_  __   _  _         _ _     _      _           _           
  __| |/ /_ | || |     __| (_)___| | __ (_)_ __   __| | _____  __
 / _` | '_ \| || |_   / _` | / __| |/ / | | '_ \ / _` |/ _ \ \/ /
| (_| | (_) |__   _| | (_| | \__ \   <  | | | | | (_| |  __/>  < 
 \__,_|\___/   |_|    \__,_|_|___/_|\_\ |_|_| |_|\__,_|\___/_/\_\
                                                                 
            

1520 SPIROGRAPH

FILE INFORMATION

FILENAME(S): 1520 SPIROGRAPH

FILE TYPE(S): PRG

FILE SIZE: 2.6K

FIRST SEEN: 2025-10-20 14:29:56

APPEARS ON: 1 disk(s)

FILE HASH

f50b33da571524930dd6301eff3eaf3bcb452fd6e4221b9de51cf06831c29b36

FOUND ON DISKS (1 DISKS)

DISK TITLE FILENAME FILE TYPE COLLECTION TRACK SECTOR ACTIONS
PB DOMAIN 0054GR 1520 SPIROGRAPH PRG Treasure Chest - Klaus Der Suhler 30 11 DOWNLOAD FILE

FILE CONTENT & ANALYSIS

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00000050: 2D 2D 2D 2D 2D 2D 2D 2D  2D 2D 2D 2D 2D 2D 2D 00  |---------------.|
00000060: 7A 1C 1E 00 8F 20 50 52  4F 47 52 41 4D 20 3A 20  |z.... PROGRAM : |
00000070: 53 50 49 52 4F 47 52 41  50 48 00 A7 1C 28 00 8F  |SPIROGRAPH...(..|
00000080: 20 41 55 54 48 4F 52 20  20 3A 20 4E 45 44 20 4D  | AUTHOR  : NED M|
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00000100: 54 48 45 00 2A 1D 46 00  8F 20 20 20 20 20 20 20  |THE.*.F..       |
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000009C0: 30 2C 2E 34 2C 2E 31 2C  2E 31 00 EC 25 F8 02 83  |0,.4,.1,.1..%...|
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00000A10: 83 20 31 37 31 2C 31 34  2E 32 35 2C 34 32 2E 37  |. 171,14.25,42.7|
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00000A30: 32 00 00 00                                       |2...            |
......DE.0 : AN.0._.... ----------------
----------------------------------------
---------------.Z.... PROGRAM : SPIROGRA
PH...(.. AUTHOR  : NED MAZERALL & DENNIS
 BAYOMI.U.2..           IBM PC USER GROU
P OF WINNIPEG...<.. PURPOSE : TO DRAW SP
IROGRAPHS USING THE.*.F..           HYCY
CLOIDAL EQUATIONS..L.P.. BASIC 8 : MARK 
SELF 9/21/87...Z.. ---------------------
----------------------------------------
---------...D.. G(147)...N.. "RUN DEMO (
Y/N)             : ";DE$ : . DE$ . "Y" .
 700 : AN.1...X.. "RADIUS OF FIXED CIRCL
E     : ";R1.=.... "RADIUS OF ROLLING CI
RCLE   : ";R2.F.... "RADIUS OF TRACING P
OINT    : ";TR...... "TRACING POINT INCR
EMENT    : ";IT... .. "INITIAL SIZE FACT
OR        : ";C...... "FINAL SIZE FACTOR
          : ";EX...... "PHASE INCREMENT 
(ABOUT .1) : ";PF.2.... "SIZE FACTOR INC
REMENT      : ";I1.[.H.. "PARAMETER (T) 
INCREMENT    : ";I2...R.. "SOUND EFFECTS
 (Y/N)        : ";AN$...... AN$ . "Y" . 
260...... AN$ . "N" . AN . 1 : . 310....
.. AN$ .. "Y" . AN$ .. "N" . 210.- ...--
----------------------------------------
-----------------------------.Y ..F1 . 5
000 : F2 . F1.1000 : F3 . F1.2000.O ..M1
 . (F1.(X1.10)).. ..M2 . (F2.(X1.10)).. 
".M3 . (F3.(X1.10)).. ,..---------------
----------------------------------------
----------------..!6.PI. 3.141593   : . 
610..!@..1,6,1:.4,6.(!J..1,"M",0,.300:.4
.W!T.G . (R1.R2).R2 : M . R1.R2  : . EPI
CYCLOID..!^.H . (R1.R2).R2 : N . R1.R2  
: . HYPOCYCLOID..!H.. J.1 . EX . I1..!R.
F . F . PF  : T . 0..!|.X . 240.6.J.C.(N
..(T.F).TR..(H.T.F)).."..Y . 240.6.J.C.(
N..(T.F).TR..(H.T.F)).."...1,"M",X,Y./".
.. T.0 . 2.D.PI..1 . I2.Y"..X1 . 240.6.J
.C.(N..(T.F).TR..(H.T.F)).."..Y1 . 240.6
.J.C.(N..(T.F).TR..(H.T.F)).."... Y1 . 1
 . 550.."B.. X1 . 1 . 550.K"L..1,"D",X1,
Y1 : . AN . 0 . 500.."V.Z 1,F1.(X1.10),5
,2,M1,Y1,0..#..Z 2,F2.(X1.10),10,2,M2,Y1
,0.*#..Z 3,F3.(X1.10),15,2,M3,Y1,0.>#..X
 . X1 : Y . Y1.D#....U#..TR . TR . IT.D#
... : . G(7)..#... "PRESS SPACEBAR TO CO
NTINUE"..#&.. A$ : . A$ . ""  . 550..#0.
. A$ .. G(32) . 550.M#:..1,"M",0,.240.T#
D..4..#N..1: 1:.4: 4:. 100..#X....$B.. *
** LEAST COMMON MULTIPLE (LCM).?$L.. 640
 : LCM . R1.R2.GCD : D . LCM.R1.E$V...M$
... *** GREATEST COMMON DIVISOR (GCD)..$
..X . R1 : Y . R2..$..R . X..(X.Y).Y : .
 R .. 0 . X.Y : Y.R : . 660..$..GCD . Y.
E$.....%... ----------------------------
------------------------------------.,%.
.. R1,R2,TR,IT,C,EX,PF,I1,I2.\%F.DE . DE
 . 1 : . DE . 5 . DE . 0 : . : . 110.F%P
.. 310..%Z.. 96,24,60,-3,12,4,.2,.1,.2..
%... 39,26,52,-1.5,5,3.5,.2,.1,.2.J%... 
80,40,40,-4,10,10,.4,.1,.1..%... 49,28,5
6,-3,12,4.8,.2,.1,.1..&... 64,24,56,-3,6
,2,.1,.1,.2.1&... 171,14.25,42.75,-8,6,1
,.2,.1,.2...
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