# Copyright: Public domain. # Filename: SERVICE_ROUTINES.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 . # Website: www.ibiblio.org/apollo. # Pages: 1374-1380 # 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 2021112-61 # 16:27 JULY 14, 1969 # Page 1374 BANK 10 SETLOC DISPLAYS BANK COUNT* $$/DSPLA UPENT2 INHINT MASK OCT77770 TS L CS FLAGWRD4 MASK L ADS FLAGWRD4 JOIN RELINT TCF Q+1 DOWNENT2 INHINT MASK OCT77770 COM MASK FLAGWRD4 TS FLAGWRD4 TCF JOIN OCT7 EQUALS SEVEN # Page 1375 # UPFLAG AND DOWNFLAG ARE ENTIRELY GENERAL FLAG SETTING AND CLEARING SUBROUTINES. USING THEM, WHETHER OR # NOT IN INTERRUPT, ONE MAY SET OR CLEAR ANY SINGLE, NAMED BIT IN ANY ERASABLE REGISTER, SUBJECT OF COURSE TO # EBANK SETTING. A "NAMED" BIT, AS THE WORD IS USED HERE, IS ANY BIT WITH A NAME FORMALLY ASSIGNED BY THE YUL # ASSEMBLER. # # AT PRESENT THE ONLY NAMED BITS ARE THOSE IN THE FLAGWORDS. ASSEMBLER CHANGES WILL MAKE IT POSSIBLE TO # NAME ANY BIT IN ERASABLE MEMORY. # # CALLING SEQUENCES ARE AS FOLLOWS :- # TC UPFLAG TC DOWNFLAG # ADRES NAME OF FLAG ADRES NAME OF FLAG # # RETURN IS TO THE LOCATION FOLLOWING THE "ADRES" ABOUT .58 MS AFTER THE "TC". # UPON RETURN A CONTAINS THE CURRENT FLAGWRD SETTING. BLOCK 02 SETLOC FFTAG1 BANK COUNT* $$/FLAG UPFLAG CA Q TC DEBIT COM # +(15 - BIT) EXTEND ROR LCHAN # SET BIT COMFLAG INDEX ITEMP1 TS FLAGWRD0 LXCH ITEMP3 RELINT TC L DOWNFLAG CA Q TC DEBIT MASK L # RESET BIT TCF COMFLAG DEBIT AD ONE # CET DE BITS INHINT TS ITEMP3 CA LOW4 # DEC15 TS ITEMP1 INDEX ITEMP3 CA 0 -1 # ADRES TS L CA ZERO # Page 1376 EXTEND DV ITEMP1 # A = FLAGWRD, L = (15 - BIT) DXCH ITEMP1 INDEX ITEMP1 CA FLAGWRD0 TS L # CURRENT STATE INDEX ITEMP2 CS BIT15 # -(15 - BIT) TC Q # Page 1377 # DELAYJOB -- A GENERAL ROUTINE TO DELAY A JOB A SPECIFIC AMOUNT OF TIME BEFORE PICKING UP AGAIN. # # ENTRANCE REQUIREMENTS ... # CAF DT # DELAY JOB FOR DT CENTISECS # TC BANKCALL # CADR DELAYJOB BANK 06 SETLOC DLAYJOB BANK # THIS MUST REMAIN IN BANK 0 **************************************** COUNT* $$/DELAY DELAYJOB INHINT TS Q # STORE DELAY DT IN Q FOR DLY -1 IN CAF DELAYNUM # WAITLIST DELLOOP TS RUPTREG1 INDEX A CA DELAYLOC # IS THIS DELAYLOC AVAILABLE EXTEND BZF OK2DELAY # YES CCS RUPTREG1 # NO, TRY NEXT DELAYLOC TCF DELLOOP DXCH BUF2 TC BAILOUT1 # NO AVAILABLE LOCS. OCT 1104 OK2DELAY CA TCSLEEP # SET WAITLIST IMMEDIATE RETURN TS WAITEXIT CA FBANK AD RUPTREG1 # STORE BBANK FOR TASK CALL TS L CAF WAKECAD # STORE CADR FOR TASK CALL TCF DLY2 -1 # DLY IS IN WAITLIST ROUTINE TCGETCAD TC MAKECADR # GET CALLERS FCADR INDEX RUPTREG1 TS DELAYLOC # SAVE DELAY CADRS TC JOBSLEEP WAKER CAF ZERO INDEX BBANK XCH DELAYLOC # MAKE DELAYLOC AVAILABLE # Page 1378 TC JOBWAKE TC TASKOVER TCSLEEP GENADR TCGETCAD -2 WAKECAD GENADR WAKER # Page 1379 # GENTRAN, A BLOCK TRANSFER ROUTINE # WRITTEN BY D. EYLES # MOD 1 BY KERNAN UTILITYM REV 17 11/18/67 # MOD 2 BY SCHULENBERG (REMOVE RELINT) SKIPPER REV 4 2/28/68 # # THIS ROUTINE IS USEFUL FOR TRANSFERING N CONSECUTIVE ERASABLE OR FIXED QUANTITIES TO SOME OTHER N # CONSECUTIVE ERASABLE LOCATIONS. IF BOTH BLOCKS OF DATA ARE IN SWITCHABLE EBANKS, THEY MUST BE IN THE SAME ONE. # # GENTRAN IS CALLABLE IN A JOB AS WELL AS A RUPT. THE CALLING SEQUENCE IS: # I CA N-1 # # OF QUANTITIES MINUS ONE. # I +1 TC GENTRAN # IN FIXED-FIXED. # I +2 ADRES L # STARTING ADRES OF DATA TO BE MOVED. # I +3 ADRES M # STARTING ADRES OF DUPLICATION BLOCK. # I +4 # RETURNS HERE. # # GENTRAN TAKES 25 MCT'S (300 MICROSECONDS) PER ITEM + 5 MCT'S (60 MICS) FOR ENTERING AND EXITING. # A, L, AND ITEMP1 ARE NOT PRESERVED. BLOCK 02 SETLOC FFTAG4 BANK EBANK= ITEMP1 COUNT* $$/TRAN GENTRAN INHINT TS ITEMP1 # SAVE N-1 INDEX Q # C(Q) = ADRES L. AD 0 # ADRES (L + N - 1). INDEX A CA 0 # C(ABOVE). TS L # SAVE DATA. CA ITEMP1 INDEX Q AD 1 # ADRES (M + N - 1). INDEX A LXCH 0 # STUFF IT. CCS ITEMP1 # LOOP UNTIL N-1 = 0. TCF GENTRAN +1 TCF Q+2 # RETURN TO CALLER. # Page 1380 # B5OFF ZERO BIT 5 OF EXTVBACK, WHICH IS SET BY TESTXACT. # MAY BE USED AS NEEDED BY ANY EXTENDED VERB WHICH HAS DONE TESTXACT COUNT* $$/EXTVB B5OFF CS BIT5 MASK EXTVBACT TS EXTVBACT TC ENDOFJOB