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 Colossus 249 (Apollo 9) 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 055 OF AGC PROGRAM COMANCHE BY NASA 2021113-051
	10:28 APR.  1,1969
Note that the date is the date of the printout, not the date of the program revision.

060667,000002:                                                                                                  ## Copyright:   Public domain.
060668,000003:                                                                                                  ## Filename:    AGC_BLOCK_TWO_SELF-CHECK.agc
060669,000004:                                                                                                  ## Purpose:     Part of the source code for Colossus 2A, AKA Comanche 055.
060670,000005:                                                                                                  ##              It is part of the source code for the Command Module's (CM)
060671,000006:                                                                                                  ##              Apollo Guidance Computer (AGC), for Apollo 11.
060672,000007:                                                                                                  ## Assembler:   yaYUL
060673,000008:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.
060674,000009:                                                                                                  ## Website:     www.ibiblio.org/apollo.
060675,000010:                                                                                                  ## Pages:       1394-1403
060676,000011:                                                                                                  ## Mod history: 2009-05-10 SN  (Sergio Navarro).  Started adapting
060677,000012:                                                                                                  ##                              from the Colossus249/ file of the same
060678,000013:                                                                                                  ##                              name, using Comanche055 page images.
060679,000014:                                                                                                  ##              2016-12-22 RSB  Proofed comment text using octopus/ProoferComments
060680,000015:                                                                                                  ##                              and corrected the errors found.
060681,000016:                                                                                                  ##
060682,000017:                                                                                                  ## This source code has been transcribed or otherwise adapted from digitized
060683,000018:                                                                                                  ## images of a hardcopy from the MIT Museum.  The digitization was performed
060684,000019:                                                                                                  ## by Paul Fjeld, and arranged for by Deborah Douglas of the Museum.  Many
060685,000020:                                                                                                  ## thanks to both.  The images (with suitable reduction in storage size and
060686,000021:                                                                                                  ## consequent reduction in image quality as well) are available online at
060687,000022:                                                                                                  ## www.ibiblio.org/apollo.  If for some reason you find that the images are
060688,000023:                                                                                                  ## illegible, contact me at info@sandroid.org about getting access to the
060689,000024:                                                                                                  ## (much) higher-quality images which Paul actually created.
060690,000025:                                                                                                  ##
060691,000026:                                                                                                  ## Notations on the hardcopy document read, in part:
060692,000027:                                                                                                  ##
060693,000028:                                                                                                  ##    Assemble revision 055 of AGC program Comanche by NASA
060694,000029:                                                                                                  ##    2021113-051.  10:28 APR. 1, 1969 
060695,000030:                                                                                                  ##
060696,000031:                                                                                                  ##    This AGC program shall also be referred to as
060697,000032:                                                                                                  ##            Colossus 2A
060698,000033: 

Page 1394

060700,000035:                                                                                                  #  PROGRAM DESCRIPTION                           DATE  20 DECEMBER 1967
060701,000036:                                                                                                  #  PROGRAM NAME - SELF-CHECK                     LOG SECTION AGC BLOCK TWO SELF-CHECK
060702,000037:                                                                                                  #  MOD NO - 1                                    ASSEMBLY SUBROUTINE UTILITYM REV 25
060703,000038:                                                                                                  #  MOD BY - GAUNTT
060704,000039: 
060705,000040:                                                                                                  #  FUNCTIONAL DESCRIPTION
060706,000041:                                                                                                  #        PROGRAM HAS TWO MAIN PARTS.  THE FIRST IS SELF-CHECK WHICH RUNS AS A ZERO PRIORITY JOB WITH NO CORE SET, AS
060707,000042:                                                                                                  #        PART OF THE BACK-UP IDLE LOOP.  THE SECOND IS SHOW-BANKSUM WHICH RUNS AS A REGULAR EXECUTIVE JOB WITH ITS OWN
060708,000043:                                                                                                  #        STARTING VERB.
060709,000044: 
060710,000045:                                                                                                  #        THE PURPOSE OF SELF-CHECK IS TO CHECK OUT VARIOUS PARTS OF THE COMPUTER AS OUTLINED BELOW IN THE OPTIONS.
060711,000046: 
060712,000047:                                                                                                  #        THE PURPOSE OF SHOW-BANKSUM IS TO DISPLAY THE SUM OF EACH BANK, ONE AT A TIME.
060713,000048: 
060714,000049:                                                                                                  #        IN ALL THERE ARE 7 POSSIBLE OPTIONS IN THIS BLOCK II VERSION OF SELF-CHECK.  MORE DETAIL DESCRIPTION MAY BE
060715,000050:                                                                                                  #        FOUND IN E-2065 BLOCK II AGC SELF-CHECK AND SHOW BANKSUM BY EDWIN D. SMALLY DECEMBER 1966, AND ADDENDA 2 AND 3.
060716,000051: 
060717,000052:                                                                                                  #        THE DIFFERENT OPTIONS ARE CONTROLLED BY PUTTING DIFFERENT NUMBERS IN THE SMODE REGISTER (NOUN 27).  BELOW IS
060718,000053:                                                                                                  #        A DESCRIPTION OF WHAT PARTS OF THE COMPUTER THAT ARE CHECKED BY THE OPTIONS, AND THE CORRESPONDING NUMBER, IN
060719,000054:                                                                                                  #        OCTAL, TO LOAD INTO SMODE.
060720,000055:                                                                                                  #                +-4             ERASABLE MEMORY
060721,000056:                                                                                                  #                +-5             FIXED MEMORY
060722,000057:                                                                                                  #                +-1,2,3,6,7,10  EVERYTHING IN OPTIONS 4 AND 5.
060723,000058:                                                                                                  #                -0              SAME AS +-10 UNTIL AN ERROR IS DETECTED.
060724,000059:                                                                                                  #                +0              NO CHECK, PUTS COMPUTER INTO THE BACKUP IDLE LOOP.
060725,000060: 
060726,000061:                                                                                                  #  WARNINGS
060727,000062:                                                                                                  #        USE OF E MEMORY RESERVED FOR SELF-CHECK (EVEN IN IDLE LOOP) AS TEMP STORAGE BY OTHER PROGRAMS IS DANGEROUS.
060728,000063:                                                                                                  #        SMODE SET GREATER THAN OCT 10 PUTS COMPUTER INTO BACKUP IDLE LOOP.
060729,000064: 
060730,000065:                                                                                                  #  CALLING SEQUENCE
060731,000066:                                                                                                  #        TO CALL SELF-CHECK KEY IN
060732,000067:                                                                                                  #                V 21 N 27 E     OPTION NUMBER E
060733,000068:                                                                                                  #        TO CALL SHOW-BANKSUM KEY IN
060734,000069:                                                                                                  #                V 91 E          DISPLAYS FIRST BANK
060735,000070:                                                                                                  #                V 33 E          PROCEED, DISPLAYS NEXT BANK
060736,000071: 
060737,000072:                                                                                                  #  EXIT MODES, NORMAL AND ALARM
060738,000073:                                                                                                  #        SELF-CHECK NORMALLY CONTINUES INDEFINITELY UNLESS THERE IS AN ERROR DETECTED.  IF SO + OPTION NUMBERS PUT
060739,000074:                                                                                                  #        COMPUTER INTO BACKUP IDLE LOOP, - OPTION NUMBERS RESTART THE OPTION.
060740,000075: 
060741,000076:                                                                                                  #        THE -0 OPTION PROCEEDS FROM THE LINE FOLLOWING THE LINE WHERE THE ERROR WAS DETECTED.
060742,000077: 
060743,000078:                                                                                                  #        SHOW-BANKSUM PROCEEDS UNTIL A TERMINATE IS KEYED IN (V 34 E).  THE COMPUTER IS PUT INTO THE BACKUP IDLE LOOP
060744,000079: 
060745,000080:                                                                                                  #  OUTPUT

Page 1395

060747,000082:                                                                                                  #        SELF-CHECK UPON DETECTING AN ERROR LOADS THE SELF-CHECK ALARM CONSTANT (01102) INTO THE FAILREG SET AND
060748,000083:                                                                                                  #        TURNS ON THE ALARM LIGHT.  THE OPERATOR MAY THEN DISPLAY THE THREE FAILREGS BY KEYING IN V 05 N 09 E.  FOR FURTHER
060749,000084:                                                                                                  #        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,
060750,000085:                                                                                                  #        IN R2 THE BBCON OF SELF-CHECK, AND IN R3 THE TOTAL NUMBER OF ERRORS DETECTED BY SELF-CHECK SINCE THE LAST MAN
060751,000086:                                                                                                  #        INITIATED FRESH START (SLAP1).
060752,000087: 
060753,000088:                                                                                                  #        SHOW-BANKSUM STARTING WITH BANK 0 DISPLAYS IN R1 THE BANK SUM (A +-NUMBER EQUAL TO THE BANK NUMBER), IN R2
060754,000089:                                                                                                  #        THE BANK NUMBER, AND IN R3 THE BUGGER WORD.
060755,000090: 
060756,000091:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
060757,000092:                                                                                                  #        ACCOMPLISHED BY FRESH START
060758,000093:                                                                                                  #                SMODE SET TO +0
060759,000094: 
060760,000095:                                                                                                  #  DEBRIS
060761,000096:                                                                                                  #        ALL EXITS FROM THE CHECK OF ERASABLE (ERASCHK) RESTORE ORIGINAL CONTENTS TO REGISTERS UNDER CHECK.
060762,000097:                                                                                                  #        EXCEPTION IS A RESTART.  RESTART THAT OCCURS DURING ERASCHK RESTORES ERASABLE, UNLESS THERE IS EVIDENCE TO DOUBT
060763,000098:                                                                                                  #        E MEMORY, IN WHICH CASE PROGRAM THEN DOES A FRESH START (DOFSTART).
060764,000099: 
060765,000100: 25,3774                                           BANK     25                                    
060766,000101: 43,2000                                           SETLOC   SELFCHEC                              
060767,000102: 43,2000                                           BANK                                           
060768,000103: 
060769,000104: 43,3234                                           COUNT    43/SELF                               
060770,000105: 
060771,000106: 43,3234     5017               SBIT1              EQUALS   BIT1                                  
060772,000107: 43,3234     5016               SBIT2              EQUALS   BIT2                                  
060773,000108: 43,3234     5015               SBIT3              EQUALS   BIT3                                  
060774,000109: 43,3234     5014               SBIT4              EQUALS   BIT4                                  
060775,000110: 43,3234     5013               SBIT5              EQUALS   BIT5                                  
060776,000111: 43,3234     5012               SBIT6              EQUALS   BIT6                                  
060777,000112: 43,3234     5011               SBIT7              EQUALS   BIT7                                  
060778,000113: 43,3234     5010               SBIT8              EQUALS   BIT8                                  
060779,000114: 43,3234     5007               SBIT9              EQUALS   BIT9                                  
060780,000115: 43,3234     5006               SBIT10             EQUALS   BIT10                                 
060781,000116: 43,3234     5005               SBIT11             EQUALS   BIT11                                 
060782,000117: 43,3234     5004               SBIT12             EQUALS   BIT12                                 
060783,000118: 43,3234     5003               SBIT13             EQUALS   BIT13                                 
060784,000119: 43,3234     5002               SBIT14             EQUALS   BIT14                                 
060785,000120: 43,3234     5001               SBIT15             EQUALS   BIT15                                 
060786,000121: 
060787,000122: 43,3234     5021               S+ZERO             EQUALS   ZERO                                  
060788,000123: 43,3234     5017               S+1                EQUALS   BIT1                                  
060789,000124: 43,3234     5016               S+2                EQUALS   BIT2                                  
060790,000125: 43,3234     6214               S+3                EQUALS   THREE                                 
060791,000126: 43,3234     5015               S+4                EQUALS   FOUR                                  
060792,000127: 43,3234     5022               S+5                EQUALS   FIVE                                  

Page 1396

060794,000129: 43,3234     6211               S+6                EQUALS   SIX                                   
060795,000130: 43,3234     5023               S+7                EQUALS   SEVEN                                 
060796,000131: 43,3234     4373               S8BITS             EQUALS   LOW8                                  #  00377
060797,000132: 43,3234     5033               CNTRCON            =        OCT50                                 #  USED IN CNTRCHK
060798,000133: 43,3234           00061        ERASCON1           OCTAL    00061                                 #  USED IN ERASCHK
060799,000134: 43,3235           01373        ERASCON2           OCTAL    01373                                 #  USED IN ERASCHK
060800,000135: 43,3236     5051               ERASCON6           =        OCT1400                               #  USED IN ERASCHK
060801,000136: 43,3236           01461        ERASCON3           OCTAL    01461                                 #  USED IN ERASCHK
060802,000137: 43,3237           01773        ERASCON4           OCTAL    01773                                 #  USED IN ERASCHK
060803,000138: 43,3240     5054               S10BITS            EQUALS   LOW10                                 #  01777, USED IN ERASCHK
060804,000139: 43,3240     5062               SBNK03             EQUALS   PRIO6                                 #  06000, USED IN ROPECHK
060805,000140: 43,3240     4364               -MAXADRS           =        HI5                                   #  FOR ROPECHK
060806,000141: 43,3240           00060        SIXTY              OCTAL    00060                                 
060807,000142: 43,3241           60017        SUPRCON            OCTAL    60017                                 #  USED IN ROPECHK
060808,000143: 43,3242           17777        S13BITS            OCTAL    17777                                 
060809,000144: 43,3243           25252        CONC+S1            OCTAL    25252                                 #  USED IN CYCLSHFT
060810,000145: 43,3244           52400        CONC+S2            OCTAL    52400                                 #  USED IN CYCLSHFT
060811,000146: 43,3245           76777        ERASCON5           OCTAL    76777                                 
060812,000147: 43,3246     5731               S-7                =        OCT77770                              
060813,000148: 43,3246     6061               S-4                EQUALS   NEG4                                  
060814,000149: 43,3246     7714               S-3                EQUALS   NEG3                                  
060815,000150: 43,3246     7715               S-2                EQUALS   NEG2                                  
060816,000151: 43,3246     7716               S-1                EQUALS   NEGONE                                
060817,000152: 43,3246     5020               S-ZERO             EQUALS   NEG0                                  
060818,000153: 
060819,000154: 43,3246  E3,1400                                  EBANK=   LST1                                  
060820,000155: 43,3246           01371        ADRS1              ADRES    SKEEP1                                
060821,000156: 43,3247           03340        SELFADRS           ADRES    SELFCHK                               #  SELFCHK RETURN ADDRESS.  SHOULD BE PUT
060822,000157:                                                                                                  #  IN SELFRET WHEN GOING FROM SELFCHK TO
060823,000158:                                                                                                  #  SHOWSUM AND PUT IN SKEEP1 WHEN GOING
060824,000159:                                                                                                  #  FROM SHOWSUM TO SELF-CHECK.
060825,000160: 
060826,000161: 43,3250           31360        PRERRORS           CA       ERESTORE                              #  IS IT NECESSARY TO RESTORE ERASABLE
060827,000162: 43,3251           00006                           EXTEND                                         
060828,000163: 43,3252           13261                           BZF      ERRORS                                #  NO
060829,000164: 43,3253           00006                           EXTEND                                         
060830,000165: 43,3254           31376                           DCA      SKEEP5                                
060831,000166: 43,3255           51377                           INDEX    SKEEP7                                
060832,000167: 43,3256           52001                           DXCH     0000                                  #  RESTORE THE TWO ERASABLE REGISTERS
060833,000168: 43,3257           35021                           CA       S+ZERO                                
060834,000169: 43,3260           55360                           TS       ERESTORE                              
060835,000170: 43,3261           00004        ERRORS             INHINT                                         
060836,000171: 43,3262           30002                           CA       Q                                     
060837,000172: 43,3263           55357                           TS       SFAIL                                 #  SAVE Q FOR FAILURE LOCATION
060838,000173: 43,3264           55363                           TS       ALMCADR                               #  FOR DISPLAY WITH BBANK AND ERCOUNT
060839,000174: 43,3265           25365                           INCR     ERCOUNT                               #  KEEP TRACK OF NUMBER OF MALFUNCTIONS.
060840,000175: 43,3266           05652        TCALARM2           TC       ALARM2                                
060841,000176: 43,3267           01102                           OCT      01102                                 #  SELF-CHECK MALFUNCTION INDICATOR
060842,000177: 43,3270           11362                           CCS      SMODE                                 
060843,000178: 43,3271           35021        SIDLOOP            CA       S+ZERO                                

Page 1397

060845,000180: 43,3272           55362                           TS       SMODE                                 
060846,000181: 43,3273           03340                           TC       SELFCHK                               #  GO TO IDLE LOOP
060847,000182: 43,3274           01357                           TC       SFAIL                                 #  CONTINUE WITH SELF-CHECK
060848,000183: 
060849,000184: 43,3275           10000        -1CHK              CCS      A                                     
060850,000185: 43,3276           13250                           TCF      PRERRORS                              
060851,000186: 43,3277           13250                           TCF      PRERRORS                              
060852,000187: 43,3300           10000                           CCS      A                                     
060853,000188: 43,3301           13250                           TCF      PRERRORS                              
060854,000189: 43,3302           00002                           TC       Q                                     
060855,000190: 
060856,000191: 43,3303           00006        SMODECHK           EXTEND                                         
060857,000192: 43,3304           23371                           QXCH     SKEEP1                                
060858,000193: 43,3305           03334                           TC       CHECKNJ                               #  CHECK FOR NEW JOB
060859,000194: 43,3306           11362                           CCS      SMODE                                 
060860,000195: 43,3307           03314                           TC       SOPTIONS                              
060861,000196: 43,3310           03305                           TC       SMODECHK   +2                         #  TO BACKUP IDLE LOOP
060862,000197: 43,3311           03314                           TC       SOPTIONS                              
060863,000198: 43,3312           25366                           INCR     SCOUNT                                
060864,000199: 43,3313           01371                           TC       SKEEP1                                #  CONTINUE WITH SELF-CHECK
060865,000200: 
060866,000201: 43,3314           65731        SOPTIONS           AD       S-7                                   
060867,000202: 43,3315           00006                           EXTEND                                         
060868,000203: 43,3316           63320                           BZMF     +2                                    #  FOR OPTIONS BELOW NINE.
060869,000204: 43,3317           03271        BNKOPTN            TC       SIDLOOP                               #  ILLEGAL OPTION.  GO TO IDLE LOOP.
060870,000205: 43,3320           25366                           INCR     SCOUNT                                #  FOR OPTIONS BELOW NINE.
060871,000206: 43,3321           65023                           AD       S+7                                   
060872,000207: 
060873,000208: 43,3322           50000                           INDEX    A                                     
060874,000209: 43,3323           03324                           TC       SOPTION1                              
060875,000210: 43,3324           01371        SOPTION1           TC       SKEEP1                                #  WAS TC+TCF
060876,000211: 43,3325           01371        SOPTION2           TC       SKEEP1                                #  WAS IN:OUT1
060877,000212: 43,3326           01371        SOPTION3           TC       SKEEP1                                #  WAS COUNTCHK
060878,000213: 43,3327           03341        SOPTION4           TC       ERASCHK                               
060879,000214: 43,3330           03522        SOPTION5           TC       ROPECHK                               
060880,000215: 43,3331           01371        SOPTION6           TC       SKEEP1                                
060881,000216: 43,3332           01371        SOPTION7           TC       SKEEP1                                
060882,000217: 43,3333           01371        SOPTON10           TC       SKEEP1                                #  CONTINUE WITH SELF-CHECK
060883,000218: 
060884,000219: 43,3334           00006        CHECKNJ            EXTEND                                         
060885,000220: 43,3335           23361                           QXCH     SELFRET                               #  SAVE RETURN ADDRESS WHILE TESTING NEWJOB
060886,000221: 43,3336           04701                           TC       POSTJUMP                              #  TO SEE IF ANY JOBS HAVE BECOME ACTIVE.
060887,000222: 43,3337           03231                           CADR     ADVAN                                 
060888,000223: 
060889,000224: 43,3340           03303        SELFCHK            TC       SMODECHK                              #  ** CHARLEY, COME IN HERE
060890,000225: 
060891,000226:                                                                                                  #  SKEEP7 HOLDS LOWEST OF TWO ADDRESSES BEING CHECKED.
060892,000227:                                                                                                  #  SKEEP6 HOLDS B(X+1).
060893,000228:                                                                                                  #  SKEEP5 HOLDS B(X).
060894,000229:                                                                                                  #  SKEEP4 HOLDS C(EBANK) DURING ERASLOOP AND CHECKNJ.

Page 1398

060896,000231:                                                                                                  #  SKEEP3 HOLDS LAST ADDRESS BEING CHECKED (HIGHEST ADDRESS).
060897,000232:                                                                                                  #  SKEEP2 CONTROLS CHECKING OF NON-SWITCHABLE ERASABLE MEMORY WITH BANK NUMBERS IN EB.
060898,000233: 
060899,000234:                                                                                                  #  ERASCHK TAKES APPROXMATELY 7 SECONDS
060900,000235: 
060901,000236: 43,3341           35017        ERASCHK            CA       S+1                                   
060902,000237: 43,3342           55372                           TS       SKEEP2                                
060903,000238: 43,3343           35021        0EBANK             CA       S+ZERO                                
060904,000239: 43,3344           54003                           TS       EBANK                                 
060905,000240: 43,3345           33236                           CA       ERASCON3                              #  01461
060906,000241: 43,3346           55377                           TS       SKEEP7                                #  STARTING ADDRESS
060907,000242: 43,3347           35054                           CA       S10BITS                               #  01777
060908,000243: 43,3350           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
060909,000244: 43,3351           03371                           TC       ERASLOOP                              
060910,000245: 
060911,000246: 43,3352           35051        E134567B           CA       ERASCON6                              #  01400
060912,000247: 43,3353           55377                           TS       SKEEP7                                #  STARTING ADDRESS
060913,000248: 43,3354           35054                           CA       S10BITS                               #  01777
060914,000249: 43,3355           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
060915,000250: 43,3356           03371                           TC       ERASLOOP                              
060916,000251: 
060917,000252: 43,3357           35051        2EBANK             CA       ERASCON6                              #  01400
060918,000253: 43,3360           55377                           TS       SKEEP7                                #  STARTING ADDRESS
060919,000254: 43,3361           33237                           CA       ERASCON4                              #  01773
060920,000255: 43,3362           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
060921,000256: 43,3363           03371                           TC       ERASLOOP                              
060922,000257: 
060923,000258: 43,3364           55372        NOEBANK            TS       SKEEP2                                #  +0
060924,000259: 43,3365           33234                           CA       ERASCON1                              #  00061
060925,000260: 43,3366           55377                           TS       SKEEP7                                #  STARTING ADDRESS
060926,000261: 43,3367           33235                           CA       ERASCON2                              #  01373
060927,000262: 43,3370           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
060928,000263: 
060929,000264: 43,3371           00004        ERASLOOP           INHINT                                         
060930,000265: 43,3372           30003                           CA       EBANK                                 #  STORES C(EBANK)
060931,000266: 43,3373           55374                           TS       SKEEP4                                
060932,000267: 43,3374           00006                           EXTEND                                         
060933,000268: 43,3375           51377                           NDX      SKEEP7                                
060934,000269: 43,3376           30001                           DCA      0000                                  
060935,000270: 43,3377           53376                           DXCH     SKEEP5                                #  STORES C(X) AND C(X+1) IN SKEEP6 AND 5.
060936,000271: 43,3400           31377                           CA       SKEEP7                                
060937,000272: 43,3401           55360                           TS       ERESTORE                              #  IF RESTART, RESTORE C(X) AND C(X+1)
060938,000273: 43,3402           54001                           TS       L                                     
060939,000274: 43,3403           24001                           INCR     L                                     
060940,000275: 43,3404           50000                           NDX      A                                     
060941,000276: 43,3405           52001                           DXCH     0000                                  #  PUTS OWN ADDRESS IN X AND X +1
060942,000277: 43,3406           51377                           NDX      SKEEP7                                
060943,000278: 43,3407           40001                           CS       0001                                  #  CS X+1
060944,000279: 43,3410           51377                           NDX      SKEEP7                                
060945,000280: 43,3411           60000                           AD       0000                                  #  AD X
060946,000281: 43,3412           03275                           TC       -1CHK                                 
060947,000282: 43,3413           31360                           CA       ERESTORE                              #  HAS ERASABLE BEEN RESTORED

Page 1399

060949,000284: 43,3414           00006                           EXTEND                                         
060950,000285: 43,3415           13441                           BZF      ELOOPFIN                              #  YES, EXIT ERASLOOP.
060951,000286: 43,3416           00006                           EXTEND                                         
060952,000287: 43,3417           51377                           NDX      SKEEP7                                
060953,000288: 43,3420           40001                           DCS      0000                                  #  COMPLEMENT OF ADDRESS OF X AND X+1
060954,000289: 43,3421           51377                           NDX      SKEEP7                                
060955,000290: 43,3422           52001                           DXCH     0000                                  #  PUT COMPLEMENT OF ADDRESS OF X AND X+1
060956,000291: 43,3423           51377                           NDX      SKEEP7                                
060957,000292: 43,3424           40000                           CS       0000                                  #  CS X
060958,000293: 43,3425           51377                           NDX      SKEEP7                                
060959,000294: 43,3426           60001                           AD       0001                                  #  AD X+1
060960,000295: 43,3427           03275                           TC       -1CHK                                 
060961,000296: 43,3430           31360                           CA       ERESTORE                              #  HAS ERASABLE BEEN RESTORED
060962,000297: 43,3431           00006                           EXTEND                                         
060963,000298: 43,3432           13441                           BZF      ELOOPFIN                              #  YES, EXIT ERASLOOP.
060964,000299: 43,3433           00006                           EXTEND                                         
060965,000300: 43,3434           31376                           DCA      SKEEP5                                
060966,000301: 43,3435           51377                           NDX      SKEEP7                                
060967,000302: 43,3436           52001                           DXCH     0000                                  #  PUT B(X) AND B(X+1) BACK INTO X AND X+1
060968,000303: 43,3437           35021                           CA       S+ZERO                                
060969,000304: 43,3440           55360                           TS       ERESTORE                              #  IF RESTART, DO NOT RESTORE C(X), C(X+1)
060970,000305: 43,3441           00003        ELOOPFIN           RELINT                                         
060971,000306: 43,3442           03334                           TC       CHECKNJ                               #  CHECK FOR NEW JOB
060972,000307: 43,3443           31374                           CA       SKEEP4                                #  REPLACES B(EBANK)
060973,000308: 43,3444           54003                           TS       EBANK                                 
060974,000309: 43,3445           25377                           INCR     SKEEP7                                
060975,000310: 43,3446           41377                           CS       SKEEP7                                
060976,000311: 43,3447           61373                           AD       SKEEP3                                
060977,000312: 43,3450           00006                           EXTEND                                         
060978,000313: 43,3451           13453                           BZF      +2                                    
060979,000314: 43,3452           03371                           TC       ERASLOOP                              #  GO TO NEXT ADDRESS IN SAME BANK
060980,000315: 43,3453           11372                           CCS      SKEEP2                                
060981,000316: 43,3454           03364                           TC       NOEBANK                               
060982,000317: 43,3455           25372                           INCR     SKEEP2                                #  PUT +1 IN SKEEP2.
060983,000318: 43,3456           30003                           CA       EBANK                                 
060984,000319: 43,3457           65007                           AD       SBIT9                                 
060985,000320: 43,3460           54003                           TS       EBANK                                 
060986,000321: 43,3461           63245                           AD       ERASCON5                              #  76777, CHECK FOR BANK E2
060987,000322: 43,3462           00006                           EXTEND                                         
060988,000323: 43,3463           13357                           BZF      2EBANK                                
060989,000324: 43,3464           10003                           CCS      EBANK                                 
060990,000325: 43,3465           03352                           TC       E134567B                              #  GO TO EBANKS 1,3,4,5,6, AND 7
060991,000326: 43,3466           35051                           CA       ERASCON6                              #  END OF ERASCHK
060992,000327: 43,3467           54003                           TS       EBANK                                 
060993,000328: 
060994,000329:                                                                                                  #  CNTRCHK PERFORMS A CS OF ALL REGISTERS FROM OCT. 60 THROUGH OCT. 10.
060995,000330:                                                                                                  #  INCLUDED ARE ALL COUNTERS, T6-1, CYCLE AND SHIFT, AND ALL RUPT REGISTERS
060996,000331: 
060997,000332: 43,3470           35033        CNTRCHK            CA       CNTRCON                               #  00050
060998,000333: 43,3471           55372        CNTRLOOP           TS       SKEEP2                                
060999,000334: 43,3472           65014                           AD       SBIT4                                 #  +10 OCTAL
061000,000335: 43,3473           50000                           INDEX    A                                     

Page 1400

061002,000337: 43,3474           40000                           CS       0000                                  
061003,000338: 43,3475           11372                           CCS      SKEEP2                                
061004,000339: 43,3476           03471                           TC       CNTRLOOP                              
061005,000340: 
061006,000341:                                                                                                  #  CYCLSHFT CHECKS THE CYCLE AND SHIFT REGISTERS
061007,000342: 
061008,000343: 43,3477           33243        CYCLSHFT           CA       CONC+S1                               #  25252
061009,000344: 43,3500           54020                           TS       CYR                                   #  C(CYR) = 12525
061010,000345: 43,3501           54022                           TS       CYL                                   #  C(CYL) = 52524
061011,000346: 43,3502           54021                           TS       SR                                    #  C(SR) = 12525
061012,000347: 43,3503           54023                           TS       EDOP                                  #  C(EDOP) = 00125
061013,000348: 43,3504           60020                           AD       CYR                                   #  37777         C(CYR) = 45252
061014,000349: 43,3505           60022                           AD       CYL                                   #  00-12524      C(CYL) = 25251
061015,000350: 43,3506           60021                           AD       SR                                    #  00-25251      C(SR) = 05252
061016,000351: 43,3507           60023                           AD       EDOP                                  #  00-25376      C(EDOP) = +0
061017,000352: 43,3510           63244                           AD       CONC+S2                               #  C(CONC+S2) = 52400
061018,000353: 43,3511           03275                           TC       -1CHK                                 
061019,000354: 43,3512           60020                           AD       CYR                                   #  45252
061020,000355: 43,3513           60022                           AD       CYL                                   #  72523
061021,000356: 43,3514           60021                           AD       SR                                    #  77775
061022,000357: 43,3515           60023                           AD       EDOP                                  #  77775
061023,000358: 43,3516           65017                           AD       S+1                                   #  77776
061024,000359: 43,3517           03275                           TC       -1CHK                                 
061025,000360: 
061026,000361: 43,3520           25367                           INCR     SCOUNT     +1                         
061027,000362: 43,3521           03303                           TC       SMODECHK                              
061028,000363: 
061029,000364:                                                                                                  #  SKEEP1 HOLDS SUM
061030,000365:                                                                                                  #  SKEEP2 HOLDS PRESENT CONTENTS OF ADDRESS IN ROPECHK AND SHOWSUM ROUTINES
061031,000366:                                                                                                  #  SKEEP2 HOLDS BANK NUMBER IN LOW ORDER BITS DURING SHOWSUM DISPLAY
061032,000367:                                                                                                  #  SKEEP3 HOLDS PRESENT ADDRESS (00000 TO 01777 IN COMMON FIXED BANKS)
061033,000368:                                                                                                  #                               (04000 TO 07777 IN FXFX BANKS)
061034,000369:                                                                                                  #  SKEEP3 HOLDS BUGGER WORD DURING SHOWSUM DISPLAY
061035,000370:                                                                                                  #  SKEEP4 HOLDS BANK NUMBER AND SUPER BANK NUMBER
061036,000371:                                                                                                  #  SKEEP5 COUNTS 2 SUCCESSIVE TC SELF WORDS
061037,000372:                                                                                                  #  SKEEP6 CONTROLS ROPECHK OR SHOWSUM OPTION
061038,000373:                                                                                                  #  SKEEP7 CONTROLS WHEN ROUNTINE IS IN COMMON FIXED OR FIXED FIXED BANKS
061039,000374: 
061040,000375: 43,3522           35020        ROPECHK            CA       S-ZERO                                #  *
061041,000376: 43,3523           55376                           TS       SKEEP6                                #  * -0 FOR ROPECHK.
061042,000377: 43,3524           35021        STSHOSUM           CA       S+ZERO                                #  * SHOULD BE ROPECHK
061043,000378: 
061044,000379: 43,3525           55374                           TS       SKEEP4                                #  BANK NUMBER
061045,000380: 43,3526           35017                           CA       S+1                                   
061046,000381: 43,3527           55377        COMMFX             TS       SKEEP7                                
061047,000382: 43,3530           35021                           CA       S+ZERO                                
061048,000383: 43,3531           55371                           TS       SKEEP1                                
061049,000384: 43,3532           55373                           TS       SKEEP3                                
061050,000385: 43,3533           35017                           CA       S+1                                   
061051,000386: 43,3534           55375                           TS       SKEEP5                                #  COUNTS DOWN 2 TC SELF WORDS
061052,000387: 43,3535           31374        COMADRS            CA       SKEEP4                                
061053,000388: 43,3536           54001                           TS       L                                     #  TO SET SUPER BANK

Page 1401

061055,000390: 43,3537           74364                           MASK     HI5                                   
061056,000391: 43,3540           61373                           AD       SKEEP3                                
061057,000392: 43,3541           04715                           TC       SUPDACAL                              #  SUPER DATA CALL
061058,000393: 43,3542           03565                           TC       ADSUM                                 
061059,000394: 43,3543           65005                           AD       SBIT11                                #  02000
061060,000395: 43,3544           03576                           TC       ADRSCHK                               
061061,000396: 
061062,000397: 43,3545           40000        FXFX               CS       A                                     
061063,000398: 43,3546           55377                           TS       SKEEP7                                
061064,000399: 43,3547           00006                           EXTEND                                         
061065,000400: 43,3550           13553                           BZF      +3                                    
061066,000401: 43,3551           35004                           CA       SBIT12                                #  04000, STARTING ADDRESS OF BANK 02
061067,000402: 43,3552           03554                           TC       +2                                    
061068,000403: 43,3553           35062                           CA       SBNK03                                #  06000, STARTING ADDRESS OF BANK 03
061069,000404: 43,3554           55373                           TS       SKEEP3                                
061070,000405: 43,3555           35021                           CA       S+ZERO                                
061071,000406: 43,3556           55371                           TS       SKEEP1                                
061072,000407: 43,3557           35017                           CA       S+1                                   
061073,000408: 43,3560           55375                           TS       SKEEP5                                #  COUNTS DOWN 2 TC SELF WORDS
061074,000409: 43,3561           51373        FXADRS             INDEX    SKEEP3                                
061075,000410: 43,3562           30000                           CA       0000                                  
061076,000411: 43,3563           03565                           TC       ADSUM                                 
061077,000412: 43,3564           03576                           TC       ADRSCHK                               
061078,000413: 
061079,000414: 43,3565           55372        ADSUM              TS       SKEEP2                                
061080,000415: 43,3566           61371                           AD       SKEEP1                                
061081,000416: 43,3567           55371                           TS       SKEEP1                                
061082,000417: 43,3570           35021                           CAF      S+ZERO                                
061083,000418: 43,3571           61371                           AD       SKEEP1                                
061084,000419: 43,3572           55371                           TS       SKEEP1                                
061085,000420: 43,3573           41372                           CS       SKEEP2                                
061086,000421: 43,3574           61373                           AD       SKEEP3                                
061087,000422: 43,3575           00002                           TC       Q                                     
061088,000423: 
061089,000424: 43,3576           22000        ADRSCHK            LXCH     A                                     
061090,000425: 43,3577           31373                           CA       SKEEP3                                
061091,000426: 43,3600           75054                           MASK     LOW10                                 #  RELATIVE ADDRESS
061092,000427: 43,3601           64364                           AD       -MAXADRS                              #  SUBTRACT MAX RELATIVE ADDRESS = 1777.
061093,000428: 43,3602           00006                           EXTEND                                         
061094,000429: 43,3603           13672                           BZF      SOPTION                               #  CHECKSUM FINISHED IF LAST ADDRESS.
061095,000430: 43,3604           11375                           CCS      SKEEP5                                #  IS CHECKSUM FINISHED
061096,000431: 43,3605           03610                           TC       +3                                    #  NO
061097,000432: 43,3606           03610                           TC       +2                                    #  NO
061098,000433: 43,3607           03672                           TC       SOPTION                               #  GO TO ROPECHK SHOWSUM OPTION
061099,000434: 43,3610           10001                           CCS      L                                     #  -0 MEANS A TC SELF WORD.
061100,000435: 43,3611           03620                           TC       CONTINU                               
061101,000436: 43,3612           03620                           TC       CONTINU                               
061102,000437: 43,3613           03620                           TC       CONTINU                               
061103,000438: 43,3614           11375                           CCS      SKEEP5                                
061104,000439: 43,3615           03621                           TC       CONTINU    +1                         

Page 1402

061106,000441: 43,3616           37716                           CA       S-1                                   
061107,000442: 43,3617           03621                           TC       CONTINU    +1                         #  AD IN THE BUGGER WORD
061108,000443: 43,3620           35017        CONTINU            CA       S+1                                   #  MAKE SURE TWO CONSECUTIVE TC SELF WORDS
061109,000444: 43,3621           55375                           TS       SKEEP5                                
061110,000445: 43,3622           11376                           CCS      SKEEP6                                #  *
061111,000446: 43,3623           10067                           CCS      NEWJOB                                #  * +1, SHOWSUM
061112,000447: 43,3624           05164                           TC       CHANG1                                #  *
061113,000448: 43,3625           03627                           TC       +2                                    #  *
061114,000449: 43,3626           03334                           TC       CHECKNJ                               #  -0 IN SKEEP6 FOR ROPECHK
061115,000450: 
061116,000451: 43,3627           25373        ADRS+1             INCR     SKEEP3                                
061117,000452: 43,3630           11377                           CCS      SKEEP7                                
061118,000453: 43,3631           03535                           TC       COMADRS                               
061119,000454: 43,3632           03535                           TC       COMADRS                               
061120,000455: 43,3633           03561                           TC       FXADRS                                
061121,000456: 43,3634           03561                           TC       FXADRS                                
061122,000457: 
061123,000458: 43,3635           41374        NXTBNK             CS       SKEEP4                                
061124,000459: 43,3636           63725                           AD       LSTBNKCH                              #  LAST BANK TO BE CHECKED
061125,000460: 43,3637           00006                           EXTEND                                         
061126,000461: 43,3640           13011                           BZF      ENDSUMS                               #  END OF SUMMING OF BANKS.
061127,000462: 43,3641           31374                           CA       SKEEP4                                
061128,000463: 43,3642           65005                           AD       SBIT11                                
061129,000464: 43,3643           55374                           TS       SKEEP4                                #  37 TO 40 INCRMTS SKEEP4 BY END RND CARRY
061130,000465: 43,3644           03650                           TC       CHKSUPR                               
061131,000466: 43,3645           35001        17TO20             CA       SBIT15                                
061132,000467: 43,3646           27374                           ADS      SKEEP4                                #  SET FOR BANK 20
061133,000468: 43,3647           03664                           TC       GONXTBNK                              
061134,000469: 43,3650           74364        CHKSUPR            MASK     HI5                                   
061135,000470: 43,3651           00006                           EXTEND                                         
061136,000471: 43,3652           13662                           BZF      NXTSUPR                               #  INCREMENT SUPER BANK
061137,000472: 43,3653           63242        27TO30             AD       S13BITS                               
061138,000473: 43,3654           00006                           EXTEND                                         
061139,000474: 43,3655           13657                           BZF      +2                                    #  BANK SET FOR 30
061140,000475: 43,3656           03664                           TC       GONXTBNK                              
061141,000476: 43,3657           33240                           CA       SIXTY                                 #  FIRST SUPER BANK
061142,000477: 43,3660           27374                           ADS      SKEEP4                                
061143,000478: 43,3661           03664                           TC       GONXTBNK                              
061144,000479: 43,3662           63241        NXTSUPR            AD       SUPRCON                               #  SET BNK 30 + INCR SUPR BNK AND CANCEL
061145,000480: 43,3663           27374                           ADS      SKEEP4                                #  ERC BIT OF THE 37 TO 40 ADVANCE.
061146,000481: 43,3664           11377        GONXTBNK           CCS      SKEEP7                                
061147,000482: 43,3665           03527                           TC       COMMFX                                
061148,000483: 43,3666           35017                           CA       S+1                                   
061149,000484: 43,3667           03545                           TC       FXFX                                  
061150,000485: 43,3670           35011                           CA       SBIT7                                 #  HAS TO BE LARGER THAN NO OF FXSW BANKS.
061151,000486: 43,3671           03527                           TC       COMMFX                                
061152,000487: 
061153,000488: 43,3672           31374        SOPTION            CA       SKEEP4                                
061154,000489: 43,3673           74364                           MASK     HI5                                   #  = BANK BITS
061155,000490: 43,3674           04345                           TC       LEFT5                                 

Page 1403

061157,000492: 43,3675           54001                           TS       L                                     #  BANK NUMBER BEFORE SUPER BANK
061158,000493: 43,3676           31374                           CA       SKEEP4                                
061159,000494: 43,3677           74373                           MASK     S8BITS                                #  = SUPER BANK BITS
061160,000495: 43,3700           00006                           EXTEND                                         
061161,000496: 43,3701           13707                           BZF      SOPT                                  #  BEFORE SUPER BANK
061162,000497: 43,3702           54021                           TS       SR                                    #  SUPER BANK NECESSARY
061163,000498: 43,3703           30001                           CA       L                                     
061164,000499: 43,3704           75023                           MASK     SEVEN                                 
061165,000500: 43,3705           60021                           AD       SR                                    
061166,000501: 43,3706           54001                           TS       L                                     #  BANK NUMBER WITH SUPER BANK
061167,000502: 43,3707           31376        SOPT               CA       SKEEP6                                #  *
061168,000503: 43,3710           00006                           EXTEND                                         #  *
061169,000504: 43,3711           13713                           BZF      +2                                    #  * ON -0 CONTINUE WITH ROPE CHECK.
061170,000505: 43,3712           02773                           TC       SDISPLAY                              #  * ON +1 GO TO DISPLAY OF SUM.
061171,000506: 43,3713           11371                           CCS      SKEEP1                                #  FORCE SUM TO ABSOLUTE VALUE.
061172,000507: 43,3714           03716                           TC       +2                                    
061173,000508: 43,3715           03717                           TC       +2                                    
061174,000509: 43,3716           65017                           AD       S+1                                   
061175,000510: 43,3717           55371                           TS       SKEEP1                                
061176,000511: 43,3720           40001        BNKCHK             CS       L                                     #  = - BANK NUMBER
061177,000512: 43,3721           61371                           AD       SKEEP1                                
061178,000513: 43,3722           67716                           AD       S-1                                   
061179,000514: 43,3723           03275                           TC       -1CHK                                 #  CHECK SUM
061180,000515: 43,3724           03635                           TC       NXTBNK                                
061181,000516: 
061182,000517: 43,3725     0067                                  EBANK=   NEWJOB                                
061183,000518: 43,3725           66100        LSTBNKCH           BBCON*                                         #  * CONSTANT, LAST BANK.
061184,000519: 43,3726  30,2000                                  SBANK=   LOWSUPER                              
061185,000520: 
061186,000521: 

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