Impressum SERVICER.agc
Interaktion und PortierbarkeitApollo
# Copyright: Public domain. # Filename: SERVICER.agc # Purpose: Part of the source code for Luminary, build 099. It # is part of the source code for the Lunar Module's # (LM) Apollo Guidance Computer (AGC), Apollo 11. # Assembler: yaYUL # Reference: pp. 857-897 # Contact: Ron Burkey <info@sandroid.org>, # Fabrizio Bernardini <fabrizio@spacecraft.it> # Website: http://www.ibiblio.org/apollo. # Mod history: 2009-06-01 FB Transcription Batch 4 Assignment. # 2009-06-05 RSB Fixed a couple of typos, plus a goofy relative # label reference from the original source. # # The contents of the "Luminary099" files, in general, are transcribed # from scanned documents. # # Assemble revision 001 of AGC program Luminary099 by NASA # 2021112-061. July 14, 1969. # # Prepared by # Massachusetts Institute of Technology # 75 Cambridge Parkway # Cambridge, Massachusetts # # under NASA contract NAS 9-4065. # # Refer directly to the online document mentioned above for further # information. Please report any errors to info@sandroid.org.
# Page 857 BANK37 SETLOC SERV1 BANK
EBANK= DVCNTR
# ************* PREREAD *******************
COUNT* $$/SERV
PREREAD CAF SEVEN # 5.7 SPOT TO SKIP LASTBIAS AFTER TC GNUFAZE5 # RESTART. CAF PRIO21 TC NOVAC EBANK= NBDX 2CADR LASTBIAS # DO LAST GYRO COMPENSATION IN FREE FALL
BIBIBIAS TC PIPASR +3# CLEAR + READ PIPS LAST TIME IN FRE5+F133 # DO NOT DESTROY VALUE OF PIPTIME1
CS FLAGWRD7 MASK SUPER011 # SET V37FLAG AND AVEGFLAG (BITS 5 AND 6 ADS FLAGWRD7 # OF FLAGWRD7)
READACCS CS OCT37771 # THIS PIECE OF CODING ATTEMPTS TO AD TIME5 # SYNCHRONIZE READACCS WITH THE DIGITAL CCS A # AUTOPILOT SO THAT A PAXIS RUPT WILL CS ONE # OCCUR APPROXIMATELY 70 MILLISECONDS TCF +2# FOLLOWING THE READACCS RUPT. THE 70 MS CA ONE # OFFSET WAS CHOSEN SO THAT THE PAXIS
+2ADS TIME5 # RUPT WOULD NOT OCCUR SIMULTANEOUSLY # WITH ANY OF THE 8 SUBSEQUENT R10,R11 # INTERRUPTS -- THUS MINIMIZING THE POSS- # IBILITY OF LOSING DOWNRUPTS.
TC PIPASR # READ THE PIPAS.
PIPSDONE CA FIVE TC GNUFAZE5
REDO5.5CAF ONE TS PIPAGE
CA PRIO20 TC FINDVAC EBANK= DVCNTR 2CADR SERVICER # SET UP SERVICER JOB
CA BIT9 EXTEND WOR DSALMOUT # TURN ON TEST CONNECTOR OUTBIT
CA FLAGWRD7 MASK AVEGFBIT EXTEND BZF AVEGOUT # AVEGFLAG DOWN -- SET UP FINAL EXIT
CA FLAGWRD6 MASK MUNFLBIT EXTEND BZF MAKEACCS # MUNFLAG CLEAR -- BYPASS LR AND DISP.
CS TIME1 # SET TBASE2 .05 SECONDS IN THE PAST. AD FIVE AD NEG1/2 AD NEG1/2 XCH TBASE2 # Page 859 CAF DEC17 # 2.21SPOT FOR R10,R11 TS L
COM DXCH -PHASE2
CAF OCT24 # FIRST R10,R11 IN .200 SECONDS TC WAITLIST EBANK= UNIT/R/ 2CADR R10,R11
MAKEACCS CA FOUR TCF GOREADAX # DO PHASE CHANGE AND RECALL READACCS
AVEGOUT EXTEND DCA AVOUTCAD # SET UP FINAL SERVICER EXIT DXCH AVGEXIT
CA FOUR # SET 5.4 SPOT FOR REREADAC AND SERVICER TC GNUTFAZ5 # IF REREADAC IS CALLED, IT WILL EXIT TC TASKOVER # END TASK WITHOUT CALLING READACCS
GNUTFAZ5 TS L # SAVE INPUT IN L CS TIME1 TS TBASE5 # SET TBASE5 TCF +2
GNUFAZE5 TS L # SAVE INPUT IN L CS L # -PHASE IN A, PHASE IN L. DXCH -PHASE5 # SET -PHASE5,PHASE5 TC Q
CAF PRIO31 # INITIALIZE 1/PIPADT IN CASE RESTART HAS TS1/PIPADT # CAUSED LASTBIAS TO BE SKIPPED.
TC BANKCALL # PIPA COMPENSATION CALL CADR1/PIPA
GETABVAL TC INTPRET
VLOAD ABVAL
DELV EXIT CA MPAC TS ABDELV # ABDELV = CM/SEC*2(-14). EXTEND MP KPIP DXCH ABDVCONV # ABDVCONV = M/CS * 2(-5). EXTEND DCA MASS DXCH MASS1 # INITIALIZE MASS1 IN CASE WE SKIP MASSMON
MASSMON CS FLAGWRD8 # ARE WE ON THE SURFACE? MASK SURFFBIT EXTEND BZF MOONSPOT # YES: BYPASS MASS MESS
CA FLGWRD10 # NO: WHICH VEX SHOULD BE USED? MASK APSFLBIT CCS A EXTEND# IF EXTEND IS EXECUTED, APSVEX --> A, DCA APSVEX # OTHERWISE DPSVEX --> A TS Q
EXTEND DCA ABDVCONV EXTEND
OCT10002 DV Q # WHERE APPROPRIATE VEX RESIDES EXTEND MP MASS DAS MASS1
MOONSPOT CA KPIP1 # TP MPAC = ABDELV AT 2(14) CM/SEC TC SHORTMP # MULTIPLY BY KPIP1 TO GET # Page 861 DXCH MPAC # ABDELV AT 2(7) M/CS DAS DVTOTAL # UPDATE DVTOTAL FOR DISPLAY
DECCNTR TS DVCNTR1 TC QUIKFAZ5 CA DVCNTR1 TS DVCNTR INHINT TC IBNKCALL # IF THRUST IS LOW, NO STEERING IS DONE # Page 863 CADR STOPRATE # AND THE DESIRED RATES ARE SET TO ZERO.
USEJETS CS DAPBOOLS MASK USEQRJTS ADS DAPBOOLS
SERVOUT RELINT TC BANKCALL CADR1/ACCS
CA PRIORITY MASK LOW9 TS PUSHLOC
ZL DXCH FIXLOC # FIXLOC AND DVFIND
TC QUIKFAZ5 EXTEND# EXIT TO SELECTED ROUTINE WHETHER THERE DCA AVGEXIT # IS THRUST OR NOT. THE STATE OF STEERSW DXCH Z # WILL CONVEY THIS INFORMATION.
XNBPIPAD ECADR XNBPIP
BANK32 SETLOC SERV2 BANK COUNT* $$/SERV
AVGEND CA PIPTIME +1# FINAL AVERAGE G EXIT TS1/PIPADT # SET UP FREE FALL GYRO COMPENSATION.
TC UPFLAG # SET DRIFT FLAG. ADRES DRIFTFLG
TC BANKCALL CADR PIPFREE
CS BIT9 EXTEND WAND DSALMOUT
TC2PHSCHNG OCT5# GROUP 5 OFF OCT05022# GROUP 2 ON OCT20000
TC INTPRET
SET CLEAR
NOR29FLG # SHUT OFF R29 WHEN SERVICER ENDS.
SWANDISP # SHUT OFF R10 WHEN SERVICER ENDS.
CLEAR CALL# RESET MUNFLAG.
MUNFLAG # Page 864
AVETOMID
CLEAR EXIT
V37FLAG
AVERTRN CA OUTROUTE # RETURN TO DESIRED POINT. TC BANKJUMP
OUTGOAVE = AVERTRN
DVCNTR1 = MASS1
# Page 865 SETLOC SERV3 BANK COUNT* $$/SERV
SERVIDLE EXTEND# DISCONNECT SERVICER FROM ALL GUIDANCE DCA SVEXTADR DXCH AVGEXIT
CAF LRBYBIT # TERMINATE R12 IS RUNNING. TS FLGWRD11
EXTEND DCA NEG0 DXCH -PHASE1
CA FLAGWRD6 # DO NOT TURN OFF PHASE 2 IF MUNFLAG SET. MASK MUNFLBIT CCS A TCF +4
EXTEND DCA NEG0 DXCH -PHASE2
+4EXTEND DCA NEG0 DXCH -PHASE3
EXTEND DCA NEG0 DXCH -PHASE6
CAF OCT33 # 4.33SPOT FOR GOP00FIX TS L
COM DXCH -PHASE4
TCF WHIMPER # PERFORM A SOFTWARE RESTART AND PROCEED # TO GOTOPOOH WHILE SERVICER CONTINUES TO # RUN, ALBEIT IN A GROUND STATE WHERE # ONLY STATE-VECTOR DEPENDENT FUNCTIONS # ARE MAINTAINED.
EBANK= DVCNTR # Page 866
SVEXTADR 2CADR SERVEXIT
BANK32 SETLOC SERV BANK COUNT* $$/SERV
SERVEXIT TC PHASCHNG OCT00035
+2TCF ENDOFJOB
BANK23 SETLOC NORMLIZ BANK
COUNT* $$/SERV
# Page 867
NORMLIZE TC INTPRET
VLOAD BOFF
RN1
MUNFLAG
NORMLIZ1
VSL6 MXV
REFSMMAT
STCALL R
MUNGRAV
VLOAD VSL1
VN1
MXV
REFSMMAT STOVL V
V(CSM)
VXV UNIT
R(CSM) STORE UHYP
ASCSPOT EXIT EXTEND# MAKE SURE GROUP 2 IS OFF DCA NEG0 DXCH -PHASE2
TC POSTJUMP CADR NORMLIZ2
BANK33 SETLOC SERVICES BANK COUNT* $$/SERV
NORMLIZ1 CALL
CALCGRAV EXIT
NORMLIZ2 CA EIGHTEEN TC COPYCYC +1# DO NOT COPY MASS IN NORMLIZE TC ENDOFJOB
COPYCYC CA OCT24 # DEC 20
+1INHINT
+2MASK NEG1 # REDUCE BY 1 IF ODD TS ITEMP1 EXTEND INDEX ITEMP1 DCA RN1 INDEX ITEMP1 # Page 868 DXCH RN CCS ITEMP1 TCF COPYCYC +2 TC Q # RETURN UNDER INHINT
EIGHTEEN DEC18
# Page 869 # ************* PIPA READER ***************** # MOD NO. 00 BY D. LICKLY, DEC. 9 1966 # # FUNCTIONAL DESCRIPTION # SUBROUTINE TO READ PIPA COUNTERS, TRYING TO BE VERY CAREFUL SO THAT WILL BE RESTARTABLE. # PIPA READINGS ARE STORED IN THE VECTOR DELV. THE HIGH ORDER PART OF EACH COMPONENT CONTAINS THE PIPA READING, # RESTARTS BEGIN AT REREADAC. # # AT THE END OF THE PIPA READER THE CDUS ARE READ AND STORED AS A # VECTOR IN CDUTEMP. THE HIGH ORDER PART OF EACH COMPONENT CONTAINS # THE CDU READING IN 25 COMP IN THE ORDER CDUX,Y,Z. THE THRUST # VECTOR ESTIMATOR IN FINDCDUD REQUIRES THE CDUS BE READ AT PIPTIME. # # CALLING SEQUENCE AND EXIT # CALL VIA TC, ISWCALL, ETC. # EXIT IS VIA Q. # # INPUT # INPUT IS THROUGH THE COUNTERS PIPAX, PIPAY, PIPAZ, AND TIME2. # # OUTPUT # HIGH ORDER COMPONENTS OF THE VECTOR DELV CONTAIN THE PIPA READINGS. # PIPTIME CONTAINS TIME OF PIPA READING. # # DEBRIS (ERASABLE LOCATIONS DESTROYED BY PROGRAM) # TEMX, TEMY, TEMZ, PIPAGE
BANK37 SETLOC SERV1 BANK
COUNT* $$/SERV
PIPASR EXTEND # Page 870 DCA TIME2 DXCH PIPTIME1 # CURRENT TIME POSITIVE VALUE
+3CS ZERO # INITIALIZE THESE AT NEG. ZERO. TS TEMX TS TEMY TS TEMZ
CA ZERO TS DELVZ TS DELVZ +1 TS DELVY TS DELVY +1 TS DELVX +1 TS PIPAGE # SHOW PIPA READING IN PROGRESS
REPIP1 EXTEND
DCS PIPAX # X AND Y PIPS READ DXCH TEMX DXCH PIPAX # PIPAS SET TO NEG ZERO AS READ. TS DELVX LXCH DELVY
REPIP3 CS PIPAZ # REPEAT PROCESS FOR Z PIP XCH TEMZ XCH PIPAZ
DODELVZ TS DELVZ
REPIP4 EXTEND# COMPUTE GUIDANCE PERIOD DCA PIPTIME1 DXCH PGUIDE EXTEND
DCS PIPTIME DAS PGUIDE
CA CDUX # READ CDUS INTO HIGH ORDER CDUTEMPS TS CDUTEMPX CA CDUY TS CDUTEMPY CA CDUZ TS CDUTEMPZ CA DELVX TS PIPATMPX CA DELVY TS PIPATMPY CA DELVZ TS PIPATMPZ
TC Q
# Page 871
REREADAC CCS PIPAGE TCF READACCS # PIP READING NOT STARTED. GO TO BEGINNING
CAF DONEADR # SET UP RETURN FROM PIPASR TS Q
CCS DELVZ TCF REPIP4 # Z DONE, GO DO CDUS TCF +3# Z NOT DONE, CHECK Y. TCF REPIP4 TCF REPIP4
ZL CCS DELVY TCF +3 TCF CHKTEMX # Y NOT DONE, CHECK X. TCF +1 LXCH PIPAZ # Y DONE, ZERO Z PIP.
CCS TEMZ CS TEMZ # TEMZ NOT = -0, CONTAINS -PIPAZ VALUE. TCF DODELVZ TCF -2 LXCH DELVZ # TEMZ = -0, L HAS ZPIP VALUE. TCF REPIP4
CHKTEMX CCS TEMX # HAS THIS CHANGED CS TEMX # YES TCF +3# YES TCF -2# YES TCF REPIP1 # NO TS DELVX
CS TEMY TS DELVY
CS ZERO # ZERO X AND Y PIPS DXCH PIPAX # L STILL ZERO FROM ABOVE
TCF REPIP3
DONEADR GENADR PIPSDONE
# Page 872 BANK33 SETLOC SERVICES BANK
COUNT* $$/SERV
TMPTOSPT CA CDUTEMPY # THIS SUBROUTINE, CALLED BY AN RTB FROM TS CDUSPOTY # INTERPRETIVE, LOADS THE CDUS CORRESPON- CA CDUTEMPZ # DING TO PIPTIME INTO THE CDUSPOT VECTOR. TS CDUSPOTZ CA CDUTEMPX TS CDUSPOTX TC Q
# LRHTASK IS A WAITLIST TASK SET BY READACCS DURING THE DESCENT BRAKING # PHASE WHEN THE ALT TO THE LUNAR SURFACE IS LESS THAN 25,000 FT. THIS # TASK CLEARS THE ALTITUDE MEASUREMENT MADE DISCRETE AND INITIATES THE # LANDING RADAR MEASUREMENT JOB (LRHJOB) TO TAKE A ALTITUDE MEASUREMENT # 50 MS PRIOR TO THE NEXT READACCS TASK.
BANK21 SETLOC R10 BANK
COUNT* $$/SERV
LRHTASK CS FLGWRD11 MASK LRBYBIT EXTEND BZF GRP2OFF # LR BYPASS SET -- BYPASS ALL LR READING.
CA READLBIT MASK FLGWRD11 # IS READLR FLAG SET? EXTEND BZF GRP2OFF # NO. BYPASS LR READ.
CS FLGWRD11 MASK NOLRRBIT # IS LR READ INHIBITED? EXTEND BZF GRP2OFF # YES. BYPASS LR READ.
CA PRIO32 # LR READ OK. SET JOB TO DO IT TC NOVAC # ABOUT 50 MS. PRIOR TO PIPA READ. EBANK= HMEAS 2CADR LRHJOB
GRP2OFF EXTEND DCA NEG0 DXCH -PHASE2 TCF R10,R11A
BANK33 SETLOC SERVICES BANK # Page 873 COUNT* $$/SERV
# HIGATASK IS ENTERED APPROXIMATELY 6 SECS PRIOR TO HIGATE DURING THE # DESCENT PHASE. HIGATASK SETS THE HIGATE FLAG (BIT11) AND THE LR INHIBIT # FLAG (BIT10) IN LRSTAT. THE HIGATJOB IS SET UP TO REPOSITION THE LR # ANTENNA FROM POSITION 1 TO POSITION 2. IF THE REPOSITIONING IS # SUCCESSFUL THE ALT BEAM AND VELOCITY BEAMS ARE TRANSFORMED TO THE NEW # ORIENTATION IN NB COORDINATES AND STORED IN ERASABLE.
HIGATASK INHINT CS PRIO3 # SET HIGATE AND LR INHIBIT FLAGS MASK FLGWRD11 AD PRIO3 TS FLGWRD11 CAF PRIO32 TC FINDVAC # SET LR POSITIONING JOB (POS2) EBANK= HMEAS 2CADR HIGATJOB
TCF CONTSERV # CONTINUE SERVICER
# Page 874 # MUNRETRN IS THE RETURN LOC FROM SPECIAL AVE G ROUTINE (MUNRVG)
MUNRETRN EXIT
CS FLGWRD11 MASK LRBYBIT EXTEND BZF COPYCYC1 # BYPASS LR LOGIC IF BIT15 IS SET.
CA READLBIT # SEE IF ALT < 35000 FT LAST CYCLE MASK FLGWRD11 EXTEND BZF35KCHK # ALT WAS > 35000 FT LAST CYCLE CHK NOW
CAF XORFLBIT # WERE WE BELOW 30000 FT LAST PASS? MASK FLGWRD11 EXTEND BZF XORCHK # NO -- TEST THIS PASS
HITEST CAF PSTHIBIT # CHECK FOR HIGATE MASK FLGWRD11 EXTEND BZF HIGATCHK # NOT AT HIGATE LAST CYCLE -- CHK THIS CYCLE
POS2CHK CAF BIT7 # VERIFY LR IN POS2 EXTEND
RAND CHAN33 EXTEND BZF UPDATCHK # IT IS -- CHECK FOR LR UPDATE CAF BIT13 EXTEND
RAND CHAN12 EXTEND BZF LRPOSALM # LR NOT IN POS2 OR REPOSITIONING -- BAD TCF CONTSERV # LR BEING REPOSITIONED -- CONTINUE SERV
HIGATCHK CA TTF/8# IS TTF > CRITERION? (TTF IS NEGATIVE) AD RPCRTIME EXTEND BZMF POS1CHK # NO
CA EBANK4 # MUST SWITCH EBANKS XCHEBANK TS L # SAVE IN L
EXTEND BZMF HIGATASK # IF UXBXP > QSW, THEN REPOSITION
POS1CHK CAF BIT6 # HIGATE NOT IN SIGHT -- DO POS1 CHK EXTEND
RAND 33 EXTEND BZF UPDATCHK # LR IN POS1 -- CHECK FOR LR UPDATE
LRPOSALM TC ALARM # LR NOT IN PROPER POS-ALARM-BYPASS UPDATE OCT511# AND CONTINUE SERVICER
CONTSERV INHINT CS BITS4-7 MASK FLGWRD11 # CLEAR LR MEASUREMENT MADE DISCRETES. TS FLGWRD11
TC IBNKCALL # SET LR LITES PROPERLY CADR R12LITES
# Page 876
COPYCYC1 TC QUIKFAZ5
R29? CA FLAGWRD3 MASK NR29&RDR CCS A # IS NOR29FLG OR READRFLG SET? TCF R29NODES # YES, SO DON'T DESIGNATE.
CA RADMODES # NO, SO R29 IS CALLED FOR. MASK OCT10002 # IS THE RR NOT ZEROING ITS CDUS, AND CCS A # IS THE RENDEZVOUS RADAR IN AUTO MODE? TCF R29NODES # NO, SO DON'T DESIGNATE.
CA RADMODES MASK PRIO22 CCS A # IS RR REPOSITIONING OR REMODING? TCF NOR29NOW # YES: COME BACK IN 2 SECONDS & TRY AGAIN.
TCF R29
R29NODES INHINT# R29 NOT ALLOWED THIS CYCLE. CS DESIGBIT # SHOW THAT DESIGNATION IS OFF. MASK RADMODES TS RADMODES
NOR29NOW TC INTPRET # INTPRET DOES A RELINT.
VLOAD ABVAL # MPAC = ABVAL( NEW SM. POSITION VECTOR )
R1S PUSH DSU # (2)
/LAND/ STORE HCALC # NEW HCALC*2(24)M. STORE HCALC1
DMPR RTB
ALTCONV
SGNAGREE STOVL ALTBITS # ALTITUDE FOR R10 IN BIT UNITS.
UNIT/R/
VXV UNIT
UHYP STOVL UHZP # DOWNRANGE HALF-UNIT VECTOR FOR R10.
R1S
VXM VSR4
REFSMMAT STOVL RN1 # TEMP. REF. POSITION VECTOR*2(29)M.
V1S
VXM VSL1
REFSMMAT STOVL VN1 # TEMP. REF. VELOCITY VECTOR 2(7) M/CS.
UNIT/R/
VXV ABVAL # Page 877
V1S
SL1 DSQ
DDV
DMPR RTB
ARCONV1
SGNAGREE
COPYCYC2 EXIT# LEAVE ALTITUDE RATE COMPENSATION IN MPAC INHINT CA UNIT/R/ # UPDATE RUNIT FOR R10. TS RUNIT CA UNIT/R/ +2 TS RUNIT +1 CA UNIT/R/ +4 TS RUNIT +2 CA MPAC # LOAD NEW DALTRATE FOR R10. TS DALTRATE
EXTEND DCA R1S DXCH R EXTEND DCA R1S +2 DXCH R +2 EXTEND DCA R1S +4 DXCH R +4 EXTEND DCA V1S DXCH V EXTEND DCA V1S +2 DXCH V +2 EXTEND DCA V1S +4 DXCH V +4
TCF COPYCYCL # COMPLETE THE COPYCYCL.
# Page 878 # ALTCHK COMPARES CURRENT ALTITUDE (IN HCALC) WITH A SPECIFIED ALTITUDE FROM A TABLE BEGINNING AT ALTCRIT. # ITS CALLING SEQUENCE IS AS FOLLOWS:- # # L CAF N # L+1 TC BANKCALL # L+2 CADR ALTCHK # L+3 RETURN HERE IF HCALC STILL > SPECIFIED CRITERION. C(L) = +0. # L+4 RETURN HERE IF HCALC < OR = SPECIFIED CRITERION. C(A) = C(L) = +0 # # ALTCHK MUST BE BANKCALLED EVEN FROM ITS OWN BANK. N IS THE LOCATION, RELATIVE TO THE TAG ALTCRIT, # OF THE BEGINNING OF THE DP CONSTANT TO BE USED AS A CRITERION.
ALTCHK EXTEND INDEX A DCA ALTCRIT DXCH MPAC +1 EXTEND
DCS HCALC DAS MPAC +1 TC BRANCH +4 CAF ZERO # BETTER THAN A NOOP, PERHAPS INCR BUF2 TCF SWRETURN
ALTCRIT = 25KFT
25KFT 2DEC7620 B-24# (0)
50KFT 2DEC15240 B-24# (2)
50FT 2DEC15.24 B-24# (4)
30KFT 2DEC9144 B-24# (6)
2KFT/SEC DEC6.096 B-7# 2000 FT/SEC AT 2(7) M/CS
# (A remark was likely to be needed here to explain XORCHK) 4/Jun/09,FB
XORCHK CAF SIX # ARE WE BELOW 30000 FT? TC BANKCALL CADR ALTCHK TCF HITEST # CONTINUE LR UPDATE TC UPFLAG # YES: INHIBIT X-AXIS OVERRIDE ADRES XOVINFLG TC UPFLAG ADRES XORFLG TCF HITEST # CONTINUE LR UPDATE
35KCHK CAF TWO # ARE WE BELOW 35000 FT?
# Page 879 TC BANKCALL CADR ALTCHK TCF CONTSERV TC UPFLAG ADRES READLR # SET READLR FLAG TO ENABLE LR READING. TCF CONTSERV
CALCGRAV UNIT PUSH# SAVE UNIT/R/ IN PUSHLIST (18) STORE UNIT/R/
LXC,1SLOAD# RTX2 = 0 IF EARTH ORBIT, =2 IF LUNAR.
RTX2
RTX2
DCOMP BMN
CALCGRV1
VLOAD DOT # (12)
UNITZ
UNIT/R/
SL1 PUSH# (14)
DSQ BDSU
DP1/20
PDDL DDV
RESQ 34D # (RN)SQ STORE32D # TEMP FOR (RE/RN)SQ
DMP DMP 20J VXSC PDDL
UNIT/R/
DMP DMP 2J 32D VXSC VSL1
UNITZ
VAD STADR STORE UNITGOBL
VAD PUSH# MPAC = UNIT GRAVITY VECTOR. (18)
CALCGRV1 DLOAD NORM # PERFORM A NORMALIZATION ON RMAGSQ IN 34D # ORDER TO BE ABLE TO SCALE THE MU FOR
X2 # MAXIMUM PRECISION.
BDDV* SLR*
-MUDT,1 0 -21D,2 VXSCSTADR STORE GDT1/2# SCALED AT 2(+7) M/CS
RVQ
CALCRVG VLOAD VXM
DELV
REFSMMAT VXSC VSL1
KPIP1 STORE DELVREF
VSR1 PUSH
VAD PUSH# (DV-OLDGDT)/2 TO PD SCALED AT 2(+7) M/CS. # Page 881
GDT/2
VAD PDDL VN
PGUIDE
SL VXSC 6D
VAD STQ
RN 31D
STCALL RN1 # TEMP STORAGE OF RN SCALED 2(+29) M
CALCGRAV
VAD VAD
VAD VN
STCALL VN1 # TEMP STORAGE OF VN SCALED 2(+7) M/CS 31D
DP1/202DEC0.05
SHIFT11 2DEC1 B-11
# Page 882 #***************************************************************************** # MUNRVG IS A SPECIAL AVERAGE G INTEGRATION ROUTINE USED BY THRUSTING # PROGRAMS WHICH FUNCTION IN THE VICINITY OF AN ASSUMED SPHERICAL MOON. # THE INPUT AND OUTPUT QUANTITIES ARE REFERENCED TO THE STABLE MEMBER # COORDINATE SYSTEM.
RVBOTH VLOAD PUSH
G(CSM)
VAD PDDL
V(CSM)
PGUIDE
DDV VXSC
SHIFT11
VAD
R(CSM)
STCALL R1S
MUNGRAV
VAD VAD
V(CSM) STADR STORE V1S EXIT TC QUIKFAZ5 TC INTPRET
VLOAD
GDT1/2 STOVL G(CSM)
R1S STOVL R(CSM)
V1S STORE V(CSM) EXIT TC QUIKFAZ5 TC INTPRET
MUNRVG VLOAD VXSC
DELV
KPIP2 PUSH VAD # 1ST PUSH: DELV IN UNITS OF 2(8) M/CS
GDT/2 PUSH VAD # 2ND PUSH: (DELV + GDT)/2, UNITS OF 2(7)
V # (12)
PDDL DDV
PGUIDE
SHIFT11 VXSC
VAD
R
STCALL R1S # STORE R SCALED AT 2(+24) M
MUNGRAV # Page 883
VAD VAD
VAD
V STORE V1S # STORE V SCALED AT 2(+7) M/CS.
ABVAL STOVL ABVEL # STORE SPEED FOR LR AND DISPLAYS.
UNIT/R/
DOT SL1
V1S STOVL HDOTDISP # HDOT = V. UNIT(R)*2(7) M/CS.
R1S
VXV VSL2
WM STODL DELVS # LUNAR ROTATION CORRECTION TERM*2(5) M/CS. 36D
DSU
/LAND/
STCALL HCALC # FOR NOW, DISPLAY WHETHER POS OR NEG
MUNRETRN
MUNGRAV UNIT # AT 36D HAVE ABVAL(R), AT 34D R.R STODL UNIT/R/ 34D
SL BDDV 6D
-MUDTMUN
DMP VXSC
SHIFT11
UNIT/R/ STORE GDT1/2# 1/2GDT SCALED AT 2(7) M/CS.
RVQ
1.95SECS DEC195 7.52DEC .02286 B-6# 7.5 FT/SEC AT 2(6) M/CS
2SEC(18) 2DEC200 B-18
2SEC(28) 2OCT0000000310# 2SEC AT 2(28)
4SEC(28) 2DEC400 B-28
BITS4-7OCT110
# Page 884
UPDATCHK CAF NOLRRBIT # SEE IF LR UPDATE INHIBITED. MASK FLGWRD11 CCS A TCF CONTSERV # IT IS -- NO LR UPDATE CAF RNGEDBIT # NO INHIBIT -- SEE ALT MEAS. THIS CYCLE. MASK FLGWRD11 EXTEND BZF VMEASCHK # NO ALT MEAS THIS CYCLE -- CHECK FOR VEL
POSUPDAT CA FIXLOC # SET PUSHLIST TO ZERO TS PUSHLOC
TC INTPRET
VLOAD VXM
HBEAMNB
XNBPIP # HBEAM SM AT 2(2)
PDVL VSL2 # STORE HBEAM IN PD 0-5
V1S # SCALE V AT 2(5) M/CS
VAD DOT
DELVS # V RELATIVE TO SURFACE AT 2(5) M/CS 0D # V ALONG HBEAM AT 2(7) M/CS.
DMP EXIT
RADSKAL # SCALE TO RADAR COUNTS X 5
CS FLGWRD12 # TEST LR ALTITUDE SCALE FACTOR MASK ALTSCBIT EXTEND BZF +3# BRANCH IF HIGH SCALE
CA SKALSKAL # RESCALE IF LOW SCALE TC SHORTMP
+3TC INTPRET
DAD SL # CORRECT HMEAS FOR DOPPLER EFFECT
HMEAS 7D
DMP VXSC# SLANT RANGE AT 2(21), PUSH UP FOR HBEAM
HSCAL # SLANT RANGE VECTOR AT 2(23) M
DOT DSU
UNIT/R/ # ALTITUDE AT 2(24) M
HCALC # DELTA H AT 2(24) M STORE DELTAH EXIT
CA FLGWRD11 MASK PSTHIBIT EXTEND# DO NOT PERFORM DATA REASONABLENESS TEST BZF NOREASON # UNTIL AFTER HIGATE # Page 885 TC INTPRET
ABS DSU
DELQFIX # ABS(DELTAH) - DQFIX 50 FT NOM
SL3 DSU # SCALE TO 2(21)
HCALC # ABS(DELTAH) - (50 + HCALC/8) AT 2(21) EXIT
INCR LRLCTR TC BRANCH TCF HFAIL # DELTA H TOO LARGE TCF HFAIL # DELTA H TOO LARGE TC DOWNFLAG # TURN OFF ALT FAIL LAMP ADRES HFLSHFLG
NOREASON CS FLGWRD11 MASK LRINHBIT CCS A TCF VMEASCHK # UPDATE INHIBITED -- TEST VELOCITY ANYWAY
TC INTPRET # DO POSITION UPDATE DLOAD SR4
HCALC # RESCALE H TO 2(28)M EXIT EXTEND DCA DELTAH # STORE DELTAH IN MPAC AND DXCH MPAC # BRING HCALC INTO A,L TC ALSIGNAG EXTEND# IF HIGH PART OF HCALC IS NON-ZERO, THEN BZF +2# HCALC > HMAX, TCF VMEASCHK # SO UPDATE IS BYPASSED TS MPAC +2# FOR LATER SHORTMP
CS L # -H AT 2(14) M AD LRHMAX # HMAX - H EXTEND BZMF VMEASCHK # IF H >HMAX, BYPASS UPDATE EXTEND MP LRWH # WH(HMAX - H) EXTEND
DV LRHMAX # WH(1 - H/HMAX) TS MPTEMP TC SHORTMP2 # DELTAH (WH)(1 - H/HMAX) IN MPAC TC INTPRET # MODE IS DP FROM ABOVE
SL1 VXSC VAD
UNIT/R/ # DELTAR = DH(WH)(1 - H/HMAX) UNIT/R/
R1S
STCALL GNUR
MUNGRAV EXIT # Page 886 TC QUIKFAZ5
CA ZERO
RUPDATED TC GNURVST
VMEASCHK TC QUIKFAZ5 # RESTART AT NEXT LOCATION CS FLGWRD11 MASK VELDABIT # IS V READING AVAILABLE? CCS A TCF VALTCHK # NO: SEE IF V READING TO BE TAKEN
VELUPDAT CS VSELECT # PROCESS VELOCITY DATA TS L ADS L # -2 VSELECT IN L AD L AD L # -6 VSELECT IN A INDEX FIXLOC DXCH X1 # X1 = -6 VSELECT, X2 = -2 VSELECT
CA EBANK4 TSEBANK EBANK= LRXCDU
CA LRYCDU # STORE LRCDUS IN CDUSPOTS TS CDUSPOT CA LRZCDU TS CDUSPOT +2 CA LRXCDU TS CDUSPOT +4
TC BANKCALL CADR QUICTRIG # GET SINES AND COSINES FOR NBSM
CA FIXLOC TS PUSHLOC # SET PD TO ZERO
TC INTPRET
VLOAD* CALL
VZBEAMNB,1# CONVERT VBEAM FROM NB TO SM
*NBSM*
PDDL SL # STORE IN PD 0-5
VMEAS # LOAD VELOCITY MEASUREMENT 12D
DMP* PUSH# SCALE TO M/CS AT 2(6)
VZSCAL,2# AND STORE IN PD 6-7 EXIT CS ONE TS MODE # CHANGE STORE MODE TO VECTOR
CA PIPTEM # STORE DELV IN MPAC # Page 887
ZL DXCH MPAC
CA PIPTEM +1
ZL DXCH MPAC +3
CA PIPTEM +2
ZL DXCH MPAC +5
CA EBANK7 TSEBANK# RESTORE EBANK 7 EBANK= DVCNTR TC INTPRET VXSC PDDL
KPIP1 # SCALE DELV TO 2(7) M/CS AND PUSH
LRVTIME # TIME OF DELV AT 2(28) CS
DSU DDV
PIPTIME # TU - T(N-1) 2SEC(28) VXSC VSL1 # G(N-1)(TU - T(N-1))
GDT/2# SCALED AT 2(7) M/CS
VAD VAD # PUSH UP FOR DELV
V # VU = V(N-1) + DELVU + G(N-1) DTU
VSL2 VAD # SCALE TO 2(5) M/CS AND SUBTRACT
DELVS # MOON ROTATION. PUSH ABVAL # STORE IN PD
SR4 DAD # ABS(VM)/8 + 7.5 AT 2(6) 7.5 STOVL20D # STORE IN 20D AND PICK UP VM
DOT BDSU # V(EST) AT 2(6) 0# DELTAV = VMEAS - V(EST) PUSH ABS
DSU EXIT# ABS(DV) - (7.5 + ABS(VM)/8)) 20D
INCR LRMCTR TC BRANCH TCF VFAIL # DELTA V TOO LARGE. ALARM TCF VFAIL # DELTA V TOO LARGE. ALARM
TC DOWNFLAG # TURN OFF VEL FAIL LAMP ADRES VFLSHFLG
CA ABVEL # STORE E7 ERASABLES NEEDED IN TEMPS TS ABVEL* CA VSELECT TS VSELECT* CA EBANK5 TSEBANK# CHANGE EBANKS
EBANK= LRVF CS LRVF AD ABVEL* # IF V < VF, USE WVF EXTEND BZMF USEVF
CS ABVEL* AD LRVMAX # VMAX - V EXTEND BZMF WSTOR -1# IF V > VMAX, W = 0
EXTEND INDEX VSELECT* MP LRWVZ # WV(VMAX - V)
EXTEND
DV LRVMAX # WV( 1 - V/VMAX ) TCF WSTOR
USEVF INDEX VSELECT* CA LRWVFZ # USE APPROPRIATE CONSTANT WEIGHT TCF WSTOR
-1CA ZERO
WSTOR TS MPAC CS BIT7 # (=64D) AD MODREG EXTEND # Page 889 BZMF +3# IF IN P65,P66,P67, USE ANOTHER CONSTANT
CA LRWVFF TS MPAC
+3CA EBANK7 TSEBANK# CHANGE EBANKS
EBANK= ABVEL TC INTPRET
DMP VXSC# W(DELTA V)(VBEAMSM) UP 6-7, 0-5
VAD
V1S # ADD WEIGHTED DELTA V TO VELOCITY STORE GNUV EXIT
TC QUIKFAZ5 # DO NOT RE-UPDATE
CA SIX
VUPDATED TC GNURVST # STORE NEW VELOCITY VECTOR
ENDVDAT = VALTCHK
VALTCHK TC QUIKFAZ5 # DO NOT REPEAT ABOVE
CAF READVBIT # TEST READVEL TO SEE IF VELOCITY READING MASK FLGWRD11 # IS DESIRED. CCS A TCF READV # YES -- READ VELOCITY CS ABVEL # NO -- SEE IF VELOCITY < 2000 FT/SEC AD2KFT/SEC EXTEND BZMF CONTSERV # V > 2000 FT/SEC DO NOT READ VEL
TC UPFLAG # V < 2000 FT/SEC SET READVEL AND READ. ADRES READVEL
READV CAF PRIO32 # SET UP JOB TO READ VELOCITY BEAMS. TC NOVAC EBANK= HMEAS 2CADR LRVJOB
TCF CONTSERV # CONTINUE WITH SERVICER
GNURVST TS BUF # STORE GNUR (=GNUV) IN R1S OR V1S EXTEND# A = 0 FOR R, A = 6 FOR V DCA GNUR INDEX BUF DXCH R1S EXTEND # Page 890 DCA GNUR +2 INDEX BUF DXCH R1S +2 EXTEND DCA GNUR +4 INDEX BUF DXCH R1S +4 TC Q
QUIKFAZ5 CA EBANK3 XCHEBANK# SET EBANK 3 DXCH L # Q TO A, A TO L EBANK= PHSNAME5 TS PHSNAME5 LXCHEBANK EBANK= DVCNTR TC A
HFAIL CS LRRCTR EXTEND BZF NORLITE # IF R = 0, DO NOT TURN ON TRK FAIL AD LRLCTR MASK NEG3 EXTEND# IF L-R LT 4, DO NOT TURN ON TRK FAIL BZF +2 TCF NORLITE
TC UPFLAG # AND SET BIT TO TURN ON TRACKER FAIL LITE ADRES HFLSHFLG
NORLITE CA LRLCTR TS LRRCTR # SET R = L
TCF VMEASCHK
VFAIL CS LRSCTR # DELTA Q LARGE EXTEND# IF S = 0, DO NOT TURN ON TRACKER FAIL BZF NOLITE AD LRMCTR # M-S MASK NEG3 # TEST FOR M-S > 3 EXTEND# IF M-S > 3, THEN TWO OR MORE OF THE BZF +2# LAST FOUR V READINGS WERE BAD, TCF NOLITE # SO TURN ON VELOCITY FAIL LIGHT
TC UPFLAG # AND SET BIT TO TURN ON TRACKER FAIL LITE ADRES VFLSHFLG
# Page 891
NOLITE CA LRMCTR # SET S = M TS LRSCTR
CCS VSELECT # TEST FOR Z COMPONENT TCF ENDVDAT # NOT Z, DO NOT SET VX INHIBIT
TC UPFLAG # Z COMPONENT - SET FLAG TO SKIP X ADRES VXINH # COMPONENT, AS ERROR MAY BE DUE TO CROSS TCF ENDVDAT # LOBE LOCK UP NOT DETECTED ON X AXIS.
# Page 892 # ******************************************************************************** # LRVJOB IS SET WHEN THE LEM IS BELOW 15000 FT DURING THE LANDING PHASE # THIS JOB INITIALIZES THE LANDING RADAR READ ROUTINE FOR 5 VELOCITY # SAMPLES AND GOES TO SLEEP WHILE THE SAMPLING IS DONE -- ABOUT 500 MS. # WITH A GOODEND RETURN THE DATA IS STORED IN VMEAS AND BIT7 OF LRSTAT # IS SET. THE GIMBAL ANGLES ARE READ ABOUT MIDWAY IN THE SAMPLINGS.
170MS EQUALS ND1
LRVJOB CA170MS # SET TASK TO READ CDUS + PIPAS TC WAITLIST EBANK= LRVTIME 2CADR RDGIMS
CCS VSELECT # SEQUENCE LR VEL BEAM SELECTOR TCF +2 CAF TWO # IF ZERO, RESET TO TWO DOUBLE# 2XVSELECT USED FOR VBEAM INDEX IN LRVEL TC BANKCALL # GO INITIALIZE LR VEL READ ROUTINE CADR LRVEL TC BANKCALL # PUT LRVJOB TO SLEEP ABOUT 500 MS CADR RADSTALL TCF VBAD CCS STILBADV # IS DATA GOOD JUST PRESENT? TCF VSTILBAD # JUST GOOD -- MUST WAIT 4 SECONDS.
INHINT EXTEND# GOOD RETURN -- STOW AWAY VMEAS DCA SAMPLSUM DXCH VMEAS CA EBANK4 # FOR DOWNLINK TSEBANK EBANK= LRVTIME
EXTEND DCA LRVTIME DXCH LRVTIMDL EXTEND DCA LRXCDU DXCH LRXCDUDL CA LRZCDU TS LRZCDUDL CA EBANK7 TSEBANK EBANK= VSELECT
CS FLGWRD11 # SET BIT TO INDICATE VELOCITY MASK VELDABIT # MEASUREMENT MADE # Page 893 ADS FLGWRD11
ENDLRV CCS VSELECT # UPDATE VSELECT TCF +2 CA TWO TS VSELECT TCF ENDOFJOB
VBAD CAF TWO # SET STILBAD TO WAIT 4 SECONDS
VSTILBAD TS STILBADV TCF ENDLRV
# LRHJOB IS SET BY LRHTASK WHEN LEM IS BELOW 25000 FT. THIS JOB # INITIALIZES THE LR READ ROUTINE FOR AN ALT MEASUREMENT AND GOES TO # SLEEP WHILE THE SAMPLING IS DONE -- ABOUT 95 MS. WITH A GOODEND RETURN # THE ALT DATA IS STORED IN HMEAS AND BIT7 OF LRSTAT IS SET.
BANK34 SETLOC R12STUFF BANK
COUNT* $$/SERV
LRHJOB TC BANKCALL # INITIATE LR ALT MEASUREMENT CADR LRALT TC BANKCALL # LRHJOB TO SLEEP ABOUT 95MS CADR RADSTALL TCF HBAD CCS STILBADH # IS DATA GOOD JUST PRESENT? TCF HSTILBAD # JUST GOOD -- MUST WAIT 4 SECONDS.
INHINT EXTEND DCA SAMPLSUM # GOOD RETURN -- STORE AWAY LRH DATA DXCH HMEAS # LRH DATA 1.079 FT/BIT EXTEND# FOR DOWNLINK DCA PIPTIME1 DXCH MKTIME
EXTEND DCA CDUTEMPY # CDUY,Z = AIG,AMG DXCH AIG
CA CDUTEMPX # CDUX = AOG TS AOG
CS FLGWRD11 # SET BIT TO INDICATE RANGE MASK RNGEDBIT # MEASUREMENT MADE. ADS FLGWRD11
ENDLRH TC ENDOFJOB # TERMATE LRHJOB
# Page 894
HBAD CA FLAGWRD5 MASK RNGSCBIT # IS BAD RETURN DUE TO SCALE CHANGE? EXTEND BZF HSTILBAD -1# NO RESET HSTILBAD TC DOWNFLAG # YES RESET SCALE CHANGE BIT AND IGNORE ADRES RNGSCFLG TC ENDOFJOB
CAF TWO # SET STILBAD TO WAIT 4 SECONDS
HSTILBAD TS STILBADH TC ENDOFJOB
BANK34 SETLOC SERV4 BANK
COUNT* $$/SERV
# RDGIMS IS A TASK SET UP BY LRVJOB TO PICK UP THE IMU CDUS AND TIME # AT ABOUT THE MIDPOINT OF THE LR VEL READ ROUTINE WHEN 5 VEL SAMPLES # ARE SPECIFIED.
EBANK= LRVTIME
RDGIMS EXTEND DCA TIME2 # PICK UP TIME2, TIME1 DXCH LRVTIME # AND SAVE IN LRVTIME
EXTEND DCA CDUX # PICK UP CDUX AND CDUY DXCH LRXCDU # AND SAVE IN LRXCDU AND LRYCDU
CA CDUZ TS LRZCDU # SAVE CDUZ IN LRZCDU
CA PIPAX TS PIPTEM # SAVE PIPAX IN PIPTEM
EXTEND DCA PIPAY # PICK UP PIPAY AND PIPAZ DXCH PIPTEM +1# AND SAVE IN PIPTEM +1 AND PIPTEM +2 TC TASKOVER
BANK33 SETLOC SERVICES BANK
COUNT* $$/SERV
EBANK= DVCNTR # Page 895 # HIGATJOB IS SET APPROXIMATELY 6 SECONDS PRIOR TO HIGH GATE DURING # THE DESCENT BURN PHASE OF LUNAR LANDING. THIS JOB INITIATES THE # LANDING RADAR REPOSITIONING ROUTINE AND GOES TO SLEEP UNTIL THE # LR ANTENNA MOVES FROM POSITION 1 TO POSITION 2. IF THE LR ANTENNA # ACHIEVES POSITION 2 WITHIN 22 SECONDS THE ALTITUDE AND VELOCITY # BEAM VECTORS ARE RECOMPUTED TO REFLECT THE NEW ORIENTATION WITH # RESPECT TO THE NB. BIT10 OF LRSTAT IS CLEARED TO ALLOW LR # MEASUREMENTS AND THE JOB TERMINATES.
HIGATJOB TC BANKCALL # START LRPOS2 JOB CADR LRPOS2 TC BANKCALL # PUT HIGATJOB TO SLEEP UNTIL JOB IS DONE CADR RADSTALL TCF POSALARM # BAD END ALARM
POSGOOD CA PRIO23 # REDUCE PRIORITY FOR INTERPRETIVE COMPS. TC PRIOCHNG
TC SETPOS2 # LR IN POS2 -- SET UP TRANSFORMATIONS
TC DOWNFLAG ADRES NOLRREAD # RESET NOLRREAD FLAG TO ENABLE LR READING TC ENDOFJOB
POSALARM CA OCT523 TC BANKCALL CADR PRIOLARM # FLASH ALARM CODE TCF GOTOPOOH # TERMINATE TCF +3# PROCEED -- TRY AGAIN TCF ENDOFJOB # V 32 E TERMINATE R12 TC ENDOFJOB
+3CA BIT7 # SEE IF IN POS2 YET EXTEND
RAND CHAN33 EXTEND BZF POSGOOD # POS2 ACHIEVED SET UP ANTENNA BEAMS TCF POSALARM # STILL DIDN'T MAKE IT REALARM
OCT523 OCT00523
SETPOS1 TC MAKECADR # MUST BE CALLED BY BANKCALL TS LRADRET1 # SAVE RETURN CADR. SINCE BUP2 CLOBBERED
CA ZERO # INDEX FOR LRALPHA, LRBETA IN POS 1. # Page 896 TS LRLCTR # SET L,M,R, ANS S TO ZERO TS LRMCTR TS LRRCTR TS LRSCTR TS VSELECT # INITIALIZE VSELECT
TC SETPOS # CONTINUE WITH COMPUTATIONS.
CA LRADRET1 TC BANKJUMP # RETURN TO CALLER
SETPOS2 CA TWO # INDEX FOR POS2
SETPOS XCH Q # SAVE INDEX IN Q TS LRADRET # SAVE RETURN
CA EBANK5 TSEBANK EBANK= LRALPHA
EXTEND INDEX Q DCA LRALPHA # LRALPHA IN A, LRBETA IN L TS CDUSPOT +4# ROTATION ABOUT X LXCH CDUSPOT # ROTATION ABOUT Y CA ZERO TS CDUSPOT +2# ZERO ROTATION ABOUT Z.
CA EBANK7 TSEBANK EBANK= LRADRET
TC INTPRET
VLOAD CALL
UNITY # CONVERT UNITY(ANTENNA) TO NB
TRG*SMNB STOVL VYBEAMNB
UNITX # CONVERT UNITX(ANTENNA) TO NB CALL
*SMNB* STORE VXBEAMNB
VXV VSL1
VYBEAMNB STOVL VZBEAMNB # Z = X * Y
HBEAMANT CALL
*SMNB* # CONVERT TO NB STORE HBEAMNB EXIT
# Page 897 TC LRADRET
Messung V0.5 in Prozent
¤ Dauer der Verarbeitung: 0.23 Sekunden
(vorverarbeitet am 2026-10-12)
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