22 lines
636 B
Scheme
22 lines
636 B
Scheme
(define (rule30-step b)
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(let ((L (ash b -1))
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(R (ash b 1)))
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(let ((~b (lognot b))
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(~L (lognot L))
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(~R (lognot R)))
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(logior (logand L ~b ~R)
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(logand ~L b R)
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(logand ~L b ~R)
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(logand ~L ~b R)))))
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(define (bin-draw s)
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(string.map (lambda (c) (case c
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(#\1 #\#)
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(#\0 #\ )
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(else c)))
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s))
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(for-each (lambda (n)
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(displayln (bin-draw (string.lpad (number->string n 2) 63 #\0))))
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(nestlist rule30-step (uint64 #x0000000080000000) 32))
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