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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: comp.theory
Subject: Re: DD correctly emulated by HHH --- Totally ignoring invalid rebuttals
Date: Fri, 7 Mar 2025 10:26:06 +0200
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On 2025-03-06 20:11:34 +0000, olcott said:

> On 3/6/2025 2:02 AM, Mikko wrote:
>> On 2025-03-04 14:26:39 +0000, olcott said:
>> 
>>> On 3/4/2025 4:36 AM, Mikko wrote:
>>>> On 2025-03-04 03:07:56 +0000, olcott said:
>>>> 
>>>>> int DD()
>>>>> {
>>>>>    int Halt_Status = HHH(DD);
>>>>>    if (Halt_Status)
>>>>>      HERE: goto HERE;
>>>>>    return Halt_Status;
>>>>> }
>>>>> 
>>>>> _DD()
>>>>> [00002133] 55         push ebp      ; housekeeping
>>>>> [00002134] 8bec       mov ebp,esp   ; housekeeping
>>>>> [00002136] 51         push ecx      ; make space for local
>>>>> [00002137] 6833210000 push 00002133 ; push DD
>>>>> [0000213c] e882f4ffff call 000015c3 ; call HHH(DD)
>>>>> [00002141] 83c404     add esp,+04
>>>>> [00002144] 8945fc     mov [ebp-04],eax
>>>>> [00002147] 837dfc00   cmp dword [ebp-04],+00
>>>>> [0000214b] 7402       jz 0000214f
>>>>> [0000214d] ebfe       jmp 0000214d
>>>>> [0000214f] 8b45fc     mov eax,[ebp-04]
>>>>> [00002152] 8be5       mov esp,ebp
>>>>> [00002154] 5d         pop ebp
>>>>> [00002155] c3         ret
>>>>> Size in bytes:(0035) [00002155]
>>>>> 
>>>>> DD correctly emulated by HHH cannot possibly
>>>>> reach its own "ret" instruction and terminate normally.
>>>>> 
>>>>> The only valid rebuttal is to show all of the steps of
>>>>> exactly how DD correctly emulated by HHH reaches its
>>>>> own "ret" instruction.
>>>> 
>>>> The question whether DD emulated by HHH exists is too uninteresting that
>>>> it would need a rebuttal, and so is the question that does it reach its
>>>> "ret" instruction if it exsists.
>>>> 
>>> 
>>> DD correctly emulated by HHH cannot possibly
>>> reach its own "ret" instruction and terminate normally.
>>> *Proves that the input to HHH(DD) can be rejected as non-halting*
>> 
>> As "DD correctly emulated by HHH" does not exist
> 
> *No one has made any attempt to show that*

Maybe not. Perhaps every demonstration of that was just a byproduct of
some other attempt. Anyway, HHH does not emulate DD correctly to the end.

-- 
Mikko