BINARY.TM	7-4-93 by dmh.zip
This turing machine should count binary values from 0 up to infinity.
Each run should increment the binary value expressed on the tape.
This early version will allow the number to grow leftward onto the tape.
Now handles pre-existing numbers correctly, starting from any digit!
Future challenge:  keep it left-justified!

Normal halting state is H.

(0 1RR		Start off the number
(0001R		Head for ones digit
(0111R

(1001R		head for ones digit
(1111R

(1  2L		Found ones digit

(201RR		Add one and finish.
(2102L		Carry on..
(2 1RR		Add a new digit and finish.

(R00RR		return to ones digit for complete cycle
(R11RR
(R  HL		finished!