Re: Defining a correct simulating halt decider

On 9/11/2024 11:23 AM, Fred. Zwarts wrote:

Op 11.sep.2024 om 13:49 schreef olcott:

On 9/10/2024 6:50 AM, Fred. Zwarts wrote:

Op 09.sep.2024 om 20:19 schreef olcott:

On 9/8/2024 9:53 AM, Mikko wrote:

On 2024-09-07 13:57:00 +0000, olcott said:
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On 9/7/2024 3:29 AM, Mikko wrote:

On 2024-09-07 05:12:19 +0000, joes said:
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Am Fri, 06 Sep 2024 06:42:48 -0500 schrieb olcott:

On 9/6/2024 6:19 AM, Mikko wrote:

On 2024-09-05 13:24:20 +0000, olcott said:

On 9/5/2024 2:34 AM, Mikko wrote:

On 2024-09-03 13:00:50 +0000, olcott said:

On 9/3/2024 5:25 AM, Mikko wrote:

On 2024-09-02 16:38:03 +0000, olcott said:
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A halt decider is a Turing machine that computes the mapping from
its finite string input to the behavior that this finite string
specifies.

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A halt decider needn't compute the full behaviour, only whether
that behaviour is finite or infinite.
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New slave_stack at:1038c4 Begin Local Halt Decider Simulation

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Local Halt Decider: Infinite Recursion Detected Simulation Stopped
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Hence  HHH(DDD)==0 is correct

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Nice to see that you don't disagree with what said.
Unvortunately I can't agree with what you say.
HHH terminates,
os DDD obviously terminates, too. No valid

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DDD emulated by HHH never reaches it final halt state.

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If that iis true it means that HHH called by DDD does not return and
therefore is not a ceicder.

The directly executed HHH is a decider.

What does simulating it change about that?

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If the simulation is incorrect it may change anything.
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PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR
PATHOLOGICAL RELATIONSHIPS CHANGE BEHAVIOR

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However, a correct simultation faithfully imitates the original
behaviour.
>

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_DDD()
[00002172] 55         push ebp      ; housekeeping
[00002173] 8bec       mov ebp,esp   ; housekeeping
[00002175] 6872210000 push 00002172 ; push DDD
[0000217a] e853f4ffff call 000015d2 ; call HHH(DDD)
[0000217f] 83c404     add esp,+04
[00002182] 5d         pop ebp
[00002183] c3         ret
Size in bytes:(0018) [00002183]
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A correct emulation obeys the x86 machine code even
if this machine code catches the machine on fire.
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It is impossible for an emulation of DDD by HHH to
reach machine address 00002183 AND YOU KNOW IT!!!
>

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It seems olcott also knows that HHH fails to reach the machine address 00002183, because it stop the simulation too soon.

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No the issue is the you insist on remaining too stupid
to understand unreachable code.
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void Infinite_Recursion()
{
   Infinite_Recursion();
   OutString("Can't possibly get here!");

 Olcott keeps dreaming of infinite recursions, even when HHH aborts after two cycles. Two is not infinite.
 

Yet in this same way Infinite_Recursion() itself
it not infinite when HHH aborts it in two cycles.
What makes Infinite_Recursion() non-halting even
when it stops being emulated is that it cannot
possibly reach past its own first instruction.
--
Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer