Can you see that D correctly simulated by H remains stuck in recursive simulation?

Liste des GroupesRevenir à c theory 
Sujet : Can you see that D correctly simulated by H remains stuck in recursive simulation?
De : polcott333 (at) *nospam* gmail.com (olcott)
Groupes : comp.lang.c++ comp.lang.c
Date : 23. May 2024, 17:52:21
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v2ns85$1rd65$1@dont-email.me>
User-Agent : Mozilla Thunderbird
typedef int (*ptr)();  // ptr is pointer to int function in C
00       int H(ptr p, ptr i);
01       int D(ptr p)
02       {
03         int Halt_Status = H(p, p);
04         if (Halt_Status)
05           HERE: goto HERE;
06         return Halt_Status;
07       }
08
09       int main()
10       {
11         H(D,D);
12         return 0;
13       }
The above template refers to an infinite set of H/D pairs where D is
correctly simulated by pure function H. This was done because many
reviewers used the shell game ploy to endlessly switch which H/D was
being referred to.
*Correct Simulation Defined*
This is provided because every reviewer had a different notion of
correct simulation that diverges from this notion.
In the above case a simulator is an x86 emulator that correctly emulates
at least one of the x86 instructions of D in the order specified by the
x86 instructions of D.
This may include correctly emulating the x86 instructions of H in the
order specified by the x86 instructions of H thus calling H(D,D) in
recursive simulation.
*Execution Trace*
Line 11: main() invokes H(D,D); H(D,D) simulates lines 01, 02, and 03 of
D. This invokes H(D,D) again to repeat the process in endless recursive
simulation.
--
Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer

Date Sujet#  Auteur
22 Dec 24 o 

Haut de la page

Les messages affichés proviennent d'usenet.

NewsPortal