CADV2.DOC
FILE INFORMATION
FILENAME(S): CADV2.DOC
FILE TYPE(S): SEQ
FILE SIZE: 13K
FIRST SEEN: 2025-10-19 22:48:41
APPEARS ON: 1 disk(s)
FILE HASH
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FOUND ON DISKS (1 DISKS)
| DISK TITLE | FILENAME | FILE TYPE | COLLECTION | TRACK | SECTOR | ACTIONS |
|---|---|---|---|---|---|---|
| C A D PART 1 2 | CADV2.DOC | SEQ | Radd Maxx | 27 | 0 | DOWNLOAD FILE |
FILE CONTENT & ANALYSIS
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00002E50: 45 20 C3 C1 C4 20 53 59 53 54 45 4D 20 41 4E 44 |E ... SYSTEM AND|
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00003020: 2E 20 D9 4F 55 52 0D 20 20 20 20 20 53 43 52 45 |. .OUR. SCRE|
00003030: 45 4E 20 57 49 4C 4C 20 42 45 20 49 4E 54 41 43 |EN WILL BE INTAC|
00003040: 54 20 49 46 20 59 4F 55 20 44 49 44 20 4E 4F 54 |T IF YOU DID NOT|
00003050: 20 54 55 52 4E 20 4F 46 46 20 54 48 45 20 43 4F | TURN OFF THE CO|
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000033B0: 45 20 44 45 46 41 55 4C 54 20 43 4F 4C 4F 52 53 |E DEFAULT COLORS|
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000033E0: 42 4F 4F 54 27 20 50 52 4F 47 52 41 4D 2E 20 D4 |BOOT' PROGRAM. .|
000033F0: 48 45 20 4C 49 4E 45 20 49 53 0D 52 45 4D 27 44 |HE LINE IS.REM'D|
00003400: 2E 0D |.. |
.
CADV2.DOC...DOCUMENT
ATION FOR THE CAD SYSTEM V2.0.BY STEPHEN
NYE.70366,1316...THE CAD SYSTEM WAS WRI
TTEN TO DO ELECTRONIC SCHEMATICS AND OTH
ER LINE DRAWINGS.ON THE COMMODORE 64. IT
IS BASED ON A PACKAGE OF USR CALLS (USE
RML) FOUND ON.THE COMMODORE SIG...TO OBT
AIN A WORKING COPY OF THE PROGRAM PACKAG
E FOLLOW THESE INSTRUCTIONS...1. DOWNLOA
D 'LIB32.BIN'..2. ON A FRESH DISK DOWNLO
AD 'CADV2.LIB'..3. WHEN OFFLINE 'LOAD' L
IB32.BIN..4. PLACE THE DISK CONTAINING C
AD INTO THE DRIVE AND RUN THE LIBRARY PR
OGRAM...THE LIBRARY PROGRAM WILL CREATE
A PACKAGE OF APPROXIMATELY 50 BASIC AND
ML.PROGRAMS ON THE DISK...NOTE: 'CAD.LIB
' WILL NOT RUN AS IS...IT MUST BE SEPARA
TED USING LIB32.BIN....TO USE THE CAD "L
OAD 'BOOT',8" AND "RUN"...NOTE: THE CAD
SYSTEM IS VERY DISK INTENSIVE. IT IS CON
TINUOUSLY ACCESSING NEW.INFORMATION ON T
HE DISK DRIVE. FOR THIS REASON IT IS VER
Y IMPORTANT NOT TO.REMOVE THE DISK FROM
THE DRIVE UNLESS PROMPTED BY THE PROGRAM
TO DO SO...THE BOOT PROGRAM WILL PROMPT
YOU FOR 'ERASE PRESENT SCREEN'. FOR THE
PRESENT.ANSWER 'Y' TO THIS PROMPT...NOT
E: DO NOT FOLLOW COMMANDS TO CAD WITH A
CARRIAGE RETURN. ALMOST ALL INPUT.(EXCEP
T FILE NAMES) IS SINGLE KEYSTROKE...THE
CAD SYSTEM USES A JOYSTICK PLUGGED INTO
PORT 2 OF THE COMPUTER. THE.JOYSTICK IS
USED TO MOVE A CROSSHAIRS AROUND THE HIR
ES SCREEN AND MARK CERTAIN.POINTS FOR TH
E DRAWING ROUTINES...AFTER A SHORT TIME
THE MAIN MENU WILL APPEAR ON THE SCREEN.
THE SYSTEM IS.DESIGNED SO THAT NO MATTE
R WHERE YOU ARE IN THE SYSTEM A SERIES O
F CARRIAGE.RETURNS (C /R) WILL RETURN YO
U TO THIS MENU. WHEN IN DOUBT AS TO WHAT
TO DO.JUST PRESS THE RETURN...THE SYSTE
M RESPONDS TO SINGLE KEY COMMANDS. WHEN
CHOOSING A FUNCTION JUST PRESS.THE KEY A
SSOCIATED WITH THAT FUNCTION. IF YOU FOL
LOW THAT KEY WITH A RETURN YOU.WILL END
UP AT THE MENU AGAIN. FOR OUR EXAMPLE WE
WILL USE THE 'B'OX ROUTINE..AT THE MENU
PRESS 'B'...WHEN YOU PRESS 'B' THE SYST
EM WILL ACCESS THE DRIVE FOR A SHORT TIM
E AND SOON A.CROSSHAIRS WILL APPEAR ON T
HE SCREEN. YOU ARE NOW IN THE BOX DRAWIN
G MODE. TO.DRAW A BOX ON THE SCREEN MOVE
THE CROSSHAIRS TO THE POINT WHERE ONE C
ORNER OF.THE BOX WILL BE AND PRESS THE F
IREBUTTON. A SMALL CROSS WILL APPEAR TO
MARK.THAT POINT. NOW MOVE THE CROSSHAIRS
TO THE POINT THAT WILL BE THE DIAGONALL
Y.OPPOSITE CORNER OF THE BOX AND PRESS T
HE FIREBUTTON AGAIN. THE SYSTEM WILL NOW
.DRAW A BOX IN THAT POSITION. YOU WILL R
EMAIN IN THE BOX DRAWING MODE UNTIL YOU.
CHOOSE ANOTHER FUNCTION BY PRESSING A KE
Y. IF YOU ARE IN DOUBT AS TO WHICH KEY.T
O PRESS USE THE CARRIAGE RETURN, WHICH W
ILL TAKE YOU TO THE MENU...FROM WITHIN T
HE BOX PROGRAM (OR MOST OTHER PROGRAMS)
YOU MAY ADJUST THE SPEED.WITH WHICH THE
CURSOR MOVES ACROSS THE SCREEN. PRESSING
A NUMBER KEY (1 TO 9).WILL CHANGE THE S
PEED. NOTE THAT THE NUMBER PRESSED IS TH
E NUMBER OF DOTS THAT.THE CURSOR SKIPS.
FOR EXACT POSITIONING OF THE CROSSHAIRS
USE '1'. THE SYSTEM.DEFAULTS TO 6...WHIL
E OTHER FUNCTIONS (CIRCLE, LINE, RAY, ET
C) DRAW DIFFERENT OBJECTS THAN 'B'.THEY
ALL WORK APPROXIMATELY THE SAME. USE THE
FIREBUTTON TO MARK THE POINTS.FOR THE O
BJECT AND THE SYSTEM WILL AUTOMATICALLY
DRAW THAT OBJECT. IN CERTAIN.ROUTINES (R
AYS, FOR INSTANCE) THE FIRST MARK REMAIN
S AFTER THE LINE IS DRAWN.AND IS USED AS
THE STARTING POINT FOR SUBSEQUENT LINES
. TO MOVE THE FIRST.MARKER PLACE THE CRO
SSHAIRS ON THE MARKER AND PRESS THE FIRE
BUTTON. THIS WILL.FREE THE FIRST MARKER
SO YOU CAN MOVE IT TO A NEW LOCATION...W
HILE MOST OF THE ROUTINES WORK MUCH LIKE
'B' AND THE MENUS ARE FAIRLY STRAIGHT.F
ORWARD THERE ARE CERTAIN FUNCTIONS THAT
ARE NOT AS OBVIOUS:..1. IN THE CIRCLE PR
OGRAMS YOU MAY TOGGLE ON A CENTER MARKER
BY PRESSING '+'..THIS WILL DRAW A SMALL
CROSS ON THE SCREEN AT THE CENTER OF TH
E CIRCLE. I.FOUND IT USEFUL WHEN DRAWING
MACHINE DRAWINGS WHERE CENTER LINES ARE
USED...2. IN THE FIGURE PROGRAM (EXPLAI
NED FULLY LATER) YOU MAY ERASE A RECTANG
ULAR.AREA OF THE SCREEN BY USING THE FIR
EBUTTON IN THE SAME WAY AS IN THE 'B'OX
PRG...3. IN THE FIGURE ROUTINE PRESSING
THE SPACE BAR WILL REDRAW THE LAST FIGUR
E.DRAWN. IN THIS WAY YOU MAY DRAW A FIGU
RE IN MORE THAN ONE LOCATION WITHOUT.REL
OADING IT EVERY TIME...THE FIGURE PROGRA
M IS USED TO PLACE PRE-DRAWN FIGURES ON
THE SCREEN. TO USE IT.YOU MUST HAVE A FI
LE DISK CONTAINING FIGURES PREPARED BEFO
REHAND. FILES.CONTAINING APPROXIMATELY F
IFTY ELECTRONIC SYMBOLS AND A 5 BY 5 CHA
RACTER SET.HAVE BEEN UP LOADED. DOWNLOAD
THESE FILES ON SEPARATE DISKS AND SEPAR
ATE THEM.AS YOU DID WITH THE CAD SYSTEM.
..TO USE THE FIGURE PROGRAM CHOOSE 'F' F
ROM THE MENU (A COMMAND KEY CAN BE.PRESS
ED FROM WITHIN ANY DRAW MODE). THE SYSTE
M WILL AGAIN ACCESS THE DISK DRIVE.AND Y
OU WILL BE PROMPTED WHEN TO PLACE THE FI
LE DISK IN THE DRIVE (FOR NOW WE.WILL US
E THE ELECTRONIC FIGURES). WHEN THE CROS
SHAIRS REAPPEAR ON THE SCREEN.MOVE THEM
TO THE PLACE YOU WISH TO DRAW THE FIGURE
AND PRESS THE KEY ASSOCIATED.WITH THAT
FIGURE. PRESSING A LOWER CASE 'A' WILL D
RAW A RESISTOR. THE.ELECTRONIC FILES CON
TAIN FIGURES FOR THE LOWER CASE 'A' TO '
Z' AND UPPER CASE.'A' TO 'X'. PRESSING T
HE BRITISH POUND SIGN WILL ROTATE THE CR
OSSHAIRS 90.DEGREES AT A TIME (THE DIREC
TION IN WHICH THE FIGURE IS DRAWN WILL C
HANGE AT.THE SAME TIME). TO EXIT THE FIG
URE PROGRAM PRESS A RETURN. YOU WILL BE.
PROMPTED TO RETURN THE PROGRAM DISK TO T
HE DRIVE AND PRESS A KEY. IF YOU ARE.UNS
URE WHICH KEY YOU WANT NEXT PRESS RETURN
AGAIN AND YOU'LL GET THE MENU...FIGURES
TO BE USED WITH THE 'F' PROGRAM CAN BE
DRAWN USING THE 'FIGURE DRAW'.PROGRAM. T
HIS IS A STAND ALONE PROGRAM THAT USES T
HE JOYSTICK TO MOVE THE.CURSOR. EACH SPA
CE ON THE SCREEN WILL BE ONE POINT ON TH
E HIRES SCREEN WHEN.THE FIGURE IS DRAWN.
TO TURN ON A POINT MOVE THE FLASHING CU
RSOR TO THE POINT.AND PRESS THE FIREBUTT
ON. TO ERASE A POINT MOVE TO THAT POINT
AND PRESS THE.DELETE KEY. TO LOAD A FILE
TO MODIFY IT PRESS F7. TO SAVE YOUR FIG
URE TO DISK.USE F8. MAKE SURE THE KEY YO
U USE FOR A FILENAME IS NOT ALREADY USED
OR THE OLD.FILE WILL BE REPLACED ...THE
FOLLOWING IS A BRIEF DESCRIPTION OF EAC
H ROUTINE:..A-MARK A POINT AT THE BEGINN
ING AND END OF THE ARC. THE PROGRAM WILL
DRAW A.QUARTER CIRCLE COUNTER-CLOCKWISE
FROM THE FIRST TO THE SECOND. NOTE THAT
ALL.ARCS START AND END ON A MAJOR AXIS
(0,90,180,270 DEGREES)..A-MARK THE BEGIN
NING AND END OF THE BROKEN LINE. NOTE TH
AT ALL BROKEN LINES.MUST BE EITHER HORIZ
ONTAL OR VERTICAL...B-MARK DIAGONALLY OP
POSITE CORNERS OF THE RECTANGLE...B-DRAW
S A SOLID RECTANGLE AS IN 'B'...C-MARK T
WO POINTS ON THE CIRCUMFERENCE OF THE CI
RCLE. THESE POINTS MUST BE.DIAGONALLY OP
POSITE EACH OTHER (ON A DIAMETER LINE)..
.C-THE FIRST POINT MARKED WILL BE THE CE
NTER OF THE CIRCLE. THE SECOND WILL.DETE
RMINE THE RADIUS...D-DRAWS A SOLID CIRCL
E AS IN 'C'...D-ERASES A CIRCULAR AREA A
S IN 'C'...E-TWO POINTS MARK THE BEGINNI
NG AND END OF THE ERASED LINE...E-TWO PO
INTS MARK THE DIAGONALLY OPPOSITE CORNER
S OF THE ERASED RECTANGLE AS IN.'B'...F-
THE FIGURE ROUTINE EXPLAINED ABOVE...F-A
FREEHAND DRAWING PROGRAM. HOLDING THE F
IREBUTTON AS THE CROSSHAIRS ARE.MOVED WI
LL DRAW WHEREVER THE CROSSHAIRS ARE LOCA
TED...G-DRAWS A GRIDWORK ON THE HIRES SC
REEN. NOTICE THAT A GRID OVERLAYED ON TH
E.WORKING SCREEN CANNOT BE REMOVED. HOWE
VER, BY DRAWING THE GRID ON THE SECOND.S
CREEN YOU CAN ADD THE TWO SCREENS ('&'),
LOCATE THE CROSSHAIRS WHERE YOU WANT.TH
EM, AND THEN REMOVE THE GRID WITH 'DEL'.
BE CAREFUL...IF YOU PRESS THE.FIREBUTTO
N BEFORE DELETING THE GRID IT WILL BECOM
E A PERMANENT PART OF THE.DRAWING...H-WI
LL DRAW A SIX SIDED FIGURE. THE FIRST PO
INT MARKS THE BEGINNING AND.VERTICAL CEN
TER OF THE FIGURE. THE SECOND POINT MARK
S THE SECOND SIDE OF THE.FIGURE (THE Y L
OCATION OF THE SECOND POINT IS IGNORED).
..I-WILL PRINT A RULER SYSTEM ON THE LEF
T AND BOTTOM SIDES OF THE SCREENS...I-WI
LL ERASE THE RULER SYSTEM...J-WILL DRAW
A RECTI-LINEAR LINE SYSTEM (SEE 'R'). TH
E FIRST POINT WILL REMAIN.AND THE SECOND
POINT MARKS THE END OF CONSECUTIVE LINE
PLOTS. I USE THIS.PROGRAM TO DRAW THE F
ANOUT FOR DIGITAL CHIPS ON SCHEMATICS...
J-WILL OPERATE MUCH LIKE 'J' BUT IN THE
HORIZONTAL DIRECTION. (FOR PLACING THE.F
ANOUT ON THE TOP OR BOTTOM OF AN IC DRAW
ING)...K-THE FIRST POINT MARKS THE HORIZ
ONTAL AXIS AND BEGINNING OF THE ELLIPSE.
(ACTUALLY A SCALED CIRCLE). THE SECOND P
OINT WILL MARK THE WIDTH OF THE.ELLIPSE
AND THE THIRD WILL MARK THE HEIGHT...K-T
HE FIRST TWO POINTS SHOULD BE DRAWN ON T
HE LINE YOU WISH TO DRAW PARALLEL.TO. TH
ESE TWO MARKS WILL REMAIN ON SCREEN AS Y
OU DRAW. FROM THIS POINT ON THE.PROGRAM
WILL DRAW LINES AS IN 'L' THAT ARE ALL P
ARALLEL TO THE MARKED LINE..USEFUL WHEN
A LINE MUST BE EXTENDED FROM THE WORKING
SCREEN ONTO THE SECOND.SCREEN. MARK THE
LINE ON THE WORKING SCREEN, PRESS '!' T
O SWITCH THE SCREENS,.AND DRAW A LINE WH
ERE YOU WANT IT...L-THE TWO POINTS MARK
THE BEGINNING AND END OF THE LINE SEGMEN
T TO BE DRAWN...L-THE TWO POINTS MARK TH
E BEGINNING AND END AS IN 'L'. WHEN A LI
NE SEGMENT IS.DRAWN THE BEGINNING MARKER
IS AUTOMATICALLY MOVED TO THE END OF TH
E SEGMENT...P-THREE POINTS MARK THREE OF
THE FOUR CORNERS OF THE PARALLELOGRAM.
THE FOURTH.POINT IS AUTOMATICALLY PLOTTE
D AND THE FIGURE DRAWN. NOTE THAT THIS R
OUTINE.WILL NOT ACCEPT A FIGURE WITH THE
FOURTH POINT OFF THE SCREEN...P-WHEN YO
U PRESS THE FIREBUTTON THE PROGRAM WILL
PROMPT YOU FOR THE LENGTH OF.THE LINE AN
D THE ANGLE (IN DEGREES) YOU WISH TO DRA
W AT. NOTE THAT THIS.PROGRAM WILL NOT TA
KE A LINE THAT EXTENDS OFF THE SCREEN...
Q-WILL EXIT CAD AND RESET THE COMPUTER..
.R-TWO POINTS MARK THE BEGINNING AND END
OF THE LINE. THE PROGRAM WILL DRAW A.HO
RIZONTAL LINE FROM THE FIRST POINT TO TH
E X POSITION OF THE SECOND AND THEN.A VE
RTICAL LINE TO THE SECOND POINT...R-TWO
POINTS MARK THE BEGINNING AND END OF THE
LINE SEGMENT. AFTER THE SEGMENT.IS DRAW
N THE FIRST POINT REMAINS MARKED AND ALL
SUBSEQUENT LINE SEGMENTS ARE.DRAWN FROM
THIS POINT. NOTE THAT YOU MAY RELOCATE
THE FIRST POINT BY MOVING.THE CROSSHAIRS
TO THE FIRST MARKER AND PRESSING THE FI
REBUTTON AGAIN...S-THE FIRST POINT MARKS
THE BEGINNING OF THE LINE SEGMENT. THE
SECOND MARKS THE.END. NOTICE THAT THE PR
OGRAM WILL DRAW THESE LINES ONLY HORIZON
TALLY OR.VERTICALLY, IGNORING ONE OF THE
SECOND XY VALUES. THE PROGRAM AUTOMATIC
ALLY.ASSUMES YOU WISH THE LONGER OF THE
TWO POSSIBLE LINES...W-TAKES YOU TO A WA
VEFORM MENU. THE WAVEFORMS ARE ALL DRAWN
IN THE SAME MANNER..ONE CYCLE OF THE WA
VEFORM WILL BE DRAWN. THE FIRST POINT MA
RKS THE HORIZONTAL.AXIS OF THE FIGURE AN
D THE BEGINNING OF THE CYCLE. THE SECOND
MARKS THE END OF.THE CYCLE, THE AMPLITU
DE OF THE CYCLE, AND WHETHER THE NEGATIV
E OR POSITIVE.HALF WILL BE DRAWN FIRST..
.X-MARK A RECTANGULAR AREA AS IN 'B'. TH
E PROGRAM WILL CROSSHATCH THIS AREA.USIN
G THE VALUES YOU SUPPLY...Y-WILL PLACE A
SMALL REFERENCE MARK ON THE SECOND SCRE
EN IN THE VERTICAL.LOCATION OF THE CROSS
HAIRS...Y-WILL PLACE A SMALL REFERENCE M
ARK ON THE SECOND SCREEN IN THE HORIZONT
AL.LOCATION OF THE CROSSHAIRS...Z-WILL D
RAW A BORDER AROUND THE SCREENS...Z-WILL
ERASE A BORDER DRAWN AROUND THE SCREENS
....!-WILL SWITCH THE WORKING AND SECOND
SCREENS...#-WILL INVERT THE WORKING SCR
EEN (MAKE ALL ON DOTS OFF AND ALL OFF DO
TS ON)...&-WILL ADD SCREEN 2 TO THE WORK
ING SCREEN...=-WILL COPY THE WORKING SCR
EEN TO THE SECOND SCREEN....COMMODORE KE
YS:..C-WILL ALLOW YOU TO CHANGE THE COLO
RS FROM WITHIN THE PROGRAM...D-WILL ALLO
W YOU TO ACCESS THE DISK COMMANDS FROM W
ITHIN THE PROGRAM...P-WILL PRINT A SINGL
E DENSITY COPY OF THE WORKING SCREEN...B
-WILL PRINT A LINKED SINGLE DENSITY COPY
OF BOTH SCREENS...L-WILL LOAD A DOODLE
COMPATIBLE FILE AS THE WORKING SCREEN...
S-WILL SAVE THE WORKING SCREEN AS A DOOD
LE COMPATIBLE FILE...R-WILL LOAD AN 8K H
IRES FILE AS THE WORKING SCREEN...W-WILL
SAVE THE WORKING SCREEN AS AN 8K HIRES
FILE....FUNCTION KEYS:..F2-WILL PRINT A
DOUBLE DENSITY COPY OF THE WORKING SCREE
N...F4 WILL PRINT A LINKED DOUBLE DENSIT
Y COPY OF BOTH SCREENS......NOTES:..1. F
ILES DRAWN BY THE CAD SYSTEM AND SAVED U
SING COMMODORE 'S' ARE COMPATIBLE.WITH D
OODLE FILES. BE SURE TO PREFACE THE FILE
NAME WITH 'DD' TO BE ABLE TO.ACCESS IT F
ROM DOODLE...2. IN CASE OF A SYSTEM CRAS
H FOLLOW THESE STEPS:.. A. PRESS RUN/ST
OP-RESTORE.. B. CAREFULLY TYPE 'SYS6473
8'. YOU WILL NOT BE ABLE TO SEE THE CHAR
ACTERS AS. YOU TYPE...THE HIRES SCRE
EN IS STILL ENABLED.. C. LOAD AND RUN T
HE 'BOOT'.. D. WHEN PROMPTED TO ERASE T
HE SCREEN TYPE 'N' (OR ANYTHING BUT 'Y')
. YOUR. SCREEN WILL BE INTACT IF YOU
DID NOT TURN OFF THE COMPUTER...3. THER
E ARE TWO WORKING SCREENS IN THE SYSTEM.
SCREEN 1 IS THE SCREEN YOU SEE.AND PRES
SING '!' WILL SWAP IT WITH SCREEN 2. YOU
MUST SWAP SCREENS TO DRAW ON.SCREEN 2.
ALL PLOTTING IS DONE ON THE WORKING SCRE
EN (THE VISIBLE SCREEN)...4. THE PRINT R
OUTINES ARE WRITTEN FOR A STAR SG-10 PRI
NTER. THE INDICATORS.(RULERS) ACCESSED B
Y 'I' ARE SCALED FOR THIS PRINTER. (60 D
OTS PER INCH.HORIZONTAL AND 72 DOTS PER
INCH VERTICAL)...5. THE LINKED PRINTOUT
PROGRAMS WILL PRINT BOTH SCREENS. THE VI
SIBLE SCREEN.WILL BE PRINTED AT THE TOP
OF THE PRINTOUT (RIGHT SIDE OF THE PAGE)
AND THE.SECOND SCREEN WILL BE LINKED TO
IT. BY LOADING A SECOND SET OF SCREENS
WITHOUT.MOVING THE PAPER THE SECOND SET
WILL BE DRAWN ADJACENT TO THE FIRST. THI
S.ALLOWS YOU TO CREATE A DRAWING THAT IS
APPROXIMATELY 7 INCHES HIGH AND AS WIDE
.AS THE PAPER WILL ALLOW...6. THE DEFAUL
T COLORS CAN BE CHANGED BY LISTING THE '
BOOT' PROGRAM. THE LINE IS.REM'D..
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