEEP2 CONTROLS CHECKING OF NON-SWITCHABLE ERASABLE MEMORY WITH BANK NUMBERS IN EB.
055194,000229:                                                                                                  #  ERASCHK TAKES APPROXMATELY 7 SECONDS
055195,000230: 
055196,000231: 43,3337           34753        ERASCHK            CA       S+1                                   
055197,000232: 43,3340           55372                           TS       SKEEP2                                
055198,000233: 43,3341           34755        0EBANK             CA       S+ZERO                                
055199,000234: 43,3342           54003                           TS       EBANK                                 
055200,000235: 43,3343           33234                           CA       ERASCON3                              #  01461
055201,000236: 43,3344           55377                           TS       SKEEP7                                #  STARTING ADDRESS
055202,000237: 43,3345           35012                           CA       S10BITS                               #  01777
055203,000238: 43,3346           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
055204,000239: 43,3347           03367                           TC       ERASLOOP                              
055205,000240: 
055206,000241: 43,3350           35007        E134567B           CA       ERASCON6                              #  01400
055207,000242: 43,3351           55377                           TS       SKEEP7                                #  STARTING ADDRESS
055208,000243: 43,3352           35012                           CA       S10BITS                               #  01777
055209,000244: 43,3353           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
055210,000245: 43,3354           03367                           TC       ERASLOOP                              
055211,000246: 
055212,000247: 43,3355           35007        2EBANK             CA       ERASCON6                              #  01400
055213,000248: 43,3356           55377                           TS       SKEEP7                                #  STARTING ADDRESS
055214,000249: 43,3357           33235                           CA       ERASCON4                              #  01773
055215,000250: 43,3360           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
055216,000251: 43,3361           03367                           TC       ERASLOOP                              
055217,000252: 
055218,000253: 43,3362           55372        NOEBANK            TS       SKEEP2                                #  +0
055219,000254: 43,3363           33232                           CA       ERASCON1                              #  00061
055220,000255: 43,3364           55377                           TS       SKEEP7                                #  STARTING ADDRESS
055221,000256: 43,3365           33233                           CA       ERASCON2                              #  01373
055222,000257: 43,3366           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
055223,000258: 
055224,000259: 43,3367           00004        ERASLOOP           INHINT                                         
055225,000260: 43,3370           30003                           CA       EBANK                                 #  STORES C(EBANK)
055226,000261: 43,3371           55374                           TS       SKEEP4                                
055227,000262: 43,3372           00006                           EXTEND                                         
055228,000263: 43,3373           51377                           NDX      SKEEP7                                
055229,000264: 43,3374           30001                           DCA      0000                                  
055230,000265: 43,3375           53376                           DXCH     SKEEP5                                #  STORES C(X) AND C(X+1) IN SKEEP6 AND 5.
055231,000266: 43,3376           31377                           CA       SKEEP7                                
055232,000267: 43,3377           55360                           TS       ERESTORE                              #  IF RESTART, RESTORE C(X) AND C(X+1)
055233,000268: 43,3400           54001                           TS       L                                     
055234,000269: 43,3401           24001                           INCR     L                                     
055235,000270: 43,3402           50000                           NDX      A                                     
055236,000271: 43,3403           52001                           DXCH     0000                                  #  PUTS OWN ADDRESS IN X AND X +1
055237,000272: 43,3404           51377                           NDX      SKEEP7                                
055238,000273: 43,3405           40001                           CS       0001                                  #  CS X+1
055239,000274: 43,3406           51377                           NDX      SKEEP7                                
055240,000275: 43,3407           60000                           AD       0000                                  #  AD X
055241,000276: 43,3410           03273                           TC       -1CHK                                 
055242,000277: 43,3411           31360                           CA       ERESTORE                              #  HAS ERASABLE BEEN RESTORED
055243,000278: 43,3412           00006                           EXTEND                                         

Page 1289

055245,000280: 43,3413           13437                           BZF      ELOOPFIN                              #  YES, EXIT ERASLOOP.
055246,000281: 43,3414           00006                           EXTEND                                         
055247,000282: 43,3415           51377                           NDX      SKEEP7                                
055248,000283: 43,3416           40001                           DCS      0000                                  #  COMPLEMENT OF ADDRESS OF X AND X+1
055249,000284: 43,3417           51377                           NDX      SKEEP7                                
055250,000285: 43,3420           52001                           DXCH     0000                                  #  PUT COMPLEMENT OF ADDRESS OF X AND X+1
055251,000286: 43,3421           51377                           NDX      SKEEP7                                
055252,000287: 43,3422           40000                           CS       0000                                  #  CS X
055253,000288: 43,3423           51377                           NDX      SKEEP7                                
055254,000289: 43,3424           60001                           AD       0001                                  #  AD X+1
055255,000290: 43,3425           03273                           TC       -1CHK                                 
055256,000291: 43,3426           31360                           CA       ERESTORE                              #  HAS ERASABLE BEEN RESTORED
055257,000292: 43,3427           00006                           EXTEND                                         
055258,000293: 43,3430           13437                           BZF      ELOOPFIN                              #  YES, EXIT ERASLOOP.
055259,000294: 43,3431           00006                           EXTEND                                         
055260,000295: 43,3432           31376                           DCA      SKEEP5                                
055261,000296: 43,3433           51377                           NDX      SKEEP7                                
055262,000297: 43,3434           52001                           DXCH     0000                                  #  PUT B(X) AND B(X+1) BACK INTO X AND X+1
055263,000298: 43,3435           34755                           CA       S+ZERO                                
055264,000299: 43,3436           55360                           TS       ERESTORE                              #  IF RESTART, DO NOT RESTORE C(X), C(X+1)
055265,000300: 43,3437           00003        ELOOPFIN           RELINT                                         
055266,000301: 43,3440           03332                           TC       CHECKNJ                               #  CHECK FOR NEW JOB
055267,000302: 43,3441           31374                           CA       SKEEP4                                #  REPLACES B(EBANK)
055268,000303: 43,3442           54003                           TS       EBANK                                 
055269,000304: 43,3443           25377                           INCR     SKEEP7                                
055270,000305: 43,3444           41377                           CS       SKEEP7                                
055271,000306: 43,3445           61373                           AD       SKEEP3                                
055272,000307: 43,3446           00006                           EXTEND                                         
055273,000308: 43,3447           13451                           BZF      +2                                    
055274,000309: 43,3450           03367                           TC       ERASLOOP                              #  GO TO NEXT ADDRESS IN SAME BANK
055275,000310: 43,3451           11372                           CCS      SKEEP2                                
055276,000311: 43,3452           03362                           TC       NOEBANK                               
055277,000312: 43,3453           25372                           INCR     SKEEP2                                #  PUT +1 IN SKEEP2.
055278,000313: 43,3454           30003                           CA       EBANK                                 
055279,000314: 43,3455           64743                           AD       SBIT9                                 
055280,000315: 43,3456           54003                           TS       EBANK                                 
055281,000316: 43,3457           63243                           AD       ERASCON5                              #  76777, CHECK FOR BANK E2
055282,000317: 43,3460           00006                           EXTEND                                         
055283,000318: 43,3461           13355                           BZF      2EBANK                                
055284,000319: 43,3462           10003                           CCS      EBANK                                 
055285,000320: 43,3463           03350                           TC       E134567B                              #  GO TO EBANKS 1,3,4,5,6, AND 7
055286,000321: 43,3464           35007                           CA       ERASCON6                              #  END OF ERASCHK
055287,000322: 43,3465           54003                           TS       EBANK                                 
055288,000323: 
055289,000324:                                                                                                  #  CNTRCHK PERFORMS A CS OF ALL REGISTERS FROM OCT. 60 THROUGH OCT. 10.
055290,000325:                                                                                                  #  INCLUDED ARE ALL COUNTERS, T6-1, CYCLE AND SHIFT, AND ALL RUPT REGISTERS
055291,000326: 
055292,000327: 43,3466           34771        CNTRCHK            CA       CNTRCON                               #  00050
055293,000328: 43,3467           55372        CNTRLOOP           TS       SKEEP2                                
055294,000329: 43,3470           64750                           AD       SBIT4                                 #  +10 OCTAL
055295,000330: 43,3471           50000                           INDEX    A                                     
055296,000331: 43,3472           40000                           CS       0000                                  

Page 1290

055298,000333: 43,3473           11372                           CCS      SKEEP2                                
055299,000334: 43,3474           03467                           TC       CNTRLOOP                              
055300,000335: 
055301,000336:                                                                                                  #  CYCLSHFT CHECKS THE CYCLE AND SHIFT REGISTERS
055302,000337: 
055303,000338: 43,3475           33241        CYCLSHFT           CA       CONC+S1                               #  25252
055304,000339: 43,3476           54020                           TS       CYR                                   #  C(CYR) = 12525
055305,000340: 43,3477           54022                           TS       CYL                                   #  C(CYL) = 52524
055306,000341: 43,3500           54021                           TS       SR                                    #  C(SR) = 12525
055307,000342: 43,3501           54023                           TS       EDOP                                  #  C(EDOP) = 00125
055308,000343: 43,3502           60020                           AD       CYR                                   #  37777         C(CYR) = 45252
055309,000344: 43,3503           60022                           AD       CYL                                   #  00-12524      C(CYL) = 25251
055310,000345: 43,3504           60021                           AD       SR                                    #  00-25251      C(SR) = 05252
055311,000346: 43,3505           60023                           AD       EDOP                                  #  00-25376      C(EDOP) = +0
055312,000347: 43,3506           63242                           AD       CONC+S2                               #  C(CONC+S2) = 52400
055313,000348: 43,3507           03273                           TC       -1CHK                                 
055314,000349: 43,3510           60020                           AD       CYR                                   #  45252
055315,000350: 43,3511           60022                           AD       CYL                                   #  72523
055316,000351: 43,3512           60021                           AD       SR                                    #  77775
055317,000352: 43,3513           60023                           AD       EDOP                                  #  77775
055318,000353: 43,3514           64753                           AD       S+1                                   #  77776
055319,000354: 43,3515           03273                           TC       -1CHK                                 
055320,000355: 
055321,000356: 43,3516           25367                           INCR     SCOUNT     +1                         
055322,000357: 43,3517           03301                           TC       SMODECHK                              
055323,000358: 
055324,000359:                                                                                                  #  SKEEP1 HOLDS SUM
055325,000360:                                                                                                  #  SKEEP2 HOLDS PRESENT CONTENTS OF ADDRESS IN ROPECHK AND SHOWSUM ROUTINES
055326,000361:                                                                                                  #  SKEEP2 HOLDS BANK NUMBER IN LOW ORDER BITS DURING SHOWSUM DISPLAY
055327,000362:                                                                                                  #  SKEEP3 HOLDS PRESENT ADDRESS (00000 TO 01777 IN COMMON FIXED BANKS)
055328,000363:                                                                                                  #                               (04000 TO 07777 IN FXFX BANKS)
055329,000364:                                                                                                  #  SKEEP3 HOLDS BUGGER WORD DURING SHOWSUM DISPLAY
055330,000365:                                                                                                  #  SKEEP4 HOLDS BANK NUMBER AND SUPER BANK NUMBER
055331,000366:                                                                                                  #  SKEEP5 COUNTS 2 SUCCESSIVE TC SELF WORDS
055332,000367:                                                                                                  #  SKEEP6 CONTROLS ROPECHK OR SHOWSUM OPTION
055333,000368:                                                                                                  #  SKEEP7 CONTROLS WHEN ROUNTINE IS IN COMMON FIXED OR FIXED FIXED BANKS
055334,000369: 
055335,000370: 43,3520           34754        ROPECHK            CA       S-ZERO                                #  *
055336,000371: 43,3521           55376                           TS       SKEEP6                                #  * -0 FOR ROPECHK.
055337,000372: 43,3522           34755        STSHOSUM           CA       S+ZERO                                #  * SHOULD BE ROPECHK
055338,000373: 
055339,000374: 43,3523           55374                           TS       SKEEP4                                #  BANK NUMBER
055340,000375: 43,3524           34753                           CA       S+1                                   
055341,000376: 43,3525           55377        COMMFX             TS       SKEEP7                                
055342,000377: 43,3526           34755                           CA       S+ZERO                                
055343,000378: 43,3527           55371                           TS       SKEEP1                                
055344,000379: 43,3530           55373                           TS       SKEEP3                                
055345,000380: 43,3531           34753                           CA       S+1                                   
055346,000381: 43,3532           55375                           TS       SKEEP5                                #  COUNTS DOWN 2 TC SELF WORDS
055347,000382: 43,3533           31374        COMADRS            CA       SKEEP4                                
055348,000383: 43,3534           54001                           TS       L                                     #  TO SET SUPER BANK
055349,000384: 43,3535           74350                           MASK     HI5                                   

Page 1291

055351,000386: 43,3536           61373                           AD       SKEEP3                                
055352,000387: 43,3537           04651                           TC       SUPDACAL                              #  SUPER DATA CALL
055353,000388: 43,3540           03563                           TC       ADSUM                                 
055354,000389: 43,3541           64741                           AD       SBIT11                                #  02000
055355,000390: 43,3542           03574                           TC       ADRSCHK                               
055356,000391: 
055357,000392: 43,3543           40000        FXFX               CS       A                                     
055358,000393: 43,3544           55377                           TS       SKEEP7                                
055359,000394: 43,3545           00006                           EXTEND                                         
055360,000395: 43,3546           13551                           BZF      +3                                    
055361,000396: 43,3547           34740                           CA       SBIT12                                #  04000, STARTING ADDRESS OF BANK 02
055362,000397: 43,3550           03552                           TC       +2                                    
055363,000398: 43,3551           35020                           CA       SBNK03                                #  06000, STARTING ADDRESS OF BANK 03
055364,000399: 43,3552           55373                           TS       SKEEP3                                
055365,000400: 43,3553           34755                           CA       S+ZERO                                
055366,000401: 43,3554           55371                           TS       SKEEP1                                
055367,000402: 43,3555           34753                           CA       S+1                                   
055368,000403: 43,3556           55375                           TS       SKEEP5                                #  COUNTS DOWN 2 TC SELF WORDS
055369,000404: 43,3557           51373        FXADRS             INDEX    SKEEP3                                
055370,000405: 43,3560           30000                           CA       0000                                  
055371,000406: 43,3561           03563                           TC       ADSUM                                 
055372,000407: 43,3562           03574                           TC       ADRSCHK                               
055373,000408: 
055374,000409: 43,3563           55372        ADSUM              TS       SKEEP2                                
055375,000410: 43,3564           61371                           AD       SKEEP1                                
055376,000411: 43,3565           55371                           TS       SKEEP1                                
055377,000412: 43,3566           34755                           CAF      S+ZERO                                
055378,000413: 43,3567           61371                           AD       SKEEP1                                
055379,000414: 43,3570           55371                           TS       SKEEP1                                
055380,000415: 43,3571           41372                           CS       SKEEP2                                
055381,000416: 43,3572           61373                           AD       SKEEP3                                
055382,000417: 43,3573           00002                           TC       Q                                     
055383,000418: 
055384,000419: 43,3574           22000        ADRSCHK            LXCH     A                                     
055385,000420: 43,3575           31373                           CA       SKEEP3                                
055386,000421: 43,3576           75012                           MASK     LOW10                                 #  RELATIVE ADDRESS
055387,000422: 43,3577           64350                           AD       -MAXADRS                              #  SUBTRACT MAX RELATIVE ADDRESS = 1777.
055388,000423: 43,3600           00006                           EXTEND                                         
055389,000424: 43,3601           13670                           BZF      SOPTION                               #  CHECKSUM FINISHED IF LAST ADDRESS.
055390,000425: 43,3602           11375                           CCS      SKEEP5                                #  IS CHECKSUM FINISHED
055391,000426: 43,3603           03606                           TC       +3                                    #  NO
055392,000427: 43,3604           03606                           TC       +2                                    #  NO
055393,000428: 43,3605           03670                           TC       SOPTION                               #  GO TO ROPECHK SHOWSUM OPTION
055394,000429: 43,3606           10001                           CCS      L                                     #  -0 MEANS A TC SELF WORD.
055395,000430: 43,3607           03616                           TC       CONTINU                               
055396,000431: 43,3610           03616                           TC       CONTINU                               
055397,000432: 43,3611           03616                           TC       CONTINU                               
055398,000433: 43,3612           11375                           CCS      SKEEP5                                
055399,000434: 43,3613           03617                           TC       CONTINU    +1                         
055400,000435: 43,3614           37747                           CA       S-1                                   

Page 1292

055402,000437: 43,3615           03617                           TC       CONTINU    +1                         #  AD IN THE BUGGER WORD
055403,000438: 43,3616           34753        CONTINU            CA       S+1                                   #  MAKE SURE TWO CONSECUTIVE TC SELF WORDS
055404,000439: 43,3617           55375                           TS       SKEEP5                                
055405,000440: 43,3620           11376                           CCS      SKEEP6                                #  *
055406,000441: 43,3621           10067                           CCS      NEWJOB                                #  * +1, SHOWSUM
055407,000442: 43,3622           05122                           TC       CHANG1                                #  *
055408,000443: 43,3623           03625                           TC       +2                                    #  *
055409,000444: 43,3624           03332                           TC       CHECKNJ                               #  -0 IN SKEEP6 FOR ROPECHK
055410,000445: 
055411,000446: 43,3625           25373        ADRS+1             INCR     SKEEP3                                
055412,000447: 43,3626           11377                           CCS      SKEEP7                                
055413,000448: 43,3627           03533                           TC       COMADRS                               
055414,000449: 43,3630           03533                           TC       COMADRS                               
055415,000450: 43,3631           03557                           TC       FXADRS                                
055416,000451: 43,3632           03557                           TC       FXADRS                                
055417,000452: 
055418,000453: 43,3633           41374        NXTBNK             CS       SKEEP4                                
055419,000454: 43,3634           63723                           AD       LSTBNKCH                              #  LAST BANK TO BE CHECKED
055420,000455: 43,3635           00006                           EXTEND                                         
055421,000456: 43,3636           13131                           BZF      ENDSUMS                               #  END OF SUMMING OF BANKS.
055422,000457: 43,3637           31374                           CA       SKEEP4                                
055423,000458: 43,3640           64741                           AD       SBIT11                                
055424,000459: 43,3641           55374                           TS       SKEEP4                                #  37 TO 40 INCRMTS SKEEP4 BY END RND CARRY
055425,000460: 43,3642           03646                           TC       CHKSUPR                               
055426,000461: 43,3643           34735        17TO20             CA       SBIT15                                
055427,000462: 43,3644           27374                           ADS      SKEEP4                                #  SET FOR BANK 20
055428,000463: 43,3645           03662                           TC       GONXTBNK                              
055429,000464: 43,3646           74350        CHKSUPR            MASK     HI5                                   
055430,000465: 43,3647           00006                           EXTEND                                         
055431,000466: 43,3650           13660                           BZF      NXTSUPR                               #  INCREMENT SUPER BANK
055432,000467: 43,3651           63240        27TO30             AD       S13BITS                               
055433,000468: 43,3652           00006                           EXTEND                                         
055434,000469: 43,3653           13655                           BZF      +2                                    #  BANK SET FOR 30
055435,000470: 43,3654           03662                           TC       GONXTBNK                              
055436,000471: 43,3655           33236                           CA       SIXTY                                 #  FIRST SUPER BANK
055437,000472: 43,3656           27374                           ADS      SKEEP4                                
055438,000473: 43,3657           03662                           TC       GONXTBNK                              
055439,000474: 43,3660           63237        NXTSUPR            AD       SUPRCON                               #  SET BNK 30 + INCR SUPR BNK AND CANCEL
055440,000475: 43,3661           27374                           ADS      SKEEP4                                #  ERC BIT OF THE 37 TO 40 ADVANCE.
055441,000476: 43,3662           11377        GONXTBNK           CCS      SKEEP7                                
055442,000477: 43,3663           03525                           TC       COMMFX                                
055443,000478: 43,3664           34753                           CA       S+1                                   
055444,000479: 43,3665           03543                           TC       FXFX                                  
055445,000480: 43,3666           34745                           CA       SBIT7                                 #  HAS TO BE LARGER THAN NO OF FXSW BANKS.
055446,000481: 43,3667           03525                           TC       COMMFX                                
055447,000482: 
055448,000483: 43,3670           31374        SOPTION            CA       SKEEP4                                
055449,000484: 43,3671           74350                           MASK     HI5                                   #  = BANK BITS
055450,000485: 43,3672           04331                           TC       LEFT5                                 
055451,000486: 43,3673           54001                           TS       L                                     #  BANK NUMBER BEFORE SUPER BANK

Page 1293

055453,000488: 43,3674           31374                           CA       SKEEP4                                
055454,000489: 43,3675           74357                           MASK     S8BITS                                #  = SUPER BANK BITS
055455,000490: 43,3676           00006                           EXTEND                                         
055456,000491: 43,3677           13705                           BZF      SOPT                                  #  BEFORE SUPER BANK
055457,000492: 43,3700           54021                           TS       SR                                    #  SUPER BANK NECESSARY
055458,000493: 43,3701           30001                           CA       L                                     
055459,000494: 43,3702           74757                           MASK     SEVEN                                 
055460,000495: 43,3703           60021                           AD       SR                                    
055461,000496: 43,3704           54001                           TS       L                                     #  BANK NUMBER WITH SUPER BANK
055462,000497: 43,3705           31376        SOPT               CA       SKEEP6                                #  *
055463,000498: 43,3706           00006                           EXTEND                                         #  *
055464,000499: 43,3707           13711                           BZF      +2                                    #  * ON -0 CONTINUE WITH ROPE CHECK.
055465,000500: 43,3710           03113                           TC       SDISPLAY                              #  * ON +1 GO TO DISPLAY OF SUM.
055466,000501: 43,3711           11371                           CCS      SKEEP1                                #  FORCE SUM TO ABSOLUTE VALUE.
055467,000502: 43,3712           03714                           TC       +2                                    
055468,000503: 43,3713           03715                           TC       +2                                    
055469,000504: 43,3714           64753                           AD       S+1                                   
055470,000505: 43,3715           55371                           TS       SKEEP1                                
055471,000506: 43,3716           40001        BNKCHK             CS       L                                     #  = - BANK NUMBER
055472,000507: 43,3717           61371                           AD       SKEEP1                                
055473,000508: 43,3720           67747                           AD       S-1                                   
055474,000509: 43,3721           03273                           TC       -1CHK                                 #  CHECK SUM
055475,000510: 43,3722           03633                           TC       NXTBNK                                
055476,000511: 
055477,000512: 43,3723     0067                                  EBANK=   NEWJOB                                
055478,000513: 43,3723           66100        LSTBNKCH           BBCON*                                         #  * CONSTANT, LAST BANK.
055479,000514: 

End of include-file AGC_BLOCK_TWO_SELF-CHECK.agc.  Parent file is MAIN.agc