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From: olcott <polcott333@gmail.com>
Newsgroups: comp.theory
Subject: Re: DDD correctly emulated by EEE --- Correct Emulation Defined
Date: Mon, 24 Mar 2025 09:08:27 -0500
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On 3/24/2025 2:30 AM, Mikko wrote:
> On 2025-03-23 17:10:48 +0000, olcott said:
> 
>> On 3/23/2025 4:11 AM, Mikko wrote:
>>> On 2025-03-23 03:57:30 +0000, olcott said:
>>>
>>>> On 3/22/2025 9:53 PM, Richard Damon wrote:
>>>>> On 3/22/25 2:00 PM, olcott wrote:
>>>>>> On 3/22/2025 12:34 PM, Richard Damon wrote:
>>>>>>> On 3/22/25 10:52 AM, olcott wrote:
>>>>>>>> _DD()
>>>>>>>> [00002133] 55         push ebp      ; housekeeping
>>>>>>>> [00002134] 8bec       mov ebp,esp   ; housekeeping
>>>>>>>> [00002136] 51         push ecx      ; make space for local
>>>>>>>> [00002137] 6833210000 push 00002133 ; push DD
>>>>>>>> [0000213c] e882f4ffff call 000015c3 ; call EEE(DD)
>>>>>>>> [00002141] 83c404     add esp,+04
>>>>>>>> [00002144] 8945fc     mov [ebp-04],eax
>>>>>>>> [00002147] 837dfc00   cmp dword [ebp-04],+00
>>>>>>>> [0000214b] 7402       jz 0000214f
>>>>>>>> [0000214d] ebfe       jmp 0000214d
>>>>>>>> [0000214f] 8b45fc     mov eax,[ebp-04]
>>>>>>>> [00002152] 8be5       mov esp,ebp
>>>>>>>> [00002154] 5d         pop ebp
>>>>>>>> [00002155] c3         ret
>>>>>>>> Size in bytes:(0035) [00002155]
>>>>>>>>
>>>>>>>> When finite integer N instructions of the above x86
>>>>>>>> machine language DD are emulated by each x86 emulator
>>>>>>>> EEE[N] at machine address [000015c3] according to the
>>>>>>>> semantics of the x86 language no DD ever reaches its own
>>>>>>>> "ret" instruction at machine address [00002155] and
>>>>>>>> terminates normally.
>>>>>>>>
>>>>>>>
>>>>>>> Your can't emulate the above code for N > 4, as you get into 
>>>>>>> undefine memory.
>>>>>>>
>>>>>>
>>>>>> I have already addressed this objection dozens of times.
>>>>>>
>>>>>
>>>>> No you haven't. You have given several different LIES about it.
>>>>>
>>>>> As I have pointed out, if you don't include Halt7.c as part of the 
>>>>> definition, then you can't do it as you are looking at undefined 
>>>>> memory.
>>>>>
>>>>
>>>> Your lack of technical competence is showing.
>>>> (1) We are talking about a hypothetical infinite
>>>> set of pure x86 emulators that have no decider code.
>>>>
>>>> (2) The memory space of x86 machine code is not
>>>> in the C source file, it is in the object file.
>>>
>>> It isn't in the object file, either. Only the initial values of some
>>> memory locations are there. The object file does not even specify
>>> where in the memory space those locations are. The execution of a
>>> program requires a memory space larger than the object file.
>>>
>>
>> I patch the Halt7.obj file so that functions
>> are at a fixed address. This file is never linked.
> 
> Doesn't affect the fact that important parts of the memory space are not
> containted in the object file.
> i

Richard stupidly complained that III could not call EEE
because he stupidly believed that there were in different
memory spaces.

-- 
Copyright 2025 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer