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dcfprogs/Graphics/Swirly/Title

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 » Personal collection » Acorn hard disk » misc » misc2
Filename: dcfprogs/Graphics/Swirly/Title
Read OK:
File size: 03B3 bytes
Load address: 0000
Exec address: 0000
Duplicates

There is 1 duplicate copy of this file in the archive:

File contents
   10 REM Swirly EUG 36
   20 REM by Dominic Ford
   30 :
   40 MODE2:HIMEM=&2C00
   50 VDU23,1,0;0;0;0;:PROCass
   60 FORr=0TO15:VDU19,r,0,0,0,0,0:NEXT
   70 *LO. Swirl2
   80 CALLswirl
   90 CHAIN"MENU"
  100 :
  110 DEFPROCass
  120 osbyte=&FFF4:osword=&FFF1
  130 FORpass=0TO2STEP2:P%=&2C00
  140 [OPTpass
  150 .swirl LDA#0:STA&80:STA&81:SEI:LDA&204:STAvector:LDA&205:STAvector+1:LDA#irq MOD 256:STA&204:LDA#irq DIV 256:STA&205:CLI
  160 .loop LDA&82:STA&83:LDA&80:CLC:ADC&81:STAdata:LDY&81:LDAcols,Y:STAdata+1:LDA#&C:LDX#data MOD 256:LDY#data DIV 256:JSRosword
  170 INC&81:LDA&81:CMP#&10:BNEloop:LDA#0:STA&81
  180 LDA&83:CLC:ADC#7:TAX:.wait TXA:SEC:SBC&82:BPLwait:LDA#&81:LDX#&9D:LDY#&FF:JSRosbyte:BCSstop:LDA#&81:LDX#&8F:LDY#&FF:JSRosbyte:BCSstop
  190 LDA&80:CLC:ADC#1:AND#&F:STA&80:JMPloop
  200 .stop SEI:LDAvector:STA&204:LDAvector+1:STA&205:CLI:RTS
  210 .irq INC&82:JMP(vector)
  220 .vector EQUW0:.cols EQUB0:EQUB0:EQUB4:EQUB4:EQUB4:EQUB6:EQUB6:EQUB6:EQUB7:EQUB7:EQUB7:EQUB6:EQUB6:EQUB4:EQUB4:EQUB0
  230 .data EQUD0
  240 ]:NEXT:ENDPROC

 � Swirly EUG 36
 � by Dominic Ford
 :
( �2:�=&2C00
2 �23,1,0;0;0;0;:�ass
< �r=0�15:�19,r,0,0,0,0,0:�
F *LO. Swirl2
P �swirl
Z �"MENU"
d :
n
 ��ass
x osbyte=&FFF4:osword=&FFF1
� �pass=0�2�2:P%=&2C00
�
 [OPTpass
�y .swirl LDA#0:STA&80:STA&81:SEI:LDA&204:STAvector:LDA&205:STAvector+1:LDA#irq � 256:STA&204:LDA#irq � 256:STA&205:CLI
�| .loop LDA&82:STA&83:LDA&80:CLC:ADC&81:STAdata:LDY&81:LDAcols,Y:STAdata+1:LDA#&C:LDX#data � 256:LDY#data � 256:JSRosword
�/ INC&81:LDA&81:CMP#&10:BNEloop:LDA#0:STA&81
�� LDA&83:CLC:ADC#7:TAX:.wait TXA:SEC:SBC&82:BPLwait:LDA#&81:LDX#&9D:LDY#&FF:JSRosbyte:BCSstop:LDA#&81:LDX#&8F:LDY#&FF:JSRosbyte:BCSstop
�) LDA&80:CLC:ADC#1:�#&F:STA&80:JMPloop
�< .stop SEI:LDAvector:STA&204:LDAvector+1:STA&205:CLI:RTS
� .irq INC&82:JMP(vector)
�x .vector EQUW0:.cols EQUB0:EQUB0:EQUB4:EQUB4:EQUB4:EQUB6:EQUB6:EQUB6:EQUB7:EQUB7:EQUB7:EQUB6:EQUB6:EQUB4:EQUB4:EQUB0
� .data EQUD0
�
 ]:�:�
�
00000000  0d 00 0a 14 20 f4 20 53  77 69 72 6c 79 20 45 55  |.... . Swirly EU|
00000010  47 20 33 36 0d 00 14 16  20 f4 20 62 79 20 44 6f  |G 36.... . by Do|
00000020  6d 69 6e 69 63 20 46 6f  72 64 0d 00 1e 06 20 3a  |minic Ford.... :|
00000030  0d 00 28 0f 20 eb 32 3a  d3 3d 26 32 43 30 30 0d  |..(. .2:.=&2C00.|
00000040  00 32 18 20 ef 32 33 2c  31 2c 30 3b 30 3b 30 3b  |.2. .23,1,0;0;0;|
00000050  30 3b 3a f2 61 73 73 0d  00 3c 1e 20 e3 72 3d 30  |0;:.ass..<. .r=0|
00000060  b8 31 35 3a ef 31 39 2c  72 2c 30 2c 30 2c 30 2c  |.15:.19,r,0,0,0,|
00000070  30 2c 30 3a ed 0d 00 46  10 20 2a 4c 4f 2e 20 53  |0,0:...F. *LO. S|
00000080  77 69 72 6c 32 0d 00 50  0b 20 d6 73 77 69 72 6c  |wirl2..P. .swirl|
00000090  0d 00 5a 0c 20 d7 22 4d  45 4e 55 22 0d 00 64 06  |..Z. ."MENU"..d.|
000000a0  20 3a 0d 00 6e 0a 20 dd  f2 61 73 73 0d 00 78 1e  | :..n. ..ass..x.|
000000b0  20 6f 73 62 79 74 65 3d  26 46 46 46 34 3a 6f 73  | osbyte=&FFF4:os|
000000c0  77 6f 72 64 3d 26 46 46  46 31 0d 00 82 19 20 e3  |word=&FFF1.... .|
000000d0  70 61 73 73 3d 30 b8 32  88 32 3a 50 25 3d 26 32  |pass=0.2.2:P%=&2|
000000e0  43 30 30 0d 00 8c 0d 20  5b 4f 50 54 70 61 73 73  |C00.... [OPTpass|
000000f0  0d 00 96 79 20 2e 73 77  69 72 6c 20 4c 44 41 23  |...y .swirl LDA#|
00000100  30 3a 53 54 41 26 38 30  3a 53 54 41 26 38 31 3a  |0:STA&80:STA&81:|
00000110  53 45 49 3a 4c 44 41 26  32 30 34 3a 53 54 41 76  |SEI:LDA&204:STAv|
00000120  65 63 74 6f 72 3a 4c 44  41 26 32 30 35 3a 53 54  |ector:LDA&205:ST|
00000130  41 76 65 63 74 6f 72 2b  31 3a 4c 44 41 23 69 72  |Avector+1:LDA#ir|
00000140  71 20 83 20 32 35 36 3a  53 54 41 26 32 30 34 3a  |q . 256:STA&204:|
00000150  4c 44 41 23 69 72 71 20  81 20 32 35 36 3a 53 54  |LDA#irq . 256:ST|
00000160  41 26 32 30 35 3a 43 4c  49 0d 00 a0 7c 20 2e 6c  |A&205:CLI...| .l|
00000170  6f 6f 70 20 4c 44 41 26  38 32 3a 53 54 41 26 38  |oop LDA&82:STA&8|
00000180  33 3a 4c 44 41 26 38 30  3a 43 4c 43 3a 41 44 43  |3:LDA&80:CLC:ADC|
00000190  26 38 31 3a 53 54 41 64  61 74 61 3a 4c 44 59 26  |&81:STAdata:LDY&|
000001a0  38 31 3a 4c 44 41 63 6f  6c 73 2c 59 3a 53 54 41  |81:LDAcols,Y:STA|
000001b0  64 61 74 61 2b 31 3a 4c  44 41 23 26 43 3a 4c 44  |data+1:LDA#&C:LD|
000001c0  58 23 64 61 74 61 20 83  20 32 35 36 3a 4c 44 59  |X#data . 256:LDY|
000001d0  23 64 61 74 61 20 81 20  32 35 36 3a 4a 53 52 6f  |#data . 256:JSRo|
000001e0  73 77 6f 72 64 0d 00 aa  2f 20 49 4e 43 26 38 31  |sword.../ INC&81|
000001f0  3a 4c 44 41 26 38 31 3a  43 4d 50 23 26 31 30 3a  |:LDA&81:CMP#&10:|
00000200  42 4e 45 6c 6f 6f 70 3a  4c 44 41 23 30 3a 53 54  |BNEloop:LDA#0:ST|
00000210  41 26 38 31 0d 00 b4 8a  20 4c 44 41 26 38 33 3a  |A&81.... LDA&83:|
00000220  43 4c 43 3a 41 44 43 23  37 3a 54 41 58 3a 2e 77  |CLC:ADC#7:TAX:.w|
00000230  61 69 74 20 54 58 41 3a  53 45 43 3a 53 42 43 26  |ait TXA:SEC:SBC&|
00000240  38 32 3a 42 50 4c 77 61  69 74 3a 4c 44 41 23 26  |82:BPLwait:LDA#&|
00000250  38 31 3a 4c 44 58 23 26  39 44 3a 4c 44 59 23 26  |81:LDX#&9D:LDY#&|
00000260  46 46 3a 4a 53 52 6f 73  62 79 74 65 3a 42 43 53  |FF:JSRosbyte:BCS|
00000270  73 74 6f 70 3a 4c 44 41  23 26 38 31 3a 4c 44 58  |stop:LDA#&81:LDX|
00000280  23 26 38 46 3a 4c 44 59  23 26 46 46 3a 4a 53 52  |#&8F:LDY#&FF:JSR|
00000290  6f 73 62 79 74 65 3a 42  43 53 73 74 6f 70 0d 00  |osbyte:BCSstop..|
000002a0  be 29 20 4c 44 41 26 38  30 3a 43 4c 43 3a 41 44  |.) LDA&80:CLC:AD|
000002b0  43 23 31 3a 80 23 26 46  3a 53 54 41 26 38 30 3a  |C#1:.#&F:STA&80:|
000002c0  4a 4d 50 6c 6f 6f 70 0d  00 c8 3c 20 2e 73 74 6f  |JMPloop...< .sto|
000002d0  70 20 53 45 49 3a 4c 44  41 76 65 63 74 6f 72 3a  |p SEI:LDAvector:|
000002e0  53 54 41 26 32 30 34 3a  4c 44 41 76 65 63 74 6f  |STA&204:LDAvecto|
000002f0  72 2b 31 3a 53 54 41 26  32 30 35 3a 43 4c 49 3a  |r+1:STA&205:CLI:|
00000300  52 54 53 0d 00 d2 1c 20  2e 69 72 71 20 49 4e 43  |RTS.... .irq INC|
00000310  26 38 32 3a 4a 4d 50 28  76 65 63 74 6f 72 29 0d  |&82:JMP(vector).|
00000320  00 dc 78 20 2e 76 65 63  74 6f 72 20 45 51 55 57  |..x .vector EQUW|
00000330  30 3a 2e 63 6f 6c 73 20  45 51 55 42 30 3a 45 51  |0:.cols EQUB0:EQ|
00000340  55 42 30 3a 45 51 55 42  34 3a 45 51 55 42 34 3a  |UB0:EQUB4:EQUB4:|
00000350  45 51 55 42 34 3a 45 51  55 42 36 3a 45 51 55 42  |EQUB4:EQUB6:EQUB|
00000360  36 3a 45 51 55 42 36 3a  45 51 55 42 37 3a 45 51  |6:EQUB6:EQUB7:EQ|
00000370  55 42 37 3a 45 51 55 42  37 3a 45 51 55 42 36 3a  |UB7:EQUB7:EQUB6:|
00000380  45 51 55 42 36 3a 45 51  55 42 34 3a 45 51 55 42  |EQUB6:EQUB4:EQUB|
00000390  34 3a 45 51 55 42 30 0d  00 e6 10 20 2e 64 61 74  |4:EQUB0.... .dat|
000003a0  61 20 45 51 55 44 30 0d  00 f0 0a 20 5d 3a ed 3a  |a EQUD0.... ]:.:|
000003b0  e1 0d ff                                          |...|
000003b3