Commit Graph

137 Commits

Author SHA1 Message Date
Geza Lore 708abe0dd1 Introduce model interface class, make $root part or Syms (#3036)
This patch implements #3032. Verilator creates a module representing the
SystemVerilog $root scope (V3LinkLevel::wrapTop). Until now, this was
called the "TOP" module, which also acted as the user instantiated model
class. Syms used to hold a pointer to this root module, but hold
instances of any submodule. This patch renames this root scope module
from "TOP" to "$root", and introduces a separate model class which is
now an interface class. As the root module is no longer the user
interface class, it can now be made an instance of Syms, just like any
other submodule. This allows absolute references into the root module to
avoid an additional pointer indirection resulting in a potential speedup
(about 1.5% on OpenTitan). The model class now also contains all non
design specific generated code (e.g.: eval loops, trace config, etc),
which additionally simplifies Verilator internals.

Please see the updated documentation for the model interface changes.
2021-06-30 16:35:40 +01:00
Wilson Snyder dfab80fab1 Fix false TIMESCALEMOD on generate-ignored instances (#2838). 2021-03-16 22:52:29 -04:00
Wilson Snyder 26c0fa0a6a Fix --timescale-override not suppressing TIMESCALEMOD (#2838). 2021-03-16 22:42:28 -04:00
Wilson Snyder 12eb4e85ac Changed TIMESCALEMOD from error into a warning. (#2838) 2021-03-16 21:58:15 -04:00
Wilson Snyder 3a55600913 Internals: Restyle with C++11 using replacing typedef 2021-03-12 18:10:45 -05:00
github action 555269f791 Apply clang-format 2021-01-23 15:32:52 +00:00
Wilson Snyder 64941538b7 Fix TIMESCALE warnings on primitives (#2763). 2021-01-23 10:31:41 -05:00
Yutetsu TAKATSUKASA 7a18adc716
Emit timescale in hierarchical block only when timescale is specified (#2735)
* Add a test for hierarchical verilation without timescale

* Emit timeunit in hierarchical wrapper only when it is specified in the input design or command line option.

* Update src/V3AstNodes.h

Co-authored-by: Wilson Snyder <wsnyder@wsnyder.org>

Co-authored-by: Wilson Snyder <wsnyder@wsnyder.org>
2021-01-02 08:31:27 +09:00
Wilson Snyder bd602d0e2d Copyright year update 2021-01-01 10:29:54 -05:00
Wilson Snyder 212e8fb14b Internals: Cleanup some inlines, use constexpr. No functional change intended. 2020-12-01 18:49:03 -05:00
Wilson Snyder 79d33bf1ee Use C++11 for loops, from clang-migrate. No functional change intended 2020-11-10 22:10:38 -05:00
Wilson Snyder 1899a875a4 Internals: Create VAccess class. No functional change intended. 2020-09-07 17:09:25 -04:00
Wilson Snyder ac04e85a1c C++11: More range for. No functional change intended. 2020-08-16 12:54:32 -04:00
Wilson Snyder c0127599df C++11: Use nullptr. No functional change. 2020-08-16 11:44:05 -04:00
Wilson Snyder 7c54a451a9 C++11: Remove pre-c11 VL_OVERRIDE etc. No functional change. 2020-08-16 11:44:05 -04:00
Wilson Snyder 6de78d58fa Add new UNSUPPORTED error code to replace most previous Unsupported: messages. 2020-06-09 19:20:16 -04:00
Geza Lore a67ba04c37 Remove dead code and some unused parameters
Found with CLion inspections
2020-06-01 17:49:42 +01:00
Geza Lore 95534fa5c5
Remove unused headers (#2389) 2020-05-31 20:21:07 +01:00
Wilson Snyder d4f7f5297a
Support IEEE time units and time precisions, #234. (#2253)
Includes `timescale, $printtimescale, $timeformat.
VL_TIME_MULTIPLIER, VL_TIME_PRECISION, VL_TIME_UNIT have been removed
and the time precision must now match the SystemC time precision.
To get closer behavior to older versions, use e.g. --timescale-override
"1ps/1ps".
2020-04-15 19:39:03 -04:00
Wilson Snyder f3308d236b clang-format remaining sources. No functional change. 2020-04-15 07:58:34 -04:00
Wilson Snyder afa8e4c786 Internals: Favor const_iterator. No functional change. 2020-04-11 10:54:42 -04:00
Wilson Snyder 1ce360ed5b Add SPDX license identifiers. No functional change. 2020-03-21 11:24:24 -04:00
Wilson Snyder 5d9d1cc09f Internals: Favor const_iterator (in a few obvious spots, more needed). No functional change. 2020-03-15 18:34:09 -04:00
Wilson Snyder f23fe8fd84 Update copyright year. 2020-01-06 18:05:53 -05:00
Wilson Snyder 5811ec07e6 Update URLs to https://verilator.org 2019-11-07 22:33:59 -05:00
Wilson Snyder 91f1acd85f Add --protect-ids to obscure information in objects, bug1521. 2019-10-06 13:24:21 -04:00
Wilson Snyder 771a301f66 Commentary: Remove newlines, upsets some patches. No functional change. 2019-10-04 20:17:11 -04:00
Wilson Snyder fa904f386c Commentary - Spelling fixes 2019-09-09 07:50:21 -04:00
Wilson Snyder ee469eedaf Fix some errors reporting wrong objects. 2019-07-14 15:06:49 -04:00
Wilson Snyder 0f857ce423 In errors, single quote signals and other from-user data. 2019-07-11 22:09:30 -04:00
Wilson Snyder 8548ecfdac Internals: Add UASSERT_OBJ macro to replace hand-done ifs. No functional change intended.
This makes it easier to filter out correctly zero code-coverage lines.
2019-07-06 12:57:50 -04:00
Wilson Snyder f7641d2ecc Change MULTITOP to warning to help linting, see manual. 2019-06-30 16:46:48 -04:00
Wilson Snyder c514bb26e8 Always internal module wrapper TOP. 2019-06-22 13:43:49 -04:00
Wilson Snyder a58e7d94ec Error continuation lines no longer have %Error prefix. 2019-05-30 20:30:59 -04:00
Wilson Snyder b83b606267 Internals: Detab and fix spacing style issues. No functional change.
When diff, recommend using "git diff --ignore-all-space"
When merging, recommend using "git merge -Xignore-all-space"
2019-05-19 16:13:13 -04:00
Wilson Snyder 8a4aeddbb0 Copyright year update. 2019-01-03 19:17:22 -05:00
Wilson Snyder 0198a2e9f3 Fix error when no modules in , bug1381. 2019-01-02 18:38:49 -05:00
Wilson Snyder ad2929dff0 Support "ref" and "const ref" pins and functions, bug1360. 2018-10-30 20:50:09 -04:00
Wilson Snyder b8098098d8 Internals: Refactor input/output to new class in prep for ref support. 2018-10-27 17:29:00 -04:00
Wilson Snyder 304a24d03a Internals: Fix many clang-tidy issues. No functional change intended. 2018-10-14 18:39:33 -04:00
Wilson Snyder d87b9d25ca Internals: Cleanup and standardize include order. No functional change intended. 2018-10-14 13:59:40 -04:00
Wilson Snyder 595419b370 Internals: Sort includes for clang-tidy. No functional change intended. 2018-10-14 07:04:18 -04:00
Wilson Snyder e4d638c73d Internals: Cleanup string casts. No functional change. 2018-10-13 22:02:39 -04:00
Wilson Snyder 75f28fd446 Internals: Fix spacing of function calls. No functional change. 2018-08-25 09:52:45 -04:00
Wilson Snyder 597d28b505 Fix internals to make null-pointer-check clean. Also add more const's. No functional change intended, but likely something will break. 2018-02-01 21:32:58 -05:00
Wilson Snyder 94e8cf1de9 Internals: Use explicit std:: instead of using namespace std. No functional change intended. 2018-02-01 21:24:41 -05:00
Wilson Snyder 8e65d93d6d Copyright year update. No functional change. 2018-01-02 18:05:06 -05:00
Wilson Snyder 63361fc56e Add performance information to --stats file. 2017-09-17 22:52:57 -04:00
Wilson Snyder e6d7e7e329 Version bump 2017-01-15 12:13:13 -05:00
Wilson Snyder 691de22ae3 Add --l2-name option for controlling 'v' naming, bug1050. 2016-05-07 14:01:02 -04:00
Wilson Snyder b738d1960a Copyright year update 2016-01-06 20:36:41 -05:00
Wilson Snyder 0ee5743853 Add --dump-treei-<srcfile>, bug894. 2015-03-12 19:48:04 -04:00
Wilson Snyder 4c91ade61d Copyright year update 2015-01-07 18:25:53 -05:00
Wilson Snyder 2b5017e610 Fix tracing SystemC signals with structures, bug858. Remove SC tracing of wrapper. 2014-12-10 22:33:28 -05:00
Wilson Snyder 4422de0c6c Copyright year update. 2014-01-06 19:28:57 -05:00
Wilson Snyder d6e8b0263c Fix crash on 32-bit Ubuntu, bug670. 2013-09-03 21:40:43 -04:00
Wilson Snyder ae763ea93d Internals: Debugs for bug666. 2013-08-08 07:05:21 -04:00
Wilson Snyder 2d64077fd0 Internals: Prep to allow future move of wrapping. No functional change. 2013-05-25 10:15:10 -04:00
Wilson Snyder 175d59ecba Fix GCC version runtime changes, bug651. 2013-05-23 20:19:51 -04:00
Wilson Snyder a8bbf7231b Copyright year update. 2013-01-01 09:42:59 -05:00
Wilson Snyder c6e7d87960 Commentary - Remove author lines as amany contributors now 2012-05-24 19:19:48 -04:00
Wilson Snyder 87e8736823 IMPORTANT: Major internal changes for supporting complex data types.
Adds dtype() to every node, keep global table of dtypes and remove duplicates.
Final merge from dtype branch.
2012-04-29 10:14:13 -04:00
Wilson Snyder 50edef4ab2 Add Emacs indentation line. No functional change 2012-04-12 21:08:20 -04:00
Wilson Snyder c2c7c7bd9a Copyright year update 2012-01-15 10:26:28 -05:00
Wilson Snyder 71c1f00ec2 Copyright year update 2011-01-01 18:21:19 -05:00
Wilson Snyder 729dfdfed7 Copyright year update 2010-01-05 21:15:06 -05:00
Wilson Snyder ad0fcb745e Internals: Use common function to resolve task pins 2009-11-30 18:36:31 -05:00
Wilson Snyder 68567e763c Support "package" and $unit.
Add VARHIDDEN warning when signal name hides module name.
2009-11-07 21:05:02 -05:00
Wilson Snyder e0bca07e06 Internals: Create AstNodeModule in prep for packages 2009-11-07 06:20:20 -05:00
Wilson Snyder 7df730cedd Verilator is now licensed under LGPL v3 and/or Artistic v2.0. 2009-05-04 17:07:57 -04:00
Wilson Snyder 50f835c701 Fix segfault with error on bad --top-module, bug79. 2009-04-24 10:32:11 -04:00
Wilson Snyder 3d85cbe6b5 Fix "cloning" error with -y/--top-module, bug76. 2009-04-07 13:23:25 -04:00
Wilson Snyder 3d06720628 Copyright year update 2009-01-02 11:47:39 -05:00
Wilson Snyder a1e091cff7 Internals: Last commit showed that V3LinkLevel is mostly redundant with V3LinkCells 2008-12-09 21:05:47 -05:00
Wilson Snyder adebc99e49 Fix certain generate-if cells causing clone error. 2008-12-09 20:59:22 -05:00
Wilson Snyder ab668b066f Internal cleanup: no functional change.
Add cloneTree to each node type so cast not required after use.
Standardize declaring common AstNode functions via a macro.
2008-11-19 20:15:05 -05:00
Wilson Snyder adefa45fb4 After module, clear m_modp as not relevant any longer 2008-11-12 15:32:09 -05:00
Wilson Snyder 20aa21d4b6 Replace stdio.h and stdarg.h with C++ versions 2008-06-30 13:11:25 -04:00
Wilson Snyder 52912c6329 Convert repository to git from svn.
- Change .cvsignore to .gitignore
- Remove Id metacomments
- Cleanup whitespace at end of lines
2008-06-09 21:25:10 -04:00
Wilson Snyder 8e812058cb Change website references to veripool.org
git-svn-id: file://localhost/svn/verilator/trunk/verilator@1039 77ca24e4-aefa-0310-84f0-b9a241c72d87
2008-04-25 12:14:27 +00:00
Wilson Snyder 93531e520a Add --top-module option to select between multiple tops. [Stefan Thiede]
git-svn-id: file://localhost/svn/verilator/trunk/verilator@1010 77ca24e4-aefa-0310-84f0-b9a241c72d87
2008-03-25 19:57:41 +00:00
Wilson Snyder a2ffe86a36 Copyright update
git-svn-id: file://localhost/svn/verilator/trunk/verilator@976 77ca24e4-aefa-0310-84f0-b9a241c72d87
2008-01-15 14:29:08 +00:00
Wilson Snyder a583592cd4 Make error code for MULTITOP and document
git-svn-id: file://localhost/svn/verilator/trunk/verilator@875 77ca24e4-aefa-0310-84f0-b9a241c72d87
2007-01-18 14:30:45 +00:00
Wilson Snyder b5b1d94d4a Copyright date update
git-svn-id: file://localhost/svn/verilator/trunk/verilator@864 77ca24e4-aefa-0310-84f0-b9a241c72d87
2007-01-02 22:06:40 +00:00
Wilson Snyder 3b554f4c5b Rename config.h to config_build.h, and add cross compile notes.
git-svn-id: file://localhost/svn/verilator/trunk/verilator@842 77ca24e4-aefa-0310-84f0-b9a241c72d87
2006-12-18 19:20:45 +00:00
Wilson Snyder 4f42c25c7c Fix inout task arguments
git-svn-id: file://localhost/svn/verilator/trunk/verilator@795 77ca24e4-aefa-0310-84f0-b9a241c72d87
2006-09-25 20:40:52 +00:00
Wilson Snyder ce10dbd11c Version bump
git-svn-id: file://localhost/svn/verilator/trunk/verilator@753 77ca24e4-aefa-0310-84f0-b9a241c72d87
2006-08-26 11:35:28 +00:00