Source Code

These source-code files were derived originally from the scan from MIT's Dibner Institute's now-discontinued website titled "History of Recent Science and Technology". It is believed that the original listing was preserved by AGC developer Don Eyles, copied/reduced by AGC developer Hugh Blair-Smith, passed by AGC developer James Kernan to collector David Craig, scanned by Gary Neff, and then passed to the Dibner Institute where unfortunately the high-quality scans were reduced in legibility as part of the online-presentation process, and the original scans discarded. The source code was transcribed from those images by Ron Burkey. The images from the Dibner Institute website, and unfortunately not the discarded original high-quality scans, though with a few high-quality replacement scans provided directly by Gary Neff, are now available at the Virtual AGC project website. Report any conversion errors to info@sandroid.org. Notations on the program listing read, in part:

	GAP:  ASSEMBLE REVISION 131 OF AGC PROGRAM LUMINARY BY NASA 2021112-091
	17:53 DEC. 19, 1969
Note that the date is the date of the printout, not the date of the program revision.

053118,000002:                                                                                                  ## Copyright:   Public domain.
053119,000003:                                                                                                  ## Filename:    AGC_BLOCK_TWO_SELF_CHECK.agc
053120,000004:                                                                                                  ## Purpose:     A section of Luminary 1C, revision 131.
053121,000005:                                                                                                  ##              It is part of the source code for the Lunar Module's (LM)
053122,000006:                                                                                                  ##              Apollo Guidance Computer (AGC) for Apollo 13 and Apollo 14.
053123,000007:                                                                                                  ##              This file is intended to be a faithful transcription, except
053124,000008:                                                                                                  ##              that the code format has been changed to conform to the
053125,000009:                                                                                                  ##              requirements of the yaYUL assembler rather than the
053126,000010:                                                                                                  ##              original YUL assembler.
053127,000011:                                                                                                  ## Reference:   pp. 1281-1290 of 1729.pdf.
053128,000012:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.
053129,000013:                                                                                                  ## Website:     www.ibiblio.org/apollo/index.html
053130,000014:                                                                                                  ## Mod history: 06/05/03 RSB.   Began transcribing.
053131,000015:                                                                                                  ##              05/14/05 RSB    Corrected website reference above.
053132,000016: 

Page 1281

053134,000018:                                                                                                  #  PROGRAM DESCRIPTION                           DATE:  20 DECEMBER 1967
053135,000019:                                                                                                  #  PROGRAM NAME -- SELF-CHECK                    LOG SECTION:  AGC BLOCK TWO SELF-CHECK
053136,000020:                                                                                                  #  MOD NO -- 1                                   ASSEMBLY SUBROUTINE UTILITYM REV 25
053137,000021:                                                                                                  #  MOD BY -- GAUNTT
053138,000022: 
053139,000023:                                                                                                  #  FUNCTIONAL DESCRIPTION
053140,000024:                                                                                                  #        PROGRAM HAS TWO MAIN PARTS.  THE FIRST IS SELF-CHECK WHICH RUNS AS A ZERO PRIORITY JOB WITH NO CORE SET, AS
053141,000025:                                                                                                  #        PART OF THE BACK-UP IDLE LOOP.  THE SECOND IS SHOW-BANKSUM WHICH RUNS AS A REGULAR EXECUTIVE JOB WITH ITS OWN
053142,000026:                                                                                                  #        STARTING VERB.
053143,000027: 
053144,000028:                                                                                                  #        THE PURPOSE OF SELF-CHECK IS TO CHECK OUT VARIOUS PARTS OF THE COMPUTER AS OUTLINED BELOW IN THE OPTIONS.
053145,000029: 
053146,000030:                                                                                                  #        THE PURPOSE OF SHOW-BANKSUM IS TO DISPLAY THE SUM OF EACH BANK, ONE AT A TIME.
053147,000031: 
053148,000032:                                                                                                  #        IN ALL THERE ARE 7 POSSIBLE OPTIONS IN THIS BLOCK II VERSION OF SELF-CHECK.  MORE DETAIL DESCRIPTION MAY BE
053149,000033:                                                                                                  #        FOUND IN E-2065 BLOCK II AGC SELF-CHECK AND SHOW BANKSUM BY EDWIN D. SMALLY DECEMBER 1966, AND ADDENDA 2 AND 3.
053150,000034: 
053151,000035:                                                                                                  #        THE DIFFERENT OPTIONS ARE CONTROLLED BY PUTTING DIFFERENT NUMBERS IN THE SMODE REGISTER (NOUN 27).  BELOW IS
053152,000036:                                                                                                  #        A DESCRIPTION OF WHAT PARTS OF THE COMPUTER THAT ARE CHECKED BY THE OPTIONS, AND THE CORRESPONDING NUMBER, IN
053153,000037:                                                                                                  #        OCTAL, TO LOAD INTO SMODE.
053154,000038:                                                                                                  #                +-4             ERASABLE MEMORY
053155,000039:                                                                                                  #                +-5             FIXED MEMORY
053156,000040:                                                                                                  #                +-1,2,3,6,7,10  EVERYTHING IN OPTIONS 4 AND 5.
053157,000041:                                                                                                  #                -0              SAME AS +-10 UNTIL AN ERROR IS DETECTED.
053158,000042:                                                                                                  #                +0              NO CHECK, PUTS COMPUTER INTO THE BACKUP IDLE LOOP.
053159,000043: 
053160,000044:                                                                                                  #  WARNINGS
053161,000045:                                                                                                  #        USE OF E MEMORY RESERVED FOR SELF-CHECK (EVEN IN IDLE LOOP) AS TEMP STORAGE BY OTHER PROGRAMS IS DANGEROUS.
053162,000046:                                                                                                  #        SMODE SET GREATER THAN OCT 10 PUTS COMPUTER INTO BACKUP IDLE LOOP.
053163,000047: 
053164,000048:                                                                                                  #  CALLING SEQUENCE
053165,000049:                                                                                                  #        TO CALL SELF-CHECK KEY IN
053166,000050:                                                                                                  #                V 21 N 27 E     OPTION NUMBER E
053167,000051:                                                                                                  #        TO CALL SHOW-BANKSUM KEY IN
053168,000052:                                                                                                  #                V 91 E          DISPLAYS FIRST BANK
053169,000053:                                                                                                  #                V 33 E          PROCEED, DISPLAYS NEXT BANK
053170,000054: 
053171,000055:                                                                                                  #  EXIT MODES, NORMAL AND ALARM
053172,000056:                                                                                                  #        SELF-CHECK NORMALLY CONTINUES INDEFINITELY UNLESS THERE IS AN ERROR DETECTED.  IF SO + OPTION NUMBERS PUT
053173,000057:                                                                                                  #        COMPUTER INTO BACKUP IDLE LOOP, - OPTIONS NUMBERS RESTART THE OPTION.
053174,000058: 
053175,000059:                                                                                                  #        THE -0 OPTION PROCEEDS FROM THE LINE FOLLOWING THE LINE WHERE THE ERROR WAS DETECTED.
053176,000060: 
053177,000061:                                                                                                  #        SHOW-BANKSUM PROCEEDS UNTIL A TERMINATE IS KEYED IN (V 34 E).  THE COMPUTER IS PUT INTO THE BACKUP IDLE LOOP.
053178,000062: 
053179,000063:                                                                                                  #  OUTPUT

Page 1282

053181,000065:                                                                                                  #        SELF-CHECK UPON DETECTING AN ERROR LOADS THE SELF-CHECK ALARM CONSTANT (01102) INTO THE FAILREG SET AND
053182,000066:                                                                                                  #        TURNS ON THE ALARM LIGHT.  THE OPERATOR MAY THEN DISPLAY THE THREE FAILREGS BY KEYING IN V 05 N 09 E.  FOR FURTHER
053183,000067:                                                                                                  #        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,
053184,000068:                                                                                                  #        IN R2 THE BBCON OF SELF-CHECK, AND IN R3 THE TOTAL NUMBER OF ERRORS DETECTED BY SELF-CHECK SINCE THE LAST MAN
053185,000069:                                                                                                  #        INITIATED FRESH START (SLAP1).
053186,000070: 
053187,000071:                                                                                                  #        SHOW-BANKSUM STARTING WTIH BANK 0 DISPLAYS IN R1 THE BANK SUM (A +-NUMBER EQUAL TO THE BANK NUMBER), IN R2
053188,000072:                                                                                                  #        THE BANK NUMBER, AND IN R3 THE BUGGER WORD.
053189,000073: 
053190,000074:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
053191,000075:                                                                                                  #        ACCOMPLISHED BY FRESH START
053192,000076:                                                                                                  #                SMODE SET TO +0
053193,000077: 
053194,000078:                                                                                                  #  DEBRIS
053195,000079:                                                                                                  #        ALL EXITS FROM THE CHECK OF ERASABLE (ERASCHK) RESTORE ORIGINAL CONTENTS TO REGISTERS UNDER CHECK.
053196,000080:                                                                                                  #        EXCEPTION IS A RESTART.  RESTART THAT OCCURS DURING ERASCHK RESTORES ERASABLE, UNLESS THERE IS EVIDENCE TO DOUBT
053197,000081:                                                                                                  #        E MEMORY, IN WHICH CASE PROGRAM THEN DOES A FRESH START (DOFSTART).
053198,000082: 
053199,000083: 25,3757                                           BANK     25                                    
053200,000084: 43,2000                                           SETLOC   SELFCHEC                              
053201,000085: 43,2000                                           BANK                                           
053202,000086: 
053203,000087: 43,3257                                           COUNT*   $$/SELF                               
053204,000088: 43,3257     4753               SBIT1              EQUALS   BIT1                                  
053205,000089: 43,3257     4752               SBIT2              EQUALS   BIT2                                  
053206,000090: 43,3257     4751               SBIT3              EQUALS   BIT3                                  
053207,000091: 43,3257     4750               SBIT4              EQUALS   BIT4                                  
053208,000092: 43,3257     4747               SBIT5              EQUALS   BIT5                                  
053209,000093: 43,3257     4746               SBIT6              EQUALS   BIT6                                  
053210,000094: 43,3257     4745               SBIT7              EQUALS   BIT7                                  
053211,000095: 43,3257     4744               SBIT8              EQUALS   BIT8                                  
053212,000096: 43,3257     4743               SBIT9              EQUALS   BIT9                                  
053213,000097: 43,3257     4742               SBIT10             EQUALS   BIT10                                 
053214,000098: 43,3257     4741               SBIT11             EQUALS   BIT11                                 
053215,000099: 43,3257     4740               SBIT12             EQUALS   BIT12                                 
053216,000100: 43,3257     4737               SBIT13             EQUALS   BIT13                                 
053217,000101: 43,3257     4736               SBIT14             EQUALS   BIT14                                 
053218,000102: 43,3257     4735               SBIT15             EQUALS   BIT15                                 
053219,000103: 
053220,000104: 43,3257     4755               S+ZERO             EQUALS   ZERO                                  
053221,000105: 43,3257     4753               S+1                EQUALS   BIT1                                  
053222,000106: 43,3257     4752               S+2                EQUALS   BIT2                                  
053223,000107: 43,3257     6250               S+3                EQUALS   THREE                                 
053224,000108: 43,3257     4751               S+4                EQUALS   FOUR                                  
053225,000109: 43,3257     4756               S+5                EQUALS   FIVE                                  
053226,000110: 43,3257     6245               S+6                EQUALS   SIX                                   

Page 1283

053228,000112: 43,3257     4757               S+7                EQUALS   SEVEN                                 
053229,000113: 43,3257     4357               S8BITS             EQUALS   LOW8                                  #  00377
053230,000114: 43,3257     4771               CNTRCON            =        OCT50                                 #  USED IN CNTRCHK
053231,000115: 43,3257           00061        ERASCON1           OCTAL    00061                                 #  USED IN ERASCHK
053232,000116: 43,3260           01373        ERASCON2           OCTAL    01373                                 #  USED IN ERASCHK
053233,000117: 43,3261     5007               ERASCON6           =        OCT1400                               #  USED IN ERASCHK
053234,000118: 43,3261           01461        ERASCON3           OCTAL    01461                                 #  USED IN ERASCHK
053235,000119: 43,3262           01773        ERASCON4           OCTAL    01773                                 #  USED IN ERASCHK
053236,000120: 43,3263     5012               S10BITS            EQUALS   LOW10                                 #  01777, USED IN ERASCHK
053237,000121: 43,3263     5020               SBNK03             EQUALS   PRIO6                                 #  06000, USED IN ROPECHK
053238,000122: 43,3263     4350               -MAXADRS           =        HI5                                   #  FOR ROPECHK
053239,000123: 43,3263           00060        SIXTY              OCTAL    00060                                 
053240,000124: 43,3264           60017        SUPRCON            OCTAL    60017                                 #  USED IN ROPECHK
053241,000125: 43,3265           17777        S13BITS            OCTAL    17777                                 
053242,000126: 43,3266           25252        CONC+S1            OCTAL    25252                                 #  USED IN CYCLSHFT
053243,000127: 43,3267           52400        CONC+S2            OCTAL    52400                                 #  USED IN CYCLSHFT
053244,000128: 43,3270           76777        ERASCON5           OCTAL    76777                                 
053245,000129: 43,3271     5650               S-7                =        OCT77770                              
053246,000130: 43,3271     6115               S-4                EQUALS   NEG4                                  
053247,000131: 43,3271     7750               S-3                EQUALS   NEG3                                  
053248,000132: 43,3271     7751               S-2                EQUALS   NEG2                                  
053249,000133: 43,3271     7752               S-1                EQUALS   NEGONE                                
053250,000134: 43,3271     4754               S-ZERO             EQUALS   NEG0                                  
053251,000135: 
053252,000136: 43,3271  E3,1400                                  EBANK=   LST1                                  
053253,000137: 43,3271           01371        ADRS1              ADRES    SKEEP1                                
053254,000138: 43,3272           03363        SELFADRS           ADRES    SELFCHK                               #  SELFCHK RETURN ADDRESS.  SHOULD BE PUT
053255,000139:                                                                                                  #  IN SELFRET WHEN GOING FROM SELFCHK TO
053256,000140:                                                                                                  #  SHOWSUM AND PUT IN SKEEP1 WHEN GOING
053257,000141:                                                                                                  #  FROM SHOWSUM TO SELF-CHECK.
053258,000142: 
053259,000143: 43,3273           31360        PRERRORS           CA       ERESTORE                              #  IS IT NECESSARY TO RESTORE ERASABLE
053260,000144: 43,3274           00006                           EXTEND                                         
053261,000145: 43,3275           13304                           BZF      ERRORS                                #  NO
053262,000146: 43,3276           00006                           EXTEND                                         
053263,000147: 43,3277           31376                           DCA      SKEEP5                                
053264,000148: 43,3300           51377                           INDEX    SKEEP7                                
053265,000149: 43,3301           52001                           DXCH     0000                                  #  RESTORE THE TWO ERASABLE REGISTERS
053266,000150: 43,3302           34755                           CA       S+ZERO                                
053267,000151: 43,3303           55360                           TS       ERESTORE                              
053268,000152: 43,3304           00004        ERRORS             INHINT                                         
053269,000153: 43,3305           30002                           CA       Q                                     
053270,000154: 43,3306           55357                           TS       SFAIL                                 #  SAVE Q FOR FAILURE LOCATION
053271,000155: 43,3307           55363                           TS       ALMCADR                               #  FOR DISPLAY WITH BBANK AND ERCOUNT
053272,000156: 43,3310           25365                           INCR     ERCOUNT                               #  KEEP TRACK OF NUMBER OF MALFUNCTIONS.
053273,000157: 43,3311           05571        TCALARM2           TC       ALARM2                                
053274,000158: 43,3312           01102                           OCT      01102                                 #  SELF-CHECK MALFUNCTION INDICATOR
053275,000159: 43,3313           11362                           CCS      SMODE                                 
053276,000160: 43,3314           34755        SIDLOOP            CA       S+ZERO                                
053277,000161: 43,3315           55362                           TS       SMODE                                 

Page 1284

053279,000163: 43,3316           03363                           TC       SELFCHK                               #  GO TO IDLE LOOP
053280,000164: 43,3317           01357                           TC       SFAIL                                 #  CONTINUE WITH SELF-CHECK
053281,000165: 
053282,000166: 43,3320           10000        -1CHK              CCS      A                                     
053283,000167: 43,3321           13273                           TCF      PRERRORS                              
053284,000168: 43,3322           13273                           TCF      PRERRORS                              
053285,000169: 43,3323           10000                           CCS      A                                     
053286,000170: 43,3324           13273                           TCF      PRERRORS                              
053287,000171: 43,3325           00002                           TC       Q                                     
053288,000172: 
053289,000173: 43,3326           00006        SMODECHK           EXTEND                                         
053290,000174: 43,3327           23371                           QXCH     SKEEP1                                
053291,000175: 43,3330           03357                           TC       CHECKNJ                               #  CHECK FOR NEW JOB
053292,000176: 43,3331           11362                           CCS      SMODE                                 
053293,000177: 43,3332           03337                           TC       SOPTIONS                              
053294,000178: 43,3333           03330                           TC       SMODECHK   +2                         #  TO BACKUP IDLE LOOP
053295,000179: 43,3334           03337                           TC       SOPTIONS                              
053296,000180: 43,3335           25366                           INCR     SCOUNT                                
053297,000181: 43,3336           01371                           TC       SKEEP1                                #  CONTINUE WITH SELF-CHECK
053298,000182: 
053299,000183: 43,3337           65650        SOPTIONS           AD       S-7                                   
053300,000184: 43,3340           00006                           EXTEND                                         
053301,000185: 43,3341           63343                           BZMF     +2                                    #  FOR OPTIONS BELOW NINE.
053302,000186: 43,3342           03314        BNKOPTN            TC       SIDLOOP                               #  ILLEGAL OPTION.  GO TO IDLE LOOP.
053303,000187: 43,3343           25366                           INCR     SCOUNT                                #  FOR OPTIONS BELOW NINE.
053304,000188: 43,3344           64757                           AD       S+7                                   
053305,000189: 
053306,000190: 43,3345           50000                           INDEX    A                                     
053307,000191: 43,3346           03347                           TC       SOPTION1                              
053308,000192: 43,3347           01371        SOPTION1           TC       SKEEP1                                #  WAS TC+TCF
053309,000193: 43,3350           01371        SOPTION2           TC       SKEEP1                                #  WAS IN:OUT1
053310,000194: 43,3351           01371        SOPTION3           TC       SKEEP1                                
053311,000195: 43,3352           03364        SOPTION4           TC       ERASCHK                               
053312,000196: 43,3353           03545        SOPTION5           TC       ROPECHK                               
053313,000197: 43,3354           01371        SOPTION6           TC       SKEEP1                                
053314,000198: 43,3355           01371        SOPTION7           TC       SKEEP1                                
053315,000199: 43,3356           01371        SOPTON10           TC       SKEEP1                                #  CONTINUE WITH SELF-CHECK
053316,000200: 
053317,000201: 43,3357           00006        CHECKNJ            EXTEND                                         
053318,000202: 43,3360           23361                           QXCH     SELFRET                               #  SAVE RETURN ADDRESS WHILE TESTING NEWJOB
053319,000203: 43,3361           04635                           TC       POSTJUMP                              #  TO SEE IF ANY JOBS HAVE BECOME ACTIVE.
053320,000204: 43,3362           03215                           CADR     ADVAN                                 
053321,000205: 
053322,000206: 43,3363           03326        SELFCHK            TC       SMODECHK                              #  ** CHARLEY, COME IN HERE
053323,000207: 
053324,000208:                                                                                                  #  SKEEP7 HOLDS LOWEST OF TWO ADDRESSES BEING CHECKED.
053325,000209:                                                                                                  #  SKEEP6 HOLDS B(X+1).
053326,000210:                                                                                                  #  SKEEP5 HOLDS B(X).
053327,000211:                                                                                                  #  SKEEP4 HOLDS C(EBANK) DURING ERASLOOP AND CHECKNJ
053328,000212:                                                                                                  #  SKEEP3 HOLDS LAST ADDRESS BEING CHECKED (HIGHEST ADDRESS).

Page 1285

053330,000214:                                                                                                  #  SKEEP2 CONTROLS CHECKING OF NON-SWITCHABLE ERASABLE MEMORY WITH BANK NUMBERS IN EB.
053331,000215: 
053332,000216:                                                                                                  #  ERASCHK TAKES APPROXIMATELY 7 SECONDS.
053333,000217: 
053334,000218: 43,3364           34753        ERASCHK            CA       S+1                                   
053335,000219: 43,3365           55372                           TS       SKEEP2                                
053336,000220: 43,3366           34755        0EBANK             CA       S+ZERO                                
053337,000221: 43,3367           54003                           TS       EBANK                                 
053338,000222: 43,3370           33261                           CA       ERASCON3                              #  01461
053339,000223: 43,3371           55377                           TS       SKEEP7                                #  STARTING ADDRESS
053340,000224: 43,3372           35012                           CA       S10BITS                               #  01777
053341,000225: 43,3373           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
053342,000226: 43,3374           03414                           TC       ERASLOOP                              
053343,000227: 
053344,000228: 43,3375           35007        E134567B           CA       ERASCON6                              #  01400
053345,000229: 43,3376           55377                           TS       SKEEP7                                #  STARTING ADDRESS
053346,000230: 43,3377           35012                           CA       S10BITS                               #  01777
053347,000231: 43,3400           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
053348,000232: 43,3401           03414                           TC       ERASLOOP                              
053349,000233: 
053350,000234: 43,3402           35007        2EBANK             CA       ERASCON6                              #  01400
053351,000235: 43,3403           55377                           TS       SKEEP7                                #  STARTING ADDRESS
053352,000236: 43,3404           33262                           CA       ERASCON4                              #  01773
053353,000237: 43,3405           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
053354,000238: 43,3406           03414                           TC       ERASLOOP                              
053355,000239: 
053356,000240: 43,3407           55372        NOEBANK            TS       SKEEP2                                #  +0
053357,000241: 43,3410           33257                           CA       ERASCON1                              #  00061
053358,000242: 43,3411           55377                           TS       SKEEP7                                #  STARTING ADDRESS
053359,000243: 43,3412           33260                           CA       ERASCON2                              #  01373
053360,000244: 43,3413           55373                           TS       SKEEP3                                #  LAST ADDRESS CHECKED
053361,000245: 
053362,000246: 43,3414           00004        ERASLOOP           INHINT                                         
053363,000247: 43,3415           30003                           CA       EBANK                                 #  STORES C(EBANK)
053364,000248: 43,3416           55374                           TS       SKEEP4                                
053365,000249: 43,3417           00006                           EXTEND                                         
053366,000250: 43,3420           51377                           NDX      SKEEP7                                
053367,000251: 43,3421           30001                           DCA      0000                                  
053368,000252: 43,3422           53376                           DXCH     SKEEP5                                #  STORES C(X) AND C(X+1) IN SKEEP6 AND 5.
053369,000253: 43,3423           31377                           CA       SKEEP7                                
053370,000254: 43,3424           55360                           TS       ERESTORE                              #  IF RESTART, RESTORE C(X) AND C(X+1)
053371,000255: 43,3425           54001                           TS       L                                     
053372,000256: 43,3426           24001                           INCR     L                                     
053373,000257: 43,3427           50000                           NDX      A                                     
053374,000258: 43,3430           52001                           DXCH     0000                                  #  PUTS OWN ADDRESS IN X AND X +1
053375,000259: 43,3431           51377                           NDX      SKEEP7                                
053376,000260: 43,3432           40001                           CS       0001                                  #  CS X+1
053377,000261: 43,3433           51377                           NDX      SKEEP7                                
053378,000262: 43,3434           60000                           AD       0000                                  #  AD X
053379,000263: 43,3435           03320                           TC       -1CHK                                 
053380,000264: 43,3436           31360                           CA       ERESTORE                              #  HAS ERASABLE BEEN RESTORED
053381,000265: 43,3437           00006                           EXTEND                                         

Page 1286

053383,000267: 43,3440           13464                           BZF      ELOOPFIN                              #  YES, EXIT ERASLOOP.
053384,000268: 43,3441           00006                           EXTEND                                         
053385,000269: 43,3442           51377                           NDX      SKEEP7                                
053386,000270: 43,3443           40001                           DCS      0000                                  #  COMPLEMENT OF ADDRESS OF X AND X+1
053387,000271: 43,3444           51377                           NDX      SKEEP7                                
053388,000272: 43,3445           52001                           DXCH     0000                                  #  PUT COMPLEMENT OF ADDRESS OF X AND X+1
053389,000273: 43,3446           51377                           NDX      SKEEP7                                
053390,000274: 43,3447           40000                           CS       0000                                  #  CS X
053391,000275: 43,3450           51377                           NDX      SKEEP7                                
053392,000276: 43,3451           60001                           AD       0001                                  #  AD X+1
053393,000277: 43,3452           03320                           TC       -1CHK                                 
053394,000278: 43,3453           31360                           CA       ERESTORE                              #  HAS ERASABLE BEEN RESTORED
053395,000279: 43,3454           00006                           EXTEND                                         
053396,000280: 43,3455           13464                           BZF      ELOOPFIN                              #  YES, EXIT ERASLOOP.
053397,000281: 43,3456           00006                           EXTEND                                         
053398,000282: 43,3457           31376                           DCA      SKEEP5                                
053399,000283: 43,3460           51377                           NDX      SKEEP7                                
053400,000284: 43,3461           52001                           DXCH     0000                                  #  PUT B(X) AND B(X+1) BACK INTO X AND X+1
053401,000285: 43,3462           34755                           CA       S+ZERO                                
053402,000286: 43,3463           55360                           TS       ERESTORE                              #  IF RESTART, DO NOT RESTORE C(X), C(X+1)
053403,000287: 43,3464           00003        ELOOPFIN           RELINT                                         
053404,000288: 43,3465           03357                           TC       CHECKNJ                               #  CHECK FOR NEW JOB
053405,000289: 43,3466           31374                           CA       SKEEP4                                #  REPLACES B(EBANK)
053406,000290: 43,3467           54003                           TS       EBANK                                 
053407,000291: 43,3470           25377                           INCR     SKEEP7                                
053408,000292: 43,3471           41377                           CS       SKEEP7                                
053409,000293: 43,3472           61373                           AD       SKEEP3                                
053410,000294: 43,3473           00006                           EXTEND                                         
053411,000295: 43,3474           13476                           BZF      +2                                    
053412,000296: 43,3475           03414                           TC       ERASLOOP                              #  GO TO NEXT ADDRESS IN SAME BANK
053413,000297: 43,3476           11372                           CCS      SKEEP2                                
053414,000298: 43,3477           03407                           TC       NOEBANK                               
053415,000299: 43,3500           25372                           INCR     SKEEP2                                #  PUT +1 IN SKEEP2.
053416,000300: 43,3501           30003                           CA       EBANK                                 
053417,000301: 43,3502           64743                           AD       SBIT9                                 
053418,000302: 43,3503           54003                           TS       EBANK                                 
053419,000303: 43,3504           63270                           AD       ERASCON5                              #  76777, CHECK FOR BANK E2
053420,000304: 43,3505           00006                           EXTEND                                         
053421,000305: 43,3506           13402                           BZF      2EBANK                                
053422,000306: 43,3507           10003                           CCS      EBANK                                 
053423,000307: 43,3510           03375                           TC       E134567B                              #  GO TO EBANKS 1,3,4,5,6, AND 7
053424,000308: 43,3511           35007                           CA       ERASCON6                              #  END OF ERASCHK
053425,000309: 43,3512           54003                           TS       EBANK                                 
053426,000310: 
053427,000311:                                                                                                  #  CNTRCHK PERFORMS A CS OF ALL REGISTERS FROM OCT. 60 THROUGH OCT. 10.
053428,000312:                                                                                                  #  INCLUDED ARE ALL COUNTERS, T6-1, CYCLE AND SHIFT, AND ALL RUPT REGISTERS
053429,000313: 
053430,000314: 43,3513           34771        CNTRCHK            CA       CNTRCON                               #  00050
053431,000315: 43,3514           55372        CNTRLOOP           TS       SKEEP2                                
053432,000316: 43,3515           64750                           AD       SBIT4                                 #  +10 OCTAL
053433,000317: 43,3516           50000                           INDEX    A                                     
053434,000318: 43,3517           40000                           CS       0000                                  

Page 1287

053436,000320: 43,3520           11372                           CCS      SKEEP2                                
053437,000321: 43,3521           03514                           TC       CNTRLOOP                              
053438,000322: 
053439,000323:                                                                                                  #  CYCLSHFT CHECKS THE CYCLE AND SHIFT REGISTERS
053440,000324: 
053441,000325: 43,3522           33266        CYCLSHFT           CA       CONC+S1                               #  25252
053442,000326: 43,3523           54020                           TS       CYR                                   #  C(CYR) = 12525
053443,000327: 43,3524           54022                           TS       CYL                                   #  C(CYL) = 52524
053444,000328: 43,3525           54021                           TS       SR                                    #  C(SR) = 12525
053445,000329: 43,3526           54023                           TS       EDOP                                  #  C(EDOP) = 00125
053446,000330: 43,3527           60020                           AD       CYR                                   #  37777         C(CYR) = 45252
053447,000331: 43,3530           60022                           AD       CYL                                   #  00-12524      C(CYL) = 25251
053448,000332: 43,3531           60021                           AD       SR                                    #  00-25251      C(SR) = 05252
053449,000333: 43,3532           60023                           AD       EDOP                                  #  00-25376      C(EDOP) = +0
053450,000334: 43,3533           63267                           AD       CONC+S2                               #  C(CONC+S2) = 52400
053451,000335: 43,3534           03320                           TC       -1CHK                                 
053452,000336: 43,3535           60020                           AD       CYR                                   #  45252
053453,000337: 43,3536           60022                           AD       CYL                                   #  72523
053454,000338: 43,3537           60021                           AD       SR                                    #  77775
053455,000339: 43,3540           60023                           AD       EDOP                                  #  77775
053456,000340: 43,3541           64753                           AD       S+1                                   #  77776
053457,000341: 43,3542           03320                           TC       -1CHK                                 
053458,000342: 
053459,000343: 43,3543           25367                           INCR     SCOUNT     +1                         
053460,000344: 43,3544           03326                           TC       SMODECHK                              
053461,000345: 
053462,000346:                                                                                                  #  SKEEP1 HOLDS SUM
053463,000347:                                                                                                  #  SKEEP2 HOLDS PRESENT CONTENTS OF ADDRESS IN ROPECHK AND SHOWSUM ROUTINES
053464,000348:                                                                                                  #  SKEEP2 HOLDS BANK NUMBER IN LOW ORDER BITS DURING SHOWSUM DISPLAY
053465,000349:                                                                                                  #  SKEEP3 HOLDS PRESENT ADDRESS (00000 TO 01777 IN COMMON FIXED BANKS)
053466,000350:                                                                                                  #                               (04000 TO 07777 IN FXFX BANKS)
053467,000351:                                                                                                  #  SKEEP3 HOLDS BUGGER WORD DURING SHOWSUM DISPLAY
053468,000352:                                                                                                  #  SKEEP4 HOLDS BANK NUMBER AND SUPER BANK NUMBER
053469,000353:                                                                                                  #  SKEEP5 COUNTS 2 SUCCESSIVE TC SELF WORDS
053470,000354:                                                                                                  #  SKEEP6 CONTROLS ROPECHK OR SHOWSUM OPTION
053471,000355:                                                                                                  #  SKEEP7 CONTROLS WHEN ROUTINE IS IN COMMON FIXED OR FIXED FIXED BANKS
053472,000356: 
053473,000357: 43,3545           34754        ROPECHK            CA       S-ZERO                                #  *
053474,000358: 43,3546           55376                           TS       SKEEP6                                #  * -0 FOR ROPECHK
053475,000359: 43,3547           34755        STSHOSUM           CA       S+ZERO                                #  * SHOULD BE ROPECHK
053476,000360: 
053477,000361: 43,3550           55374                           TS       SKEEP4                                #  BANK NUMBER
053478,000362: 43,3551           34753                           CA       S+1                                   
053479,000363: 43,3552           55377        COMMFX             TS       SKEEP7                                
053480,000364: 43,3553           34755                           CA       S+ZERO                                
053481,000365: 43,3554           55371                           TS       SKEEP1                                
053482,000366: 43,3555           55373                           TS       SKEEP3                                
053483,000367: 43,3556           34753                           CA       S+1                                   
053484,000368: 43,3557           55375                           TS       SKEEP5                                #  COUNTS DOWN 2 TC SELF WORDS
053485,000369: 43,3560           31374        COMADRS            CA       SKEEP4                                
053486,000370: 43,3561           54001                           TS       L                                     #  TO SET SUPER BANK
053487,000371: 43,3562           74350                           MASK     HI5                                   

Page 1288

053489,000373: 43,3563           61373                           AD       SKEEP3                                
053490,000374: 43,3564           04651                           TC       SUPDACAL                              #  SUPER DATA CALL
053491,000375: 43,3565           03610                           TC       ADSUM                                 
053492,000376: 43,3566           64741                           AD       SBIT11                                #  02000
053493,000377: 43,3567           03621                           TC       ADRSCHK                               
053494,000378: 
053495,000379: 43,3570           40000        FXFX               CS       A                                     
053496,000380: 43,3571           55377                           TS       SKEEP7                                
053497,000381: 43,3572           00006                           EXTEND                                         
053498,000382: 43,3573           13576                           BZF      +3                                    
053499,000383: 43,3574           34740                           CA       SBIT12                                #  04000, STARTING ADDRESS OF BANK 02
053500,000384: 43,3575           03577                           TC       +2                                    
053501,000385: 43,3576           35020                           CA       SBNK03                                #  06000, STARTING ADDRESS OF BANK 03
053502,000386: 43,3577           55373                           TS       SKEEP3                                
053503,000387: 43,3600           34755                           CA       S+ZERO                                
053504,000388: 43,3601           55371                           TS       SKEEP1                                
053505,000389: 43,3602           34753                           CA       S+1                                   
053506,000390: 43,3603           55375                           TS       SKEEP5                                #  COUNTS DOWN 2 TC SELF WORDS
053507,000391: 43,3604           51373        FXADRS             INDEX    SKEEP3                                
053508,000392: 43,3605           30000                           CA       0000                                  
053509,000393: 43,3606           03610                           TC       ADSUM                                 
053510,000394: 43,3607           03621                           TC       ADRSCHK                               
053511,000395: 
053512,000396: 43,3610           55372        ADSUM              TS       SKEEP2                                
053513,000397: 43,3611           61371                           AD       SKEEP1                                
053514,000398: 43,3612           55371                           TS       SKEEP1                                
053515,000399: 43,3613           34755                           CAF      S+ZERO                                
053516,000400: 43,3614           61371                           AD       SKEEP1                                
053517,000401: 43,3615           55371                           TS       SKEEP1                                
053518,000402: 43,3616           41372                           CS       SKEEP2                                
053519,000403: 43,3617           61373                           AD       SKEEP3                                
053520,000404: 43,3620           00002                           TC       Q                                     
053521,000405: 
053522,000406: 43,3621           22000        ADRSCHK            LXCH     A                                     
053523,000407: 43,3622           31373                           CA       SKEEP3                                
053524,000408: 43,3623           75012                           MASK     LOW10                                 #  RELATIVE ADDRESS
053525,000409: 43,3624           64350                           AD       -MAXADRS                              #  SUBTRACT MAX RELATIVE ADDRESS = 1777.
053526,000410: 43,3625           00006                           EXTEND                                         
053527,000411: 43,3626           13715                           BZF      SOPTION                               #  CHECKSUM FINISHED IF LAST ADDRESS.
053528,000412: 43,3627           11375                           CCS      SKEEP5                                #  IS CHECKSUM FINISHED
053529,000413: 43,3630           03633                           TC       +3                                    #  NO
053530,000414: 43,3631           03633                           TC       +2                                    #  NO
053531,000415: 43,3632           03715                           TC       SOPTION                               #  GO TO ROPECHK SHOWSUM OPTION
053532,000416: 43,3633           10001                           CCS      L                                     #  -0 MEANS A TC SELF WORD.
053533,000417: 43,3634           03643                           TC       CONTINU                               
053534,000418: 43,3635           03643                           TC       CONTINU                               
053535,000419: 43,3636           03643                           TC       CONTINU                               
053536,000420: 43,3637           11375                           CCS      SKEEP5                                
053537,000421: 43,3640           03644                           TC       CONTINU    +1                         
053538,000422: 43,3641           37752                           CA       S-1                                   

Page 1289

053540,000424: 43,3642           03644                           TC       CONTINU    +1                         #  AD IN THE BUGGER WORD
053541,000425: 43,3643           34753        CONTINU            CA       S+1                                   #  MAKE SURE TWO CONSECUTIVE TC SELF WORDS
053542,000426: 43,3644           55375                           TS       SKEEP5                                
053543,000427: 43,3645           11376                           CCS      SKEEP6                                #  *
053544,000428: 43,3646           10067                           CCS      NEWJOB                                #  * +1, SHOWSUM
053545,000429: 43,3647           05122                           TC       CHANG1                                #  *
053546,000430: 43,3650           03652                           TC       +2                                    #  *
053547,000431: 43,3651           03357                           TC       CHECKNJ                               #  -0 IN SKEEP6 FOR ROPECHK
053548,000432: 
053549,000433: 43,3652           25373        ADRS+1             INCR     SKEEP3                                
053550,000434: 43,3653           11377                           CCS      SKEEP7                                
053551,000435: 43,3654           03560                           TC       COMADRS                               
053552,000436: 43,3655           03560                           TC       COMADRS                               
053553,000437: 43,3656           03604                           TC       FXADRS                                
053554,000438: 43,3657           03604                           TC       FXADRS                                
053555,000439: 
053556,000440: 43,3660           41374        NXTBNK             CS       SKEEP4                                
053557,000441: 43,3661           63750                           AD       LSTBNKCH                              #  LAST BANK TO BE CHECKED
053558,000442: 43,3662           00006                           EXTEND                                         
053559,000443: 43,3663           13152                           BZF      ENDSUMS                               #  END OF SUMMING OF BANKS.
053560,000444: 43,3664           31374                           CA       SKEEP4                                
053561,000445: 43,3665           64741                           AD       SBIT11                                
053562,000446: 43,3666           55374                           TS       SKEEP4                                #  37 TO 40 INCRMTS SKEEP4 BY END RND CARRY
053563,000447: 43,3667           03673                           TC       CHKSUPR                               
053564,000448: 43,3670           34735        17TO20             CA       SBIT15                                
053565,000449: 43,3671           27374                           ADS      SKEEP4                                #  SET FOR BANK 20
053566,000450: 43,3672           03707                           TC       GONXTBNK                              
053567,000451: 43,3673           74350        CHKSUPR            MASK     HI5                                   
053568,000452: 43,3674           00006                           EXTEND                                         
053569,000453: 43,3675           13705                           BZF      NXTSUPR                               #  INCREMENT SUPER BANK
053570,000454: 43,3676           63265        27TO30             AD       S13BITS                               
053571,000455: 43,3677           00006                           EXTEND                                         
053572,000456: 43,3700           13702                           BZF      +2                                    #  BANK SET FOR 30
053573,000457: 43,3701           03707                           TC       GONXTBNK                              
053574,000458: 43,3702           33263                           CA       SIXTY                                 #  FIRST SUPER BANK
053575,000459: 43,3703           27374                           ADS      SKEEP4                                
053576,000460: 43,3704           03707                           TC       GONXTBNK                              
053577,000461: 43,3705           63264        NXTSUPR            AD       SUPRCON                               #  SET BNK 30 + INCR SUPR BNK AND CANCEL
053578,000462: 43,3706           27374                           ADS      SKEEP4                                #  ERC BIT OF TEH 37 TO 40 ADVANCE.
053579,000463: 43,3707           11377        GONXTBNK           CCS      SKEEP7                                
053580,000464: 43,3710           03552                           TC       COMMFX                                
053581,000465: 43,3711           34753                           CA       S+1                                   
053582,000466: 43,3712           03570                           TC       FXFX                                  
053583,000467: 43,3713           34745                           CA       SBIT7                                 #  HAS TO BE LARGER THAN NO OF FXSW BANKS.
053584,000468: 43,3714           03552                           TC       COMMFX                                
053585,000469: 
053586,000470: 43,3715           31374        SOPTION            CA       SKEEP4                                
053587,000471: 43,3716           74350                           MASK     HI5                                   #  = BANK BITS
053588,000472: 43,3717           04331                           TC       LEFT5                                 
053589,000473: 43,3720           54001                           TS       L                                     #  BANK NUMBER BEFORE SUPER BANK

Page 1290

053591,000475: 43,3721           31374                           CA       SKEEP4                                
053592,000476: 43,3722           74357                           MASK     S8BITS                                #  = SUPER BANK BITS
053593,000477: 43,3723           00006                           EXTEND                                         
053594,000478: 43,3724           13732                           BZF      SOPT                                  #  BEFORE SUPER BANK
053595,000479: 43,3725           54021                           TS       SR                                    #  SUPER BANK NECESSARY
053596,000480: 43,3726           30001                           CA       L                                     
053597,000481: 43,3727           74757                           MASK     SEVEN                                 
053598,000482: 43,3730           60021                           AD       SR                                    
053599,000483: 43,3731           54001                           TS       L                                     #  BANK NUMBER WITH SUPER BANK
053600,000484: 43,3732           31376        SOPT               CA       SKEEP6                                #  *
053601,000485: 43,3733           00006                           EXTEND                                         #  *
053602,000486: 43,3734           13736                           BZF      +2                                    #  * ON -0 CONTINUE WITH ROPE CHECK.
053603,000487: 43,3735           03134                           TC       SDISPLAY                              #  * ON +1 GO TO DISPLAY OF SUM.
053604,000488: 43,3736           11371                           CCS      SKEEP1                                #  FORCE SUM TO ABSOLUTE VALUE.
053605,000489: 43,3737           03741                           TC       +2                                    
053606,000490: 43,3740           03742                           TC       +2                                    
053607,000491: 43,3741           64753                           AD       S+1                                   
053608,000492: 43,3742           55371                           TS       SKEEP1                                
053609,000493: 43,3743           40001        BNKCHK             CS       L                                     #  = - BANK NUMBER
053610,000494: 43,3744           61371                           AD       SKEEP1                                
053611,000495: 43,3745           67752                           AD       S-1                                   
053612,000496: 43,3746           03320                           TC       -1CHK                                 #  CHECK SUM
053613,000497: 43,3747           03660                           TC       NXTBNK                                
053614,000498: 
053615,000499: 43,3750     0067                                  EBANK=   NEWJOB                                
053616,000500: 43,3750           66100        LSTBNKCH           BBCON*   -0                                    #  * CONSTANT, LAST BANK.
053617,000501: 

End of include-file AGC_BLOCK_TWO_SELF_CHECK.agc.  Parent file is MAIN.agc