Exemple #1
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	def __init__(self, bits_sign=None, name=None, variable=False, reset=0, name_override=None, min=None, max=None):
		Value.__init__(self)
		
		# determine number of bits and signedness
		if bits_sign is None:
			if min is None:
				min = 0
			if max is None:
				max = 2
			max -= 1 # make both bounds inclusive
			assert(min < max)
			self.signed = min < 0 or max < 0
			self.nbits = builtins.max(bits_for(min, self.signed), bits_for(max, self.signed))
		else:
			assert(min is None and max is None)
			if isinstance(bits_sign, tuple):
				self.nbits, self.signed = bits_sign
			else:
				self.nbits, self.signed = bits_sign, False
		assert(isinstance(self.nbits, int))
		
		self.variable = variable
		self.reset = reset
		self.name_override = name_override
		self.backtrace = tracer.trace_back(name)
Exemple #2
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	def __init__(self, bv=BV(), name=None, variable=False, reset=0, name_override=None):
		assert(isinstance(bv, BV))
		self.bv = bv
		self.variable = variable
		self.reset = Constant(reset, bv)
		self.name_override = name_override
		self.backtrace = tracer.trace_back(name)
Exemple #3
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	def __init__(self, bits_sign=None, name=None, variable=False, reset=0, name_override=None, min=None, max=None, related=None):
		from migen.fhdl.bitcontainer import bits_for

		Value.__init__(self)
		
		# determine number of bits and signedness
		if bits_sign is None:
			if min is None:
				min = 0
			if max is None:
				max = 2
			max -= 1 # make both bounds inclusive
			assert(min < max)
			self.signed = min < 0 or max < 0
			self.nbits = builtins.max(bits_for(min, self.signed), bits_for(max, self.signed))
		else:
			assert(min is None and max is None)
			if isinstance(bits_sign, tuple):
				self.nbits, self.signed = bits_sign
			else:
				self.nbits, self.signed = bits_sign, False
		if not isinstance(self.nbits, int) or self.nbits <= 0:
			raise ValueError("Signal width must be a strictly positive integer")
		
		self.variable = variable # deprecated
		self.reset = reset
		self.name_override = name_override
		self.backtrace = tracer.trace_back(name)
		self.related = related
Exemple #4
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    def __init__(self,
                 bits_sign=None,
                 name=None,
                 variable=False,
                 reset=0,
                 reset_less=False,
                 name_override=None,
                 min=None,
                 max=None,
                 related=None,
                 attr=None):
        from migen.fhdl.bitcontainer import bits_for

        super().__init__()

        for n in [name, name_override]:
            if n is not None and not self._name_re.match(n):
                raise ValueError(
                    "Signal name {} is not a valid Python identifier".format(
                        repr(n)))

        # determine number of bits and signedness
        if bits_sign is None:
            if min is None:
                min = 0
            if max is None:
                max = 2
            max -= 1  # make both bounds inclusive
            assert (min < max)
            self.signed = min < 0 or max < 0
            self.nbits = _builtins.max(bits_for(min, self.signed),
                                       bits_for(max, self.signed))
        else:
            assert (min is None and max is None)
            if isinstance(bits_sign, tuple):
                self.nbits, self.signed = bits_sign
            else:
                self.nbits, self.signed = bits_sign, False
        if isinstance(reset, (bool, int)):
            reset = Constant(reset, (self.nbits, self.signed))
        if not isinstance(self.nbits, int) or self.nbits <= 0:
            raise ValueError(
                "Signal width must be a strictly positive integer")
        if attr is None:
            attr = set()

        self.variable = variable  # deprecated
        self.reset = reset
        self.reset_less = reset_less
        self.name_override = name_override
        self.backtrace = _tracer.trace_back(name)
        self.related = related
        self.attr = attr
Exemple #5
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 def __init__(self,
              bv=BV(),
              name=None,
              variable=False,
              reset=0,
              name_override=None):
     assert (isinstance(bv, BV))
     self.bv = bv
     self.variable = variable
     self.reset = Constant(reset, bv)
     self.name_override = name_override
     self.backtrace = tracer.trace_back(name)
Exemple #6
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    def __init__(self, bits_sign=None, name=None, variable=False, reset=0,
                 reset_less=False, name_override=None, min=None, max=None,
                 related=None, attr=None):
        from migen.fhdl.bitcontainer import bits_for

        super().__init__()

        for n in [name, name_override]:
            if n is not None and not self._name_re.match(n):
                raise ValueError(
                    "Signal name {} is not a valid Python identifier"
                    .format(repr(n)))

        # determine number of bits and signedness
        if bits_sign is None:
            if min is None:
                min = 0
            if max is None:
                max = 2
            max -= 1  # make both bounds inclusive
            assert(min < max)
            self.signed = min < 0 or max < 0
            self.nbits = _builtins.max(
                bits_for(min, self.signed), bits_for(max, self.signed))
        else:
            assert(min is None and max is None)
            if isinstance(bits_sign, tuple):
                self.nbits, self.signed = bits_sign
            else:
                self.nbits, self.signed = bits_sign, False
        if isinstance(reset, (bool, int)):
            reset = Constant(reset, (self.nbits, self.signed))
        if not isinstance(self.nbits, int) or self.nbits <= 0:
            raise ValueError(
                "Signal width must be a strictly positive integer")
        if attr is None:
            attr = set()

        self.variable = variable  # deprecated
        self.reset = reset
        self.reset_less = reset_less
        self.name_override = name_override
        self.backtrace = _tracer.trace_back(name)
        self.related = related
        self.attr = attr
Exemple #7
0
    def __init__(self,
                 bits_sign=None,
                 name=None,
                 variable=False,
                 reset=0,
                 name_override=None,
                 min=None,
                 max=None,
                 related=None,
                 attr=None):
        from migen.fhdl.bitcontainer import bits_for

        _Value.__init__(self)

        # determine number of bits and signedness
        if bits_sign is None:
            if min is None:
                min = 0
            if max is None:
                max = 2
            max -= 1  # make both bounds inclusive
            assert (min < max)
            self.signed = min < 0 or max < 0
            self.nbits = _builtins.max(bits_for(min, self.signed),
                                       bits_for(max, self.signed))
        else:
            assert (min is None and max is None)
            if isinstance(bits_sign, tuple):
                self.nbits, self.signed = bits_sign
            else:
                self.nbits, self.signed = bits_sign, False
        if not isinstance(self.nbits, int) or self.nbits <= 0:
            raise ValueError(
                "Signal width must be a strictly positive integer")
        if attr is None:
            attr = set()

        self.variable = variable  # deprecated
        self.reset = reset
        self.name_override = name_override
        self.backtrace = _tracer.trace_back(name)
        self.related = related
        self.attr = attr
Exemple #8
0
    def __init__(self,
                 bits_sign=None,
                 name=None,
                 variable=False,
                 reset=0,
                 name_override=None,
                 min=None,
                 max=None,
                 related=None):
        from migen.fhdl.bitcontainer import bits_for

        Value.__init__(self)

        # determine number of bits and signedness
        if bits_sign is None:
            if min is None:
                min = 0
            if max is None:
                max = 2
            max -= 1  # make both bounds inclusive
            assert (min < max)
            self.signed = min < 0 or max < 0
            self.nbits = builtins.max(bits_for(min, self.signed),
                                      bits_for(max, self.signed))
        else:
            assert (min is None and max is None)
            if isinstance(bits_sign, tuple):
                self.nbits, self.signed = bits_sign
            else:
                self.nbits, self.signed = bits_sign, False
        assert (isinstance(self.nbits, int))

        self.variable = variable  # deprecated
        self.reset = reset
        self.name_override = name_override
        self.backtrace = tracer.trace_back(name)
        self.related = related