Re: How to write a self-referencial TM?

[I mistakenly sent my reply by email first time round. My apologies to wij for the mis-click.]
On 14/05/2025 06:13, wij wrote:

Q: Write a turing machine that performs D function (which calls itself):
 void D() {
  D();
}
 Easy?
 

Yes.
Here's the tape:
[0]
current state: 0
content of the square being scanned: 0
new content of the square: 0
move left, right, or stay: stay
next state: 0
--
Richard Heathfield
Email: rjh at cpax dot org dot uk
"Usenet is a strange place" - dmr 29 July 1999
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