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Path: ...!feed.opticnetworks.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: olcott <polcott333@gmail.com> Newsgroups: comp.theory,sci.logic Subject: Re: D correctly simulated by H proved for THREE YEARS --- Date: Sun, 9 Jun 2024 22:54:52 -0500 Organization: A noiseless patient Spider Lines: 39 Message-ID: <v45tec$4q15$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Mon, 10 Jun 2024 05:54:53 +0200 (CEST) Injection-Info: dont-email.me; posting-host="f6820c6f88a6ab7f47362bcc86c8cb3a"; logging-data="157733"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/W4uW7l78QaVLxcVTY78UV" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:XmBEyT8CPjjh7nmRGdQB2GYs96c= Content-Language: en-US Bytes: 2753 *No one has verified the actual facts of this for THREE YEARS* *No one has verified the actual facts of this for THREE YEARS* *No one has verified the actual facts of this for THREE YEARS* On 5/29/2021 2:26 PM, olcott wrote: https://groups.google.com/g/comp.theory/c/dTvIY5NX6b4/m/cHR2ZPgPBAAJ THE ONLY POSSIBLE WAY for D simulated by H to have the same behavior as the directly executed D(D) is for the instructions of D to be incorrectly simulated by H (details provided below). _D() [00000cfc](01) 55 push ebp [00000cfd](02) 8bec mov ebp,esp [00000cff](03) 8b4508 mov eax,[ebp+08] [00000d02](01) 50 push eax ; push D [00000d03](03) 8b4d08 mov ecx,[ebp+08] [00000d06](01) 51 push ecx ; push D [00000d07](05) e800feffff call 00000b0c ; call H [00000d0c](03) 83c408 add esp,+08 [00000d0f](02) 85c0 test eax,eax [00000d11](02) 7404 jz 00000d17 [00000d13](02) 33c0 xor eax,eax [00000d15](02) eb05 jmp 00000d1c [00000d17](05) b801000000 mov eax,00000001 [00000d1c](01) 5d pop ebp [00000d1d](01) c3 ret Size in bytes:(0034) [00000d1d] In order for D simulated by H to have the same behavior as the directly executed D(D) H must ignore the instruction at machine address [00000d07]. *That is an incorrect simulation of D* H does not ignore that instruction and simulates itself simulating D. The simulated H outputs its own execution trace of D. -- Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer