26 lines
705 B
Python
26 lines
705 B
Python
from .. import *
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__all__ = ["MultiReg"]
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class MultiReg:
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def __init__(self, i, o, odomain="sync", n=2, reset=0):
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self.i = i
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self.o = o
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self.odomain = odomain
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self._regs = [Signal(self.i.shape(), name="cdc{}".format(i),
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reset=reset, reset_less=True, attrs={"no_retiming": True})
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for i in range(n)]
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def elaborate(self, platform):
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if hasattr(platform, "get_multi_reg"):
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return platform.get_multi_reg(self)
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m = Module()
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for i, o in zip((self.i, *self._regs), self._regs):
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m.d[self.odomain] += o.eq(i)
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m.d.comb += self.o.eq(self._regs[-1])
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return m
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