Re: [myhdl-list] shadow signal signals signed instead of unsigned

[Christopher F. <chr...@gm...>]

<snip>
> After seeing the posting by Raman Muthukishnan
>   On shadow signals how would you modify the code to have an array of signed signals rather than unsigned.
<snip>

In [35]: x = Signal(intbv(-7, min=-32, max=32))

# bit access
In [36]: x[4:0]
Out[36]: intbv(9L)

In [37]: x[4:0].signed()
Out[37]: -7L


# shadow signal
In [39]: x(4,0)
Out[39]: Signal(intbv(9L))
In [40]: x(4,0).signed()
Out[40]: -7L

Note, you would want to make the shadow signal:

    slc = x(4,0)

and then when assigning get the signed vers

    #...
    y = slc.signed()

Hope that helps,
Chris