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From: olcott <polcott333@gmail.com>
Newsgroups: comp.theory
Subject: Re: DDD specifies recursive emulation to HHH and halting to HHH1
Date: Sat, 29 Mar 2025 10:36:40 -0500
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On 3/29/2025 3:41 AM, Fred. Zwarts wrote:
> Op 28.mrt.2025 om 19:56 schreef olcott:
>> On 3/27/2025 5:01 PM, joes wrote:
>>> Am Thu, 27 Mar 2025 12:50:12 -0500 schrieb 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:
>>>
>>>>>>> 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.
>>
>>> That is exactly what it does, and you have said so before(tm).
>>>
>>
>> You are saying that HHH is reporting that HHH is screwing
>> up THAT IS FALSE. HHH IS REPORTING THAT DDD IS SCREWING UP.
> 

_DDD()
[00002163] 55         push ebp      ; housekeeping
[00002164] 8bec       mov ebp,esp   ; housekeeping
[00002166] 6863210000 push 00002163 ; push DDD
[0000216b] e853f4ffff call 000015c3 ; call HHH(DDD)
[00002170] 83c404     add esp,+04
[00002173] 5d         pop ebp
[00002174] c3         ret
Size in bytes:(0018) [00002174]

> Does not matter how you call it, 

It 100% totally does matter that DDD specifies non-halting
behavior when emulated by HHH according to the semantics of
the x86 language. That HHH DOES CORRECTLY DECIDE NON HALTING
MATTERS THE MOST.

> but HHH (correctly) reports that it 
> could not reach the end of the simulation. Exactly the same finite 
> string does not give problems for direct execution or world-class 
> simulators to reach this end.
> 
> 


-- 
Copyright 2025 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer