22 lines
659 B
Python
22 lines
659 B
Python
from migen.fhdl.std import *
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from migen.fhdl.specials import SynthesisDirective
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from migen.fhdl import verilog
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from migen.genlib.cdc import *
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class XilinxMultiRegImpl(MultiRegImpl):
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def __init__(self, *args, **kwargs):
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MultiRegImpl.__init__(self, *args, **kwargs)
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self.specials += set(SynthesisDirective("attribute shreg_extract of {r} is no", r=r)
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for r in self.regs)
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class XilinxMultiReg:
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@staticmethod
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def lower(dr):
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return XilinxMultiRegImpl(dr.i, dr.o, dr.odomain, dr.n)
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ps = PulseSynchronizer("from", "to")
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v = verilog.convert(ps, {ps.i, ps.o}, special_overrides={MultiReg: XilinxMultiReg})
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print(v)
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