Definition:Unlimited Register Machine/Program/Line

Definition

For historical reasons, the index of an instruction in a given URM program is called its line number.

We can refer either to the line of the program or the line in the URM.

Also see

• Results about unlimited register machines can be found here.

Sources

• 1963: John C. Shepherdson and H.E. Sturgis: Computability of Recursive Functions (J. ACM Vol. 10, no. 2: pp. 217 – 255)

• 1980: N.J. Cutland: Computability: An Introduction to Recursive Function Theory