Re: Proof that DD correctly simulated by HH provides the correct halt status criteria

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Sujet : Re: Proof that DD correctly simulated by HH provides the correct halt status criteria
De : mikko.levanto (at) *nospam* iki.fi (Mikko)
Groupes : comp.theory
Date : 09. Jun 2024, 09:23:56
Autres entêtes
Organisation : -
Message-ID : <v43lac$3a1cg$1@dont-email.me>
References : 1 2 3
User-Agent : Unison/2.2
On 2024-06-08 12:27:09 +0000, olcott said:

On 6/8/2024 12:53 AM, Mikko wrote:
On 2024-06-07 21:48:57 +0000, olcott said:
 
*That no counter-example to the following exists proves that it is true*
 Not wihout a proof that no counter-example exists.
 
 I incorporate by reference
(a) The x86 language
(b) The notion of an x86 emulator
 (c) I provide this complete function
 void DDD(int (*x)())
{
   HH(x, x);
}
 _DDD()
[00001de2] 55         push ebp
[00001de3] 8bec       mov ebp,esp
[00001de5] 8b4508     mov eax,[ebp+08]
[00001de8] 50         push eax         ; push DD
[00001de9] 8b4d08     mov ecx,[ebp+08]
[00001dec] 51         push ecx         ; push DD
[00001ded] e890f5ffff call 00001382    ; call HH
[00001df2] 83c408     add esp,+08
[00001df5] 5d         pop ebp
[00001df6] c3         ret
Size in bytes:(0021) [00001df6]
 Then I state that No DDD correctly emulated by any
x86 emulator H can possibly reach its own [00001df6]
instruction.
 To anyone having this mandatory prerequisite knowledge
(perhaps not you) every x86 emulation of DDD by any
x86 emulator H continually repeats the first seven lines
of DDD until it crashes due to out-of-memory error.
 Try and show that the above sequence is incorrect, you
cannot because it is correct.
OK. Tell us when you have a proof with that incorporated.
--
Mikko

Date Sujet#  Auteur
10 Nov 24 o 

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