Verilator

12/18/2018

02:05 PM Issue #1378 (Closed): SystemVerilog array initialization crashes verilator with no useful error m...

If we have a SV packed structure with several elements and we try to initialize it as an array list, but the array li... Viktor Tomov

12/16/2018

12:26 AM Issue #1377: Segmentation Fault when tracing is enabled

Perhaps you didn't link with -ggdb?
A test case would be appreciated.
Wilson Snyder

12/15/2018

11:22 PM Issue #1377: Segmentation Fault when tracing is enabled

Wilson Snyder wrote:
> >Program received signal SIGSEGV, Segmentation fault. 0x0000000000026816 in ?? ()
>
> You ... Aaron Kelly

01:15 PM Issue #1377: Segmentation Fault when tracing is enabled

>Program received signal SIGSEGV, Segmentation fault. 0x0000000000026816 in ?? ()
You need to compile with debug o... Wilson Snyder

02:36 AM Issue #1377: Segmentation Fault when tracing is enabled

Wilson Snyder wrote:
> Thanks.
>
> There's numerous trace control methods, probably --trace-depth is the first to... Aaron Kelly

12:43 AM Issue #1377 (AskedReporter): Segmentation Fault when tracing is enabled

Thanks.
There's numerous trace control methods, probably --trace-depth is the first to try, see others in the manu... Wilson Snyder

12:24 AM Issue #1377 (NotEnoughInfo): Segmentation Fault when tracing is enabled

Hi all,
First off let me thank you for this amazing software - I have compiled a 250k gate design with some of the... Aaron Kelly

12/13/2018

08:58 PM Issue #1376 (Closed): Incorrect array contents in FST and LXT2 output formats

The bit string created by the VerilatedFst::array2Str() method is incorrect.
The two for() loops should be swapped.
Aleksander Osman

03:19 AM Issue #1372: XML output insufficiently qualified

Applied. No worries, easy as long as you give patches!
Wilson Snyder

12/12/2018

05:11 PM Issue #1372: XML output insufficiently qualified

That resolution didn't last long. It turns out AstVarXRef's are not qualified with the path
of the interface that th... Jonathan Kimmitt

06:18 AM Issue #1328: Parameter with type string cause compile error when passed to $readmemh(...)

Apologies for the radio silence. Life got in the way of hobby and I wasn't able to look at this. Unfortunately this w... Arjen Roodselaar

12/11/2018

08:43 AM Issue #1372: XML output insufficiently qualified

Thanks. I'm hoping that's enough to get up and running. I am considering this patch provisionally closed.
Jonathan Kimmitt

12:12 AM Issue #1372: XML output insufficiently qualified

Patch 6 pushed.
Wilson Snyder

12/10/2018

05:36 PM Issue #1372: XML output insufficiently qualified

interface modportnames are not mentioned in the typetable (which leaves direction of module interface ports ambiguous... Jonathan Kimmitt

12:26 PM Issue #1372: XML output insufficiently qualified

Patch 5 pushed, no worries!
Wilson Snyder

12:07 PM Issue #1372: XML output insufficiently qualified

Dear Wilson,
I realized too late that the patch previously submitted does not cover dumping port directions for mo... Jonathan Kimmitt

12/06/2018

05:10 PM Issue #1373: Cannot write to top-level tristate ports

> Would you be willing to take a look at fixing this?
Hm I am not currently set up to compile verilator from sourc... Stephen Richardson

01:38 AM Issue #1373 (Feature): Cannot write to top-level tristate ports

Verilator doesn't currently support tristate resolution that is a mix of external and internal drivers.
What it sh... Wilson Snyder

12:28 PM Issue #1372: XML output insufficiently qualified

Huh, I'll see what's up with git.
Meantime attached.
Wilson Snyder

12:24 PM Issue #1372: XML output insufficiently qualified

http://git.veripool.org/git/verilator seems to be down, so I can't see your final version.
Jonathan Kimmitt

12:14 PM Issue #1372 (Resolved): XML output insufficiently qualified

Great, fixed in git towards 4.010.
Note used empty() instead of length() as Google static lint tool will complain ... Wilson Snyder

11:50 AM Issue #1372: XML output insufficiently qualified

That version failed in a rather obvious way, please find attached third, and hopefully final attempt.
Jonathan Kimmitt

09:45 AM Issue #1372: XML output insufficiently qualified

This is a second attempt, which tries harder to dump the more interesting information, and also identifies interfaces... Jonathan Kimmitt

01:07 AM Issue #1372 (AskedReporter): XML output insufficiently qualified

I'm fine with this concept but can you instead please update the patch to add a method to VDirection and AstVarType c... Wilson Snyder

12/05/2018

06:30 PM Issue #1373 (Feature): Cannot write to top-level tristate ports

DESCRIPTION of the bug:
Top level has bidirectional port bus1 and direction bit en1. When
en1==0, bus1 is used as ... Stephen Richardson

04:19 PM Issue #1372 (Closed): XML output insufficiently qualified

The xml output generated by the verilator --xmlonly command is insufficiently qualified when it comes to toplevel por... Jonathan Kimmitt

12/04/2018

06:46 AM Issue #1369: Raise error / warning on continous assignment to reg

Thank you for the fix! verilator now raises error on _internal_reg_ but does not recognize the case of _out_ signal i... Peter Gerst

12/01/2018

08:17 PM Issue #1370 (Closed): Slow file compiled with OPT_FAST when --output-split is used

In 4.008.
Wilson Snyder

08:17 PM Issue #1349 (Closed): Cygwin verilator_coverage fails due to cygwin bug in getline()

In 4.008.
Wilson Snyder

08:17 PM Issue #1364 (Closed): Verilator hangs in malloc() when assignment pattern key is not found

In 4.008.
Wilson Snyder

08:17 PM Issue #1369 (Closed): Raise error / warning on continous assignment to reg

In 4.008.
Wilson Snyder

03:25 PM Issue #1369 (Resolved): Raise error / warning on continous assignment to reg

Fixed in git towards 4.008.
Wilson Snyder

08:17 PM Issue #1360 (Closed): Adding support for passing by reference

In 4.008.
Wilson Snyder

08:17 PM Verilator 4.008 Released

* Verilator 4.008 2018-12-01
*** Support "ref" and "const ref" pins and functions, bug1360. [Jake Longo]
*** ... Wilson Snyder

11/30/2018

10:26 AM Issue #1370 (Resolved): Slow file compiled with OPT_FAST when --output-split is used

Good catch, the tests weren't checking the right options were used and of course what isn't tested is broken ;)
Fi... Wilson Snyder

06:50 AM Issue #1369: Raise error / warning on continous assignment to reg

Xilinx ISE 14.7 syntheser complains about this:... Peter Gerst

11/29/2018

11:13 PM Issue #1366 (AskedReporter): Large increase in design header file with threads and tracing

Can you share an example of the sort of things that are getting massively expanded (e.g. are in the combined file but... Wilson Snyder

11:12 PM Issue #1369 (Feature): Raise error / warning on continous assignment to reg

I believe the code sent is legal in SystemVerilog, so no warning is appropriate. What complains and does it support ... Wilson Snyder

01:09 PM Issue #1370 (Closed): Slow file compiled with OPT_FAST when --output-split is used

Hi, I'm trying to speed up the build time of a moderately large verilator model.
So I'm verilating with --output-... Thomas Watts

11/28/2018

01:52 PM Issue #1369 (Confirmed): Raise error / warning on continous assignment to reg

Verilator does not throw error / warning on continuous assignment to a register. See the following example:
conten... Peter Gerst

11/27/2018

10:05 AM Issue #1367 (NoFixNeeded): [newbie] Is there a way to keep SystemC port types "sc_uint<xx>" ?

--pins-bv 1 might do what you want. See also --pins-sc-biguint.
Wilson Snyder

06:20 AM Issue #1367 (NoFixNeeded): [newbie] Is there a way to keep SystemC port types "sc_uint<xx>" ?

Understood that, it will suffer in sim speed. It would be good to keep the interface so simulations can be "true". ... Ayewin Oung

12:13 AM Issue #1349 (Resolved): Cygwin verilator_coverage fails due to cygwin bug in getline()

Thanks for the patch.
Work around added to git towards 4.008.
Wilson Snyder

11/26/2018

10:30 PM RISC-V Contest Chooses Verilator

The 2018 RISC-V design contest has announced all submissions must be submitted only using Verilator.
The contest i... Wilson Snyder

11/25/2018

11:47 PM Issue #1349 (Assigned): Cygwin verilator_coverage fails due to cygwin bug in getline()

Thanks for figuring out a work around, will need to decide how to best support this. Note the code as written is lega... Wilson Snyder

11/24/2018

08:36 AM Issue #1349: Cygwin verilator_coverage fails due to cygwin bug in getline()

Hi,
I had exactly this same situation. After some tracing works, I come to this quick and dirty fix:... Affe Mao

11/23/2018

10:38 AM Issue #1366 (AskedReporter): Large increase in design header file with threads and tracing

When using both threads and tracing (VM_TRACE=1), and separate build steps for the design library (Vdesign__ALL.a) an... Al Grant