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On 8/15/2023 6:07 AM, Mikko wrote:
> On 2023-08-14 14:01:14 +0000, olcott said:
>
>> My point is that the correct behavior to measure is the *input* D
>> correctly simulated by H. For this simulation to be correct it must
>> account for the pathological relationship between D and H.
>
> Looks like an unjusufied minorty opinion. The really correct thing
> to measure is what the problem statement requires to be measured.
>
>> The makes the behavior of D correctly simulated by H different than
>> the behavior of of the *non input* D(D) directly executed in main().
>
> If the beharioour of the simulated D(D) is different from the behaviour
> of real D(D) then the it is not correctly simulated.
>
> Mikko
>
// The following is written in C
//
01 typedef int (*ptr)(); // pointer to int function
02 int H(ptr x, ptr y) // uses x86 emulator to simulate its input
03
04 int D(ptr x)
05 {
06 int Halt_Status = H(x, x);
07 if (Halt_Status)
08 HERE: goto HERE;
09 return Halt_Status;
10 }
11
12 void main()
13 {
14 H(D,D);
15 }
Execution Trace
Line 14: main() invokes H(D,D);
keeps repeating (unless aborted)
Line 06: simulated D(D) invokes simulated H(D,D) that simulates D(D)
Simulation invariant:
D correctly simulated by H cannot possibly reach past its own line 06.
When I prove that you are wrong you simply stop talking because you
never wanted any honest dialogue.
--
Copyright 2023 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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