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compat.fhdl.structure: handle If/Elif with multi-bit condition.

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whitequark 2018-12-15 00:10:54 +00:00
parent ecea721f43
commit 9010805040
1 changed files with 2 additions and 0 deletions
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2
nmigen/compat/fhdl/structure.py
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@ -29,10 +29,12 @@ def Constant(value, bits_sign=None):
class If(ast.Switch):
@deprecated("instead of `If(cond, ...)`, use `with m.If(cond): ...`")
def __init__(self, cond, *stmts):
cond = Value.wrap(cond).bool()
super().__init__(cond, {"1": ast.Statement.wrap(stmts)})
@deprecated("instead of `.Elif(cond, ...)`, use `with m.Elif(cond): ...`")
def Elif(self, cond, *stmts):
cond = Value.wrap(cond).bool()
self.cases = OrderedDict(("-" + k, v) for k, v in self.cases.items())
self.cases["1" + "-" * len(self.test)] = ast.Statement.wrap(stmts)
self.test = Cat(self.test, cond)