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Implement RFC 59: Get rid of upwards propagation of clock domains

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Wanda 2024-04-02 18:45:24 +02:00 • committed by Catherine
parent 09d5540430
commit 0e4c2de725
4 changed files with 62 additions and 4 deletions
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docs/changes.rst
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@ -38,6 +38,7 @@ Apply the following changes to code written against Amaranth 0.4 to migrate it t
* Replace imports of ``amaranth.asserts.{Assert, Assume, Cover}`` with imports from ``amaranth.hdl``
* Remove any usage of ``name=`` with assertions, possibly replacing them with custom messages
* Ensure all elaboratables are subclasses of :class:`Elaboratable`
* Ensure clock domains aren't used outside the module that defines them, or its submodules; move clock domain definitions upwards in the hierarchy as necessary
Implemented RFCs
@ -53,6 +54,7 @@ Implemented RFCs
.. _RFC 51: https://amaranth-lang.org/rfcs/0051-const-from-bits.html
.. _RFC 53: https://amaranth-lang.org/rfcs/0053-ioport.html
.. _RFC 55: https://amaranth-lang.org/rfcs/0055-lib-io.html
.. _RFC 59: https://amaranth-lang.org/rfcs/0059-no-domain-upwards-propagation.html
.. _RFC 62: https://amaranth-lang.org/rfcs/0062-memory-data.html
* `RFC 17`_: Remove ``log2_int``
@ -64,6 +66,7 @@ Implemented RFCs
* `RFC 50`_: ``Print`` statement and string formatting
* `RFC 51`_: Add ``ShapeCastable.from_bits`` and ``amaranth.lib.data.Const``
* `RFC 53`_: Low-level I/O primitives
* `RFC 59`_: Get rid of upwards propagation of clock domains
Language changes
@ -88,6 +91,7 @@ Language changes
* Changed: :class:`Instance` IO ports now accept only IO values, not plain values. (`RFC 53`_)
* Deprecated: :func:`amaranth.utils.log2_int`. (`RFC 17`_)
* Deprecated: :class:`amaranth.hdl.Memory`. (`RFC 45`_)
* Deprecated: upwards propagation of clock domains. (`RFC 59`_)
* Removed: (deprecated in 0.4) :meth:`Const.normalize`. (`RFC 5`_)
* Removed: (deprecated in 0.4) :class:`Repl`. (`RFC 10`_)
* Removed: (deprecated in 0.4) :class:`ast.Sample`, :class:`ast.Past`, :class:`ast.Stable`, :class:`ast.Rose`, :class:`ast.Fell`.