Re: [myhdl-list] always_comb exception

[Per K. <bas...@gm...>]

I suspect you are running from the interpreter.
That won't work, because MyHDL uses inspection.
Every piece of MyHDL code has to be written to an actual file somewhere (or
at least that's how I understand it).

Cheers
Per


On Wed, Oct 9, 2013 at 7:48 PM, Steve Vejcik <ste...@ea...>wrote:

> Hi Folks - I'm just wetting my feet with myhdl and have run into a problem
> running the simple latch example from the wiki. I'm running python 2.7 with
> myhdl v0.8. If anyone can offer some insight I'd appreciate it. Here's a
> variant of the problem:
>
> def Mux(z, a, b, sel):
>    @always_comb
>    def muxLogic():
>      if sel == 1:
>        z.next = a
>      else:
>        z.next = b
>    return muxLogic
> >>> z, a, b, sel = [Signal(0) for i in range(4)]
> >>> mux_1 = Mux(z,a,b,sel)
>
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "<stdin>", line 2, in Mux
>   File "/usr/local/lib/python2.7/dist-packages/myhdl/_always_comb.py", line
> 64, in always_comb
>     c = _AlwaysComb(func, symdict)
>   File "/usr/local/lib/python2.7/dist-packages/myhdl/_always_comb.py", line
> 185, in __init__
>     s = inspect.getsource(func)
>   File "/usr/lib/python2.7/inspect.py", line 701, in getsource
>     lines, lnum = getsourcelines(object)
>   File "/usr/lib/python2.7/inspect.py", line 690, in getsourcelines
>     lines, lnum = findsource(object)
>   File "/usr/lib/python2.7/inspect.py", line 538, in findsource
>     raise IOError('could not get source code')
> IOError: could not get source code
>
> Steve
>
>
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