
Self-Organizing Data and Signal Cellular Systems
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Figure 6.16 shows the symbols and the hexadecimal codes of the signals. Some
of them are strictly eastward or westward oriented like the close and repair signals
while the others have no preferential direction.
According to the Tom Thumb algorithm,
1
the growth signals are generated
for special configurations of the flag data in a 2 × N-level stack implemented in
the molecule. The truth table of Figure 6.17 shows the configuration in the levels
GN-1, PN-1, and PN producing the northward, eastward, southward, andwestward
growth signals, respectively.
Empty (0)
Close (3)
Repair (6)
Growth (1)
Reset (2, 5)
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