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From: dbush <dbush.mobile@gmail.com>
Newsgroups: comp.theory
Subject: Re: Halting Problem: What Constitutes Pathological Input
Date: Tue, 6 May 2025 15:35:03 -0400
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On 5/6/2025 2:47 PM, olcott wrote:
> On 5/6/2025 7:14 AM, dbush wrote:
>> On 5/6/2025 1:54 AM, olcott wrote:
>>> On 5/6/2025 12:49 AM, Richard Heathfield wrote:
>>>> On 06/05/2025 00:29, olcott wrote:
>>>>
>>>> <snip>
>>>>
>>>>>
>>>>> It is the problem incorrect specification that creates
>>>>> the contradiction.
>>>>
>>>> Not at all. The contradiction arises from the fact that it is not 
>>>> possible to construct a universal decider.
>>>>
>>>>> Everyone here insists that functions computed
>>>>> by models of computation can ignore inputs and
>>>>> base their output on something else.
>>>>
>>>> I don't think anyone's saying that.
>>>>
>>>> Maybe you don't read so well.
>>>>
>>>
>>> What are the exact steps for DD to be emulated by HHH
>>> according to the semantics of the x86 language?
>>> *Only an execution trace will do*
>>
>> The exact same steps for DD to be emulated by UTM.
>>
> 
> _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]
> 
> Machine address by machine address specifics
> that you know that you cannot provide because
> you know that you are wrong.
> 

HHH and UTM emulate DD exactly the same up until the point that HHH 
aborts, making the last instruction emulated by HHH wrong, as you have 
admitted on the record:


On 5/5/2025 8:24 AM, dbush wrote:
 > On 5/4/2025 11:03 PM, dbush wrote:
 >> On 5/4/2025 10:05 PM, olcott wrote:
 >>> On 5/4/2025 7:23 PM, Richard Damon wrote:
 >>>> But HHH doesn't correct emulated DD by those rules, as those rules
 >>>> do not allow HHH to stop its emulation,
 >>>
 >>> Sure they do you freaking moron...
 >>
 >> Then show where in the Intel instruction manual that the execution of
 >> any instruction other than a HLT is allowed to stop instead of
 >> executing the next instruction.
 >>
 >> Failure to do so in your next reply, or within one hour of your next
 >> post on this newsgroup, will be taken as you official on-the-record
 >> admission that there is no such allowance and that HHH does NOT
 >> correctly simulate DD.
 >
 > Let the record show that Peter Olcott made the following post in this
 > newsgroup after the above message:
 >
 > On 5/4/2025 11:04 PM, olcott wrote:
 >  > D *WOULD NEVER STOP RUNNING UNLESS*
 >  > indicates that professor Sipser was agreeing
 >  > to hypotheticals AS *NOT CHANGING THE INPUT*
 >  >
 >  > You are taking
 >  > *WOULD NEVER STOP RUNNING UNLESS*
 >  > to mean *NEVER STOPS RUNNING* that is incorrect.
 >
 > And has made no attempt after over 9 hours to show where in the Intel
 > instruction manual that execution is allowed to stop after any
 > instruction other than HLT.
 >
 > Therefore, as per the above criteria:
 >
 > LET THE RECORD SHOW
 >
 > That Peter Olcott
 >
 > Has *officially* admitted
 >
 > That DD is NOT correctly simulated by HHH