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275 commits

Author SHA1 Message Date
Catherine
78981232d9 hdl.xfrm: add assignment legalizer. 
Co-authored-by: Wanda <wanda@phinode.net>
 2024-02-11 09:03:49 +00:00
Wanda
45dbce13df hdl: consistently use "comb" for combinatorial domain. 
Fixes #1097.
 2024-02-09 19:32:55 +00:00
Wanda
b6c5294e50 hdl.MemoryInstance: refactor and add first-class simulation support. 2024-02-09 17:36:15 +00:00
Wanda
f4daf74634 sim: Add tests for memory access. 2024-02-09 17:36:15 +00:00
Wanda
6e06fc013f hdl.ir: associate statements with domains. 
Fixes #1079.
 2024-02-09 05:33:16 +00:00
Wanda
09854fa775 hdl.ast: make it impossible to construct *Castable instances. 
Fixes #1072.
 2024-02-09 05:26:58 +00:00
Catherine
9e75962c35 Implement RFC 27: Testbench processes for the simulator. 
Co-authored-by: Wanda <wanda@phinode.net>
 2024-02-06 23:12:07 +00:00
Wanda
f48b8650c4 sim: fix simulation loop when process catches an injected exception. 2024-02-06 18:55:11 +00:00
Vegard Storheil Eriksen
5e2f3b7992 Implement RFC 42: Const from shape-castable. 2024-02-06 10:18:12 +00:00
Wanda
089213e19f Implement RFC 46: Change Shape.cast(range(1)) to unsigned(0). 2024-02-06 10:05:10 +00:00
Catherine
357ffb680c hdl: remove Repl per RFC 10. 
Closes #770.
 2024-01-31 03:01:35 +00:00
Catherine
ea3d6c9557 docs/reference: document compat guarantee, importing, shapes. 
This commit also contains a related semantic change: it adds `Shape`
and `ShapeCastable` to the `__all__` list in `amaranth.hdl`. This is
consistent with the policy that is laid out in the new documentation,
which permits such additions without notice.

Co-authored-by: mcclure <mcclure@users.noreply.github.com>
 2024-01-30 22:54:18 +00:00
Catherine
5dd1223cf8 amaranth.hdl: start all private names with an underscore. 
This change completes commit 9dc0617e and makes all the tests pass.
It corresponds with the ongoing langauge reference documentation effort.

Fixes #781.
 2024-01-30 17:20:45 +00:00
Catherine
8678d5fa14 hdl.dsl: warn if a case is defined after a default case. 2024-01-30 02:54:48 +00:00
Wanda
e9299ccd0e hdl.ast: change warning on out-of-range reset to an error, improve it. 
Fixes #1019.
 2024-01-30 02:35:26 +00:00
Wanda
b40c18fb00 hdl.ast: suggest bit_select or word_select when indexing with Value. 
Fixes #1044.
 2024-01-18 20:06:55 +00:00
Wanda
ae36b596bb hdl.mem: Switch to first-class IR representation for memories. 
Fixes #611.
 2024-01-17 08:10:28 +00:00
Wanda
bf8faea51e hdl.ast: raise a sensible error for xxx in Value 2024-01-14 00:36:44 +00:00
Wanda
86d14f584e Implement RFC 39: Change semantics of no-argument m.Case(). 2024-01-13 22:33:54 +00:00
Wanda
7f76914b74 Implement RFC 17: Remove log2_int. 
Reexports of `amaranth.utils` functions are removed from
`amaranth._utils` to avoid a circular import issue (for `deprecated`).
Since this is a private module, this should not be a problem.
 2024-01-11 04:45:17 +00:00
Wanda
ea258fad71 Change uses of Case() to Default() in preparation for RFC 39. 2024-01-11 04:44:02 +00:00
Jaro Habiger
ded84fe9d6 sim: fix ValueCastable not being recognized as a coroutine command 2024-01-05 14:30:38 +00:00
Jaro Habiger
cc9fe89049 hdl.ast: fix Array not being indexable by ValueCastable 2024-01-03 13:46:16 +00:00
Wanda
0849e1af0b hdl.ast: make Slice const-castable. 
Fixes #1006.
 2023-12-30 11:28:03 +00:00
Wanda
6780c838b2 hdl.ast: fix Const.cast(Cat(...)) handling for signed numbers. 2023-12-30 11:27:08 +00:00
Wanda
8cd8cdde2b Implement RFC 20: Remove non-FWFT FIFOs. 
Fixes #875.
 2023-12-13 11:41:19 +00:00
Catherine
9d4ffab104 compat: remove. 
Fixes #692.
 2023-12-13 11:20:12 +00:00
Catherine
750cbbc3c7 hdl: remove deprecated Sample, Past, Stable, Rose, Fell. 2023-12-13 11:13:14 +00:00
Catherine
475b0f35dd Implement RFC 19: Remove amaranth.lib.scheduler. 
Closes #874.
 2023-12-13 09:53:54 +00:00
Catherine
a2aa07cbc7 lib.wiring: document amaranth-lang/rfcs#2. WIP 
Co-authored-by: Charlotte <charlotte@hrzn.ee>
 2023-12-11 22:57:30 +00:00
Jean-François Nguyen
d154bddf17 lib.wiring: preserve insertion order in SignatureMembers.__iter__. 2023-12-11 22:34:57 +00:00
Wanda
8e6ae9e6e0 Implement RFC 38: Component signature immutability. 
Fixes #996.
 2023-12-11 19:51:32 +00:00
Wanda
6ad0d21cc9 Implement RFC 37: Make `Signature` immutable. 
Fixes #995.
 2023-12-11 19:01:32 +00:00
Catherine
b9c2404f22 lib.wiring: make values of In and Out be strings "In" and "Out". 
Their `str()` and `repr()` values are already that; and the 0 and 1
don't make sense. The RFC leaves it unspecified.
 2023-12-11 18:04:37 +00:00
Wanda
e9545efb22 Implement RFC 35: Add ShapeLike, ValueLike. 2023-12-09 13:57:30 +00:00
Wanda
422ba9ea51 lib.wiring: use tracer to obtain default Signature path and src_loc. 
Fixes #987.
 2023-12-07 21:50:34 +00:00
Catherine
120375dabe lib.wiring: fix __repr__ for PureInterface subclasses. 
Fixes #988.
 2023-12-05 04:46:11 +00:00
Wanda
0cdcab0fbb Implement RFC 34: Rename amaranth.lib.wiring.Interface to PureInterface. 2023-12-04 21:41:47 +00:00
Wanda
ab6503e352 lib.wiring: add __repr__ to Interface. 2023-12-03 02:00:20 +00:00
Wanda
ef5cfa72bc Implement RFC 31: Enumeration type safety. 2023-11-29 10:50:34 +00:00
Wanda
c6000b1097 lib.data: implement equality for View, reject all other operators. 2023-11-27 21:44:52 +00:00
Catherine
04f906965a lib.wiring: in is_compliant(sig, obj), check that obj is an interface object with that signature. 
Fixes #935.
 2023-11-27 18:50:41 +00:00
Catherine
8b48af6de8 lib.wiring: make sig.members += actually work. 2023-11-27 15:42:24 +00:00
Catherine
a2e87b370e lib.wiring: fix typo in Signature.flatten. 2023-11-27 15:42:24 +00:00
Wanda
57748a66a6 lib.io: fix Pin.eq to work when FlippedInterface is involved. 
This was broken by #915, when platform started handing out
`FlippedInterface` versions of `Pin`.
 2023-11-27 06:35:55 +00:00
Catherine
74e613b49d lib.wiring: expand flipped object forwarding to respect @property and del. 
Although `@property` is the most common case, any descriptors are now
properly supported.

The special casing of methods goes away as they work by having functions
implement the descriptor protocol. (`__get__` has some special behavior
to make this possible.)

This is some of the most cursed code I have ever written, yet it is
obviously necessary.
 2023-11-26 12:53:59 +00:00
Catherine
79adbed313 sim.pysim: move name extractor functionality to Fragment. 
At the moment there are two issues with assignment of names in pysim:
1. Names are not deduplicated. It is possible (and frequent) for names
   to be included twice in VCD output.
2. Names are different compared to what is emitted in RTLIL, Verilog,
   or CXXRTL output.

This commit fixes issue (1), and issue (2) will be fixed by the new IR.
 2023-11-25 06:26:36 +00:00
Catherine
28e1d2833f test_lib_fifo: eliminate uses of deprecated Past and Rose. 2023-11-25 01:22:32 +00:00
William D. Jones
abd74ead55 lib.wiring: flip sub-interfaces accessed via FlippedInterface. 2023-11-22 03:07:41 +00:00
Catherine
f9da3c0d16 Pyupgrade to 3.8+. NFCI 2023-11-14 13:07:21 +00:00