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base repository: m-labs/nmigen
base: c934fc66e90a
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head repository: m-labs/nmigen
compare: 1fc63a62c04a
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  • 1 commit
  • 1 file changed
  • 1 contributor

Commits on Aug 21, 2019

  1. back.pysim: allow coroutines as processes. 

    This is a somewhat obscure use case, but it is possible to use async
functions with pysim by carefully using @asyncio.coroutine. That is,
async functions can call back into pysim if they are declared in
a specific way:

  @asyncio.coroutine
  def do_something(self, value):
    yield self.reg.eq(value)

which may then be called from elsewhere with:

  async def test_case(self):
    await do_something(0x1234)

This approach is unfortunately limited in that async functions
cannot yield directly. It should likely be improved by using async
generators, but supporting coroutines in pysim is unobtrustive and
allows existing code that made use of this feature in oMigen to work.
    whitequark committed Aug 21, 2019
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