On 5/24/2019 4:25 PM, Yanghao Hua wrote:
On Fri, May 24, 2019 at 5:45 PM Terry Reedy <tjre...@udel.edu> wrote:
What I understand is that you are doing discrete-time hardware
simulation and that you need a operator that will schedule future
assigments to int-like objects. Have you considered using '@' to do
that? int @ int-expression is currently invalid, so defining it will
not interfere with other int operations. What am I not understanding?
I am not sure if I understood this. The intention is to e.g. assign a
signal with a value in a nature way, e.g. signal <== 5, are you saying
to replace <== with @?
That is what i meant, but reading
> I really really would like either a equal sign
suggests '@=' as a better alternative. (I am not sure if the
implementation would be equally easy or hard.) How does 'signal @= 5' look?
Either is pragmatic in that these exist since a few versions ago, and
cannot interfere with existing integer expressions, rather than in the
far very hypothetical future.
> not really intuitive though
'@' means 'at' and you want to make the assignment 'at the next time
mark' (or whatever you call it). This is more intuitive to me than
seeing '@' as 'matrix-multiply' because 'matrix' contains 'at'.
When we added @, it was known and intended that it could serve other
then unknown uses.
--
Terry Jan Reedy
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