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From: "Fred. Zwarts" <F.Zwarts@HetNet.nl>
Newsgroups: comp.theory
Subject: Re: DDD specifies recursive emulation to HHH and halting to HHH1
Date: Sat, 29 Mar 2025 10:18:27 +0100
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Op 28.mrt.2025 om 19:45 schreef olcott:
> On 3/28/2025 4:26 AM, Fred. Zwarts wrote:
>> Op 28.mrt.2025 om 00:39 schreef olcott:
>>> On 3/27/2025 2:56 PM, Fred. Zwarts wrote:
>>>> Op 27.mrt.2025 om 18:50 schreef olcott:
>>>>> On 3/27/2025 2:18 AM, Fred. Zwarts wrote:
>>>>>> Op 27.mrt.2025 om 04:09 schreef olcott:
>>>>>>> On 3/26/2025 8:22 PM, Richard Damon wrote:
>>>>>>>
>>>>>>> _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]
>>>>>>>
>>>>>>>> Non-Halting is that the machine won't reach its final staste 
>>>>>>>> even if an unbounded number of steps are emulated. Since HHH 
>>>>>>>> doesn't do that, it isn't showing non-halting.
>>>>>>>>
>>>>>>>
>>>>>>> DDD emulated by any HHH will never reach its final state
>>>>>>> in an unbounded number of steps.
>>>>>>>
>>>>>>> DDD emulated by HHH1 reaches its final state in a finite
>>>>>>> number of steps.
>>>>>>>
>>>>>> It is not very interesting to know whether a simulator reports 
>>>>>> that it is unable to reach the end of the simulation of a program 
>>>>>> that halts in direct execution.
>>>>>
>>>>> That IS NOT what HHH is reporting.
>>>>> HHH correctly rejects DDD because DDD correctly
>>>>> emulated by HHH cannot possibly reach its own
>>>>> final halt state.
>>>>
>>>> Yes, that is the same in other words as rejecting because it could 
>>>> not correctly simulate the input up to its end.
>>>
>>> It doesn't have an end dumb bunny.
>>>
>>
>> Open your eyes. It has an end, 
> 
> Perpetually insisting on the strawman deception
> may get you condemned to actual Hell.
> https://biblehub.com/revelation/21-8.htm
> 
> DDD emulated by HHH according to the semantics of the x86
> language cannot possibly reach it own final halt state.
> 

It is not very interesting to know whether a simulator reports that it 
is unable to reach the end of the simulation of a program that halts in 
direct execution.
It is interesting to know:
'Is there an algorithm that can determine for all possible inputs 
whether the input specifies a program that (according to the semantics 
of the machine language) halts when directly executed?'
This question seems undecidable for Olcott.