Abelian sandpile model: Difference between revisions
Content added Content deleted
m (improved Forth solution) |
m (small Forth improvement) |
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: row<SIZE over SIZE < ensure ; |
: row<SIZE over SIZE < ensure ; |
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: legal? col>=0 col<SIZE row>=0 row<SIZE 2drop true ; |
: legal? col>=0 col<SIZE row>=0 row<SIZE 2drop true ; |
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: north |
: north 1. d- ; |
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: east 1+ ; |
: east 1+ ; |
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: south |
: south 1. d+ ; |
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: west 1- ; |
: west 1- ; |
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: reduce peek 2dup ix dup -4 swap +! @ 4 < if dec-stack then ; |
: reduce peek 2dup ix dup -4 swap +! @ 4 < if dec-stack then ; |
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