Notations on the program listing read, in part:
GAP: ASSEMBLE REVISION 56 OF AGC PROGRAM ZERLINA BY ZOROASTER 9:12 OCT. 21,1970Note that the date is the date of the printout, not the date of the program revision.
Source Code
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These source-code files were transcribed from a printout in Don Eyles's personal
collection, scanned by archive.org, and financially sponsored by Linden Sims.
A team of volunteers performed the transcription and proof-reading. The scanned
page images are available at
the Virtual AGC Project website, as well as higher-quality (but much larger)
images at
the Virtual AGC Project's collection in the Internet Archive. Report any problems by creating
"issues" at
the Virtual AGC Project's GitHub Repository. Notations on the program listing read, in part: GAP: ASSEMBLE REVISION 56 OF AGC PROGRAM ZERLINA BY ZOROASTER 9:12 OCT. 21,1970Note that the date is the date of the printout, not the date of the program revision. |
061070,000002: ## Copyright: Public domain.
061071,000003: ## Filename: DAP_INTERFACE_SUBROUTINES.agc
061072,000004: ## Purpose: A log section of Zerlina 56, the final revision of
061073,000005: ## Don Eyles's offline development program for the variable
061074,000006: ## guidance period servicer. It also includes a new P66 with LPD
061075,000007: ## (Landing Point Designator) capability, based on an idea of John
061076,000008: ## Young's. Neither of these advanced features were actually flown,
061077,000009: ## but Zerlina was also the birthplace of other big improvements to
061078,000010: ## Luminary including the terrain model and new (Luminary 1E)
061079,000011: ## analog display programs. Zerlina was branched off of Luminary 145,
061080,000012: ## and revision 56 includes all changes up to and including Luminary
061081,000013: ## 183. It is therefore quite close to the Apollo 14 program,
061082,000014: ## Luminary 178, where not modified with new features.
061083,000015: ## Reference: pp. 1394-1397
061084,000016: ## Assembler: yaYUL
061085,000017: ## Contact: Ron Burkey <info@sandroid.org>.
061086,000018: ## Website: www.ibiblio.org/apollo/index.html
061087,000019: ## Mod history: 2017-07-28 MAS Created from Luminary 210.
061088,000020: ## 2017-08-29 MAS Updated for Zerlina 56.
061089,000021:
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Page 1394 |
061091,000023: 20,2115 BANK 20
061092,000024: 20,2000 SETLOC DAPS3
061093,000025: 20,2000 BANK
061094,000026:
061095,000027: 20,2115 E6,1634 EBANK= CDUXD
061096,000028: 20,2115 COUNT* $$/DAPIF
061097,000029:
061098,000030: # MOD 0 DATE 11/15/66 BY GEORGE W. CHERRY
061099,000031:
061100,000032: # MOD 1 1/23/67 MODIFICATION BY PETER ADLER
061101,000033:
061102,000034: # FUNCTIONAL DESCRIPTION
061103,000035:
061104,000036: # HEREIN ARE A COLLECTION OF SUBROUTINES WHICH ALLOW MISSION CONTROL PROGRAMS TO CONTROL THE MODE
061105,000037: # AND INTERFACE WITH THE DAP.
061106,000038:
061107,000039: # CALLING SEQUENCES
061108,000040:
061109,000041: # IN INTERRUPT OR WITH INTERRUPT INHIBITED
061110,000042: # TC IBNKCALL
061111,000043: # FCADR ROUTINE
061112,000044:
061113,000045: # IN A JOB WITHOUT INTERRUPT INHIBITED
061114,000046: # INHINT
061115,000047: # TC IBNKCALL
061116,000048: # FCADR ROUTINE
061117,000049: # RELINT
061118,000050:
061119,000051: # OUTPUT
061120,000052:
061121,000053: # SEE INDIVIDUAL ROUTINES BELOW
061122,000054:
061123,000055: # DEBRIS
061124,000056:
061125,000057: # A,L, AND SOMETIMES MDUETEMP ODE NOT IN PULSES MODE
061126,000058:
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Page 1395 |
061128,000060: # SUBROUTINE NAMES:
061129,000061: # SETMAXDB, SETMINDB, RESTORDB, PFLITEDB
061130,000062:
061131,000063: # MODIFIED: 30 JANUARY 1968 BY P S WEISSMAN TO CREATE RESTORDB.
061132,000064:
061133,000065: # MODIFIED: 1 MARCH 1968 BY P S WEISSMAN TO SAVE EBANK AND CREATE PFLITEDB
061134,000066:
061135,000067: # FUNCTIONAL DESCRIPTION:
061136,000068: # SETMAXDB - SET DEADBAND TO 5.0 DEGREES
061137,000069: # SETMINDB - SET DEADBAND TO 0.3 DEGREE
061138,000070: # RESTORDB - SET DEADBAND TO .3,1, OR 5 ACCORDING TO BITS 4 AND 5 OF DAPBOOLS
061139,000071: # PFLITEDB - SET DEADBAND TO 1.0 DEGREE AND ZERO THE COMMANDED ATTITUDE CHANGE AND COMMANDED RATE
061140,000072: # ALL ENTRIES SET UP A NOVAC JOB TO DO 1/ACCS SO THAT THE TJETLAW SWITCH CURVES ARE POSITIONED TO
061141,000073: # REFLECT THE NEW DEADBAND. IT SHOULD BE NOTED THAT THE DEADBAND REFERS TO THE ATTITUDE IN THE P-,U-,AND V-AXES.
061142,000074:
061143,000075: # SUBROUTINE CALLED: NOVAC
061144,000076:
061145,000077: # CALLING SEQUENCE: SAME AS ABOVE
061146,000078: # OR TC RESTORDB +1 FROM ALLCOAST
061147,000079: # DEBRIS: A, L, Q, RUPTREG1, (ITEMPS IN NOVAC)
061148,000080:
061149,000081: 20,2115 30111 RESTORDB CAE DAPBOOLS # DETERMINE CREW-SELECTED DEADBAND.
061150,000082: 20,2116 74747 MASK DBSLECT2 # CHECK FOR MAX DB (5 DEG)
061151,000083: 20,2117 00006 EXTEND
061152,000084: 20,2120 12122 BZF +2
061153,000085: 20,2121 12130 TCF SETMAXDB # BIT5 DAPBOOLS IS SET - CREW WANTS 5 DEG
061154,000086: 20,2122 30111 CAE DAPBOOLS
061155,000087: 20,2123 74750 MASK DBSELECT # CHECK FOR 1 DEG DEADBAND SELECTION
061156,000088: 20,2124 00006 EXTEND
061157,000089: 20,2125 12141 BZF SETMINDB
061158,000090:
061159,000091: 20,2126 32153 CAF POWERDB # BIT4 DAPBOOLS IS SET - CREW WANTS 1 DEG
061160,000092: 20,2127 12131 TCF SETMAXDB +1
061161,000093: 20,2130 32152 SETMAXDB CAF WIDEDB # SET 5 DEGREE DEADBAND.
061162,000094: 20,2131 55343 +1 TS DB
061163,000095:
061164,000096: 20,2132 00006 EXTEND # SET UP JOB TO RE-POSITION SWITCH CURVES.
061165,000097: 20,2133 22070 QXCH RUPTREG1
061166,000098: 20,2134 37727 CALLACCS CAF PRIO27
061167,000099: 20,2135 05072 TC NOVAC
061168,000100: 20,2136 E6,1536 EBANK= AOSQ
061169,000101: 20,2136 03555 42106 2CADR 1/ACCJOB
061170,000102:
061171,000103:
061172,000104: 20,2140 00070 TC RUPTREG1 # RETURN TO CALLER.
061173,000105:
061174,000106: 20,2141 32151 SETMINDB CAF NARROWDB # SET 0.3 DEGREE DEADBAND.
061175,000107: 20,2142 12131 TCF SETMAXDB +1
061176,000108:
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Page 1396 |
061178,000110: 20,2143 00006 PFLITEDB EXTEND # THE RETURN FROM CALLACCS IS TO RUPTREG1.
061179,000111: 20,2144 22070 QXCH RUPTREG1
061180,000112: 20,2145 02154 TC ZATTEROR # ZERO THE ERRORS AND COMMANDED RATES.
061181,000113: 20,2146 32153 CAF POWERDB # SET DB TO 1.0 DEG.
061182,000114: 20,2147 55343 TS DB
061183,000115: 20,2150 12134 TCF CALLACCS # SET UP 1/ACCS AND RETURN TO CALLER.
061184,000116: 20,2151 00155 NARROWDB OCTAL 00155 # 0.3 DEGREE SCALED AT 45.
061185,000117: 20,2152 03434 WIDEDB OCTAL 03434 # 5.0 DEGREES SCALED AT 45.
061186,000118: 20,2153 00554 POWERDB DEC .02222 # 1.0 DEGREE SCALED AT 45.
061187,000119:
061188,000120:
061189,000121: 20,2154 35015 ZATTEROR CAF EBANK6
061190,000122: 20,2155 56003 XCH EBANK
061191,000123: 20,2156 54001 TS L # SAVE CALLERS EBANK IN L.
061192,000124: 20,2157 30032 CAE CDUX
061193,000125: 20,2160 55634 TS CDUXD
061194,000126: 20,2161 30033 CAE CDUY
061195,000127: 20,2162 55635 TS CDUYD
061196,000128: 20,2163 30034 CAE CDUZ
061197,000129: 20,2164 55636 TS CDUZD
061198,000130: 20,2165 12171 TCF STOPRATE +3
061199,000131:
061200,000132:
061201,000133: 20,2166 35015 STOPRATE CAF EBANK6
061202,000134: 20,2167 56003 XCH EBANK
061203,000135: 20,2170 54001 TS L # SAVE CALLERS EBANK IN L.
061204,000136: 20,2171 34755 +3 CAF ZERO
061205,000137: 20,2172 55642 TS OMEGAPD
061206,000138: 20,2173 55643 TS OMEGAQD
061207,000139: 20,2174 55644 TS OMEGARD
061208,000140: 20,2175 55637 TS DELCDUX
061209,000141: 20,2176 55640 TS DELCDUY
061210,000142: 20,2177 55641 TS DELCDUZ
061211,000143: 20,2200 55274 TS DELPEROR
061212,000144: 20,2201 55275 TS DELQEROR
061213,000145: 20,2202 55276 TS DELREROR
061214,000146: 20,2203 22003 LXCH EBANK # RESTORE CALLERS EBANK.
061215,000147: 20,2204 00002 TC Q
061216,000148:
061217,000149: # SUBROUTINE NAME: ALLCOAST
061218,000150:
061219,000151: # WILL BE CALLED BY FRESH STARTS AND ENGINE OFF ROUTINES. .
061220,000152:
061221,000153: # CALLING SEQUENCE: (SAME AS ABOVE)
061222,000154:
061223,000155: # EXIT: RETURN TO Q.
061224,000156:
061225,000157: # SUBROUTINES CALLED: STOPRATE, RESTORDB, NOVAC
061226,000158:
061227,000159: # ZERO: (FOR ALL AXES) AOS, ALPHA, AOSTERM, OMEGAD, DELCDU, DELEROR
061228,000160:
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Page 1397 |
061230,000162: # OUTPUT: DRIFTBIT/DAPBOOLS, DB, JOB TO DO 1/ACCS
061231,000163:
061232,000164: # DEBRIS: A, L, Q, RUPTREG1, RUPTREG2, (ITEMPS IN NOVAC)
061233,000165:
061234,000166: 20,2205 00006 ALLCOAST EXTEND # SAVE Q FOR RETURN
061235,000167: 20,2206 22071 QXCH RUPTREG2
061236,000168: 20,2207 02166 TC STOPRATE # CLEAR RATE INTERFACE. RETURN WITH A=0
061237,000169: 20,2210 22003 LXCH EBANK # AND L=EBANK6. SAVE CALLERS EBANK.
061238,000170: 20,2211 55536 TS AOSQ
061239,000171: 20,2212 55537 TS AOSQ +1
061240,000172: 20,2213 55540 TS AOSR
061241,000173: 20,2214 55541 TS AOSR +1
061242,000174: 20,2215 55424 TS ALPHAQ # FOR DOWNLIST.
061243,000175: 20,2216 55425 TS ALPHAR
061244,000176: 20,2217 55544 TS AOSQTERM
061245,000177: 20,2220 55545 TS AOSRTERM
061246,000178: 20,2221 22003 LXCH EBANK # RESTORE EBANK (EBANK6 NO LONGER NEEDED)
061247,000179:
061248,000180: 20,2222 40111 CS DAPBOOLS # SET UP DRIFTBIT
061249,000181: 20,2223 74744 MASK DRIFTBIT
061250,000182: 20,2224 26111 ADS DAPBOOLS
061251,000183: 20,2225 02116 TC RESTORDB +1 # RESTORE DEADBANK TO CREW-SELECTED VALUE.
061252,000184:
061253,000185: 20,2226 00071 TC RUPTREG2 # RETURN.
End of include-file DAP_INTERFACE_SUBROUTINES.agc. Parent file is MAIN.agc