d85b909054
Internals: Use std:: for mem and str functions.
2022-09-14 21:10:19 -04:00
39af5d020e
Timing support ( #3363 )
...
Adds timing support to Verilator. It makes it possible to use delays,
event controls within processes (not just at the start), wait
statements, and forks.
Building a design with those constructs requires a compiler that
supports C++20 coroutines (GCC 10, Clang 5).
The basic idea is to have processes and tasks with delays/event controls
implemented as C++20 coroutines. This allows us to suspend and resume
them at any time.
There are five main runtime classes responsible for managing suspended
coroutines:
* `VlCoroutineHandle`, a wrapper over C++20's `std::coroutine_handle`
with move semantics and automatic cleanup.
* `VlDelayScheduler`, for coroutines suspended by delays. It resumes
them at a proper simulation time.
* `VlTriggerScheduler`, for coroutines suspended by event controls. It
resumes them if its corresponding trigger was set.
* `VlForkSync`, used for syncing `fork..join` and `fork..join_any`
blocks.
* `VlCoroutine`, the return type of all verilated coroutines. It allows
for suspending a stack of coroutines (normally, C++ coroutines are
stackless).
There is a new visitor in `V3Timing.cpp` which:
* scales delays according to the timescale,
* simplifies intra-assignment timing controls and net delays into
regular timing controls and assignments,
* simplifies wait statements into loops with event controls,
* marks processes and tasks with timing controls in them as
suspendable,
* creates delay, trigger scheduler, and fork sync variables,
* transforms timing controls and fork joins into C++ awaits
There are new functions in `V3SchedTiming.cpp` (used by `V3Sched.cpp`)
that integrate static scheduling with timing. This involves providing
external domains for variables, so that the necessary combinational
logic gets triggered after coroutine resumption, as well as statements
that need to be injected into the design eval function to perform this
resumption at the correct time.
There is also a function that transforms forked processes into separate
functions.
See the comments in `verilated_timing.h`, `verilated_timing.cpp`,
`V3Timing.cpp`, and `V3SchedTiming.cpp`, as well as the internals
documentation for more details.
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-08-22 13:26:32 +01:00
96a4b3e5a5
Update clang-format config and apply
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- Regroup and sort #include directives (like we used to, but automatic)
- Set AlwaysBreakTemplateDeclarations to true
2022-08-05 12:00:24 +01:00
3f7a248ed4
Refactor some of the Begin handling to a separate function ( #3426 )
...
Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
2022-05-16 20:45:33 +01:00
e6857df5c6
Internals: Rename Ast on non-node classes ( #3262 ). No functional change.
...
This commit has the following replacements applied:
s/\bAstUserInUseBase\b/VNUserInUseBase/g;
s/\bAstAttrType\b/VAttrType/g;
s/\bAstBasicDTypeKwd\b/VBasicDTypeKwd/g;
s/\bAstDisplayType\b/VDisplayType/g;
s/\bAstNDeleter\b/VNDeleter/g;
s/\bAstNRelinker\b/VNRelinker/g;
s/\bAstNVisitor\b/VNVisitor/g;
s/\bAstPragmaType\b/VPragmaType/g;
s/\bAstType\b/VNType/g;
s/\bAstUser1InUse\b/VNUser1InUse/g;
s/\bAstUser2InUse\b/VNUser2InUse/g;
s/\bAstUser3InUse\b/VNUser3InUse/g;
s/\bAstUser4InUse\b/VNUser4InUse/g;
s/\bAstUser5InUse\b/VNUser5InUse/g;
s/\bAstVarType\b/VVarType/g;
2022-01-02 14:03:20 -05:00
ca42be982c
Copyright year update.
2022-01-01 08:26:40 -05:00
c6dae40cf6
Support task name in $display %m ( #3211 ).
2021-11-26 20:38:48 -05:00
cd737065f2
Internals: More const. No functional change intended.
2021-11-26 17:55:36 -05:00
2742a8c813
Internals: No need for variable name on immediate visitors. No functional change intended.
2021-11-26 10:52:45 -05:00
05e12ab60e
Internals: More const. No functional change intended.
2021-11-26 10:52:45 -05:00
37e3c6da70
Internals: Add more const. No functional change intended.
2021-11-13 13:50:44 -05:00
8ecdc85cf7
Internals: C++11 style cleanups. No functional change.
2021-07-11 18:42:01 -04:00
766ad14ae0
Check function locals are referenced only when in scope
...
V3Broken now checks that AstVar nodes referenced in an AstCFunc are
either external, or appear in the tree before the reference, and are in
scope.
Fix V3Begin to move lifted AstVars to beginning of FTask, rather than
end, which trips the above check.
2021-07-10 15:20:19 +01:00
512fe0a2d1
Internals: Add const. No functional change.
2021-06-20 18:33:13 -04:00
bd602d0e2d
Copyright year update
2021-01-01 10:29:54 -05:00
b6ded59c2b
Internals: Use and enforce class final for ~5% performance boost.
2020-11-18 21:32:16 -05:00
1b0a48ea02
Internals: Use C++11 = default where obvious. No functional change intended.
2020-11-16 19:56:16 -05:00
23140aeff0
Internals: V3Begin code cleanup. No functional change.
2020-10-27 22:39:45 -04:00
e3a1954e20
Fix hierarchical references used inside a function ( #2267 ) ( #2572 )
2020-09-27 10:10:44 -04:00
bed3101dfc
Internals: Use VL_RESTORER class to save/restore vars. No functional change intended.
2020-08-24 21:13:28 -04:00
72d2cff0a1
C++11: Use member declaration initalizations. No functional change intended.
2020-08-16 11:44:06 -04:00
033e7ac020
C++11: Use member declaration initalizations. No functional change intended.
2020-08-16 11:44:06 -04:00
042d3eed23
C++11: Use override where possible. No functional change.
2020-08-16 11:44:05 -04:00
c0127599df
C++11: Use nullptr. No functional change.
2020-08-16 11:44:05 -04:00
7c54a451a9
C++11: Remove pre-c11 VL_OVERRIDE etc. No functional change.
2020-08-16 11:44:05 -04:00
95534fa5c5
Remove unused headers ( #2389 )
2020-05-31 20:21:07 +01:00
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
f3308d236b
clang-format remaining sources. No functional change.
2020-04-15 07:58:34 -04:00
19b472cf0b
Internals: Cleanup unused nodep in visitors. No functional change intended.
2020-04-04 08:31:14 -04:00
4145a38c47
Fix duplicate typedefs in generate for, #2205 .
2020-03-26 18:10:20 -04:00
1ce360ed5b
Add SPDX license identifiers. No functional change.
2020-03-21 11:24:24 -04:00
68b6a0b667
Fix genblk naming with directly nested generate blocks, #2176 .
2020-02-25 22:21:16 -05:00
fbdf5f2dad
Internals: Mark all visit() with VL_OVERRIDE. Closes #2132 .
...
* Add VL_OVERRIDE macro so that compiler can tell my typo when trying to override a function.
* Mark visit() with VL_OVERRIDE. No functional change intended.
2020-01-21 17:35:56 -05:00
e8ff191a17
Internals: Prepare for hierarchical NodeModule's. No functional change intended.
2020-01-20 13:27:27 -05:00
623c4ec103
Internals: Create VL_DO_DANGLING. No functional change intended.
2020-01-16 20:17:11 -05:00
f23fe8fd84
Update copyright year.
2020-01-06 18:05:53 -05:00
5811ec07e6
Update URLs to https://verilator.org
2019-11-07 22:33:59 -05:00
771a301f66
Commentary: Remove newlines, upsets some patches. No functional change.
2019-10-04 20:17:11 -04:00
e556269692
Commentary - Spelling fixes
2019-09-12 07:22:22 -04:00
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
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
8a4aeddbb0
Copyright year update.
2019-01-03 19:17:22 -05:00
d87b9d25ca
Internals: Cleanup and standardize include order. No functional change intended.
2018-10-14 13:59:40 -04:00
595419b370
Internals: Sort includes for clang-tidy. No functional change intended.
2018-10-14 07:04:18 -04:00
e4d638c73d
Internals: Cleanup string casts. No functional change.
2018-10-13 22:02:39 -04:00
cd4e6b35b3
Internals: Standardize debug() function generation. No functional change intended.
2018-05-14 06:50:47 -04:00
05db8ce6c8
Internals: Move iterators to AstNVisitor to avoid null this.
2018-05-10 20:55:37 -04:00
54a101acbe
Internals: Fix -DLEAK_CHECKS failing due to visitor destructor being too late.
2018-03-10 12:57:50 -05:00
8e65d93d6d
Copyright year update. No functional change.
2018-01-02 18:05:06 -05:00
63361fc56e
Add performance information to --stats file.
2017-09-17 22:52:57 -04:00
e6d7e7e329
Version bump
2017-01-15 12:13:13 -05:00
7efa40966a
Internals: Remove second argument to visitors. No functional change intended.
2016-11-27 08:11:38 -05:00
b738d1960a
Copyright year update
2016-01-06 20:36:41 -05:00
5e54d3e41a
Fix interface inside generate, bug1001, bug1003.
...
Signed-off-by: Wilson Snyder <wsnyder@wsnyder.org>
2015-12-05 19:39:40 -05:00
52ae451f5c
Fix interface inside generate, bug998.
2015-11-14 09:06:09 -05:00
4fc9a906f6
Internals: Fix cppcheck warnings; add VL_DANGLING. No functional change.
2015-10-04 13:16:35 -04:00
0ee5743853
Add --dump-treei-<srcfile>, bug894.
2015-03-12 19:48:04 -04:00
4c91ade61d
Copyright year update
2015-01-07 18:25:53 -05:00
4422de0c6c
Copyright year update.
2014-01-06 19:28:57 -05:00
f07f6a26a8
cppcheck fixes
2013-02-03 13:27:37 -05:00
a8bbf7231b
Copyright year update.
2013-01-01 09:42:59 -05:00
f685cf1d0c
Fix duplicate begin error broke in 3.840, bug548.
2012-08-10 19:39:18 -04:00
8b9b7178a2
Internals: MAJOR CHANGE. Combine V3Link and V3LinkDot stages for structures.
...
Functionality should be similar, but may introduce instability in resolving variables/cells.
Final merge from dot.
2012-07-21 17:12:42 -04:00
c6e7d87960
Commentary - Remove author lines as amany contributors now
2012-05-24 19:19:48 -04:00
50edef4ab2
Add Emacs indentation line. No functional change
2012-04-12 21:08:20 -04:00
c8e4b1fc84
Fix functions inside generate for block.
2012-02-21 22:23:06 -05:00
0de7cece5b
Fix hang when functions inside begin block.
2012-02-21 21:25:11 -05:00
c2c7c7bd9a
Copyright year update
2012-01-15 10:26:28 -05:00
362d642c87
Support "generate for (genvar i=0; ...".
2011-11-29 18:23:18 -05:00
a435ae98f9
Throw UNUSED/UNDRIVEN only once per net in a parametrized module.
2011-01-18 21:28:51 -05:00
71c1f00ec2
Copyright year update
2011-01-01 18:21:19 -05:00
850de5913d
With --Wall, add IFDEPTH warning on deep if statements.
2010-12-26 09:31:09 -05:00
cdd06e7236
Support "break", "continue", "return".
2010-02-14 10:01:21 -05:00
729dfdfed7
Copyright year update
2010-01-05 21:15:06 -05:00
17bf13fcb6
Support DPI context imports
2009-12-05 10:38:49 -05:00
e0bca07e06
Internals: Create AstNodeModule in prep for packages
2009-11-07 06:20:20 -05:00
700c1f836d
Internals: Move array definitions to AstArrayDType instead of under AstVars.
...
Prep work for more complicated data types.
2009-11-04 22:31:53 -05:00
4c26792c9b
Internals: Create data types and attach to AstVars, in prep for typedefs.
...
Added AstNodeDType and AstBasicDType and associated enums.
2009-11-02 08:06:04 -05:00
b1e6fe7139
Fix core dump with SystemVerilog var declarations under unnamed begins.
2009-10-11 20:50:31 -04:00
7df730cedd
Verilator is now licensed under LGPL v3 and/or Artistic v2.0.
2009-05-04 17:07:57 -04:00
d60d0a60c7
Support repeat and forever statements.
2009-02-25 22:06:59 -05:00
21b5a4e9e4
Add --debugi-<srcfile> option.
2009-01-21 16:56:50 -05:00
3d06720628
Copyright year update
2009-01-02 11:47:39 -05:00
3d788b4b93
Fix "Missing coverage in PSL" due to "cover property $stop" statements.
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"cover property" reported hierarchy now includes named begin blocks.
2008-11-05 10:23:03 -05:00
e49fc945df
Fix GCC 4.3 compile error; bug35
2008-10-15 10:49:05 -04:00
20aa21d4b6
Replace stdio.h and stdarg.h with C++ versions
2008-06-30 13:11:25 -04:00
52912c6329
Convert repository to git from svn.
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- Change .cvsignore to .gitignore
- Remove Id metacomments
- Cleanup whitespace at end of lines
2008-06-09 21:25:10 -04:00
d6e9c72424
Fix compile errors under Fedora 9, GCC 4.3.0.
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@1068 77ca24e4-aefa-0310-84f0-b9a241c72d87
2008-05-28 19:58:18 +00:00
8e812058cb
Change website references to veripool.org
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@1039 77ca24e4-aefa-0310-84f0-b9a241c72d87
2008-04-25 12:14:27 +00:00
a2ffe86a36
Copyright update
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@976 77ca24e4-aefa-0310-84f0-b9a241c72d87
2008-01-15 14:29:08 +00:00
c18f9da400
Put display scope tracking under special node type
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@936 77ca24e4-aefa-0310-84f0-b9a241c72d87
2007-06-14 16:41:32 +00:00
98282114c9
Fix display %m names inside named blocks.
...
git-svn-id: file://localhost/svn/verilator/trunk/verilator@897 77ca24e4-aefa-0310-84f0-b9a241c72d87
2007-03-06 18:53:24 +00:00
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
3b554f4c5b
Rename config.h to config_build.h, and add cross compile notes.
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@842 77ca24e4-aefa-0310-84f0-b9a241c72d87
2006-12-18 19:20:45 +00:00
12ae70ba95
Prep for removing begin under first generate, but doesn't work. Commentary instead
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@782 77ca24e4-aefa-0310-84f0-b9a241c72d87
2006-09-11 20:42:47 +00:00
0a765fbb54
Fix function calls inside loop bounds
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@776 77ca24e4-aefa-0310-84f0-b9a241c72d87
2006-09-05 20:06:23 +00:00
ce10dbd11c
Version bump
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git-svn-id: file://localhost/svn/verilator/trunk/verilator@753 77ca24e4-aefa-0310-84f0-b9a241c72d87
2006-08-26 11:35:28 +00:00
Wilson Snyder
Krzysztof Bieganski
Geza Lore
James Pallister
Yutetsu TAKATSUKASA
Todd Strader