From: whitequark Date: Thu, 8 Aug 2019 08:09:28 +0000 (+0000) Subject: compat.fhdl.decorators: port from oMigen. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c7add529316ee626d51171002f48d998adf911c5;p=nmigen.git compat.fhdl.decorators: port from oMigen. --- diff --git a/nmigen/compat/__init__.py b/nmigen/compat/__init__.py index b8f412d..bdf1313 100644 --- a/nmigen/compat/__init__.py +++ b/nmigen/compat/__init__.py @@ -2,7 +2,7 @@ from .fhdl.structure import * from .fhdl.module import * from .fhdl.specials import * from .fhdl.bitcontainer import * -# from .fhdl.decorators import * +from .fhdl.decorators import * # from .fhdl.simplify import * from .sim import * diff --git a/nmigen/compat/fhdl/decorators.py b/nmigen/compat/fhdl/decorators.py new file mode 100644 index 0000000..933dcc0 --- /dev/null +++ b/nmigen/compat/fhdl/decorators.py @@ -0,0 +1,41 @@ +from ...hdl.ast import * +from ...hdl.xfrm import ResetInserter as NativeResetInserter +from ...hdl.xfrm import CEInserter as NativeCEInserter +from ...hdl.xfrm import DomainRenamer as NativeDomainRenamer + + +__all__ = ["ResetInserter", "CEInserter", "ClockDomainsRenamer"] + + +class _CompatControlInserter: + _control_name = None + _native_inserter = None + + def __init__(self, clock_domains=None): + self.clock_domains = clock_domains + + def __call__(self, module): + if self.clock_domains is None: + signals = {self._control_name: ("sync", Signal(name=self._control_name))} + else: + def name(cd): + return self._control_name + "_" + cd + signals = {name(cd): (cd, Signal(name=name(cd))) for cd in self.clock_domains} + for name, (cd, signal) in signals.items(): + setattr(module, name, signal) + return self._native_inserter(dict(signals.values()))(module) + + +class CompatResetInserter(_CompatControlInserter): + _control_name = "reset" + _native_inserter = NativeResetInserter + + +class CompatCEInserter(_CompatControlInserter): + _control_name = "ce" + _native_inserter = NativeCEInserter + + +ResetInserter = CompatResetInserter +CEInserter = CompatCEInserter +ClockDomainsRenamer = NativeDomainRenamer