Re: [myhdl-list] VHDL converted ConcatSignal

[Josy B. <jos...@gm...>]

> > 3. I don't have the issue when taking a subscript instead of a slice,
> > and neither should you because a single bit from either a signed or an
> > unsigned still is a std_logic.
> 
> Yes, I think I was wrong on this - the problem was a zero length vector, 
> which Python is quite happy with but Vivado baulks at (I assume because 
> it's invalid VHDL or something).

A zero-length vector is invalid VHDL, and perhaps we should have MyHDL 
complain about that too? But how do you fabricate a zero-length vector in 
MyHDL?

Regards,

Josy