Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Mikko Newsgroups: comp.theory Subject: Re: DD correctly emulated by HHH --- Totally ignoring invalid rebuttals Date: Thu, 6 Mar 2025 10:02:36 +0200 Organization: - Lines: 52 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Thu, 06 Mar 2025 09:02:37 +0100 (CET) Injection-Info: dont-email.me; posting-host="09aa8f89798e0ee8842c875017492364"; logging-data="3049502"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX189Ug1stS92Yxw2NuW1KBE3" User-Agent: Unison/2.2 Cancel-Lock: sha1:UFC7bAwbsYBXb85ua31KnKmXnOw= Bytes: 2853 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 you can say anything about it. But that does not prove anything about existing things. -- Mikko