usb-tools/amaranth
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

lib.cdc: MultiReg→FFSynchronizer.

Browse source 
Fixes #229.
This commit is contained in:
whitequark 2019-09-23 14:17:44 +00:00
parent b227352258
commit 8deb13cea3
7 changed files with 71 additions and 57 deletions
Download patch file Download diff file Expand all files Collapse all files

20
nmigen/compat/genlib/cdc.py
View file

@ -1,7 +1,7 @@
import warnings
from ...tools import deprecated
from ...lib.cdc import MultiReg as NativeMultiReg
from ...lib.cdc import FFSynchronizer as NativeFFSynchronizer
from ...hdl.ast import *
from ..fhdl.module import CompatModule
from ..fhdl.structure import If
@ -10,14 +10,20 @@ from ..fhdl.structure import If
__all__ = ["MultiReg", "GrayCounter", "GrayDecoder"]
class MultiReg(NativeMultiReg):
class MultiReg(NativeFFSynchronizer):
def __init__(self, i, o, odomain="sync", n=2, reset=0):
old_opts = []
new_opts = []
if odomain != "sync":
warnings.warn("instead of `MultiReg(..., odomain={!r})`, "
"use `MultiReg(..., o_domain={!r})`"
.format(odomain, odomain),
DeprecationWarning, stacklevel=2)
super().__init__(i, o, o_domain=odomain, n=n, reset=reset)
old_opts.append(", odomain={!r}".format(odomain))
new_opts.append(", o_domain={!r}".format(odomain))
if n != 2:
old_opts.append(", n={!r}".format(n))
new_opts.append(", stages={!r}".format(n))
warnings.warn("instead of `MultiReg(...{})`, use `FFSynchronizer(...{})`"
.format("".join(old_opts), "".join(new_opts)),
DeprecationWarning, stacklevel=2)
super().__init__(i, o, o_domain=odomain, stages=n, reset=reset)
self.odomain = odomain