Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: dbush <dbush.mobile@gmail.com>
Newsgroups: comp.theory
Subject: Re: DD correctly emulated by HHH --- Totally ignoring invalid
 rebuttals
Date: Tue, 4 Mar 2025 09:38:05 -0500
Organization: A noiseless patient Spider
Lines: 48
Message-ID: <vq738b$1sgf7$2@dont-email.me>
References: <vq5qqc$1j128$2@dont-email.me> <vq6l3k$1r2p8$1@dont-email.me>
 <vq72iv$1tapm$3@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Injection-Date: Tue, 04 Mar 2025 15:38:04 +0100 (CET)
Injection-Info: dont-email.me; posting-host="78d928a9a400af2e1a99aa5e831e2fe9";
	logging-data="1982951"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/khdirAtoc7j/UTSN9wQvK"
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:qC89GjLoSMGLCxkK5eOETpmaJmg=
In-Reply-To: <vq72iv$1tapm$3@dont-email.me>
Content-Language: en-US
Bytes: 2940

On 3/4/2025 9:26 AM, olcott wrote:
> 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*
> 

And if we assume, as you said, that replacing the code of HHH with an 
unconditional simulator and running HHH(DD) does not halt, then what?