Commit graph

92 commits

Author SHA1 Message Date
whitequark 585514e6ed hdl.ir: rework named port handling for Instances.
The main purpose of this rework is cleanup, to avoid specifying
the direction of input ports in an implicit, ad-hoc way using
the named ports and ports dictionaries.

While working on this I realized that output ports can be connected
to anything that is valid on LHS, so this is now supported too.
2019-04-22 07:46:47 +00:00
whitequark 44711b7d08 hdl.ir: detect elaboratables that are created but not used.
Requres every elaboratable to inherit from Elaboratable, but still
accepts ones that do not, with a warning.

Fixes #3.
2019-04-21 08:52:57 +00:00
whitequark 33f9bd2a1d hdl.ast: accept Signals with identical min/max bounds.
And produce a 0-bit signal.

Fixes #58.
2019-04-21 07:16:59 +00:00
whitequark ce1eff5464 hdl.rec: implement Record.connect.
Fixes #31.
2019-04-21 06:37:08 +00:00
whitequark 611c25f909 hdl.rec: fix slicing of records. 2019-04-19 19:55:39 +00:00
whitequark dda8f34d39 hdl.xfrm: handle classes that inherit from Record. 2019-04-18 17:06:33 +00:00
whitequark 50fa2516fa hdl.ast: fix some type checks. 2019-04-10 04:33:44 +00:00
whitequark 0a2a7025a6 hdl.xfrm: allow using FragmentTransformer on any elaboratable.
Fixes #29.
2019-04-10 00:23:11 +00:00
whitequark 49eef77c53 hdl: remove deprecated get_fragment() and lower() methods. 2019-04-09 23:53:43 +00:00
whitequark a74cacdc69 hdl.ast: handle a common typo, such as Signal(1, True). 2019-04-03 14:59:01 +00:00
anuejn 3c95299c4e hdl.rec: separate record and signal name with __, not _.
This makes names of signals within records less ambiguous, in case
they themselves have underscores within them.
2019-03-25 14:26:00 +00:00
whitequark 81ee2db163 hdl.ast: fix typo.
Fixes #49.
2019-03-25 10:50:39 +00:00
whitequark e93bf4bf4b tracer: factor out get_var_name(default=). 2019-03-03 18:21:22 +00:00
whitequark cac4b10b82 hdl.rec: remove __slots__.
Left in by mistake.
2019-03-03 18:21:22 +00:00
whitequark 8ee6bd80ff hdl.ir: raise a more descriptive error on non-elaboratable object. 2019-02-14 20:52:42 +00:00
whitequark bc5a127fd2 hdl.ast: fix ValueKey for Cat. 2019-01-26 23:25:34 +00:00
whitequark 4948162f33 hdl.ir: rename .get_fragment() to .elaborate().
Closes #9.
2019-01-26 02:31:12 +00:00
whitequark f71e0fffbb hdl.ast: fix shape calculation for *.
This was carried over from Migen, and is wrong there too.
Counterexample: 1'sd-1 * 4'sd-4 = 4'sd-4 (but should be 5'sd4).
2019-01-26 00:56:40 +00:00
whitequark 38b3c4af31 hdl.ast: implement shape for modulo operator. 2019-01-19 09:27:56 +00:00
whitequark 5e2b46f727 hdl.ast: add Value.implies. 2019-01-19 08:56:44 +00:00
whitequark c5d67b0461 hdl.xfrm: mark internal registers used in lowering Sample(). 2019-01-19 07:27:32 +00:00
whitequark b50b47d984 hdl.ast: give Assert and Assume their own src_loc.
This helps with patterns like `Assert(fsm.ongoing("IDLE"))`, which
would otherwise point into nMigen internals.
2019-01-19 00:08:51 +00:00
whitequark 66466a8a0e back.rtlil: only emit each AnyConst/AnySeq cell once.
These are semantically like signals, not like constants.
2019-01-18 01:34:48 +00:00
whitequark fa8e876356 hdl.ast: allow sampling ClockSignal, ResetSignal. 2019-01-17 05:23:06 +00:00
whitequark 8c96675580 hdl.ast: add Past, Stable, Rose, Fell. 2019-01-17 04:31:27 +00:00
whitequark 198efcad31 hdl.xfrm: add SampleLowerer. 2019-01-17 01:41:02 +00:00
whitequark b3de114d67 hdl.ast: add Sample. 2019-01-17 01:36:27 +00:00
whitequark cb2f18ee37 hdl.ast: fix naming of Signal.like() signals when tracer fails. 2019-01-16 17:20:38 +00:00
William D. Jones 77728c2dea hdl.xfrm: Add on_AnyConst and on_AnySeq abstract methods for ValueVisitor and children. 2019-01-15 22:52:45 +00:00
William D. Jones 6fdbc3d885 hdl.ast: Add AnyConst and AnySeq value types. 2019-01-15 22:52:45 +00:00
whitequark b534e92dd5 hdl.ir: allow explicitly requesting flattening. 2019-01-14 17:04:23 +00:00
whitequark 011bf2258e hdl: make ClockSignal and ResetSignal usable on LHS.
Fixes #8.
2019-01-14 15:38:16 +00:00
whitequark 664b4bcb3a hdl.dsl: cases wider than switch test value are unreachable.
In 3083c1d6 they were erroneously fixed via truncation.
2019-01-13 08:51:49 +00:00
whitequark 3083c1d6dd hdl.dsl: accept (but warn on) cases wider than switch test value.
Fixes #13.
2019-01-13 08:46:28 +00:00
whitequark a2b04d71d0 hdl.ast: allow slicing [n:n] into n-bit value. 2019-01-02 18:14:57 +00:00
William D. Jones f77dc40256 hdl.xfrm: Add Assert and Assume abstract methods for StatementVisitor, implement for children. 2019-01-02 11:17:39 +00:00
William D. Jones 2412650f56 hdl.dsl: Support Assert and Assume where an Assign can occur. 2019-01-02 11:17:39 +00:00
William D. Jones e6517a33c7 hdl.ast: Add Assert and Assign statements. 2019-01-02 11:17:39 +00:00
whitequark ea7e19ed5c hdl.ast: experimentally add Value._as_const.
Useful for writing e.g. decoders that accept Cat, etc as argument.
2019-01-01 09:50:39 +00:00
whitequark 3c07d8d52c hdl.rec: include record name in error message. 2019-01-01 03:39:12 +00:00
whitequark 031a9e2616 hdl.rec: use a helpful error on unknown field reference. 2019-01-01 03:35:34 +00:00
whitequark d78e6c155b hdl.mem: add DummyPort, for testing and verification. 2019-01-01 03:08:10 +00:00
whitequark 39eb2e8fa7 lib.cdc: fix tests to actually run. 2018-12-29 15:02:44 +00:00
whitequark 92a96e1644 hdl.rec: add basic record support. 2018-12-28 13:22:10 +00:00
whitequark d66bbb0df8 tracer: factor out get_src_loc(). 2018-12-28 01:31:24 +00:00
whitequark 470d66934f hdl.dsl: add support for fsm.ongoing(). 2018-12-27 16:19:01 +00:00
whitequark de50ccec90 hdl.mem: add missing __all__. 2018-12-27 16:19:01 +00:00
whitequark 35a44f017f hdl.dsl: forbid m.next= inside of FSM but outside of FSM state, too. 2018-12-26 12:42:43 +00:00
whitequark 934546e633 hdl.dsl: provide generated values for FSMs. 2018-12-26 12:39:05 +00:00
whitequark 040811c2e5 hdl.ir: add an API for retrieving generated values, like FSM signal.
This is useful for tests.
2018-12-26 12:35:35 +00:00