kolibrios-gitea/programs/demos/life2/lif/ADDER.lif

#Life 1.05
#D Binary Adder
#D By David Buckingham, with size optimization by Mark
#D Niemec, 1975.  Two glider streams enter the lower
#D right, representing the binary numbers 1110 and 0011.
#D The sum, 10001, appears from the middle right side
#D after about one thousand generations. The gliders go
#D in and come out backwards -- that is, 1's place first.
#D That way, the numbers to be added can be arbitrarily
#D large.
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