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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: comp.lang.c,comp.lang.c++
Subject: Re: Can someone please verify the execution trace of this?
Date: Mon, 20 May 2024 14:05:01 -0700
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On 5/20/2024 1:52 PM, olcott wrote:
> On 5/20/2024 3:38 PM, Chris M. Thomasson wrote:
>> On 5/20/2024 1:36 PM, olcott wrote:
>>> On 5/20/2024 3:32 PM, Chris M. Thomasson wrote:
>>>> On 5/20/2024 1:31 PM, Chris M. Thomasson wrote:
>>>>> On 5/20/2024 1:30 PM, olcott wrote:
>>>>>> On 5/20/2024 3:19 PM, Chris M. Thomasson wrote:
>>>>>>> On 5/20/2024 1:10 PM, olcott wrote:
>>>>>>>> On 5/20/2024 3:04 PM, Chris M. Thomasson wrote:
>>>> [...]
>>>>>>> So, you created a simulator for x86? 32-bit I am assuming. Fwiw, 
>>>>>>> I am interested on how you simulate the cmpxchg8b and/or the 
>>>>>>> cmpxchg16b functions?
>>>>>>>
>>>>>>
>>>>>> I use libx86emu providing an interface so that any C function
>>>>>> can simulate any other C function in debug step mode. The
>>>>>> original H can even simulated itself simulating P.
>>>>>
>>>>> Can you show me a sample H? Is H a little program?
>>>> [...]
>>>>
>>>> I notice this:
>>>>
>>>>
>>>> typedef int (*ptr)();  // ptr is pointer to int function
>>>> 00 int H(ptr p, ptr i);
>>>> 01 int D(ptr p)
>>>> 02 {
>>>> 03   int Halt_Status = H(p, p);
>>>> 04   if (Halt_Status)
>>>> 05     HERE: goto HERE;
>>>> 06   return Halt_Status;
>>>> 07 }
>>>> 08
>>>> 09 int main()
>>>> 10 {
>>>> 11   H(D,D);
>>>> 12   return 0;
>>>> 13 }
>>>>
>>>> But, where is H?
>>>>
>>>
>>> *IF YOU NEED TO RE0READ THIS 500 TIMES TO GET IT PLEASE DO*
>>> *IF YOU NEED TO RE0READ THIS 500 TIMES TO GET IT PLEASE DO*
>>> *IF YOU NEED TO RE0READ THIS 500 TIMES TO GET IT PLEASE DO*
>>
>> I still cannot find even a simple example definition of H.
>>
> 
> THIS IS 100% OF ALL OF THE REQUIREMENTS FOR H
> H correctly simulates D with an x86 emulator.
> everything else about H is wide open.
> 
> H plays a game of tic-tac-toe and then
> H correctly simulates D with an x86 emulator.
> 
> Have you ever heard of infinite sets?

Ever heard of the natural numbers?


> Of everyone in the world that has a mole
> exactly where is this mole on their body?

So, are you creating a halt decider that is correct or not? If not, 
what's the damn point?


> 
>>>
>>> Every element of an infinite set of H/D pairs matching the above
>>> template where H correctly simulates 1 to ∞ steps of D thus including

So, it can simulate to infinity, then tell you an answer?



>>> 0 to ∞ recursive simulations of H simulating itself simulating D.
>>> *D correctly simulated by H never reaches its own line 06 and halts*
>>>
>>
>