HHH(DDD) sees the exact same behavior pattern as HHH(Infinite_Recursion)

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Sujet : HHH(DDD) sees the exact same behavior pattern as HHH(Infinite_Recursion)
De : polcott333 (at) *nospam* gmail.com (olcott)
Groupes : comp.theory
Date : 28. Jul 2024, 15:32:07
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v85kp7$3v9fb$3@dont-email.me>
User-Agent : Mozilla Thunderbird
It is ridiculously stupid to expect the correct emulation
of a non-halting input to end.
HHH(DDD) is the exact same pattern with Infinite_Recursion()
where there are no conditional branch instructions that would
prevent the first three instructions of Infinite_Recursion()
from endlessly repeating.
void Infinite_Recursion()
{
   Infinite_Recursion();
}
_Infinite_Recursion()
[0000215a] 55         push ebp      ; 1st line
[0000215b] 8bec       mov ebp,esp   ; 2nd line
[0000215d] e8f8ffffff call 0000215a ; 3rd line
[00002162] 5d         pop ebp
[00002163] c3         ret
Size in bytes:(0010) [00002163]
Begin Local Halt Decider Simulation   Execution Trace Stored at:113934
[0000215a][00113924][00113928] 55         push ebp      ; 1st line
[0000215b][00113924][00113928] 8bec       mov ebp,esp   ; 2nd line
[0000215d][00113920][00002162] e8f8ffffff call 0000215a ; 3rd line
[0000215a][0011391c][00113924] 55         push ebp      ; 1st line
[0000215b][0011391c][00113924] 8bec       mov ebp,esp   ; 2nd line
[0000215d][00113918][00002162] e8f8ffffff call 0000215a ; 3rd line
Local Halt Decider: Infinite Recursion Detected Simulation Stopped
If you cannot see that the above x86 machine code proves that
it will never halt then you can't possibly understand what I
have been saying.
The first three lines of _Infinite_Recursion() repeat and there
are no conditional branch in that sequence that can possibly keep
it from repeating forever.
HHH(DDD) is the exact same pattern is shown below. The first
four lines of DDD repeat and there are are no conditional branch
in that sequence that can possibly keep it from repeating forever.
=====
void DDD()
{
   HHH(DDD);
}
_DDD()
[00002177] 55               push ebp      ; 1st line
[00002178] 8bec             mov ebp,esp   ; 2nd line
[0000217a] 6877210000       push 00002177 ; push DDD
[0000217f] e853f4ffff       call 000015d7 ; call HHH
[00002184] 83c404           add esp,+04
[00002187] 5d               pop ebp
[00002188] c3               ret
Size in bytes:(0018) [00002188]
// executed HHH emulates 1st instance of DDD
New slave_stack at:10388d
Begin Local Halt Decider Simulation   Execution Trace Stored at:113895
[00002177][00113885][00113889] 55         push ebp      ; 1st line
[00002178][00113885][00113889] 8bec       mov ebp,esp   ; 2nd line
[0000217a][00113881][00002177] 6877210000 push 00002177 ; push DDD
[0000217f][0011387d][00002184] e853f4ffff call 000015d7 ; call HHH
// emulated HHH emulates 2nd instance of DDD
New slave_stack at:14e2b5
[00002177][0015e2ad][0015e2b1] 55         push ebp      ; 1st line
[00002178][0015e2ad][0015e2b1] 8bec       mov ebp,esp   ; 2nd line
[0000217a][0015e2a9][00002177] 6877210000 push 00002177 ; push DDD
[0000217f][0015e2a5][00002184] e853f4ffff call 000015d7 ; call HHH
Local Halt Decider: Infinite Recursion Detected Simulation Stopped
--
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
28 Jul 24 * HHH(DDD) sees the exact same behavior pattern as HHH(Infinite_Recursion)3olcott
28 Jul 24 +- Re: HHH(DDD) does not see the exact same behavior pattern as HHH(Infinite_Recursion)1Richard Damon
28 Jul 24 `- Re: HHH(DDD) sees the exact same behavior pattern as HHH(Infinite_Recursion)1Fred. Zwarts

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