Re: Ben Bacarisse fails understand that deciders COMPUTE THE MAPPING FROM INPUTS

Op 30.aug.2024 om 15:05 schreef olcott:

On 8/30/2024 3:32 AM, Fred. Zwarts wrote:

Op 29.aug.2024 om 23:13 schreef olcott:

>
One cannot simply ignore the actual behavior of DDD emulated
by HHH according to the semantics of the x86 language because
this actual behavior is not the behavior that one expects or
one would like to have.

>
You cannot deny the semantics of the x86 language simply because you do not like it, or you prefer another behaviour.
The specification of the semantics of the x86 language does not give room for a context depending interpretation. It is independent on which processor, or which simulator processes this finite string.
>

 *This is before any aborting occurs*
*This is before any aborting occurs*
*This is before any aborting occurs*
 The behavior of
the directly executed DDD and executed HHH
is different from the behavior of
the emulated DDD and the emulated HHH

Not according to the unmodified world calls simulator, which, when given the same input shows that the DDD based on the aborting HHH, halts.

 and all four of them are emulated by the world
class x86 emulator libx86emu
 It is easy to see that when the executed HHH emulates
DDD that it does this correctly when we look at the
execution trace and see the the first four instructions
of DDD are listed.
 _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]
 New slave_stack at:1038c4
Begin Local Halt Decider Simulation   Execution Trace Stored at:1138cc
[00002172][001138bc][001138c0] 55         push ebp      ; housekeeping
[00002173][001138bc][001138c0] 8bec       mov ebp,esp   ; housekeeping
[00002175][001138b8][00002172] 6872210000 push 00002172 ; push DDD
[0000217a][001138b4][0000217f] e853f4ffff call 000015d2 ; call HHH(DDD)
New slave_stack at:14e2ec
[00002172][0015e2e4][0015e2e8] 55         push ebp      ; housekeeping
[00002173][0015e2e4][0015e2e8] 8bec       mov ebp,esp   ; housekeeping
[00002175][0015e2e0][00002172] 6872210000 push 00002172 ; push DDD
[0000217a][0015e2dc][0000217f] e853f4ffff call 000015d2 ; call HHH(DDD)
Local Halt Decider: Infinite Recursion Detected Simulation Stopped
 Then this emulated DDD calls an emulated HHH(DDD).
It is easy to see that when the executed HHH emulates
itself emulated DDD that it does this correctly when we
look at the execution trace and see the the first four
instructions of DDD are listed again.
 

And after a few recursions HHH sees a 'special condition' after which it aborts and halt. This abort takes place before the simulated HHH would see the same 'special condition' after which it would abort and halt.
This shows that the modified world class emulator claims a different behaviour than the simulator modified by olcott. Guess which one is right.