[myhdl-list] Interfaces in Interfaces

[Ben R. <be...@re...>]

Hi all,

Is it possible to use interface definitions in interfaces?  For example I
might have an interface for a complex number, and then an interface for a
back-pressured stream of complex numbers that uses the complex number
interface as a component.

e.g.

class Complex(object):

    def __init__(self, width):
        maxval = pow(2, width-1)-1
minval = -pow(2, width-1)
self.real = Signal(intbv(min=minval, max=maxval))
        self.imag = Signal(intbv(min=minval, max=maxval))
self.width = width

class ComplexStream(object):

    def __init__(self, width):
self.data = Signal(Complex(width=width))
        self.valid = Signal(bool(0))
self.last = Signal(bool(0))
        self.ready = Signal(bool(0))
self.width = width

Cheers,
Ben