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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 13:32:57 -0700
Organization: A noiseless patient Spider
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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?