Home » Archimedes archive » Acorn User » AU 1994-08.adf » !StarInfo_StarInfo » VanMourik/Whirl
VanMourik/Whirl
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1994-08.adf » !StarInfo_StarInfo |
| Filename: | VanMourik/Whirl |
| Read OK: | ✔ |
| File size: | 030D bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
10REM >Whirl 20REM (C) JEAN VAN MOURIK MILLCOTTAGE DERWYDD AMMANFORD DYFED SA183LQ UK. 94 30 40F=444^2 50PROCMODE 60A%=640 70B%=512 80ORIGIN A%,B% 90OFF 100C%=2 110IF B_%=0 C%=4 120FOR X=0 TO 15 130 READ C,D,E 140 COLOUR X,C,D,E 150NEXT 160 170REM MAIN LOOP 180FOR X%=-A%+1 TO 0 STEP 2 190 D%=X%*X% 200 FOR Y%=-B% TO B% STEP C% 210 A=F/(D%+Y%*Y%) 220 P%=ABS(X%*COSA+Y%*SINA)*A 230 Q%=(P%DIV33) 240 GCOL Q% MOD 15+1 250 POINT X%,Y% 260 POINT -X%,-Y% 270 NEXT 280NEXT 290END 300 310REM SUITABLE MODE DETECTION ROUTINE 320DEF PROCMODE 330LOCAL C%,F% 340SYS 63,20 TO;F% 350C%=(F%AND%0010)>>1 360IF NOT (C%=1) MODE 20:B_%=1 ELSE MODE 12:B_%=0 370OFF 380ENDPROC 390 400REM R,G,B VALUES TO DEFINE THE PALETTE 410DATA 0,0,0,192,0,240,144,48,240,96,96,240,48,144,240,0,192,240,0,240,192,48,240,144,96,240,96,144,240,48,192,240,0,240,192,0,240,144,48,240,96,96,240,48,144,240,0,192
� >Whirl M� (C) JEAN VAN MOURIK MILLCOTTAGE DERWYDD AMMANFORD DYFED SA183LQ UK. 94 ( F=444^2 2 �MODE < A%=640 F B%=512 P ȑ A%,B% Z� dC%=2 n� B_%=0 C%=4 x� X=0 � 15 � � C,D,E � � X,C,D,E �� � �� MAIN LOOP �� X%=-A%+1 � 0 � 2 � D%=X%*X% � � Y%=-B% � B% � C% � A=F/(D%+Y%*Y%) � P%=�(X%*�A+Y%*�A)*A � Q%=(P%�33) � � Q% � 15+1 � Ȓ X%,Y% Ȓ -X%,-Y% � � "� , 6%� SUITABLE MODE DETECTION ROUTINE @ � �MODE J � C%,F% Tș 63,20 �;F% ^C%=(F%�%0010)>>1 h&� � (C%=1) � 20:B_%=1 � � 12:B_%=0 r� |� � �(� R,G,B VALUES TO DEFINE THE PALETTE ��� 0,0,0,192,0,240,144,48,240,96,96,240,48,144,240,0,192,240,0,240,192,48,240,144,96,240,96,144,240,48,192,240,0,240,192,0,240,144,48,240,96,96,240,48,144,240,0,192 �
00000000 0d 00 0a 0c f4 20 3e 57 68 69 72 6c 0d 00 14 4d |..... >Whirl...M| 00000010 f4 20 28 43 29 20 4a 45 41 4e 20 56 41 4e 20 4d |. (C) JEAN VAN M| 00000020 4f 55 52 49 4b 20 4d 49 4c 4c 43 4f 54 54 41 47 |OURIK MILLCOTTAG| 00000030 45 20 44 45 52 57 59 44 44 20 41 4d 4d 41 4e 46 |E DERWYDD AMMANF| 00000040 4f 52 44 20 44 59 46 45 44 20 53 41 31 38 33 4c |ORD DYFED SA183L| 00000050 51 20 20 55 4b 2e 20 39 34 0d 00 1e 04 0d 00 28 |Q UK. 94......(| 00000060 0b 46 3d 34 34 34 5e 32 0d 00 32 09 f2 4d 4f 44 |.F=444^2..2..MOD| 00000070 45 0d 00 3c 0a 41 25 3d 36 34 30 0d 00 46 0a 42 |E..<.A%=640..F.B| 00000080 25 3d 35 31 32 0d 00 50 0c c8 91 20 41 25 2c 42 |%=512..P... A%,B| 00000090 25 0d 00 5a 05 87 0d 00 64 08 43 25 3d 32 0d 00 |%..Z....d.C%=2..| 000000a0 6e 10 e7 20 42 5f 25 3d 30 20 43 25 3d 34 0d 00 |n.. B_%=0 C%=4..| 000000b0 78 0e e3 20 58 3d 30 20 b8 20 31 35 0d 00 82 0c |x.. X=0 . 15....| 000000c0 20 f3 20 43 2c 44 2c 45 0d 00 8c 0e 20 fb 20 58 | . C,D,E.... . X| 000000d0 2c 43 2c 44 2c 45 0d 00 96 05 ed 0d 00 a0 04 0d |,C,D,E..........| 000000e0 00 aa 0f f4 20 4d 41 49 4e 20 4c 4f 4f 50 0d 00 |.... MAIN LOOP..| 000000f0 b4 16 e3 20 58 25 3d 2d 41 25 2b 31 20 b8 20 30 |... X%=-A%+1 . 0| 00000100 20 88 20 32 0d 00 be 0d 20 44 25 3d 58 25 2a 58 | . 2.... D%=X%*X| 00000110 25 0d 00 c8 17 20 e3 20 59 25 3d 2d 42 25 20 b8 |%.... . Y%=-B% .| 00000120 20 42 25 20 88 20 43 25 0d 00 d2 14 20 20 41 3d | B% . C%.... A=| 00000130 46 2f 28 44 25 2b 59 25 2a 59 25 29 0d 00 dc 19 |F/(D%+Y%*Y%)....| 00000140 20 20 50 25 3d 94 28 58 25 2a 9b 41 2b 59 25 2a | P%=.(X%*.A+Y%*| 00000150 b5 41 29 2a 41 0d 00 e6 10 20 20 51 25 3d 28 50 |.A)*A.... Q%=(P| 00000160 25 81 33 33 29 0d 00 f0 11 20 20 e6 20 51 25 20 |%.33).... . Q% | 00000170 83 20 31 35 2b 31 0d 00 fa 0e 20 20 c8 92 20 58 |. 15+1.... .. X| 00000180 25 2c 59 25 0d 01 04 10 20 20 c8 92 20 2d 58 25 |%,Y%.... .. -X%| 00000190 2c 2d 59 25 0d 01 0e 06 20 ed 0d 01 18 05 ed 0d |,-Y%.... .......| 000001a0 01 22 05 e0 0d 01 2c 04 0d 01 36 25 f4 20 53 55 |."....,...6%. SU| 000001b0 49 54 41 42 4c 45 20 4d 4f 44 45 20 44 45 54 45 |ITABLE MODE DETE| 000001c0 43 54 49 4f 4e 20 52 4f 55 54 49 4e 45 0d 01 40 |CTION ROUTINE..@| 000001d0 0b dd 20 f2 4d 4f 44 45 0d 01 4a 0b ea 20 43 25 |.. .MODE..J.. C%| 000001e0 2c 46 25 0d 01 54 11 c8 99 20 36 33 2c 32 30 20 |,F%..T... 63,20 | 000001f0 b8 3b 46 25 0d 01 5e 14 43 25 3d 28 46 25 80 25 |.;F%..^.C%=(F%.%| 00000200 30 30 31 30 29 3e 3e 31 0d 01 68 26 e7 20 ac 20 |0010)>>1..h&. . | 00000210 28 43 25 3d 31 29 20 eb 20 32 30 3a 42 5f 25 3d |(C%=1) . 20:B_%=| 00000220 31 20 8b 20 eb 20 31 32 3a 42 5f 25 3d 30 0d 01 |1 . . 12:B_%=0..| 00000230 72 05 87 0d 01 7c 05 e1 0d 01 86 04 0d 01 90 28 |r....|.........(| 00000240 f4 20 52 2c 47 2c 42 20 56 41 4c 55 45 53 20 54 |. R,G,B VALUES T| 00000250 4f 20 44 45 46 49 4e 45 20 54 48 45 20 50 41 4c |O DEFINE THE PAL| 00000260 45 54 54 45 0d 01 9a a7 dc 20 30 2c 30 2c 30 2c |ETTE..... 0,0,0,| 00000270 31 39 32 2c 30 2c 32 34 30 2c 31 34 34 2c 34 38 |192,0,240,144,48| 00000280 2c 32 34 30 2c 39 36 2c 39 36 2c 32 34 30 2c 34 |,240,96,96,240,4| 00000290 38 2c 31 34 34 2c 32 34 30 2c 30 2c 31 39 32 2c |8,144,240,0,192,| 000002a0 32 34 30 2c 30 2c 32 34 30 2c 31 39 32 2c 34 38 |240,0,240,192,48| 000002b0 2c 32 34 30 2c 31 34 34 2c 39 36 2c 32 34 30 2c |,240,144,96,240,| 000002c0 39 36 2c 31 34 34 2c 32 34 30 2c 34 38 2c 31 39 |96,144,240,48,19| 000002d0 32 2c 32 34 30 2c 30 2c 32 34 30 2c 31 39 32 2c |2,240,0,240,192,| 000002e0 30 2c 32 34 30 2c 31 34 34 2c 34 38 2c 32 34 30 |0,240,144,48,240| 000002f0 2c 39 36 2c 39 36 2c 32 34 30 2c 34 38 2c 31 34 |,96,96,240,48,14| 00000300 34 2c 32 34 30 2c 30 2c 31 39 32 0d ff |4,240,0,192..| 0000030d
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