# Emulation of a Register Machine by an Arithmetic System Rule

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This Demonstration shows that it is possible to emulate a register machine using an arithmetic system. From *A New Kind of Science*, page 673: "The arithmetic system takes the value that it obtains at each step, computes , and then depending on the result applies to one of the arithmetic operations specified by the rule [as shown in the rule icon]. The rule is set up so that if the value of is written in the form then the values of , and on successive steps correspond respectively to the position of the register machine in its program, and to the values of the two registers."

Contributed by: Abigail Nussey (March 2011)

Based on a program by: Todd Rowland

Open content licensed under CC BY-NC-SA

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For more information, see Stephen Wolfram's *A New Kind of Science*, pp. 664–673 (*NKS|Online*).

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