Sujet : Re: D correctly simulated by H proved for THREE YEARS ---
De : noreply (at) *nospam* example.com (joes)
Groupes : comp.theoryDate : 10. Jun 2024, 17:25:19
Autres entêtes
Organisation : i2pn2 (i2pn.org)
Message-ID : <v475sv$3ipmi$2@i2pn2.org>
References : 1 2 3
User-Agent : Pan/0.145 (Duplicitous mercenary valetism; d7e168a git.gnome.org/pan2)
Am Mon, 10 Jun 2024 09:36:09 -0500 schrieb olcott:
On 6/10/2024 3:35 AM, joes wrote:
Am Sun, 09 Jun 2024 22:54:52 -0500 schrieb olcott:
On 5/29/2021 2:26 PM, olcott wrote:
THE ONLY POSSIBLE WAY for D simulated by H to have the same behavior
as the directly executed D(D) is for the instructions of D to be
incorrectly simulated by H (details provided below).
The only correct simulation must simulate incorrectly? Wat.
In order for D simulated by H to have the same behavior as the
directly executed D(D) H must ignore the instruction at machine
address [00000d07]. *That is an incorrect simulation of D*
I don't understand. Does D(D) ignore the call to H(D,D)?
H does not ignore that instruction and simulates itself simulating D.
The simulated H outputs its own execution trace of D.
The directly executed D(D) reaps the benefit of D simulated by
H proving that *its input never halts*
Begin Local Halt Decider Simulation at Machine Address:cfc
..[00000cfc][00211839][0021183d](01) 55 push ebp
..[00000cfd][00211839][0021183d](02) 8bec mov ebp,esp
..[00000cff][00211839][0021183d](03) 8b4508 mov eax,[ebp+08]
..[00000d02][00211835][00000cfc](01) 50 push eax ; push D
..[00000d03][00211835][00000cfc](03) 8b4d08 mov ecx,[ebp+08]
..[00000d06][00211831][00000cfc](01) 51 push ecx ; push D
..[00000d07][0021182d][00000d0c](05) e800feffff call 00000b0c ; call H
This call to H is simulated H.
We can tell that it is the simulated H is providing this trace because
it has a different virtual machine stack.
*The simulated H derives this execution trace of D*
machine stack stack machine assembly address
address data code language ======== ========
======== =============== =============
..[00000cfc][0025c261][0025c265](01) 55 push ebp
..[00000cfd][0025c261][0025c265](02) 8bec mov ebp,esp
..[00000cff][0025c261][0025c265](03) 8b4508 mov eax,[ebp+08]
..[00000d02][0025c25d][00000cfc](01) 50 push eax ; push D
..[00000d03][0025c25d][00000cfc](03) 8b4d08 mov ecx,[ebp+08]
..[00000d06][0025c259][00000cfc](01) 51 push ecx ; push D
..[00000d07][0025c255][00000d0c](05) e800feffff call 00000b0c ; call H
Infinitely Nested Simulation Detected Simulation Stopped
Because the H(D,D) that D(D) calls recognizes the its input
DOES NOT HALT, it aborts the simulation of this input causing
the directly executed D(D) to halt.
How can H report "non-halting" when D(D) halts?
I proved that D simulated by H can only have the same behavior as the
directly executed D(D) when D is simulated by H incorrectly.
You've got it the wrong way around. A simulation must have the same
behaviour.
-- joes