Sujet : Re: Defining a correct simulating halt decider
De : polcott333 (at) *nospam* gmail.com (olcott)
Groupes : comp.theoryDate : 12. Sep 2024, 12:08:30
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vbui3e$7g4h$2@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
User-Agent : Mozilla Thunderbird
On 9/12/2024 3:07 AM, Mikko wrote:
On 2024-09-11 22:35:07 +0000, olcott said:
On 9/11/2024 11:23 AM, Fred. Zwarts wrote:
Op 11.sep.2024 om 13:49 schreef olcott:
On 9/10/2024 6:50 AM, Fred. Zwarts wrote:
Op 09.sep.2024 om 20:19 schreef olcott:
On 9/8/2024 9:53 AM, Mikko wrote:
On 2024-09-07 13:57:00 +0000, olcott said:
>
On 9/7/2024 3:29 AM, Mikko wrote:
On 2024-09-07 05:12:19 +0000, joes said:
>
Am Fri, 06 Sep 2024 06:42:48 -0500 schrieb olcott:
On 9/6/2024 6:19 AM, Mikko wrote:
On 2024-09-05 13:24:20 +0000, olcott said:
On 9/5/2024 2:34 AM, Mikko wrote:
On 2024-09-03 13:00:50 +0000, olcott said:
On 9/3/2024 5:25 AM, Mikko wrote:
On 2024-09-02 16:38:03 +0000, olcott said:
>
A halt decider is a Turing machine that computes the mapping from
its finite string input to the behavior that this finite string
specifies.
>
A halt decider needn't compute the full behaviour, only whether
that behaviour is finite or infinite.
>
New slave_stack at:1038c4 Begin Local Halt Decider Simulation
>
Local Halt Decider: Infinite Recursion Detected Simulation Stopped
>
Hence HHH(DDD)==0 is correct
>
Nice to see that you don't disagree with what said.
Unvortunately I can't agree with what you say.
HHH terminates,
os DDD obviously terminates, too. No valid
>
DDD emulated by HHH never reaches it final halt state.
>
If that iis true it means that HHH called by DDD does not return and
therefore is not a ceicder.
The directly executed HHH is a decider.
What does simulating it change about that?
>
If the simulation is incorrect it may change anything.
>
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
>
However, a correct simultation faithfully imitates the original
behaviour.
>
>
_DDD()
[00002172] 55 push ebp ; housekeeping
[00002173] 8bec mov ebp,esp ; housekeeping
[00002175] 6872210000 push 00002172 ; push DDD
[0000217a] e853f4ffff call 000015d2 ; call HHH(DDD)
[0000217f] 83c404 add esp,+04
[00002182] 5d pop ebp
[00002183] c3 ret
Size in bytes:(0018) [00002183]
>
A correct emulation obeys the x86 machine code even
if this machine code catches the machine on fire.
>
It is impossible for an emulation of DDD by HHH to
reach machine address 00002183 AND YOU KNOW IT!!!
>
>
It seems olcott also knows that HHH fails to reach the machine address 00002183, because it stop the simulation too soon.
>
No the issue is the you insist on remaining too stupid
to understand unreachable code.
>
void Infinite_Recursion()
{
Infinite_Recursion();
OutString("Can't possibly get here!");
>
Olcott keeps dreaming of infinite recursions, even when HHH aborts after two cycles. Two is not infinite.
>
>
Yet in this same way Infinite_Recursion() itself
it not infinite when HHH aborts it in two cycles.
>
What makes Infinite_Recursion() non-halting even
when it stops being emulated is that it cannot
possibly reach past its own first instruction.
That
int main(void) {
Infinite_Recursion();
return 0;
}
never returns makes Infinite_Recursion non-halting.
void DDD()
{
HHH(DDD);
return;
}
int main(void) {
HHH(DDD);
return 0;
}
The fact that DDD emulated by HHH never returns
makes DDD() non-halting.
-- Copyright 2024 Olcott "Talent hits a target no one else can hit; Geniushits a target no one else can see." Arthur Schopenhauer
Defining a correct simulating halt decider
Re: Defining a correct simulating halt decider
