From: clubley@remove_me.eisner.decus.org-Earth.UFP

On 2025-04-11, Arne Vajhøj  wrote:
> On 4/8/2025 1:27 PM, Simon Clubley wrote:
>> On 2025-04-08, Arne Vajhøj  wrote:
>>> On 4/8/2025 8:20 AM, Simon Clubley wrote:
>>>>
>>>> It's a lot more complicated than that.
>>>>
>>>> For example, take a LL(1) RD parser. Even ignoring the processing
>>>> of the results from the parser, how much code (and how much effort)
>>>> do you think it would take to implement it in Macro-32 compared to C ?
>>>
>>> Still not obvious to me that it would not follow normal LOC/FP
>>> ratios.
>>
>> Try implementing one, especially with a reasonably sized grammar, and
>> you will very rapidly understand that it is not as simple as you seem
>> to think it is. :-)
>
> I have not made any claim about it being simple.
>
> I have made a claim that the ratio for LOC/FP for Macro-32
> and LOC/FP for C for such a problem would not be significantly
> different from other application types.
>

That claim is clearly incorrect.

The amount of Macro-32 code required for something higher-level such
as a RD parser that can be concisely expressed in C compared to assembly
language is clearly greater than, say a device driver, where the device
access and programming sequence is the same regardless of whether it
is done in C or assembly language.

You cannot even optimise the register access sequence in a C device driver
to reduce the amount of code, (and you even have to use volatile variables
so the compiler doesn't do it for you behind your back.)

>>> Effort is a different issue. If someone said:
>>>
>>> x1.6 LOC
>>> x16 hours for initial write of code
>>> x160 hours for maintenance of code
>>>
>>> then I would consider it likely.
>>>
>>> It has been hinted a few time that the DCL code is not easy to
>>> understand and modify.
>>>
>>
>> As I mentioned above, this is no longer about DCL. I picked the above
>> standalone example, a LL(1) RD parser, because it's a really good example
>> of the different scale of effort involved in writing it in Macro-32
>> instead of in C.
>
> I have not made any claim about effort either.
>
> Are you sure that you have understood the topic??
>

Yes, but it's not clear if you have Arne.

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.

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