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. |
044205,000002: ## Copyright: Public domain.
044206,000003: ## Filename: INTER-BANK_COMMUNICATION.agc
044207,000004: ## Purpose: A log section of Zerlina 56, the final revision of
044208,000005: ## Don Eyles's offline development program for the variable
044209,000006: ## guidance period servicer. It also includes a new P66 with LPD
044210,000007: ## (Landing Point Designator) capability, based on an idea of John
044211,000008: ## Young's. Neither of these advanced features were actually flown,
044212,000009: ## but Zerlina was also the birthplace of other big improvements to
044213,000010: ## Luminary including the terrain model and new (Luminary 1E)
044214,000011: ## analog display programs. Zerlina was branched off of Luminary 145,
044215,000012: ## and revision 56 includes all changes up to and including Luminary
044216,000013: ## 183. It is therefore quite close to the Apollo 14 program,
044217,000014: ## Luminary 178, where not modified with new features.
044218,000015: ## Reference: pp. 989-992
044219,000016: ## Assembler: yaYUL
044220,000017: ## Contact: Ron Burkey <info@sandroid.org>.
044221,000018: ## Website: www.ibiblio.org/apollo/index.html
044222,000019: ## Mod history: 2017-07-28 MAS Created from Luminary 210.
044223,000020: ## 2017-08-27 MAS Updated for Zerlina 56.
044224,000021: ## 2021-05-30 ABS ISWCALLL -> ISWCALL
044225,000022:
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Page 989 |
044227,000024: # THE FOLLOWING ROUTINE CAN BE USED TO CALL A SUBROUTINE IN ANOTHER BANK. IN THE BANKCALL VERSION, THE
044228,000025: # CADR OF THE SUBROUTINE IMMEDIATELY FOLLOWS THE TC BANKCALL INSTRUCTION, WITH C(A) AND C(L) PRESERVED.
044229,000026:
044230,000027: 4616 BLOCK 02
044231,000028: 4616 COUNT* $$/BANK
044232,000029: 4616 52134 BANKCALL DXCH BUF2 # SAVE INCOMING A,L.
044233,000030: 4617 50002 INDEX Q # PICK UP CADR.
044234,000031: 4620 30000 CA 0
044235,000032: 4621 24002 INCR Q # SO WE RETURN TO THE LOC. AFTER THE CADR.
044236,000033:
044237,000034: # SWCALL IS IDENTICAL TO BANKCALL, EXCEPT THAT THE CADR ARRIVES IN A.
044238,000035:
044239,000036: 4622 54001 SWCALL TS L
044240,000037: 4623 22004 LXCH FBANK # SWITCH BANKS, SAVING RETURN.
044241,000038: 4624 75012 MASK LOW10 # GET SUB-ADDRESS OF CADR.
044242,000039: 4625 56002 XCH Q # A,L NOW CONTAINS DP RETURN.
044243,000040: 4626 52134 DXCH BUF2 # RESTORING INPUTS IF THIS IS A BANKCALL.
044244,000041: 4627 50002 INDEX Q
044245,000042: 4630 02000 TC 10000 # SETTING Q TO SWRETURN.
044246,000043:
044247,000044: 4631 56134 SWRETURN XCH BUF2 +1 # COMES HERE TO RETURN TO CALLER. C(A,L)
044248,000045: 4632 56004 XCH FBANK # ARE PRESERVED FOR RETURN.
044249,000046: 4633 56134 XCH BUF2 +1
044250,000047: 4634 00133 TC BUF2
044251,000048:
044252,000049: # THE FOLLOWING ROUTINE CAN BE USED AS A UNILATERAL JUMP WITH C(A,L) PRESERVED AND THE CADR IMMEDIATELY
044253,000050: # FOLLOWING THE TC POSTJUMP INSTRUCTION.
044254,000051:
044255,000052: 4635 56002 POSTJUMP XCH Q # SAVE INCOMING C(A).
044256,000053: 4636 50000 INDEX A # GET CADR.
044257,000054: 4637 30000 CA 0
044258,000055:
044259,000056: # BANKJUMP IS THE SAME AS POSTJUMP, EXCEPT THAT THE CADR ARRIVES IN A.
044260,000057:
044261,000058: 4640 54004 BANKJUMP TS FBANK
044262,000059: 4641 75012 MASK LOW10
044263,000060: 4642 56002 XCH Q # RESTORING INPUT C(A) IF THIS WAS A
044264,000061: 4643 50002 Q+10000 INDEX Q # POSTJUMP.
044265,000062: 4644 12000 PRIO12 TCF 10000 # PRIO12 = TCF 10000 = 12000
044266,000063:
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Page 990 |
044268,000065: # THE FOLLOWING ROUTINE GETS THE RETURN CADR SAVED BY SWCALL OR BANKCALL AND LEAVES IT IN A.
044269,000066:
044270,000067: 4645 35012 MAKECADR CAF LOW10
044271,000068: 4646 70133 MASK BUF2
044272,000069: 4647 60134 AD BUF2 +1
044273,000070: 4650 00002 TC Q
044274,000071:
044275,000072:
044276,000073: 4651 54135 SUPDACAL TS MPTEMP
044277,000074: 4652 56004 XCH FBANK # SET FBANK FOR DATA.
044278,000075: 4653 00006 EXTEND
044279,000076: 4654 04007 ROR SUPERBNK # SAVE FBANK IN BITS 15-11, AND
044280,000077: 4655 56135 XCH MPTEMP # SUPERBANK IN BITS 7-5.
044281,000078: 4656 75012 MASK LOW10
044282,000079: 4657 56001 XCH L # SAVE REL. ADR. IN BANK, FETCH SUPERBITS.
044283,000080: 4660 00004 INHINT # BECAUSE RUPT DOES NOT SAVE SUPERBANK.
044284,000081: 4661 00006 EXTEND
044285,000082: 4662 01007 WRITE SUPERBNK # SET SUPERBANK FOR DATA.
044286,000083: 4663 50001 INDEX L
044287,000084: 4664 32000 CA 10000 # PINBALL (FIX MEM DISP) PREVENTS DCA HERE
044288,000085: 4665 56135 XCH MPTEMP # SAVE 1ST WD, FETCH OLD FBANK AND SBANK.
044289,000086: 4666 00006 EXTEND
044290,000087: 4667 01007 WRITE SUPERBNK # RESTORE SUPERBANK.
044291,000088: 4670 00003 RELINT
044292,000089: 4671 54004 TS FBANK # RESTORE FBANK.
044293,000090: 4672 30135 CA MPTEMP # RECOVER FIRST WORD OF DATA.
044294,000091: 4673 00002 RETURN # 24 WDS. DATACALL 516 MU, SUPDACAL 432 MU
044295,000092:
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Page 991 |
044297,000094: # THE FOLLOWING ROUTINES ARE IDENTICAL TO BANKCALL AND SWCALL EXCEPT THAT THEY ARE USED IN INTERRUPT.
044298,000095:
044299,000096: 4674 52073 IBNKCALL DXCH RUPTREG3 # USES RUPTREG3,4 FOR DP RETURN ADDRESS.
044300,000097: 4675 50002 INDEX Q
044301,000098: 4676 30000 CAF 0
044302,000099: 4677 24002 INCR Q
044303,000100:
044304,000101: 4700 54001 ISWCALL TS L
044305,000102: 4701 22004 LXCH FBANK
044306,000103: 4702 75012 MASK LOW10
044307,000104: 4703 56002 XCH Q
044308,000105: 4704 52073 DXCH RUPTREG3
044309,000106: 4705 50002 INDEX Q
044310,000107: 4706 02000 TC 10000
044311,000108:
044312,000109: 4707 56073 ISWRETRN XCH RUPTREG4
044313,000110: 4710 56004 XCH FBANK
044314,000111: 4711 56073 XCH RUPTREG4
044315,000112: 4712 00072 TC RUPTREG3
044316,000113:
044317,000114: # 2. USPRCADR ACCESSES INTERPRETIVE CODING IN OTHER THAN THE USER'S FBANK. THE CALLING SEQUENCE IS AS FOLLOWS:
044318,000115:
044319,000116: # L TC USPRCADR
044320,000117: # L+1 CADR INTPRETX INTPRETX IS THE INTERPRETIVE CODING
044321,000118: # RETURN IS TO L+2
044322,000119:
044323,000120:
044324,000121: 4713 54164 USPRCADR TS LOC # SAVE A
044325,000122: 4714 34744 CA BIT8
044326,000123: 4715 54023 TS EDOP # EXIT INSTRUCTION TO EDOP
044327,000124: 4716 30006 CA BBANK
044328,000125: 4717 54165 TS BANKSET # USER'S BBANK TO BANKSET
044329,000126: 4720 50002 INDEX Q
044330,000127: 4721 30000 CA 0
044331,000128: 4722 54004 TS FBANK # INTERPRETIVE BANK TO FBANK
044332,000129: 4723 75012 MASK LOW10 # YIELDS INTERPRETIVE RELATIVE ADDRESS
044333,000130: 4724 56002 XCH Q # INTERPRETIVE ADDRESS TO Q, FETCHING L+1
044334,000131: 4725 56164 XCH LOC # L+1 TO LOC, RETRIEVING ORIGINAL A
044335,000132: 4726 14643 TCF Q+10000
044336,000133:
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Page 992 |
044338,000135: # THERE ARE FOUR POSSIBLE SETTINGS FOR CHANNEL 07. (CHANNEL 07 CONTAINS THE SUPERBANK SETTING.)
044339,000136: # PSEUDO-FIXED OCTAL PSEUDO
044340,000137: # SUPERBANK SETTING S-REG. VALUE BANK NUMBERS ADDRESSES
044341,000138: # ---------- ------- ------------ ------------ ------------
044342,000139:
044343,000140: # SUPERBANK 3 0XX 2000 - 3777 30 - 37 70000 - 107777 (WHERE XX CAN BE ANYTHING AND
044344,000141: # WILL USUALLY BE SEEN AS 11)
044345,000142: # SUPERBANK 4 100 2000 - 3777 40 - 47 110000 - 127777 (AS FAR AS IT CAN BE SEEN,
044346,000143: # ONLY BANKS 40-43 WILL EVER BE
044347,000144: # AND ARE PRESENTLY AVAILABLE)
044348,000145: # SUPERBANK 5 101 2000 - 3777 50 - 57 130000 - 147777 (PRESENTLY NOT AVAILABLE TO
044349,000146: # THE USER)
044350,000147: # SUPERBANK 6 110 2000 - 3777 60 - 67 150000 - 167777 (PRESENTLY NOT AVAILABLE TO
044351,000148: # THE USER)
044352,000149: # *** THIS ROUTINE MAYBE CALLED BY ANY PROGRAM LOCATED IN BANKS 00 - 27. I.E., NO PROGRAM LIVING IN ANY
044353,000150: # SUPERBANK SHOULD USE SUPERSW. ***
044354,000151:
044355,000152: # SUPERSW MAYBE CALLED IN THIS FASHION:
044356,000153:
044357,000154: # CAF ABBCON WHERE -- ABBCON BBCON SOMETHIN --
044358,000155: # TCR SUPERSW (THE SUPERBNK BITS ARE IN THE BBCON)
044359,000156: # ... ...
044360,000157: # . .
044361,000158: # . .
044362,000159:
044363,000160: # OR IN THIS FASHION :
044364,000161:
044365,000162: # CAF SUPERSET WHERE SUPERSET IS ONE OF THE FOUR AVAILABLE
044366,000163: # TCR SUPERSW SUPERBANK BIT CONSTANTS:
044367,000164: # ... ... SUPER011 OCTAL 60
044368,000165: # . . SUPER100 OCTAL 100
044369,000166: # . . SUPER101 OCTAL 120
044370,000167: # SUPER110 OCTAL 140
044371,000168:
044372,000169: 4727 00006 SUPERSW EXTEND
044373,000170: 4730 01007 WRITE SUPERBNK # WRITE BITS 7-6-5 OF THE ACCUMULATOR INTO
044374,000171: # CHANNEL 07
044375,000172: 4731 00002 TC Q # TC TO INSTRUCTION FOLLOWING
044376,000173: # TC SUPERSW
044377,000174:
End of include-file INTER-BANK_COMMUNICATION.agc. Parent file is MAIN.agc