!AWFeb91/Goodies/ProgARM/Program1

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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 » Archimedes World » AW-1991-02.adf
Filename:	!AWFeb91/Goodies/ProgARM/Program1
Read OK:	✔
File size:	044B bytes
Load address:	FFFFFB42
Exec address:	CB48A82E

File contents

   10REM >Program1
   30MODE 9
   50name$="robert"
   70buffer%=FNload_sprite(name$)
   90sprite_start%=buffer%+buffer%!(2*4)
  100data_start%  =sprite_start%+sprite_start%!(8*4)
  110data_end%    =sprite_start%+sprite_start%!0
  120palette%     =sprite_start%+11*4
  140FOR I%=0 TO 15
  150  COLOURI%,palette%!(I%*4)
  160NEXT
  180SYS "OS_SpriteOp",34+256,buffer%,name$,0,0,0
  200key=GET
  230FORI%=data_start% TO data_end%-1
  240  SYS "Hourglass_Percentage",(I%-data_start%)*100 DIV (data_start%-data_end%)
  250  I%?0=FNcorrupt(I%?0,8)
  260  IF (I% AND &3F)= 0 THEN
  270    SYS "OS_SpriteOp",34+256,buffer%,name$,0,0,0
  271  ENDIF
  280NEXT
  310SYS "OS_SpriteOp",34+256,buffer%,name$,0,0,0
  330key=GET
  350END
  370DEFFNload_sprite(name$)
  380LOCALlen%,hand%,buf%
  390hand%=OPENIN(name$)
  400IF hand%<>0 THEN
  410  len%=EXT#hand%+&100
  420  DIM buf% len%
  430  buf%!0=len%
  440  buf%!4=0
  450  buf%!8=16
  460  buf%!12=16
  470  SYS "OS_SpriteOp",9+256,buf%
  480  SYS "OS_SpriteOp",10+256,buf%,name$
  490  CLOSE#hand%
  500ENDIF
  510=buf%
  530DEFFNcorrupt(data%,bits%)
  540LOCALI%
  550FORI%=0TObits%-1
  560  IF RND(100) <5 THEN
  570    data%= data% EOR (1<<I%)
  580  ENDIF
  590NEXT
  600=data%
  620DEFFNrndbit(bits%)
  630LOCAL shift%
  640shift%=RND(bits%)-1
  650=1<<shift%


� >Program1
� 9
2name$="robert"
Fbuffer%=�load_sprite(name$)
Z'sprite_start%=buffer%+buffer%!(2*4)
d3data_start%  =sprite_start%+sprite_start%!(8*4)
n/data_end%    =sprite_start%+sprite_start%!0
x$palette%     =sprite_start%+11*4
�� I%=0 � 15
�  �I%,palette%!(I%*4)
��
�/ș "OS_SpriteOp",34+256,buffer%,name$,0,0,0
�	key=�
�!�I%=data_start% � data_end%-1
�N  ș "Hourglass_Percentage",(I%-data_start%)*100 � (data_start%-data_end%)
�  I%?0=�corrupt(I%?0,8)
  � (I% � &3F)= 0 �
3    ș "OS_SpriteOp",34+256,buffer%,name$,0,0,0
  �
�
6/ș "OS_SpriteOp",34+256,buffer%,name$,0,0,0
J	key=�
^�
rݤload_sprite(name$)
|�len%,hand%,buf%
�hand%=�(name$)
�� hand%<>0 �
�  len%=�#hand%+&100
�  � buf% len%
�  buf%!0=len%
�  buf%!4=0
�  buf%!8=16
�  buf%!12=16
�!  ș "OS_SpriteOp",9+256,buf%
�(  ș "OS_SpriteOp",10+256,buf%,name$
�
  �#hand%
��
�	=buf%
ݤcorrupt(data%,bits%)
�I%
&�I%=0�bits%-1
0  � �(100) <5 �
:    data%= data% � (1<<I%)
D  �
N�
X
=data%
lݤrndbit(bits%)
v� shift%
�shift%=�(bits%)-1
�=1<<shift%
�

00000000  0d 00 0a 0f f4 20 3e 50  72 6f 67 72 61 6d 31 0d  |..... >Program1.|
00000010  00 1e 07 eb 20 39 0d 00  32 12 6e 61 6d 65 24 3d  |.... 9..2.name$=|
00000020  22 72 6f 62 65 72 74 22  0d 00 46 1f 62 75 66 66  |"robert"..F.buff|
00000030  65 72 25 3d a4 6c 6f 61  64 5f 73 70 72 69 74 65  |er%=.load_sprite|
00000040  28 6e 61 6d 65 24 29 0d  00 5a 27 73 70 72 69 74  |(name$)..Z'sprit|
00000050  65 5f 73 74 61 72 74 25  3d 62 75 66 66 65 72 25  |e_start%=buffer%|
00000060  2b 62 75 66 66 65 72 25  21 28 32 2a 34 29 0d 00  |+buffer%!(2*4)..|
00000070  64 33 64 61 74 61 5f 73  74 61 72 74 25 20 20 3d  |d3data_start%  =|
00000080  73 70 72 69 74 65 5f 73  74 61 72 74 25 2b 73 70  |sprite_start%+sp|
00000090  72 69 74 65 5f 73 74 61  72 74 25 21 28 38 2a 34  |rite_start%!(8*4|
000000a0  29 0d 00 6e 2f 64 61 74  61 5f 65 6e 64 25 20 20  |)..n/data_end%  |
000000b0  20 20 3d 73 70 72 69 74  65 5f 73 74 61 72 74 25  |  =sprite_start%|
000000c0  2b 73 70 72 69 74 65 5f  73 74 61 72 74 25 21 30  |+sprite_start%!0|
000000d0  0d 00 78 24 70 61 6c 65  74 74 65 25 20 20 20 20  |..x$palette%    |
000000e0  20 3d 73 70 72 69 74 65  5f 73 74 61 72 74 25 2b  | =sprite_start%+|
000000f0  31 31 2a 34 0d 00 8c 0f  e3 20 49 25 3d 30 20 b8  |11*4..... I%=0 .|
00000100  20 31 35 0d 00 96 19 20  20 fb 49 25 2c 70 61 6c  | 15....  .I%,pal|
00000110  65 74 74 65 25 21 28 49  25 2a 34 29 0d 00 a0 05  |ette%!(I%*4)....|
00000120  ed 0d 00 b4 2f c8 99 20  22 4f 53 5f 53 70 72 69  |..../.. "OS_Spri|
00000130  74 65 4f 70 22 2c 33 34  2b 32 35 36 2c 62 75 66  |teOp",34+256,buf|
00000140  66 65 72 25 2c 6e 61 6d  65 24 2c 30 2c 30 2c 30  |fer%,name$,0,0,0|
00000150  0d 00 c8 09 6b 65 79 3d  a5 0d 00 e6 21 e3 49 25  |....key=....!.I%|
00000160  3d 64 61 74 61 5f 73 74  61 72 74 25 20 b8 20 64  |=data_start% . d|
00000170  61 74 61 5f 65 6e 64 25  2d 31 0d 00 f0 4e 20 20  |ata_end%-1...N  |
00000180  c8 99 20 22 48 6f 75 72  67 6c 61 73 73 5f 50 65  |.. "Hourglass_Pe|
00000190  72 63 65 6e 74 61 67 65  22 2c 28 49 25 2d 64 61  |rcentage",(I%-da|
000001a0  74 61 5f 73 74 61 72 74  25 29 2a 31 30 30 20 81  |ta_start%)*100 .|
000001b0  20 28 64 61 74 61 5f 73  74 61 72 74 25 2d 64 61  | (data_start%-da|
000001c0  74 61 5f 65 6e 64 25 29  0d 00 fa 1b 20 20 49 25  |ta_end%)....  I%|
000001d0  3f 30 3d a4 63 6f 72 72  75 70 74 28 49 25 3f 30  |?0=.corrupt(I%?0|
000001e0  2c 38 29 0d 01 04 17 20  20 e7 20 28 49 25 20 80  |,8)....  . (I% .|
000001f0  20 26 33 46 29 3d 20 30  20 8c 0d 01 0e 33 20 20  | &3F)= 0 ....3  |
00000200  20 20 c8 99 20 22 4f 53  5f 53 70 72 69 74 65 4f  |  .. "OS_SpriteO|
00000210  70 22 2c 33 34 2b 32 35  36 2c 62 75 66 66 65 72  |p",34+256,buffer|
00000220  25 2c 6e 61 6d 65 24 2c  30 2c 30 2c 30 0d 01 0f  |%,name$,0,0,0...|
00000230  07 20 20 cd 0d 01 18 05  ed 0d 01 36 2f c8 99 20  |.  ........6/.. |
00000240  22 4f 53 5f 53 70 72 69  74 65 4f 70 22 2c 33 34  |"OS_SpriteOp",34|
00000250  2b 32 35 36 2c 62 75 66  66 65 72 25 2c 6e 61 6d  |+256,buffer%,nam|
00000260  65 24 2c 30 2c 30 2c 30  0d 01 4a 09 6b 65 79 3d  |e$,0,0,0..J.key=|
00000270  a5 0d 01 5e 05 e0 0d 01  72 18 dd a4 6c 6f 61 64  |...^....r...load|
00000280  5f 73 70 72 69 74 65 28  6e 61 6d 65 24 29 0d 01  |_sprite(name$)..|
00000290  7c 14 ea 6c 65 6e 25 2c  68 61 6e 64 25 2c 62 75  ||..len%,hand%,bu|
000002a0  66 25 0d 01 86 12 68 61  6e 64 25 3d 8e 28 6e 61  |f%....hand%=.(na|
000002b0  6d 65 24 29 0d 01 90 10  e7 20 68 61 6e 64 25 3c  |me$)..... hand%<|
000002c0  3e 30 20 8c 0d 01 9a 17  20 20 6c 65 6e 25 3d a2  |>0 .....  len%=.|
000002d0  23 68 61 6e 64 25 2b 26  31 30 30 0d 01 a4 11 20  |#hand%+&100.... |
000002e0  20 de 20 62 75 66 25 20  6c 65 6e 25 0d 01 ae 11  | . buf% len%....|
000002f0  20 20 62 75 66 25 21 30  3d 6c 65 6e 25 0d 01 b8  |  buf%!0=len%...|
00000300  0e 20 20 62 75 66 25 21  34 3d 30 0d 01 c2 0f 20  |.  buf%!4=0.... |
00000310  20 62 75 66 25 21 38 3d  31 36 0d 01 cc 10 20 20  | buf%!8=16....  |
00000320  62 75 66 25 21 31 32 3d  31 36 0d 01 d6 21 20 20  |buf%!12=16...!  |
00000330  c8 99 20 22 4f 53 5f 53  70 72 69 74 65 4f 70 22  |.. "OS_SpriteOp"|
00000340  2c 39 2b 32 35 36 2c 62  75 66 25 0d 01 e0 28 20  |,9+256,buf%...( |
00000350  20 c8 99 20 22 4f 53 5f  53 70 72 69 74 65 4f 70  | .. "OS_SpriteOp|
00000360  22 2c 31 30 2b 32 35 36  2c 62 75 66 25 2c 6e 61  |",10+256,buf%,na|
00000370  6d 65 24 0d 01 ea 0d 20  20 d9 23 68 61 6e 64 25  |me$....  .#hand%|
00000380  0d 01 f4 05 cd 0d 01 fe  09 3d 62 75 66 25 0d 02  |.........=buf%..|
00000390  12 1a dd a4 63 6f 72 72  75 70 74 28 64 61 74 61  |....corrupt(data|
000003a0  25 2c 62 69 74 73 25 29  0d 02 1c 07 ea 49 25 0d  |%,bits%).....I%.|
000003b0  02 26 11 e3 49 25 3d 30  b8 62 69 74 73 25 2d 31  |.&..I%=0.bits%-1|
000003c0  0d 02 30 13 20 20 e7 20  b3 28 31 30 30 29 20 3c  |..0.  . .(100) <|
000003d0  35 20 8c 0d 02 3a 1e 20  20 20 20 64 61 74 61 25  |5 ...:.    data%|
000003e0  3d 20 64 61 74 61 25 20  82 20 28 31 3c 3c 49 25  |= data% . (1<<I%|
000003f0  29 0d 02 44 07 20 20 cd  0d 02 4e 05 ed 0d 02 58  |)..D.  ...N....X|
00000400  0a 3d 64 61 74 61 25 0d  02 6c 13 dd a4 72 6e 64  |.=data%..l...rnd|
00000410  62 69 74 28 62 69 74 73  25 29 0d 02 76 0c ea 20  |bit(bits%)..v.. |
00000420  73 68 69 66 74 25 0d 02  80 15 73 68 69 66 74 25  |shift%....shift%|
00000430  3d b3 28 62 69 74 73 25  29 2d 31 0d 02 8a 0e 3d  |=.(bits%)-1....=|
00000440  31 3c 3c 73 68 69 66 74  25 0d ff                 |1<<shift%..|
0000044b

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