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Author SHA1 Message Date
whitequark
f2d7a18756 cxxrtl: emit debug information for constant wires. 
Constant wires can represent a significant chunk of the design in
generic designs or after optimization. Emitting them in VCD files
significantly improves usability because gtkwave removes all traces
that are not present in the VCD file after reload, and iterative
development suffers if switching a varying signal to a constant
disrupts the workflow.
 2020-06-08 17:29:08 +00:00
whitequark
d5c07e5b6f cxxrtl: track aliases in VCD writer. 
This commit changes the VCD writer such that for all signals that
share `debug_item.curr`, it would only emit a single VCD identifier,
and sample the value once.

Commit 9b39c6f7 added redundancy to debug information by including
alias wires, and increased the size of VCD files proportionally; this
commit eliminates the redundancy from VCD files so that their size
is the same as before.
 2020-06-08 17:10:45 +00:00
whitequark
9b39c6f744 cxxrtl: emit debug information for alias wires. 
Alias wires can represent a significant chunk of the design in highly
hierarchical designs; in Minerva SRAM, there are 273 member wires and
527 alias wires. Showing them in every hierarchy level significantly
improves usability.
 2020-06-08 17:09:49 +00:00
whitequark
a0466e1a96 cxxrtl: add missing installs of include files. 2020-06-08 12:55:11 +00:00
whitequark
8262997c4e cxxrtl: fix typo in comment. NFC. 2020-06-08 12:50:35 +00:00
whitequark
fb3704c896 cxxrtl: minor debug-related improvements. 2020-06-08 12:50:35 +00:00
whitequark
210d129d9a
Merge pull request #2116 from whitequark/cxxrtl-vcd 
cxxrtl: add a VCD writer using debug information
 2020-06-07 20:32:00 +00:00
whitequark
ff5500f11a cxxrtl: rename cxxrtl.cc→cxxrtl_backend.cc. 
To avoid confusion with the C++ source files that are a part of
the simulation itself and not a part of Yosys build.
 2020-06-07 03:48:40 +00:00
whitequark
31f6c96b1f cxxrtl: add a C API for writing VCD dumps. 
This C API is fully featured.
 2020-06-07 03:48:00 +00:00
whitequark
68362a9053 cxxrtl: only write VCD values that were actually updated. 
On a representative design (Minerva SoC) this reduces VCD file size
by ~20× and runtime by ~3×.
 2020-06-07 03:48:00 +00:00
whitequark
9c36102669 cxxrtl: add a VCD writer using debug information. 2020-06-07 03:48:00 +00:00
whitequark
534be6670d
Merge pull request #2115 from whitequark/cxxrtl-introspection 
cxxrtl: add debug information to the C++ API, and add introspection via a new C API
 2020-06-06 22:31:52 +00:00
whitequark
c399359ed6 cxxrtl: add a C API for driving and introspecting designs. 
Compared to the C++ API, the C API currently has two limitations:
  1. Memories cannot be updated in a race-free way.
  2. Black boxes cannot be implemented in C.
 2020-06-06 21:12:55 +00:00
whitequark
f6e16e7f4c cxxrtl: generate debug information for non-localized public wires. 
Debug information describes values, wires, and memories with a simple
C-compatible layout. It can be emitted on demand into a map, which
has no runtime cost when it is unused, and allows late bound designs.

The `hdlname` attribute is used as the lookup key such that original
names, as emitted by the frontend, can be used for debugging and
introspection.
 2020-06-06 21:12:55 +00:00
whitequark
784bfec67c
Merge pull request #2110 from BracketMaster/master 
MacOS has even stricter stack limits in catalina.
 2020-06-06 12:23:06 +00:00
whitequark
bd2ecc2dd3
Merge pull request #2113 from whitequark/cxxrtl-fix-sshr 
cxxrtl: fix implementation of $sshr cell
 2020-06-05 10:24:25 +00:00
N. Engelhardt
9669e0c7d5
Merge pull request #2109 from nakengelhardt/btor_internal_names 
btor backend: make not printing internal names default
 2020-06-05 11:36:08 +02:00
whitequark
025663adff cxxrtl: fix implementation of $sshr cell. 
Fixes #2111.
 2020-06-05 02:04:46 +00:00
Yehowshua Immanuel
da0778350b
more reasonable numbers for memory 2020-06-04 17:00:04 -04:00
Claire Wolf
7112f187cd Add missing .gitignore file 
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-06-04 22:25:47 +02:00
Yehowshua Immanuel
5d29a9f633
MacOS has even stricter stack limits in catalina. 
Invoking sby in macOS Catalina fails because of bizarre stack limits in Catalina.
 2020-06-04 14:01:56 -04:00
clairexen
352731df4e
Merge pull request #2041 from PeterCrozier/struct 
Implementation of  SV structs.
 2020-06-04 18:26:07 +02:00
clairexen
ba99c0ea81
Merge pull request #2099 from Xiretza/manual-include-path 
Use in-tree include directory in manual build
 2020-06-04 18:23:33 +02:00
N. Engelhardt
d8d8deeaf4
Add codeowners file (#2098) 2020-06-04 18:20:08 +02:00
Eddie Hung
69850204c4
Merge pull request #2077 from YosysHQ/eddie/abc9_dff_improve 
abc9: -dff improvements
 2020-06-04 08:15:25 -07:00
N. Engelhardt
82798ae575 btor backend: make not printing internal names default 2020-06-04 16:24:16 +02:00
Claire Wolf
5e8a9c61cd Add printf format attributes to btorf/infof helper functions 
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-06-04 15:53:28 +02:00
clairexen
8efe6ee7f5
Merge pull request #2108 from nakengelhardt/btor_internal_names 
btor backend: add option to not include internal names
 2020-06-04 15:48:40 +02:00
N. Engelhardt
8ceb6686e0 btor backend: add option to not include internal names 2020-06-04 14:00:52 +02:00
whitequark
3bffd09d64
Merge pull request #2006 from jersey99/signed-in-rtlil-wire 
Preserve 'signed'-ness of a verilog wire through RTLIL
 2020-06-04 11:23:06 +00:00
N. Engelhardt
44f1e65155
Merge pull request #2070 from hackfin/master 
Pyosys API: idict type handling
 2020-06-04 11:17:08 +02:00
Eddie Hung
45cd323055
Merge pull request #2082 from YosysHQ/eddie/abc9_scc_fixes 
abc9: fixes around handling combinatorial loops
 2020-06-03 17:35:46 -07:00
Peter Crozier
0d3f7ea011
Merge branch 'master' into struct 2020-06-03 17:19:28 +01:00
Eddie Hung
8a11019d38 tests: tidy up testcase 2020-06-03 08:41:55 -07:00
Eddie Hung
46ed0db2ec
Merge pull request #2080 from YosysHQ/eddie/fix_test_warnings 
tests: reduce test warnings
 2020-06-03 08:37:07 -07:00
whitequark
577859fbdb
Merge pull request #2104 from whitequark/simplify-techmap 
techmap: simplify
 2020-06-03 12:45:02 +00:00
whitequark
fb5b070e7e techmap: remove dead variable. NFC. 2020-06-03 01:44:06 +00:00
whitequark
0a74368bfc techmap: use C++11 default member initializers. NFC. 2020-06-02 23:43:20 +00:00
whitequark
f3e86bb32a techmap: simplify. 
`rewrite_filename` is already called in `Frontend::extra_args`.
 2020-06-02 23:43:20 +00:00
whitequark
68d747f767 techmap: use +/techmap.v instead of an ad-hoc code generator. 2020-06-02 23:43:20 +00:00
clairexen
4b3f48a7ec
Merge pull request #2102 from YosysHQ/tests_fix 
allow range for mux test
 2020-06-02 17:13:08 +02:00
clairexen
2ed045738b
Merge pull request #2101 from YosysHQ/mmicko/verific_asymmetric 
Support asymmetric memories for verific frontend
 2020-06-02 17:12:02 +02:00
Miodrag Milanovic
0a88f002e5 allow range for mux test 2020-06-01 13:48:19 +02:00
Miodrag Milanovic
71072d1945 Support asymmetric memories for verific frontend 2020-06-01 10:30:03 +02:00
clairexen
ff785cdb46
Merge pull request #1862 from boqwxp/cleanup_techmap 
Clean up `passes/techmap/techmap.cc`
 2020-05-31 20:40:48 +02:00
Eddie Hung
08d9703ecb abc9_ops: fix comment 2020-05-30 09:01:03 -07:00
Eddie Hung
fe273faad1
Merge pull request #2081 from YosysHQ/eddie/blackbox_ast 
blackbox: use Module::makeblackbox() method
 2020-05-30 08:59:20 -07:00
Eddie Hung
ea4374a223 abc9_ops: update messaging (credit to @Xiretza for spotting) 2020-05-30 08:57:48 -07:00
clairexen
ea46ed81f9
Merge pull request #2018 from boqwxp/qbfsat-timeout 
smtbmc and qbfsat: Add timeout option to set solver timeouts for Z3, Yices, and CVC4.
 2020-05-30 15:04:51 +02:00
Xiretza
8b0ec3c3a2
Use in-tree include directory in manual build 
This is basically the same issue as in tests/various/plugin.sh,
which uses yosys-config to compile a plugin. `yosys-config --cxxflags`
points to `$PREFIX/share/` (/usr/local/share by default), which might
not exist yet or might be out of date. Building directly from the
headers in ./share/ avoids this.
 2020-05-30 11:21:40 +02:00