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From: olcott
Newsgroups: comp.theory,sci.logic
Subject: Re: DDD correctly emulated by H0
Date: Tue, 25 Jun 2024 08:16:51 -0500
Organization: A noiseless patient Spider
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On 6/25/2024 4:22 AM, joes wrote:
> Am Sat, 22 Jun 2024 13:47:24 -0500 schrieb olcott:
>> On 6/22/2024 1:39 PM, Fred. Zwarts wrote:
>>> Op 21.jun.2024 om 15:21 schreef olcott:
>
>> When we stipulate that the only measure of a correct emulation is the
>> semantics of the x86 programming language then we see that when DDD is
>> correctly emulated by H0 that its call to H0(DDD) cannot possibly
>> return.
> Yes. Which is wrong, because H0 should terminate.
>
typedef void (*ptr)();
int H0(ptr P);
void DDD()
{
H0(DDD);
}
int main()
{
H0(DDD);
}
_DDD()
[00002172] 55 push ebp ; housekeeping
[00002173] 8bec mov ebp,esp ; housekeeping
[00002175] 6872210000 push 00002172 ; push DDD
[0000217a] e853f4ffff call 000015d2 ; call H0(DDD)
[0000217f] 83c404 add esp,+04
[00002182] 5d pop ebp
[00002183] c3 ret
Size in bytes:(0018) [00002183]
The call from DDD to H0(DDD) when DDD is correctly emulated
by H0 cannot possibly return.
Until you acknowledge this is true, this is the
only thing that I am willing to talk to you about.
--
Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer