> On 26 May 2019, at 08:07, Yanghao Hua <yanghao...@gmail.com> wrote:
>
> On Sun, May 26, 2019 at 12:04 AM David Mertz <me...@gnosis.cx> wrote:
>>
>> I don't really understand HDL/Verilog, but I've worked with people who do.
>> In fact, I even wrote a pre-processor that transformed the same DSL to
>> Python, C++, and Verilog.
>>
>> In my mind, the HDL use case is FAR too narrow and specialized to warrant a
>> new arrow operator, let an entirely new parser and semantics around
>> arbitrary operators. There are several existing dunders that could plausibly
>> be repurposed already (<<, <<=, <=, etc). Those might look sightly different
>> than the verilog operators, but that's a very small price. In fact, just
>> using attributes and assignment is an incredibly low bar too, and allows
>> whatever overriding you wish.
>
> Well, depends on how we define narrow ... you are writing probably
> this email on a HDL designed machine ... and the entire world is
> powered by HDL designed silicons. that is not small for me at all.
I think you are confusing the number of people that use HDL with the amount of
product created.
Also I was under the impression that HDL tools exist already that are
considered usable and yet do not need python.
What is the problem that you aim to solve with a python HDL tool?
If the syntax of the HDL is so important I do not understand why you do not
write a parser for the HDL and
build the run-time model in python. Then run the model - no new syntax required.
For any non-trivia hardware I'm finding it hard to believe that python will run
fast enough to be useful.
What is it that I'm missing?
>
>> I just don't buy the idea that such a DSL can only be useful if it spells
>> 'abc <== message' and useless if it spelled the same thing as 'abc <<=
>> message'.
>
> So you don't find this is confusing?
>
> signal <<= 5 # does it mean left shifting signal or assigning 5 to signal??
>
> I really do think it is confusing.
Isn't that a matter of familiarity with HDL? Many people replying are not
familiar with HDL.
Barry
_______________________________________________
Python-ideas mailing list
Python-ideas@python.org
https://mail.python.org/mailman/listinfo/python-ideas
Code of Conduct: http://python.org/psf/codeofconduct/
