From Newsgroup: comp.lang.c++

On 3/4/2025 9:08 AM, Fred. Zwarts wrote:

Op 04.mrt.2025 om 15:17 schreef olcott:

On 3/4/2025 3:14 AM, Fred. Zwarts wrote:

Op 04.mrt.2025 om 04:07 schreef olcott:

int DD()
{
   int Halt_Status = HHH(DD);
   if (Halt_Status)
     HERE: goto HERE;
   return Halt_Status;
}

_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]

DD correctly emulated by HHH cannot possibly
reach its own "ret" instruction and terminate normally.

I wonder why Olcott keeps repeating that HHH fails to reach the 'ret'
instruction, where the direct execution or world-class simulators
have no problem to reach the 'ret' instruction of exactly the same
finite string as input.

The only valid rebuttal is to show all of the steps of
exactly how DD correctly emulated by HHH reaches its
own "ret" instruction.

And that is exactly what Olcott does not show.

Likewise I never attempt to show exactly how
all squares are round.

So, my claim remains: HHH fails to reach the 'ret' instruction, where
the direct execution and some world-class simulators have no problem to reach it.

DD calls its own emulator when emulated by HHH.
DD DOES NOT call its own emulator when emulated by HHH1.
DD DOES NOT call its own emulator when directly executed.

Assuming that the pathological relationship between HHH
and DD has no effect on the behavior of DD when it is
easily proven that it does IS STUPID.
--
Copyright 2025 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer
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