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Author SHA1 Message Date
Charlotte f4b013ac73 lib.data: no loop required, we return or die. 2023-07-02 05:31:42 +00:00
Charlotte cdf8fcc32f lib.enum: allow import * from amaranth.lib.enum. 
There's an actual `py_enum.member` (which we briefly overwrite our loop
index with (!)).  We delete our `member`, but it's still in the
`__all__` that came from `py_enum`, so `import *` fails.
 2023-06-29 04:24:38 +00:00
Adam Greig 45b9730786 Implement RFC 6: CRC Generator 
See amaranth-lang/rfcs#6 and #681.
 2023-06-29 02:42:47 +00:00
Charlotte 60c2a1b4b8 sim._pyrtl: don't blow parser stack on older Pythons. 
Python pre-3.9 can't handle parentheses nested this deeply.

* https://github.com/amaranth-lang/amaranth/pull/681 -- motivating
  example.
* https://github.com/amaranth-lang/amaranth/pull/827 -- what added
  enough extra parentheses to make this only break now.
* https://peps.python.org/pep-0617/ -- new parser as of 3.9.
 2023-06-29 01:28:44 +00:00
Charlotte fd4e25df42 test_sim: failing test case. 2023-06-29 01:28:44 +00:00
Catherine b77e33f16a Drop support for Python 3.7. 2023-06-28 14:50:30 +00:00
Charlotte 99417d6499 sim._pyrtl: mask bitwise binary operands. 
Boolean negation produces negative integers, which when unmasked
drastically affects the result of these operations.
 2023-06-24 06:34:48 +00:00
Charlotte 59a83cf7eb test_sim: add failing test case for bitwise binary ops. 
See https://github.com/amaranth-lang/amaranth/pull/826#event-9609577585.
 2023-06-24 06:34:48 +00:00
Charlotte 4ec9cbbffe sim._pyrtl: py3.12+: convert to int before bitwise negating. 
Amaranth bitwise negation `~` compiles to Python bitwise negation `~` in
simulation; the same holds for comparison operators such as `==`. Thus
an expression such as `~(a == b)` in simulation will compile to Python
that takes the bitwise negation of the comparison result, which will be
an actual bool.

On 3.12, the result is a `DeprecationWarning` emitted only at simulation
run-time.

When negating in simulation, coerce the value to an int. `mask` is
sufficient as we do no further arithmetic here.
 2023-06-22 17:37:30 +00:00
Charlotte 63f9976267 tests.test_sim.SimulatorRegressionTestCase.test_bug_588: fix for Windows paths. 2023-06-22 03:52:55 +00:00
Charlotte d218273b9b hdl.ast: deprecate Repl and remove from AST; add Value.replicate. 2023-06-22 03:52:55 +00:00
Marcelina Kościelnicka b1cce87630 hdl.ast: make Value.__abs__ return unsigned shape. 2023-06-07 23:20:26 +00:00
Marcelina Kościelnicka 51391be1ae hdl.ast: ensure Value.cast in Part and Slice constructors. 2023-06-07 19:53:16 +00:00
Marcelina Kościelnicka 1b0fb1afbc hdl.ast: fix src_loc for Slice. 2023-06-07 19:52:14 +00:00
Marcelina Kościelnicka 3d3846e996 hdl.ast: fix ValueKey.__eq__. 2023-06-07 15:32:21 +00:00
Catherine 20db537162 CI: add PyPy3.8 and PyPy3.9. 2023-06-07 14:51:46 +00:00
Catherine 46433268cd docs/changes: update. 2023-06-07 13:50:04 +00:00
Marcelina Kościelnicka 1d5e090580 hdl.ast: fix shape for subtraction. 
Fixes #813.
 2023-06-07 12:34:30 +00:00
Marcelina Kościelnicka 3180a17fd9 hdl.ast: fix Slice validation. 
Fixes #810.
 2023-06-07 12:26:36 +00:00
Marcelina Kościelnicka c7984463c7 hdl.ast: fix range handling in Shape.cast. 
Fixes #803.
 2023-06-07 12:26:30 +00:00
Catherine fcbc8bd46f CI: enable building merge queue. 2023-06-07 13:22:38 +01:00
Marcelina Kościelnicka a6e33abc5f hdl.ast: guard rotate_* against 0-width values. 
Fixes #808.
 2023-06-07 12:12:24 +01:00
Marcelina Kościelnicka 656db317d2 hdl.ast: fix signed Const normalization. 
Fixes #805.
 2023-06-07 11:22:52 +01:00
psentee 0681cb77b1
pyproject: relax pyvcd requirement to include 0.4. 
The only breaking change in 0.4 is dropping support for Python 3.6,
which Amaranth has already dropped. It also adds official support for
3.10 and 3.11.

3ad7340072/CHANGELOG.rst
 2023-06-04 19:42:05 +00:00
Catherine a4402b507f hdl.dsl: py3.12+: turn off heuristic warning on ~True and ~False. 
There is now an upstream deprecation warning for the same.
We don't have to duplicate it.
 2023-06-02 13:45:15 +01:00
Catherine 58b8acac0d _toolchain.cxx: remove. 
This is causing issues on Python 3.12 and in any case should be
based on the Python `ziglang` package instead of this cursed
setuptools hack.
 2023-06-02 13:45:15 +01:00
Marcelina Kościelnicka c343e879d3 tracer: fix STORE_DEREF handling, add EXTENDED_ARG support. 
This fixes the following issues:

- on Python 3.10 and earlier, storing to free variables is now handled
  correctly
- on Python 3.11, `_varname_from_oparg` is now used, fixing problems
  with cell variables that are also arguments
- on all supported versions, EXTENDED_ARG is now parsed, ensuring proper
  handling for long functions

Fixes #792.
 2023-06-01 19:18:43 +01:00
Catherine 2a45d0e9ad lib.data: warn if a field is shadowed by an attribute of the view. 
Fixes #796.
 2023-05-31 13:27:20 +01:00
Catherine f96604f667 lib.data: make all layouts immutable. 
This is actually an existing correctness requirement (for the similar
reasons that ValueCastable.as_value() must always return the same
value every time) that for some reason wasn't respected.
 2023-05-23 23:19:29 +01:00
Catherine 52b9d3f799 Implement RFC 15: Lifting shape-castable objects. 
See amaranth-lang/rfcs#15 and #784.

Note that this RFC breaks the existing syntax for initializing a view
with a new signal. Instances of `View(layout)` *must* be changed to
`Signal(layout)`.
 2023-05-23 12:37:21 +01:00
Catherine 8af90620c0 CI: fix the document action for divergent branches. 
This was never intended to merge anything.
 2023-05-22 21:37:01 +01:00
Catherine 7d99981d57 Implement RFC 15: Lifting shape-castable objects. 
See amaranth-lang/rfcs#15 and #784.

Note that this RFC breaks the existing syntax for initializing a view
with a new signal. Instances of `View(layout)` *must* be changed to
`Signal(layout)`.
 2023-05-15 19:42:12 +01:00
Jean-François Nguyen e9975587bf build.plat: replace -+ characters in _all_toolchain_env_vars. 
Mixed-case variables are allowed since af7c1144, but '-' or '+' must be
replaced to avoid invalid names (e.g. "$AMARANTH_ENV_oss-cad-suite").
 2023-05-15 18:25:49 +01:00
Catherine a70cfa05cd lib.data: fix incorrect and very misleading example in documentation. 
Found while working on amaranth/rfcs#15. The new code is also robust
in the face of RFC 15 itself (the value returned by Signal will change
but that will save work for the programmer).
 2023-05-15 10:55:44 +01:00
Catherine 54d5c4c047 Implement RFC 9: Constant initialization for shape-castable objects. 
See amaranth-lang/rfcs#9 and #771.
 2023-05-12 23:41:57 +01:00
Catherine ea5a150155 lib.data: fix documentation style. NFC 2023-05-12 23:41:57 +01:00
Catherine 7166455a6a lib.data: implement extensibility as specified in RFC 8. 
See amaranth-lang/rfcs#8 and #772.
 2023-05-12 20:03:08 +01:00
Catherine 68e292c681 lib.data: add reference documentation. 2023-05-12 19:54:47 +01:00
Catherine a5ffa38e64 CI: fix publish-docs job. 2023-05-12 17:31:23 +00:00
Catherine 61a8f21319 CI: simplify publish-docs job. 2023-05-12 18:22:36 +01:00
Catherine 2d379d0010 CI: publish docs to GitHub pages in forks, per branch. 
This is useful for previewing how documentation renders in a PR.
 2023-05-12 18:22:36 +01:00
Catherine 4f70cd6294 CI: split document and publish steps, and skip publish in forks. 2023-05-12 18:22:36 +01:00
Catherine 4398575322 lib.enum: accept any const-castable expression as member value. 
This behavior was introduced by amaranth-lang/rfcs#4. See #755.
 2023-05-12 16:39:02 +01:00
Catherine bf8bbb0f63 lib.enum: check member value shapes before subclassing. NFCI 
This commit is a preparation for accepting const-castable expressions
as enum member values.

See #755.
 2023-05-12 16:39:02 +01:00
Catherine 5f6b36e91f Add a workaround for python-poetry/poetry#7702. 2023-03-22 10:37:06 +00:00
Catherine 46e0a00a08 Add a workaround for setuptools erroring out on stale git checkouts. 2023-03-22 02:09:43 +00:00
Arusekk 5f094a23eb hdl.ast: Test *Castable subclasses on definition. 
The __init_subclass__ method fires on class definition rather than use.
It also has the bonus impact that no __new__ method is defined, so the
classes can be correctly detected as mix-in classes by modules such as
enum.
 2023-03-21 23:22:47 +00:00
Josuah Demangeon a0307c343d docs: disambiguate Cat(a, b, ...) support for more than 2 arguments 
I had this confusion while reading the doc.

Someone else also likely did:
https://github.com/bl0x/learn-fpga-amaranth/blob/main/06_alu/soc.py#L111
 2023-03-21 14:16:27 +00:00
Catherine 80343d1c4c hdl.ast: warn on fencepost error in Signal(range(x), reset=x). 
Also, relax the language reference inset from "warning" to "note"
since this is no longer something developers have to keep in mind
explicitly.
 2023-03-13 20:38:41 +00:00
Catherine 32eabd9372 hdl.ast: remove Value.__hash__. 
This is already undefined when defining `Value.__eq__`, and it makes
typecheckers (mypy, pyright/pylance) unhappy.
 2023-03-06 19:44:53 +00:00