a57b76fb5d
These functions were originally changed in 3ed51938, in an attempt
to make them take one cycle instead of two. However, this does not
actually work because of drawbacks of the simulator interface.
Avoid committing to any specific implementation for now, and instead
make them compat-only extensions.
39 lines
1,003 B
Python
39 lines
1,003 B
Python
from ...tools import deprecated, extend
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from ...lib.fifo import FIFOInterface as NativeFIFOInterface, \
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SyncFIFO, SyncFIFOBuffered, AsyncFIFO, AsyncFIFOBuffered
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__all__ = ["_FIFOInterface", "SyncFIFO", "SyncFIFOBuffered", "AsyncFIFO", "AsyncFIFOBuffered"]
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class CompatFIFOInterface(NativeFIFOInterface):
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@deprecated("attribute `fwft` must be provided to FIFOInterface constructor")
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def __init__(self, width, depth):
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super().__init__(width, depth, fwft=False)
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del self.fwft
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_FIFOInterface = CompatFIFOInterface
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@extend(NativeFIFOInterface)
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def read(self):
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"""Read method for simulation."""
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assert (yield self.r_rdy)
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value = (yield self.r_data)
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yield self.r_en.eq(1)
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yield
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yield self.r_en.eq(0)
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yield
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return value
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@extend(NativeFIFOInterface)
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def write(self, data):
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"""Write method for simulation."""
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assert (yield self.w_rdy)
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yield self.w_data.eq(data)
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yield self.w_en.eq(1)
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yield
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yield self.w_en.eq(0)
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yield
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