Home » Recent acquisitions » Acorn ADFS disks » adfs_ArchimedesWorld_199201.adf » January92 » !AWJan92/Goodies/ArcAut/Automatons/Hodge
!AWJan92/Goodies/ArcAut/Automatons/Hodge
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 » Recent acquisitions » Acorn ADFS disks » adfs_ArchimedesWorld_199201.adf » January92 |
| Filename: | !AWJan92/Goodies/ArcAut/Automatons/Hodge |
| Read OK: | ✔ |
| File size: | 0393 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
AUTOMATON*
Hodge_Podge
An interesting 256 state Moore neighbourhood automaton, originally
described in 'Scientific American'. Compare the behaviour with the much
simpler 'Rug'. This is a slow automaton, as it requires a division
calculation to be performed for each cell, so try a window of size 50x50.
INITIALISATION*
10DEF PROCdo
20*SetEval wrap on
30*SetEval sick 255
40*SetEval g 3
50*SetEval k1 2
60*SetEval k2 1
70ENDPROC
SCREEN*
10DEF PROCdo
20DIM buf% 256:SYS "OS_ReadVarVal","sick",buf%,256:sick=!buf%
30PROCsoup(0,sick+1,1)
40ENDPROC
CODE*
( READ_NEIG
CELL <sick> = IF (dead ==)
CELL dead = IF (dead SCOUNT_ALL DUP <k2>
DIV TRASH SWAP <sick> SCOUNT_ALL
+ 9 SWAP - <k2> DIV TRASH + == )
ELSE (SUM_ALL [dead+1] [<sick>-1] MCOUNT_ALL
DIV TRASH <g> + == ) )
END* 00000000 41 55 54 4f 4d 41 54 4f 4e 2a 0a 0a 20 20 48 6f |AUTOMATON*.. Ho| 00000010 64 67 65 5f 50 6f 64 67 65 0a 0a 20 20 41 6e 20 |dge_Podge.. An | 00000020 69 6e 74 65 72 65 73 74 69 6e 67 20 32 35 36 20 |interesting 256 | 00000030 73 74 61 74 65 20 4d 6f 6f 72 65 20 6e 65 69 67 |state Moore neig| 00000040 68 62 6f 75 72 68 6f 6f 64 20 61 75 74 6f 6d 61 |hbourhood automa| 00000050 74 6f 6e 2c 20 6f 72 69 67 69 6e 61 6c 6c 79 0a |ton, originally.| 00000060 20 20 64 65 73 63 72 69 62 65 64 20 69 6e 20 27 | described in '| 00000070 53 63 69 65 6e 74 69 66 69 63 20 41 6d 65 72 69 |Scientific Ameri| 00000080 63 61 6e 27 2e 20 43 6f 6d 70 61 72 65 20 74 68 |can'. Compare th| 00000090 65 20 62 65 68 61 76 69 6f 75 72 20 77 69 74 68 |e behaviour with| 000000a0 20 74 68 65 20 6d 75 63 68 0a 20 20 73 69 6d 70 | the much. simp| 000000b0 6c 65 72 20 27 52 75 67 27 2e 20 54 68 69 73 20 |ler 'Rug'. This | 000000c0 69 73 20 61 20 73 6c 6f 77 20 61 75 74 6f 6d 61 |is a slow automa| 000000d0 74 6f 6e 2c 20 61 73 20 69 74 20 72 65 71 75 69 |ton, as it requi| 000000e0 72 65 73 20 61 20 64 69 76 69 73 69 6f 6e 0a 20 |res a division. | 000000f0 20 63 61 6c 63 75 6c 61 74 69 6f 6e 20 74 6f 20 | calculation to | 00000100 62 65 20 70 65 72 66 6f 72 6d 65 64 20 66 6f 72 |be performed for| 00000110 20 65 61 63 68 20 63 65 6c 6c 2c 20 73 6f 20 74 | each cell, so t| 00000120 72 79 20 61 20 77 69 6e 64 6f 77 20 6f 66 20 73 |ry a window of s| 00000130 69 7a 65 20 35 30 78 35 30 2e 0a 0a 49 4e 49 54 |ize 50x50...INIT| 00000140 49 41 4c 49 53 41 54 49 4f 4e 2a 0a 0a 20 20 31 |IALISATION*.. 1| 00000150 30 44 45 46 20 50 52 4f 43 64 6f 0a 20 20 32 30 |0DEF PROCdo. 20| 00000160 2a 53 65 74 45 76 61 6c 20 77 72 61 70 20 6f 6e |*SetEval wrap on| 00000170 0a 20 20 33 30 2a 53 65 74 45 76 61 6c 20 73 69 |. 30*SetEval si| 00000180 63 6b 20 32 35 35 0a 20 20 34 30 2a 53 65 74 45 |ck 255. 40*SetE| 00000190 76 61 6c 20 67 20 33 0a 20 20 35 30 2a 53 65 74 |val g 3. 50*Set| 000001a0 45 76 61 6c 20 6b 31 20 32 0a 20 20 36 30 2a 53 |Eval k1 2. 60*S| 000001b0 65 74 45 76 61 6c 20 6b 32 20 31 0a 20 20 37 30 |etEval k2 1. 70| 000001c0 45 4e 44 50 52 4f 43 0a 0a 53 43 52 45 45 4e 2a |ENDPROC..SCREEN*| 000001d0 0a 0a 20 20 31 30 44 45 46 20 50 52 4f 43 64 6f |.. 10DEF PROCdo| 000001e0 0a 20 20 32 30 44 49 4d 20 62 75 66 25 20 32 35 |. 20DIM buf% 25| 000001f0 36 3a 53 59 53 20 22 4f 53 5f 52 65 61 64 56 61 |6:SYS "OS_ReadVa| 00000200 72 56 61 6c 22 2c 22 73 69 63 6b 22 2c 62 75 66 |rVal","sick",buf| 00000210 25 2c 32 35 36 3a 73 69 63 6b 3d 21 62 75 66 25 |%,256:sick=!buf%| 00000220 0a 20 20 33 30 50 52 4f 43 73 6f 75 70 28 30 2c |. 30PROCsoup(0,| 00000230 73 69 63 6b 2b 31 2c 31 29 0a 20 20 34 30 45 4e |sick+1,1). 40EN| 00000240 44 50 52 4f 43 0a 0a 43 4f 44 45 2a 0a 0a 28 20 |DPROC..CODE*..( | 00000250 52 45 41 44 5f 4e 45 49 47 0a 20 20 43 45 4c 4c |READ_NEIG. CELL| 00000260 20 3c 73 69 63 6b 3e 20 3d 20 49 46 20 28 64 65 | <sick> = IF (de| 00000270 61 64 20 3d 3d 29 0a 20 20 43 45 4c 4c 20 20 64 |ad ==). CELL d| 00000280 65 61 64 20 20 3d 20 49 46 20 28 64 65 61 64 20 |ead = IF (dead | 00000290 53 43 4f 55 4e 54 5f 41 4c 4c 20 44 55 50 20 3c |SCOUNT_ALL DUP <| 000002a0 6b 32 3e 0a 20 20 20 20 20 20 20 20 20 20 20 20 |k2>. | 000002b0 20 20 20 20 20 20 20 20 44 49 56 20 54 52 41 53 | DIV TRAS| 000002c0 48 20 53 57 41 50 20 3c 73 69 63 6b 3e 20 53 43 |H SWAP <sick> SC| 000002d0 4f 55 4e 54 5f 41 4c 4c 0a 20 20 20 20 20 20 20 |OUNT_ALL. | 000002e0 20 20 20 20 20 20 20 20 20 20 20 20 20 2b 20 39 | + 9| 000002f0 20 53 57 41 50 20 2d 20 3c 6b 32 3e 20 44 49 56 | SWAP - <k2> DIV| 00000300 20 54 52 41 53 48 20 2b 20 3d 3d 20 20 20 20 20 | TRASH + == | 00000310 20 20 20 29 0a 20 20 20 20 20 20 20 20 20 20 20 | ). | 00000320 20 20 20 45 4c 53 45 20 28 53 55 4d 5f 41 4c 4c | ELSE (SUM_ALL| 00000330 20 5b 64 65 61 64 2b 31 5d 20 5b 3c 73 69 63 6b | [dead+1] [<sick| 00000340 3e 2d 31 5d 20 4d 43 4f 55 4e 54 5f 41 4c 4c 0a |>-1] MCOUNT_ALL.| 00000350 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000360 20 20 20 20 44 49 56 20 54 52 41 53 48 20 3c 67 | DIV TRASH <g| 00000370 3e 20 2b 20 3d 3d 20 20 20 20 20 20 20 20 20 20 |> + == | 00000380 20 20 20 20 20 20 20 20 20 20 29 20 29 0a 0a 45 | ) )..E| 00000390 4e 44 2a |ND*| 00000393
.