28 lines
889 B
Python
28 lines
889 B
Python
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from migen.fhdl.structure import *
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from migen.flow.actor import *
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from migen.corelogic import divider
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class Sum(Actor):
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def __init__(self, width):
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self.a = Signal(BV(width))
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self.b = Signal(BV(width))
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self.r = Signal(BV(width+1))
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Actor.__init__(self,
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SchedulingModel(SchedulingModel.COMBINATORIAL),
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[Sink(self, [self.a, self.b])],
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[Source(self, self.r)])
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def get_process_fragment(self):
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return Fragment([self.r.eq(self.a + self.b)])
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class Divider(Actor):
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def __init__(self, width):
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self.div = divider.Inst(width)
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Actor.__init__(self,
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SchedulingModel(SchedulingModel.SEQUENTIAL, width),
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[Sink(self, [self.div.dividend_i]), Sink(self, [self.div.divisor_i])],
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[Source(self, [self.div.quotient_o]), Source(self, [self.div.remainder_o])])
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def get_process_fragment(self):
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return self.div.get_fragment() + Fragment([self.div.start_i.eq(self.trigger)])
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