# Copyright: Public domain. # Filename: DAP_INTERFACE_SUBROUTINES.agc # Purpose: Part of the source code for Luminary 1A build 099. # It is part of the source code for the Lunar Module's (LM) # Apollo Guidance Computer (AGC), for Apollo 11. # Assembler: yaYUL # Contact: Ron Burkey <info@sandroid.org>. # Website: www.ibiblio.org/apollo. # Pages: 1406-1409 # Mod history: 2009-05-10 SN (Sergio Navarro). Started adapting # from the Luminary131/ file of the same # name, using Luminary099 page images. # # This source code has been transcribed or otherwise adapted from # digitized images of a hardcopy from the MIT Museum. The digitization # was performed by Paul Fjeld, and arranged for by Deborah Douglas of # the Museum. Many thanks to both. The images (with suitable reduction # in storage size and consequent reduction in image quality as well) are # available online at www.ibiblio.org/apollo. If for some reason you # find that the images are illegible, contact me at info@sandroid.org # about getting access to the (much) higher-quality images which Paul # actually created. # # Notations on the hardcopy document read, in part: # # Assemble revision 001 of AGC program LMY99 by NASA 2021112-061 # 16:27 JULY 14, 1969
# Page 1406 BANK # SETLOC DAPS3 BANK
CA TSRESTREG SUPER BANK PRIORITY FOR DISPLAYS.BANKPRIORITYFOR.
# MOD 0 DATE 11/15/66 BY GEORGE W. CHERRY # MOD 1 1/23/67 MODIFICATION BY PETER ADLER # # FUNCTIONAL DESCRIPTION # HEREIN ARE A COLLECTION OF SUBROUTINES WHICH ALLOW MISSION CONTROL PROGRAMS TO CONTROL THE MODE # AND INTERFACE WITH THE DAP. # # CALLING SEQUENCES # IN INTERRUPT OR WITH INTERRUPT INHIBITED # TC IBNKCALL # FCADR ROUTINE # IN A JOB WITHOUT INTERRUPT INHIBITED # INHINT # TC IBNKCALL # FCADR ROUTINE # RELINT # # OUTPUT # SEE INDIVIDUAL ROUTINES BELOW # # DEBRIS # A, L, AND SOMETIMES MDUETEMP ODE NOT IN PULSES MODE
# Page 1407 # SUBROUTINE NAMES: # SETMAXDB, SETMINDB, RESTORDB, PFLITEDB # MODIFIED: 30 JANUARY 1968 BY P S WEISSMAN TO CREATE RESTORDB. # MODIFIED: 1 MARCH 1968 BY P S WEISSMAN TO SAVE EBANK AND CREATE PFLITEDB # # FUNCTIONAL DESCRIPTION: # SETMAXDB -- SET DEADBAND TO 5.0 DEGREES # SETMINDB -- SET DEADBAND TO 0.3 DEGREE # RESTORDB -- SET DEADBAND TO MAX OR MIN ACCORDING TO SETTINGS OF DBSELECT BIT OF DAPBOOLS # PFLITEDB -- SET DEADBAND TO 1.0 DEGREE AND ZERO THE COMMANDED ATTITUDE CHANGE AND COMMANDED RATE # # ALL ENTRIES SET UP A NOVAC JOB TO DO 1/ACCS SO THAT THE TJETLAW SWITCH CURVES ARE POSITIONED TO # REFLECT THE NEW DEADBAND. IT SHOULD BE NOTED THAT THE DEADBAND REFERS TO THE ATTITUDE IN THE P-, U-, AND V-AXES. # # SUBROUTINE CALLED: NOVAC # # CALLING SEQUENCE: SAME AS ABOVE # OR TC RESTORDB +1 FROM ALLCOAST # # DEBRIS: A, L, Q, RUPTREG1, (ITEMPS IN NOVAC)
SETMAXDB CAF WIDEDB # SET 5 DEGREE DEADBAND.
+1TS DB
EXTEND# SET UP JOB TO RE-POSITION SWITCH CURVES. CA ERO TSABDELV # TS
=AOSQ # Page 212 H5MASK
TC RUPTREG1 # RETURN TO CALLER.
SETMINDB CAF NARROWDB # SET 0.3 DEGREE DEADBAND. TS# FOR RCS FAILURE MONITOR
PFLITEDB EXTEND# THE RETURN FROM CALLACCS IS TO RUPTREG1. QXCH TS SMODE # **NOT BE REMOVEDFROM
ZATTEROR# ZERO THEjava.lang.StringIndexOutOfBoundsException: Range [52, 25) out of bounds for length 52 CAF POWERDB # SET DB TO 1.0 DEG. TS DB TCF CALLACCS # SET UP 1/ACCS AND RETURN TO CALLER.
NARROWDB OCTAL00155# 0.3 DEGREE SCALED AT 45. # Page 1408
WIDEDB OCTAL03434# 5.0 DEGREES SCALED AT 45.
POWERDB DEC .02222# 1.0 DEGREE SCALED AT 45.
ZATTEROR CAF EBANK6 XCHEBANK TS L # SAVE CALLERS EBANK IN L.
CAE CDUX TS CDUXD
CAE CDUY TS CDUYD
CAE CDUZ TS CDUZD TCF STOPRATE +3
STOPRATE CAF EBANK6 XCHEBANK TS L # SAVE CALLERS EBANK IN L.
+3CAF ZERO TS OMEGAPD TS OMEGAQD TS OMEGARD TS DELCDUX TS DELCDUY TS DELCDUZ TS DELPEROR TS DELQEROR TS DELREROR LXCHEBANK# RESTORE CALLERS EBANK. TC Q
# SUBROUTINE NAME: ALLCOAST # WILL BE CALLED BY FRESH STARTS AND ENGINE OFF ROUTINES. # # CALLING SEQUENCE: (SAME AS ABOVE) # # EXIT: RETURN TO Q. # # SUBROUTINES CALLED: STOPRATE, RESTORDB, NOVAC # # ZERO: (FOR ALL AXES) AOS, ALPHA, AOSTERM, OMEGAD, DELCDU, DELEROR # # OUTPUT: DRIFTBIT/DAPBOOLS, OE, JOB TO DO 1/ACCS # # DEBRIS: A, L, Q, RUPTREG1, RUPTREG2, (ITEMPS IN NOVAC)
ALLCOAST EXTEND# SAVE Q FOR RETURN QXCH RUPTREG2 # Page 1409 TC STOPRATE # CLEAR RATE INTERFACE. RETURN WITH A=0 LXCHEBANK# AND L=EBANK6. SAVE CALLER'S EBANK. TS AOSQ TS AOSQ +1 TS AOSR TS AOSR +1 TS ALPHAQ # FOR DOWNLIST. TS ALPHAR TS AOSQTERM TS AOSRTERM LXCHEBANK# RESTORE EBANK (EBANK6 NO LONGER NEEDED)
CS DAPBOOLS # SET UP DRIFTBIT MASK DRIFTBIT ADS DAPBOOLS TC RESTORDB +1# RESTORE DEADBANK TO CREW-SELECTED VALUE.
TC RUPTREG2 # RETURN.
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