Commit Graph

56 Commits

Author SHA1 Message Date
Matthias Koefferlein fb60e01f45 WIP: refactoring. Goal is to supply a netlist builder object for caching netlist build information 2023-01-19 12:08:50 +01:00
Matthias Koefferlein af30695ab3 WIP: experimental - introducing net DRC, first steps 2023-01-07 21:56:25 +01:00
Matthias Koefferlein a85dbd3d31 Updating copyright notice to 2023 2023-01-01 22:27:22 +01:00
Matthias Köfferlein 716369de63
Issue 1126 (#1128)
* First attempt to fix. Rather experimental.

* Debugging and bug fixing

The basic issue was a missing break
However, correct computation of cache results for instance-to-instance cluster
interaction is implemented
Plus: identical and overlapping instances are no longer ignored except in the
case of exact duplicates. Otherwise these instance generate dead nets which
are not connected elsewhere.

* Added tests, fixed duplicate cells test, added missing files.

* Code simplification (removed invariant from transformation in cluster-to-cluster interaction cache)

* Skipping cell instance duplicates as some real-world testcases mandate so

* Updated test data
2022-08-01 18:50:07 +02:00
Matthias Koefferlein 10456516db Updated copyright to 2022, preparations for 0.27.6 (was delayed due to code signing certificate issues) 2022-01-04 21:20:04 +01:00
Matthias Koefferlein 2c8d065eb3 Some enhancments + test update
1. Be more careful with net names
Net names are used now for sorting the graph nodes, but not for
strict compare. This is useful to derive swappable pins for
blackbox circuits.

2. Be more careful with pins from schematic netlist
Pins from schematic netlist without a corresponding pin on the layer
side are treated as mandatory unless connected to a trivial net.
Pins connecting to non-trivial nets inside the subcircuit are always
considered mandatory.
This way schematic pins enforce corresponding layout pins.
On the other hand, layout pins connecting to trivial nets inside
the subcircuit are considered non-mandatory.
2021-07-18 22:34:02 +02:00
Matthias Koefferlein 1285868546 Skip private-only tests without private data access 2021-05-01 21:36:52 +02:00
Matthias Koefferlein 9f295523e4 explicit net joining - preparations 2021-03-27 21:56:53 +01:00
Matthias Koefferlein d1e6845ae4 Replaced std::auto_ptr by std::unique_ptr because the latter is deprecated 2021-01-23 21:55:51 +01:00
Matthias Koefferlein 7d4310d343 Updated copyright to 2021 2021-01-05 22:57:48 +01:00
Matthias Köfferlein 52f54ab39e
Fixed #648 (join_nets should work on global nets too) (#655) 2020-10-10 23:15:36 +02:00
Matthias Köfferlein 2d0a9418f9
Implemented #579 (perimeter_only mode for antenna check) (#582)
* WIP: added basic feature and tests.

* WIP: provide tests are GSI binding of new antenna check

* Fixed issue #579 (perimeter_only mode for antenna check)

* Updated DRC doc for 'perimeter_only'
2020-06-05 10:55:07 +02:00
Matthias Köfferlein 6601d472bf
Implemented #570 (perimeter included in antenna check) (#572)
* First implementation of the perimeter factor for antenna check, unit tests.

* Bugfix and unit tests for GSI binding of new antenna check version.

* DRC integration of perimeter-enabled antenna check.

* Enhanced DRC doc for antenna rule
2020-05-30 21:45:48 +02:00
Matthias Koefferlein c682cc85d0 Generalized concept of region, texts etc. into 'shape collections'. Fixed LVS and DRC tests. 2020-05-21 23:59:30 +02:00
Matthias Koefferlein 4c13bb96a0 WIP: refactoring - texts for net extractor. 2020-05-20 00:21:06 +02:00
Matthias Koefferlein b35429291e WIP: join_nets implemented, join_symmetric_nets: enhanced detection of symmetric nets. 2020-02-27 00:52:03 +01:00
Matthias Koefferlein b8c82c4f8b Updated copyright notice to 2020 2020-01-05 00:59:43 +01:00
Matthias Koefferlein da1ac3661f WIP: bugfix of refactoriung, update test data. 2019-12-15 00:16:47 +01:00
Matthias Koefferlein 79f4f8bc57 Update unit test for issue-417 branch. 2019-11-23 01:45:56 +01:00
Matthias Koefferlein e25d4784ea Updated tests. 2019-10-26 01:48:50 +02:00
Matthias Koefferlein 506cfc1c6f WIP: attempt to retain nets which don't have active elements but pins. This is supposed to simplify debugging in case of fake pins. When removing those nets, the pin is very difficult to find. 2019-09-30 20:58:55 +02:00
Matthias Koefferlein 60ed0cdc89 Updated test golden data (mainly: nets are not purged when there is a subcircuit pin on it) 2019-08-29 23:26:03 +02:00
Matthias Koefferlein b4fa4b1bae Flattening of layout with circuit flattening.
Technically, the layout isn't flattened, but connections are made
which allow regenerating the layout even after the circuit
has been flattened.
2019-07-27 00:37:22 +02:00
Matthias Koefferlein 0d623bc57a Avoid netlist extraction issues with duplicate instances
So far, duplicate instances have lead to net propagation
into parent cells and floating nets. This is fixed by ignoring
duplicate instances where possible.
2019-06-13 13:33:28 +02:00
Matthias Koefferlein c684633dd6 Some enhancements for netlist extraction and writer
* Spice writer can now be configure to skip the debug
  comments
* < and > are allowed chars in spice names now
* global net names have second prio over labels now
2019-05-31 00:11:28 +02:00
Matthias Koefferlein 548f16f1df WIP: tried to provide a more consistent net building feature (here: building hierarchical nets with properties as net annotation - needs cell variants if properties are assigned to subcells too) 2019-05-04 00:37:38 +02:00
Matthias Koefferlein 2aaec56adb WIP: netlist browser - extended the net export scheme of build_net to support net annotation and flattening. 2019-05-03 23:33:37 +02:00
Matthias Koefferlein 9613ad72c8 WIP: netlist compare - using it for more tests
Issue solved: some circuit pins may not have a net - these
need to be ignored.

Requirement: all pins with a net must be mapped.

Detached pins are not present in the mapping table.
A dummy mapping table was introduced to allow dropping
of pins in the second circuit too.

Output of compare should not depend on memory location
anymore and pin mismatch reporting should include all
pins.
2019-03-31 23:59:43 +02:00
Matthias Koefferlein 06e326dfd9 WIP: netlist compare - some more tests by netlist compare. Needs fixing. 2019-03-31 19:00:42 +02:00
Matthias Koefferlein 2d4f23abd1 Updated tests. 2019-03-19 00:08:47 +01:00
Matthias Koefferlein d7eb9162ce WIP: unified to_string/to_parsable_string of db::Netlist, step 1 2019-03-18 19:28:20 +01:00
Matthias Koefferlein 6932977273 A few bug fixes and test updates
- edge pairs are normalized before turning them into polygons.
  This makes flat and deep implementation more consistent.
- deep region and flat regions were not cooperating in geo
  checks
- unnamed layers are not registered in make_layer - this
  does not make sense and will just hold a fake ref
- tests now use GDS to represent texts after transformation
  (with orientation, OASIS can't do this)
- texts are more consistently handled in the tests
- test debug output is not written in the same format
  than golden data unless special normalization is
  requested.
- a non-orientable polygon was converted to orientable in
  a text because this can be represented in GDS consistently
- DRC testsuite uses "polygons" instead of "input" to achieve
  identical behavior for deep and flat mode with respect to
  texts
- dbRegionTests are updated because texts are not allowed
  for non-original layers too
2019-03-09 19:40:38 +01:00
Matthias Koefferlein 261fb027fd GSI binding of antenna check function + tests. 2019-03-02 00:38:51 +01:00
Matthias Koefferlein 8d3b94201e Antenna check: tests added, 'catchall' diode protection 2019-03-01 23:07:28 +01:00
Matthias Koefferlein 9f4f2d58d7 First version of antenna check. 2019-02-28 23:56:49 +01:00
Matthias Koefferlein 4035c804b7 WIP: fixed bugs, added tests. 2019-02-28 22:23:20 +01:00
Matthias Koefferlein 36a3540e16 Allow empty regions for device extractor. 2019-02-25 23:51:21 +01:00
Matthias Koefferlein 21ea37f747 Updated test golden data. 2019-02-25 22:52:37 +01:00
Matthias Koefferlein d4ed21f42a Just new tests 2019-02-25 22:34:06 +01:00
Matthias Koefferlein c90f7e4af9 Introduced perimeter parameters for MOS3/MOS4 2019-02-02 01:29:28 +01:00
Matthias Koefferlein f83e1dae43 Refactoring, some bugfixes, GSI bindings for L2N methods. 2019-01-20 23:12:27 +01:00
Matthias Koefferlein 5962d66940 WIP: major enhancements with respect to device handling
The device handling in the netlist extractor was now
entirely moved to device cells. New options are introduced
for exporting these cells. Tests have been updated.
2019-01-15 21:33:41 +01:00
Matthias Koefferlein 9fa5618034 Added test for device combination. 2019-01-08 23:49:12 +01:00
Matthias Koefferlein d4d7ea8022 Updated copyright. 2019-01-08 01:09:25 +01:00
Matthias Koefferlein 315bcdd016 WIP: bugfixed netlist extractor with global nets. 2019-01-07 23:33:57 +01:00
Matthias Koefferlein c80e335cd6 WIP: global nets integration in cluster builder. 2019-01-07 02:08:59 +01:00
Matthias Koefferlein a4f0fd665e Provided a solution for connectivity through global nets. 2019-01-06 17:50:51 +01:00
Matthias Koefferlein eb435d5d85 WIP: refactoring - separated pins of net into outgoing and subcircuit. 2019-01-06 12:53:22 +01:00
Matthias Koefferlein ec3a3b0f8c WIP: added ability to export nets to layouts. 2019-01-06 01:32:20 +01:00
Matthias Koefferlein bc4f9efa5d One more test for probing with a slightly more complex hierarchy. 2019-01-05 23:21:37 +01:00