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From: olcott <polcott333@gmail.com>
Newsgroups: comp.theory
Subject: Re: DD correctly emulated by HHH --- Kicking the straw-man deception
 out on its ass
Date: Sun, 2 Mar 2025 16:28:41 -0600
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On 3/2/2025 4:15 PM, Fred. Zwarts wrote:
> Op 02.mrt.2025 om 22:21 schreef olcott:
>> 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 emulated by HHH according to the behavior that DD
>> specifies cannot possibly reach its own "ret" instruction
>> and terminate normally.
>>
>> This process computes the mapping from the actual input
>> (not any other damn thing) finite string to the non
>> terminating behavior that this finite specifies when
>> it calls its own emulator in recursive emulation.
> 
> In other words 'non terminating behavior' means that *HHH* was unable to 
> reach the 'ret' instruction. 

Not at all. The fact that DD calls its own emulator
makes DD unable to reach its own "ret" instruction.

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