Re: PROFESSIONAL floating-point algorithms.

From: Willem (willem_at_stack.nl)
Date: 01/05/04


Date: Mon, 5 Jan 2004 09:43:10 +0000 (UTC)

Edward wrote:
)> Didn't I just explain this to you elsethread ?
)> You used the exact same fallacious logic to attack my point of view.
)> Please pay attention, you're really making a fool of yourself here.
)
) We'll see about that, dear chap.

There's nothing to 'see about'. This statement is about your attack on
*me*, in another post. *You* used the fallacious logic. That makes you
stupid.

) I quote: "that does not mean we are obliged to ignore all we know
) about good programming practice when writing the initial code."
) <bla, bla>

You may want to take some lectures on writing style as well, if you
interpret that as a genuine reverse generalization.

) You might improve your technical communication style to my level. For
) example, note in the above how I always keep the discussion moving
) forward by tight coupling of humor with instruction. I learned this as

Making yourself ridiculous is not humour, nor is attacking and insulting
others. If you see your constant ad hominem attacks as a form of humour,
you are a sad little person.

) I SAID, idiota, that the CPU changes variables by executing IO
) instructions to refresh the memory which is "read mostly". At the
) level of the instruction to "scan for Nul" the search instruction
) accesses RAM but by hardware or firmware which cannot be used by the
) program.

You only have to write the value *once*, then you can read it from memory
in *exactly* the same manner as when you're reading he string itself.

) I SAID, idiota, that you cannot alter the read mostly memory save by
) executing IO commands which are time-consuming.

You *don't* have to alter the memory in every loop.

) People are claiming in this newsgroup to have actual experience with
) small memories but I don't see it in your comments.

I have worked with small memory models. Although it may be preferrable to
recalculate something inside a loop because of memory constraints, it is
*never* faster. It is a size/speed tradeoff.

) Do your own homework. Furthermore, I've described the CPU such that it
) could be simulated.

I did my homework, and I claim that no such CPU exists. Describing a CPU
so that it can be simulated does not make it an existing CPU.

SaSW, Willem

-- 
Disclaimer: I am in no way responsible for any of the statements
            made in the above text. For all I know I might be
            drugged or something..
            No I'm not paranoid. You all think I'm paranoid, don't you !
#EOT


Relevant Pages

  • Re: [PATCH] Mantaining turnstile aligned to 128 bytes in i386 CPUs
    ... :This doesn't contradict your claim since main memory is not really involved. ... that gives the same not-very-real-world cache state for all iterations ... full, and the cpu stalls anyway. ... static instruction order makes it easiest for them, ...
    (freebsd-arch)
  • Re: [PATCH] Mantaining turnstile aligned to 128 bytes in i386 CPUs
    ... :This doesn't contradict your claim since main memory is not really involved. ... that gives the same not-very-real-world cache state for all iterations ... full, and the cpu stalls anyway. ... static instruction order makes it easiest for them, ...
    (freebsd-current)
  • Re: Simple function arguments
    ... are 2 names refering to the same memory location and use that. ... In the internals of a CPU there are various registers. ... address is stored from where the next instruction from memory is read and executed. ... what is generally referred to as 'The stack'. ...
    (comp.lang.cpp)
  • Re: PROFESSIONAL floating-point algorithms.
    ... forward by tight coupling of humor with instruction. ... >) Any CPU that has a slow random access memory for any reason could make ... >) point of failure such that RAM access is slow. ... instructions to refresh the memory which is "read mostly". ...
    (comp.programming)
  • Re: wikipedia article
    ... parallel but skewed by one instruction. ... If the first CPU instruction execution causes a miss, ... memory access. ... distinguish between instruction and data references, ...
    (freebsd-questions)