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Implement RFC 27: Testbench processes for the simulator.

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Co-authored-by: Wanda <wanda@phinode.net>
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Catherine 2020-10-20 01:54:24 +00:00
parent f48b8650c4
commit 9e75962c35
7 changed files with 279 additions and 143 deletions
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13
docs/changes.rst
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@ -29,16 +29,21 @@ Apply the following changes to code written against Amaranth 0.4 to migrate it t
* Replace uses of ``Value.matches()`` with no patterns with ``Const(1)``
* Update uses of ``amaranth.utils.log2_int(need_pow2=False)`` to :func:`amaranth.utils.ceil_log2`
* Update uses of ``amaranth.utils.log2_int(need_pow2=True)`` to :func:`amaranth.utils.exact_log2`
* Update uses of ``Simulator.add_process`` to ``Simulator.add_testbench``
* Convert uses of ``Simulator.add_sync_process`` used as testbenches to ``Simulator.add_testbench``
* Convert uses of ``yield Tick()`` within remaining ``Simulator.add_sync_process`` to plain ``yield``
Implemented RFCs
----------------
.. _RFC 17: https://amaranth-lang.org/rfcs/0017-remove-log2-int.html
.. _RFC 27: https://amaranth-lang.org/rfcs/0027-simulator-testbenches.html
.. _RFC 39: https://amaranth-lang.org/rfcs/0039-empty-case.html
.. _RFC 46: https://amaranth-lang.org/rfcs/0046-shape-range-1.html
* `RFC 17`_: Remove ``log2_int``
* `RFC 27`_: Testbench processes for the simulator
* `RFC 39`_: Change semantics of no-argument ``m.Case()``
* `RFC 46`_: Change ``Shape.cast(range(1))`` to ``unsigned(0)``
@ -71,6 +76,14 @@ Standard library changes
* Removed: (deprecated in 0.4) :class:`amaranth.lib.fifo.SyncFIFO` with ``fwft=False``. (`RFC 20`_)
Toolchain changes
-----------------
* Added: ``Simulator.add_testbench``. (`RFC 27`_)
* Deprecated: ``Settle`` simulation command. (`RFC 27`_)
* Deprecated: ``Simulator.add_process``. (`RFC 27`_)
Platform integration changes
----------------------------