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Author SHA1 Message Date
Jacob Lifshay 58f1d4bcb6
sim.pysim: write the next, not curr signal value to the VCD file 
This is a temporary fix for #429.
 2020-07-13 02:10:01 +00:00
whitequark 0a90aa1b17 sim.pysim: use VCD aliases to reduce space and time overhead. 
On Minerva SoC, this reduces VCD file size by about 35%, and reduces
runtime overhead of writing VCDs by 10% or less.
 2020-07-11 12:26:34 +00:00
whitequark 30e2f91176 sim: simplify. NFC. 2020-07-08 17:31:53 +00:00
whitequark d7a87fef42 back.pysim→sim.pysim; split into more manageable parts. 
This is necessary to add cxxrtl as an alternate simulation engine.
 2020-07-08 12:49:38 +00:00
whitequark 23da2fdda6 vendor.xilinx_{7series,ultrascale}: remove grade property. 
This was added in commit bfd4538d based on a misunderstanding of how
Xilinx part numbers work.
 * non-ultrascale 7-series parts don't have temperature grades;
 * ultrascale parts have temperature grade as a part of speed grade.
 2020-07-08 09:08:00 +00:00
whitequark 6d417568ad back.pysim: only extract signal names if VCD is requested. 
This commit also fixes an issue introduced in 2606ee33 that regressed
simulator startup time and bloated VCD files. (It's actually about
10% faster now than *before* the regression was introduced.)
 2020-07-08 08:33:45 +00:00
whitequark 3c3cfd48fb back.pysim: reset timeline as well. 
This is a bug that was introduced in 94faf497b.
 2020-07-08 08:19:29 +00:00
whitequark 90e2a991f0 back.pysim: simplify. NFC. 2020-07-08 06:31:04 +00:00
whitequark 94faf497ba back.pysim: extract timeline handling to class _Timeline. NFC. 2020-07-08 06:31:04 +00:00
whitequark d3d210eaee back.pysim: extract simulator commands to sim._cmds. NFC. 2020-07-08 05:42:33 +00:00
whitequark e435a21715 back.pysim: simplify. NFC. 2020-07-08 03:55:09 +00:00
awygle 659b0e8189
hdl.ast: don't inherit Shape from NamedTuple. 
Fixes #421.
 2020-07-07 05:17:03 +00:00
whitequark cee43f0de1 back.pysim: simplify. 
Compiled process names were never particularly useful (comments in
the source would make more sense for debugging), and coroutine
process names were actually source locations.
 2020-07-07 04:29:13 +00:00
whitequark c9030eb3cd back.pysim: simplify. NFC. 2020-07-07 04:19:05 +00:00
whitequark db4529a178 back.pysim: simplify. NFC. 2020-07-07 04:09:10 +00:00
whitequark 2efeb05c63 back.pysim: synchronize waveform writing with cxxrtl. 2020-07-07 04:09:02 +00:00
whitequark e012e62ade back.pysim: synchronize terms with cxxrtl. NFC. 2020-07-07 03:38:39 +00:00
whitequark c9ac85a045 back.pysim: simplify. NFC. 2020-07-07 03:38:39 +00:00
whitequark 8f6eab0f6c back.pysim: simplify. NFC. 2020-07-07 03:38:39 +00:00
whitequark 23758e30bc Remove everything deprecated in nmigen 0.2. 2020-07-07 03:38:39 +00:00
Alan Green 3a4576e033 Update license and copyright info 
Remove non-license explanatory text from LICENSE.txt.

Create CONTRIBUTING file with instructions and notes for contributors.

This change relates to issue #412
 2020-07-06 23:11:10 +00:00
Konrad Beckmann d4946b060a vendor.lattice_ecp5: Add support for io with xdr=7 
This adds support for IOs with xdr=7 using the
IODDR71B and ODDR71B primitives.
 2020-07-06 16:12:07 +00:00
Konrad Beckmann 981e674081 vendor.lattice_ecp5: Add support for io with xdr=4 
This adds support for IOs with xdr=4 using the
IDDRX2F and ODDRX2F primitives.
 2020-07-06 16:12:07 +00:00
whitequark 175c8a596e docs: use working sphinxcontrib-platformpicker. 2020-07-05 23:51:14 +00:00
whitequark 1fbd7f1d08 docs: use sphinxcontrib-platformpicker. 
Fixes #416.
 2020-07-05 23:39:47 +00:00
whitequark f1153352c0 docs: link to community tutorials until we have an official one. 2020-07-04 02:09:35 +00:00
whitequark f24f1b02e8 docs/lang: document constshifts. 2020-07-02 23:11:35 +00:00
whitequark 76b3ef4b13 docs/index: rename to "Language & toolchain". 2020-07-02 23:08:10 +00:00
whitequark fd5ee548b6 test: remove FHDLTestCase.assertRaisesRegex. 
This method is only there because I misunderstood the documentation
of unittest.
 2020-07-02 22:50:20 +00:00
whitequark 8dd28fecc6 compat.fhdl.specials: fix handling of tristate (i=None) pins. 
Fixes #406.
 2020-07-02 22:22:44 +00:00
whitequark 369bc3e307 _yosys→_toolchain.yosys 2020-07-02 18:26:08 +00:00
whitequark 6bfff25e76 vendor: yosys is not a required tool for proprietary toolchains. 
Since commit b9799b4c, the discovery mechanism for the Yosys required
to produce Verilog is different from the usual require_tool(); namely
it is possible to produce Verilog without a `yosys` binary on PATH.

Fixes #419.
 2020-07-02 18:13:54 +00:00
whitequark 14845af235 setup: add wheel as setup dependency. 
See commit 416b2531ae.
See commit 7fca037f9c.
 2020-07-01 21:05:57 +00:00
whitequark ba1b4c20c8 setup: gracefully recover from missing setuptools_scm. 2020-07-01 21:04:04 +00:00
whitequark d5d3bc4b1a setup: link to the right documentation version from pip metadata. 2020-07-01 20:49:41 +00:00
whitequark 102565f6de Update README. 2020-07-01 20:17:10 +00:00
whitequark 75a466537e Update README. 2020-07-01 19:16:01 +00:00
whitequark 7fa4b348a9 docs/install: use pip/pip3 more consistently. 2020-07-01 08:58:36 +00:00
whitequark 6c0530cf4e docs: clarify naming. 2020-07-01 08:53:52 +00:00
whitequark 416b2531ae Revert "Add PEP 518 pyproject.toml." 
This reverts commit 7fca037f9c.

This broke editable installs and has to be reverted due to a number
of pip issues:
  * pypa/pip#6375
  * pypa/pip#6434
  * pypa/pip#6438

We can put this back once PEP 517/518 support editable installs.
Until then the legacy behavior will suffice, and we should just teach
people to install the dependencies in virtualenvs or something...
 2020-07-01 08:24:47 +00:00
whitequark 76c7e70582 docs: add a crude approximation of intersphinx toctrees. 
This is a pretty awful hack. We could do this properly after one of
the following issues is fixed:
  * sphinx-doc/sphinx#701
  * sphinx-doc/sphinx#1836
 2020-07-01 08:03:57 +00:00
whitequark 126f0be731 Gracefully handle missing dependencies. 
Some people's workflows involve not using `pip`. This is not
a recommended way to use nMigen, but is prevalent enough for good
enough reason that we try to keep them working anyway.
 2020-07-01 07:00:02 +00:00
whitequark f5670a9b71 docs/install: fix dead link. 2020-07-01 06:33:03 +00:00
whitequark 43da4e3f0a docs/install: quote special chars to avoid issues with extended glob. 2020-07-01 06:32:15 +00:00
whitequark f50303ca7c docs/install: explain how to install non-editable snapshot from git. 2020-07-01 06:15:16 +00:00
whitequark 7fca037f9c Add PEP 518 pyproject.toml. 
This is necessary to be able to install nMigen into a virtualenv that
does not have `wheel` installed in certain cases.

See #349.
 2020-07-01 05:58:34 +00:00
whitequark adbc947274 docs/install: use pip install --user on *nix. 2020-07-01 05:06:20 +00:00
whitequark 78c027fb36 docs/install: reduce repetition. 2020-07-01 04:11:51 +00:00
whitequark 7d25bd50c7 README: update to refer to documentation where applicable. 2020-07-01 04:08:02 +00:00
whitequark 20baea401b docs: reword slightly. 2020-07-01 03:59:16 +00:00