Revision e9fdba28bc24263664b236ea2fb026326c582d33 authored by Ron Burkey on 24 December 2017, 21:04:22 UTC, committed by Ron Burkey on 24 December 2017, 21:04:22 UTC
1 parent d7b4237
LAMB.agc
### FILE="Main.annotation"
## Copyright: Public domain.
## Filename: LAMB.agc
## Purpose: A section of Sunburst revision 37, or Shepatin revision 0.
## It is part of an early development version of the software
## for Apollo Guidance Computer (AGC) on the unmanned Lunar
## Module (LM) flight Apollo 5. Sunburst 37 was the program
## upon which Don Eyles's offline development program Shepatin
## was based; the listing herein transcribed was actually for
## the equivalent revision 0 of Shepatin.
## This file is intended to be a faithful transcription, except
## that the code format has been changed to conform to the
## requirements of the yaYUL assembler rather than the
## original YUL assembler.
## Reference: pp. 865-884
## Assembler: yaYUL
## Contact: Ron Burkey <info@sandroid.org>.
## Website: www.ibiblio.org/apollo/index.html
## Mod history: 2017-05-24 MAS Created from Sunburst 120.
## 2017-06-10 MAS Updated for Sunburst 37.
## 2017-06-14 HG Fix interpretive operand COGAMIN -> COGAMN
## 2017-06-23 RSB Proofed comment text with
## octopus/ProoferComments.
## Page 865
BANK 36
EBANK= RTN
# PROGRAM NAME ... LAMBERT ROUTINE DATE ... 11/29/66
#
# MOD NO ... 3 LOG SECTION ...LAMB
# ASSEMBLY ... SUNBURST REVISION 03
#
# MODIFICATION BY ... J.J. BESTER AND L.G. HULL
# FUNCTIONAL DESCRIPTION ...
# THIS SUBROUTINE SOLVES FOR THE CONIC TRAJECTORY BETWEEN R0VEC AND R1VEC WHICH SATISFIES A SPECIFIED TIME
# OF FLIGHT, TFL. A SLOPE ITERATOR IS USED TO FORCE THE TIME OF FLIGHT TO CONVERGE.
# CALLING SEQUENCE:
# THIS ROUTINE IS CALLED IN THE INTERPRETIVE MODE BY
# CALL
# LAMBERT
# NORMAL EXIT MODE:
# EXIT FROM THIS ROUTINE IS IN BASIC BY
# TCF ENDOFJOB
# OUTPUT:
# THE OUTPUT OF THIS ROUTINE (WITH SCALING INDICATED IN PARENTHESES) CONSISTS OF ...
# V0VEC (+7) -THE REQUIRED VELOCITY VECTOR IN METERS/CENTISECONDS
# DONESW -THE DONE SWITCH INDICATING WHETHER THE JOB HAS BEEN COMPLETED. WHEN THE JOB IS DONE IT
# IS TURNED ON.
# CONVSW - THE CONVERGENCE SWITCH INDICATING WHETHER THE ITERATION PROCESS HAS CONVERGED. IT IS TURNED
# ON IF CONVERGENCE HAS NOT OCCURRED, BUT AN ESTIMATE OF V0VEC IS NEVERTHELESS GIVEN.
# INPUT:
# THE QUANTITIES INPUTED AND THEIR SCALE FACTORS ARE ...
## Page 866
# RCOV (+25) -INITIAL POSITION IN METERS.
# R1VEC (+25) -THE TARGET POSITION IN METERS.
# TFL (+28) -TIME OF FLIGHT IN CENTISECONDS.
# UNNORM (+1) -A UNIT VECTOR IN THE DIRECTION OF THE ANGULAR MOMENTUM VECTOR.
# TAG5 -A PARAMETER SET TO -0.5 IF THE TRUE ANOMALY DIFFERENCE BETWEEN R0VEC AND R1VEC IS MORE THAN
# 180 DEGREES. OTHERWISE IT SHOULD BE SET TO +0.5.
# GUESSW -THE GUESS SWITCH, IF A FIRST GUESS TO THE COTANGENT OF THE FLIGHT PATH ANGLE IS AVAILABLE THE
# SWITCH SHOULD BE SET , CLEAR IF NO GUESS IS FORTHCOMING.
# COGAVAIL (+5) -THE AVAILABLE COTANGENT OF THE FLIGHT PATH ANGLE. IF A GUESS IS AVAILABLE THE GUESSW SHOULD BE
# SET AND THE GUESS PLACED HERE BEFORE THE LAMBERT ROUTINE IS ENTERED. AFTER ONE PASS THROUGH
# LAMBERT, THE LAST ITERATED VALUE OF THE COTANGENT IS PLACED IN COGAVAIL AND MAY BE USED AS THE
# GUESS FOR THE NEXT PASS.
# THE FOLLOWING SWITCHES ARE IN THIS ROUTINE , THOUGH THEY ARE NOT USED FOR THIS PARTICULAR MISSION AND ARE
# ALWAYS CLEAR IN 206.
# MOONSW - THE MOON SWITCH: 1-INSIDE THE SPHERE OF INFLUENCE OF THE MOON (35,000 N.MI.)
# 0-OUTSIDE
# ESCPSW -THE ESCAPE SWITCH: 1-HYPERBOLIC ORBIT
# 0-ELLIPTIC ORBIT
# SMANGLSW -SMALL ANGLE SWITCH: 1-SMALL TRANSFER ANGLES
# 0-LARGE ANGLES (THE USUAL CASE)
# TWO SWITCHES ARE USED INTERNALLY. THEY ARE ...
# ITERSW -THE ITERATION SWITCH: 1-FIRST ITERATION IS TO TAKE PLACE
# 0-SUBSEQUENT ITERATIONS
# PIESW -THE 180 DEGREES SWITCH: 1-ANGLES GREATER THAN 180 DEGREES WITH TAG5=-0.5
# 0-ANGLES LESS THAN 180, TAG5=0.5
# DEBRIS ...
# THE LAMBERT ROUTINE INTERNALLY USES SCALING WHICH IS DIFFERENT FROM THAT USED BY THE MAIN PROGRAM.
# INTERNAL TO LAMBERT,
# 7
# LENGTH IS SCALED BY RNORM = 2 RE
# VELOCITY IS SCALED BY VNORM = 2 SQRT(MU/RE)
## Page 867
# 10 3
# TIME IS SCALED BY TNORM = 2 SQRT(RE /MU)
# WHERE MU IS THE GRAVITATIONAL CONSTANT TIMES THE MASS OF THE EARTH AND RE IS THE RADIUS OF THE EARTH.
# 22
# FOR RE, 2 METERS IS USED. HOWEVER, INPUT AND OUTPUT QUANTITIES HAVE SCALING COMPATIBLE WITH THE REST OF THE
# PROGRAM. RESCALING WILL BE DONE BY THE LAMBERT ROUTINE BEFORE COMPUTATIONS BEGIN.
## Page 868
LAMBERT SET SETPD
ITERSW
0D
CLEAR CLEAR
MOONSW
DONESW
CLEAR CLEAR
SMANGLSW
PIESW
DLOAD BPL
TAG5
+3
SET
PIESW
BON
GUESSW
+6
DLOAD
D1/4
STORE TWEEKIT
GOTO
PROG
DLOAD
D1/64
STORE TWEEKIT
PROG DLOAD DMP
TFL
TFACT
SL3 # RESCALE TIME OF FLIGHT
STOVL TF
RCOV # RCOV (+25) ASSUMED
VSR4
STCALL R0VEC
DTPRD
CALL
CGTH
DLOAD NORM
36D
X1
BDDV SL*
32D
0 -7,1
STODL 30D # 30D=R (+7)
D1/2
DSU SR1
28D
STORE 20D # 20D=1-CSTH (+2) (FOR PCALC IN LOOP)
NORM PDDL # 1-CSTH (+2-N1) PL AT 2D
## Page 869
X1
30D
DDV # PL AT 0D
SL* SQRT
0 -4,1
BOFF BDSU
ESCPSW
ELIPLMTS
16D
PUSH ABS # PL AT 2D
DMP BDSU # PL AT 0D
PERCENT
STADR
STODL 26D # 26D=COGAMX
24D
SR1
STORE 18D # 18D=SIN(TH) (+2) (FOR PCALC IN LOOP)
NORM PDDL # SIN(TH) (+1-N1) PL AT 2D
X1
28D
SR DSU
6
30D
STORE 30D # 30D=COS(TH)-R (+7) (FOR PCALC IN LOOP)
BON DDV # PL AT 0D
PIESW
ABSMIN
SL* BOV
0,1
ABSMIN
PUSH ABS # (CSTH-R)/SNTH (+5) PL AT 2D
DMP DAD # PL AT 0D
PERCENT
GOTO
+4
ABSMIN SETPD DLOAD # PL AT 0D
0D
ABSOLMIN
STORE 22D # 22D=COGAMN (+5)
BOFF DLOAD # PL AT 2D
GUESSW
FIRSTCOG
COGAVAIL
BON DSU # IF ESCPSW IS OFF, CHECK IF COGAVAIL
ESCPSW # IS LESS THAN COGAMN
LOOP
22D
BPL DLOAD
## Page 870
+5
COGAMN # COGAVAIL IS A BAD GUESS, SO PUT
STORE COGAVAIL # COGAMN IN COGAVAIL
GOTO
LOOP
DLOAD
COGAVAIL
LOOP STORE INDEP
DMP DSU
18D
30D
NORM BDDV
X1
20D
SL* BOV
0 -7,1
SPEEDY
PSTORE STCALL 34D # 34D=P (+2)
SMAR
CALL
TRIGFNS
CALL
SMA
CALL
DELTIME
ZOOM STORE DEPVAR
BDSU
TF
STORE DELDEP
ABS DSU
DEPCRIT
BMN CALL
TIMECONV
ITERATOR
ABS DSU
NEARZERO
BMN DLOAD
NOSOL
DEPVAR
STODL PREVDEP
DELINDEP
DAD GOTO
INDEP
LOOP
FIRSTCOG SR1 PDDL # PL AT 2D
26D
SR1 DAD # PL AT 0D
GOTO
LOOP
## Page 871
TIMECONV DLOAD
INDEP
STORE COGAVAIL
STCALL 18D # 18D=COGA (+5)
INITV
SET EXIT
DONESW
TCF ENDOFJOB
NOSOL SET GOTO
CONVSW
TIMECONV
ELIPLMTS PUSH DAD # PL AT 2D
16D
PUSH ABS # PL AT 4D
DMP BDSU # PL AT 2D
PERCENT
STADR
STODL 26D # 26D=COGAMX (+5)
28D
SR DSU
6
30D
STODL 30D # 30D=CSTH-R (+7)
24D
SR1
STODL 18D
16D
DSU PUSH # PL AT 0D,2D
ABS DMP
PERCENT
DAD # PL AT 0D
GOTO
ABSMIN +3
SPEEDY DLOAD GOTO
DZERO
ZOOM
# V0VEC (+1) IN MPAC.
## Page 872
# THIS SECTION CALCULATES THE SINE AND COSINE OF THE ANGLE BETWEEN R0VEC
# AND R1VEC. THE SIGN OF SIN(TH) IS DETERMINED BY TAG5. THE COSINE OF THE
# ANGLE IS STORED IN 28D WHILE THE SINE IS IN MPAC AS WELL AS IN 24D, BOTH
# ARE SCALED BY (+2).
# ASSUMES R0VEC (+7) , R1VEC (+7) , TAG5 (+/- ACCORDING TO ANGLE GREATER
# OR LESS THAN 180 DEG) AVAILABLE.
DTPRD VLOAD UNIT
R0VEC
STODL UNR1
36D
STOVL 32D # 32D=R1 (+7)
R1VEC
VSR4
UNIT PUSH # 32D=R1 (+7) PL AT 6D
DOT SL1
UNR1
STOVL 28D # 28D=COS(TH) (+1)
UNR1
VXV VSL1 # PL AT 0D
ABVAL SIGN
TAG5
STORE 24D # 24D=SIN(TH) (+1)
RVQ
# 28D=COS(TH) (+1), 24D=SIN(TH) (+1)=MPAC.
## Page 873
# THIS SECTION COMPUTES COT(TH/2) = (1+COS(TH))/SIN(TH) SCALED BY (+5),
# AND STORES IT IN 16D. NOTE THAT COT(TH/2) WILL OVERFLOW IF THE ANGLE
# TH IS LESS THAN 3 DEG 35 MINUTES OR GREATER THAN 356 DEG 25 MINUTES.
# ASSUMES SNTH(+1) IN MPAC, 28D=CSTH (+1).
CGTH BZE NORM # SNTH (+1-N1)
THISPI
X1
PDDL SR1
28D
DAD DDV # PL AT 0D
D1/4
SL*
0 -4,1
THISPI STORE 16D
RVQ
# COGTH (+5)=16D.
## Page 874
# THIS SECTION USES COT(GAMMA),I.E. COGA (+5) AND P (+2) TO CALCULATE R1A
# SCALED BY (+6) AND STORES THE RESULT IN 14D.
# ASSUMES COGA=INDEP (+5), P (+2)=34D.
SMAR DLOAD DSQ
INDEP
DAD NORM
D1/1024
X1
DMP SR*
34D
0 -6,1
BDSU BOV
D1/32
SPEEDY
SMARSTOR STORE 14D # 14D=R1A (+6)
RVQ
# R1A (+6)=2-P(1+COGA*COGA) IN 14D.
## Page 875
# ASSUMES 16D=COGTH (+5), INDEP=COGA(+5), 34D=P (+2), 14D= R1A (+6).
TRIGFNS DLOAD DSU
16D
INDEP
STORE 36D # 36D=DCOT=COT(TH/2)-COGA (+5)
DSQ NORM
X1
DMP SR1
34D
PDDL ABS # DCOT*DCOT (+13-N1) PL AT 2D
14D
NORM BDDV # COGDS (+7-N1+N2) PL AT 0D
S1
XSU,1 SR*
S1
3,1
BOV
COGDSOVF
COGDSTOR PUSH SIGN # COGDS (+10)
14D
DAD NORM
D1/1024
X1
BDDV PDDL # 2D=1-CSD (-7+N1) PL AT 4D
D1/4
0D
SQRT NORM
X2
DMP SIGN
2D
36D # SND=+-(1-CSD)SQRT(COGDS) (-2+N1-N2)
XSU,2 BON
X1
ESCPSW
HYPTRIG # DUE TO DIFFERENT SCALING
SR* PDDL # DXNGE WITH PD,2D=SND (+1) PL AT 4D
3,2
SL* BOV
0 -8D,1
HALFCIRC
COSFN PUSH DCOMP # 4D=(1-CSD)(+1) PL AT 6D
DAD ACOS
D1/2
SIGN DMP
36D
PI/4 # CONVERT FROM CIRCLES TO RADIANS/8
BPL DAD
+2
PI/4
## Page 876
STORE 0D # 0D=DELTAE (+3)
RVQ
HALFCIRC DLOAD GOTO
NEARI
COSFN
HYPTRIG SR* DCOMP
12D,2
PDDL # DXNGE WITH PD,2D=SND (+10) PL AT 4D
SL* PUSH
0 -17D,1 # 4D=(1-CSD) (+10) PL AT 6D
DCOMP DAD
D1/1024
SR1 PDDL # PL AT 8D
2D
SR1 DAD # ARG=COSH(DELG)+SINH(DELG) (+11) PL AT 6D
NORM BDSU # THIS IS AN ARCSINH ROUTINE
SPLOC # ARG=.5-ARG (+11-N1)
D1/2
EXIT
ARCSINH CA TEN
ADS SPLOC # C(SPLOC)=10-N1
TC POLY
DEC 9
DZERO 2DEC .0
2DEC .015625
2DEC .015625
2DEC .020833333
2DEC .03125
2DEC .05
2DEC .083333333
2DEC .14285714
2DEC .25
2DEC .44444444
2DEC .8
CAF ZERO
## Page 877
TS MPAC +2
EXTEND
DCA LN2/128
DXCH MPAC # MPAC,+1 CONTAINS LN2/128
DXCH SPLOC +1 # SPLOC+1,+2 CONTAINS LN(1/2-ARGS)/128
CA SPLOC
TC SHORTMP
DXCH MPAC +1
DXCH MPAC # MPAC CONTAINS (10-N1)LN2/128
DXCH SPLOC +1 # A,L CONTAIN LN(1/2-ARGS)/128
EXTEND
DCOM
DAS MPAC
TC INTPRET
SR
5
STORE 0D # 0D=DELG (+12) PL AT 6D
RVQ
COGDSOVF DLOAD GOTO
BIGNO # BIGNO=NEARONE-DP1/1024
COGDSTOR
# RETURNS WITH 0D=DELE (+3) OR DELG(+12),,2D=SND (+1 OR +10),4D=1-CSD (+1
# OR +10), AND PUSHLOC AT 6D
## Page 878
# ASSUMES 14D=R1A (+6), 32D= R1 (+7)
SMA DLOAD NORM # THIS IS ESSENTIALLY A FLOATING POINT SUB
14D # C(SPLOC+1)=-N1
SPLOC +1 # SPLOC LATER WILL BE STORED IN X1 FOR SHF
PDDL NORM
32D
SPLOC # C(SPLOC)=-N2
SR1 DDV
ABS EXIT # ABS(R1/R1A) (+2+N1-N2)
CS SPLOC +1
AD SPLOC
TS SPLOC
TS CYR
CA CYR
DOUBLE
OVSK
TCF EVEN
ODD CA ONE
TCF STORETAG
EVEN CA ZERO
STORETAG TS SPLOC +1 # A TAG TO DESIGNATE ADDITIONAL SHIFTRIGHT
ADS SPLOC # C(SPLOC)=N1-N2+0 OR 1
CA SPLOC
TS SR
AD SR
TS SPLOC # C(SPLOC)=3(N1-N2+0 OR 1)/2
TC INTPRET
LXC,1 SR*
SPLOC +1
0,1
PUSH LXA,2 # ABS(R1/R1A) (+2+N1-N2+0 OR 1) PL DOWN 2
SPLOC # C(X2)=+3(N1-N2+0 OR 1)/2
SQRT DMP # ARG TO THE 3/2 POWER,SCALED +3+(3/2)(N1
# -N2 +0 OR 1) PL UP 2
BOFF DMP
MOONSW
+2
ROOTMU
STORE 12D # 12D=SQRT(ABS(R1/R1A))ABS(R1/R1A)
RVQ # SCALED (+3 OR +7)+(3/2)(N1-N2+0 OR 1)
# SMA TO THE 3/2 POWER * ROOTMU IN 12D.
# IF LSW1 SET, INSIDE SPHERE AND 12D SCALED +7+C(X2)
# IF LSW1 OFF, OUTSIDE SPHERE AND 12D SCALED +3+C(X2)
## Page 879
# THIS IS KEPLERS EQUATION FOR TIME-OF-FLIGHT BETWEEN TWO POINTS ON A
# CONIC TRAJECTORY. IT ASSUMES R1A (+6)=14D, P (+2)=34D, 1-CSD (+1,+10,-2
# =4D, SND (+1,+10,-2)=2D, D (+3,+12,0)=0D.
DELTIME DLOAD DMP # PL AT 6D
34D
14D
SL BOV
6
SPEEDY
ABS SQRT
DMP # PL AT 4D
DMP TLOAD
INDEP
MPAC # CHANGES MODE TO TP (00001).
PDDL DSU # SQRT(P ABS(R1A))(1-CSD)COGA (+7 OR 16)
14D # PL AT 7D
D1/64
DMP
2D
TLOAD PDDL # (R1A-1)SND (+7 OR16)
MPAC # CHANGES MODE TO TP PL AT 10D
0D
SR4 TAD # PL PUSHES UP 3 SINCE TAD GOVERNS INSTEAD
TAD # OF MODE. MODE REMAINS DP. PL AT 7D,4D
NORM SIGN
X1
14D
DMP XAD,1 # T (+(3 OR 7)+C(X2)+(7 OR 16)+C(X1))
12D
X2
BON
SMANGLSW
THETASM
BOFF BOFF
MOONSW
NEARERTH
ESCPSW
+4
SR* GOTO
0 -13D,1
TMESTORE
SR* GOTO
0 -4,1
TMESTORE
NEARERTH BOFF SR*
ESCPSW
+4
0 -9D,1
GOTO
## Page 880
TMESTORE
SR*
0,1
TMESTORE BOV
TIMELONG
STORE 12D # 12D=T (+10)
SETPD RVQ
0D
THETASM BOFF SL4 # T (+7 +C(X1))
ITERSW
ERTHSFER
ERTHSFER SR* GOTO
3,1
TMESTORE
TIMELONG DLOAD GOTO
NEARI
TMESTORE +2
# T (+10) IN 12D AND IN MPAC.
## Page 881
# THIS IS A GENERAL NEWTON ITERATOR WHEREIN A STARTING INDEPENDENT VARIABL
# IS INPUT AND THE CHANGE IN THE INDEPENDENT VARIABLE IS OUTPUT. THE
# BOUNDS OF THE INDEPENDENT VARIABLE,MAXINDEP AND MININDEP, MUST BE AVAILA
# BLE AND SWITCH 7 MUST BE SET. IF A GOOD GUESS TO INDEP IS KNOWN,
# TWEEKIT SHOULD BE SET TO A SMALL FRACTION,DEPENDING ON HOW WELL INDEP IS
# KNOWN. OTHERWISE THE FIRST GUESS TO INDEP SHOULD BE .5(MAXINDEP+MININ-
# DEP) AND TWEEKIT SHOULD BE SET TO .25. IT IS ASSUMED THAT THE CRITERIA
# FOR EXITING FROM THE CALLING PROGRAMS LOOP IS IN THE CALLING PROGRAM.
# THE DEPENDENT VARIABLE MUST BE IN DEPVAR AND THE PREVIOUS ONE MUST BE IN
# PREVDEP. THE SIGN OF TWEEKIT SOULD BE +/- ACCORDING TO WHETHER THE
# SINGLE-VALUED FUNCTION IS MONOTONICLY INCREASING OR DECREASING.
ITERATOR BONCLR DLOAD
ITERSW
FRSTTIME
DEPVAR
DSU NORM
PREVDEP
X1
PDDL SR1 # PL DOWN 2
DELDEP
DDV # PL UP 2
DMP SL*
DELINDEP
1,1
NEWDELTA STORE DELINDEP
BMN DLOAD # NOW MUST CHECK TO SEE IF THIS DELTA CAN
MINCHECK # CAUSE THE INDEPENDENT VARIABLE TO EXCEED
MAXINDEP # ITS LIMITS.
DSU DSU
INDEP
DELINDEP
BOV BMN
XEEDULMT
XEEDULMT
DLOAD RVQ
DELINDEP
FRSTTIME DLOAD DMP
MININDEP
TWEEKIT # TWEEKIT SHOULD BE SET .25 IF THE FIRST
# GUESS OF INDEP WAS .5(MAXINDEP+MININDEP)
PDDL DMP # DOWN 2D
MAXINDEP
TWEEKIT
DSU # UP 2D
## Page 882
SIGN GOTO
DELDEP
NEWDELTA
MINCHECK DLOAD DSU
MININDEP
INDEP
DSU BOV
DELINDEP
XEEDLLMT
BPL DLOAD
XEEDLLMT
DELINDEP
RVQ
XEEDULMT DLOAD DSU
MAXINDEP
INDEP
STORE DELINDEP
RVQ
XEEDLLMT DLOAD DSU
MININDEP
INDEP
STORE DELINDEP
RVQ
## Page 883
# ASSUMES 32D=R (+7), 34D=P (+2), TAG5 (+/-), 18D=COGA (+5), UNR1 (+1), R2
# VEC (+7) AVAILABLE.
INITV DLOAD NORM
32D
X1
PDDL SR1 # R1 (+7-N1) PL AT 2D
34D
DDV # P/R1 (-4+N1) PL AT 0D
BOFF DMP
MOONSW
OUTSIDE
MU
SL* GOTO
0 -12D,1
MAGVTAN
OUTSIDE SL*
0 -6,1
MAGVTAN SQRT PDVL # V SIN(GAMMA) (+1) PL AT 2D
UNR1
VXSC PDVL # 2D=COGA UNR1 (+6) PL AT 8D
18D
UNNORM
VXV VSR4 # UNVTAN (+6)
UNR1
VAD VXSC # PL AT 2D,0D
VXSC VSL7
VFACT # SCALE FOR ASCENT STEERING AT +7
STORE V0VEC
RVQ
# RETURNS WITH VELOCITY IN MPAC AND IN V0VEC SCALED (+1)
## Page 884
D1/1024 2DEC .5 B-9
D1/64 2DEC .5 B-5
D1/32 2DEC .5 B-4
D1/4 2DEC .5 B-1
D1/2 2DEC .5
## The following line is "NEARZERO 2OCT B0" in the original program listing, but the yaYUL
## assembler does not syntactically support a bare exponent like "B0" in the operand,
## so it has been replaced by a numerical equivalent that the assembler does support.
NEARZERO 2OCT 1
NEARI 2OCT 3777737777
BIGNO 2OCT 3775737777
PERCENT 2DEC E-3
LN2/128 2DEC .693147181 B-7
ROOTMU 2DEC 9.0249769 B-4
MU 2DEC .0122774395 B+6
ABSOLMIN 2DEC -.999511590
VFACT 2DEC .761606218
TFACT EQUALS VFACT
DEPCRIT 2DEC .000000012
COGAMN EQUALS 22D # TEMP PATCH BY COVELLI ******************
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